/* ============================================================================
   Platform pages (platform.html, verified-query-engine.html, whitepaper.html)
   Builds on ds/styles.css. Same site-wide overrides as the homepage, plus
   long-form reading, figures, evidence tables and print styles.
   ========================================================================== */

/* Shared with the homepage — keep in sync */
:root { --font-mono: 'Tiempos Headline', 'GT Sectra', Georgia, ui-serif, serif; }
:root { --font-code: 'JetBrains Mono', ui-monospace, 'Cascadia Code', Consolas, monospace; }
.hero h1 .accent { color: var(--purple); font-style: normal; }
.btn-arrow::after { content: "\2192" !important; font-family: 'Outfit', system-ui, sans-serif !important; }
a.btn-primary:hover { color: var(--canvas); }
.cta-section a.btn-primary:hover { background: var(--purple); color: var(--canvas); }.footer-bottom .footer-legal { color: var(--muted); border: none; text-decoration: underline; text-underline-offset: 2px; }
.footer-bottom .footer-legal:hover { color: var(--grove); }
.site-header .nav-links a[aria-current="page"] { color: var(--purple); }
@media (max-width: 880px) {
  .site-header .nav-links { display: flex; gap: var(--space-3); }
  .site-header .nav-secondary, .site-header .nav-cta { display: none; }
}

/* Code keeps a real monospace even though labels use Tiempos */
code, pre, .dsl-block, .dsl-block pre { font-family: var(--font-code); }
.dsl-block pre { font-size: 0.86rem; line-height: 1.6; }

/* ─── Section kickers and rhythm ─────────────────────────────────────────── */
.kicker { color: var(--purple); }
.band-warm { background: var(--canvas-warm); }
.band-dark { background: var(--graphite); color: var(--canvas); }
.band-dark h2, .band-dark h3 { color: var(--canvas); }
.band-dark .eyebrow { color: var(--teal); }
.band-dark p, .band-dark li { color: rgba(237, 240, 237, 0.82); }
.band-dark .lead { color: var(--canvas); }

/* Teal keyline used across the site for proof points */
.keyline { position: relative; padding-bottom: 0.65rem; }
.keyline::after { content: ""; position: absolute; left: 0; bottom: 0; width: 2.4rem; height: 3px; border-radius: 2px; background: var(--teal); }

/* ─── Feature grid (three or four claims) ────────────────────────────────── */
.feature-grid { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
@media (min-width: 760px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .feature-grid.three { grid-template-columns: repeat(3, 1fr); } }
.feature { background: var(--canvas); padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); min-width: 0; }
.feature .tag { font-family: var(--font-mono); font-size: var(--fs-micro); letter-spacing: 0.12em; text-transform: uppercase; color: var(--grove); }
.feature h3 { font-size: 1.6rem; margin: 0; text-wrap: balance; }
.feature p { font-size: var(--fs-small); color: var(--muted); margin: 0; }

/* ─── Figures ─────────────────────────────────────────────────────────────── */
figure.fig { margin: var(--space-4) 0; }
figure.fig .fig-frame { background: #F6F8F5; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--space-3); overflow-x: auto; }
figure.fig svg { display: block; width: 100%; min-width: 640px; height: auto; }
figure.fig figcaption { font-size: var(--fs-small); color: var(--muted); margin-top: var(--space-2); max-width: 46em; }
figure.fig figcaption b { color: var(--ink); font-weight: 500; }
.fig text { font-family: 'Outfit', system-ui, sans-serif; }

/* ─── Tables ──────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; margin: var(--space-3) 0 var(--space-4); border: 1px solid var(--line); border-radius: var(--radius-lg); background: #F6F8F5; }
table.data { width: 100%; border-collapse: collapse; font-size: var(--fs-small); min-width: 560px; }
table.data th, table.data td { text-align: left; padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--line); vertical-align: top; }
table.data tr:last-child td { border-bottom: none; }
table.data th { font-family: var(--font-mono); font-size: var(--fs-micro); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 500; background: var(--canvas-warm); }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.data td.gain { color: var(--grove); font-weight: 500; }
table.data td b { font-weight: 500; }

/* Status chips */
.chip { display: inline-block; font-size: 0.75rem; font-weight: 500; letter-spacing: 0.02em; padding: 0.12rem 0.5rem; border-radius: 999px; white-space: nowrap; }
.chip.done { background: var(--teal-fade); color: #1E5E54; }
.chip.wip { background: var(--purple-fade); color: #4A22B8; }
.chip.plan { background: var(--sage-faint); color: var(--grove); }

/* ─── Callouts ────────────────────────────────────────────────────────────── */
.callout { border-left: 3px solid var(--teal); background: var(--canvas-warm); padding: var(--space-3); border-radius: 0 var(--radius) var(--radius) 0; margin: var(--space-3) 0; }
.callout p { margin: 0; max-width: none; }
.callout .callout-label { font-family: var(--font-mono); font-size: var(--fs-micro); letter-spacing: 0.12em; text-transform: uppercase; color: var(--grove); margin-bottom: 0.35rem; display: block; }
.callout.limits { border-left-color: var(--purple); }
.pull { font-family: var(--font-display); font-size: clamp(1.5rem, 2.6vw, 2rem); line-height: 1.25; color: var(--ink); margin: var(--space-4) 0; max-width: 28em; text-wrap: balance; }
.equation { font-family: var(--font-code); background: var(--graphite); color: var(--canvas); padding: var(--space-3); border-radius: var(--radius); overflow-x: auto; font-size: 0.95rem; margin: var(--space-3) 0; }

