/* ========================================
   NUOIGAVUON.PRO - Main Stylesheet
   Vương Sản IP Nỗi Đau Template
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #2d5a27;
    --primary-dark: #1e3d1a;
    --primary-light: #4a8c42;
    --secondary-color: #d4a24c;
    --secondary-dark: #b8862e;
    --accent-color: #e85d04;
    --danger-color: #dc3545;
    --success-color: #28a745;
    
    /* Neutral Colors */
    --white: #ffffff;
    --black: #000000;
    --gray-50: #f8f9fa;
    --gray-100: #f1f3f5;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --section-padding: 100px;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul, ol {
    list-style: none;
}

/* Preloader */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    text-align: center;
}

.loader span {
    font-size: 4rem;
    animation: bounce 1s infinite;
    display: inline-block;
}

.loader p {
    margin-top: 1rem;
    color: var(--gray-600);
    font-size: 0.9rem;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 0;
    z-index: 1000;
    transition: var(--transition-normal);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
    padding: 0.75rem 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    color: var(--white);
    transition: var(--transition-fast);
}

.navbar.scrolled .logo-text {
    color: var(--gray-900);
}

.logo-text .highlight {
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu a {
    color: var(--white);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.navbar.scrolled .nav-menu a {
    color: var(--gray-700);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition-fast);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 0.5rem;
}

.lang-btn {
    padding: 0.35rem 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.5);
    background: transparent;
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.navbar.scrolled .lang-btn {
    border-color: var(--gray-300);
    color: var(--gray-700);
}

.lang-btn:hover,
.lang-btn.active {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--white);
}

/* Nav Toggle (Mobile) */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition-fast);
}

.navbar.scrolled .nav-toggle span {
    background: var(--gray-800);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.6) 0%,
        rgba(0, 0, 0, 0.4) 50%,
        rgba(45, 90, 39, 0.7) 100%
    );
}

.hero-content {
    text-align: center;
    color: var(--white);
    max-width: 900px;
    padding: 2rem;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-title span {
    display: block;
}

.hero-title .highlight {
    color: var(--secondary-color);
    font-size: 4rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    font-size: 1.5rem;
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition-normal);
}

.btn-primary {
    background: var(--secondary-color);
    color: var(--white);
    border-color: var(--secondary-color);
}

.btn-primary:hover {
    background: var(--secondary-dark);
    border-color: var(--secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--primary-color);
}

.btn-block {
    width: 100%;
}

.btn-zalo {
    background: #0068ff;
    color: var(--white);
}

.btn-zalo:hover {
    background: #0054cc;
}

.btn-phone {
    background: var(--success-color);
    color: var(--white);
}

.btn-phone:hover {
    background: #218838;
}

/* Sections */
.section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--gray-100);
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.section-badge.danger {
    background: #fef2f2;
    color: var(--danger-color);
}

.section-badge.success {
    background: #f0fdf4;
    color: var(--success-color);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Story Steps */
.story-step {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
    position: relative;
}

.story-step::before {
    content: '';
    position: absolute;
    left: 39px;
    top: 80px;
    bottom: -60px;
    width: 2px;
    background: var(--gray-200);
}

.story-step:last-child::before {
    display: none;
}

.step-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.step-number.pain {
    background: linear-gradient(135deg, var(--danger-color), #ff6b6b);
}

.step-number.insight {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.step-number.success {
    background: linear-gradient(135deg, var(--success-color), #34d399);
}

.step-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.story-step.reverse .step-content {
    direction: rtl;
}

.story-step.reverse .step-content > * {
    direction: ltr;
}

.story-step.final .step-content {
    grid-template-columns: 1fr;
}

.step-text h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.step-text p {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.step-text strong {
    color: var(--primary-color);
}

.step-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.step-image img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.step-image:hover img {
    transform: scale(1.05);
}

/* Pain Section */
.pain-section {
    background: linear-gradient(180deg, #fef2f2 0%, var(--white) 100%);
}

.pain-highlight {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--danger-color);
}

.pain-highlight blockquote {
    font-style: italic;
    color: var(--gray-700);
    margin-top: 1rem;
    padding-left: 1rem;
    border-left: 2px solid var(--gray-300);
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.pain-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    transition: var(--transition-normal);
}

.pain-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.pain-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.pain-card h4 {
    font-size: 1.125rem;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.pain-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
}

/* Turning Point Quote */
.turning-point {
    text-align: center;
    padding: 3rem;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-top: 4rem;
    position: relative;
}

.quote-mark {
    font-size: 6rem;
    color: var(--danger-color);
    opacity: 0.2;
    position: absolute;
    top: -20px;
    left: 30px;
    font-family: Georgia, serif;
}

.turning-point blockquote {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--gray-800);
    max-width: 800px;
    margin: 0 auto;
}

.turning-point cite {
    display: block;
    margin-top: 1.5rem;
    color: var(--gray-600);
    font-style: normal;
}

/* Insight Section */
.insight-section {
    background: linear-gradient(180deg, var(--white) 0%, #f0fdf4 100%);
}

.insight-box {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 2px solid var(--success-color);
}

.insight-list {
    margin-top: 1.5rem;
}

.insight-list li {
    padding: 1rem;
    margin-bottom: 0.75rem;
    background: #f0fdf4;
    border-radius: var(--radius-md);
    color: var(--gray-700);
}

.insight-list strong {
    color: var(--success-color);
}

/* Solution Section */
.solution-section {
    background: var(--gray-50);
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.solution-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.card-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.solution-card:hover .card-image img {
    transform: scale(1.1);
}

.card-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-color);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50px;
}

.card-content {
    padding: 2rem;
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.card-subtitle {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

.card-features {
    margin-bottom: 1.5rem;
}

.card-features li {
    padding: 0.5rem 0;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-features i {
    color: var(--success-color);
}

.card-price {
    text-align: center;
    padding: 1rem;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
}

.price-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.price-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Result Showcase */
.result-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 5rem;
    padding: 3rem;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    align-items: center;
}

.result-content h3 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--success-color);
    margin-bottom: 1rem;
}

.result-content p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

.result-content blockquote {
    font-style: italic;
    color: var(--gray-700);
    padding: 1rem;
    background: #f0fdf4;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--success-color);
}

.result-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.result-images img {
    border-radius: var(--radius-lg);
    height: 200px;
    width: 100%;
    object-fit: cover;
}

/* Gallery Section */
.gallery-section {
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 1;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: var(--white);
    font-size: 0.875rem;
    transform: translateY(100%);
    transition: var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

/* Social Share */
.social-share {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.social-share p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

.share-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--white);
    transition: var(--transition-normal);
}

.share-btn.pinterest {
    background: #e60023;
}

.share-btn.pinterest:hover {
    background: #c7001e;
}

.share-btn.facebook {
    background: #1877f2;
}

.share-btn.facebook:hover {
    background: #166fe5;
}

.share-btn.twitter {
    background: #1da1f2;
}

.share-btn.twitter:hover {
    background: #1a91da;
}

/* Benefits Section */
.benefits-section {
    background: var(--primary-color);
    color: var(--white);
}

.benefits-section .section-badge {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.benefits-section .section-title {
    color: var(--white);
}

.benefits-section .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.benefit-card {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.benefit-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.benefit-card p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Contact Section */
.contact-section {
    background: var(--gray-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.contact-details h4 {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 0.25rem;
}

.contact-details p,
.contact-details a {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
}

.contact-details a:hover {
    color: var(--primary-color);
}

.quick-contact {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.quick-contact .btn {
    flex: 1;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(45, 90, 39, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Payment Section */
.payment-section {
    background: var(--white);
    padding: 60px 0;
}

.payment-methods {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.payment-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 2rem;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    color: var(--gray-700);
}

.payment-card i {
    font-size: 2rem;
    color: var(--primary-color);
}

.bank-info {
    text-align: center;
    padding: 2rem;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    max-width: 500px;
    margin: 0 auto;
}

.bank-info h4 {
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.bank-info p {
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--gray-400);
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.footer-social a:hover {
    background: var(--secondary-color);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--gray-400);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--secondary-color);
}

.footer-contact p {
    color: var(--gray-400);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-contact i {
    color: var(--secondary-color);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--gray-800);
    text-align: center;
    color: var(--gray-500);
    font-size: 0.875rem;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* Floating Contact */
.floating-contact {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 999;
}

.float-btn {
    width: 55px;
    height: 55px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
}

.float-btn.zalo {
    background: #0068ff;
}

.float-btn.phone {
    background: var(--success-color);
}

.float-btn:hover {
    transform: scale(1.1);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .solution-grid,
    .pain-grid,
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }
    
    .nav-menu,
    .lang-switcher {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 1rem;
        flex-direction: column;
        gap: 0;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active,
    .lang-switcher.mobile-active {
        display: flex;
    }
    
    .nav-menu a {
        color: var(--gray-800);
        padding: 1rem;
        border-bottom: 1px solid var(--gray-100);
    }
    
    .lang-switcher {
        top: calc(100% + 260px);
        flex-direction: row;
        justify-content: center;
    }
    
    .lang-btn {
        color: var(--gray-700);
        border-color: var(--gray-300);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-title .highlight {
        font-size: 2.75rem;
    }
    
    .hero-stats {
        gap: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .story-step {
        grid-template-columns: 1fr;
    }
    
    .story-step::before {
        display: none;
    }
    
    .step-number {
        width: 60px;
        height: 60px;
        font-size: 1.25rem;
    }
    
    .step-content {
        grid-template-columns: 1fr;
    }
    
    .story-step.reverse .step-content {
        direction: ltr;
    }
    
    .step-image img {
        height: 250px;
    }
    
    .pain-grid,
    .solution-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .result-showcase {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-contact p {
        justify-content: center;
    }
    
    .floating-contact {
        bottom: 20px;
        right: 20px;
    }
    
    .back-to-top {
        bottom: 90px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-title .highlight {
        font-size: 2.25rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .payment-methods {
        gap: 1rem;
    }
    
    .payment-card {
        padding: 1rem;
    }
    
    .quick-contact {
        flex-direction: column;
    }
}

/* Animation Classes */
[data-aos] {
    transition-property: transform, opacity;
}

/* ========================================
   IP NỖI ĐAU - New Sections Styles
   ======================================== */

/* Hero Positioning - IP Nỗi Đau Style */
.hero-positioning {
    margin-bottom: 2rem;
    text-align: center;
}

.positioning-line {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    opacity: 0.95;
}

.positioning-line strong {
    color: var(--secondary-color);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1.5rem;
}

