/* ─────────────────────────────────────────────────────────────────────────────
   RevWatch Docs — Shared Base
   base.css

   Design language is REVEAL's, reused deliberately: the two projects are meant to
   read as related applications of the same trust architecture (The Lens).
   Token values are carried over unchanged from reveal-landing/shared-base.css so
   the palettes cannot drift apart.
   ───────────────────────────────────────────────────────────────────────────── */

/* ── 1. Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── 2. Design tokens (carried over from REVEAL, values unchanged) ── */
:root {
  /* Warm neutrals */
  --ivory:       #F5F0E6;
  --eggshell:    #F2EDE0;
  --linen:       #EDE6D6;
  --warm-white:  #f7f7f7;
  --parchment:   #E8DEC8;
  --taupe:       #B8A898;
  --stone:       #D4C4B0;

  /* Brand earth tones */
  --cognac:      #8C4A2F;
  --cognac-dim:  rgba(140,74,47,0.1);
  --botanical:   #2e382b;

  /* Dark surfaces */
  --slate-deep:  #1E2A38;
  --slate-mid:   #2A3545;
  --charcoal:    #2C2824;
  --slate:       #4A5568;

  /* Gold — canonical value across all REVEAL pages */
  --gold:        #B8860B;
  --gold-light:  rgba(184,134,11,0.15);
  --gold-rule:   rgba(184,134,11,0.3);

  /* Layout */
  --measure:     720px;
  --shell-pad:   60px;
}

/* ── 3. Base element defaults ── */
html { scroll-behavior: smooth; }

body {
  background: var(--eggshell);
  color: var(--charcoal);
  font-family: 'DM Sans', sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a { color: inherit; }

/* ── 4. Noise texture overlay (REVEAL house treatment) ── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.02'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 200;
}

/* ── 5. Shared keyframes ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── 6. Accessibility ── */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--charcoal);
  color: var(--ivory);
  padding: 12px 18px;
  z-index: 300;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ── 7. Eyebrow label (REVEAL canonical: JetBrains Mono · 9px · uppercase · gold) ── */
.section-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 28px;
}

/* ── 8. Masthead ── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--charcoal);
  padding: 16px var(--shell-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* Two stacked links, not one wrapping link: the second goes to a different site,
   and an anchor cannot legally nest inside another anchor. */
.nav-mark { display: flex; flex-direction: column; gap: 3px; min-width: 0; }

.nav-mark-name {
  font-family: 'Playfair Display', serif;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--ivory);
  text-decoration: none;
  line-height: 1.1;
}

.nav-mark-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(184,134,11,0.78);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  width: fit-content;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.nav-mark-link:hover { color: var(--gold); border-bottom-color: rgba(184,134,11,0.5); }
.nav-mark-arrow { font-size: 9px; line-height: 1; }

.nav-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(184,134,11,0.7);
  border: 1px solid rgba(184,134,11,0.25);
  padding: 5px 10px;
  border-radius: 2px;
  white-space: nowrap;
  margin-left: auto;
}

/* ── 8b. Section rail / drawer ──
   One list, two presentations: a persistent rail at desktop width, a drawer
   below it. Same markup either way, so there is nothing to keep in sync. */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 34px;
  height: 30px;
  padding: 0;
  background: none;
  border: 1px solid rgba(184,134,11,0.25);
  border-radius: 2px;
  cursor: pointer;
}
.nav-toggle-bar {
  display: block;
  width: 16px;
  height: 1px;
  margin: 0 auto;
  background: var(--ivory);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
body.nav-open .nav-toggle-bar:nth-child(1) { transform: translateY(5px) rotate(45deg); }
body.nav-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle-bar:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.layout {
  flex: 1;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 216px minmax(0, 1fr);
  gap: 0;
}
body.is-index .layout,
body.is-legal .layout { grid-template-columns: minmax(0, 1fr); }
body.is-index .section-nav,
body.is-legal .section-nav { display: none; }

