/* ============================================================
   Wicked Evolutions — Documentation Prototype
   Fonts: Spectral (body serif) · Syne (display) · JetBrains Mono
   
   LAYOUT — measured live from code.claude.com/docs
     Topbar 64px + tab strip 48px = 112px total header
     Sidebar 273px · Content max 740px · TOC 240px
     Content padding: 48px x, 40px top
     Breakpoints: 1280px (no TOC), 1024px, 768px (mobile)

   MODES — dark default + light via .light class or prefers
     Dark:  #0e0e10 base · amber accent #c9a84c
     Light: "Warm Slate" — slate-tinted parchment, not cream
            Background: #F2EFE9 (greige — grey + beige, distinctive)
            Accent adapts: amber → deep amber #A0761A (readable)

   FONT SIZES — minimum 18px body, 19-20px prose target
     html base: 18px (was 16px)
     Prose p: 1.1rem = ~20px
     Nav items stay 14px (UI chrome)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Spectral:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Syne:wght@500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Dark mode tokens (default) ─────────────────────────────── */
:root {
  --bg-base:      #0e0e10;
  --bg-surface:   #141416;
  --bg-raised:    #1a1a1e;
  --bg-overlay:   #222228;

  --border-subtle:  rgba(255,255,255,0.06);
  --border-default: rgba(255,255,255,0.10);
  --border-strong:  rgba(255,255,255,0.20);

  --text-primary:   #e8e6e0;   /* near-white warm — headings, strong text */
  --text-secondary: #cccac4;   /* warm light grey — body prose */
  --text-muted:     #7a7874;   /* labels, meta, placeholders */

  /* Accent: warm amber */
  --accent:       #c9a84c;
  --accent-dim:   rgba(201,168,76,0.14);
  --accent-glow:  rgba(201,168,76,0.07);
  --accent-text:  #c9a84c;

  /* Category colours — dark mode */
  --cat-module:   #5aaedc;
  --cat-skill:    #6bba6e;
  --cat-agent:    #d47898;
  --cat-workflow: #9b7dd4;
  --cat-protocol: #d4924c;
  --cat-changelog:#a8d44c;

  --tag-bg:     rgba(255,255,255,0.06);
  --tag-border: rgba(255,255,255,0.10);
  --tag-text:   #9e9c98;

  --topbar-bg: rgba(14,14,16,0.95);

  --font-display: 'Syne', sans-serif;
  --font-body:    'Spectral', serif;
  --font-mono:    'JetBrains Mono', monospace;

  --sidebar-width:   273px;
  --content-max:     740px;
  --toc-width:       240px;
  --content-pad-x:   48px;
  --content-pad-top: 40px;
  --topbar-height:   64px;
  --tabstrip-height: 48px;
  --header-total:   112px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Light mode tokens ──────────────────────────────────────────
   "Warm Greige" — #F2EFE9 base. Grey-beige hybrid.
   Cooler undertone than Anthropic's yellow-cream.
   Accent: deep amber-bronze #8B6914 — WCAG AA on light bg.
   Category colours all darkened for light readability.
   Tag system uses dark-on-light rgba values.
────────────────────────────────────────────────────────────────── */
.light,
[data-theme="light"] {
  --bg-base:      #F2EFE9;
  --bg-surface:   #EAE6DF;
  --bg-raised:    #E2DDD5;
  --bg-overlay:   #D8D3C9;

  --border-subtle:  rgba(50,44,36,0.08);
  --border-default: rgba(50,44,36,0.14);
  --border-strong:  rgba(50,44,36,0.24);

  --text-primary:   #1C1915;
  --text-secondary: #2E2A24;
  --text-muted:     #7A7268;

  --accent:       #8B6914;   /* ~5.8:1 contrast on #F2EFE9 */
  --accent-dim:   rgba(139,105,20,0.10);
  --accent-glow:  rgba(139,105,20,0.06);
  --accent-text:  #7A5C10;

  /* Category colours — darkened for light bg readability */
  --cat-module:   #1A6E9A;   /* blue    · channels: 26,110,154 */
  --cat-skill:    #1A6E32;   /* green   · channels: 26,110,50  */
  --cat-agent:    #8B2252;   /* rose    · channels: 139,34,82  */
  --cat-workflow: #5C1EA0;   /* purple  · channels: 92,30,160  */
  --cat-protocol: #8B4A14;   /* orange  · channels: 139,74,20  */
  --cat-changelog:#4A7A14;   /* lime    · channels: 74,122,20  */

