/* ═══════════════════════════════════════════════════════════════
   Taiga Projects — shared design tokens
   Source of truth: Claude Design "Taiga Design Reference"
   Direction: "Golden Hour" — warm, cinematic, editorial.

   Copy this file verbatim into every taigaprojects.space subdomain
   so the whole family stays in sync. Do not fork the values.
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Libre+Caslon+Display&family=Libre+Caslon+Text:ital,wght@0,400;0,700;1,400&family=Hanken+Grotesk:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  /* ---- Warm neutral ramp (the brand's spine) ---- */
  --ink-950: #17120E;
  --ink-900: #221A12;
  --ink-800: #2E2418;
  --ink-700: #3D2E20;
  --ink-600: #5A4634;
  --ink-500: #7A6248;
  --ink-400: #9E8468;
  --ink-300: #C3AC92;
  --ink-200: #DDCDB8;
  --ink-100: #ECE2D4;
  --ink-50:  #F6F0E7;
  --paper:   #FBF7F0;
  --white:   #FFFFFF;

  /* ---- Accent: golden-hour amber ---- */
  --amber-700: #A8521F;
  --amber-600: #C8642B;
  --amber-500: #E07A3C;
  --amber-400: #ED915A;
  --amber-300: #F4B582;
  --amber-100: #FBE4CF;
  --gold-400:  #E3B25A;

  /* ---- Semantic status (warm/earthy) ---- */
  --moss-500:  #6E8B3D;
  --moss-100:  #E7EDD6;
  --honey-500: #E3A23C;
  --honey-100: #FBEDCF;
  --rust-500:  #C7472F;
  --rust-100:  #F7DCD3;

  /* ---- Semantic aliases ---- */
  --bg:              var(--paper);
  --surface:         var(--white);
  --surface-sunken:  var(--ink-50);
  --surface-inverse: var(--ink-950);

  --text-primary:   var(--ink-900);
  --text-secondary: var(--ink-600);
  --text-muted:     var(--ink-400);
  --text-on-dark:   var(--ink-50);
  --text-on-accent: var(--paper);
  --text-link:      var(--amber-600);

  --border:         var(--ink-200);
  --border-strong:  var(--ink-300);
  --border-inverse: rgba(246, 240, 231, 0.16);

  --accent:       var(--amber-500);
  --accent-hover: var(--amber-600);
  --accent-press: var(--amber-700);
  --accent-soft:  var(--amber-100);
  --accent-text:  var(--amber-700);
  --focus-ring:   rgba(224, 122, 60, 0.45);

  /* ---- Families ---- */
  --font-display: 'Libre Caslon Display', Georgia, 'Times New Roman', serif;
  --font-serif:   'Libre Caslon Text', Georgia, serif;
  --font-sans:    'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* ---- Type scale (1.250 major third) ---- */
  --text-3xs: 0.694rem;
  --text-2xs: 0.75rem;
  --text-xs:  0.833rem;
  --text-sm:  0.9375rem;
  --text-md:  1rem;
  --text-lg:  1.25rem;
  --text-xl:  1.563rem;
  --text-2xl: 1.953rem;
  --text-3xl: 2.441rem;
  --text-4xl: 3.052rem;
  --text-5xl: 3.815rem;
  --text-6xl: 4.768rem;

  /* ---- Weights ---- */
  --fw-regular:  400;
  --fw-medium:   500;
  --fw-semibold: 600;
  --fw-bold:     700;
  --fw-black:    800;

  /* ---- Line heights ---- */
  --lh-tight:   1.05;
  --lh-snug:    1.2;
  --lh-normal:  1.5;
  --lh-relaxed: 1.65;

  /* ---- Letter spacing ---- */
  --tracking-tight:  -0.02em;
  --tracking-normal: 0;
  --tracking-wide:   0.04em;
  --tracking-label:  0.18em;

  /* ---- Spacing (4px base) ---- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* ---- Radius ---- */
  --radius-xs:   2px;
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   18px;
  --radius-full: 999px;