.section-nav {
  padding: 72px 26px 40px var(--shell-pad);
  position: sticky;
  top: 63px;
  align-self: start;
  max-height: calc(100vh - 63px);
  overflow-y: auto;
}
.section-nav-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--gold-rule);
}
.section-nav-list { list-style: none; display: flex; flex-direction: column; gap: 2px; }
.section-nav-list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 7px 8px 7px 0;
  text-decoration: none;
  color: var(--slate);
  font-size: 12.5px;
  line-height: 1.4;
  border-left: 2px solid transparent;
  padding-left: 10px;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.section-nav-list a:hover { color: var(--charcoal); background: var(--cognac-dim); }
.section-nav-list a.active { color: var(--charcoal); border-left-color: var(--cognac); font-weight: 500; }
.section-nav-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 8.5px;
  letter-spacing: 0.1em;
  color: var(--gold);
  flex-shrink: 0;
}

/* ── 9. Shell ── */
.shell {
  min-width: 0;
  padding: 72px var(--shell-pad) 96px;
  position: relative;
  z-index: 1;
}
body.is-index .shell { max-width: 1200px; margin: 0 auto; }
body.is-legal .shell { max-width: 900px; margin: 0 auto; }

/* ── 10. Footer ── */
.site-footer {
  background: var(--charcoal);
  color: rgba(245,240,230,0.62);
  padding: 56px var(--shell-pad) 0;
  position: relative;
  z-index: 1;
}
.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 2fr;
  gap: 48px;
  padding-bottom: 44px;
}

.footer-brand { max-width: 38ch; }
.footer-mark {
  font-family: 'Playfair Display', serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--ivory);
}
/* Quoted verbatim from v0.1 §1; the build asserts it. */
.footer-principle {
  font-family: 'Lora', serif;
  font-style: italic;
  font-size: 17px;
  line-height: 1.55;
  color: rgba(184,134,11,0.92);
  margin: 16px 0 18px;
  padding-left: 16px;
  border-left: 2px solid rgba(184,134,11,0.35);
}
.footer-note {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  letter-spacing: 0.06em;
  line-height: 1.9;
  color: rgba(245,240,230,0.45);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 32px;
  align-content: start;
}
.footer-column { display: flex; flex-direction: column; gap: 9px; }
.footer-column-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(184,134,11,0.8);
  margin-bottom: 3px;
}
.footer-column a {
  font-size: 12.5px;
  line-height: 1.45;
  color: rgba(245,240,230,0.62);
  text-decoration: none;
  width: fit-content;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.footer-column a:hover { color: var(--ivory); border-bottom-color: rgba(184,134,11,0.5); }

.footer-baseline {
  max-width: 1240px;
  margin: 0 auto;
  padding: 18px 0 26px;
  border-top: 1px solid rgba(255,255,255,0.07);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.08em;
  color: rgba(245,240,230,0.4);
}

/* ── 11. Responsive ── */
@media (max-width: 1040px) {
  :root { --shell-pad: 24px; }

  .nav-toggle { display: flex; }
  .nav-tag { margin-left: 0; }

  .layout { grid-template-columns: minmax(0, 1fr); }

  .section-nav {
    display: none;
    position: static;
    max-height: none;
    padding: 20px var(--shell-pad);
    background: var(--linen);
    border-bottom: 1px solid var(--gold-rule);
  }
  body.nav-open .section-nav { display: block; }
  .section-nav-list { gap: 0; }
  .section-nav-list a { padding-top: 10px; padding-bottom: 10px; font-size: 14px; }

  .shell { padding-top: 48px; }
  .footer-inner { grid-template-columns: minmax(0, 1fr); gap: 36px; }
}

@media (max-width: 560px) {
  .nav-mark-name { font-size: 13px; letter-spacing: 0.13em; }
  .nav-tag { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}