/* Glyph shared design system — used by the sub-pages (/answers, /hardening).
   Mirrors the tokens and components inlined in index.html so every page reads
   as one site. */
:root {
  --bg: #0b1326;
  --surface: #131b2e;
  --surface-2: #171f33;
  --surface-3: #222a3d;
  --border: #2d3449;
  --border-2: #464554;
  --text: #dae2fd;
  --muted: #99a2bd;
  --indigo: #6366f1;
  --indigo-text: #a8acff;
  --cyan: #7dd3fc;
  --rose: #fb7185;
  --green: #4ade80;
  --amber: #fbbf24;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --display: "Geist", var(--sans);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image: radial-gradient(900px 480px at 78% -8%, rgba(99, 102, 241, 0.14), transparent 70%);
}
a { color: var(--indigo-text); text-decoration: none; }
a:hover { color: #c7caff; }
.wrap { max-width: 1000px; margin: 0 auto; padding: 0 32px; }

/* nav */
nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 0; border-bottom: 1px solid var(--border);
  max-width: 1200px; margin: 0 auto; padding-left: 32px; padding-right: 32px;
}
.brand {
  font-family: var(--display); font-weight: 700; letter-spacing: 0.06em;
  font-size: 1.15rem; color: var(--text);
}
.nav-links { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-size: 0.92rem; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }

/* page header */
.page-hero { padding: 72px 0 8px; }
.page-hero .eyebrow {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--indigo-text); margin: 0 0 14px;
}
.page-hero h1 {
  font-family: var(--display); font-weight: 700; letter-spacing: -0.02em;
  font-size: 2.6rem; line-height: 1.1; margin: 0 0 18px;
}
.page-hero .lede { color: var(--muted); font-size: 1.08rem; max-width: 68ch; margin: 0; }
.accent { color: var(--indigo-text); }

/* sections */
section { padding: 44px 0; }
.group-head {
  font-family: var(--display); font-size: 1.4rem; letter-spacing: -0.01em;
  font-weight: 600; margin: 0 0 6px;
}
.group-sub { color: var(--muted); font-size: 0.96rem; margin: 0 0 22px; }
.rule { border: none; border-top: 1px solid var(--border); margin: 8px 0 0; }

/* Q&A (details) */
.qa { max-width: 820px; }
.qa details {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 12px; padding: 0 22px; margin-bottom: 14px;
}
.qa details[open] { border-color: var(--border-2); }
.qa summary {
  list-style: none; cursor: pointer; padding: 20px 0;
  font-family: var(--display); font-weight: 600; font-size: 1.05rem;
  color: var(--text); display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: "+"; font-family: var(--mono); font-size: 1.3rem;
  color: var(--indigo-text); flex: none; line-height: 1;
}
.qa details[open] summary::after { content: "\2212"; }
.qa .answer { padding: 0 0 22px; margin: 0; color: var(--muted); font-size: 0.96rem; line-height: 1.65; }
.qa .answer + .answer { padding-top: 0; }
.qa .answer code { font-family: var(--mono); font-size: 0.86em; color: var(--cyan); }
.qa .answer a { color: var(--indigo-text); }

/* status chips */
.chip {
  display: inline-block; font-family: var(--mono); font-size: 0.68rem;
  letter-spacing: 0.06em; text-transform: uppercase; padding: 3px 9px;
  border-radius: 999px; border: 1px solid var(--border-2); margin-left: 10px;
  vertical-align: middle; white-space: nowrap;
}
.chip.shipped { color: var(--green); border-color: rgba(74, 222, 128, 0.4); background: rgba(74, 222, 128, 0.08); }
.chip.progress { color: var(--cyan); border-color: rgba(125, 211, 252, 0.4); background: rgba(125, 211, 252, 0.08); }
.chip.open { color: var(--amber); border-color: rgba(251, 191, 36, 0.4); background: rgba(251, 191, 36, 0.08); }

/* fix cards (hardening page) */
.fixgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.fix {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px 22px;
}
.fix .sev {
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted);
}
.fix .sev.critical { color: var(--rose); }
.fix .sev.high { color: var(--amber); }
.fix h4 { font-family: var(--display); font-weight: 600; font-size: 1rem; margin: 6px 0 8px; }
.fix p { margin: 0; color: var(--muted); font-size: 0.9rem; line-height: 1.6; }
.fix p + p { margin-top: 8px; }
.fix code { font-family: var(--mono); font-size: 0.84em; color: var(--cyan); }
.fix .now { color: var(--green); }

/* step cards */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.step { background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.step .n {
  font-family: var(--mono); font-size: 0.8rem; color: var(--indigo-text);
  border: 1px solid var(--border-2); border-radius: 8px; width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 12px;
}
.step h4 { font-family: var(--display); font-weight: 600; font-size: 1rem; margin: 0 0 6px; }
.step p { margin: 0; color: var(--muted); font-size: 0.88rem; }

