/* Cleared to Know — The Library.
   Tokens (all text pairings ≥4.5:1): deep flight #0B1D33 · schematic #7FA8D9 ·
   paper white #F2EFE6 · runway amber #FFB23E · drafting paper #F5F1E6 ·
   blueprint ink #163A66 · ink text #172A41 · amber ink #A24D00.
   Rules: amber ≤10% of any composition; schematic is never body-text on paper. */

:root {
  --deep: #0B1D33;
  --schematic: #7FA8D9;
  --paper: #F2EFE6;
  --amber: #FFB23E;
  --drafting: #F5F1E6;
  --blueprint: #163A66;
  --ink: #172A41;
  --amber-ink: #A24D00;
  --rule: rgba(22, 58, 102, 0.22);
  --mono: "SF Mono", ui-monospace, "Cascadia Mono", Menlo, Consolas, monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--drafting);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.65;
}
.mono { font-family: var(--mono); letter-spacing: 0.04em; }
a { color: var(--blueprint); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--amber-ink); }
img { max-width: 100%; }

/* ---------- chrome ---------- */
.topbar {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem;
  align-items: baseline; justify-content: space-between;
  padding: 0.9rem clamp(1rem, 4vw, 2.5rem);
  background: var(--deep);
}
.brand { color: var(--paper); text-decoration: none; font-family: var(--sans); font-weight: 650; }
.brand-mark {
  font-family: var(--mono); font-size: 0.72rem; color: var(--deep);
  background: var(--amber); border-radius: 3px; padding: 0.1rem 0.35rem; margin-right: 0.45rem;
}
.brand-sub { color: var(--schematic); font-weight: 400; }
.topbar nav a { color: var(--schematic); margin-left: 1.1rem; font-family: var(--sans); font-size: 0.95rem; }
.topbar nav a:hover { color: var(--paper); }

main { max-width: 60rem; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2.5rem) 3rem; }

.foot { background: var(--deep); color: var(--schematic); margin-top: 4rem; }
.foot-inner { max-width: 60rem; margin: 0 auto; padding: 1.6rem clamp(1rem, 4vw, 2.5rem); font-size: 0.95rem; }
.foot a { color: var(--paper); }
.foot p { margin: 0.3rem 0; }
.foot .mono { font-size: 0.8rem; }

/* ---------- hero ---------- */
.hero, .dhero {
  margin: 2.2rem 0 2rem;
  padding: 2rem clamp(1.2rem, 3vw, 2.2rem) 2.2rem;
  background:
    repeating-linear-gradient(0deg, transparent 0 27px, rgba(127,168,217,0.14) 27px 28px),
    repeating-linear-gradient(90deg, transparent 0 27px, rgba(127,168,217,0.10) 27px 28px),
    var(--deep);
  color: var(--paper);
  border-radius: 10px;
}
.kicker { color: var(--amber); font-size: 0.78rem; margin: 0 0 0.6rem; }
.hero h1, .dhero h1 {
  margin: 0; font-family: var(--sans); font-weight: 750;
  font-size: clamp(1.9rem, 5vw, 3rem); line-height: 1.08; color: var(--paper);
}
.hero-sub { display: block; color: var(--schematic); font-size: 0.5em; font-weight: 500; margin-top: 0.4rem; }
.lede { color: var(--paper); max-width: 46rem; font-size: 1.05rem; margin: 1rem 0 0; }
.lede a { color: var(--amber); }

/* ---------- home: domain cards ---------- */
.domains { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1.1rem; }
.domain-card {
  display: block; background: var(--paper); border: 1px solid var(--rule);
  border-radius: 8px; padding: 1.2rem 1.3rem 1.1rem; text-decoration: none; color: var(--ink);
}
.domain-card h2 { font-family: var(--sans); margin: 0.55rem 0 0.35rem; color: var(--blueprint); }
.domain-card p { margin: 0.3rem 0; font-size: 0.98rem; }
.domain-card.live:hover { border-color: var(--blueprint); box-shadow: 0 2px 0 var(--blueprint); }
.domain-card.ghost { border-style: dashed; color: rgba(23, 42, 65, 0.78); background: transparent; }
.domain-card.ghost h2 { color: rgba(22, 58, 102, 0.8); }
.card-top { display: flex; justify-content: space-between; font-size: 0.72rem; color: var(--blueprint); }
.status-live { color: var(--amber-ink); }
.status-soon { color: rgba(23, 42, 65, 0.6); }
.card-count { font-size: 0.72rem; color: var(--blueprint); margin-top: 0.7rem; }

.tier-explain {
  margin-top: 2.2rem; padding: 1.3rem 1.4rem; background: var(--paper);
  border-left: 3px solid var(--amber); border-radius: 0 8px 8px 0;
}
.tier-explain h2 { font-size: 0.8rem; color: var(--amber-ink); margin: 0 0 0.5rem; }
.tier-explain p { margin: 0; }

/* ---------- tier chips ---------- */
.chip {
  display: inline-block; font-family: var(--mono); font-size: 0.68rem;
  letter-spacing: 0.09em; padding: 0.18rem 0.5rem; border-radius: 3px; vertical-align: middle;
}
.chip-private    { background: var(--schematic); color: var(--deep); }
.chip-instrument { background: var(--blueprint); color: var(--paper); }
.chip-commercial { background: var(--deep); color: var(--paper); }
.chip-cfi        { background: var(--amber); color: var(--deep); }