  --tag-bg:     rgba(50,44,36,0.06);
  --tag-border: rgba(50,44,36,0.14);
  --tag-text:   #5A5248;

  --topbar-bg: rgba(242,239,233,0.95);
}

/* ── System preference fallback ────────────────────────────── */
@media (prefers-color-scheme: light) {
  :root:not(.dark) {
    --bg-base:      #F2EFE9;
    --bg-surface:   #EAE6DF;
    --bg-raised:    #E2DDD5;
    --bg-overlay:   #D8D3C9;
    --border-subtle:  rgba(50,44,36,0.08);
    --border-default: rgba(50,44,36,0.14);
    --border-strong:  rgba(50,44,36,0.24);
    --text-primary:   #1C1915;
    --text-secondary: #2E2A24;
    --text-muted:     #7A7268;
    --accent:       #8B6914;
    --accent-dim:   rgba(139,105,20,0.10);
    --accent-glow:  rgba(139,105,20,0.06);
    --accent-text:  #7A5C10;
    --cat-module:   #1A6E9A;
    --cat-skill:    #1A6E32;
    --cat-agent:    #8B2252;
    --cat-workflow: #5C1EA0;
    --cat-protocol: #8B4A14;
    --cat-changelog:#4A7A14;
    --tag-bg:     rgba(50,44,36,0.06);
    --tag-border: rgba(50,44,36,0.14);
    --tag-text:   #5A5248;
    --topbar-bg: rgba(242,239,233,0.95);
  }
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  font-size: 18px;
  scroll-behavior: smooth;
}
body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  transition: background .25s var(--ease), color .25s var(--ease);
}
a { color: var(--accent); text-decoration: none; transition: opacity .15s; }
a:hover { opacity: .75; }

/* ── Theme toggle button ────────────────────────────────────── */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-default);
  color: var(--text-muted);
  cursor: pointer;
  width: 32px; height: 32px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  transition: border-color .15s, color .15s, background .15s;
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}
.theme-toggle .icon-moon  { display: block; }
.theme-toggle .icon-sun   { display: none;  }
.light .theme-toggle .icon-moon { display: none;  }
.light .theme-toggle .icon-sun  { display: block; }

/* ── Row 1: Topbar (64px) ───────────────────────────────────── */
.topbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--topbar-height);
  background: var(--topbar-bg);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex; align-items: center;
  padding: 0 1.5rem;
  z-index: 100; gap: 1.25rem;
  transition: background .25s var(--ease);
}
.topbar-logo {
  font-family: var(--font-display); font-size: .875rem; font-weight: 700;
  letter-spacing: .04em; color: var(--text-primary);
  display: flex; align-items: center; gap: .5rem; flex-shrink: 0;
}
.topbar-logo span.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); display: inline-block;
  transition: background .25s;
}
.topbar-divider { width: 1px; height: 20px; background: var(--border-default); flex-shrink: 0; }
.topbar-section {
  font-size: .6875rem; font-family: var(--font-display); font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted);
}
.topbar-nav { margin-left: auto; display: flex; align-items: center; gap: .875rem; }
.topbar-nav a {
  font-family: var(--font-display); font-size: .75rem; font-weight: 600;
  letter-spacing: .03em; color: var(--text-secondary); transition: color .15s;
}
.topbar-nav a:hover { color: var(--text-primary); opacity: 1; }
.topbar-version {
  font-family: var(--font-mono); font-size: .6875rem; color: var(--text-muted);
  padding: .2em .6em; background: var(--bg-raised);
  border: 1px solid var(--border-subtle); border-radius: 4px;
}
.sidebar-toggle {
  display: none; background: none; border: 1px solid var(--border-default);
  color: var(--text-secondary); cursor: pointer; padding: .3rem .6rem;
  border-radius: 6px; font-size: .75rem; font-family: var(--font-display);
  font-weight: 600; letter-spacing: .04em; margin-right: .5rem;
}

/* ── Row 2: Tab Strip (48px) ────────────────────────────────── */
.tabstrip {
  position: fixed; top: var(--topbar-height); left: 0; right: 0;
  height: var(--tabstrip-height);
  background: var(--topbar-bg);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex; align-items: stretch;
  padding: 0 1.5rem; z-index: 99; gap: 0;
  transition: background .25s var(--ease);
}
.tabstrip-link {
  font-family: var(--font-display); font-size: .8125rem; font-weight: 500;
  color: var(--text-muted);
  display: flex; align-items: center; padding: 0 1rem;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
  white-space: nowrap; position: relative; top: 1px;
}
.tabstrip-link:hover { color: var(--text-secondary); opacity: 1; }
.tabstrip-link.active {
  color: var(--text-primary); border-bottom-color: var(--accent);
  font-weight: 600; opacity: 1;
}

