/* ============================================
   Credimi Design Tokens — EUDI Conformance Atlas
   Source: DESIGN.md
   ============================================ */

/* --- Fonts --- */
@font-face {
  font-family: 'Manrope';
  src: url('../fonts/Manrope-VariableFont_wght.ttf') format('truetype-variations');
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/JetBrainsMono-VariableFont_wght.ttf') format('truetype-variations');
  font-weight: 100 800;
  font-style: normal;
  font-display: swap;
}

/* --- Custom Properties --- */
:root {
  /* Primary — deep indigo */
  --brand-primary:       oklch(0.2955 0.1659 277.31);
  --brand-primary-700:   oklch(0.36 0.18 277.31);
  --brand-primary-600:   oklch(0.45 0.20 277.31);

  /* Secondary — lavender */
  --brand-secondary:         oklch(0.9464 0.0284 294.59);
  --brand-secondary-strong:  oklch(0.8794 0.0567 294.59);

  /* Neutrals */
  --bg:         oklch(1 0 0);
  --bg-muted:   oklch(0.9811 0.0064 308.39);
  --fg:         oklch(0.129 0.042 264.695);
  --fg-muted:   oklch(0.7248 0.0094 286.16);
  --border:     oklch(0.929 0.013 255.508);
  --border-strong: oklch(0.82 0.015 255.508);

  /* Semantic / status */
  --success:      oklch(0.55 0.18 150);
  --success-bg:   oklch(0.95 0.04 150);
  --warning:      oklch(0.65 0.18 85);
  --warning-bg:   oklch(0.96 0.06 85);
  --destructive:  oklch(0.50 0.22 25);
  --destructive-bg: oklch(0.96 0.03 25);
  --wallet:       oklch(0.45 0.18 300);
  --wallet-bg:    oklch(0.95 0.04 300);
  --credential:   #A04D0F;
  --credential-bg: #FFE9D6;
  --info:         oklch(0.40 0.15 260);
  --info-bg:      oklch(0.94 0.04 260);

  /* Score bands */
  --score-stable:    oklch(0.55 0.18 150);
  --score-flaky:     oklch(0.65 0.18 85);
  --score-failing:   #A04D0F;
  --score-broken:    oklch(0.50 0.22 25);

  /* Typography scale */
  --fs-4xl:  48px;
  --fs-3xl:  36px;
  --fs-2xl:  28px;
  --fs-xl:   22px;
  --fs-lg:   18px;
  --fs-md:   16px;
  --fs-base: 14px;
  --fs-sm:   13px;
  --fs-xs:   12px;

  /* Spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* Radii */
  --radius-sm:  2px;
  --radius-md:  6px;
  --radius-lg:  10px;
  --radius-xl:  14px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm:  0 1px 2px rgba(0,0,0,.04);
  --shadow:     0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 6px rgba(0,0,0,.08);
  --shadow-lg:  0 10px 15px rgba(0,0,0,.08);

  /* Layout */
  --max-width: 1280px;
  --topbar-height: 56px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/*
  Font fallback: when Manrope/JetBrains Mono font files are not yet available
  in src/fonts/, the browser falls back to system UI fonts.
  Download the fonts from:
  - Manrope: https://fonts.google.com/specimen/Manrope
  - JetBrains Mono: https://fonts.google.com/specimen/JetBrains+Mono
  Place .ttf files in src/fonts/ and rebuild.
*/
body {
  font-family: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: var(--fs-base);
  line-height: 1.571;
  color: var(--fg);
  background: var(--brand-secondary);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 { font-family: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif; color: var(--fg); }
h1 { font-size: var(--fs-4xl); line-height: 1.104; font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: var(--fs-3xl); line-height: 1.194; font-weight: 800; letter-spacing: -0.015em; }
h3 { font-size: var(--fs-2xl); line-height: 1.25; font-weight: 700; letter-spacing: -0.01em; }
h4 { font-size: var(--fs-xl); line-height: 1.364; font-weight: 700; }
h5 { font-size: var(--fs-lg); line-height: 1.5; font-weight: 600; }

a { color: var(--brand-primary); text-decoration: underline; }
a:hover { text-decoration: none; }

code, pre, .mono {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.875em;
}

pre {
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  overflow-x: auto;
  font-size: var(--fs-sm);
  line-height: 1.5;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.page-content {
  padding: var(--space-8) 0 var(--space-16);
}

