:root {
  color-scheme: dark;
  --bg: #071018;
  --fg: #e7f4ff;
  --muted: #8aa3b8;
  --line: rgba(231, 244, 255, 0.12);
  --accent: #3ee0c5;
  --ink: #04221c;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(62, 224, 197, 0.06), transparent 22rem),
    repeating-linear-gradient(90deg, transparent, transparent 47px, rgba(62, 224, 197, 0.04) 48px),
    var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

a { color: inherit; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.mast {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  background: rgba(7, 16, 24, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand { font-weight: 780; letter-spacing: -0.03em; }
nav { display: flex; gap: 18px; font-size: 14px; color: var(--muted); }
.maturity {
  margin: 0;
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

main { width: min(1100px, calc(100% - 40px)); margin: 0 auto; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.8fr);
  gap: 48px;
  align-items: center;
  padding: 72px 0 56px;
}

.eyebrow {
  color: var(--accent);
  font-size: 12px;
  font-weight: 780;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1, h2 { letter-spacing: -0.03em; }
h1 {
  margin: 14px 0 0;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.05;
}
h2 { margin: 0 0 12px; font-size: clamp(24px, 3vw, 32px); }
section { padding: 28px 0 48px; border-top: 1px solid var(--line); }

.lede, section p { color: var(--muted); line-height: 1.65; max-width: 44rem; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }

.btn, button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 4px;
  text-decoration: none;
  font-weight: 700;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.btn.primary, button[type="submit"] {
  background: var(--accent);
  color: var(--ink);
  border-color: var(--accent);
}

.board {
  border: 1px solid var(--line);
  background: #0b1a24;
  box-shadow: 12px 12px 0 rgba(62, 224, 197, 0.12);
}
.board-top, .split div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.split { margin: 0; }
.split dt { font-weight: 700; text-transform: none; letter-spacing: 0; font-size: 14px; }
.split dd { margin: 0; color: var(--accent); }
.board-note, .status, footer {
  margin: 0;
  padding: 12px 14px;
  color: var(--muted);
  font-size: 13px;
}

.facts { padding-left: 1.1rem; color: var(--muted); line-height: 1.7; }
.router, .request {
  display: grid;
  gap: 12px;
  max-width: 32rem;
  margin-top: 18px;
}
label { display: grid; gap: 6px; font-size: 13px; font-weight: 700; }
input, select, textarea {
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: #0b1a24;
  color: var(--fg);
  font: inherit;
}
pre {
  margin-top: 16px;
  padding: 14px;
  background: #041018;
  border: 1px solid var(--line);
  overflow-x: auto;
  white-space: pre-wrap;
}

footer { border-top: 1px solid var(--line); }

@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; padding-top: 40px; }
  nav { display: none; }
}