.hero-title span {
    display: block;
}

.hero-title .highlight {
    color: var(--secondary-color);
    font-size: 2.75rem;
    margin-top: 0.5rem;
}

/* Checklist Section */
.checklist-section {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
    padding: 80px 0;
}

.checklist-box {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--gray-100);
}

.checklist-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--gray-900);
    margin-bottom: 2rem;
    text-align: center;
}

.checklist-items {
    margin-bottom: 2rem;
}

.checklist-items li {
    padding: 1rem;
    margin-bottom: 0.75rem;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.05rem;
    color: var(--gray-700);
    transition: var(--transition-fast);
}

.checklist-items li:hover {
    background: #fef2f2;
    border-left: 4px solid var(--danger-color);
}

.checklist-items li i {
    color: var(--danger-color);
    font-size: 1.25rem;
}

/* Checklist Self-Doubt - Câu tự ti chạm sâu */
.checklist-self-doubt {
    text-align: center;
    margin: 1.5rem 0;
    padding: 1rem 2rem;
    font-size: 1.15rem;
    color: var(--gray-700);
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--secondary-color);
}

.checklist-self-doubt em {
    display: block;
    color: var(--gray-800);
    font-style: italic;
}

.checklist-note {
    text-align: center;
    padding: 1.5rem;
    background: #f0fdf4;
    border-radius: var(--radius-lg);
    border: 2px solid var(--success-color);
}

.checklist-note p {
    margin-bottom: 0.5rem;
    color: var(--gray-800);
}

.checklist-note p:last-child {
    margin-bottom: 0;
    font-style: italic;
    color: var(--gray-600);
}

/* Deep Pain Section */
.deep-pain-section {
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    padding: 100px 0;
    color: var(--white);
}

.deep-pain-content {
    max-width: 800px;
    margin: 0 auto 4rem;
    text-align: center;
    position: relative;
}

.pain-quote-mark {
    font-size: 8rem;
    color: var(--danger-color);
    opacity: 0.3;
    position: absolute;
    top: -40px;
    left: -20px;
    font-family: Georgia, serif;
}

.deep-pain-quote {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-style: italic;
    line-height: 1.6;
    color: var(--white);
}

.deep-pain-quote strong {
    color: var(--secondary-color);
}

.physical-pain {
    max-width: 700px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.05);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.physical-pain h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.physical-pain-content p {
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.physical-pain-content strong {
    color: var(--secondary-color);
}

.physical-pain-content em {
    display: block;
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(220, 53, 69, 0.2);
    border-radius: var(--radius-md);
    text-align: center;
}

/* Self-Check Table Section */
.selfcheck-section {
    background: var(--gray-50);
    padding: 80px 0;
}

.selfcheck-table {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.selfcheck-column {
    padding: 2rem;
    border-radius: var(--radius-xl);
}

.selfcheck-column.wrong {
    background: #fef2f2;
    border: 2px solid #fecaca;
}

.selfcheck-column.right {
    background: #f0fdf4;
    border: 2px solid #bbf7d0;
}

.selfcheck-column h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.selfcheck-column ul li {
    padding: 1rem;
    margin-bottom: 0.75rem;
    background: var(--white);
    border-radius: var(--radius-md);
    font-size: 1rem;
}

.selfcheck-column.wrong ul li {
    border-left: 4px solid var(--danger-color);
}

.selfcheck-column.right ul li {
    border-left: 4px solid var(--success-color);
}

/* How To Section */
.howto-section {
    background: var(--white);
}

.howto-block {
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 3rem;
    border: 1px solid var(--gray-200);
}

.howto-header {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 2rem;
    background: var(--white);
}

.howto-image {
    height: 300px;
    overflow: hidden;
}

.howto-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.howto-intro {
    padding: 2rem 2rem 2rem 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.howto-intro h3 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.howto-tagline {
    font-size: 1.1rem;
    color: var(--gray-600);
    font-style: italic;
    margin-bottom: 1rem;
}

.howto-intro > p:last-child {
    color: var(--gray-700);
    line-height: 1.7;
}

.howto-details {
    padding: 2.5rem;
}

.howto-details h4 {
    font-size: 1.25rem;
    color: var(--gray-900);
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.howto-details h4:first-child {
    margin-top: 0;
}

.materials-list {
    display: grid;
    gap: 0.75rem;
}

.materials-list li {
    padding: 0.75rem 1rem;
    background: var(--white);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
    color: var(--gray-700);
}

.steps-list {
    counter-reset: step;
}

.steps-list li {
    padding: 1rem 1.25rem;
    background: var(--white);
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    color: var(--gray-700);
    line-height: 1.6;
}

.steps-list li strong {
    color: var(--primary-color);
}

.howto-note {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: #fef3c7;
    border-radius: var(--radius-md);
    border-left: 4px solid #f59e0b;
    color: var(--gray-800);
}

.howto-note strong {
    color: #b45309;
}

/* Diary Section */
.diary-section {
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
    padding: 80px 0;
}

.diary-entries {
    max-width: 700px;
    margin: 0 auto;
}

.diary-entry {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.diary-date {
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.diary-entry p {
    color: var(--gray-700);
    line-height: 1.6;
}

/* Gratitude Section */
.gratitude-section {
    background: linear-gradient(180deg, #f0fdf4 0%, #dcfce7 100%);
    padding: 100px 0;
}

.gratitude-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.gratitude-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.gratitude-title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    color: var(--gray-900);
    margin-bottom: 2rem;
}

.gratitude-message {
    font-size: 1.1rem;
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 3rem;
}

.gratitude-message strong {
    color: var(--primary-color);
}

.gratitude-tiers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.gratitude-tier {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.gratitude-tier:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.gratitude-tier.featured {
    border: 3px solid var(--primary-color);
    transform: scale(1.05);
}

.gratitude-tier.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.tier-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.tier-amount span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--gray-500);
}

.tier-label {
    font-size: 0.95rem;
    color: var(--gray-600);
    font-style: italic;
}

.gratitude-note {
    font-size: 0.95rem;
    color: var(--gray-500);
    font-style: italic;
    margin-bottom: 2rem;
}

.gratitude-payment {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    display: inline-block;
    text-align: left;
}

.gratitude-payment p {
    margin-bottom: 0.5rem;
    color: var(--gray-700);
    font-size: 0.95rem;
}

/* Share Section */
.share-section {
    background: var(--primary-color);
    padding: 80px 0;
    color: var(--white);
}

.share-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.share-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 2rem;
}

.share-message {
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

.share-message strong {
    color: var(--secondary-color);
}

.share-message em {
    display: block;
    margin-top: 1rem;
    opacity: 0.85;
}

.share-buttons-large {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.share-btn-lg {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    color: var(--white);
    transition: var(--transition-normal);
}

.share-btn-lg.facebook {
    background: #1877f2;
}

.share-btn-lg.zalo {
    background: #0068ff;
}

.share-btn-lg.copy {
    background: var(--gray-700);
}

.share-btn-lg:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Products Section */
.products-section {
    background: var(--gray-50);
    padding: 80px 0;
}

.products-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

/* Products Defense Note - Câu chặn phòng thủ */
.products-defense-note {
    margin-bottom: 2rem;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    border-radius: var(--radius-lg);
    border: 2px solid #0ea5e9;
    font-size: 1.15rem;
    color: var(--gray-700);
}

.products-defense-note em {
    font-style: italic;
    line-height: 1.8;
}

.products-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.products-subtitle {
    color: var(--gray-600);
    font-size: 1.1rem;
    line-height: 1.7;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    height: 200px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-content {
    padding: 1.5rem;
    text-align: center;
}

.product-content h3 {
    font-size: 1.25rem;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.product-content p {
    color: var(--gray-600);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.btn-outline-dark {
    background: transparent;
    border: 2px solid var(--gray-800);
    color: var(--gray-800);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition-fast);
}

.btn-outline-dark:hover {
    background: var(--gray-800);
    color: var(--white);
}

/* Closing Section */
.closing-section {
    background: linear-gradient(180deg, var(--gray-900) 0%, #1a1a2e 100%);
    padding: 100px 0;
    text-align: center;
}

.closing-content {
    max-width: 800px;
    margin: 0 auto;
}

.closing-quote {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-style: italic;
    color: var(--white);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.closing-note {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.15rem;
    line-height: 1.8;
}

.closing-note strong {
    color: var(--secondary-color);
}

/* Disclaimer Section */
.disclaimer-section {
    background: var(--gray-100);
    padding: 30px 0;
}

.disclaimer-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.7;
}

.disclaimer-content strong {
    color: var(--gray-700);
}

/* ========================================
   RESPONSIVE - New Sections
   ======================================== */

@media (max-width: 1024px) {
    .selfcheck-table,
    .gratitude-tiers,
    .products-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .gratitude-tier.featured {
        transform: none;
    }
    
    .gratitude-tier.featured:hover {
        transform: translateY(-5px);
    }
    
    .howto-header {
        grid-template-columns: 1fr;
    }
    
    .howto-image {
        height: 250px;
    }
    
    .howto-intro {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-positioning {
        padding: 0 1rem;
    }
    
    .positioning-line {
        font-size: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-title .highlight {
        font-size: 2.25rem;
    }
    
    .checklist-box {
        padding: 2rem;
    }
    
    .deep-pain-quote {
        font-size: 1.35rem;
    }
    
    .physical-pain {
        padding: 1.5rem;
    }
    
    .share-buttons-large {
        flex-direction: column;
    }
    
    .share-btn-lg {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .checklist-items li {
        font-size: 0.95rem;
        padding: 0.75rem;
    }
    
    .howto-details {
        padding: 1.5rem;
    }
    
    .gratitude-tiers {
        gap: 1rem;
    }
    
    .gratitude-tier {
        padding: 1.5rem;
    }
    
    .tier-amount {
        font-size: 1.5rem;
    }
}

/* ========================================
   IP GIẢI ĐAU - New Hero & Section Styles
   ======================================== */

/* Hero IP Giải Đau */
.hero-ip-giai-dau {
    text-align: center;
}

.hero-ip-giai-dau .hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.ip-positioning {
    margin-bottom: 2.5rem;
}

.ip-positioning .ip-line-1,
.ip-positioning .ip-line-2,
.ip-positioning .ip-line-3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
}

.hero-title-ip {
    margin-bottom: 2rem;
}

.hero-title-ip .title-main {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.75rem;
    font-weight: 500;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.hero-title-ip .title-main em {
    color: var(--secondary-color);
    font-style: normal;
}

