/* ============================================================
   Sci-Plot Project Overview — Core Stylesheet
   ============================================================ */

/* ---------- CSS Variables & Theming ---------- */
:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293bcc;
  --bg-glass: #ffffff08;
  --border-subtle: #ffffff0d;
  --border-card: #ffffff0f;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-1: #818cf8;
  --accent-2: #22d3ee;
  --accent-3: #f472b6;
  --accent-4: #34d399;
  --accent-5: #fb923c;
  --gradient-hero: linear-gradient(135deg, #818cf8 0%, #22d3ee 50%, #f472b6 100%);
  --gradient-card: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
  --shadow-card: 0 4px 24px #00000033, 0 0 0 1px #ffffff0a;
  --shadow-glow: 0 0 40px #818cf820;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Background Particles ---------- */
.bg-particles {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0; overflow: hidden;
}
.bg-particles .orb {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.15;
}
.bg-particles .orb-1 {
  width: 600px; height: 600px; background: var(--accent-1);
  top: -200px; left: -100px; animation: float-orb-1 20s ease-in-out infinite;
}
.bg-particles .orb-2 {
  width: 500px; height: 500px; background: var(--accent-2);
  bottom: -150px; right: -100px; animation: float-orb-2 25s ease-in-out infinite;
}
.bg-particles .orb-3 {
  width: 400px; height: 400px; background: var(--accent-3);
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  animation: float-orb-3 18s ease-in-out infinite;
}

@keyframes float-orb-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(60px, 40px) scale(1.1); }
  66% { transform: translate(-30px, -20px) scale(0.9); }
}
@keyframes float-orb-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-50px, -30px) scale(1.15); }
  66% { transform: translate(40px, 20px) scale(0.85); }
}
@keyframes float-orb-3 {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.2); }
}

/* ---------- Layout ---------- */
.container {
  position: relative; z-index: 1;
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
}
.section {
  padding: 80px 0; position: relative;
}
.section-header {
  text-align: center; margin-bottom: 56px;
}
.section-label {
  display: inline-block;
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.15em; color: var(--accent-1);
  background: #818cf815; padding: 6px 16px; border-radius: 100px;
  margin-bottom: 16px; border: 1px solid #818cf825;
}
.section-title {
  font-size: 2.25rem; font-weight: 700; letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 1.05rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto;
}

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh; display: flex; align-items: center; padding: 120px 0 80px;
}
.hero-content { text-align: center; max-width: 900px; margin: 0 auto; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 20px; border-radius: 100px;
  background: var(--bg-glass); border: 1px solid var(--border-card);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 32px;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-4); animation: pulse-dot 2s ease-in-out infinite; }
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
.hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.2rem); font-weight: 800;
  letter-spacing: -0.03em; line-height: 1.2; margin-bottom: 20px;
}
.hero h1 .gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.2rem; color: var(--text-secondary); max-width: 560px;
  margin: 0 auto 40px; line-height: 1.7;
}
.hero-stats {
  display: flex; justify-content: center; gap: 48px; margin-bottom: 48px;
}
.hero-stat { text-align: center; }
.hero-stat-value {
  font-size: 2.5rem; font-weight: 800; background: var(--gradient-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1.2;
}
.hero-stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.08em; }

/* ---------- Buttons ---------- */
.btn-group { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 100px;
  font-size: 0.95rem; font-weight: 600; text-decoration: none;
  transition: var(--transition); cursor: pointer; border: none;
}
.btn-primary {
  background: var(--accent-1); color: #fff;
  box-shadow: 0 4px 20px #818cf840;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px #818cf860; }
.btn-secondary {
  background: var(--bg-glass); color: var(--text-primary);
  border: 1px solid var(--border-card); backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.btn-secondary:hover { border-color: var(--accent-1); background: #818cf810; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0; transition: var(--transition);
}
.nav.scrolled {
  background: #0f172af0; backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
}
.nav-logo {
  font-size: 1.25rem; font-weight: 700; color: var(--text-primary);
  text-decoration: none; display: flex; align-items: center; gap: 8px;
}
.nav-logo span { background: var(--gradient-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; gap: 24px; list-style: none; }
.nav-links a {
  color: var(--text-secondary); text-decoration: none; font-size: 0.9rem;
  font-weight: 500; transition: var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-cta {
  padding: 8px 20px; border-radius: 100px; background: var(--accent-1);
  color: #fff !important; font-size: 0.85rem; font-weight: 600;
}

