/* ============================================================
   AQUA GTM STACK — SHARED SHELL CSS
   Design tokens, nav, footer. Loaded by all sub-pages.
   ============================================================ */

:root {
  --primary: #28020F;
  --accent: #E35300;
  --accent-soft: #FF7A33;
  --secondary: #C1D6FF;
  --secondary-soft: #E0EAFF;
  --secondary-deep: #8DA7DB;
  --surface: #F6EBE3;
  --surface-alt: #EDE3DA;
  --dark: #151515;
  --light: #F9F9F9;
  --paper: #FFFFFF;
  --text-secondary: #5A5A5A;
  --text-tertiary: #8A8A8A;
  --border: #E2DCD7;
  --border-light: #F0ECE8;
  --success: #1A7A4C;
  --success-soft: #E6F4ED;
  --warning: #E35300;
  --warning-soft: #FFF1E6;
  --error: #C4320A;
  --font-display: "Playfair Display", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--dark);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 32px; }

/* ── Page masthead (shared across sub-pages) ── */
header.masthead {
  padding: 64px 0 40px;
  border-bottom: 1.5px solid var(--border);
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 22px;
  display: flex; align-items: center; gap: 12px;
}
.eyebrow::before {
  content: ""; width: 24px; height: 1.5px; background: var(--accent);
}
h1.page-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(36px, 4.6vw, 56px);
  line-height: 1.06;
  letter-spacing: -0.018em;
  margin: 0 0 18px;
  max-width: 22ch;
}
h1.page-title em { font-style: italic; color: var(--accent); }
.intro {
  font-size: 17px;
  color: var(--text-secondary);
  margin: 0;
  max-width: 720px;
}
.intro code {
  font-family: var(--font-mono); font-size: 13.5px;
  background: var(--surface-alt); padding: 1px 7px; border-radius: 4px;
  color: var(--dark);
}

/* ── Navbar (shared, no per-item dropdowns on sub-pages) ── */
.nav-host { position: sticky; top: 0; z-index: 50; }
.nav {
  --bg: #151515;
  --logo: #F6EBE3;
  --text: #F6EBE3;
  --label: rgba(193,214,255,0.7);
  --accent-c: #C1D6FF;
  --border-c: rgba(246,235,227,0.12);
  background: var(--bg); color: var(--text);
  border-radius: 0 0 24px 24px;
  padding: 22px 40px;
  display: flex; align-items: center; gap: 32px;
  border-bottom: 1.5px solid var(--border-c);
  transition: padding 0.28s cubic-bezier(.4,0,.2,1), gap 0.22s ease, border-radius 0.25s ease;
}
.nav .brand-img {
  display: block; height: 26px; aspect-ratio: 750 / 176;
  background-color: var(--logo);
  -webkit-mask: url('/assets/logo-tamarind.svg') no-repeat center / contain;
          mask: url('/assets/logo-tamarind.svg') no-repeat center / contain;
  transition: height 0.25s cubic-bezier(.4,0,.2,1);
}
.nav .nv-label {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--label); font-weight: 500;
  transition: opacity 0.18s ease, max-width 0.25s ease;
  overflow: hidden; white-space: nowrap;
}
.nav .nv-links {
  display: flex; align-items: center; gap: 4px; flex: 1;
  transition: opacity 0.18s ease, max-width 0.28s ease;
  overflow: hidden;
}
.nav .nv-links a {
  font-size: 14px; font-weight: 500; color: var(--text);
  padding: 6px 12px; border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
  text-decoration: none; white-space: nowrap;
}
.nav .nv-links a:hover { background: rgba(246,235,227,0.08); }
.nav .nv-links a.current {
  background: rgba(193,214,255,0.12);
  color: var(--accent-c);
}
.nav .nv-links .external::after { content: " ↗"; color: var(--accent-c); font-size: 12px; }
.nav .nv-links .sep { color: var(--label); margin: 0 2px; }
.nav .nv-meta {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.06em; color: var(--label);
  text-transform: uppercase;
  transition: font-size 0.2s ease;
  white-space: nowrap;
}
.nav .nv-meta strong { color: var(--accent-c); font-weight: 500; }

/* Compact (scrolled) */
.nav-host.scrolled .nav            { padding: 9px 28px; gap: 16px; border-radius: 0 0 16px 16px; }
.nav-host.scrolled .nav .brand-img { height: 16px; }
.nav-host.scrolled .nav .nv-label  { opacity: 0; max-width: 0; }
.nav-host.scrolled .nav .nv-links  { opacity: 0; max-width: 0; pointer-events: none; }
.nav-host.scrolled .nav .nv-meta   { font-size: 10px; opacity: 0.85; }

/* Hover override — re-expand */
.nav-host:hover .nav,
.nav-host:focus-within .nav { padding: 22px 40px; gap: 32px; }
.nav-host:hover .nav .brand-img,
.nav-host:focus-within .nav .brand-img { height: 26px; }
.nav-host:hover .nav .nv-label,
.nav-host:focus-within .nav .nv-label  { opacity: 1; max-width: 200px; }
.nav-host:hover .nav .nv-links,
.nav-host:focus-within .nav .nv-links  { opacity: 1; max-width: 1200px; pointer-events: auto; }
.nav-host:hover .nav .nv-meta,
.nav-host:focus-within .nav .nv-meta   { font-size: 11px; opacity: 1; }

@media (max-width: 880px) {
  .nav { flex-wrap: wrap; padding: 18px 22px; gap: 14px; }
  .nav .nv-links { width: 100%; flex-wrap: wrap; }
  .nav .nv-meta { width: 100%; }
}

/* ── Footer (shared) ── */
footer.foot {
  margin-top: 128px;
  background: var(--dark);
  color: var(--surface);
  padding: 64px 0 32px;
  border-radius: 24px 24px 0 0;
}
footer.foot .wrap { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
@media (max-width: 880px) { .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 540px) { .foot-grid { grid-template-columns: 1fr; } }
.foot-brand { display: flex; flex-direction: column; gap: 16px; }
.foot-brand img { height: 28px; width: auto; opacity: 0.95; }
.foot-brand .tag {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 18px;
  color: var(--surface);
  line-height: 1.4;
  max-width: 320px;
  background: transparent;
  padding: 0;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
}
.foot-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(193,214,255,0.7);
  margin: 0 0 16px;
  font-weight: 500;
}
.foot-col a {
  display: block;
  font-size: 14px;
  color: var(--surface);
  text-decoration: none;
  margin-bottom: 10px;
  transition: color 0.15s ease;
}
.foot-col a:hover { color: var(--accent-soft); }
.foot-col a.external::after { content: " ↗"; color: var(--secondary); opacity: 1; }
.foot-bottom {
  border-top: 1px solid rgba(246,235,227,0.12);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(246,235,227,0.5);
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.foot-bottom .legal { display: flex; gap: 18px; }
.foot-bottom a { color: rgba(246,235,227,0.5); }
.foot-bottom a:hover { color: var(--accent-soft); }

/* Status pills (shared) */
.tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 3px 9px;
  border-radius: 999px;
  text-transform: uppercase;
  display: inline-block;
}
.tag.live    { background: var(--success-soft); color: var(--success); }
.tag.partial { background: var(--warning-soft); color: var(--accent); }
.tag.todo    { background: var(--surface-alt); color: var(--text-secondary); }

.dot { width: 7px; height: 7px; border-radius: 50%; display: inline-block; }
.dot.live    { background: var(--success); }
.dot.partial { background: var(--accent); }
.dot.todo    { background: var(--text-tertiary); }