.hero-title-ip .title-sub {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
}

.hero-title-ip .title-sub strong {
    color: var(--secondary-color);
}

.hero-note {
    margin-bottom: 2rem;
    padding: 1.5rem 2rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-lg);
    display: inline-block;
}

.hero-note p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
}

.hero-note strong {
    color: var(--secondary-color);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.7);
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.btn-ghost:hover {
    background: var(--white);
    color: var(--gray-900);
    border-color: var(--white);
}

/* Pain Story Box - Deep Pain Enhancement */
.pain-story-box {
    max-width: 700px;
    margin: 3rem auto 0;
    background: rgba(255, 255, 255, 0.05);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.pain-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.pain-narrative {
    font-size: 1.1rem;
    line-height: 1.9;
}

.pain-narrative p {
    margin-bottom: 0.5rem;
}

.pain-narrative strong {
    color: var(--secondary-color);
}

.pain-realization {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: rgba(220, 53, 69, 0.2);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 1.15rem;
}

.pain-deeper {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 1.1rem;
    line-height: 1.9;
}

.pain-deeper p {
    margin-bottom: 0.5rem;
}

.pain-deeper strong {
    color: var(--secondary-color);
}

.pain-deeper em {
    display: block;
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
}

/* Diary Steps - Story Section */
.diary-step {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
    align-items: start;
}

.step-marker {
    text-align: center;
}

.step-marker .step-number {
    display: block;
    width: 70px;
    height: 70px;
    line-height: 70px;
    background: var(--primary-color);
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin: 0 auto 0.5rem;
}

.step-marker.danger .step-number {
    background: var(--danger-color);
}

.step-marker.success .step-number {
    background: var(--success-color);
}

.step-marker .step-label {
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 500;
}

.diary-content {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2.5rem;
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    align-items: center;
}

.diary-step.reverse .diary-content {
    grid-template-columns: 350px 1fr;
}

.diary-step.reverse .diary-content .diary-text {
    order: 2;
}

.diary-step.reverse .diary-content .diary-image {
    order: 1;
}

.diary-text h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.diary-text p {
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.diary-result {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin: 1rem 0;
}

.diary-result.bad {
    background: #fef2f2;
    border-left: 4px solid var(--danger-color);
}

.disaster-quote {
    background: #fef2f2;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 2px solid #fecaca;
}

.disaster-quote p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--gray-800);
    margin: 0;
}

.diary-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 280px;
}

.diary-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Moment of Clarity - Khoảnh khắc thức tỉnh */
.moment-of-clarity {
    margin-bottom: 2rem;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--secondary-color);
}

.moment-of-clarity p {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    color: var(--gray-800);
    line-height: 1.7;
}

.moment-of-clarity p:last-child {
    margin-bottom: 0;
}

.moment-of-clarity strong {
    color: var(--primary-dark);
}

.insight-list-new {
    margin-top: 1.5rem;
}

.insight-list-new li {
    padding: 1rem 1.25rem;
    background: #f0fdf4;
    border-left: 4px solid var(--success-color);
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    font-size: 1.05rem;
    color: var(--gray-700);
}

.insight-list-new li strong {
    color: var(--primary-dark);
}

.result-quote {
    margin-top: 1rem;
    padding: 1.25rem;
    background: #f0fdf4;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--success-color);
    font-style: italic;
}

.result-quote p {
    color: var(--gray-700);
    margin: 0;
}

/* Turning Point Box */
.turning-point-box {
    max-width: 800px;
    margin: 4rem auto;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 3rem;
    border-radius: var(--radius-xl);
    text-align: center;
    position: relative;
}

.turning-point-box .quote-icon {
    font-size: 6rem;
    color: var(--danger-color);
    opacity: 0.3;
    position: absolute;
    top: 10px;
    left: 30px;
    font-family: Georgia, serif;
}

.turning-point-box blockquote {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-style: italic;
    color: var(--white);
    line-height: 1.7;
    margin-bottom: 1rem;
    position: relative;
}

.turning-point-box cite {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Three NO Section - 3 Secrets */
.three-no-section {
    background: var(--white);
    padding: 100px 0;
}

.success-badge {
    background: var(--success-color) !important;
    color: var(--white) !important;
}

.diary-badge {
    background: var(--gray-800) !important;
    color: var(--white) !important;
}

.secret-block {
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 3rem;
    border: 2px solid var(--gray-200);
}

.secret-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
}

.secret-number {
    width: 60px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    background: var(--white);
    color: var(--primary-color);
    font-size: 1.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.secret-title-box h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

.secret-tagline {
    font-size: 1rem;
    opacity: 0.9;
}

.secret-content {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 2.5rem;
    padding: 2.5rem;
    align-items: start;
}

.secret-content.reverse {
    grid-template-columns: 1fr 350px;
}

.secret-content.reverse .secret-image {
    order: 2;
}

.secret-content.reverse .secret-text {
    order: 1;
}

.secret-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 280px;
}

.secret-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.secret-intro {
    font-size: 1.1rem;
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.secret-intro strong {
    color: var(--primary-color);
}

.secret-intro em {
    color: var(--gray-800);
}

.secret-principle {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    margin-bottom: 1.5rem;
}

.secret-principle h4 {
    font-size: 1.1rem;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.secret-principle p {
    color: var(--gray-700);
    line-height: 1.7;
    margin: 0;
}

.secret-principle strong {
    color: var(--primary-dark);
}

.secret-details {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
}

.secret-details.hidden {
    display: none;
}

.secret-details h4 {
    font-size: 1.1rem;
    color: var(--gray-900);
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

.secret-details h4:first-child {
    margin-top: 0;
}

.secret-details ul,
.secret-details ol {
    display: grid;
    gap: 0.5rem;
}

.secret-details li {
    padding: 0.75rem 1rem;
    background: var(--white);
    border-radius: var(--radius-md);
    color: var(--gray-700);
    line-height: 1.5;
}

.secret-details ol li {
    border-left: 4px solid var(--primary-color);
}

.secret-details li strong {
    color: var(--primary-color);
}

.secret-note {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: #fef3c7;
    border-radius: var(--radius-md);
    border-left: 4px solid #f59e0b;
    color: var(--gray-800);
    line-height: 1.6;
}

.secret-note strong {
    color: #b45309;
}

.btn-reveal {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.75rem;
    background: var(--primary-color);
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    margin-top: 1rem;
}

.btn-reveal:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* AVICORE Block Special Styles */
.secret-block.avicore-block .secret-header {
    background: linear-gradient(90deg, #1e40af, #3b82f6);
}

.layer-list {
    display: grid;
    gap: 0.5rem;
    margin-top: 1rem;
}

.layer-list li {
    padding: 0.5rem 0.75rem;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--gray-700);
    border-left: 3px solid var(--primary-color);
}

.layer-list li strong {
    color: var(--primary-dark);
}

.stats-mini {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}

.stat-mini {
    padding: 0.75rem 1rem;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    text-align: center;
    flex: 1;
    min-width: 100px;
}

.stat-mini span {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.secret-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.btn-detail {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.btn-detail:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
}

/* Diary Updates Grid */
.diary-updates-section {
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
    padding: 80px 0;
}

.diary-entries-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.diary-entry-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.diary-entry-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.diary-entry-card .diary-date {
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.diary-entry-card p {
    color: var(--gray-700);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* ========================================
   RESPONSIVE - IP Giải Đau Sections
   ======================================== */

@media (max-width: 1024px) {
    .diary-step {
        grid-template-columns: 1fr;
    }
    
    .step-marker {
        display: flex;
        align-items: center;
        gap: 1rem;
        margin-bottom: 1rem;
    }
    
    .step-marker .step-number {
        width: 50px;
        height: 50px;
        line-height: 50px;
        font-size: 1.25rem;
        margin: 0;
    }
    
    .diary-content {
        grid-template-columns: 1fr;
    }
    
    .diary-step.reverse .diary-content {
        grid-template-columns: 1fr;
    }
    
    .diary-step.reverse .diary-content .diary-text,
    .diary-step.reverse .diary-content .diary-image {
        order: unset;
    }
    
    .diary-image {
        height: 250px;
    }
    
    .secret-content {
        grid-template-columns: 1fr;
    }
    
    .secret-content.reverse {
        grid-template-columns: 1fr;
    }
    
    .secret-content.reverse .secret-image,
    .secret-content.reverse .secret-text {
        order: unset;
    }
    
    .secret-image {
        height: 220px;
    }
    
    .diary-entries-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .ip-positioning .ip-line-1,
    .ip-positioning .ip-line-2,
    .ip-positioning .ip-line-3 {
        font-size: 1.1rem;
    }
    
    .hero-title-ip .title-main {
        font-size: 2rem;
    }
    
    .hero-title-ip .title-sub {
        font-size: 1.6rem;
    }
    
    .hero-note {
        padding: 1rem 1.5rem;
    }
    
    .hero-note p {
        font-size: 1rem;
    }
    
    .pain-story-box {
        padding: 1.5rem;
    }
    
    .pain-narrative {
        font-size: 1rem;
    }
    
    .diary-content {
        padding: 1.5rem;
    }
    
    .diary-text h3 {
        font-size: 1.4rem;
    }
    
    .turning-point-box {
        padding: 2rem;
    }
    
    .turning-point-box blockquote {
        font-size: 1.15rem;
    }
    
    .secret-header {
        flex-direction: column;
        text-align: center;
    }
    
    .secret-number {
        width: 50px;
        height: 50px;
        line-height: 50px;
        font-size: 1.5rem;
    }
    
    .secret-title-box h3 {
        font-size: 1.4rem;
    }
    
    .secret-content {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .ip-positioning .ip-line-1,
    .ip-positioning .ip-line-2,
    .ip-positioning .ip-line-3 {
        font-size: 1rem;
    }
    
    .hero-title-ip .title-main {
        font-size: 1.6rem;
    }
    
    .hero-title-ip .title-sub {
        font-size: 1.3rem;
    }
    
    .btn-ghost {
        padding: 0.875rem 1.75rem;
        font-size: 1rem;
    }
    
    .pain-deeper {
        padding-top: 1.5rem;
        margin-top: 1.5rem;
    }
    
    .diary-image {
        height: 200px;
    }
    
    .secret-image {
        height: 180px;
    }
    
    .btn-reveal {
        width: 100%;
        justify-content: center;
    }
}

/* =====================================================
   NEW SECTIONS - AI Citation Level 5/5 Upgrade
====================================================== */

