/* ═════════════════════════════════════════════════════════════════
   WORKING FILE — THEME
   Brand Book v1.0 · canonical CSS for every page in the system.

   Path: /css/theme.css (Hugo: static/css/theme.css → served at /css/theme.css)
   Loaded by: every .html page in the site, via <link rel="stylesheet">.
   Source of truth: BRAND.md
   ═════════════════════════════════════════════════════════════════ */


/* ─────────────────────────────────────────────────────────────────
   01 · TOKENS — LIGHT (default)
   ───────────────────────────────────────────────────────────────── */
:root,
[data-theme="light"] {
  /* Surfaces */
  --bg:           #faf7f2;
  --bg-card:      #ffffff;
  --bg-soft:      #f3eee5;

  /* Ink */
  --ink:          #1a1816;
  --ink-2:        #3d3a35;
  --ink-3:        #6b655c;

  /* Lines */
  --line:         #e8e2d8;
  --line-2:       #d8d0c2;

  /* Accent (burgundy) */
  --accent:       #8b3a2f;
  --accent-soft:  #f0d9d2;
  --accent-ink:   #8b3a2f;

  /* Tan (secondary warm) */
  --tan:          #c69568;
  --tan-soft:     #f1e3d2;

  /* Functional — decided / success */
  --green:        #4a6741;
  --green-soft:   #dfe8da;
  --green-ink:    #2f4729;

  /* Functional — in progress / open */
  --amber:        #a87617;
  --amber-soft:   #f3e6c8;
  --amber-ink:    #6f4c0e;

  /* Composed */
  --nav-bg:        rgba(250, 247, 242, 0.92);
  --reco-gradient: linear-gradient(180deg, var(--bg-card) 0%, var(--tan-soft) 200%);
  --shadow-sm:     0 1px 2px rgba(26, 24, 22, 0.04);
  --shadow-md:     0 4px 16px rgba(26, 24, 22, 0.06);

  /* Type stacks */
  --serif:  "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --sans:   "Geist", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:   "JetBrains Mono", "SF Mono", Menlo, monospace;
  --script: "Mrs Saint Delafield", "Snell Roundhand", "Apple Chancery", cursive;
}

/* ─────────────────────────────────────────────────────────────────
   02 · TOKENS — DARK
   ───────────────────────────────────────────────────────────────── */
[data-theme="dark"] {
  --bg:           #16130e;
  --bg-card:      #1f1b15;
  --bg-soft:      #28231b;
  --ink:          #f0e9db;
  --ink-2:        #c4baa8;
  --ink-3:        #897f6e;
  --line:         #322c24;
  --line-2:       #463e34;
  --accent:       #d4897a;
  --accent-soft:  #3a201a;
  --accent-ink:   #ec9f8e;
  --tan:          #d9b287;
  --tan-soft:     #3a2c1d;
  --green:        #9bb585;
  --green-soft:   #2a3a22;
  --green-ink:    #c0d4a8;
  --amber:        #dcb547;
  --amber-soft:   #3a2e14;
  --amber-ink:    #ecc875;
  --nav-bg:        rgba(22, 19, 14, 0.85);
  --reco-gradient: linear-gradient(180deg, var(--bg-card) 0%, var(--tan-soft) 220%);
  --shadow-sm:     0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md:     0 6px 20px rgba(0, 0, 0, 0.5);
}

/* System-preference fallback when no data-theme is set (first paint) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #16130e; --bg-card: #1f1b15; --bg-soft: #28231b;
    --ink: #f0e9db; --ink-2: #c4baa8; --ink-3: #897f6e;
    --line: #322c24; --line-2: #463e34;
    --accent: #d4897a; --accent-soft: #3a201a; --accent-ink: #ec9f8e;
    --tan: #d9b287; --tan-soft: #3a2c1d;
    --green: #9bb585; --green-soft: #2a3a22; --green-ink: #c0d4a8;
    --amber: #dcb547; --amber-soft: #3a2e14; --amber-ink: #ecc875;
    --nav-bg: rgba(22, 19, 14, 0.85);
    --reco-gradient: linear-gradient(180deg, var(--bg-card) 0%, var(--tan-soft) 220%);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.5);
  }
}

/* ─────────────────────────────────────────────────────────────────
   03 · BASE
   ───────────────────────────────────────────────────────────────── */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; transition: background-color 0.25s ease; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
body, .card, .stat, .decision, .nav, .recommendation,
.open-q, .principle, .swatch, .swatch-chip, .page-card {
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

p { margin-bottom: 14px; color: var(--ink-2); }
p:last-child { margin-bottom: 0; }
a { color: var(--accent); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }
code { font-family: var(--mono); font-size: 0.92em; }


