/* ============================================================
   Dept5 — Editorial Noir shared styles
   Matches the R12 homepage design language. Used by team.html,
   labs.html, aces.html, privacy.html, terms.html, disclaimer.html.
   ============================================================ */

/* Design tokens (lifted verbatim from R12) */
:root {
  --noir:           #0c0c0e;
  --noir-2:         #131316;
  --noir-3:         #1c1c20;
  --bone:           #ece4d2;
  --bone-2:         #e2d8c2;
  --bone-3:         #f5efe0;
  --crimson:        #b03325;
  --crimson-deep:   #82231a;
  --rule-d:         rgba(236, 228, 210, 0.14);
  --rule-d-strong:  rgba(236, 228, 210, 0.30);
  --rule-l:         rgba(12, 12, 14, 0.15);
  --rule-l-strong:  rgba(12, 12, 14, 0.32);
  --muted-d:        rgba(236, 228, 210, 0.74);
  --muted-l:        rgba(12, 12, 14, 0.70);
  --sans:  "Inter Tight", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --serif: "Instrument Serif", "Times New Roman", Georgia, serif;
  --mono:  "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

/* Reset */
* { box-sizing: border-box; margin: 0; padding: 0; min-width: 0; }
html, body { background: var(--noir); color: var(--bone); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
body { overflow-x: hidden; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4, h5, p, span, div, li, a { overflow-wrap: break-word; }

/* Layout */
.container { max-width: 1480px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 640px) { .container { padding: 0 18px; } }

.section { padding: 80px 0; }
@media (max-width: 720px) { .section { padding: 56px 0; } }

/* Color-mode sections (R12 alternates dark/light) */
.dark  { background: var(--noir); color: var(--bone); }
.light { background: var(--bone); color: var(--noir); }

.dark  a:hover { color: var(--bone); }
.light a:hover { color: var(--crimson); }

/* Theme helpers */
.em-c   { color: var(--crimson); font-family: var(--serif); font-style: italic; font-weight: 400; }
.serif  { font-family: var(--serif); }
.mono   { font-family: var(--mono); }
.label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.dark  .label { color: var(--muted-d); }
.light .label { color: var(--muted-l); }

/* ──── Site header (sticky, quiet) ──── */
.siteheader {
  position: sticky; top: 0; z-index: 50;
  background: var(--noir);
  border-bottom: 1px solid var(--rule-d);
}
.siteheader .row {
  padding: 14px 0;
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  position: relative;
}
.wordmark {
  display: inline-flex; align-items: baseline; gap: 0;
  font-family: var(--serif); font-size: 22px; letter-spacing: -0.01em;
  color: var(--bone);
}
.wordmark .d   { font-weight: 400; }
.wordmark .num { color: var(--crimson); font-style: italic; padding: 0 4px; }

.siteheader nav {
  display: flex; gap: 28px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--muted-d);
}
.siteheader nav a { transition: color .15s ease; }
.siteheader nav a:hover,
.siteheader nav a.current { color: var(--bone); }

.mobile-menu-toggle,
.mobile-menu {
  display: none;
}

.mobile-menu-toggle {
  appearance: none;
  background: transparent;
  border: 1px solid var(--rule-d-strong);
  color: var(--bone);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 10px 12px;
  min-height: 42px;
}

.mobile-menu-toggle[aria-expanded="true"] {
  border-color: var(--crimson);
  color: var(--bone);
}

.mobile-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background: rgba(12, 12, 14, 0.98);
  border-bottom: 1px solid var(--rule-d-strong);
  padding: 8px 16px 18px;
}

.mobile-menu a {
  display: block;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule-d);
  color: var(--bone);
  font-family: var(--sans);
  font-size: 23px;
  line-height: 1.05;
  letter-spacing: -0.015em;
}

.mobile-menu a:last-child { border-bottom: 0; }

@media (max-width: 920px) {
  .siteheader nav { display: none; }
  .mobile-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 88px;
    min-height: 44px;
    padding: 12px 14px;
  }
  .siteheader .mobile-menu[hidden] { display: none !important; }
  .siteheader .mobile-menu.is-open {
    display: block !important;
    position: fixed;
    left: 0;
    right: 0;
    top: 66px;
    z-index: 120;
    padding: 10px 18px 20px;
    background: rgba(12, 12, 14, 0.985);
    border-top: 1px solid var(--rule-d);
    border-bottom: 1px solid var(--rule-d-strong);
    box-shadow: 0 22px 50px rgba(0,0,0,0.35);
  }
  .siteheader .mobile-menu a {
    font-size: 24px;
    padding: 16px 0;
  }
}