  /* ---- Shadows (warm-tinted, light from above) ---- */
  --shadow-xs: 0 1px 2px rgba(34, 26, 18, 0.06);
  --shadow-sm: 0 2px 6px rgba(34, 26, 18, 0.08);
  --shadow-md: 0 8px 20px rgba(34, 26, 18, 0.10);
  --shadow-lg: 0 18px 44px rgba(34, 26, 18, 0.16);
  --shadow-accent: 0 10px 28px rgba(200, 100, 43, 0.28);

  /* ---- Motion (calm, no bounce) ---- */
  --ease-out:   cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-inout: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast:   140ms;
  --dur-base:   220ms;
  --dur-slow:   420ms;

  /* ---- Layout ---- */
  --container:        1120px;
  --container-narrow: 680px;
  --gutter:           64px;
  --header-h:         64px;
}

@media (max-width: 720px) {
  :root { --gutter: 24px; }
}

/* ═══ base ═══ */

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--lh-normal);
  color: var(--text-primary);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: var(--fw-regular);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
  margin: 0;
}

p { margin: 0; text-wrap: pretty; }

a { color: var(--text-link); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

::selection { background: var(--amber-100); color: var(--ink-900); }

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

/* Uppercase eyebrow / kicker */
.eyebrow {
  font-family: var(--font-sans);
  font-size: var(--text-2xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--accent-text);
}

/* ═══ shared chrome — identical on every subdomain ═══ */

.taiga-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 var(--gutter);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.taiga-header.on-dark {
  background: var(--ink-950);
  border-bottom-color: var(--border-inverse);
}

.taiga-brand { display: flex; align-items: baseline; gap: 14px; }
.taiga-brand a { text-decoration: none; }
.taiga-brand .wordmark {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  letter-spacing: var(--tracking-tight);
  color: var(--ink-900);
}
.taiga-header.on-dark .wordmark { color: var(--ink-50); }
.taiga-brand .rule {
  width: 1px; height: 20px;
  background: var(--border-strong);
  align-self: center;
}
.taiga-header.on-dark .rule { background: var(--border-inverse); }
.taiga-brand .crumb {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}
.taiga-header.on-dark .crumb { color: var(--ink-300); }

.taiga-nav { display: flex; align-items: center; gap: 22px; }
.taiga-nav .back {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--dur-base) var(--ease-out);
}
.taiga-nav .back:hover { color: var(--accent-text); text-decoration: none; }
.taiga-header.on-dark .back { color: var(--ink-300); }
.taiga-header.on-dark .back:hover { color: var(--amber-300); }

.taiga-chip {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--amber-700);
  background: var(--accent-soft);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.taiga-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding: 26px var(--gutter);
  background: var(--ink-950);
}
.taiga-footer .made {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--ink-100);
  letter-spacing: var(--tracking-tight);
}
.taiga-footer .home {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--amber-300);
  text-decoration: none;
}
.taiga-footer .home:hover { color: var(--amber-100); }

/* The chip is the first thing to hide on narrow screens. */
@media (max-width: 720px) {
  .taiga-chip { display: none; }
}

/* ═══ buttons ═══ */

.taiga-btn {
  font-family: var(--font-sans);
  font-weight: var(--fw-bold);
  font-size: var(--text-sm);
  color: var(--text-on-accent);
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 13px 24px;
  cursor: pointer;
  box-shadow: var(--shadow-accent);
  transition: background var(--dur-base) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.taiga-btn:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.taiga-btn:active { background: var(--accent-press); transform: translateY(1px); }

.taiga-btn.secondary {
  color: var(--ink-900);
  background: var(--surface);
  border-color: var(--border-strong);
  box-shadow: none;
}
.taiga-btn.secondary:hover { background: var(--surface-sunken); border-color: var(--ink-400); }

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 1ms !important; animation-duration: 1ms !important; }
}