/* ─────────────────────────────────────────────────────────────────
   04 · NAV
   ───────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 16px 32px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.nav-brand {
  font-family: var(--serif);
  font-size: 22px;
  font-style: italic;
  color: var(--ink);
  letter-spacing: -0.01em;
  white-space: nowrap;
  text-decoration: none;
}
.nav-brand:hover { color: var(--ink); }
.nav-brand span { color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-links { display: flex; gap: 4px; list-style: none; flex-wrap: wrap; }
.nav-links a {
  display: inline-block;
  padding: 6px 12px;
  text-decoration: none;
  color: var(--ink-2);
  font-size: 13.5px;
  font-weight: 500;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}
.nav-links a:hover { background: var(--bg-soft); color: var(--ink); }

.theme-toggle {
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--ink-2);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.theme-toggle:hover { background: var(--bg-soft); color: var(--ink); border-color: var(--line); }
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .sun  { display: none; }
.theme-toggle .moon { display: block; }
[data-theme="dark"] .theme-toggle .sun  { display: block; }
[data-theme="dark"] .theme-toggle .moon { display: none; }


/* ─────────────────────────────────────────────────────────────────
   05 · LAYOUT
   ───────────────────────────────────────────────────────────────── */
.wrap { max-width: 1200px; margin: 0 auto; padding: 56px 32px 96px; }
.wrap-tight { max-width: 760px; margin: 0 auto; padding: 56px 32px 96px; }


/* ─────────────────────────────────────────────────────────────────
   06 · HERO
   ───────────────────────────────────────────────────────────────── */
.hero { margin-bottom: 40px; }
.hero-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.hero-eyebrow.with-rule {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  letter-spacing: 0.14em;
}
.hero-eyebrow.with-rule::before {
  content: "";
  width: 32px; height: 1px;
  background: var(--accent);
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(44px, 7vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 24px;
  max-width: 900px;
}
.hero h1.display {
  font-size: clamp(64px, 12vw, 144px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  margin-bottom: 18px;
}
.hero h1 em { color: var(--accent); font-style: italic; }
.hero-tagline {
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 32px);
  color: var(--ink-2);
  margin-bottom: 28px;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.hero-tagline em { color: var(--accent); font-style: italic; }
.hero-lede {
  font-size: 18px;
  color: var(--ink-2);
  max-width: 680px;
  line-height: 1.55;
}


/* ─────────────────────────────────────────────────────────────────
   07 · STAT STRIP
   ───────────────────────────────────────────────────────────────── */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 40px;
}
.stat { background: var(--bg-card); padding: 20px 22px; }
.stat-label {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.stat-value {
  font-family: var(--serif);
  font-size: 28px;
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.stat-sub { font-size: 12.5px; color: var(--ink-3); margin-top: 4px; }


/* ─────────────────────────────────────────────────────────────────
   08 · SECTIONS
   ───────────────────────────────────────────────────────────────── */
section { margin-top: 72px; scroll-margin-top: 80px; }

/* Numbered editorial section head (brand-book style) */
.section-head {
  display: flex; align-items: baseline; gap: 14px;
  margin-bottom: 12px;
}
.section-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
  font-weight: 600;
}
.section-head h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(36px, 5vw, 52px);
  letter-spacing: -0.025em;
  color: var(--ink);
  line-height: 1;
}
.section-head h2 em { color: var(--accent); font-style: italic; }
.section-rule {
  height: 1px;
  background: var(--line);
  margin-bottom: 32px;
}
.section-intro {
  color: var(--ink-2);
  max-width: 720px;
  margin-bottom: 40px;
  font-size: 16px;
  line-height: 1.55;
}

/* Simple section head (home-page style) */
.section-head-simple {
  margin-bottom: 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.section-head-simple .sub {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-head-simple h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 32px;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.1;
}

/* Subhead — mono caps with trailing rule */
.subhead {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin: 40px 0 16px;
  display: flex; align-items: center; gap: 12px;
}
.subhead::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

h3 {
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  letter-spacing: -0.005em;
}
h4 {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}


/* ─────────────────────────────────────────────────────────────────
   09 · CARDS
   ───────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px 26px;
  box-shadow: var(--shadow-sm);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 760px) { .two-col { grid-template-columns: 1fr; } }


