/*
  Design tokens — "build manifest" direction.
  See AGENTS.md > Design system before changing any of these.
*/
:root {
  --canvas: #10151c;
  --panel: #171e27;
  --panel-raised: #1d2531;
  --ink: #e8edf3;
  --ink-muted: #8ca0b3;
  --rule: #263140;
  --blueprint: #5b8def;
  --blueprint-dim: #375b96;
  --amber: #e3a857;

  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --radius: 3px;
  --wrap: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.mono { font-family: var(--font-mono); }
.small { font-size: 0.82rem; }
.muted { color: var(--ink-muted); }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--blueprint);
  font-size: 0.78rem;
  margin: 0 0 14px;
}

a { color: var(--blueprint); }
a:hover { color: var(--amber); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--amber);
  color: var(--canvas);
  padding: 8px 14px;
  z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(16, 21, 28, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--rule);
}
.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.wordmark {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  font-size: 1rem;
}
.wordmark:hover { color: var(--ink); }
.wordmark__prompt { color: var(--amber); margin-right: 8px; }
.site-nav { display: flex; gap: 24px; font-family: var(--font-mono); font-size: 0.88rem; }
.site-nav a { text-decoration: none; color: var(--ink-muted); }
.site-nav a:hover { color: var(--blueprint); }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 40px; border-bottom: 1px solid var(--rule); }
.hero h1 {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  line-height: 1.3;
  margin: 0 0 20px;
  max-width: 18ch;
}
.hero__lede { max-width: 62ch; color: var(--ink-muted); font-size: 1.05rem; }
.hero__actions { display: flex; gap: 12px; margin: 28px 0 36px; flex-wrap: wrap; }

.btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--rule);
  padding: 10px 18px;
  border-radius: var(--radius);
  transition: border-color 0.15s ease, color 0.15s ease;
}
.btn:hover { border-color: var(--blueprint); color: var(--blueprint); }
.btn--primary { background: var(--blueprint); border-color: var(--blueprint); color: var(--canvas); font-weight: 500; }
.btn--primary:hover { background: var(--amber); border-color: var(--amber); color: var(--canvas); }

/* Build-log ticker: the signature element */
.ticker {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 14px 18px;
  max-width: 56ch;
  overflow: hidden;
  height: 4.6em;
}
.ticker__lines { list-style: none; margin: 0; padding: 0; }
.ticker__lines li {
  color: var(--ink-muted);
  padding: 2px 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ticker__target { color: var(--ink); }
.ticker__dots { color: var(--ink-muted); }
.ticker__ok { color: var(--amber); margin-left: 8px; }

@media (prefers-reduced-motion: no-preference) {
  .ticker__lines {
    animation: ticker-scroll 14s linear infinite;
  }
  .ticker:hover .ticker__lines { animation-play-state: paused; }
}
@keyframes ticker-scroll {
  0%   { transform: translateY(0); }
  90%  { transform: translateY(calc(-1 * (var(--ticker-h, 8) * 1.6em))); }
  100% { transform: translateY(calc(-1 * (var(--ticker-h, 8) * 1.6em))); }
}

.manifest-line { margin-top: 22px; color: var(--ink-muted); }
.manifest-line .ok { color: var(--amber); }

/* ---------- Filter bar ---------- */
.filter-bar { padding: 28px 0; border-bottom: 1px solid var(--rule); }
.filter-bar__chips { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--panel);
  border: 1px solid var(--rule);
  color: var(--ink-muted);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
}
button.chip:hover { border-color: var(--blueprint); color: var(--blueprint); }
button.chip.is-active { background: var(--blueprint); border-color: var(--blueprint); color: var(--canvas); }
.chip--tag { cursor: default; }
.chip--tag:hover { border-color: var(--rule); color: var(--ink-muted); }

/* ---------- Modules ---------- */
.modules { padding: 56px 0 20px; }
.module { margin-bottom: 64px; }
.module__head { display: flex; gap: 18px; align-items: baseline; margin-bottom: 24px; }
.module__number {
  color: var(--amber);
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 2px 8px;
  flex: 0 0 auto;
}
.module h2 { font-family: var(--font-mono); font-size: 1.2rem; margin: 0 0 6px; }
.module__blurb { color: var(--ink-muted); margin: 0; max-width: 68ch; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 16px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--blueprint-dim); transform: translateY(-2px); }
.card--highlight { border-color: var(--amber); }
.card__head { display: flex; justify-content: space-between; align-items: start; gap: 8px; }
.card h3 { margin: 0; font-size: 1rem; font-family: var(--font-mono); }
.card h3 a { text-decoration: none; }
.card h3 a:hover { color: var(--blueprint); text-decoration: underline; }
.card__desc { color: var(--ink-muted); font-size: 0.92rem; margin: 0; flex-grow: 1; }
.badge {
  font-size: 0.68rem;
  color: var(--amber);
  border: 1px solid var(--amber);
  border-radius: 999px;
  padding: 2px 8px;
  white-space: nowrap;
}
.card__stack { display: flex; flex-wrap: wrap; gap: 6px; }
.card__owner { margin: 0; }

.card.is-hidden { display: none; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--rule); padding: 48px 0 60px; }
.site-footer__row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
}
.link-list { list-style: none; padding: 0; margin: 12px 0 0; }
.link-list li { margin-bottom: 6px; }

@media (max-width: 720px) {
  .site-footer__row { grid-template-columns: 1fr; }
  .site-nav { gap: 14px; }
  .hero { padding: 48px 0 32px; }
}