/* SLIM-ARC Website Styles - Top-tier Tech Company Aesthetic */
/* Color Palette: Deep Navy + Electric Cyan + Soft Purple on Dark */

:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #0f1424;
    --bg-card: rgba(255,255,255,0.04);
    --bg-card-hover: rgba(255,255,255,0.08);
    --border: rgba(255,255,255,0.1);
    --text-primary: #e8ecf4;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --accent-cyan: #06b6d4;
    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
    --accent-green: #10b981;
    --gradient: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-soft: linear-gradient(135deg, rgba(6,182,212,0.1) 0%, rgba(139,92,246,0.1) 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

#particle-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.4;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 4rem;
    background: rgba(10,14,26,0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-logo { display: flex; align-items: center; gap: 0.75rem; }
.nav-logo-img { width: 36px; height: 36px; object-fit: contain; }
.nav-title { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }

.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent-cyan); }
.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0; right: 0;
    height: 2px;
    background: var(--accent-cyan);
    border-radius: 1px;
}
.nav-github {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: all 0.3s;
}
.nav-github:hover { background: var(--bg-card-hover); border-color: var(--accent-cyan); }

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6rem 4rem 4rem;
    position: relative;
    z-index: 1;
    gap: 4rem;
}

.hero-content { flex: 1; max-width: 600px; }
.hero-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--gradient-soft);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
    font-weight: 500;
}
.hero-title { font-size: 4.5rem; font-weight: 800; letter-spacing: -0.04em; margin-bottom: 1rem; }
.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle { font-size: 1.4rem; color: var(--text-primary); margin-bottom: 0.5rem; font-weight: 500; }
.hero-desc { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 2.5rem; }

.hero-cta { display: flex; gap: 1rem; }
.btn {
    padding: 0.9rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s;
    display: inline-block;
}
.btn-primary { background: var(--gradient); color: white; box-shadow: 0 4px 20px rgba(6,182,212,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 30px rgba(6,182,212,0.5); }
.btn-secondary { background: var(--bg-card); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg-card-hover); border-color: var(--accent-cyan); }

/* Floating cards */
.hero-visual { flex: 0 0 400px; position: relative; height: 400px; }
.floating-card {
    position: absolute;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    text-align: center;
    animation: float 6s ease-in-out infinite;
}
.card-1 { top: 0; left: 20%; animation-delay: 0s; }
.card-2 { top: 30%; right: 0; animation-delay: 1.5s; }
.card-3 { bottom: 30%; left: 0; animation-delay: 3s; }
.card-4 { bottom: 0; right: 20%; animation-delay: 4.5s; }
.card-value { font-size: 2rem; font-weight: 800; color: var(--accent-cyan); }
.card-label { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.25rem; }

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

/* Sections */
section { padding: 6rem 4rem; position: relative; z-index: 1; }
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    letter-spacing: -0.02em;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.stat-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.3s;
}
.stat-card:hover { transform: translateY(-4px); border-color: var(--accent-cyan); }
.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}
.stat-desc { color: var(--text-secondary); font-size: 1rem; }
.stat-sub { font-size: 0.8rem; color: var(--text-muted); }

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.feature-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.3s;
}
.feature-card:hover { transform: translateY(-4px); border-color: var(--accent-purple); box-shadow: 0 10px 40px rgba(139,92,246,0.15); }
.feature-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.feature-card h3 { font-size: 1.25rem; margin-bottom: 0.75rem; font-weight: 600; }
.feature-card p { color: var(--text-secondary); font-size: 0.95rem; }
.feature-card code { color: var(--accent-cyan); background: rgba(6,182,212,0.1); padding: 0.1rem 0.4rem; border-radius: 4px; font-size: 0.85rem; }

/* Optimization Chain */
.chain-container {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 1rem;
    max-width: 1000px;
    margin: 0 auto;
    height: 300px;
}
.chain-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    height: 100%;
    position: relative;
}
.chain-bar {
    width: 100%;
    background: var(--gradient);
    border-radius: 12px 12px 0 0;
    transition: height 1s ease;
    min-height: 20px;
    box-shadow: 0 4px 20px rgba(6,182,212,0.2);
}
.chain-step.highlight .chain-bar { box-shadow: 0 4px 30px rgba(236,72,153,0.4); }
.chain-label { margin-top: 1rem; font-size: 0.9rem; color: var(--text-secondary); font-weight: 500; }
.chain-value { font-size: 1.1rem; font-weight: 700; color: var(--accent-cyan); }
.chain-arrow { color: var(--text-muted); font-size: 1.5rem; align-self: center; margin-bottom: 4rem; }

/* CTA */
.cta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}
.cta-card {
    display: block;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s;
}
.cta-card:hover { border-color: var(--accent-cyan); transform: translateY(-2px); }
.cta-card h3 { margin-bottom: 0.5rem; color: var(--accent-cyan); }
.cta-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* Footer */
.footer {
    text-align: center;
    padding: 3rem 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
}
.footer p { margin-bottom: 0.5rem; }

/* Reveal animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s, transform 0.8s;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Page header (for sub-pages) */
.page-header {
    padding: 10rem 4rem 4rem;
    text-align: center;
    position: relative;
    z-index: 1;
}
.page-header h1 { font-size: 3rem; font-weight: 800; margin-bottom: 1rem; }
.page-header p { color: var(--text-secondary); font-size: 1.2rem; max-width: 700px; margin: 0 auto; }

/* Architecture page */
.arch-layer {
    margin: 3rem auto;
    max-width: 900px;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent-cyan);
    border-radius: 12px;
    transition: all 0.3s;
}
.arch-layer:nth-child(2) { border-left-color: var(--accent-purple); }
.arch-layer:nth-child(3) { border-left-color: var(--accent-pink); }
.arch-layer:hover { background: var(--bg-card-hover); transform: translateX(8px); }
.arch-layer h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.arch-layer p { color: var(--text-secondary); margin-bottom: 1rem; }
.arch-layer ul { list-style: none; }
.arch-layer li { padding: 0.5rem 0; color: var(--text-secondary); }
.arch-layer li::before { content: '▸ '; color: var(--accent-cyan); font-weight: bold; }

/* Benchmark tables */
.bench-table {
    width: 100%;
    max-width: 900px;
    margin: 2rem auto;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border);
}
.bench-table th, .bench-table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.bench-table th { background: var(--bg-secondary); color: var(--accent-cyan); font-weight: 600; }
.bench-table tr:hover { background: var(--bg-card-hover); }
.bench-table .highlight { color: var(--accent-green); font-weight: 700; }

/* Team */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}
.team-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.3s;
}
.team-card:hover { transform: translateY(-4px); border-color: var(--accent-purple); }
.team-avatar {
    width: 100px; height: 100px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    color: white;
}
.team-name { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.25rem; }
.team-role { color: var(--accent-cyan); font-size: 0.9rem; margin-bottom: 0.5rem; }
.team-desc { color: var(--text-secondary); font-size: 0.85rem; }

/* Responsive */
@media (max-width: 768px) {
    .nav { padding: 1rem 1.5rem; }
    .nav-links { display: none; }
    .hero { flex-direction: column; padding: 6rem 1.5rem 2rem; text-align: center; }
    .hero-title { font-size: 2.5rem; }
    .hero-visual { display: none; }
    section { padding: 4rem 1.5rem; }
    .section-title { font-size: 1.8rem; }
    .chain-container { flex-direction: column; height: auto; gap: 2rem; }
    .chain-arrow { transform: rotate(90deg); margin: 0; }
}