/* ECOSYSTEM LINK SECTION - Liên hoàn cước */
.ecosystem-link-section {
    background: linear-gradient(135deg, #e8f5e8 0%, #f0f7f0 100%);
    padding: 60px 0;
}

.ecosystem-link-box {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border-left: 5px solid var(--success-color);
    position: relative;
}

.ecosystem-icon {
    position: absolute;
    top: -25px;
    left: 30px;
    font-size: 3rem;
    background: white;
    padding: 0 1rem;
}

.ecosystem-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    margin-top: 0;
}

.ecosystem-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: 1rem;
}

.ecosystem-cta {
    background: #f0fdf4;
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    margin: 1.5rem 0;
}

.ecosystem-link {
    color: var(--success-color);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
}

.ecosystem-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.ecosystem-link i {
    margin-right: 0.5rem;
}

.ecosystem-note {
    font-size: 1.05rem;
    color: var(--gray-600);
}

.ecosystem-badge {
    margin-top: 2rem;
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    text-align: center;
    border-radius: var(--radius-lg);
    font-weight: 600;
}

/* FAQ VISUAL SECTION */
.faq-visual-section {
    background: #f8f9fa;
    padding: 80px 0;
}

.faq-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.faq-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.faq-question {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #e8f5e8 0%, #f0f7f0 100%);
    border-bottom: 2px solid var(--success-color);
}

.faq-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.faq-question h4 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--gray-800);
    font-weight: 600;
    line-height: 1.4;
}

.faq-answer {
    padding: 1.5rem;
}

.faq-answer p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-700);
    margin-bottom: 0.75rem;
}

.faq-answer p:last-of-type {
    margin-bottom: 1rem;
}

.faq-link {
    color: var(--success-color);
    font-weight: 600;
    text-decoration: none;
}

.faq-link:hover {
    text-decoration: underline;
}

.faq-answer cite {
    display: block;
    font-size: 0.9rem;
    color: var(--gray-500);
    font-style: italic;
    text-align: right;
}

.faq-more {
    text-align: center;
    margin-top: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
}

.faq-more p {
    margin: 0;
    color: var(--gray-600);
}

.faq-more a {
    color: var(--primary-color);
    font-weight: 600;
}

/* GLOBAL DECLARATION SECTION - Tuyên ngôn Global */
.global-declaration-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    padding: 60px 0;
}

.global-declaration-box {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    color: white;
}

.declaration-badge {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.declaration-quote {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    line-height: 1.6;
    margin: 0 0 2rem 0;
    padding: 0;
    border: none;
}

.declaration-quote p {
    margin: 0;
}

.declaration-quote strong {
    color: var(--secondary-color);
}

.declaration-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1rem;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 0.25rem;
}

.declaration-author {
    font-style: italic;
    opacity: 0.9;
    font-size: 1rem;
}

/* Responsive for new sections */
@media (max-width: 768px) {
    .ecosystem-link-box {
        padding: 2rem 1.5rem;
    }
    
    .ecosystem-icon {
        position: static;
        margin-bottom: 1rem;
    }
    
    .faq-cards {
        grid-template-columns: 1fr;
    }
    
    .declaration-stats {
        gap: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .declaration-quote {
        font-size: 1.2rem;
    }
}

@media (max-width: 576px) {
    .ecosystem-title {
        font-size: 1.25rem;
    }
    
    .ecosystem-content p {
        font-size: 1rem;
    }
    
    .faq-question h4 {
        font-size: 1rem;
    }
    
    .stat-item {
        width: 45%;
    }
}

/* =====================================================
   IP EXPERIMENT ECOSYSTEM SECTIONS
====================================================== */

/* ECOSYSTEM CONTEXT SECTION */
.ecosystem-context-section {
    background: linear-gradient(135deg, #f0f4f8 0%, #e8f0f7 100%);
    padding: 60px 0;
}

.ecosystem-context-box {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.eco-badge {
    display: inline-block;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.eco-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
}

.eco-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--gray-700);
    margin-bottom: 1rem;
}

.eco-hub {
    background: #f0fdf4;
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    margin: 1.5rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.hub-label {
    font-weight: 600;
    color: var(--gray-700);
}

.hub-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
}

.hub-link:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.eco-note {
    font-size: 0.95rem;
    color: var(--gray-600);
    font-style: italic;
    margin-top: 1rem;
}

/* RESEARCH STATUS SECTION */
.research-status-section {
    background: #fff;
    padding: 80px 0;
}

.research-status-box {
    max-width: 1000px;
    margin: 0 auto;
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
}

.research-badge {
    display: inline-block;
    background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.research-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
}

.research-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.meta-label {
    font-size: 0.85rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-value {
    font-weight: 600;
    color: var(--gray-800);
}

.status-active {
    color: var(--success-color);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.research-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
}

.research-card h4 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.research-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.research-card li {
    padding: 0.5rem 0;
    color: var(--gray-700);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--gray-100);
}

.research-card li:last-child {
    border-bottom: none;
}

.research-update {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--gray-500);
}

/* FIELD LOG SECTION */
.field-log-section {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    padding: 80px 0;
}

.field-log-box {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.field-badge {
    display: inline-block;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.field-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 2rem;
}

.field-entries {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.field-entry {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 1.5rem;
    padding: 1.25rem;
    background: #fffbeb;
    border-radius: var(--radius-lg);
    border-left: 4px solid #f59e0b;
}

.entry-date {
    font-family: monospace;
    font-size: 0.9rem;
    font-weight: 700;
    color: #92400e;
    background: #fef3c7;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    height: fit-content;
}

.entry-content .observation {
    font-size: 1rem;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.entry-content .measured-data {
    font-size: 0.9rem;
    color: var(--gray-600);
    font-style: italic;
}

/* CORE PRINCIPLES SECTION */
.core-principles-section {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    padding: 80px 0;
}

.principles-box {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.principles-badge {
    display: inline-block;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.principles-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 2rem;
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.principle-card {
    background: white;
    padding: 2rem 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
}

.principle-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.principle-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.principle-card h4 {
    font-size: 1.1rem;
    color: var(--gray-800);
    margin-bottom: 0.75rem;
}

.principle-card p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.6;
}

.principles-philosophy {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.principles-philosophy blockquote {
    margin: 0;
    padding: 0;
    border: none;
}

.principles-philosophy p {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--primary-color);
    font-style: italic;
    margin-bottom: 0.5rem;
}

.principles-philosophy cite {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* SCIENTIFIC LIMITATIONS SECTION */
.scientific-limitations-section {
    background: #fff;
    padding: 80px 0;
}

.sci-limits-box {
    max-width: 900px;
    margin: 0 auto;
    background: #fef2f2;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 2px solid #fecaca;
}

.sci-badge {
    display: inline-block;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.sci-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
}

.sci-intro {
    font-size: 1.1rem;
    color: var(--gray-700);
    margin-bottom: 1.5rem;
}

.sci-variables {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.sci-variables h4 {
    font-size: 1rem;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.sci-variables ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sci-variables li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
}

.sci-variables li:last-child {
    border-bottom: none;
}

.sci-variables li i {
    color: var(--accent-color);
    width: 20px;
}

.sci-note {
    background: #fee2e2;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    border-left: 4px solid #ef4444;
}

.sci-note p {
    margin: 0.5rem 0;
    color: #991b1b;
    font-size: 0.95rem;
}

/* RELATED PROJECTS SECTION */
.related-projects-section {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 80px 0;
}

.related-box {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.related-badge {
    display: inline-block;
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.related-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 0.75rem;
}

.related-intro {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.related-card {
    background: white;
    padding: 2rem 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.related-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: #0ea5e9;
}

.related-card.hub-card {
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    color: white;
}

.related-card.hub-card h4,
.related-card.hub-card p {
    color: white;
}

.related-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.related-card h4 {
    font-size: 1rem;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.related-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    margin: 0;
}

.related-note {
    font-size: 1rem;
    color: var(--gray-700);
}

/* AI SUMMARY SECTION */
.ai-summary-section {
    background: linear-gradient(135deg, #faf5ff 0%, #f3e8ff 100%);
    padding: 80px 0;
}

/* AI Prose Summary for AI Systems */
.ai-prose-summary {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin: 2rem 0;
    border-left: 4px solid #22c55e;
}

.ai-prose-summary h3 {
    color: #166534;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.ai-prose {
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: 1rem;
    text-align: left;
}

.ai-prose:last-child {
    margin-bottom: 0;
}

.ai-prose a {
    color: #16a34a;
    text-decoration: underline;
}

.ai-sum-box {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.ai-sum-badge {
    display: inline-block;
    background: linear-gradient(135deg, #a855f7 0%, #9333ea 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.ai-sum-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
}

.ai-sum-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--gray-700);
    margin-bottom: 1rem;
}

.ai-sum-key-data {
    background: #faf5ff;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-top: 1.5rem;
}

.ai-sum-key-data h4 {
    font-size: 1rem;
    color: #7c3aed;
    margin-bottom: 1rem;
}

.ai-sum-key-data ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
}

.ai-sum-key-data li {
    padding: 0.5rem;
    font-size: 0.95rem;
    color: var(--gray-700);
}

/* AI Summary Fields */
.ai-sum-field {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: #faf5ff;
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    border-left: 3px solid #a855f7;
}

.ai-sum-field .field-label {
    font-weight: 700;
    color: #7c3aed;
    min-width: 140px;
    flex-shrink: 0;
}

.ai-sum-field .field-value {
    color: var(--gray-700);
    line-height: 1.5;
}

.ai-sum-field .field-link {
    color: #7c3aed;
    text-decoration: none;
}

.ai-sum-field .field-link:hover {
    text-decoration: underline;
}

/* QUICK ANSWER SECTION */
.quick-answer-section {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    padding: 60px 0;
}

.quick-answer-box {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.qa-badge {
    display: inline-block;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.qa-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
}

.qa-content {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.qa-question,
.qa-answer {
    padding: 1.25rem;
    border-radius: var(--radius-lg);
}

.qa-question {
    background: #f0fdf4;
    border-left: 4px solid #10b981;
}

.qa-answer {
    background: #faf5ff;
    border-left: 4px solid #a855f7;
}

.qa-label {
    display: block;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.qa-question .qa-label {
    color: #059669;
}

.qa-answer .qa-label {
    color: #7c3aed;
}

.qa-question p,
.qa-answer p {
    margin: 0;
    font-size: 1.1rem;
    color: var(--gray-800);
    line-height: 1.6;
}

.qa-source {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--radius-md);
}

.qa-source .qa-label {
    margin: 0;
    color: var(--gray-600);
}

.qa-source a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.qa-source a:hover {
    text-decoration: underline;
}