.siteheader .status {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--muted-d);
  display: flex; align-items: center; gap: 8px;
}
.siteheader .status .live {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--crimson);
  animation: blink 2.4s infinite;
}
@keyframes blink { 50% { opacity: 0.35; } }

@media (max-width: 640px) {
  body,
  p,
  li,
  .deck,
  .body,
  .brief,
  .caption,
  .desc {
    font-size: calc(1em + 1px);
  }

  .siteheader .row { padding: 12px 18px; gap: 12px; }
  .siteheader .status { display: none; }
}

/* ──── Page hero (section title block used on every interior page) ──── */
.page-hero { padding: 80px 0 56px; border-bottom: 1px solid var(--rule-d); }
.light .page-hero { border-bottom-color: var(--rule-l); }
.page-hero .eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--crimson);
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 24px;
}
.page-hero .eyebrow::before {
  content: ""; display: inline-block; width: 24px; height: 1px;
  background: var(--crimson); flex-shrink: 0;
}
.page-hero h1 {
  font-family: var(--sans); font-weight: 400;
  font-size: clamp(40px, 7.5vw, 112px);
  line-height: 0.96; letter-spacing: -0.035em;
  max-width: 22ch;
}
.page-hero h1 em {
  font-family: var(--serif); font-style: italic;
  color: var(--crimson); font-weight: 400;
}
.page-hero .deck {
  margin-top: 28px; max-width: 64ch;
  font-size: clamp(16px, 1.6vw, 19px); line-height: 1.55;
}
.dark  .page-hero .deck { color: var(--bone); }
.light .page-hero .deck { color: var(--noir); }

/* ──── Section header (§ N · h2 · meta) ──── */
.sect-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px; align-items: end;
  padding-bottom: 28px; margin-bottom: 40px;
  border-bottom: 1px solid var(--rule-d);
}
.light .sect-head { border-bottom-color: var(--rule-l); }
.sect-head .ord {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--crimson);
}
.sect-head h2 {
  font-family: var(--sans); font-weight: 400;
  font-size: clamp(28px, 4.4vw, 56px);
  line-height: 1.02; letter-spacing: -0.025em;
}
.sect-head h2 em {
  font-family: var(--serif); font-style: italic;
  color: var(--crimson); font-weight: 400;
}
.sect-head .meta {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em;
  text-transform: uppercase; text-align: right;
}
.dark  .sect-head .meta { color: var(--muted-d); }
.light .sect-head .meta { color: var(--muted-l); }
@media (max-width: 720px) {
  .sect-head { grid-template-columns: 1fr; gap: 12px; }
  .sect-head .meta { text-align: left; }
}

@media (max-width: 640px) {
  .page-hero { padding: 56px 0 40px; }
  .page-hero .eyebrow {
    flex-wrap: wrap;
    letter-spacing: 0.13em;
    line-height: 1.35;
  }
  .page-hero h1 {
    font-size: clamp(31px, 9vw, 38px);
    line-height: 1.06;
    letter-spacing: -0.018em;
    max-width: 100%;
  }
  .page-hero .deck {
    max-width: 100%;
    font-size: 16px;
  }
  .sect-head h2 {
    font-size: clamp(28px, 9vw, 42px);
    max-width: 100%;
  }
  .sect-head .meta {
    max-width: 28ch;
  }
}