/* ─────────────────────────────────────────────────────────────────
   10 · RECOMMENDATION
   ───────────────────────────────────────────────────────────────── */
.recommendation {
  background: var(--reco-gradient);
  border: 1px solid var(--line-2);
  border-radius: 12px;
  padding: 36px 40px;
  position: relative;
  overflow: hidden;
}
.recommendation::before {
  content: "";
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 4px;
  background: var(--accent);
}
.reco-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 12px;
  font-weight: 600;
}
.reco-pick {
  font-family: var(--serif);
  font-size: 34px;
  line-height: 1.12;
  color: var(--ink);
  margin-bottom: 14px;
  letter-spacing: -0.015em;
}
.reco-pick em { color: var(--accent); font-style: italic; }
.reco-price {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink-2);
  margin-bottom: 20px;
}
.reco-body { color: var(--ink-2); max-width: 720px; margin-bottom: 22px; font-size: 15.5px; }
.reco-cta {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}
.reco-cta:hover { color: var(--ink); border-bottom-color: var(--ink); }
.reco-cta .arrow { transition: transform 0.2s; }
.reco-cta:hover .arrow { transform: translateX(3px); }


/* ─────────────────────────────────────────────────────────────────
   11 · OPEN QUESTIONS
   ───────────────────────────────────────────────────────────────── */
.open-q {
  background: transparent;
  border-left: 3px solid var(--amber);
  border-radius: 0;
  padding: 8px 0 8px 14px;
  margin-bottom: 12px;
}
.open-q:last-child { margin-bottom: 0; }
.open-q-id {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--amber);
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}
.open-q-q { font-weight: 500; color: var(--ink); font-size: 14.5px; margin-bottom: 2px; line-height: 1.35; }
.open-q-trig { font-size: 12.5px; color: var(--ink-3); }

/* Card-wrapped variant (brand-book uses this) */
.open-q.boxed {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: 6px;
  padding: 14px 18px;
}


/* ─────────────────────────────────────────────────────────────────
   12 · CLEAN LIST
   ───────────────────────────────────────────────────────────────── */
ul.clean { list-style: none; }
ul.clean li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 14.5px;
  display: flex; gap: 12px;
  line-height: 1.4;
}
ul.clean li:last-child { border-bottom: none; padding-bottom: 0; }
ul.clean li::before { content: "→"; color: var(--accent); font-family: var(--mono); flex-shrink: 0; }


/* ─────────────────────────────────────────────────────────────────
   13 · BADGES
   ───────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  gap: 5px;
  font-family: var(--mono);
  font-size: 10.5px;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 500;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.badge.decided   { background: var(--green-soft);  color: var(--green-ink); }
.badge.progress  { background: var(--amber-soft);  color: var(--amber-ink); }
.badge.rejected  { background: var(--accent-soft); color: var(--accent-ink); }
.badge.open      { background: var(--bg-soft);     color: var(--ink-2); }


/* ─────────────────────────────────────────────────────────────────
   14 · DECISION ITEM
   ───────────────────────────────────────────────────────────────── */
.decision {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px 22px;
}
.decision-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.decision-title {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  flex: 1;
}
.decision-id {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  margin-right: 6px;
}
.decision-body { font-size: 14px; color: var(--ink-2); }
.decision-body strong { color: var(--ink); font-weight: 600; }


/* ─────────────────────────────────────────────────────────────────
   15 · PAGE INDEX (home-page directory cards)
   ───────────────────────────────────────────────────────────────── */
.page-index {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 4px;
}
@media (max-width: 760px) { .page-index { grid-template-columns: 1fr; } }

.page-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 26px 30px;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.page-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-2);
  color: inherit;
}
.page-card.featured {
  grid-column: 1 / -1;
  border-left: 3px solid var(--accent);
}
.page-card.draft { opacity: 0.78; }
.page-card.draft:hover { opacity: 1; }

.page-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.page-eyebrow {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.page-status {
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 3px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.page-status.live  { background: var(--green-soft); color: var(--green-ink); }
.page-status.draft { background: var(--bg-soft); color: var(--ink-3); border: 1px dashed var(--line-2); }

.page-title {
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.018em;
  margin-bottom: 10px;
  line-height: 1.08;
}
.page-card.featured .page-title { font-size: 38px; }

.page-desc {
  font-size: 14.5px;
  color: var(--ink-2);
  margin-bottom: 18px;
  line-height: 1.5;
  max-width: 600px;
}

.page-detail {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-3);
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  letter-spacing: 0.02em;
}
.page-detail .arrow {
  color: var(--accent);
  font-size: 16px;
  transition: transform 0.2s;
}
.page-card:hover .page-detail .arrow { transform: translateX(4px); }


/* ─────────────────────────────────────────────────────────────────
   16 · PRINCIPLES GRID (brand-book)
   ───────────────────────────────────────────────────────────────── */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.principle {
  padding: 24px 26px 26px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
}
.principle-num {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.principle-title {
  font-family: var(--serif);
  font-size: 24px;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}
.principle p {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.55;
}


