/* ============================================================
   ECCA STACK — Cyberpunk Marketing Site
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg-primary: #05060a;
  --bg-secondary: #0a0c14;
  --bg-card: rgba(0, 220, 255, 0.03);
  --bg-card-hover: rgba(0, 220, 255, 0.07);

  --neon-cyan: #00dcff;
  --neon-magenta: #ff00e5;
  --neon-yellow: #e0ff00;
  --neon-green: #00ff88;
  --neon-orange: #ff6b00;
  --neon-purple: #a855f7;

  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --glow-cyan: 0 0 20px rgba(0, 220, 255, 0.3), 0 0 60px rgba(0, 220, 255, 0.1);
  --glow-magenta: 0 0 20px rgba(255, 0, 229, 0.3), 0 0 60px rgba(255, 0, 229, 0.1);
  --glow-green: 0 0 20px rgba(0, 255, 136, 0.3);

  --border-subtle: rgba(0, 220, 255, 0.12);
  --border-glow: rgba(0, 220, 255, 0.3);

  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-display: 'Orbitron', 'Rajdhani', sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;

  --transition-fast: 0.15s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.6s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: var(--neon-cyan);
  border-radius: 3px;
}

::selection {
  background: rgba(0, 220, 255, 0.25);
  color: #fff;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.25rem; }

a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: var(--transition-fast);
}
a:hover {
  color: #fff;
  text-shadow: var(--glow-cyan);
}

code, pre {
  font-family: var(--font-mono);
}

code {
  background: rgba(0, 220, 255, 0.08);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.88em;
  color: var(--neon-cyan);
}

pre {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 1.5rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
}

pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
}

/* --- Layout --- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-narrow {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0;
  position: relative;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--neon-cyan);
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  margin-bottom: 1.5rem;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin-bottom: 3rem;
}

/* --- Animated Background --- */
#bg-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
}

.bg-grid {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 220, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 220, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.bg-gradient-top {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 60vh;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 0%, rgba(0, 220, 255, 0.08) 0%, transparent 60%);
}

.content-wrapper {
  position: relative;
  z-index: 1;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition-medium);
  backdrop-filter: blur(0px);
}

.nav.scrolled {
  background: rgba(5, 6, 10, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.6rem 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: #fff;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  border: 2px solid var(--neon-cyan);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
  position: relative;
  overflow: hidden;
}

.nav-logo .logo-icon::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,220,255,0.15), transparent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  transition: var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--neon-cyan);
  text-shadow: 0 0 10px rgba(0, 220, 255, 0.3);
}

.nav-cta {
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--neon-cyan);
  border-radius: 6px;
  color: var(--neon-cyan) !important;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: var(--transition-medium);
}

.nav-cta:hover {
  background: var(--neon-cyan);
  color: var(--bg-primary) !important;
  box-shadow: var(--glow-cyan);
  text-shadow: none !important;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--neon-cyan);
  margin: 5px 0;
  transition: var(--transition-fast);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
  position: relative;
}

.hero-content {
  max-width: 800px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-cyan);
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
  background: rgba(0, 220, 255, 0.04);
}

.hero-tag .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff 0%, var(--neon-cyan) 50%, var(--neon-magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.hero-stat {
  text-align: left;
}

.hero-stat .value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--neon-cyan);
}

.hero-stat .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-visual {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  opacity: 0.15;
  pointer-events: none;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  border: none;
  transition: var(--transition-medium);
  text-transform: uppercase;
}

.btn-primary {
  background: linear-gradient(135deg, var(--neon-cyan), #0090a8);
  color: var(--bg-primary);
  box-shadow: 0 0 20px rgba(0, 220, 255, 0.2);
}

.btn-primary:hover {
  box-shadow: 0 0 40px rgba(0, 220, 255, 0.4);
  transform: translateY(-2px);
  color: var(--bg-primary);
  text-shadow: none;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-glow);
  color: var(--neon-cyan);
}

.btn-outline:hover {
  background: rgba(0, 220, 255, 0.08);
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 0.85rem 1.5rem;
}

.btn-ghost:hover {
  color: var(--neon-cyan);
}

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
  opacity: 0;
  transition: var(--transition-medium);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 220, 255, 0.08);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  font-size: 1.4rem;
  border: 1px solid;
}

