/* ========================================
   pcQTL Research - Apple Style CSS
   ======================================== */

/* CSS Variables */
:root {
    /* Colors - Apple Style */
    --color-primary: #0071e3;
    --color-primary-dark: #0077ed;
    --color-secondary: #5e5ce6;
    --color-accent: #bf5af2;
    --color-success: #34c759;
    
    /* Background Colors */
    --bg-primary: #000000;
    --bg-secondary: #1c1c1e;
    --bg-tertiary: #2c2c2e;
    --bg-light: #f5f5f7;
    --bg-white: #ffffff;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-tertiary: rgba(255, 255, 255, 0.6);
    --text-dark: #1d1d1f;
    --text-dark-secondary: #6e6e73;
    
    /* Gradients */
    --gradient-hero: linear-gradient(180deg, #000000 0%, #1a1a2e 50%, #16213e 100%);
    --gradient-accent: linear-gradient(135deg, #0071e3 0%, #5e5ce6 50%, #bf5af2 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --section-padding: 120px;
    --container-max-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 30px 60px rgba(0, 0, 0, 0.4);
}

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

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

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   Navigation
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition-normal);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(0, 0, 0, 0.7);
}

.nav.scrolled {
    padding: 12px 0;
    background: rgba(0, 0, 0, 0.9);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

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

.hero-background {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-primary);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--color-secondary);
    bottom: -150px;
    left: -100px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: var(--color-accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(-30px, -20px) scale(1.02); }
}

#dnaCanvas {
    position: absolute;
    inset: 0;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: 0 24px;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.title-line {
    display: block;
}

.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border-radius: 100px;
    font-size: 1rem;
    font-weight: 600;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 113, 227, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-tertiary);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-tertiary);
    border-radius: 2px;
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(12px); }
}

/* ========================================
   Section Styles
   ======================================== */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 80px;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* ========================================
   Introduction Section
   ======================================== */
.section-intro {
    background: linear-gradient(180deg, #16213e 0%, #1a1a2e 100%);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto 60px;
}

.intro-card {
    padding: 48px 32px;
    text-align: center;
    border-radius: 24px;
    transition: all var(--transition-normal);
}

.glass-card {
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.intro-card.featured {
    background: var(--gradient-accent);
    border: none;
    transform: scale(1.05);
}

.intro-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
}

.intro-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.intro-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    color: var(--text-primary);
}

.intro-card.featured .intro-icon {
    color: white;
}

.intro-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.intro-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

.intro-card.featured p {
    color: rgba(255, 255, 255, 0.9);
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 20px;
}

.intro-arrow {
    width: 48px;
    color: var(--text-tertiary);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: translateX(0); }
    50% { opacity: 1; transform: translateX(5px); }
}

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

.intro-description .lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

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

/* ========================================
   Discoveries Section
   ======================================== */
.section-discoveries {
    background: var(--bg-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

.stat-card {
    text-align: center;
    padding: 48px 32px;
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
}

.stat-card.featured {
    background: var(--gradient-accent);
    border: none;
    transform: scale(1.05);
}

.stat-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.stat-number {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1;
    display: inline;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card.featured .stat-number {
    -webkit-text-fill-color: white;
    background: none;
}

.stat-suffix {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-primary);
    display: inline;
}

.stat-card.featured .stat-suffix {
    color: white;
}

.stat-label {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: 16px;
    color: var(--text-primary);
}

.stat-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

.discovery-context {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: 16px;
}

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

.context-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.context-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.context-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
}

/* ========================================
   Science Section
   ======================================== */
.section-science {
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
}

.science-visualization {
    margin-bottom: 80px;
}

.orchestra-scene {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 40px;
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    border-radius: 32px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 400px;
}

.orchestra-section {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    align-items: center;
}

.musician {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-accent);
    animation: musicianPulse 2s ease-in-out infinite;
}

.musician:nth-child(2) { animation-delay: 0.2s; }
.musician:nth-child(3) { animation-delay: 0.4s; }
.musician:nth-child(4) { animation-delay: 0.6s; }

@keyframes musicianPulse {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.1); opacity: 1; }
}

.section-label-text {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-left: 16px;
}

.conductor {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.conductor-figure {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffd700 0%, #ffaa00 100%);
    margin: 0 auto 12px;
    animation: conduct 3s ease-in-out infinite;
}

@keyframes conduct {
    0%, 100% { transform: rotate(-10deg); }
    50% { transform: rotate(10deg); }
}