/* --- Topbar --- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  height: var(--topbar-height);
}

.topbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.topbar-logo {
  height: 22px;
  flex-shrink: 0;
}

.topbar-logo img { height: 100%; width: auto; }

.topbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
}

.topbar-nav a {
  color: var(--fg);
  text-decoration: none;
  font-size: var(--fs-sm);
  font-weight: 500;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  transition: background 150ms ease-out, color 150ms ease-out;
}

.topbar-nav a:hover { color: var(--brand-primary); background: var(--brand-secondary); }

/* --- Footer --- */
.footer {
  background: var(--brand-primary);
  color: white;
  padding: var(--space-12) 0 0;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-12);
  padding-bottom: var(--space-8);
}

.footer-brand p {
  font-size: var(--fs-sm);
  opacity: 0.8;
  max-width: 360px;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: var(--space-12);
}

.footer-col h5 {
  color: white;
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: var(--fs-sm);
  line-height: 2;
  transition: color 150ms ease-out;
}

.footer-col a:hover { color: white; text-decoration: none; }

.footer-sub-bar {
  background: rgba(0,0,0,0.3);
  text-align: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-xs);
  font-weight: 500;
}

/* --- Hero --- */
.hero {
  background: var(--brand-secondary);
  padding: var(--space-16) 0;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background:
    linear-gradient(135deg, transparent 49.5%, rgba(0,0,0,0.04) 49.5%, rgba(0,0,0,0.04) 50.5%, transparent 50.5%),
    linear-gradient(45deg, transparent 49.5%, rgba(0,0,0,0.04) 49.5%, rgba(0,0,0,0.04) 50.5%, transparent 50.5%);
  pointer-events: none;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: var(--fs-4xl);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.hero p {
  font-size: var(--fs-md);
  color: var(--fg-muted);
  max-width: 640px;
  line-height: 1.6;
}

/* --- Cards --- */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: border-color 150ms ease-out;
}

.card:hover { border-color: var(--border-strong); }

.card-grid { display: grid; gap: var(--space-6); }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }

/* --- Section Headers --- */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-6);
}

.section-header h2 {
  font-size: var(--fs-2xl);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-header h2::after { content: ':'; }

.count-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-secondary-strong);
  color: var(--fg-muted);
  font-size: var(--fs-sm);
  font-weight: 600;
  min-width: 24px;
  height: 24px;
  padding: 0 6px;
  border-radius: var(--radius-pill);
  vertical-align: middle;
  margin-left: var(--space-2);
}

.see-all {
  color: var(--brand-primary);
  text-decoration: underline;
  font-size: var(--fs-sm);
  font-weight: 500;
  white-space: nowrap;
}

.see-all:hover { text-decoration: none; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: var(--fs-sm);
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-lg);
  transition: all 150ms ease-out;
  white-space: nowrap;
}

.btn-sm { height: 28px; padding: 0 var(--space-3); font-size: var(--fs-xs); }
.btn-md { height: 36px; padding: 0 var(--space-5); }
.btn-lg { height: 44px; padding: 0 var(--space-6); font-size: var(--fs-md); }

.btn-primary {
  background: var(--brand-primary);
  color: white;
}

.btn-primary:hover { background: var(--brand-primary-700); }

.btn-outline {
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
}

.btn-outline:hover { border-color: var(--border-strong); background: var(--bg-muted); }

