/* ========================================================================
   Gabarit — Shared Brand CSS
   Single source of truth for design tokens and the wordmark logo.
   Per-page nav styles remain inline (they vary slightly between pages).

   v2.1 update (May 2026):
   - Added --primary-text for AA-passing teal on small text on dark bg
   - Added --warm tokens (ideation accent, future Compass surfaces)
   - Added prefers-reduced-motion safety

   §1A wordmark exception (May 2026):
   - LABS stays on --primary at every size — WCAG SC 1.4.3 logotype carve-out
   ======================================================================== */

/* ── Design Tokens ─────────────────────────────────────────────────────── */
:root {
  /* Palette — dark only */
  --bg:           #0a0f0f;
  --surface:      #0f1a1a;
  --surface-2:    #142020;
  --surface-3:    #1a2828;
  --border:       #1e3232;
  --border-soft:  rgba(30, 50, 50, 0.6);
  --text:         #e8e4dc;
  --text-muted:   #8a9090;
  --text-faint:   #3a4848;  /* Decoration only — fails AA contrast for reading text. */

  /* Primary teal */
  --primary:      #01696F;  /* Backgrounds, fills, button surfaces, large display accents */
  --primary-text: #2da4ab;  /* AA-passing teal for small text on dark bg */
  --primary-hover:#01878f;
  --primary-faint: rgba(1, 105, 111, 0.12);
  --primary-line:  rgba(1, 105, 111, 0.35);

  /* Warm amber — exploration/ideation surfaces */
  --warm:         #d4a86a;
  --warm-faint:   rgba(212, 168, 106, 0.10);
  --warm-line:    rgba(212, 168, 106, 0.30);

  /* Type */
  --font-display: 'Cormorant Garamond', 'Georgia', 'Times New Roman', serif;
  --font-body:    'Switzer', 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

  /* Spacing scale (8pt) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max-w: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  /* Motion */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ── Wordmark / Logo ───────────────────────────────────────────────────── */
/* Single source of truth — matches Lab portal exactly.
   Cormorant Garamond, horizontal, GABARIT in text color + LABS in teal.
   Sized responsively so it doesn't dominate the mobile viewport. */
.gl-logo-mark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: 0.06em;
  line-height: 1;
  white-space: nowrap;
  text-transform: uppercase;
}
@media (min-width: 640px) {
  .gl-logo-mark {
    font-size: 19px;
    gap: 0.4rem;
  }
}
.gl-logo-top {
  color: var(--text);
}
.gl-logo-bottom {
  /* §1A wordmark exception — WCAG SC 1.4.3 logotype carve-out:
     canonical wordmark "LABS" stays on --primary (#01696F) at every size,
     including nav-context sizes below 18.66px. Logos are exempt from
     small-text contrast requirements; the considered, restrained register
     of the lockup is the intended visual identity. */
  color: var(--primary);
}

/* ── Sign in link in nav ───────────────────────────────────────────────── */
/* Always visible at every viewport — Sign in is essential for returning members.
   "Free Toolkit" is the link that hides on narrow screens (handled in each
   page's existing nav CSS via .nav-links a:first-child { display: none; }
   on mobile). */
.nav-links .nav-signin {
  color: var(--text-muted);
  transition: color 180ms var(--ease);
  white-space: nowrap;
}
.nav-links .nav-signin:hover {
  color: var(--text);
}

/* ── Reduced motion safety ─────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}



/* ── Container (page width clamp, shared) ─────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ========================================================================
   Canonical Nav (May 16, 2026 — chrome unification across all pages)
   Moved here from per-page inline blocks so every page renders the same nav.
   Required markup: <nav class="nav" id="nav"> with .nav-inner, .nav-logo,
   .nav-links-desktop, .nav-actions (.nav-signin + .nav-cta + .nav-hamburger),
   and .nav-drawer#navDrawer. Pair with the canonical nav JS snippet.
   ======================================================================== */
/* ── Nav ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 15, 15, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color 240ms var(--ease);
}
.nav.scrolled { border-bottom-color: var(--border); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 0.75rem;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-links-desktop {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin-left: auto;
  margin-right: 1.25rem;
}
.nav-links-desktop a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.04em;
  transition: color 180ms var(--ease);
}
.nav-links-desktop a:hover { color: var(--text); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav-signin, .nav-cta {
  text-decoration: none;
  padding: 0.5rem 0.9rem;
  border-radius: 2px;
  font-size: 12px;
  letter-spacing: 0.03em;
  white-space: nowrap;
  transition: all 180ms var(--ease);
}
.nav-signin {
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.nav-signin:hover {
  color: var(--text);
  border-color: var(--text-muted);
}
.nav-cta {
  color: #fff;
  background: var(--primary);
  border: 1px solid var(--primary);
}
.nav-cta:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}
.nav-hamburger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 2px;
  cursor: pointer;
  padding: 0;
  transition: border-color 180ms var(--ease);
}
.nav-hamburger:hover { border-color: var(--text-muted); }
.nav-hamburger span {
  display: block;
  width: 16px;
  height: 1px;
  background: var(--text);
  transition: transform 220ms var(--ease), opacity 220ms;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(2.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-2.5px) rotate(-45deg); }
.nav-drawer {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  max-height: 0;
  transition: max-height 320ms var(--ease);
}
.nav-drawer.open { max-height: 720px; }
.nav-drawer .nav-drawer-inner {
  padding: 0.5rem clamp(1.25rem, 4vw, 2rem) 1.5rem;
}
.nav-drawer .drawer-sub {
  font-size: 10px;
  color: var(--primary-text);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 1rem 0 0.25rem;
  font-weight: 500;
}
.nav-drawer .drawer-sub:first-child { padding-top: 0.5rem; }
.nav-drawer a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text);
  text-decoration: none;
  padding: 0.875rem 0;
  font-size: 15px;
  letter-spacing: 0.01em;
  border-bottom: 1px solid var(--border-soft);
  transition: color 180ms var(--ease), padding 180ms var(--ease);
}
.nav-drawer a:hover { color: var(--primary-text); padding-left: 4px; }
.nav-drawer a .arrow {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1;
  transition: color 180ms var(--ease);
}
.nav-drawer a:hover .arrow { color: var(--primary-text); }
.nav-drawer a .meta {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}
.nav-drawer .drawer-cta {
  margin-top: 1.25rem;
  background: var(--primary);
  color: #fff !important;
  text-align: center;
  padding: 0.875rem 1rem !important;
  border: 1px solid var(--primary);
  border-bottom: 1px solid var(--primary) !important;
  justify-content: center;
}
.nav-drawer .drawer-cta:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  padding-left: 1rem !important;
}
@media (max-width: 880px) {
  .nav-links-desktop { display: none; }
  .nav-hamburger { display: inline-flex; }
}
@media (max-width: 480px) {
  .nav-actions { gap: 0.4rem; }
  .nav-signin, .nav-cta { padding: 0.45rem 0.7rem; font-size: 11px; }
}