/* ── Page Layout ────────────────────────────────────────────── */
.page-layout {
  display: flex;
  padding-top: var(--header-total);
  min-height: 100vh;
}

/* ── Left Sidebar (273px) ───────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0; position: fixed;
  top: var(--header-total); bottom: 0; left: 0;
  overflow-y: auto;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  padding: 1.25rem 0 3rem;
  z-index: 50; transition: transform .3s var(--ease), background .25s var(--ease);
}
.sidebar::-webkit-scrollbar { width: 3px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-default); border-radius: 2px; }

.sidebar-search { padding: 0 .875rem 1rem; border-bottom: 1px solid var(--border-subtle); margin-bottom: .875rem; }
.sidebar-search input {
  width: 100%; background: var(--bg-raised);
  border: 1px solid var(--border-default); color: var(--text-primary);
  font-family: var(--font-mono); font-size: .75rem;
  padding: .45rem .75rem; border-radius: 8px; outline: none;
  transition: border-color .2s;
}
.sidebar-search input::placeholder { color: var(--text-muted); }
.sidebar-search input:focus { border-color: var(--accent); }

.nav-section { margin-bottom: 0; }
.nav-section-label {
  font-family: var(--font-display); font-size: .75rem; font-weight: 700;
  color: var(--text-secondary);
  padding: 1rem 1rem .375rem 1rem; display: block;
}

.nav-item {
  display: block; padding: 6px 12px 6px 16px;
  font-size: .8125rem;
  line-height: 1.5; color: var(--text-secondary);
  transition: color .15s, background .15s;
  border-radius: 8px; margin: 0 8px;
}
.nav-item:hover { color: var(--text-primary); background: var(--accent-glow); opacity: 1; }
.nav-item.active { color: var(--accent); background: var(--accent-dim); opacity: 1; }
.nav-item.level-2 { padding-left: 28px; font-size: .75rem; }
.nav-item.level-3 { padding-left: 40px; font-size: .7rem; }
.nav-group { border-top: 1px solid var(--border-subtle); margin-top: .75rem; padding-top: .375rem; }
.nav-item .cat-dot {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  margin-right: .5rem; vertical-align: middle;
  position: relative; top: -1px; flex-shrink: 0;
}

/* ── Main content ───────────────────────────────────────────── */
.main-content { margin-left: var(--sidebar-width); flex: 1; min-width: 0; display: flex; }
.content-with-toc { flex: 1; min-width: 0; display: flex; gap: 0; }

.article {
  flex: 1; min-width: 0; max-width: var(--content-max);
  padding: var(--content-pad-top) var(--content-pad-x) 5rem;
}
.landing-article {
  flex: 1; min-width: 0;
  padding: var(--content-pad-top) var(--content-pad-x) 5rem;
}

/* ── Right TOC Rail (240px) ─────────────────────────────────── */
.toc-rail {
  width: var(--toc-width); flex-shrink: 0; position: sticky;
  top: var(--header-total); align-self: flex-start;
  max-height: calc(100vh - var(--header-total));
  overflow-y: auto; padding: var(--content-pad-top) 1.25rem 2rem 1rem;
}
.toc-label {
  font-family: var(--font-display); font-size: .6875rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: .75rem; display: block;
}
.toc-list { list-style: none; }
.toc-item { margin-bottom: .1rem; }
.toc-item a {
  font-size: .8125rem; font-family: var(--font-display); font-weight: 500;
  color: var(--text-muted); display: block;
  padding: .25rem 0 .25rem .75rem;
  border-left: 1px solid var(--border-subtle);
  transition: color .15s, border-color .15s; line-height: 1.4;
}
.toc-item a:hover { color: var(--text-primary); opacity: 1; }
.toc-item a.active { color: var(--accent); border-left-color: var(--accent); }
.toc-item.level-3 a { padding-left: 1.5rem; font-size: .75rem; }