.card-icon.cyan {
  border-color: rgba(0, 220, 255, 0.3);
  color: var(--neon-cyan);
  background: rgba(0, 220, 255, 0.08);
}

.card-icon.magenta {
  border-color: rgba(255, 0, 229, 0.3);
  color: var(--neon-magenta);
  background: rgba(255, 0, 229, 0.08);
}

.card-icon.green {
  border-color: rgba(0, 255, 136, 0.3);
  color: var(--neon-green);
  background: rgba(0, 255, 136, 0.08);
}

.card-icon.yellow {
  border-color: rgba(224, 255, 0, 0.3);
  color: var(--neon-yellow);
  background: rgba(224, 255, 0, 0.08);
}

.card-icon.purple {
  border-color: rgba(168, 85, 247, 0.3);
  color: var(--neon-purple);
  background: rgba(168, 85, 247, 0.08);
}

.card-icon.orange {
  border-color: rgba(255, 107, 0, 0.3);
  color: var(--neon-orange);
  background: rgba(255, 107, 0, 0.08);
}

.card h3 {
  margin-bottom: 0.8rem;
  font-size: 1.15rem;
}

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

/* --- Grid Layouts --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

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

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

/* --- Feature Section --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}

/* --- Problem/Solution --- */
.problem-solution {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.problem-list, .solution-list {
  list-style: none;
}

.problem-list li, .solution-list li {
  padding: 1rem 0;
  padding-left: 2rem;
  position: relative;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.problem-list li::before {
  content: '✕';
  position: absolute;
  left: 0;
  color: #ff4444;
  font-weight: bold;
}

.solution-list li::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: var(--neon-cyan);
}

/* --- How It Works --- */
.flow-diagram {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.flow-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  align-items: start;
  padding: 2rem 0;
  position: relative;
}

.flow-step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid var(--neon-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--neon-cyan);
  background: var(--bg-primary);
  z-index: 2;
  position: relative;
}

.flow-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 39px;
  top: 72px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--neon-cyan), transparent);
  z-index: 1;
}

.flow-step-content h4 {
  color: #fff;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
}

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

/* --- Token Cards --- */
.token-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.token-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.8rem;
  text-align: center;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.token-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
}

.token-card .token-symbol {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 0.5rem;
  display: block;
}

.token-card .token-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  color: #fff;
}

.token-card .token-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.token-card.compute .token-symbol { color: var(--neon-cyan); }
.token-card.memory .token-symbol { color: var(--neon-magenta); }
.token-card.sync .token-symbol { color: var(--neon-green); }
.token-card.routing .token-symbol { color: var(--neon-yellow); }
.token-card.residue .token-symbol { color: var(--neon-orange); }

/* --- Architecture Diagram --- */
.arch-layers {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.arch-layer {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  transition: var(--transition-medium);
}

.arch-layer:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.arch-layer-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--neon-cyan);
  min-width: 60px;
  padding: 0.3rem 0.6rem;
  border: 1px solid rgba(0,220,255,0.2);
  border-radius: 4px;
  text-align: center;
  white-space: nowrap;
}

.arch-layer-content {
  flex: 1;
}

.arch-layer-content h4 {
  font-size: 1rem;
  margin-bottom: 0.3rem;
}

.arch-layer-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.arch-chains {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 0.5rem;
}

.arch-chain {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 1.2rem;
  text-align: center;
}

.arch-chain h5 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.arch-chain p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.arch-chain.medulla { border-color: rgba(0, 255, 136, 0.2); }
.arch-chain.medulla h5 { color: var(--neon-green); }

.arch-chain.hippocampus { border-color: rgba(255, 0, 229, 0.2); }
.arch-chain.hippocampus h5 { color: var(--neon-magenta); }

.arch-chain.cortex { border-color: rgba(0, 220, 255, 0.2); }
.arch-chain.cortex h5 { color: var(--neon-cyan); }

/* --- Roadmap --- */
.roadmap {
  position: relative;
  padding-left: 3rem;
}

.roadmap::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom,
    var(--neon-cyan),
    var(--neon-magenta),
    var(--neon-purple),
    var(--text-muted));
}

