/* ============================================
   THE VALLÉE PROJECT - Modern Dashboard Styles
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --bg-dark: #05080b;
    --bg-primary: #0a1115;
    --bg-secondary: #0e1a20;
    --bg-card: #13242b;
    --bg-card-hover: #1b313a;
    --bg-accent: #0e2a2f;

    --text-primary: #eef5f3;
    --text-secondary: #a6b7b2;
    --text-muted: #667874;

    --accent-cyan: #22f0c7;
    --accent-purple: #ff6b35;
    --accent-violet: #ffd166;
    --accent-green: #35d07f;
    --accent-blue: #2dd4bf;
    --accent-yellow: #f6c453;
    --accent-orange: #ff8c42;
    --accent-red: #ff4d4f;
    --accent-pink: #ff9bd5;

    --gradient-primary: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-violet) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-purple) 100%);
    --gradient-dark: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-primary) 100%);

    /* Spacing */
    --container-max: 1400px;
    --section-padding: 6rem;
    --card-radius: 16px;
    --border-radius: 12px;

    /* Effects */
    --shadow-sm: 0 2px 8px rgba(5, 8, 11, 0.3);
    --shadow-md: 0 4px 16px rgba(5, 8, 11, 0.45);
    --shadow-lg: 0 12px 34px rgba(5, 8, 11, 0.55);
    --shadow-glow: 0 0 50px rgba(34, 240, 199, 0.18);

    /* Typography */
    --font-primary: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Unbounded', 'Sora', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: radial-gradient(1200px 800px at 80% -20%, rgba(34, 240, 199, 0.15), transparent 60%),
        radial-gradient(900px 700px at 10% 10%, rgba(255, 140, 66, 0.14), transparent 65%),
        var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animated Star Background */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.stars, .stars2, .stars3 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-repeat: repeat;
}

.stars {
    background: radial-gradient(2px 2px at 20px 30px, rgba(255,255,255,0.25), transparent),
                radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.18), transparent),
                radial-gradient(1px 1px at 90px 40px, rgba(255,255,255,0.35), transparent),
                radial-gradient(2px 2px at 160px 120px, rgba(255,255,255,0.22), transparent),
                radial-gradient(1px 1px at 230px 180px, rgba(255,255,255,0.16), transparent);
    background-size: 250px 250px;
    animation: twinkle 8s ease-in-out infinite;
}

.stars2 {
    background: radial-gradient(1px 1px at 50px 80px, rgba(34, 240, 199, 0.35), transparent),
                radial-gradient(2px 2px at 120px 150px, rgba(255, 140, 66, 0.35), transparent),
                radial-gradient(1px 1px at 200px 60px, rgba(246, 196, 83, 0.25), transparent);
    background-size: 300px 300px;
    animation: twinkle 12s ease-in-out infinite;
    animation-delay: 2s;
}

.stars3 {
    background: radial-gradient(1px 1px at 80px 100px, rgba(255,255,255,0.45), transparent),
                radial-gradient(1px 1px at 180px 220px, rgba(255,255,255,0.25), transparent);
    background-size: 350px 350px;
    animation: twinkle 15s ease-in-out infinite;
    animation-delay: 4s;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 120px 120px;
    mask-image: radial-gradient(circle at 50% 30%, rgba(0, 0, 0, 0.75), transparent 70%);
    opacity: 0.35;
}

.bg-glow {
    position: absolute;
    inset: -10% 10% 30% -10%;
    background: radial-gradient(closest-side at 50% 20%, rgba(34, 240, 199, 0.25), transparent 70%);
    filter: blur(30px);
}

.bg-scan {
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255, 209, 102, 0.08) 45%, transparent 60%);
    animation: scanSweep 12s linear infinite;
    mix-blend-mode: screen;
}

@keyframes scanSweep {
    0% { transform: translateX(-60%); opacity: 0.2; }
    50% { opacity: 0.5; }
    100% { transform: translateX(60%); opacity: 0.2; }
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    font-size: 1.25rem;
}

.nav-icon {
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-cyan);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 2rem;
    position: relative;
    background: radial-gradient(ellipse at center bottom, rgba(34, 240, 199, 0.18) 0%, transparent 60%);
}

