:root {
  --bg: #0a0e17;
  --panel: #111827;
  --border: #1f2937;
  --text: #f3f4f6;
  --muted: #9ca3af;
  --accent: #22d3ee;
  --accent2: #f97316;
  --danger: #f43f5e;
  --glow: rgba(34, 211, 238, 0.15);
  --glow-danger: rgba(244, 63, 94, 0.18);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
}
.brand:hover { text-decoration: none; color: var(--text); }
.brand-icon { font-size: 28px; line-height: 1; }

.nav-links {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #0891b2);
  color: #0a0e17;
}
.btn-primary:hover { opacity: 0.92; text-decoration: none; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--panel); text-decoration: none; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.hero {
  padding: 80px 0 64px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(244, 63, 94, 0.12), transparent 55%),
              radial-gradient(ellipse at 70% 20%, rgba(34, 211, 238, 0.08), transparent 50%);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin: 12px 0 16px;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.hero p {
  font-size: 18px;
  color: var(--muted);
  max-width: 680px;
  margin: 0 auto 32px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  background: var(--glow);
  color: var(--accent);
  letter-spacing: 0.02em;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}
.feature-icon { font-size: 28px; margin-bottom: 12px; }
.feature h3 { margin: 0 0 8px; font-size: 16px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }
.feature-accent {
  border-color: rgba(244, 63, 94, 0.45);
  box-shadow: 0 0 0 1px rgba(244, 63, 94, 0.12), 0 12px 40px rgba(0, 0, 0, 0.35);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.section { padding: 64px 0; }
.section-panel {
  background: var(--panel);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 32px;
  text-align: center;
  letter-spacing: -0.01em;
}
.section-lead {
  text-align: center;
  color: var(--muted);
  max-width: 680px;
  margin: -12px auto 32px;
  font-size: 16px;
}

.step-num {
  font-size: 22px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
}

.muted { color: var(--muted); }

.code-block, pre {
  font-family: "JetBrains Mono", "Fira Code", ui-monospace, monospace;
  font-size: 13px;
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  color: #e6edf3;
  margin: 12px 0 0;
  line-height: 1.5;
  white-space: pre-wrap;
}

.arch-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 8px;
  margin: 0 0 28px;
}
.arch-node {
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  text-align: center;
  min-width: 160px;
}
.arch-node strong { display: block; font-size: 14px; }
.arch-node .muted { font-size: 12px; }
.arch-arrow {
  color: var(--accent);
  font-size: 22px;
  font-weight: 700;
}

.talk-card {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.06), 0 24px 60px rgba(0, 0, 0, 0.4);
}
.talk-card-body h3 {
  margin: 10px 0 8px;
  font-size: 22px;
  font-weight: 700;
}
.talk-card-body p { margin: 0 0 18px; }

.warn-card {
  max-width: 800px;
  margin: 0 auto;
  border-color: rgba(249, 115, 22, 0.4);
  background: linear-gradient(180deg, rgba(249, 115, 22, 0.08), var(--panel));
}
.warn-card h3 { margin-top: 0; color: var(--accent2); }

.footer {
  padding: 32px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--border);
  margin-top: 64px;
}
.footer p { margin: 6px 0; }

/* —— Coming soon —— */
.coming-soon-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.cs-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 50% 20%, rgba(244, 63, 94, 0.14), transparent 50%),
    radial-gradient(ellipse at 80% 60%, rgba(34, 211, 238, 0.08), transparent 45%),
    var(--bg);
}
.cs-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px 24px;
}
.cs-card {
  text-align: center;
  max-width: 560px;
  width: 100%;
  background: rgba(17, 24, 39, 0.75);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px 32px 36px;
  box-shadow:
    0 0 0 1px rgba(34, 211, 238, 0.06),
    0 32px 80px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(16px);
}
.cs-card h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.4rem);
  font-weight: 800;
  margin: 12px 0 14px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.cs-lead {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 24px;
  line-height: 1.6;
}
.cs-badge { margin-bottom: 4px; }
.cs-actions { margin: 28px 0 16px; }
.cs-lock-note { font-size: 12px; max-width: 400px; margin: 0 auto; }
.cs-until { font-size: 13px; margin: 14px 0 0; }
.cs-footer { margin-top: 0; border-top: none; padding-top: 8px; }

.dc-logo {
  display: block;
  width: min(240px, 70vw);
  height: auto;
  margin: 0 auto 24px;
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.45));
}
.dc-logo-inline {
  width: 140px;
  margin: 0;
  flex-shrink: 0;
}

.talk-meta {
  text-align: left;
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 28px;
}
.talk-row {
  display: flex;
  gap: 12px;
  padding: 6px 0;
  font-size: 14px;
  border-bottom: 1px solid rgba(31, 41, 55, 0.8);
}
.talk-row:last-child { border-bottom: none; }
.talk-lab {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  min-width: 56px;
  padding-top: 2px;
}
.talk-val { color: var(--text); font-weight: 500; }

.countdown {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 0 auto;
  max-width: 420px;
}
.cd-unit {
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 8px 12px;
  box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.04);
}
.cd-num {
  display: block;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: var(--accent);
  line-height: 1.1;
  font-family: ui-monospace, "JetBrains Mono", monospace;
}
.cd-lab {
  display: block;
  margin-top: 6px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.countdown.unlocked .cd-num { color: var(--accent2); }

@media (max-width: 640px) {
  .nav { padding: 12px 16px; }
  .nav-links a:not(.btn) { display: none; }
  .cs-card { padding: 28px 18px 24px; }
  .talk-card { padding: 24px 18px; justify-content: center; text-align: center; }
  .talk-card-body { width: 100%; }
  .dc-logo-inline { margin: 0 auto; }
  .arch-arrow { transform: rotate(90deg); }
}