.roadmap-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 2rem;
}

.roadmap-item::before {
  content: '';
  position: absolute;
  left: -2.35rem;
  top: 0.4rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--neon-cyan);
  background: var(--bg-primary);
}

.roadmap-item.completed::before {
  background: var(--neon-cyan);
  box-shadow: 0 0 12px var(--neon-cyan);
}

.roadmap-item.active::before {
  border-color: var(--neon-magenta);
  background: var(--neon-magenta);
  box-shadow: 0 0 12px var(--neon-magenta);
  animation: pulse 2s infinite;
}

.roadmap-item.future::before {
  border-color: var(--text-muted);
}

.roadmap-phase {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--neon-cyan);
  margin-bottom: 0.3rem;
}

.roadmap-item.active .roadmap-phase {
  color: var(--neon-magenta);
}

.roadmap-item.future .roadmap-phase {
  color: var(--text-muted);
}

.roadmap-item h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.roadmap-item p {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.roadmap-item .roadmap-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.8rem;
}

.roadmap-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  color: var(--text-muted);
}

/* --- Audience Tabs --- */
.audience-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 3rem;
}

.audience-tab {
  padding: 1rem 2rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition-fast);
}

.audience-tab:hover {
  color: var(--text-secondary);
}

.audience-tab.active {
  color: var(--neon-cyan);
  border-bottom-color: var(--neon-cyan);
}

.audience-content {
  display: none;
}

.audience-content.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Comparison Table --- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.comparison-table thead th {
  font-family: var(--font-display);
  text-align: left;
  padding: 1rem;
  border-bottom: 2px solid var(--border-subtle);
  color: var(--neon-cyan);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

.comparison-table tbody td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  color: var(--text-secondary);
}

.comparison-table tbody tr:hover td {
  background: rgba(0, 220, 255, 0.03);
}

.comparison-table .check {
  color: var(--neon-green);
  font-weight: bold;
}

.comparison-table .cross {
  color: #ff4444;
}

.comparison-table .partial {
  color: var(--neon-yellow);
}

/* --- Stats Bar --- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  padding: 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
}

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

.stat-item .stat-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--neon-cyan);
  line-height: 1;
}

.stat-item .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 0.4rem;
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: 8rem 0;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(0, 220, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section h2 {
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--text-secondary);
  font-size: 1.15rem;
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

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

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- Glitch Text Effect --- */
.glitch {
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
}

.glitch::before {
  left: 2px;
  text-shadow: -2px 0 var(--neon-magenta);
  clip-path: inset(0 0 0 0);
  animation: glitch-1 3s infinite linear alternate-reverse;
}

.glitch::after {
  left: -2px;
  text-shadow: 2px 0 var(--neon-cyan);
  clip-path: inset(0 0 0 0);
  animation: glitch-2 3s infinite linear alternate-reverse;
}

@keyframes glitch-1 {
  0% { clip-path: inset(40% 0 61% 0); }
  20% { clip-path: inset(92% 0 1% 0); }
  40% { clip-path: inset(43% 0 1% 0); }
  60% { clip-path: inset(25% 0 58% 0); }
  80% { clip-path: inset(54% 0 7% 0); }
  100% { clip-path: inset(58% 0 43% 0); }
}

@keyframes glitch-2 {
  0% { clip-path: inset(65% 0 13% 0); }
  20% { clip-path: inset(79% 0 2% 0); }
  40% { clip-path: inset(2% 0 78% 0); }
  60% { clip-path: inset(48% 0 38% 0); }
  80% { clip-path: inset(10% 0 72% 0); }
  100% { clip-path: inset(32% 0 55% 0); }
}

/* --- Neon Line Divider --- */
.neon-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), var(--neon-magenta), transparent);
  border: none;
  margin: 4rem 0;
  opacity: 0.5;
}

/* --- Scroll Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Tag / Badge --- */
.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  border: 1px solid;
}

.badge-cyan {
  color: var(--neon-cyan);
  border-color: rgba(0,220,255,0.3);
  background: rgba(0,220,255,0.08);
}

.badge-magenta {
  color: var(--neon-magenta);
  border-color: rgba(255,0,229,0.3);
  background: rgba(255,0,229,0.08);
}