/* Responsive for new sections */
@media (max-width: 576px) {
    .ai-sum-field {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .ai-sum-field .field-label {
        min-width: auto;
    }
}

/* =====================================================
   NEW AI METADATA SECTIONS
====================================================== */

/* AUTHOR SECTION */
.author-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 60px 0;
}

.author-box {
    max-width: 700px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    border-top: 4px solid var(--primary-color);
}

.author-badge {
    display: inline-block;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.author-name {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    color: var(--gray-800);
    margin: 0 0 0.5rem 0;
}

.author-desc {
    color: var(--gray-600);
    font-size: 1.1rem;
    margin: 0 0 1.5rem 0;
    line-height: 1.6;
}

.author-topics {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.author-topics li {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #f0f9ff;
    border-radius: var(--radius-lg);
    color: var(--gray-700);
    font-size: 0.95rem;
}

.author-topics li i {
    color: #3b82f6;
}

.author-ecosystem {
    color: var(--gray-700);
    font-size: 1rem;
    margin: 0 0 1.5rem 0;
}

.author-hub {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 1rem;
    background: #f0f9ff;
    border-radius: var(--radius-lg);
}

.author-hub .hub-label {
    font-weight: 600;
    color: var(--gray-700);
}

.author-hub .hub-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
}

.author-hub .hub-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* EXPERIMENT STATUS SECTION */
.experiment-status-section {
    background: #ecfdf5;
    padding: 40px 0;
}

.exp-status-box {
    max-width: 700px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid #10b981;
}

.exp-badge {
    display: inline-block;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.exp-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.exp-field {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.exp-label {
    font-weight: 700;
    color: var(--gray-700);
    min-width: 100px;
}

.exp-value {
    color: var(--gray-700);
    line-height: 1.5;
}

.exp-value.status-active {
    color: #059669;
    font-weight: 600;
}

/* LAST UPDATED SECTION */
.last-updated-section {
    background: #fef3c7;
    padding: 30px 0;
}

.updated-box {
    max-width: 400px;
    margin: 0 auto;
    background: white;
    padding: 1.5rem 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    border-left: 4px solid #f59e0b;
}

.updated-badge {
    display: inline-block;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.updated-year {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: #92400e;
}

/* CITATION SOURCE SECTION */
.citation-source-section {
    background: #f0f9ff;
    padding: 40px 0;
}

.source-box {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    border-left: 4px solid #0ea5e9;
}

.source-badge {
    display: inline-block;
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    color: white;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.source-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.source-label {
    font-weight: 700;
    color: var(--gray-700);
}

.source-link {
    color: #0284c7;
    font-weight: 600;
    text-decoration: none;
    font-size: 1.1rem;
}

.source-link:hover {
    text-decoration: underline;
}

/* RELATED EXPERIMENTS SECTION */
.related-experiments-section {
    background: #faf5ff;
    padding: 50px 0;
}

.rel-exp-box {
    max-width: 700px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid #a855f7;
}

.rel-badge {
    display: inline-block;
    background: linear-gradient(135deg, #a855f7 0%, #9333ea 100%);
    color: white;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.rel-content {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.rel-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background: #faf5ff;
    border-radius: var(--radius-lg);
}

.rel-title {
    font-weight: 600;
    color: var(--gray-800);
}

.rel-link {
    color: #7c3aed;
    text-decoration: none;
    font-size: 0.95rem;
}

.rel-link:hover {
    text-decoration: underline;
}

/* ECOSYSTEM SIGNAL SECTION */
.ecosystem-signal-section {
    background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
    padding: 50px 0;
}

.eco-signal-box {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    color: white;
}

.eco-signal-badge {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.eco-signal-text {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.eco-signal-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.15);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
}

.eco-signal-link:hover {
    background: rgba(255,255,255,0.25);
}

/* Responsive for new metadata sections */
@media (max-width: 576px) {
    .exp-field {
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .exp-label {
        min-width: auto;
    }
    
    .source-content {
        flex-direction: column;
    }
}

/* =====================================================
   EXPERIMENT LOG SECTION
====================================================== */
.experiment-log-section {
    background: linear-gradient(135deg, #fefce8 0%, #fef9c3 100%);
    padding: 80px 0;
}

.exp-log-box {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.exp-log-badge {
    display: inline-block;
    background: linear-gradient(135deg, #ca8a04 0%, #a16207 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.exp-log-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

/* Experiment Log Description */
.exp-log-description {
    background: linear-gradient(135deg, #fef9c3 0%, #fef08a 100%);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    border-left: 4px solid #ca8a04;
}

.exp-log-description p {
    margin: 0;
    font-size: 1rem;
    color: #713f12;
    line-height: 1.7;
}

.exp-log-entries {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.log-entry {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
    background: #fefce8;
    border-radius: var(--radius-lg);
    border-left: 4px solid #ca8a04;
}

.log-date {
    font-family: monospace;
    font-size: 0.95rem;
    font-weight: 700;
    color: #854d0e;
    background: #fef08a;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    width: fit-content;
}

.log-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.log-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #a16207;
}

.log-content p {
    margin: 0;
    font-size: 1rem;
    color: var(--gray-700);
    line-height: 1.6;
}

.log-measured {
    background: #fef3c7;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: #92400e;
    font-family: 'Consolas', 'Monaco', monospace;
}

.log-source {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--gray-500);
    font-style: italic;
}

/* Context Signal */
.log-context {
    background: rgba(202, 138, 4, 0.1);
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-top: 0.5rem;
}

.context-title {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #854d0e;
    margin-bottom: 0.75rem;
}

.context-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.context-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

.context-label {
    color: var(--gray-500);
    font-weight: 500;
}

.context-value {
    color: #713f12;
    font-weight: 600;
}

/* Experiment Signals */
.exp-log-signals {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    padding-top: 2rem;
    border-top: 2px solid #fef08a;
}

.signal-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: var(--radius-md);
}

.signal-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-500);
}

.signal-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

.signal-value.status-active {
    color: #16a34a;
}

.signal-item.signal-ecosystem {
    grid-column: 1 / -1;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
    color: white;
}

.signal-ecosystem .signal-label {
    color: rgba(255,255,255,0.8);
}

.signal-link {
    color: #60a5fa;
    text-decoration: none;
    font-weight: 600;
}

.signal-link:hover {
    text-decoration: underline;
    color: #93c5fd;
}

/* Responsive */
@media (max-width: 576px) {
    .exp-log-box {
        padding: 1.5rem;
    }
    
    .exp-log-description {
        padding: 1rem;
    }
    
    .log-entry {
        padding: 1rem;
    }
    
    .log-date {
        width: fit-content;
    }
    
    .context-items {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .context-item {
        width: 100%;
    }
    
    .exp-log-signals {
        grid-template-columns: 1fr;
    }
    
    .signal-item.signal-ecosystem {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* =====================================================
   EXPERIMENT TIMELINE SECTION
====================================================== */
.experiment-timeline-section {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    padding: 60px 0;
}

.timeline-box {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.timeline-badge {
    display: inline-block;
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.timeline-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 2rem;
}

.timeline-entries {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
    padding-left: 2rem;
}

.timeline-entries::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, #22c55e, #16a34a);
    border-radius: 3px;
}

.timeline-entry {
    position: relative;
    padding: 1rem 0 1rem 1.5rem;
    border-bottom: 1px solid var(--gray-100);
}

.timeline-entry:last-child {
    border-bottom: none;
}

.timeline-entry::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 1.25rem;
    width: 12px;
    height: 12px;
    background: #22c55e;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 3px #22c55e;
}

.timeline-date {
    font-family: monospace;
    font-size: 0.9rem;
    font-weight: 700;
    color: #16a34a;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    margin: 0;
    font-size: 1rem;
    color: var(--gray-700);
    line-height: 1.5;
}

/* =====================================================
   AI RESEARCH TOPICS SECTION
====================================================== */
.ai-research-topics-section {
    background: #f8fafc;
    padding: 60px 0;
}

.research-topics-box {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid #6366f1;
}

.topics-badge {
    display: inline-block;
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.topics-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
}

.topics-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.topic-item {
    padding: 1.25rem;
    background: #eef2ff;
    border-radius: var(--radius-lg);
}

.topic-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #4338ca;
    margin: 0 0 0.5rem 0;
}

.topic-desc {
    margin: 0;
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* =====================================================
   AI QUESTION BANK SECTION
====================================================== */
.ai-question-bank-section {
    background: linear-gradient(135deg, #fdf4ff 0%, #fae8ff 100%);
    padding: 60px 0;
}

.question-bank-box {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.qb-badge {
    display: inline-block;
    background: linear-gradient(135deg, #d946ef 0%, #c026d3 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.qb-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
}

.qb-questions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.qb-item {
    padding: 1.5rem;
    background: #fdf4ff;
    border-radius: var(--radius-lg);
    border-left: 4px solid #d946ef;
}

.qb-question {
    margin: 0 0 0.75rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-800);
    line-height: 1.5;
}

.qb-answer {
    margin: 0 0 1rem 0;
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.7;
    padding-left: 1rem;
    border-left: 2px solid #e9d5ff;
}

.qb-intro {
    text-align: center;
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

.qb-source {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--gray-500);
}

.qb-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-500);
}

.qb-source a {
    color: #a21caf;
    text-decoration: none;
    font-weight: 600;
}

.qb-source a:hover {
    text-decoration: underline;
}

/* Question Bank Signals */
.qb-signals {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 2px solid #fae8ff;
}

.qb-signal {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: var(--radius-md);
}

.qb-signal-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-500);
}

.qb-signal-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

.qb-signal-value.status-active {
    color: #16a34a;
}

.qb-signal.qb-ecosystem {
    grid-column: 1 / -1;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
    color: white;
}

.qb-ecosystem .qb-signal-label {
    color: rgba(255,255,255,0.8);
}

.qb-ecosystem-link {
    color: #a78bfa;
    text-decoration: none;
    font-weight: 600;
}

.qb-ecosystem-link:hover {
    text-decoration: underline;
    color: #c4b5fd;
}

/* Responsive */
@media (max-width: 576px) {
    .timeline-entries {
        padding-left: 1.5rem;
    }
    
    .timeline-entry::before {
        left: -1.5rem;
    }
    
    .qb-signals {
        grid-template-columns: 1fr;
    }
    
    .qb-signal.qb-ecosystem {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* =====================================================
   IP EXPERIMENT KNOWLEDGE NETWORK SECTION
====================================================== */
.knowledge-network-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 80px 0;
}