/* callout */
.callout {
  background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--indigo);
  border-radius: 10px; padding: 20px 24px; margin: 8px 0; color: var(--muted); font-size: 0.96rem;
}
.callout strong { color: var(--text); }

/* footer */
footer { border-top: 1px solid var(--border); padding: 40px 0; margin-top: 32px; }
footer .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
footer .muted { color: var(--muted); font-size: 0.88rem; }
footer a { color: var(--muted); font-size: 0.88rem; }
footer a:hover { color: var(--text); }
.backlink { display: inline-block; margin-top: 40px; color: var(--muted); font-size: 0.92rem; }

@media (max-width: 820px) {
  .page-hero h1 { font-size: 2rem; }
  .fixgrid, .steps { grid-template-columns: 1fr; }
  .nav-links { gap: 16px; }
}

/* ============ guided answer pages ============ */
/* sub-nav: the question list, shown under the main nav on every answer page */
.subnav-wrap { border-bottom: 1px solid var(--border); background: rgba(19, 27, 46, 0.6); }
.subnav {
  max-width: 1200px; margin: 0 auto; padding: 0 32px;
  display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none;
}
.subnav::-webkit-scrollbar { display: none; }
.subnav a {
  white-space: nowrap; padding: 14px 14px; font-size: 0.86rem; font-weight: 500;
  color: var(--muted); border-bottom: 2px solid transparent; display: flex; gap: 8px; align-items: baseline;
}
.subnav a:hover { color: var(--text); }
.subnav a.active { color: var(--text); border-bottom-color: var(--indigo); }
.subnav a .n { font-family: var(--mono); font-size: 0.74rem; color: var(--indigo-text); }

/* the answer article, one consistent skeleton top-to-bottom */
.answer-page { max-width: 760px; margin: 0 auto; padding: 0 32px; }
.q-eyebrow {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--indigo-text); margin: 56px 0 14px;
}
.q-title { font-family: var(--display); font-weight: 700; letter-spacing: -0.02em; font-size: 2.2rem; line-height: 1.15; margin: 0 0 24px; }
.short-answer {
  font-family: var(--display); font-size: 1.28rem; line-height: 1.45; font-weight: 500; color: var(--text);
  border-left: 3px solid var(--indigo); padding: 4px 0 4px 22px; margin: 0 0 34px;
}
.short-answer strong { color: var(--indigo-text); font-weight: 600; }
.block-label {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); margin: 40px 0 14px; display: flex; align-items: center; gap: 10px;
}
.block-label::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.detail p { color: var(--muted); font-size: 1rem; line-height: 1.7; margin: 0 0 16px; }
.detail p strong, .detail strong { color: var(--text); }
.detail code, .short-answer code { font-family: var(--mono); font-size: 0.86em; color: var(--cyan); }

/* code / example blocks */
.code {
  background: #0d1424; border: 1px solid var(--border); border-radius: 10px;
  font-family: var(--mono); font-size: 0.84rem; line-height: 1.65; overflow-x: auto; margin: 0 0 18px;
}
.code .cap {
  display: block; padding: 9px 16px; border-bottom: 1px solid var(--border);
  color: var(--muted); font-size: 0.72rem; letter-spacing: 0.04em;
}
.code pre { margin: 0; padding: 16px; color: var(--text); }
.code .add { color: var(--green); display: block; }
.code .del { color: var(--rose); display: block; }
.code .dim { color: var(--muted); display: block; }
.code .cm { color: var(--muted); }
.two-up { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.verdict {
  display: inline-block; font-family: var(--mono); font-size: 0.78rem; padding: 4px 12px; border-radius: 999px;
  margin-top: 4px;
}
.verdict.good { color: var(--green); border: 1px solid rgba(74,222,128,0.4); background: rgba(74,222,128,0.08); }
.verdict.bad { color: var(--rose); border: 1px solid rgba(251,113,133,0.35); background: rgba(251,113,133,0.07); }

/* today / next status */
.status-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 8px 0 8px; }
.status-card { background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; }
.status-card .h { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; margin: 0 0 8px; }
.status-card.today .h { color: var(--green); }
.status-card.next .h { color: var(--cyan); }
.status-card p { margin: 0; color: var(--muted); font-size: 0.92rem; line-height: 1.6; }

/* prev / next */
.prevnext { display: flex; justify-content: space-between; gap: 16px; margin: 48px 0 24px; }
.prevnext a {
  flex: 1; border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; background: var(--surface-2);
  transition: border-color 0.15s, background 0.15s;
}
.prevnext a:hover { border-color: var(--indigo); background: var(--surface-3); }
.prevnext .dir { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; color: var(--muted); }
.prevnext .t { display: block; margin-top: 4px; color: var(--text); font-weight: 600; font-size: 0.98rem; }
.prevnext .nx { text-align: right; }
.prevnext .spacer { flex: 1; border: none; background: none; }
.prevnext .nx.cta { border-color: var(--indigo); background: rgba(99,102,241,0.12); }