/* ---------- Card System ---------- */
.card {
  background: var(--bg-card); border: 1px solid var(--border-card);
  border-radius: var(--radius-lg); padding: 32px;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  transition: var(--transition); position: relative; overflow: hidden;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  border-color: #ffffff15;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; opacity: 0; transition: var(--transition);
}
.card:hover::before { opacity: 1; }
.card-icon {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px;
}
.card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.65; }

/* Grid layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }

/* ---------- Workflow Timeline ---------- */
.timeline {
  position: relative; max-width: 900px; margin: 0 auto;
}
.timeline::before {
  content: ''; position: absolute; left: 36px; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(to bottom, var(--accent-1), var(--accent-2), var(--accent-3));
  opacity: 0.4;
}
.timeline-item {
  display: flex; gap: 24px; padding-bottom: 48px; position: relative;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-badge {
  width: 72px; height: 72px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; font-weight: 800; color: #fff;
  position: relative; z-index: 1;
  box-shadow: 0 0 30px #ffffff15;
}
.timeline-content {
  background: var(--bg-card); border: 1px solid var(--border-card);
  border-radius: var(--radius-md); padding: 24px 28px;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  flex: 1;
}
.timeline-content h3 {
  font-size: 1.15rem; font-weight: 700; margin-bottom: 6px;
}
.timeline-content .tag {
  display: inline-block; padding: 2px 10px; border-radius: 100px;
  font-size: 0.7rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; margin-bottom: 12px;
}
.timeline-content p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.65; }

/* ---------- Style Cards ---------- */
.style-card {
  background: var(--bg-card); border: 1px solid var(--border-card);
  border-radius: var(--radius-md); padding: 24px;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  transition: var(--transition); cursor: default; text-align: center;
}
.style-card:hover { transform: translateY(-4px); border-color: #ffffff20; }
.style-card .style-preview {
  width: 100%; height: 100px; border-radius: var(--radius-sm);
  margin-bottom: 16px;
}
.style-card h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 4px; }
.style-card p { font-size: 0.8rem; color: var(--text-muted); }

/* ---------- Output Structure ---------- */
.output-tree {
  background: #0a0f1a; border: 1px solid var(--border-card);
  border-radius: var(--radius-md); padding: 28px 32px;
  font-family: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', monospace;
  font-size: 0.85rem; line-height: 1.9; color: var(--text-secondary);
  max-width: 600px; margin: 0 auto;
}
.output-tree .dir { color: var(--accent-2); }
.output-tree .file { color: var(--text-primary); }
.output-tree .comment { color: var(--text-muted); }

/* ---------- Feature Highlights ---------- */
.feature-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-glass); border: 1px solid var(--border-card);
  border-radius: var(--radius-md); padding: 28px;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  transition: var(--transition);
}
.feature-card:hover { border-color: #ffffff15; transform: translateY(-2px); }
.feature-card .feature-icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 16px;
}
.feature-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.feature-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

/* ---------- Architecture Diagram Section ---------- */
/* ============================================================
   WORKFLOW PIPELINE — Redesigned Architecture Diagram
   ============================================================ */
.workflow-wrap {
  max-width: 960px; margin: 0 auto;
  display: flex; flex-direction: column; gap: 28px;
}

/* ---- Pipeline phases ---- */
.pipeline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  position: relative;
}
.phase-group {
  padding: 28px 24px 20px;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(30,41,59,0.7), rgba(15,23,42,0.4));
  border: 1px solid var(--border-card);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  position: relative; overflow: hidden;
}
.phase-group:first-child { border-right: none; }
.phase-label {
  position: absolute; top: 10px; left: 18px;
}
.phase-label span {
  font-size: 0.62rem; font-weight: 800; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text-muted);
  background: var(--bg-glass); padding: 3px 10px;
  border-radius: 100px; border: 1px solid var(--border-card);
}
.pipeline-track {
  display: flex; flex-direction: column; align-items: center;
  gap: 0; margin-top: 16px;
}