.kn-box {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.03);
    padding: 3rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.kn-badge {
    display: inline-block;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.kn-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    color: white;
    margin-bottom: 1.5rem;
}

.kn-intro {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 2rem;
}

/* Knowledge Hub */
.kn-hub {
    background: rgba(59, 130, 246, 0.1);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    border-left: 4px solid #3b82f6;
}

.kn-hub-title {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
    margin: 0 0 0.5rem 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.kn-hub-link {
    font-family: monospace;
    font-size: 1.1rem;
    color: #60a5fa;
    text-decoration: none;
    transition: color 0.2s;
}

.kn-hub-link:hover {
    color: #93c5fd;
    text-decoration: underline;
}

/* Related Sites */
.kn-related {
    margin-bottom: 2rem;
}

.kn-related-title {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
    margin: 0 0 1rem 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.kn-sites {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.kn-site {
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    border-left: 3px solid rgba(255, 255, 255, 0.2);
    transition: all 0.2s;
}

.kn-site:hover {
    background: rgba(255, 255, 255, 0.06);
    border-left-color: #3b82f6;
}

.kn-site a {
    font-family: monospace;
    font-size: 0.95rem;
    color: #60a5fa;
    text-decoration: none;
    display: block;
    margin-bottom: 0.25rem;
}

.kn-site a:hover {
    color: #93c5fd;
}

.kn-site p {
    margin: 0;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.4;
}

.kn-site-current {
    background: rgba(34, 197, 94, 0.1);
    border-left-color: #22c55e;
    position: relative;
}

.kn-current-badge {
    display: inline-block;
    background: #22c55e;
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-top: 0.5rem;
}

/* Signals */
.kn-signals {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.kn-signal {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
}

.kn-signal-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.kn-signal-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
}

.kn-signal-value.status-active {
    color: #22c55e;
}

.kn-signal-ecosystem {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
}

.kn-ecosystem-link {
    font-family: monospace;
    font-size: 0.9rem;
    color: #60a5fa;
    text-decoration: none;
}

.kn-ecosystem-link:hover {
    color: #93c5fd;
    text-decoration: underline;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .kn-box {
        padding: 1.5rem;
    }
    
    .kn-title {
        font-size: 1.4rem;
    }
    
    .kn-intro {
        font-size: 1rem;
    }
    
    .kn-signals {
        flex-direction: column;
    }
    
    .kn-signal {
        width: 100%;
    }
}

/* HOW TO CITE SECTION */
.how-to-cite-section {
    background: #fff;
    padding: 80px 0;
}

.cite-box {
    max-width: 800px;
    margin: 0 auto;
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
}

.cite-badge {
    display: inline-block;
    background: linear-gradient(135deg, #64748b 0%, #475569 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.cite-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
}

.cite-format {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary-color);
}

.cite-author {
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.cite-work {
    font-size: 1.1rem;
    color: var(--gray-700);
    margin-bottom: 0.25rem;
}

.cite-details, .cite-year {
    color: var(--gray-600);
    margin-bottom: 0.25rem;
}

.cite-url a {
    color: var(--primary-color);
    text-decoration: none;
}

.cite-copy {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.cite-copy h4 {
    font-size: 0.9rem;
    color: var(--gray-600);
    margin-bottom: 0.75rem;
}

.cite-copy code {
    display: block;
    background: var(--gray-100);
    padding: 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--gray-700);
    word-break: break-all;
}

.cite-files h4 {
    font-size: 0.9rem;
    color: var(--gray-600);
    margin-bottom: 0.75rem;
}

.cite-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.cite-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-normal);
}

.cite-links a:hover {
    background: var(--primary-dark);
}

/* Footer IP Experiment Link */
.footer-ip-experiment {
    margin: 0.5rem 0;
    font-size: 0.9rem;
}

.footer-ip-experiment a {
    color: var(--secondary-color);
    text-decoration: none;
}

.footer-ip-experiment a:hover {
    text-decoration: underline;
}

/* Responsive for new sections */
@media (max-width: 768px) {
    .ecosystem-context-box,
    .research-status-box,
    .field-log-box,
    .principles-box,
    .sci-limits-box,
    .related-box,
    .ai-sum-box,
    .cite-box {
        padding: 1.5rem;
    }
    
    .field-entry {
        grid-template-columns: 1fr;
    }
    
    .entry-date {
        width: fit-content;
    }
    
    .principles-grid,
    .related-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 576px) {
    .principles-grid,
    .related-grid {
        grid-template-columns: 1fr;
    }
    
    .eco-hub {
        flex-direction: column;
    }
    
    .cite-links {
        flex-direction: column;
    }
    
    .cite-links a {
        justify-content: center;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .floating-contact,
    .back-to-top,
    .hero-bg,
    .social-share,
    .share-section,
    .gratitude-section,
    .btn-reveal {
        display: none !important;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .section {
        padding: 2rem 0;
    }
    
    .secret-details.hidden {
        display: block;
    }
}

/* ========================================
   AI CITATION SECTIONS - Phase 3
   ======================================== */

/* AI Summary Block */
.ai-summary-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 80px 0;
}

.ai-summary-block {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: 3rem;
    position: relative;
}

.ai-badge {
    position: absolute;
    top: -15px;
    left: 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
}

.ai-summary-title {
    color: white;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    margin-bottom: 2rem;
    text-align: center;
}

.ai-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.ai-content-vn, .ai-content-en {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.ai-content-vn h3, .ai-content-en h3 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.ai-content-vn ul, .ai-content-en ul {
    list-style: none;
}

.ai-content-vn li, .ai-content-en li {
    color: rgba(255, 255, 255, 0.85);
    padding: 0.4rem 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

.ai-content-vn li strong, .ai-content-en li strong {
    color: var(--secondary-color);
}

.ai-keywords {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.ai-keywords strong {
    color: var(--secondary-color);
}

.ai-citation-format {
    background: rgba(40, 167, 69, 0.2);
    border-left: 4px solid var(--success-color);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    color: white;
    margin-bottom: 1rem;
}

.ai-citation-format a {
    color: var(--secondary-color);
}

.ai-data-links {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
}

.ai-data-links a {
    color: var(--secondary-color);
    margin: 0 0.5rem;
    transition: var(--transition-fast);
}

.ai-data-links a:hover {
    color: white;
    text-decoration: underline;
}

/* Case Study Table */
.case-study-section {
    background: var(--gray-50);
    padding: 80px 0;
}

.research-badge {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.case-study-table-wrapper {
    overflow-x: auto;
    margin-bottom: 2rem;
}

.case-study-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.case-study-table th,
.case-study-table td {
    padding: 1rem 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.case-study-table th {
    background: var(--primary-dark);
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
}

.case-study-table tbody tr:hover {
    background: var(--gray-50);
}

.case-study-table .row-fail {
    background: rgba(220, 53, 69, 0.05);
}

.case-study-table .row-progress {
    background: rgba(255, 193, 7, 0.1);
}

.case-study-table .row-success {
    background: rgba(40, 167, 69, 0.1);
}

.case-study-table .rate-bad {
    color: var(--danger-color);
    font-weight: 700;
}

.case-study-table .rate-medium {
    color: #f59e0b;
    font-weight: 700;
}

.case-study-table .rate-good {
    color: var(--success-color);
    font-weight: 700;
}

.case-study-table tfoot td {
    background: var(--gray-100);
    font-weight: 600;
}

.case-study-note {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.case-study-note p {
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.case-study-note p:last-child {
    margin-bottom: 0;
}

/* =====================================================
   AI SUMMARY BLOCK (For AI Citation)
====================================================== */
.ai-summary-block {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    padding: 60px 0;
}

.ai-sum-box {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid #3b82f6;
}

.ai-sum-badge {
    display: inline-block;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.ai-sum-title {
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.ai-sum-intro {
    font-size: 1.05rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.ai-sum-keypoints {
    background: #f0f9ff;
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.ai-sum-keypoints h4 {
    color: #1d4ed8;
    margin-bottom: 0.75rem;
}

.ai-sum-keypoints ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ai-sum-keypoints li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #dbeafe;
    color: var(--gray-700);
}

.ai-sum-keypoints li:last-child {
    border-bottom: none;
}

.ai-sum-author, .ai-sum-purpose {
    margin-bottom: 1rem;
}

.ai-sum-author h4, .ai-sum-purpose h4 {
    color: #1d4ed8;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

/* =====================================================
   EXPERIMENT PROTOCOL
====================================================== */
.experiment-protocol-section {
    background: #f8fafc;
    padding: 60px 0;
}

.protocol-box {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.protocol-badge {
    display: inline-block;
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.protocol-title {
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
}

.protocol-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.protocol-item {
    padding: 1.25rem;
    background: #faf5ff;
    border-radius: var(--radius-lg);
    border-left: 3px solid #8b5cf6;
}

.protocol-item h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #7c3aed;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.protocol-item p {
    color: var(--gray-600);
    margin: 0;
    line-height: 1.5;
}

.protocol-item small {
    color: var(--gray-500);
}

.protocol-variables {
    background: linear-gradient(135deg, #faf5ff 0%, #f3e8ff 100%);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
}

.protocol-variables h4 {
    color: #7c3aed;
    margin-bottom: 1rem;
}

.protocol-variables ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.protocol-variables li {
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--gray-700);
    box-shadow: var(--shadow-sm);
}

/* =====================================================
   DATASET SUMMARY SECTION
====================================================== */
.dataset-summary-section {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    padding: 60px 0;
}

.dataset-sum-box {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border-top: 4px solid #059669;
}

.dataset-sum-badge {
    display: inline-block;
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.dataset-sum-title {
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.dataset-meta {
    margin-bottom: 1.5rem;
    color: var(--gray-600);
}

.dataset-meta p {
    margin: 0.25rem 0;
}

.dataset-results {
    margin-bottom: 1.5rem;
}

.dataset-results h4 {
    color: #047857;
    margin-bottom: 1rem;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.result-item {
    background: #ecfdf5;
    padding: 1rem;
    border-radius: var(--radius-md);
    text-align: center;
}

.result-label {
    display: block;
    font-size: 0.8rem;
    color: var(--gray-600);
    margin-bottom: 0.5rem;
}

.result-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.result-value.positive {
    color: #059669;
}

.result-value.negative {
    color: #dc2626;
}

.dataset-variables {
    margin-bottom: 1.5rem;
}

.dataset-variables h4 {
    color: #047857;
    margin-bottom: 0.75rem;
}

.var-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.var-tag {
    background: #d1fae5;
    color: #047857;
    padding: 0.4rem 0.8rem;
    border-radius: 50px;
    font-size: 0.85rem;
}