/* ── Typography ─────────────────────────────────────────────── */
.article h1, .landing-article h1 {
  font-family: var(--font-display);
  font-size: 1.875rem;
  font-weight: 800; line-height: 1.15; letter-spacing: -0.03em;
  color: var(--text-primary); margin-bottom: .5rem;
}
.article h2, .landing-article h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700; line-height: 1.3; letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-top: 3rem; margin-bottom: 1rem;
  padding-bottom: .5rem; border-bottom: 1px solid var(--border-subtle);
}
.article h3, .landing-article h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600; line-height: 1.4; color: var(--text-primary);
  margin-top: 2rem; margin-bottom: .5rem;
}
.article h4, .landing-article h4 {
  font-family: var(--font-display); font-size: .9rem;
  font-weight: 700; color: var(--text-muted);
  margin-top: 1.5rem; margin-bottom: .4rem;
  text-transform: uppercase; letter-spacing: .07em;
}
.article p, .landing-article p {
  margin-bottom: 1.375rem;
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.72;
}
.article ul, .article ol {
  padding-left: 1.5rem; margin-bottom: 1.375rem;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.72;
}
.article li { margin-bottom: .4rem; }

/* ── Post Header ────────────────────────────────────────────── */
.post-header { margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border-subtle); }
.post-meta { display: flex; align-items: center; gap: .75rem; margin-bottom: .75rem; flex-wrap: wrap; }
.category-badge {
  font-family: var(--font-display); font-size: .625rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; padding: .25em .7em; border-radius: 4px;
}

/* ── Category badges — dark mode default ────────────────────────
   These background/border RGBA values use dark-mode hue channels.
   They are re-declared in the light-mode override block below.
   Never try to make these work on both — let the override handle it.
──────────────────────────────────────────────────────────────── */
.badge-module   { background: rgba(76,155,201,0.12); color: var(--cat-module); border: 1px solid rgba(76,155,201,0.22); }
.badge-skill    { background: rgba(107,186,110,0.12); color: var(--cat-skill);  border: 1px solid rgba(107,186,110,0.22); }
.badge-agent    { background: rgba(201,107,138,0.12); color: var(--cat-agent);  border: 1px solid rgba(201,107,138,0.22); }
.badge-workflow { background: rgba(139,107,201,0.12); color: var(--cat-workflow); border: 1px solid rgba(139,107,201,0.22); }
.badge-protocol { background: rgba(201,139,76,0.12); color: var(--cat-protocol); border: 1px solid rgba(201,139,76,0.22); }

.post-date { font-family: var(--font-mono); font-size: .75rem; color: var(--text-muted); }
.post-tagline {
  font-size: 1.15rem; font-style: italic;
  color: var(--text-secondary); margin-top: .5rem; line-height: 1.6;
}

/* ── Tags ───────────────────────────────────────────────────── */
.tag-list { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .875rem; }
.tag {
  font-family: var(--font-mono); font-size: .75rem; color: var(--tag-text);
  background: var(--tag-bg); border: 1px solid var(--tag-border);
  padding: .2em .65em; border-radius: 4px; transition: color .15s, border-color .15s;
}
.tag:hover { color: var(--text-primary); border-color: var(--border-strong); opacity: 1; }

/* ── Ability Table ──────────────────────────────────────────── */
.ability-table-wrap { overflow-x: auto; margin: 1.75rem 0; border: 1px solid var(--border-default); border-radius: 8px; }
table.ability-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
table.ability-table thead tr { background: var(--bg-raised); border-bottom: 1px solid var(--border-default); }
table.ability-table th {
  font-family: var(--font-display); font-size: .6875rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted);
  padding: .75rem 1rem; text-align: left;
}
table.ability-table td {
  padding: .7rem 1rem; border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary); vertical-align: top; line-height: 1.55;
  font-size: .95rem;
}
table.ability-table tr:last-child td { border-bottom: none; }
table.ability-table tr:hover td { background: var(--bg-raised); }
.ability-name { font-family: var(--font-mono); font-size: .875rem; color: var(--text-primary); white-space: nowrap; }
.type-badge { font-family: var(--font-mono); font-size: .7rem; padding: .1em .5em; border-radius: 3px; font-weight: 500; }
/* Dark-mode defaults — re-declared in light override block */
.type-r { background: rgba(76,155,201,0.12); color: var(--cat-module); }
.type-w { background: rgba(201,168,76,0.12); color: var(--accent); }
.type-d { background: rgba(201,107,138,0.12); color: var(--cat-agent); }

