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

:root {
  --bg:       #080c18;
  --bg2:      #0d1225;
  --bg3:      #111827;
  --border:   rgba(255,255,255,0.07);
  --cyan:     #00d4ff;
  --cyan-dim: rgba(0,212,255,0.12);
  --amber:    #f59e0b;
  --amber-dim:rgba(245,158,11,0.12);
  --green:    #10b981;
  --green-dim:rgba(16,185,129,0.12);
  --rose:     #f43f5e;
  --rose-dim: rgba(244,63,94,0.12);
  --violet:   #8b5cf6;
  --violet-dim:rgba(139,92,246,0.12);
  --text:     #e2e8f0;
  --muted:    #64748b;
  --faint:    #1e2a3a;
  --heading:  #fff;
  --card-desc:#64748b;
  --nav-bg:   rgba(8,12,24,0.7);
  --feature-bg: linear-gradient(135deg, #0d1a30, #0d1225);
  --feature-border: rgba(0,212,255,0.15);
  --feature-glow: rgba(0,212,255,0.1);
  --card-hover-border: rgba(255,255,255,0.14);
  --card-hover-shadow: rgba(0,0,0,0.4);
  --hero-sub: #94a3b8;
}

:root[data-theme="light"] {
  --bg:       #f8fafc;
  --bg2:      #ffffff;
  --bg3:      #f1f5f9;
  --border:   rgba(0,0,0,0.1);
  --cyan:     #0891b2;
  --cyan-dim: rgba(8,145,178,0.1);
  --amber:    #d97706;
  --amber-dim:rgba(217,119,6,0.1);
  --green:    #059669;
  --green-dim:rgba(5,150,105,0.1);
  --rose:     #e11d48;
  --rose-dim: rgba(225,29,72,0.1);
  --violet:   #7c3aed;
  --violet-dim:rgba(124,58,237,0.1);
  --text:     #1e293b;
  --muted:    #64748b;
  --faint:    #e2e8f0;
  --heading:  #0f172a;
  --card-desc:#475569;
  --nav-bg:   rgba(248,250,252,0.85);
  --feature-bg: linear-gradient(135deg, #e0f2fe, #f0f9ff);
  --feature-border: rgba(8,145,178,0.2);
  --feature-glow: rgba(8,145,178,0.08);
  --card-hover-border: rgba(0,0,0,0.15);
  --card-hover-shadow: rgba(0,0,0,0.1);
  --hero-sub: #475569;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Animated background graph ── */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}

/* ── Noise overlay ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

.wrap { position: relative; z-index: 1; }

/* ── Nav ── */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  background: var(--nav-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--heading);
  text-decoration: none;
}

.logo-icon {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}

.logo span { color: var(--cyan); }

nav-links { display: flex; gap: 32px; }
.nav-pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: color 0.2s;
  cursor: pointer;
}
.nav-pill:hover { color: var(--cyan); }

.nav-badge {
  background: var(--cyan-dim);
  border: 1px solid rgba(0,212,255,0.3);
  color: var(--cyan);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  padding: 4px 12px;
  border-radius: 20px;
}

/* ── Hero ── */
.hero {
  padding: 100px 48px 80px;
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid rgba(0,212,255,0.25);
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 28px;
  animation: fadeUp 0.6s ease both;
}

.hero-eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.hero h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.04em;
  color: var(--heading);
  animation: fadeUp 0.6s 0.1s ease both;
}

.hero h1 .accent {
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  margin-top: 20px;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--hero-sub);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeUp 0.6s 0.2s ease both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 48px;
  animation: fadeUp 0.6s 0.3s ease both;
}

.stat {
  text-align: center;
}

.stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--heading);
  line-height: 1;
}

.stat-num span { color: var(--cyan); }

.stat-label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
  font-family: 'JetBrains Mono', monospace;
}

/* ── Filter bar ── */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 0 48px 48px;
  animation: fadeUp 0.6s 0.35s ease both;
}

.filter-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.73rem;
  font-weight: 500;
  padding: 7px 18px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: all 0.2s;
}

.filter-btn:hover { border-color: var(--cyan); color: var(--cyan); background: var(--cyan-dim); }
.filter-btn.active { border-color: var(--cyan); color: var(--cyan); background: var(--cyan-dim); }

