:root {
  --bg: #0c1118;
  --bg-elev: #141c27;
  --bg-soft: #1a2433;
  --line: #2a384c;
  --text: #e8eef7;
  --muted: #8b9bb0;
  --accent: #3dffe0;
  --accent-dim: #1aa992;
  --warn: #ffb020;
  --danger: #ff5c6c;
  --ok: #5dff9f;
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 4px;
  --max: 1120px;
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  min-height: 100%;
}

body {
  background-image:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(61, 255, 224, 0.08), transparent 55%),
    linear-gradient(180deg, #0c1118 0%, #0a0e14 100%);
}

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

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
  margin-bottom: 2rem;
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(12, 17, 24, 0.92);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}

.brand span { color: var(--accent); }

.nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover, .nav a.active { color: var(--accent); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h2 { font-size: 1.35rem; margin-top: 2rem; }
h3 { font-size: 1.05rem; color: var(--accent); }

.lede {
  color: var(--muted);
  max-width: 42rem;
  margin-bottom: 1.5rem;
}

.panel {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
  margin-bottom: 1rem;
}

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}

.stat .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.stat .value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  margin-top: 0.35rem;
  color: var(--accent);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 0.65rem 0.5rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  border-radius: 2px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--muted);
}

.badge.ok { color: var(--ok); border-color: rgba(93, 255, 159, 0.35); }
.badge.warn { color: var(--warn); border-color: rgba(255, 176, 32, 0.35); }
.badge.danger { color: var(--danger); border-color: rgba(255, 92, 108, 0.35); }
.badge.accent { color: var(--accent); border-color: rgba(61, 255, 224, 0.35); }

.mono { font-family: var(--font-mono); font-size: 0.85rem; }
.muted { color: var(--muted); }

.legal {
  max-width: 48rem;
}

.legal p, .legal li { color: var(--muted); }
.legal strong, .legal h2, .legal h3 { color: var(--text); }
.legal ul { padding-left: 1.2rem; }

.bubble {
  max-width: 28rem;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  padding: 0.85rem 1rem;
  margin: 0.75rem 0;
  white-space: pre-wrap;
  font-size: 0.92rem;
}

.flow {
  display: grid;
  gap: 0.75rem;
}

.flow-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  padding: 0.85rem;
  background: var(--bg-elev);
  border: 1px solid var(--line);
}

.flow-num {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.85rem;
  min-width: 2rem;
}

.site-footer {
  margin-top: 3rem;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.btn {
  display: inline-block;
  padding: 0.55rem 1rem;
  background: var(--accent);
  color: #04120f;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.9rem;
}

.btn:hover { text-decoration: none; filter: brightness(1.05); }

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--line);
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}