.hero-content {
    max-width: 900px;
    animation: fadeInUp 1s ease-out;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(34, 240, 199, 0.12);
    border: 1px solid rgba(34, 240, 199, 0.35);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    font-family: var(--font-display);
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: 0.75rem 1.25rem;
    border-radius: 999px;
    background: rgba(19, 36, 43, 0.7);
    border: 1px solid rgba(34, 240, 199, 0.15);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(6px);
}

.stat-value {
    font-size: clamp(1.6rem, 4vw, 2.6rem);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#stat-span {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-divider {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(34, 240, 199, 0.3);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-dark);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(34, 240, 199, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-cyan);
}

.hero-visual {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    pointer-events: none;
    z-index: 1;
}

.orbital-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(34, 240, 199, 0.2);
    box-shadow: 0 0 30px rgba(34, 240, 199, 0.12);
    animation: orbitFloat 14s ease-in-out infinite;
}

.ring-1 {
    width: 520px;
    height: 520px;
    animation-delay: -3s;
}

.ring-2 {
    width: 720px;
    height: 720px;
    border-color: rgba(255, 140, 66, 0.2);
    animation-delay: -7s;
}

.ring-3 {
    width: 940px;
    height: 940px;
    border-color: rgba(255, 209, 102, 0.15);
    animation-delay: -11s;
}

.signal-pulse {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34, 240, 199, 0.35), transparent 70%);
    animation: pulse 6s ease-in-out infinite;
}

@keyframes orbitFloat {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.5; }
    50% { transform: translateY(-18px) scale(1.02); opacity: 0.9; }
}

@keyframes pulse {
    0%, 100% { transform: scale(0.95); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.9; }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: rotate(45deg);
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Styles */
section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(34, 240, 199, 0.15);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

/* Philosophy Section */
.philosophy {
    background: var(--bg-primary);
}

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

.philosophy-card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.philosophy-card:hover {
    transform: translateY(-5px);
    border-color: rgba(34, 240, 199, 0.2);
    box-shadow: var(--shadow-glow);
}

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

.philosophy-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.philosophy-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Tiers Section */
.tiers {
    background: var(--bg-secondary);
}

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

.tier-card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.tier-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.tier-card.tier-1::before { background: var(--accent-green); }
.tier-card.tier-2::before { background: var(--accent-blue); }
.tier-card.tier-3::before { background: var(--accent-yellow); }
.tier-card.tier-4::before { background: var(--accent-red); }

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

.tier-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

.tier-1 .tier-badge { background: rgba(16, 185, 129, 0.2); color: var(--accent-green); }
.tier-2 .tier-badge { background: rgba(59, 130, 246, 0.2); color: var(--accent-blue); }
.tier-3 .tier-badge { background: rgba(251, 191, 36, 0.2); color: var(--accent-yellow); }
.tier-4 .tier-badge { background: rgba(239, 68, 68, 0.2); color: var(--accent-red); }

.tier-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.tier-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.tier-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.example-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Hypotheses Section */
.hypotheses {
    background: var(--bg-primary);
}

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

.hypothesis-chart-wrapper {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: 2rem;
    min-height: 400px;
}

.hypothesis-legend {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.legend-item:hover {
    background: var(--bg-card-hover);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.legend-label {
    flex: 1;
    color: var(--text-secondary);
}

.legend-value {
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.hypothesis-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.category-card.mundane {
    border-left: 4px solid var(--accent-blue);
}

.category-card.extraordinary {
    border-left: 4px solid var(--accent-purple);
}

.category-card h4 {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}

.category-card ul {
    list-style: none;
}

.category-card li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

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

.category-card strong {
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* Cases Section */
.cases {
    background: var(--bg-secondary);
}

.case-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

.filter-group select,
.filter-group input {
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    min-width: 200px;
    transition: all 0.3s ease;
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(34, 240, 199, 0.15);
}

.search-group {
    flex: 1;
    min-width: 250px;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.case-card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.case-card.tier1::before { background: var(--accent-green); }
.case-card.tier2::before { background: var(--accent-blue); }

.case-card:hover {
    transform: translateY(-5px);
    border-color: rgba(34, 240, 199, 0.3);
    box-shadow: var(--shadow-glow);
}