@media (max-width: 820px) {
  .two-up, .status-row { grid-template-columns: 1fr; }
  .q-title { font-size: 1.7rem; }
}

/* accessibility: visible keyboard focus everywhere */
:focus-visible { outline: 2px solid var(--indigo-text); outline-offset: 2px; border-radius: 6px; }
/* mobile scroll affordance: fade the sub-nav's right edge to hint it scrolls */
@media (max-width: 720px) {
  .subnav-wrap {
    -webkit-mask-image: linear-gradient(to right, #000 86%, transparent);
    mask-image: linear-gradient(to right, #000 86%, transparent);
  }
  .subnav { scroll-snap-type: x proximity; }
  .subnav a { scroll-snap-align: start; }
}

/* ============ buttons (shared) ============ */
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 8px;
  font-weight: 600; font-size: 0.92rem; border: 1px solid var(--border-2); color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s; cursor: pointer;
}
.btn:hover { border-color: var(--indigo); box-shadow: inset 0 0 8px 0 rgba(99,102,241,0.35); color: var(--text); }
.btn.primary { background: var(--indigo); border-color: var(--indigo); color: #f5f6ff; }
.btn.primary:hover { background: #5457e6; box-shadow: 0 0 24px -4px rgba(99,102,241,0.6); }

/* ============ benchmarks page ============ */
.section-head { text-align: center; font-family: var(--display); font-size: 2rem; letter-spacing: -0.02em; font-weight: 600; margin: 0 0 16px; }
.friction-intro { text-align: center; color: var(--muted); max-width: 62ch; margin: 0 auto 40px; }
.card { background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px; padding: 24px; }
.card .label, .chart .label { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em; color: var(--muted); text-transform: uppercase; }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 24px; }
.stat .big, .card .big { font-family: var(--display); font-size: 1.9rem; font-weight: 700; letter-spacing: -0.02em; color: var(--text); margin: 6px 0 10px; }
.stat .big .accent, .card .big .accent { color: var(--indigo-text); }
.stat p, .card.stat p { margin: 0; color: var(--muted); font-size: 0.94rem; }
.stat .grepout, .grepout { margin-top: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; font-family: var(--mono); font-size: 0.74rem; line-height: 1.6; color: var(--text); overflow-x: auto; }
.grepout .prompt { color: var(--muted); }
.grepout .ln-no { color: var(--indigo-text); }
.chart { background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px; padding: 24px 26px; }
.chart h3 { font-family: var(--display); font-weight: 600; margin: 6px 0 22px; font-size: 1.12rem; }
.bar-row { display: flex; align-items: center; gap: 12px; margin: 10px 0; }
.bar-lang { width: 88px; font-family: var(--mono); font-size: 0.8rem; color: var(--muted); flex: none; }
.bar-track { flex: 1; background: var(--surface); border-radius: 6px; height: 26px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 6px; display: flex; align-items: center; justify-content: flex-end; padding-right: 10px; font-family: var(--mono); font-size: 0.76rem; white-space: nowrap; }
.bar-fill.glyph { background: linear-gradient(90deg, #4f46e5, #6366f1); color: #f5f6ff; }
.bar-fill.other { background: var(--surface-3); color: var(--muted); }
.bench-note { margin: 18px 0 0; color: var(--muted); font-size: 0.86rem; line-height: 1.6; }
.bench-note a { color: var(--indigo-text); }
@media (max-width: 760px) { .stat-row { grid-template-columns: 1fr; } }

/* ============ versions / changelog ============ */
.release { border-top: 1px solid var(--border); padding: 34px 0; }
.release:first-of-type { border-top: none; }
.rel-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; }
.rel-ver { font-family: var(--mono); font-size: 1.5rem; font-weight: 500; color: var(--text); }
.rel-tag { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--border-2); color: var(--muted); }
.rel-tag.latest { color: var(--green); border-color: rgba(74,222,128,0.4); background: rgba(74,222,128,0.08); }
.rel-date { color: var(--muted); font-size: 0.9rem; margin-left: auto; }
.rel-body h3 { font-family: var(--display); font-weight: 600; font-size: 1.1rem; margin: 0 0 14px; color: var(--text); }
.changelist { list-style: none; padding: 0; margin: 0; }
.changelist li { display: flex; gap: 12px; align-items: baseline; margin: 9px 0; color: var(--muted); font-size: 0.95rem; line-height: 1.5; }
.changelist .tag { flex: none; font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.06em; text-transform: uppercase; padding: 2px 0; border-radius: 4px; margin-top: 3px; width: 56px; text-align: center; }
.changelist .tag.fixed { color: var(--green); background: rgba(74,222,128,0.1); }
.changelist .tag.added { color: var(--cyan); background: rgba(125,211,252,0.1); }
.changelist .tag.changed { color: #fbbf24; background: rgba(251,191,36,0.1); }
.changelist .tag.site { color: var(--indigo-text); background: rgba(99,102,241,0.12); }
.changelist .tag.note { color: var(--muted); background: rgba(148,163,184,0.12); }
.changelist code { font-family: var(--mono); font-size: 0.85em; color: var(--cyan); }