/* ── Stats Bar ──────────────────────────────────────────────── */
.stats-bar {
  display: flex; gap: 1.5rem; background: var(--bg-raised);
  border: 1px solid var(--border-default); border-radius: 8px;
  padding: 1rem 1.25rem; margin: 1.25rem 0 1.75rem;
}
.stat { display: flex; flex-direction: column; gap: .15rem; }
.stat-value { font-family: var(--font-display); font-size: 1.5rem; font-weight: 800; color: var(--text-primary); line-height: 1; }
.stat-label { font-family: var(--font-display); font-size: .6875rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); }
.stat.read   .stat-value { color: var(--cat-module); }
.stat.write  .stat-value { color: var(--accent); }
.stat.delete .stat-value { color: var(--cat-agent); }

/* ── Callout ─────────────────────────────────────────────────── */
.callout {
  border-left: 3px solid var(--accent); background: var(--accent-dim);
  padding: .875rem 1.125rem; border-radius: 0 6px 6px 0; margin: 1.5rem 0;
  font-size: 1rem; color: var(--text-secondary); line-height: 1.65;
}
/* Dark-mode warn bg — re-declared in light override block */
.callout.warn { border-left-color: var(--cat-agent); background: rgba(201,107,138,0.08); }
.callout strong {
  font-family: var(--font-display); font-size: .6875rem; font-weight: 700;
  letter-spacing: .07em; text-transform: uppercase;
  display: block; margin-bottom: .375rem; color: var(--accent);
}
.callout.warn strong { color: var(--cat-agent); }

/* ── Code ───────────────────────────────────────────────────── */
code {
  font-family: var(--font-mono); font-size: .875em;
  background: var(--bg-overlay); padding: .15em .45em;
  border-radius: 4px; color: var(--accent);
}
pre {
  background: var(--bg-raised); border: 1px solid var(--border-default);
  border-radius: 8px; padding: 1.375rem; overflow-x: auto; margin: 1.5rem 0;
  font-family: var(--font-mono); font-size: .9rem; line-height: 1.7;
  color: var(--text-secondary);
}
pre code { background: none; padding: 0; color: inherit; font-size: inherit; }

/* ── Step List ──────────────────────────────────────────────── */
.step-list { list-style: none; padding: 0; margin: 1.75rem 0; }
.step-item { display: flex; gap: 1.125rem; margin-bottom: 1.5rem; align-items: flex-start; }
.step-number {
  flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%;
  background: var(--bg-overlay); border: 1px solid var(--border-default);
  font-family: var(--font-display); font-size: .75rem; font-weight: 700;
  color: var(--accent); display: flex; align-items: center; justify-content: center;
  margin-top: .1rem;
}
.step-body { flex: 1; min-width: 0; }
.step-title { font-family: var(--font-display); font-weight: 700; font-size: 1rem; color: var(--text-primary); margin-bottom: .375rem; }
.step-abilities { margin-top: .625rem; display: flex; flex-wrap: wrap; gap: .375rem; }
.ability-chip {
  font-family: var(--font-mono); font-size: .8125rem; background: var(--bg-overlay);
  border: 1px solid var(--border-default); color: var(--text-secondary);
  padding: .2em .6em; border-radius: 4px;
}

/* ── Permission / Lane badges ───────────────────────────────── */
.perm-badge { font-family: var(--font-display); font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; padding: .3em .8em; border-radius: 5px; }
/* Dark-mode defaults — re-declared in light override block */
.perm-read-only  { background: rgba(107,186,110,0.12); color: var(--cat-skill);   border: 1px solid rgba(107,186,110,0.25); }
.perm-read-write { background: rgba(201,168,76,0.12);  color: var(--accent);      border: 1px solid rgba(201,168,76,0.25);  }
.lane-chips { display: flex; gap: .5rem; flex-wrap: wrap; margin: .5rem 0; }
.lane-chip { font-family: var(--font-display); font-size: .7rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; padding: .25em .75em; border-radius: 4px; border: 1px solid; }
/* Dark-mode defaults — re-declared in light override block */
.lane-content  { color: var(--cat-module);   border-color: rgba(76,155,201,.3);  background: rgba(76,155,201,.07);  }
.lane-structure{ color: var(--cat-workflow); border-color: rgba(139,107,201,.3); background: rgba(139,107,201,.07); }
.lane-system   { color: var(--cat-changelog);border-color: rgba(158,201,76,.3);  background: rgba(158,201,76,.07);  }