/* ─── Long-form article (whitepaper) ─────────────────────────────────────── */
.wp-cover { background: var(--graphite); color: var(--canvas); padding: var(--space-7) 0 var(--space-6); }
.wp-cover .eyebrow { color: var(--teal); }
.wp-cover h1 { color: var(--canvas); font-size: clamp(2.4rem, 5.2vw, 4.25rem); max-width: 18ch; text-wrap: balance; margin-bottom: var(--space-3); }
.wp-cover .subhead { color: rgba(237, 240, 237, 0.84); font-size: 1.25rem; line-height: 1.5; max-width: 40em; font-weight: 300; }
.wp-meta { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-5); margin-top: var(--space-5); padding-top: var(--space-3); border-top: 1px solid rgba(237, 240, 237, 0.16); font-size: var(--fs-small); }
.wp-meta div { display: flex; flex-direction: column; gap: 0.15rem; }
.wp-meta span:first-child { font-family: var(--font-mono); font-size: var(--fs-micro); letter-spacing: 0.12em; text-transform: uppercase; color: var(--sage); }
.wp-meta span:last-child { color: var(--canvas); }
.draft-flag { display: inline-block; margin-left: 0.6rem; padding: 0.1rem 0.55rem; border: 1px solid var(--teal); color: var(--teal); border-radius: 999px; font-family: 'Outfit', sans-serif; font-size: 0.72rem; letter-spacing: 0.08em; vertical-align: middle; }

.wp-layout { display: grid; grid-template-columns: 1fr; gap: var(--space-5); max-width: var(--content-w); margin: 0 auto; padding: var(--space-6) var(--space-3) var(--space-7); }
@media (min-width: 1100px) { .wp-layout { grid-template-columns: 240px minmax(0, 1fr); gap: var(--space-6); } }
.wp-toc { font-size: var(--fs-small); min-width: 0; }
@media (min-width: 1100px) { .wp-toc { position: sticky; top: 96px; align-self: start; max-height: calc(100vh - 120px); overflow-y: auto; } }
.wp-toc .eyebrow { margin-bottom: var(--space-2); }
.wp-toc ol { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.45rem; counter-reset: toc; }
.wp-toc li { counter-increment: toc; display: grid; grid-template-columns: 1.8rem 1fr; }
.wp-toc li::before { content: counter(toc, decimal-leading-zero); font-family: var(--font-mono); color: var(--sage); font-size: var(--fs-micro); padding-top: 0.15rem; }
.wp-toc li.appendix::before { content: "A"; }
.wp-toc a { color: var(--ink-soft); border: none; }
.wp-toc a:hover { color: var(--purple); }

.wp-article { min-width: 0; max-width: 46rem; }
.wp-article > section { padding: 0 0 var(--space-6); }
.wp-article h2 { font-size: clamp(1.9rem, 3.2vw, 2.5rem); text-wrap: balance; scroll-margin-top: 96px; }
.wp-article h2 .sec-num { display: block; font-family: var(--font-mono); font-size: var(--fs-micro); letter-spacing: 0.14em; color: var(--purple); margin-bottom: var(--space-2); }
.wp-article h3 { font-size: 1.4rem; margin-top: var(--space-4); text-wrap: balance; }
.wp-article p, .wp-article li { font-size: 1.0625rem; line-height: 1.7; }
.wp-article p { max-width: none; }
.wp-article ul, .wp-article ol { padding-left: 1.3rem; margin: 0 0 var(--space-3); }
.wp-article li { margin-bottom: 0.4rem; }
.wp-article li::marker { color: var(--sage); }
.wp-article .exec { font-size: 1.2rem; font-weight: 400; line-height: 1.6; color: var(--ink-soft); }
.wp-article .refs li { font-size: var(--fs-small); color: var(--muted); }
.wp-article .refs a { word-break: break-word; }

/* Keyboard focus */
a:focus-visible, button:focus-visible { outline: 2px solid var(--purple); outline-offset: 3px; }

/* ─── Print / Save as PDF ─────────────────────────────────────────────────── */
@media print {
  @page { margin: 18mm 16mm; }
  body { background: #fff; }
  body::before { display: none; }
  .site-header, .site-footer, .wp-toc, .cta-section, .no-print, .skip-link { display: none !important; }
  .wp-cover { background: #fff; color: var(--graphite); padding: 0 0 12mm; border-bottom: 2px solid var(--graphite); }
  .wp-cover h1, .wp-meta span:last-child { color: var(--graphite); }
  .wp-cover .subhead { color: var(--graphite-soft); }
  .wp-cover .eyebrow, .draft-flag { color: var(--grove); border-color: var(--grove); }
  .wp-meta { border-top-color: var(--line); }
  .wp-layout { display: block; padding: 8mm 0 0; }
  .wp-article { max-width: none; }
  .wp-article > section { break-before: auto; }
  .wp-article h2, .wp-article h3 { break-after: avoid; }
  figure.fig, .table-wrap, .callout, .equation { break-inside: avoid; }
  figure.fig svg { min-width: 0; }
  table.data { min-width: 0; }
  a { border: none; color: inherit; }
}