/* ── Section ── */
.section {
  padding: 0 48px 80px;
  max-width: 1300px;
  margin: 0 auto;
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 28px;
}

.section-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--heading);
  letter-spacing: -0.01em;
}

.section-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

.section-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--muted);
}

/* ── Cards Grid ── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  text-decoration: none;
  display: block;
  animation: fadeUp 0.5s ease both;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--card-accent, var(--cyan));
  opacity: 0;
  transition: opacity 0.25s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--card-hover-border);
  box-shadow: 0 20px 60px var(--card-hover-shadow), 0 0 0 1px var(--card-accent, var(--cyan)), 0 0 40px -10px var(--card-accent, var(--cyan));
}

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

/* Glow blob on hover */
.card::after {
  content: '';
  position: absolute;
  width: 120px; height: 120px;
  background: var(--card-accent, var(--cyan));
  border-radius: 50%;
  opacity: 0;
  filter: blur(60px);
  top: -30px; right: -30px;
  transition: opacity 0.4s;
  pointer-events: none;
}
.card:hover::after { opacity: 0.08; }

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--card-icon-bg, var(--cyan-dim));
  border: 1px solid var(--card-icon-border, rgba(0,212,255,0.2));
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.card-badges {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 5px;
}

.badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  padding: 3px 9px;
  border-radius: 10px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.badge-available {
  background: rgba(16,185,129,0.15);
  color: var(--green);
  border: 1px solid rgba(16,185,129,0.3);
}

.badge-soon {
  background: rgba(100,116,139,0.15);
  color: var(--muted);
  border: 1px solid rgba(100,116,139,0.2);
}

.complexity-badge {
  background: var(--card-icon-bg, var(--cyan-dim));
  color: var(--card-accent, var(--cyan));
  border: 1px solid var(--card-icon-border, rgba(0,212,255,0.2));
}

.card-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--heading);
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.card-desc {
  font-size: 0.83rem;
  line-height: 1.6;
  color: var(--card-desc);
  margin-bottom: 18px;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.card-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card-arrow {
  font-size: 14px;
  color: var(--muted);
  transition: transform 0.2s, color 0.2s;
}

.card:hover .card-arrow {
  transform: translate(3px, -3px);
  color: var(--card-accent, var(--cyan));
}

.card.disabled {
  opacity: 0.5;
  cursor: default;
  pointer-events: none;
}

/* ── Coming soon overlay ── */
.card.soon {
  cursor: default;
}
.card.soon:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border);
}
.card.soon:hover::before { opacity: 0; }
.card.soon:hover::after { opacity: 0; }
.card.soon .card-arrow { display: none; }

/* ── Feature highlight ── */
.feature-card {
  background: var(--feature-bg);
  border: 1px solid var(--feature-border);
  border-radius: 16px;
  padding: 32px 36px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  margin-bottom: 48px;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, var(--feature-glow), transparent 70%);
  pointer-events: none;
}

.feature-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.85rem;
  color: var(--card-desc);
  line-height: 1.6;
  max-width: 500px;
}

.feature-btn {
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--cyan), #0099dd);
  color: #000;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 12px 24px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: opacity 0.2s, transform 0.2s;
}

.feature-btn:hover { opacity: 0.9; transform: scale(1.03); }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
}

footer a { color: var(--cyan); text-decoration: none; }

/* ── Theme toggle ── */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--muted);
  transition: border-color 0.2s, color 0.2s;
}
.theme-toggle:hover { border-color: var(--cyan); color: var(--cyan); }

/* Light mode overrides */
[data-theme="light"] #bg-canvas { display: none; }
[data-theme="light"] body::before { opacity: 0; }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.10s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.20s; }
.card:nth-child(5) { animation-delay: 0.25s; }
.card:nth-child(6) { animation-delay: 0.30s; }
.card:nth-child(7) { animation-delay: 0.35s; }
.card:nth-child(8) { animation-delay: 0.40s; }

/* ── Responsive ── */
@media (max-width: 768px) {
  nav { padding: 16px 24px; }
  .hero { padding: 60px 24px 50px; }
  .filter-bar { padding: 0 24px 40px; }
  .section { padding: 0 24px 60px; }
  .hero-stats { gap: 24px; }
  .feature-card { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 10px; text-align: center; }
}