/* ---- Pipeline step card ---- */
.pipeline-step {
  display: flex; align-items: center; gap: 14px;
  width: 100%; max-width: 340px;
  padding: 14px 16px; border-radius: var(--radius-md);
  background: var(--bg-secondary); border: 1.5px solid var(--border-card);
  transition: all 0.25s ease; cursor: default;
  position: relative;
}
.pipeline-step:hover {
  border-color: #818cf840; transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(99,102,241,0.08);
}
.pipeline-step.highlight {
  border-color: #818cf860;
  background: linear-gradient(135deg, #312e81, #1e1b4b);
  box-shadow: 0 0 32px rgba(99,102,241,0.15), inset 0 1px 0 rgba(255,255,255,0.05);
}
.pipeline-step .step-glow {
  position: absolute; inset: -1px; border-radius: inherit;
  background: linear-gradient(135deg, #818cf840, transparent, #c084fc30);
  z-index: -1; opacity: 0.6;
}
.pipeline-step.output-step {
  border-color: #34d39940;
  background: linear-gradient(135deg, #064e3b, #022c22);
}
.step-icon {
  width: 38px; height: 38px; min-width: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-glass); border: 1px solid var(--border-card);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.05rem; line-height: 1;
}
.pipeline-step.highlight .step-icon {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  border-color: transparent;
  filter: drop-shadow(0 2px 8px rgba(99,102,241,0.4));
}
.step-body { flex: 1; min-width: 0; }
.step-badge {
  display: inline-block; font-size: 0.6rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
  padding: 2px 8px; border-radius: 100px; margin-bottom: 4px;
}
.step-badge.entry { background: #0ea5e920; color: #7dd3fc; border: 1px solid #0ea5e935; }
.step-badge.core  { background: #818cf820; color: #a5b4fc; border: 1px solid #818cf835; }
.step-badge.exit  { background: #34d39920; color: #6ee7b7; border: 1px solid #34d39935; }
.step-body h4 {
  font-size: 0.82rem; font-weight: 700; color: var(--text-primary);
  margin: 0 0 2px;
}
.step-body p {
  font-size: 0.78rem; font-weight: 600; color: var(--text-secondary);
  margin: 0 0 3px;
}
.step-detail {
  display: block; font-size: 0.68rem; color: var(--text-muted);
  line-height: 1.4;
}

/* ---- Connectors between steps ---- */
.pipeline-connector {
  display: flex; align-items: center; justify-content: center;
  width: 100%; max-width: 340px; padding: 4px 0; flex-shrink: 0;
}
.conn-line {
  flex: 1; height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-card), transparent);
  position: relative;
}
.conn-dot {
  width: 8px; height: 8px; min-width: 8px; border-radius: 50%;
  background: var(--accent-2); opacity: 0.5;
  box-shadow: 0 0 8px rgba(129,140,248,0.3);
}
.connector-down {
  padding: 6px 0 0; width: calc(100% - 48px);
  justify-content: flex-end;
}
.connector-down .conn-elbow {
  width: 50%; height: 2px;
  background: linear-gradient(90deg, var(--border-card), transparent);
  position: relative;
}
.connector-down .conn-elbow::after {
  content: ''; position: absolute; right: 0; top: -5px;
  width: 2px; height: 14px;
  background: linear-gradient(180deg, var(--border-card), transparent);
  border-radius: 2px;
}

/* ---- Output Panel ---- */
.output-panel {
  background: linear-gradient(145deg, #0f172a, #1a2235);
  border: 1px solid var(--border-card); border-radius: var(--radius-lg);
  overflow: hidden;
}
.output-panel-header {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 24px; border-bottom: 1px solid var(--border-card);
  background: rgba(30,41,59,0.5);
}
.output-icon { font-size: 1.1rem; }
.output-panel-header h4 {
  font-size: 0.92rem; font-weight: 700; color: var(--text-primary); margin: 0;
}
.output-panel-header code {
  font-family: 'JetBrains Mono', monospace; font-size: 0.78rem;
  color: var(--accent-2); background: #818cf815;
  padding: 1px 8px; border-radius: 4px; margin-left: 4px;
}
.output-files-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 10px; padding: 20px 24px;
}
.of-item {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 14px 10px; border-radius: var(--radius-md);
  background: var(--bg-secondary); border: 1px solid var(--border-card);
  transition: all 0.2s ease;
}
.of-item:hover { border-color: #818cf835; transform: translateY(-2px); }
.of-wide {
  grid-column: span 2;
  flex-direction: row; justify-content: center; gap: 12px;
  text-align: left;
}
.of-icon { font-size: 1.2rem; }
.of-item span {
  font-family: 'JetBrains Mono', monospace; font-size: 0.72rem;
  font-weight: 600; color: var(--accent-2);
}
.of-item em {
  font-size: 0.65rem; color: var(--text-muted); font-style: normal;
}
.output-flow-hint {
  padding: 14px 24px 20px; text-align: center;
  border-top: 1px solid var(--border-card);
  background: rgba(30,41,59,0.25);
}
.flow-arrow-text {
  font-size: 0.75rem; color: var(--text-muted);
  display: block; margin-bottom: 10px;
}
.platform-pills {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
}
.platform-pills span {
  padding: 5px 14px; border-radius: 100px;
  font-size: 0.72rem; color: var(--text-secondary);
  background: var(--bg-glass); border: 1px solid var(--border-card);
  transition: all 0.2s ease;
}
.platform-pills span:hover {
  border-color: var(--accent-2); color: var(--accent-2);
}