/* ── Agent Rule List ────────────────────────────────────────── */
.rule-list { list-style: none; padding: 0; margin: 1.25rem 0; }
.rule-item {
  display: flex; align-items: flex-start; gap: .875rem;
  padding: .75rem 0; border-bottom: 1px solid var(--border-subtle);
  font-size: 1rem; color: var(--text-secondary); line-height: 1.6;
}
.rule-item:last-child { border-bottom: none; }
.rule-icon { width: 20px; height: 20px; flex-shrink: 0; margin-top: .15rem; opacity: .7; }

/* ── Related / Card grids ───────────────────────────────────── */
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: .875rem; margin: 1.25rem 0; }
.related-card {
  background: var(--bg-raised); border: 1px solid var(--border-default);
  border-radius: 8px; padding: 1rem;
  transition: border-color .2s, background .2s; display: block; color: var(--text-primary);
}
.related-card:hover { border-color: var(--border-strong); background: var(--bg-overlay); opacity: 1; }
.related-card-title { font-family: var(--font-display); font-size: .9375rem; font-weight: 600; color: var(--text-primary); margin-bottom: .3rem; line-height: 1.3; }
.related-card-meta { font-size: .8rem; color: var(--text-muted); font-family: var(--font-mono); }

/* ── Landing: Hero ──────────────────────────────────────────── */
.landing-hero { padding: var(--content-pad-top) 0 2.5rem; border-bottom: 1px solid var(--border-subtle); margin-bottom: 3rem; max-width: 680px; }
.landing-hero .eyebrow {
  font-family: var(--font-display); font-size: .7rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: var(--accent);
  margin-bottom: .875rem; display: flex; align-items: center; gap: .5rem;
}
.landing-hero .eyebrow::before { content: ''; display: inline-block; width: 24px; height: 1px; background: var(--accent); }
.landing-hero h1 { font-size: 2.667rem; line-height: 1.1; margin-bottom: 1.125rem; }
.landing-hero .subtitle { font-size: 1.15rem; color: var(--text-secondary); line-height: 1.72; max-width: 560px; }

/* ── Quick links / product cards ───────────────────────────── */
.quick-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 2rem 0 3rem; }
.quick-link-card {
  background: var(--bg-surface); border: 1px solid var(--border-default);
  border-radius: 10px; padding: 1.375rem; display: block;
  transition: border-color .2s, background .2s, transform .2s var(--ease);
  color: var(--text-primary);
}
.quick-link-card:hover { border-color: var(--accent); background: var(--accent-glow); transform: translateY(-2px); opacity: 1; }
.ql-icon { font-size: 1.5rem; margin-bottom: .6rem; display: block; }
.ql-title { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: .375rem; }
.ql-desc { font-size: .9375rem; color: var(--text-muted); line-height: 1.55; }

.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin: 1.5rem 0; }
.product-card {
  background: var(--bg-raised); border: 1px solid var(--border-default);
  border-radius: 10px; padding: 1.375rem; display: block;
  transition: border-color .2s, background .2s; color: var(--text-primary);
}
.product-card:hover { border-color: var(--border-strong); background: var(--bg-overlay); opacity: 1; }
.pc-label { font-family: var(--font-display); font-size: .6875rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: .5rem; }
.pc-title { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: .4rem; }
.pc-count { font-family: var(--font-mono); font-size: .875rem; color: var(--accent); margin-bottom: .5rem; }
.pc-desc { font-size: .9375rem; color: var(--text-muted); line-height: 1.55; }

/* ── Architecture diagram ───────────────────────────────────── */
.arch-diagram {
  background: var(--bg-raised); border: 1px solid var(--border-default);
  border-radius: 8px; padding: 1.375rem 1.625rem; font-family: var(--font-mono);
  font-size: .875rem; color: var(--text-secondary); line-height: 1.85;
  overflow-x: auto; margin: 1.5rem 0;
}

/* ── Category Archive ───────────────────────────────────────── */
.archive-header { margin-bottom: 2.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border-subtle); }
.archive-filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.25rem; }
.filter-chip {
  font-family: var(--font-display); font-size: .8rem; font-weight: 600;
  padding: .35em .9em; border-radius: 20px; border: 1px solid var(--border-default);
  background: var(--bg-raised); color: var(--text-secondary); cursor: pointer;
  transition: all .15s; letter-spacing: .03em;
}
.filter-chip:hover { border-color: var(--accent); color: var(--accent); }
.filter-chip.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.filter-label { font-family: var(--font-display); font-size: .6875rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); align-self: center; margin-right: .25rem; }