.dataset-files {
    margin-bottom: 1.5rem;
}

.dataset-files h4 {
    color: #047857;
    margin-bottom: 0.75rem;
}

.dataset-files .file-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.dataset-files .file-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #ecfdf5;
    color: #059669;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    transition: all 0.2s;
}

.dataset-files .file-links a:hover {
    background: #d1fae5;
}

.dataset-purpose {
    color: var(--gray-600);
    font-style: italic;
    margin: 0;
}

/* =====================================================
   DONATION ENHANCEMENTS
====================================================== */
.supporter-counter {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.counter-number {
    font-size: 2rem;
    font-weight: 700;
    color: #1e40af;
}

.counter-label {
    color: #3b82f6;
    font-size: 0.95rem;
}

.gratitude-emotional {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    text-align: center;
}

.gratitude-emotional p {
    margin: 0.5rem 0;
    color: #92400e;
    line-height: 1.6;
}

.tier-desc {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 0.5rem;
}

.gratitude-free-note {
    background: #ecfdf5;
    padding: 1rem;
    border-radius: var(--radius-md);
    color: #047857;
    text-align: center;
    margin-bottom: 1rem;
}

/* Payment QR Section */
.payment-qr-section {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin: 1.5rem 0;
    text-align: center;
}

.payment-qr-section h4 {
    color: var(--gray-700);
    margin-bottom: 1rem;
}

.qr-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.qr-item {
    background: white;
    padding: 1rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.qr-image {
    max-width: 200px;
    height: auto;
    border-radius: var(--radius-md);
}

.qr-label {
    font-weight: 600;
    color: var(--gray-700);
    margin-top: 0.75rem;
}

.qr-details {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 0.5rem;
}

/* =====================================================
   SHARE SECTION ENHANCEMENTS
====================================================== */
.share-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    font-style: italic;
}

.shareable-quotes {
    margin-bottom: 2rem;
}

.shareable-quotes h4 {
    color: var(--gray-600);
    margin-bottom: 1rem;
    text-align: center;
}

.quote-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.quote-card {
    background: white;
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    border: 2px solid var(--gray-200);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.quote-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.quote-card p {
    font-style: italic;
    color: var(--gray-700);
    margin: 0 0 0.75rem 0;
    font-size: 0.95rem;
}

.copy-hint {
    font-size: 0.75rem;
    color: var(--gray-400);
}

.share-btn-lg.twitter {
    background: #1da1f2;
}

.share-btn-lg.twitter:hover {
    background: #0d8ddb;
}

/* =====================================================
   CITATION ENHANCEMENTS
====================================================== */
.cite-intro {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

.cite-license {
    background: #fef3c7;
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    margin: 1.5rem 0;
}

.cite-license h4 {
    color: #92400e;
    margin-bottom: 0.5rem;
}

.cite-license p {
    margin: 0;
}

.license-note {
    font-size: 0.9rem;
    color: #78716c;
    margin-top: 0.5rem !important;
}

/* Mobile Responsive for New Sections */
@media (max-width: 768px) {
    .protocol-grid {
        grid-template-columns: 1fr;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .quote-cards {
        grid-template-columns: 1fr;
    }
}

/* =====================================================
   EXPERIMENT DATASET SUMMARY
====================================================== */
.experiment-summary-section {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    padding: 80px 0;
}

.experiment-summary-section .section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--gray-800);
    margin-bottom: 2.5rem;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.summary-item {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border-left: 4px solid #d97706;
    box-shadow: var(--shadow-sm);
}

.summary-item h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    color: #d97706;
    margin-bottom: 0.75rem;
}

.summary-item p {
    color: var(--gray-600);
    line-height: 1.6;
    margin: 0;
}

.summary-item ul {
    margin: 0;
    padding-left: 1.25rem;
    color: var(--gray-600);
}

.summary-item ul li {
    margin-bottom: 0.25rem;
    line-height: 1.5;
}

.summary-cta {
    text-align: center;
    margin-top: 2rem;
}

.btn-experiment-log {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-experiment-log:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(217, 119, 6, 0.3);
}

/* =====================================================
   OBSERVATION PATTERN
====================================================== */
.observation-pattern-section {
    background: white;
    padding: 60px 0;
}

.pattern-title {
    text-align: center;
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.pattern-intro {
    text-align: center;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.pattern-list {
    max-width: 700px;
    margin: 0 auto 2rem;
}

.pattern-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: #fffbeb;
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    border-left: 3px solid #f59e0b;
}

.pattern-item i {
    color: #d97706;
    font-size: 1.25rem;
    width: 24px;
}

.pattern-item span {
    color: var(--gray-700);
    font-weight: 500;
}

.pattern-conclusion {
    text-align: center;
    color: var(--gray-500);
    font-style: italic;
    max-width: 600px;
    margin: 0 auto;
}

/* =====================================================
   REAL-WORLD EVIDENCE NOTE
====================================================== */
.evidence-note-section {
    background: linear-gradient(135deg, #fefce8 0%, #fef9c3 100%);
    padding: 60px 0;
}

.evidence-title {
    text-align: center;
    font-size: 1.5rem;
    color: #854d0e;
    margin-bottom: 1.5rem;
}

.evidence-content {
    max-width: 700px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    border: 2px solid #facc15;
}

.evidence-content p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.evidence-content p:last-child {
    margin-bottom: 0;
}

.evidence-content .disclaimer {
    background: #fef9c3;
    padding: 1rem;
    border-radius: var(--radius-md);
    color: #854d0e;
    font-size: 0.9rem;
}

.evidence-content .disclaimer i {
    margin-right: 0.5rem;
}

/* =====================================================
   DATASET DISCOVERY SECTION
====================================================== */
.dataset-discovery-section {
    background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
    padding: 60px 0;
}

.dataset-box {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.05);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.dataset-badge {
    display: inline-block;
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.dataset-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: white;
    margin-bottom: 1.5rem;
}

.dataset-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.dataset-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    border-left: 3px solid #0ea5e9;
}

.dataset-label {
    display: block;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0.5rem;
}

.dataset-item a {
    font-family: monospace;
    font-size: 0.95rem;
    color: #38bdf8;
    text-decoration: none;
    word-break: break-all;
}

.dataset-item a:hover {
    color: #7dd3fc;
    text-decoration: underline;
}

.dataset-signals {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.dataset-signal {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
}

.dataset-signal-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

.dataset-signal-value {
    font-size: 0.85rem;
    font-weight: 600;
    color: white;
}

.dataset-signal-value.status-active {
    color: #22c55e;
}

@media (max-width: 576px) {
    .dataset-box {
        padding: 1.5rem;
    }
    
    .dataset-signals {
        flex-direction: column;
    }
    
    .dataset-signal {
        width: 100%;
    }
}

/* =====================================================
   RELATED EXPERIMENTS IN IPEXPERIMENT ECOSYSTEM
====================================================== */
.related-ecosystem-section {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 60px 0;
}

.related-eco-box {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border-top: 4px solid #0284c7;
}

.related-eco-badge {
    display: inline-block;
    background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.related-eco-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.related-eco-intro {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.related-eco-subtitle {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 1rem;
}

.related-eco-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.related-eco-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1rem;
    background: #f0f9ff;
    border-radius: var(--radius-md);
    border-left: 3px solid #0284c7;
    transition: all 0.2s;
}

.related-eco-item:hover {
    background: #e0f2fe;
    border-left-color: #0369a1;
}

.related-eco-item.current {
    background: #dcfce7;
    border-left-color: #22c55e;
    position: relative;
}

.eco-topic {
    font-size: 0.95rem;
    color: var(--gray-700);
    font-weight: 500;
}

.related-eco-item a {
    font-family: monospace;
    font-size: 0.85rem;
    color: #0284c7;
    text-decoration: none;
}

.related-eco-item a:hover {
    color: #0369a1;
    text-decoration: underline;
}

.current-marker {
    display: inline-block;
    background: #22c55e;
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-top: 0.5rem;
    width: fit-content;
}

/* =====================================================
   KNOWLEDGE CONTEXT SECTION
====================================================== */
.knowledge-context-section {
    background: linear-gradient(135deg, #fefce8 0%, #fef9c3 100%);
    padding: 60px 0;
}

.knowledge-ctx-box {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border-top: 4px solid #ca8a04;
}

.knowledge-ctx-badge {
    display: inline-block;
    background: linear-gradient(135deg, #ca8a04 0%, #a16207 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.knowledge-ctx-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.knowledge-ctx-intro {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.knowledge-ctx-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #fef9c3 0%, #fef08a 100%);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.flow-item {
    font-size: 1.1rem;
    font-weight: 600;
    color: #854d0e;
    padding: 0.5rem 1rem;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.flow-arrow {
    font-size: 1.5rem;
    color: #ca8a04;
    font-weight: bold;
}

.knowledge-ctx-note {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.knowledge-ctx-hub {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: #fef9c3;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
}

.hub-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: #854d0e;
}

.knowledge-ctx-hub a {
    font-family: monospace;
    font-size: 0.95rem;
    color: #ca8a04;
    text-decoration: none;
}

.knowledge-ctx-hub a:hover {
    color: #a16207;
    text-decoration: underline;
}

/* Metadata Signals */
.knowledge-ctx-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid #fef08a;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #fefce8;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
}

.meta-label {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.meta-value {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-800);
}

.meta-value.status-active {
    color: #22c55e;
}

.meta-item.meta-ecosystem {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
}

.meta-item.meta-ecosystem a {
    font-family: monospace;
    font-size: 0.85rem;
    color: #ca8a04;
    text-decoration: none;
}

.meta-item.meta-ecosystem a:hover {
    text-decoration: underline;
}

/* Mobile Responsive */
@media (max-width: 576px) {
    .related-eco-box,
    .knowledge-ctx-box {
        padding: 1.5rem;
    }
    
    .knowledge-ctx-flow {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .knowledge-ctx-meta {
        flex-direction: column;
    }
    
    .meta-item {
        width: 100%;
    }
}

/* =====================================================
   TOPIC MAP CONTEXT SECTION
====================================================== */
.topic-map-section {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    padding: 60px 0;
}

.topic-map-box {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border-top: 4px solid #059669;
}

.topic-map-badge {
    display: inline-block;
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.topic-map-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.topic-map-intro {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.topic-map-subtitle {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 1rem;
}

