/* ══════════════════════════════════════════════════════════════
   GLOBALS — shared token layer
   Single source of truth. Components reference tokens, never
   hard-coded values. Governs: spacing, radius, type, color
   (light + dark), accessibility, shared chrome (nav/footer/toggle).
══════════════════════════════════════════════════════════════ */

/* ── 1.1 Spacing scale (8px base) ── */
:root {
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-9: 72px;
  --space-12: 96px;
  --space-15: 120px;

  /* ── 1.2 Radius (a small, a large, a pill) ── */
  --radius-sm: 6px;
  --radius-lg: 14px;
  --radius-pill: 100px;

  /* ── 1.3 Type scale + pairing ── */
  --font-display: "Fraunces", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, Menlo, "Cascadia Code", "JetBrains Mono", monospace;

  --type-hero: clamp(40px, 6vw, 82px);
  --type-h2: clamp(28px, 3.2vw, 52px);
  --type-h3: 23px;
  --type-body-lg: 21px;
  --type-body: 17px;
  --type-small: 15px;
  --type-caption: 13px;
  --type-eyebrow: 12px;

  --measure: 68ch;   /* ~60–75ch reading measure */
  --max: 1080px;
}

/* ── 1.4 Color tokens — DARK (default) ── */
:root,
[data-theme="dark"] {
  --bg:            #0a0a0a;
  --surface:       #111111;
  --surface-2:     #181818;
  --border:        #1f1f1f;
  --border-2:      #2a2a2a;
  --text:          #f0f0f0;
  --text-2:        #9a9a9a;
  --text-3:        #555555;
  --accent:        #dc6567;
  --accent-dim:    rgba(220,101,103,.12);
  --accent-border: rgba(220,101,103,.28);
  --focus-ring:    #dc6567;
  --nav-bg:        rgba(10,10,10,.92);
}

/* ── Color tokens — LIGHT ── */
[data-theme="light"] {
  --bg:            #f5f6f7;
  --surface:       #ffffff;
  --surface-2:     #eef0f2;
  --border:        #e1e4e8;
  --border-2:      #d3d5d8;
  --text:          #16181d;
  --text-2:        #454a52;
  --text-3:        #8a9099;
  --accent:        #c64f51;   /* darkened coral for AA on light surfaces */
  --accent-dim:    rgba(198,79,81,.10);
  --accent-border: rgba(198,79,81,.30);
  --focus-ring:    #c64f51;
  --nav-bg:        rgba(245,246,247,.90);
}

html { color-scheme: dark; }
html[data-theme="light"] { color-scheme: light; }

/* ── 1.5 Accessibility globals ── */
*, *::before, *::after { box-sizing: border-box; }
*:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* Skip link — first focusable element on every page */
.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -120%;
  z-index: 1000;
  background: var(--accent);
  color: #fff;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font: 600 var(--type-caption)/1 var(--font-sans);
  text-decoration: none;
}
.skip-link:focus { top: var(--space-1); }

/* ══════════════════════════════════════════════════════════════
   SHARED CHROME — global nav + footer + theme toggle
   Identical on every page. Two items only; never a third.
══════════════════════════════════════════════════════════════ */

.gnav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-5);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: background-color .25s, border-color .25s;
}
.gnav-name {
  font: 600 16px/1 var(--font-sans);
  letter-spacing: -.01em;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  min-height: 44px;
}
.gnav-right { display: flex; align-items: center; gap: var(--space-1); }
.gnav-links { display: flex; align-items: center; gap: 2px; }
.gnav-link {
  position: relative;
  font: 500 14px/1 var(--font-sans);
  color: var(--text-2);
  text-decoration: none;
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 var(--space-2);
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.gnav-link:hover { color: var(--text); }
.gnav-link[aria-current="page"] {
  color: var(--text);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-left: var(--space-1);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-2);
  cursor: pointer;
  transition: color .15s, border-color .15s, background-color .15s;
}
.theme-toggle:hover { color: var(--text); border-color: var(--border-2); }
.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }

/* Mobile nav */
.gnav-burger { display: none; }
/* Side-drawer backdrop (created by theme.js) */
.gnav-backdrop {
  position: fixed; inset: 0; z-index: 80;
  background: rgba(0,0,0,.5);
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease;
}
.gnav-backdrop.show { opacity: 1; pointer-events: auto; }
@media (min-width: 681px) { .gnav-backdrop { display: none; } }

@media (max-width: 680px) {
  /* Drop backdrop-filter on mobile: it would create a containing block that
     traps the fixed drawer at nav height instead of full viewport height. */
  .gnav { padding: 0 var(--space-3); backdrop-filter: none; -webkit-backdrop-filter: none; }
  /* Slide-in side drawer from the right */
  .gnav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    width: min(80vw, 300px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--surface);
    border-left: 1px solid var(--border);
    padding: calc(64px + var(--space-2)) 0 var(--space-3);
    transform: translateX(100%);
    pointer-events: none;
    transition: transform .28s ease;
    box-shadow: -24px 0 60px rgba(0,0,0,.45);
  }
  .gnav-links.open { transform: translateX(0); pointer-events: auto; }
  .gnav-link {
    height: 54px;
    padding: 0 var(--space-3);
    font-size: 16px;
    border-bottom: 1px solid var(--border);
    border-left: 3px solid transparent;
  }
  .gnav-link[aria-current="page"] { border-bottom: 1px solid var(--border); border-left-color: var(--accent); }
  .gnav-burger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    cursor: pointer;
  }
}

/* Global footer */
.gfooter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--border);
}
.gfooter span, .gfooter a { font: 400 var(--type-caption)/1 var(--font-sans); color: var(--text-3); }
.gfooter a { text-decoration: none; min-height: 44px; display: inline-flex; align-items: center; }
.gfooter a:hover { color: var(--text); }
.gfooter-links { display: flex; gap: var(--space-3); }
@media (max-width: 680px) { .gfooter { padding: var(--space-3); } }