/* ============ pillar story pages ============ */
.pillar-page { max-width: 760px; margin: 0 auto; padding: 0 32px; }
.pillar-page .lede { color: var(--muted); font-size: 1.05rem; line-height: 1.75; margin: 0 0 18px; }
.pillar-page .lede strong { color: var(--text); }
.pillar-page .lede code, .pull-quote code { font-family: var(--mono); font-size: 0.86em; color: var(--cyan); }
.q-eyebrow .wedge { color: var(--green); }
.q-eyebrow .polish { color: var(--cyan); }
.pull-quote {
  font-family: var(--display); font-size: 1.16rem; line-height: 1.5; font-weight: 500; color: var(--text);
  border-left: 3px solid var(--indigo); padding: 6px 0 6px 22px; margin: 28px 0;
}
.pull-quote strong { color: var(--indigo-text); font-weight: 600; }
.ex-label { color: var(--indigo-text); font-weight: 700; margin-right: 4px; }
.two-up .tag-good, .two-up .tag-bad {
  display: block; padding: 9px 16px 0; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.06em; text-transform: uppercase;
}
.two-up .tag-good { color: var(--green); }
.two-up .tag-bad { color: var(--rose); }
.bar-fill.pending {
  background: repeating-linear-gradient(45deg, var(--surface-3), var(--surface-3) 7px, var(--surface) 7px, var(--surface) 14px);
  color: var(--muted);
}
.pending-note {
  border: 1px dashed var(--border-2); border-radius: 12px; padding: 16px 20px; margin: 6px 0 8px;
  color: var(--muted); font-size: 0.92rem; line-height: 1.6; background: rgba(251,191,36,0.04);
}
.pending-note .h { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--amber); display: block; margin-bottom: 8px; }

/* pillar cards on the home grid become links */
a.card { display: block; transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s; }
a.card:hover { border-color: var(--indigo); transform: translateY(-2px); box-shadow: 0 10px 30px -12px rgba(99,102,241,0.5); }
.card-more { display: inline-block; margin-top: 14px; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.04em; color: var(--indigo-text); }
a.card:hover .card-more { color: var(--text); }

/* ============ home: "if you know TypeScript" glossary ============ */
.glossary { display: grid; gap: 12px; max-width: 720px; margin: 0 auto; }
.gloss {
  display: grid; grid-template-columns: 190px 1fr; gap: 18px; align-items: baseline;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 14px 18px;
}
.gloss > code { font-family: var(--mono); font-size: 0.86rem; color: var(--cyan); white-space: nowrap; }
.gloss > span { color: var(--muted); font-size: 0.95rem; line-height: 1.55; }
.gloss > span code { font-family: var(--mono); font-size: 0.86em; color: var(--text); }
.gloss-note { text-align: center; color: var(--muted); max-width: 62ch; margin: 26px auto 0; line-height: 1.6; }
.gloss-note a { color: var(--indigo-text); }
@media (max-width: 640px) { .gloss { grid-template-columns: 1fr; gap: 6px; } }

/* ============ answers index (menu) ============ */
.ans-index { max-width: 940px; margin: 0 auto; padding: 0 32px 40px; }
.ans-index .page-hero { padding: 56px 0 8px; }
.ans-group { margin: 34px 0 0; }
.ans-group > h2 {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 14px; display: flex; align-items: center; gap: 10px;
}
.ans-group > h2::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.ans-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.a-card {
  display: block; background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px;
  padding: 18px 20px; transition: border-color 0.15s, transform 0.15s;
}
.a-card:hover { border-color: var(--indigo); transform: translateY(-2px); }
.a-card .n { font-family: var(--mono); font-size: 0.72rem; color: var(--indigo-text); }
.a-card .q { display: block; margin: 6px 0 6px; color: var(--text); font-family: var(--display); font-weight: 600; font-size: 1rem; line-height: 1.3; }
.a-card p { margin: 0; color: var(--muted); font-size: 0.9rem; line-height: 1.5; }
@media (max-width: 720px) { .ans-cards { grid-template-columns: 1fr; } }