/* Arbiter: Project Site
   Dark mode, aligned with Furo (Sphinx theme) design tokens.
   Light, fast, honest. No frameworks, no build step. */

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
    sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  color: #cfd0d0;
  background: #131416;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Skip Link ─────────────────────────────────────────────── */

.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: #3d94ff;
  color: #fff;
  padding: 8px 16px;
  z-index: 1000;
  font-size: 0.875rem;
  text-decoration: none;
}
.skip-link:focus { top: 0; }

/* ── Layout ────────────────────────────────────────────────── */

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navigation ────────────────────────────────────────────── */

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(19, 20, 22, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #303335;
  padding: 12px 0;
}
nav .inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
nav .logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: #cfd0d0;
  text-decoration: none;
}
nav .logo:hover { color: #cfd0d0; text-decoration: none; }
nav .links {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}
nav .links a {
  color: #9ca0a5;
  font-size: 0.875rem;
  text-decoration: none;
}
nav .links a:hover { color: #cfd0d0; }
nav .links .sponsor {
  color: #3d94ff;
  font-weight: 600;
}

/* ── Typography ────────────────────────────────────────────── */

h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 4px;
  line-height: 1.3;
  color: #cfd0d0;
}
h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 6px;
  border-bottom: 1px solid #303335;
  color: #cfd0d0;
}
h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 8px;
  color: #cfd0d0;
}
p {
  color: #9ca0a5;
  margin-bottom: 16px;
}
.tagline {
  font-size: 1.1rem;
  color: #9ca0a5;
  margin-bottom: 20px;
}
a {
  color: #5ca5ff;
  text-decoration: none;
}
a:hover { text-decoration: underline; }

/* ── Info Strip ────────────────────────────────────────────── */

.info-strip {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: #81868d;
  margin-bottom: 24px;
  padding: 10px 0;
  border-top: 1px solid #303335;
  border-bottom: 1px solid #303335;
}

/* ── Code Blocks ───────────────────────────────────────────── */

pre {
  background: #1a1c1e;
  border: 1px solid #303335;
  border-radius: 4px;
  padding: 16px 20px;
  overflow-x: auto;
  font-family: "SFMono-Regular", Menlo, Consolas, Monaco, "Liberation Mono",
    "Lucida Console", monospace;
  font-size: 0.85rem;
  line-height: 1.65;
  color: #cfd0d0;
  margin-bottom: 16px;
}
code {
  font-family: "SFMono-Regular", Menlo, Consolas, Monaco, "Liberation Mono",
    "Lucida Console", monospace;
  font-size: 0.85rem;
  background: #1a1c1e;
  padding: 1px 5px;
  border-radius: 3px;
}

/* ── Doc Links ─────────────────────────────────────────────── */

.doc-links {
  list-style: none;
  margin-bottom: 16px;
}
.doc-links li {
  padding: 6px 0;
  line-height: 1.5;
}
.doc-links a {
  font-weight: 500;
}
.doc-links .desc {
  color: #81868d;
  font-size: 0.875rem;
}

/* ── Pipeline List ─────────────────────────────────────────── */

main ol {
  padding-left: 20px;
  margin-bottom: 16px;
}
main ol li {
  padding: 3px 0;
  color: #9ca0a5;
}
main ol li strong {
  color: #cfd0d0;
}

/* ── Footer ────────────────────────────────────────────────── */

footer {
  border-top: 1px solid #303335;
  margin-top: 48px;
  padding: 20px 0;
  font-size: 0.8rem;
  color: #81868d;
  text-align: center;
}
footer a { color: #5ca5ff; }

/* ── Responsive ────────────────────────────────────────────── */

@media (max-width: 480px) {
  h1 { font-size: 1.5rem; }
  .info-strip { gap: 12px; }
}

/* ── Accessibility ─────────────────────────────────────────── */

:focus-visible {
  outline: 2px solid #3d94ff;
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; }
}