/* D1R site — design tokens + components */

:root {
  --bg: #0b0e14;
  --surface: #10131c;
  --surface-2: #171a23;
  --border: #242a36;
  --text: #e6e6e6;
  --muted: #9aa0ac;
  --accent: #0af;
  --accent-strong: #22b5ff;
  --ok: #3fb950;
  --err: #f85149;
  --warn: #d29922;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

/* ---------- nav ---------- */

nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 14px 28px;
  background: rgba(11, 14, 20, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

nav .brand {
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--accent);
  letter-spacing: 0.01em;
}

nav a { color: var(--muted); font-size: 0.95rem; }
nav a:hover { color: var(--text); }
nav a.current { color: var(--text); font-weight: 600; }

nav .spacer { flex: 1; }

/* ---------- layout ---------- */

.container { max-width: 880px; margin: 0 auto; padding: 40px 24px 80px; }

section.block {
  margin: 0 auto 28px;
  padding: 26px 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
}

/* ---------- hero ---------- */

.hero {
  text-align: center;
  padding: 84px 24px 56px;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -40% 20% 0;
  background: radial-gradient(ellipse 60% 50% at 50% 30%, rgba(0, 170, 255, 0.14), transparent 70%);
  pointer-events: none;
}

.hero h1 {
  font-size: 4.2rem;
  margin: 0;
  letter-spacing: -0.03em;
  background: linear-gradient(180deg, #fff 40%, #9cc9e8);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero .subtitle {
  font-size: 1.35rem;
  color: var(--accent-strong);
  margin: 8px 0 4px;
  font-weight: 600;
}

.hero .tagline { color: var(--muted); font-size: 1.05rem; margin: 8px 0 28px; }

.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- buttons ---------- */

.button {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 8px;
  font-weight: 600;
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  font-size: 0.95rem;
}

.button:hover { color: #fff; border-color: #3a4358; }

.button.primary { background: var(--accent); border-color: transparent; color: #00121f; }
.button.primary:hover { background: var(--accent-strong); }

/* ---------- live relay card ---------- */

.relay-card {
  max-width: 680px;
  margin: 0 auto 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.relay-card .titlebar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.relay-card .titlebar .dots { display: flex; gap: 6px; }
.relay-card .titlebar .dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.relay-card .titlebar .dots i:first-child { background: var(--err); }
.relay-card .titlebar .dots i:nth-child(2) { background: var(--warn); }
.relay-card .titlebar .dots i:last-child { background: var(--ok); }

.relay-card .titlebar .title { flex: 1; text-align: center; }

.relay-card .body { padding: 20px 22px; }

.relay-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--border);
  font-family: var(--mono);
  font-size: 13px;
}

.relay-row:last-of-type { border-bottom: none; }

.relay-row .label { color: var(--muted); width: 84px; flex-shrink: 0; }
.relay-row .url { flex: 1; word-break: break-all; color: var(--text); }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
  margin-top: 4px;
}

.status-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.status-pill.online .dot { background: var(--ok); }
.status-pill.down .dot { background: var(--err); }
.status-pill.online { color: var(--text); }

/* ---------- feature cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}

.card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
}

.card h3 { margin: 0 0 8px; color: var(--accent-strong); font-size: 1rem; }
.card p { margin: 0; font-size: 0.9rem; color: var(--muted); }

/* ---------- headings / text ---------- */

h2.section-title {
  font-size: 1.15rem;
  color: #fff;
  margin: 0 0 16px;
}

footer.site-footer {
  text-align: center;
  color: var(--muted);
  padding: 40px 20px 60px;
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

footer.site-footer .accent { color: var(--accent); }

/* ---------- docs ---------- */

.docs-layout { display: flex; gap: 32px; align-items: flex-start; }

.docs-content { flex: 1; min-width: 0; }

.toc {
  width: 210px;
  flex-shrink: 0;
  position: sticky;
  top: 76px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  padding: 6px 0;
}

.toc .toc-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 10px;
}

.toc a {
  display: block;
  padding: 5px 0 5px 10px;
  border-left: 2px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 2px;
}

.toc a:hover { color: var(--text); }
.toc a.active { color: var(--accent-strong); border-left-color: var(--accent); }

.docs-content h1 { color: #fff; margin-top: 0; font-size: 1.8rem; }
.docs-content h2 {
  color: var(--accent-strong);
  font-size: 1.2rem;
  margin: 44px 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 80px;
}
.docs-content h3 { color: #fff; font-size: 1rem; margin: 26px 0 8px; }
.docs-content p, .docs-content li { color: #d7dbe2; font-size: 0.95rem; }
.docs-content ul, .docs-content ol { padding-left: 22px; }

code {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 5px;
  font-family: var(--mono);
  font-size: 0.86em;
  word-break: break-word;
}

pre {
  position: relative;
  background: #070a10;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
  margin: 14px 0;
}

pre code { background: transparent; border: none; padding: 0; }

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 3px 10px;
  font-size: 11px;
  font-family: var(--mono);
  cursor: pointer;
}

.copy-btn:hover { color: var(--text); border-color: var(--accent); }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 0.88rem;
}

th, td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
}

th { background: var(--surface-2); color: #fff; }

/* ---------- responsive ---------- */

@media (max-width: 760px) {
  .toc { display: none; }
  nav { gap: 14px; padding: 12px 16px; }
  .hero { padding: 60px 16px 40px; }
  .hero h1 { font-size: 3rem; }
  .container { padding: 24px 14px 60px; }
  section.block { padding: 20px 18px; }
}