.post-list { display: flex; flex-direction: column; gap: 1px; background: var(--border-subtle); border: 1px solid var(--border-default); border-radius: 10px; overflow: hidden; }
.post-list-item {
  background: var(--bg-surface); padding: 1.125rem 1.375rem;
  display: flex; gap: 1.25rem; align-items: flex-start;
  transition: background .15s; text-decoration: none; color: inherit;
}
.post-list-item:hover { background: var(--bg-raised); }
.pli-icon { width: 38px; height: 38px; border-radius: 8px; background: var(--bg-overlay); border: 1px solid var(--border-default); flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: .95rem; color: var(--cat-skill); }
.pli-body { flex: 1; min-width: 0; }
.pli-title { font-family: var(--font-display); font-size: 1rem; font-weight: 600; color: var(--text-primary); margin-bottom: .25rem; line-height: 1.35; }
.pli-excerpt { font-size: .9375rem; color: var(--text-muted); line-height: 1.5; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pli-meta { display: flex; align-items: center; gap: .5rem; margin-top: .5rem; flex-wrap: wrap; }
.pli-date { font-family: var(--font-mono); font-size: .75rem; color: var(--text-muted); }
.pli-right { flex-shrink: 0; display: flex; flex-direction: column; align-items: flex-end; gap: .4rem; padding-top: .1rem; }

/* ── Breadcrumb ─────────────────────────────────────────────── */
.breadcrumb { font-family: var(--font-display); font-size: .8rem; color: var(--text-muted); margin-bottom: 1.5rem; display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); opacity: 1; }
.breadcrumb .sep { color: var(--border-strong); }
.breadcrumb .current { color: var(--text-secondary); }

/* ── Post navigation ────────────────────────────────────────── */
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 3.5rem; padding-top: 2rem; border-top: 1px solid var(--border-subtle); }
.post-nav-item { background: var(--bg-raised); border: 1px solid var(--border-default); border-radius: 8px; padding: 1rem 1.125rem; display: block; transition: border-color .2s; color: inherit; }
.post-nav-item:hover { border-color: var(--border-strong); opacity: 1; }
.post-nav-item.next { text-align: right; }
.pn-label { font-family: var(--font-display); font-size: .6875rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); display: block; margin-bottom: .3rem; }
.pn-title { font-family: var(--font-display); font-size: .9375rem; font-weight: 600; color: var(--text-primary); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1280px) { .toc-rail { display: none; } }

@media (max-width: 1024px) {
  :root { --content-pad-x: 32px; }
}

@media (max-width: 768px) {
  .tabstrip { display: none; }
  .page-layout { padding-top: var(--topbar-height); }
  .sidebar { top: var(--topbar-height); transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: 0 0 40px rgba(0,0,0,.5); }
  .main-content { margin-left: 0; }
  .article, .landing-article { padding: 1.5rem 1.25rem 3rem; }
  .quick-links { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .sidebar-toggle { display: block; }
  .post-nav { grid-template-columns: 1fr; }
  .stats-bar { flex-wrap: wrap; gap: 1rem; }
  .article h1, .landing-article h1 { font-size: 1.5rem; }
  .article p, .landing-article p { font-size: 1.05rem; }
}

/* ── Sidebar backdrop (mobile) ──────────────────────────────── */
.sidebar-backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 49; }
.sidebar-backdrop.visible { display: block; }

/* ── Prototype Bottom Nav ───────────────────────────────────────
   Persistent bar at the bottom of every prototype page.
   Brand-styled using the docs token system.
   Left: page links. Right: dark/light toggle.
   Hidden on mobile (desktop prototype tool only).
────────────────────────────────────────────────────────────────── */
.proto-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 44px;
  background: var(--bg-overlay);
  border-top: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  padding: 0 1.25rem;
  z-index: 200;
  gap: 0;
  font-family: var(--font-mono);
}

.proto-nav-pages {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}
.proto-nav-pages::-webkit-scrollbar { display: none; }

.proto-nav-link {
  font-family: var(--font-mono);
  font-size: .6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 0 .875rem;
  height: 44px;
  display: flex;
  align-items: center;
  border-right: 1px solid var(--border-subtle);
  white-space: nowrap;
  transition: color .15s, background .15s;
  text-decoration: none;
}
.proto-nav-link:hover { color: var(--text-primary); background: var(--accent-glow); opacity: 1; }
.proto-nav-link.active {
  color: var(--accent);
  background: var(--accent-dim);
  opacity: 1;
}
.proto-nav-link:first-child { border-left: 1px solid var(--border-subtle); }