/* ---------- domain index ---------- */
.tier-band { margin: 2rem 0; }
.tier-band > h2 { margin: 0 0 0.8rem; }
.cardgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); gap: 1rem; }
.card {
  display: block; background: var(--paper); border: 1px solid var(--rule); border-radius: 8px;
  padding: 1rem 1.1rem; color: var(--ink); text-decoration: none;
}
.card:hover { border-color: var(--blueprint); box-shadow: 0 2px 0 var(--blueprint); }
.card h3 { font-family: var(--sans); margin: 0.5rem 0 0.3rem; color: var(--blueprint); font-size: 1.08rem; }
.card p { margin: 0; font-size: 0.92rem; }

/* ---------- boarding pass ---------- */
.bpass {
  display: flex; margin: 2.2rem 0 2rem; background: var(--paper);
  border: 1px solid var(--rule); border-radius: 10px; overflow: hidden; position: relative;
}
.bpass-main { flex: 1 1 auto; padding: 1.5rem clamp(1.2rem, 3vw, 2rem) 1.4rem; min-width: 0; }
.bpass-route { font-size: 0.74rem; color: var(--amber-ink); margin-bottom: 0.55rem; }
.bpass h1 {
  margin: 0 0 0.75rem; font-family: var(--sans); font-weight: 750;
  font-size: clamp(1.55rem, 4vw, 2.3rem); line-height: 1.12; color: var(--ink);
}
.bpass-meta { display: flex; align-items: center; gap: 0.7rem; }
.meta-date { font-size: 0.74rem; color: var(--blueprint); }
.bpass-stub {
  flex: 0 0 11.5rem; padding: 1.3rem 1.2rem;
  border-left: 2px dashed rgba(22, 58, 102, 0.4);
  background: var(--drafting);
  display: flex; flex-direction: column; gap: 0.55rem; justify-content: center;
}
.stub-row { display: flex; justify-content: space-between; font-size: 0.74rem; }
.stub-k { color: var(--amber-ink); }
.stub-v { color: var(--ink); font-weight: 600; }

/* ---------- article prose ---------- */
.prose { max-width: 44rem; }
.prose h2 {
  font-family: var(--sans); color: var(--blueprint); font-size: 1.45rem;
  margin: 2.4rem 0 0.7rem; line-height: 1.2;
}
.prose h3 { font-family: var(--sans); color: var(--blueprint); font-size: 1.15rem; margin: 1.8rem 0 0.5rem; }
.prose p { margin: 0.85rem 0; }
.prose blockquote {
  margin: 1.4rem 0; padding: 0.7rem 1.1rem; background: var(--paper);
  border-left: 3px solid var(--schematic); border-radius: 0 6px 6px 0;
}
.prose blockquote p { margin: 0; }
.prose code {
  font-family: var(--mono); font-size: 0.86em; background: var(--paper);
  border: 1px solid var(--rule); border-radius: 3px; padding: 0.06em 0.3em;
}
.prose pre { background: var(--deep); color: var(--paper); padding: 1rem 1.2rem; border-radius: 8px; overflow-x: auto; }
.prose pre code { background: none; border: none; color: inherit; padding: 0; }
.prose ul, .prose ol { padding-left: 1.4rem; }
.prose li { margin: 0.35rem 0; }
.prose hr { border: 0; border-top: 1px dashed var(--rule); margin: 2rem 0; }
.prose a.ref { font-weight: 600; }
.tablewrap { overflow-x: auto; margin: 1.4rem 0; }
.tablewrap table { border-collapse: collapse; min-width: 24rem; background: var(--paper); font-size: 0.95rem; }
.tablewrap th {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-align: left;
  color: var(--paper); background: var(--blueprint); padding: 0.5rem 0.8rem;
}
.tablewrap td { padding: 0.5rem 0.8rem; border-bottom: 1px solid var(--rule); }

/* ---------- sources + edges ---------- */
.sources { max-width: 44rem; margin-top: 2.4rem; font-size: 0.95rem; }
.sources h2 { font-size: 0.78rem; color: var(--amber-ink); margin: 0 0 0.4rem; }
.sources ul { margin: 0; padding-left: 1.3rem; }
.sources li { margin: 0.3rem 0; }

.edges {
  margin-top: 2.6rem; background: var(--paper); border: 1px solid var(--rule);
  border-top: 3px solid var(--amber); border-radius: 0 0 10px 10px;
  padding: 1.2rem 1.4rem 1.3rem;
}
.edges-title { font-size: 0.78rem; color: var(--amber-ink); margin: 0 0 0.9rem; }
.edge-group { margin: 0.9rem 0 0; }
.edge-group h3 { font-size: 0.72rem; color: var(--blueprint); margin: 0 0 0.25rem; letter-spacing: 0.08em; text-transform: uppercase; }
.edge-note { margin: 0 0 0.3rem; font-size: 0.85rem; color: rgba(23, 42, 65, 0.75); font-style: italic; }
.edge-group ul { list-style: none; margin: 0.2rem 0 0; padding: 0; }
.edge-group li { margin: 0.35rem 0; }

/* ---------- small screens ---------- */
@media (max-width: 40rem) {
  .bpass { flex-direction: column; }
  .bpass-stub { border-left: 0; border-top: 2px dashed rgba(22, 58, 102, 0.4); flex-basis: auto; }
  .topbar nav a { margin-left: 0; margin-right: 1rem; }
}