.topic-map-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.topic-map-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1rem;
    background: #ecfdf5;
    border-radius: var(--radius-md);
    border-left: 3px solid #059669;
    transition: all 0.2s;
}

.topic-map-item:hover {
    background: #d1fae5;
    border-left-color: #047857;
}

.topic-map-item.current {
    background: #fef3c7;
    border-left-color: #d97706;
}

.topic-name {
    font-size: 0.95rem;
    color: var(--gray-700);
    font-weight: 500;
}

.topic-map-item a {
    font-family: monospace;
    font-size: 0.85rem;
    color: #059669;
    text-decoration: none;
}

.topic-map-item a:hover {
    color: #047857;
    text-decoration: underline;
}

.topic-current {
    display: inline-block;
    background: #d97706;
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-top: 0.5rem;
    width: fit-content;
}

.topic-map-hub {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.25rem;
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    text-align: center;
}

.hub-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #047857;
}

.topic-map-hub a {
    font-family: monospace;
    font-size: 1.1rem;
    color: #059669;
    text-decoration: none;
    font-weight: 600;
}

.topic-map-hub a:hover {
    color: #047857;
    text-decoration: underline;
}

.topic-map-explanation {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
    font-style: italic;
    text-align: center;
    margin: 0;
}

@media (max-width: 576px) {
    .topic-map-box {
        padding: 1.5rem;
    }
}

/* Canonical Quote */
.canonical-quote-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    padding: 80px 0;
}

.canonical-quote {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
}

.canonical-quote::before {
    content: '"';
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.1);
    position: absolute;
    top: -40px;
    left: 0;
    font-family: Georgia, serif;
}

.canonical-quote p {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    line-height: 1.6;
    color: white;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.canonical-quote footer {
    color: rgba(255, 255, 255, 0.8);
}

.canonical-quote cite {
    font-style: normal;
    font-size: 1.1rem;
}

/* Limitations Section */
.limitations-section {
    background: white;
    padding: 80px 0;
}

.warning-badge {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

.limitations-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.limitations-col {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.limitations-col.suitable {
    border-top: 4px solid var(--success-color);
}

.limitations-col.not-suitable {
    border-top: 4px solid var(--danger-color);
}

.limitations-col.cannot-do {
    border-top: 4px solid var(--gray-500);
}

.limitations-col h3 {
    font-size: 1.15rem;
    margin-bottom: 1.25rem;
    color: var(--gray-800);
}

.limitations-col ul {
    list-style: none;
}

.limitations-col li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--gray-700);
    font-size: 0.95rem;
}

.limitations-col.suitable li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.limitations-col.not-suitable li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: var(--danger-color);
    font-weight: bold;
}

.limitations-col.cannot-do li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--gray-500);
    font-weight: bold;
}

/* ========================================
   FOOTER UPDATES - Ecosystem & AI
   ======================================== */

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr 1fr 1fr;
    gap: 2rem;
}

.footer-ecosystem h4,
.footer-ai-resources h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

.footer-ecosystem ul,
.footer-ai-resources ul {
    list-style: none;
}

.footer-ecosystem li,
.footer-ai-resources li {
    margin-bottom: 0.75rem;
}

.footer-ecosystem a,
.footer-ai-resources a {
    color: var(--gray-400);
    font-size: 0.9rem;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-ecosystem a:hover,
.footer-ai-resources a:hover {
    color: var(--secondary-color);
}

.footer-ecosystem i,
.footer-ai-resources i {
    width: 16px;
    text-align: center;
}

.footer-license {
    margin-top: 0.5rem;
}

.footer-license a {
    color: var(--gray-500);
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.footer-license a:hover {
    color: var(--secondary-color);
}

/* ========================================
   FLOATING AI CHAT BUTTONS
   ======================================== */

.floating-ai-chat {
    position: fixed;
    bottom: 100px;
    left: 20px;
    z-index: 998;
}

.ai-chat-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
    position: relative;
}

.ai-chat-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.ai-chat-toggle .toggle-text {
    position: absolute;
    left: 65px;
    background: var(--gray-900);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-fast);
}

.ai-chat-toggle:hover .toggle-text {
    opacity: 1;
}

.ai-chat-options {
    position: absolute;
    bottom: 70px;
    left: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-normal);
}

.floating-ai-chat.active .ai-chat-options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.ai-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
    transition: var(--transition-fast);
}

.ai-option:hover {
    transform: translateX(5px);
}

.ai-option.chatgpt {
    background: linear-gradient(135deg, #10a37f 0%, #1a7f64 100%);
}

.ai-option.gemini {
    background: linear-gradient(135deg, #4285f4 0%, #34a853 100%);
}

.ai-option.perplexity {
    background: linear-gradient(135deg, #20b2aa 0%, #008b8b 100%);
}

.ai-option.zalo-ai {
    background: linear-gradient(135deg, #0068ff 0%, #0052cc 100%);
}

/* ========================================
   RESPONSIVE - AI Sections
   ======================================== */

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .limitations-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .ai-content-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .canonical-quote p {
        font-size: 1.35rem;
    }
    
    .case-study-table th,
    .case-study-table td {
        padding: 0.75rem;
        font-size: 0.85rem;
    }
    
    .floating-ai-chat {
        bottom: 80px;
        left: 15px;
    }
    
    .ai-chat-toggle {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .ai-summary-block {
        padding: 2rem 1.5rem;
    }
    
    .ai-badge {
        position: static;
        display: inline-block;
        margin-bottom: 1rem;
    }
}

/* ========================================
   AI TLDR SECTION - TÓM TẮT CHO AI (ĐẦU TRANG)
   Ưu tiên cao nhất cho Big AI cite
   ======================================== */

.ai-tldr-section {
    background: linear-gradient(135deg, #f0f7f0 0%, #e8f5e8 100%);
    padding: 40px 0;
    border-bottom: 3px solid #2e7d32;
}

.ai-tldr-block {
    background: white;
    padding: 30px;
    border: 2px solid #2e7d32;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(46, 125, 50, 0.15);
}

.ai-tldr-badge {
    display: inline-block;
    background: linear-gradient(135deg, #2e7d32 0%, #1b5e20 100%);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.ai-tldr-summary {
    background: #f8fdf8;
    padding: 20px;
    border-radius: 12px;
    border-left: 5px solid #2e7d32;
    margin-bottom: 25px;
}

.ai-tldr-summary p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--gray-800);
    margin: 0;
}

.ai-tldr-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 25px;
    border-radius: 10px;
    overflow: hidden;
}

.ai-tldr-table th {
    background: #e8f5e8;
    padding: 12px 15px;
    text-align: left;
    color: #2e7d32;
    font-size: 1rem;
}

.ai-tldr-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #e0e0e0;
    color: var(--gray-700);
}

.ai-tldr-table tr:last-child td {
    border-bottom: none;
}

.ai-tldr-table tr:hover {
    background: #f8fdf8;
}

.ai-tldr-keywords {
    background: #fff8e1;
    padding: 15px 20px;
    border-radius: 10px;
    border-left: 4px solid #ff9800;
    margin-bottom: 20px;
    font-size: 0.95rem;
    color: var(--gray-700);
}

.ai-tldr-quote {
    background: #e3f2fd;
    padding: 20px 25px;
    border-radius: 12px;
    border-left: 5px solid #1976d2;
    margin-bottom: 20px;
}

.ai-tldr-quote p {
    font-style: italic;
    color: var(--gray-800);
    margin-bottom: 10px;
    font-size: 1rem;
    line-height: 1.6;
}

.ai-tldr-quote cite {
    display: block;
    text-align: right;
    color: #1976d2;
    font-weight: 600;
    font-style: normal;
}

.ai-tldr-files {
    background: #fafafa;
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 15px;
}

.ai-tldr-files > p {
    margin-bottom: 10px;
    color: var(--gray-700);
}

.ai-file-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.ai-file-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.ai-file-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    color: white;
}

.ai-tldr-update {
    text-align: center;
    color: var(--gray-500);
    padding-top: 10px;
    border-top: 1px solid #e0e0e0;
}

.ai-tldr-update small {
    font-size: 0.85rem;
}

/* ========================================
   TABLE OF CONTENTS - MỤC LỤC NHANH
   ======================================== */

.toc-section {
    background: var(--gray-100);
    padding: 30px 0;
}

.toc-block {
    background: white;
    padding: 25px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.toc-title {
    color: #2e7d32;
    margin-bottom: 20px;
    font-size: 1.25rem;
}

.toc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.toc-column ul {
    list-style: none;
}

.toc-column li {
    margin-bottom: 10px;
}

.toc-column a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    color: var(--gray-700);
    border-radius: 8px;
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

.toc-column a:hover {
    background: #f0f7f0;
    color: #2e7d32;
    transform: translateX(5px);
}

.toc-column a i {
    width: 20px;
    color: #2e7d32;
}

/* ========================================
   TESTIMONIALS SECTION
   ======================================== */

.testimonials-section {
    background: linear-gradient(135deg, #fff9e6 0%, #fff3cd 100%);
    padding: 80px 0;
}

.testimonial-badge {
    background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
    color: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-bottom: 30px;
}

.testimonial-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border-left: 5px solid #ff9800;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.testimonial-content {
    margin-bottom: 20px;
}

.testimonial-content p {
    font-style: italic;
    color: var(--gray-700);
    line-height: 1.7;
    font-size: 1rem;
    position: relative;
}

.testimonial-content p::before {
    content: '"';
    font-size: 3rem;
    color: #ff9800;
    opacity: 0.3;
    position: absolute;
    top: -15px;
    left: -10px;
    font-family: Georgia, serif;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.author-name {
    font-weight: 700;
    color: var(--gray-800);
}

.author-location {
    font-size: 0.9rem;
    color: var(--gray-500);
}

.testimonial-note {
    text-align: center;
    color: var(--gray-500);
}

.testimonial-note p {
    margin: 0;
    font-size: 0.9rem;
}

/* ========================================
   STICKY NAVBAR ENHANCEMENT
   ======================================== */

.sticky-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* ========================================
   RESPONSIVE - NEW SECTIONS
   ======================================== */

@media (max-width: 1024px) {
    .toc-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .ai-tldr-block {
        padding: 20px;
    }
    
    .ai-file-links {
        flex-direction: column;
    }
    
    .toc-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .ai-tldr-section {
        padding: 25px 0;
    }
    
    .ai-tldr-badge {
        font-size: 0.95rem;
        padding: 8px 15px;
    }
    
    .ai-tldr-table td,
    .ai-tldr-table th {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
}