.badge-green {
  color: var(--neon-green);
  border-color: rgba(0,255,136,0.3);
  background: rgba(0,255,136,0.08);
}

/* --- Docs Page Specific --- */
.docs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 3rem;
  padding-top: 6rem;
  min-height: 100vh;
}

.docs-sidebar {
  position: sticky;
  top: 5rem;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
  padding-right: 1rem;
}

.docs-sidebar-section {
  margin-bottom: 2rem;
}

.docs-sidebar-section h4 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
  padding-left: 0.5rem;
}

.docs-sidebar-section ul {
  list-style: none;
}

.docs-sidebar-section li a {
  display: block;
  padding: 0.4rem 0.8rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: var(--transition-fast);
}

.docs-sidebar-section li a:hover {
  color: var(--neon-cyan);
  background: rgba(0, 220, 255, 0.04);
  border-left-color: rgba(0, 220, 255, 0.3);
  text-shadow: none;
}

.docs-sidebar-section li a.active {
  color: var(--neon-cyan);
  background: rgba(0, 220, 255, 0.06);
  border-left-color: var(--neon-cyan);
}

.docs-content {
  max-width: 800px;
}

.docs-content h2 {
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.docs-content h2:first-child {
  margin-top: 0;
}

.docs-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.8rem;
}

.docs-content p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.docs-content ul, .docs-content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.docs-content li {
  margin-bottom: 0.4rem;
}

.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.88rem;
}

.docs-content table th {
  text-align: left;
  padding: 0.7rem 1rem;
  border-bottom: 2px solid var(--border-subtle);
  color: var(--neon-cyan);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
}

.docs-content table td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  color: var(--text-secondary);
}

.docs-content table tbody tr:hover td {
  background: rgba(0, 220, 255, 0.03);
}

/* --- Callout Box --- */
.callout {
  padding: 1.2rem 1.5rem;
  border-radius: 8px;
  margin: 1.5rem 0;
  border-left: 3px solid;
  font-size: 0.9rem;
}

.callout-info {
  background: rgba(0, 220, 255, 0.05);
  border-left-color: var(--neon-cyan);
}

.callout-warn {
  background: rgba(224, 255, 0, 0.05);
  border-left-color: var(--neon-yellow);
}

.callout-key {
  background: rgba(255, 0, 229, 0.05);
  border-left-color: var(--neon-magenta);
}

.callout strong {
  color: #fff;
}

/* --- Equation Block --- */
.equation-block {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 1.5rem 2rem;
  margin: 1.5rem 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--neon-cyan);
  overflow-x: auto;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .problem-solution { grid-template-columns: 1fr; gap: 2rem; }
  .arch-chains { grid-template-columns: 1fr; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { display: none; }
}

@media (max-width: 768px) {
  section { padding: 4rem 0; }
  .container { padding: 0 1.2rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 1.5rem; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .flow-step { grid-template-columns: 50px 1fr; gap: 1rem; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .arch-layer { flex-direction: column; text-align: center; }
  .token-grid { grid-template-columns: repeat(2, 1fr); }

  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(5, 6, 10, 0.95);
    backdrop-filter: blur(20px);
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-subtle);
  }

  .comparison-table {
    font-size: 0.75rem;
  }
  .comparison-table th, .comparison-table td {
    padding: 0.5rem;
  }
}

@media (max-width: 480px) {
  .token-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr; }
}

/* --- Floating Particles (decorative) --- */
.particle {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  animation: float-up linear infinite;
}

@keyframes float-up {
  0% {
    opacity: 0;
    transform: translateY(100vh) scale(0);
  }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% {
    opacity: 0;
    transform: translateY(-20vh) scale(1);
  }
}

/* --- Typing effect --- */
.typing-cursor::after {
  content: '|';
  animation: blink 1s step-end infinite;
  color: var(--neon-cyan);
}

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

/* --- Marquee-style info bar --- */
.info-bar {
  background: rgba(0, 220, 255, 0.04);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.6rem 0;
  overflow: hidden;
  white-space: nowrap;
}

.info-bar-content {
  display: inline-flex;
  gap: 3rem;
  animation: scroll-left 30s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.info-bar-content span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.info-bar-content .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--neon-cyan);
}

@keyframes scroll-left {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}