/* ──── Buttons ──── */
.btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 16px 22px 16px 24px;
  border-radius: 999px; font-weight: 500; font-size: 14px;
  transition: all .2s ease;
  white-space: nowrap; width: fit-content;
}
.btn-primary { background: var(--bone); color: var(--noir); }
.btn-primary:hover { background: var(--bone-3); transform: translateY(-2px); }
.btn-primary .arrow {
  width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0;
  background: var(--noir); color: var(--bone);
  display: grid; place-items: center; font-size: 13px;
}
.btn-ghost {
  background: transparent; color: var(--bone);
  border: 1px solid var(--rule-d-strong);
}
.btn-ghost:hover { border-color: var(--bone); background: rgba(236, 228, 210, 0.04); }
.btn-noir { background: var(--noir); color: var(--bone); }
.btn-noir:hover { background: var(--noir-3); transform: translateY(-2px); }
.btn-noir .arrow {
  width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0;
  background: var(--bone); color: var(--noir);
  display: grid; place-items: center; font-size: 13px;
}
.btn-outline-l {
  background: transparent; color: var(--noir);
  border: 1px solid var(--rule-l-strong);
}
.btn-outline-l:hover { border-color: var(--noir); background: rgba(12, 12, 14, 0.04); }

@media (max-width: 540px) {
  .btn {
    width: 100%;
    justify-content: center;
    text-align: center;
    white-space: normal;
  }
}

/* ──── Footer ──── */
.sitefooter {
  border-top: 1px solid var(--rule-d);
  padding: 32px 0 56px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted-d);
}
.light .sitefooter { border-top-color: var(--rule-l); color: var(--muted-l); }
.sitefooter .footer-l {
  display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.sitefooter .footer-l a:hover { color: var(--crimson); }
.sitefooter .footer-l .links { display: inline-flex; gap: 18px; }
.sitefooter .footer-l .links a + a::before {
  content: "·"; padding-right: 18px; padding-left: 0;
  color: var(--rule-d-strong);
}
.light .sitefooter .footer-l .links a + a::before { color: var(--rule-l-strong); }

/* ──── Long-form prose (legal pages) ──── */
.prose {
  max-width: 72ch;
  font-size: 16px; line-height: 1.7;
}
.prose h2 {
  font-family: var(--sans); font-weight: 500;
  font-size: clamp(22px, 2.5vw, 30px);
  line-height: 1.15; letter-spacing: -0.01em;
  margin: 56px 0 16px;
}
.prose h2 em {
  font-family: var(--serif); font-style: italic;
  color: var(--crimson); font-weight: 400;
}
.prose h3 {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em;
  text-transform: uppercase;
  margin: 32px 0 12px;
}
.dark  .prose h3 { color: var(--muted-d); }
.light .prose h3 { color: var(--muted-l); }
.prose p,
.prose ul,
.prose ol { margin-bottom: 1.1em; }
.prose ul,
.prose ol { padding-left: 1.2em; }
.prose li { margin-bottom: 0.45em; }
.prose strong { font-weight: 600; }
.prose a {
  color: var(--crimson);
  border-bottom: 1px solid currentColor;
  transition: opacity .15s ease;
}
.prose a:hover { opacity: 0.7; }
.prose hr {
  border: 0; height: 1px;
  background: var(--rule-l);
  margin: 56px 0;
}
.dark .prose hr { background: var(--rule-d); }

.prose .meta-row {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em;
  text-transform: uppercase;
  display: flex; gap: 24px; flex-wrap: wrap;
  padding: 20px 0; margin-bottom: 32px;
  border-top: 1px solid var(--rule-l);
  border-bottom: 1px solid var(--rule-l);
}
.dark .prose .meta-row {
  border-color: var(--rule-d);
  color: var(--muted-d);
}
.light .prose .meta-row { color: var(--muted-l); }

/* Editorial drop-cap option (use class="lead" on first prose <p>) */
.prose p.lead { font-size: 19px; line-height: 1.55; }
.prose p.lead::first-letter {
  font-family: var(--serif); font-style: italic;
  color: var(--crimson);
  font-size: 3.8em; line-height: 0.85;
  float: left; padding: 0.04em 0.08em 0 0;
}

/* Editorial "TOC" for long legal docs */
.toc {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em;
  text-transform: uppercase;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 4px 24px;
  padding: 20px 0;
  margin-bottom: 24px;
}
.toc a { display: block; padding: 6px 0; border-bottom: 1px solid transparent; }
.dark  .toc a { color: var(--muted-d); }
.light .toc a { color: var(--muted-l); }
.toc a:hover { color: var(--crimson); border-bottom-color: var(--crimson); }
.toc a .n { color: var(--crimson); padding-right: 10px; }

/* Reveal animation (matches R12) */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}