.case-tier-badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.case-card.tier1 .case-tier-badge {
    background: rgba(53, 208, 127, 0.2);
    color: var(--accent-green);
}

.case-card.tier2 .case-tier-badge {
    background: rgba(45, 212, 191, 0.2);
    color: var(--accent-blue);
}

.case-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.case-meta {
    display: flex;
    gap: 0.75rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.case-cluster {
    display: inline-block;
    padding: 0.3rem 0.75rem;
    background: rgba(255, 107, 53, 0.15);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--accent-purple);
}

.case-sensors {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.sensor-tag {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Featured Case Section */
.featured-case {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 6rem 0;
}

.featured-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.featured-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(34, 240, 199, 0.1);
    border: 1px solid rgba(34, 240, 199, 0.3);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
}

.featured-content h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: var(--font-display);
}

.featured-date {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 2rem;
}

.featured-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.featured-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.detail-item {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    text-align: left;
}

.detail-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.detail-value {
    color: var(--text-primary);
    font-size: 0.95rem;
}

.featured-verdict {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.verdict-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

.verdict-item.passed {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-green);
}

.verdict-item.failed {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-red);
}

.verdict-icon {
    font-weight: 700;
}

/* Knowledge Section */
.knowledge {
    background: var(--bg-primary);
}

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

.knowledge-card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.knowledge-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.knowledge-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.25rem;
    font-weight: 700;
}

.knowledge-card.proven .knowledge-icon {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-green);
}

.knowledge-card.likely .knowledge-icon {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
}

.knowledge-card.uncertain .knowledge-icon {
    background: rgba(251, 191, 36, 0.2);
    color: var(--accent-yellow);
}

.knowledge-card.unknown .knowledge-icon {
    background: rgba(136, 136, 160, 0.2);
    color: var(--text-secondary);
}

.knowledge-card h3 {
    font-size: 1.25rem;
}

.knowledge-card ul {
    list-style: none;
}

.knowledge-card li {
    padding: 0.5rem 0;
    padding-left: 1.25rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.knowledge-card li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--text-muted);
}

/* Patterns Section */
.patterns {
    background: var(--bg-secondary);
}

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

.pattern-card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.pattern-card h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.chart-container {
    height: 250px;
    position: relative;
}

/* Methodology Section */
.methodology {
    background: var(--bg-primary);
}

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

.step {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.step:hover {
    border-color: rgba(34, 240, 199, 0.25);
}

.step-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.5;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Quote Section */
.quote-section {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-dark) 100%);
    padding: 8rem 0;
}

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

.featured-quote p {
    font-size: 2rem;
    font-weight: 300;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.featured-quote cite {
    font-size: 1rem;
    color: var(--text-muted);
    font-style: normal;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    padding: 4rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-desc {
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 1.5rem;
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    z-index: 2000;
    overflow-y: auto;
    padding: 2rem;
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--card-radius);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
    margin-top: 2rem;
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: var(--accent-red);
}

.modal-header {
    margin-bottom: 2rem;
}

.modal-tier-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.modal-content h2 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.modal-meta {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.modal-body h3 {
    font-size: 1.1rem;
    margin: 1.5rem 0 0.75rem;
    color: var(--accent-cyan);
}

.modal-body p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.modal-body ul {
    list-style: none;
    margin: 0.5rem 0;
}

.modal-body li {
    padding: 0.4rem 0;
    padding-left: 1.25rem;
    position: relative;
    color: var(--text-secondary);
}

.modal-body li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
}

/* Responsive */
@media (max-width: 1024px) {
    .hypothesis-container {
        grid-template-columns: 1fr;
    }

    .hypothesis-legend {
        flex-direction: row;
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 4rem;
    }

    .nav-links {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .stat-divider {
        display: none;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .case-filters {
        flex-direction: column;
    }

    .filter-group select,
    .filter-group input {
        width: 100%;
    }

    .featured-quote p {
        font-size: 1.5rem;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-card);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--bg-card-hover);
}

/* Selection */
::selection {
    background: rgba(34, 240, 199, 0.3);
    color: var(--text-primary);
}