.conductor span {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.sound-waves {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.wave {
    width: 4px;
    height: 40px;
    background: var(--gradient-accent);
    border-radius: 2px;
    animation: wave 1s ease-in-out infinite;
}

.wave:nth-child(2) { animation-delay: 0.1s; height: 60px; }
.wave:nth-child(3) { animation-delay: 0.2s; height: 40px; }

@keyframes wave {
    0%, 100% { transform: scaleY(0.5); opacity: 0.5; }
    50% { transform: scaleY(1); opacity: 1; }
}

.science-explanation {
    max-width: 1000px;
    margin: 0 auto;
}

.explanation-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.explanation-item {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-secondary);
    border-radius: 16px;
    transition: all var(--transition-normal);
}

.explanation-item:hover {
    transform: translateY(-4px);
    background: var(--bg-tertiary);
}

.explanation-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    opacity: 0.3;
    line-height: 1;
    margin-bottom: 16px;
}

.explanation-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.explanation-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   Impact Section
   ======================================== */
.section-impact {
    background: var(--bg-primary);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 80px;
}

.impact-card {
    padding: 48px 32px;
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    text-align: center;
    transition: all var(--transition-normal);
}

.impact-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
    border-color: rgba(255, 255, 255, 0.2);
}

.impact-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    color: var(--color-primary);
}

.impact-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.impact-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.impact-quote {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 48px;
    background: var(--gradient-accent);
    border-radius: 24px;
}

.impact-quote blockquote {
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.6;
    margin-bottom: 24px;
    font-style: italic;
}

.impact-quote cite {
    font-size: 1rem;
    opacity: 0.8;
    font-style: normal;
}

/* ========================================
   Gallery Section
   ======================================== */
.section-gallery {
    background: linear-gradient(180deg, #16213e 0%, #1a1a2e 100%);
}

.gallery-item {
    margin-bottom: 32px;
}

.gallery-item.full-width {
    grid-column: 1 / -1;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.gallery-grid.charts {
    grid-template-columns: repeat(3, 1fr);
    margin-top: 32px;
}

.gallery-card {
    background: var(--bg-secondary);
    border-radius: 20px;
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.gallery-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
    border-color: rgba(255, 255, 255, 0.1);
}

.gallery-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

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

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

.gallery-content {
    padding: 24px;
}

.gallery-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.gallery-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   Team Section
   ======================================== */
.section-team {
    background: var(--bg-primary);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.team-card {
    padding: 48px 32px;
    text-align: center;
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    transition: all var(--transition-normal);
}

.team-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
}

.team-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    color: var(--color-primary);
}

.team-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.team-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ========================================
   References Section
   ======================================== */
.section-references {
    background: linear-gradient(180deg, #1a1a2e 0%, #000000 100%);
}

.references-list {
    max-width: 900px;
    margin: 0 auto;
}

.reference-item {
    display: flex;
    gap: 24px;
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: 16px;
    margin-bottom: 16px;
    transition: all var(--transition-normal);
}

.reference-item:hover {
    background: var(--bg-tertiary);
    transform: translateX(8px);
}

.reference-number {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    min-width: 40px;
}

.reference-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.reference-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 12px;
}

.reference-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.reference-link:hover {
    color: var(--color-primary-dark);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--bg-primary);
    padding: 80px 0 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    display: block;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 80px;
}

.footer-column h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-tertiary);
    font-size: 0.75rem;
    margin-bottom: 4px;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .stats-grid,
    .impact-grid,
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .explanation-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-grid.charts {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }
    
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .intro-arrow {
        transform: rotate(90deg);
        margin: 16px auto;
    }
    
    .intro-card.featured {
        transform: none;
    }
    
    .intro-card.featured:hover {
        transform: translateY(-8px);
    }
    
    .stats-grid,
    .impact-grid,
    .team-grid,
    .explanation-grid,
    .gallery-grid,
    .gallery-grid.charts {
        grid-template-columns: 1fr;
    }
    
    .stat-card.featured {
        transform: none;
    }
    
    .stat-card.featured:hover {
        transform: translateY(-8px);
    }
    
    .discovery-context {
        flex-direction: column;
        gap: 24px;
    }
    
    .context-divider {
        width: 60px;
        height: 1px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 48px;
    }
    
    .footer-links {
        gap: 40px;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .impact-quote blockquote {
        font-size: 1.125rem;
    }
}

/* ========================================
   Animations
   ======================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}