.proto-nav-sep {
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--border-default);
  margin: 0 .5rem;
  flex-shrink: 0;
}

.proto-nav-right {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-left: auto;
  padding-left: 1rem;
  border-left: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.proto-mode-label {
  font-size: .625rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
}

.proto-mode-toggle {
  display: flex;
  align-items: center;
  background: var(--bg-raised);
  border: 1px solid var(--border-default);
  border-radius: 20px;
  padding: 2px;
  cursor: pointer;
  gap: 2px;
  transition: border-color .2s;
}
.proto-mode-toggle:hover { border-color: var(--accent); }

.proto-mode-btn {
  font-size: .625rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .25em .65em;
  border-radius: 16px;
  color: var(--text-muted);
  transition: background .15s, color .15s;
  white-space: nowrap;
  user-select: none;
}
.proto-mode-btn.on {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--accent);
}

body { padding-bottom: 44px; }

@media (max-width: 768px) {
  .proto-nav { display: none; }
  body { padding-bottom: 0; }
}


/* ══════════════════════════════════════════════════════════════
   LIGHT MODE COMPONENT OVERRIDES
   ══════════════════════════════════════════════════════════════
   Root cause: badge background/border values are hardcoded RGBA
   using dark-mode hue channels (e.g. rgba(76,155,201,0.12)).
   At 12% opacity on #F2EFE9 these become near-invisible.
   The --cat-* colour tokens ARE overridden in .light but the
   hardcoded RGBA backgrounds bypass the token system entirely.

   Fix: re-declare every affected component using the light-mode
   hue channels (matching the --cat-* overrides) at 0.13/0.30
   opacity — visible on greige without being heavy.

   Also: mobile sidebar shadow and backdrop scrim corrected.

   Nested selector syntax — supported in all modern browsers.
   For production WordPress theme, flatten if IE11 compat needed.
   ══════════════════════════════════════════════════════════════ */
.light,
[data-theme="light"] {

  /* Mobile sidebar — lighter shadow and scrim */
  .sidebar.open { box-shadow: 0 0 40px rgba(0,0,0,.14); }
  .sidebar-backdrop.visible { background: rgba(0,0,0,.22); }

  /* ── Category badges
     Light-mode channels match --cat-* token overrides:
     module #1A6E9A → 26,110,154
     skill  #1A6E32 → 26,110,50
     agent  #8B2252 → 139,34,82
     workflow #5C1EA0 → 92,30,160
     protocol #8B4A14 → 139,74,20
     changelog #4A7A14 → 74,122,20
  ── */
  .badge-module   { background: rgba(26,110,154,0.13); border-color: rgba(26,110,154,0.30); }
  .badge-skill    { background: rgba(26,110,50,0.13);  border-color: rgba(26,110,50,0.30);  }
  .badge-agent    { background: rgba(139,34,82,0.13);  border-color: rgba(139,34,82,0.30);  }
  .badge-workflow { background: rgba(92,30,160,0.13);  border-color: rgba(92,30,160,0.30);  }
  .badge-protocol { background: rgba(139,74,20,0.13);  border-color: rgba(139,74,20,0.30);  }
  .badge-changelog{ background: rgba(74,122,20,0.13);  border-color: rgba(74,122,20,0.30);  }

  /* Ability table type badges */
  .type-r { background: rgba(26,110,154,0.10); }   /* module blue */
  .type-w { background: rgba(139,105,20,0.12); }   /* accent amber — 139,105,20 */
  .type-d { background: rgba(139,34,82,0.10);  }   /* agent rose */

  /* Callout blocks */
  .callout      { background: rgba(139,105,20,0.08); border-left-color: var(--accent); }
  .callout strong { color: var(--accent); }
  .callout.warn { background: rgba(139,34,82,0.08); border-left-color: var(--cat-agent); }
  .callout.warn strong { color: var(--cat-agent); }

  /* Permission badges */
  .perm-read-only  { background: rgba(26,110,50,0.10);  border-color: rgba(26,110,50,0.28);  }
  .perm-read-write { background: rgba(139,105,20,0.10); border-color: rgba(139,105,20,0.28); }

  /* Lane chips */
  .lane-content   { background: rgba(26,110,154,0.08); border-color: rgba(26,110,154,0.25); }
  .lane-structure { background: rgba(92,30,160,0.08);  border-color: rgba(92,30,160,0.25);  }
  .lane-system    { background: rgba(74,122,20,0.08);  border-color: rgba(74,122,20,0.25);  }
}