/* ---- Bottom Row: Reference + Project Files ---- */
.bottom-row {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 16px;
}
.ref-panel, .proj-panel {
  background: linear-gradient(160deg, rgba(30,41,59,0.55), rgba(15,23,42,0.3));
  border: 1px solid var(--border-card); border-radius: var(--radius-lg);
  padding: 20px 22px; backdrop-filter: blur(12px);
}
.panel-title {
  font-size: 0.85rem; font-weight: 700; color: var(--text-primary);
  margin: 0 0 14px; display: flex; align-items: center; gap: 8px;
  flex-wrap: wrap;
}
.pt-icon { font-size: 1rem; }
.panel-title code {
  font-family: 'JetBrains Mono', monospace; font-size: 0.68rem;
  color: var(--text-muted); background: var(--bg-secondary);
  padding: 2px 8px; border-radius: 4px; margin-left: 2px;
}
.ref-items, .proj-items {
  display: flex; gap: 10px;
}
.ri-card, .pi-card {
  flex: 1; padding: 12px 14px; border-radius: var(--radius-md);
  text-align: center; transition: all 0.2s ease;
}
.ri-card b, .pi-card b {
  display: block; font-size: 0.74rem; font-weight: 700; margin-bottom: 4px;
  font-family: 'JetBrains Mono', monospace;
}
.ri-card span, .pi-card span {
  display: block; font-size: 0.65rem; color: var(--text-muted);
}
.ri-yellow { background: rgba(245,158,11,0.06); border: 1px solid rgba(245,158,11,0.2); }
.ri-yellow b { color: #fbbf24; }
.ri-blue   { background: rgba(56,189,248,0.06); border: 1px solid rgba(56,189,248,0.2); }
.ri-blue b   { color: #38bdf8; }
.ri-green  { background: rgba(52,211,153,0.06); border: 1px solid rgba(52,211,153,0.2); }
.ri-green b  { color: #34d399; }

.pi-card {
  background: var(--bg-secondary); border: 1px solid var(--border-card);
}
.pi-card b { color: var(--text-primary); font-size: 0.72rem; }
.ri-card:hover, .pi-card:hover { transform: translateY(-2px); }
.style-note {
  margin: 12px 0 0; font-size: 0.68rem; color: var(--text-muted);
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .pipeline { grid-template-columns: 1fr; }
  .phase-group:first-child { border-right: 1px solid var(--border-card); border-bottom: none; }
  .connector-down { display: none; }
  .output-files-grid { grid-template-columns: 1fr 1fr; }
  .of-wide { grid-column: span 2; flex-direction: column; text-align: center; }
  .bottom-row { grid-template-columns: 1fr; }
  .ref-items, .proj-items { flex-direction: column; }
}

/* ---------- Platform Badges ---------- */
.platform-grid {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
}
.platform-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: 100px;
  background: var(--bg-glass); border: 1px solid var(--border-card);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  font-size: 0.88rem; color: var(--text-secondary);
  transition: var(--transition);
}
.platform-badge:hover { border-color: var(--accent-1); color: var(--text-primary); }
.platform-badge.primary { border-color: var(--accent-1); color: var(--accent-1); background: #818cf810; }

/* ---------- Stats Bar ---------- */
.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  max-width: 900px; margin: 0 auto;
}
.stat-item {
  text-align: center; padding: 28px 16px;
  background: var(--bg-glass); border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  transition: var(--transition);
}
.stat-item:hover { border-color: #ffffff15; transform: translateY(-2px); }
.stat-number {
  font-size: 2.5rem; font-weight: 800;
  background: var(--gradient-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1.2;
}
.stat-desc { font-size: 0.82rem; color: var(--text-muted); margin-top: 4px; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0; text-align: center;
}
.footer-content { max-width: 600px; margin: 0 auto; }
.footer-links { display: flex; gap: 16px; justify-content: center; margin-bottom: 20px; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 0.88rem; transition: var(--transition); }
.footer-links a:hover { color: var(--accent-1); }
.footer-copy { font-size: 0.82rem; color: var(--text-muted); }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #ffffff15; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #ffffff25; }

/* ---------- Fade-in Animation ---------- */
.fade-in {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: 24px; }
  .hero-stat-value { font-size: 2rem; }
  .section { padding: 56px 0; }
  .timeline::before { left: 24px; }
  .timeline-badge { width: 48px; height: 48px; font-size: 1.2rem; }
  .nav-links { display: none; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 2.2rem; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stats-bar { grid-template-columns: 1fr; }
}