/* ─────────────────────────────────────────────────────────────────
   17 · SWATCHES (brand-book palette)
   ───────────────────────────────────────────────────────────────── */
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 16px;
}
.swatch {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.swatch-chip {
  height: 96px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.swatch-info {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.swatch-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}
.swatch-name {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1;
}
.swatch-token {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.swatch-values {
  padding: 12px 0;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
  margin-bottom: 12px;
}
.swatch-mode {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: baseline;
  gap: 12px;
  font-family: var(--mono);
  padding: 3px 0;
}
.swatch-mode + .swatch-mode { margin-top: 2px; }
.mode-label {
  color: var(--ink-3);
  font-weight: 600;
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.mode-hex { color: var(--ink); font-size: 12px; font-weight: 500; }
.mode-cmyk { color: var(--ink-3); font-size: 10.5px; letter-spacing: 0.02em; }
.swatch-use {
  font-size: 12.5px;
  color: var(--ink-3);
  line-height: 1.5;
  margin-top: auto;
}


/* ─────────────────────────────────────────────────────────────────
   18 · TYPE SCALE (brand-book)
   ───────────────────────────────────────────────────────────────── */
.type-scale { padding: 0; overflow: hidden; }
.type-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  align-items: baseline;
  gap: 24px;
  padding: 22px 28px;
  border-bottom: 1px solid var(--line);
}
.type-row:last-child { border-bottom: none; }
.type-spec {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.4;
}
.type-sample { color: var(--ink); line-height: 1.05; }
.type-sample em { color: var(--accent); font-style: italic; }
@media (max-width: 640px) {
  .type-row { grid-template-columns: 1fr; gap: 8px; padding: 18px 22px; }
}

.emphasis-card { padding: 32px 36px; }
.emphasis-demo {
  font-family: var(--serif);
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 18px 0 22px;
}
.emphasis-demo em { color: var(--accent); font-style: italic; }
.rule-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
}
.rule {
  display: flex;
  gap: 10px;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.45;
}
.rule-mark {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  flex-shrink: 0;
  padding: 1px 7px;
  border-radius: 3px;
  height: fit-content;
}
.rule-mark.do { background: var(--green-soft); color: var(--green-ink); }
.rule-mark.dont { background: var(--accent-soft); color: var(--accent-ink); }


/* ─────────────────────────────────────────────────────────────────
   19 · FOOTER
   ───────────────────────────────────────────────────────────────── */
footer {
  margin-top: 96px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 13px;
}
footer p { color: var(--ink-3); margin-bottom: 6px; }
footer code { font-size: 11.5px; }
.footer-cols {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: baseline;
}
.footer-cols .colophon {
  font-family: var(--serif);
  font-size: 18px;
  font-style: italic;
  color: var(--ink-2);
}
.footer-cols .colophon span { color: var(--accent); }
.footer-cols .meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  text-align: right;
  letter-spacing: 0.04em;
}


/* ─────────────────────────────────────────────────────────────────
   20 · MOBILE
   ───────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .wrap, .wrap-tight { padding: 32px 20px 64px; }
  .nav-inner { padding: 12px 20px; }
  .nav-links { display: none; }
  .recommendation { padding: 24px 24px; }
  .reco-pick { font-size: 26px; }
  .stat-value { font-size: 22px; }
  .page-card { padding: 22px 24px; }
  .page-card.featured .page-title { font-size: 28px; }
  .page-title { font-size: 24px; }
  .swatch-chip { height: 80px; }

  /* WCAG 2.5.5 — touch targets ≥ 44×44 on mobile */
  .theme-toggle { width: 44px; height: 44px; }
}


/* ─────────────────────────────────────────────────────────────────
   21 · ACCESSIBILITY
   Skip-link target, focus visibility, reduced motion.
   ───────────────────────────────────────────────────────────────── */

/* :focus-visible — explicit focus ring for keyboard users.
   Burgundy outline, offset to avoid hugging the element. */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}
.theme-toggle:focus-visible,
.nav-brand:focus-visible,
.nav-links a:focus-visible {
  outline-offset: 2px;
}

/* Skip-to-content link — visually hidden until focused.
   Add <a class="skip-link" href="#main">Skip to content</a> at the
   top of <body> on every page; mark the main region id="main". */
.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  padding: 10px 16px;
  background: var(--bg-card);
  color: var(--ink);
  border: 1px solid var(--line-2);
  border-radius: 0 0 8px 0;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  z-index: 1000;
  transform: translateY(-110%);
  transition: transform 0.15s ease;
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Reduced motion — honour the system preference. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  html { scroll-behavior: auto !important; }
  .page-card:hover { transform: none; }
  .reco-cta:hover .arrow,
  .page-card:hover .page-detail .arrow { transform: none; }
}