.btn-ghost {
  background: transparent;
  color: var(--fg);
}

.btn-ghost:hover { background: var(--bg-muted); }

.btn-destructive {
  background: var(--destructive);
  color: white;
}

.btn-destructive:hover { background: oklch(0.42 0.20 25); }

/* --- Badges / Chips --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 500;
  height: 22px;
  padding: 0 var(--space-2);
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.badge-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge-legal       { background: oklch(0.94 0.04 260); color: oklch(0.40 0.15 260); }
.badge-technical   { background: oklch(0.95 0.06 60); color: oklch(0.50 0.18 60); }
.badge-assurance   { background: oklch(0.95 0.04 150); color: oklch(0.48 0.15 150); }
.badge-trust       { background: oklch(0.95 0.04 300); color: oklch(0.45 0.18 300); }
.badge-neutral     { background: var(--bg-muted); color: var(--fg-muted); }

.badge-verifier    { background: var(--success-bg); color: var(--success); }
.badge-issuer      { background: var(--warning-bg); color: var(--warning); }
.badge-wallet      { background: var(--wallet-bg); color: var(--wallet); }
.badge-credential  { background: var(--credential-bg); color: var(--credential); }

/* --- Status Chips (pill) --- */
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 500;
  height: 24px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-pill);
}

.status-chip::before {
  content: '';
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.status-verifier   { background: var(--success-bg); color: var(--success); }
.status-verifier::before { background: var(--success); }
.status-issuer     { background: var(--warning-bg); color: var(--warning); }
.status-issuer::before { background: var(--warning); }
.status-wallet     { background: var(--wallet-bg); color: var(--wallet); }
.status-wallet::before { background: var(--wallet); }
.status-credential { background: var(--credential-bg); color: var(--credential); }
.status-credential::before { background: var(--credential); }

/* --- Score band pills --- */
.score-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 700;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-family: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

.score-stable  { background: var(--success-bg); color: var(--score-stable); }
.score-flaky   { background: var(--warning-bg); color: var(--score-flaky); }
.score-failing { background: var(--credential-bg); color: var(--score-failing); }
.score-broken  { background: var(--destructive-bg); color: var(--score-broken); }

/* --- Eyebrow --- */
.eyebrow {
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-primary);
  margin-bottom: var(--space-2);
}

/* --- Inputs --- */
input[type="text"],
input[type="search"] {
  font-family: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: var(--fs-base);
  height: 36px;
  padding: 0 var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  color: var(--fg);
  width: 100%;
  transition: border-color 200ms ease-out, box-shadow 200ms ease-out;
}

input[type="text"]:focus,
input[type="search"]:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px oklch(0.2955 0.1659 277.31 / 0.18);
}

input::placeholder {
  color: var(--fg-muted);
}

/* --- Document card --- */
.doc-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.doc-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.doc-card h4 {
  font-size: var(--fs-md);
  font-weight: 700;
  line-height: 1.4;
}

.doc-card h4 a { color: var(--fg); text-decoration: none; }
.doc-card h4 a:hover { color: var(--brand-primary); }

.doc-card .doc-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--fg-muted);
}

.doc-card .doc-summary {
  font-size: var(--fs-sm);
  color: var(--fg-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.doc-card .doc-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-2);
  flex-wrap: wrap;
}

/* --- Evidence card --- */
.evidence-card h4 { margin-bottom: var(--space-1); }
.evidence-card .evidence-slug {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--fg-muted);
  margin-bottom: var(--space-2);
}
.evidence-card .evidence-desc {
  font-size: var(--fs-sm);
  color: var(--fg-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.evidence-card .evidence-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  flex-wrap: wrap;
}

/* --- Search --- */
.search-wrap {
  position: relative;
  max-width: 560px;
}

.search-wrap input {
  padding-left: 40px;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--fg-muted);
}

/* --- Filter bar --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--fs-xs);
  font-weight: 500;
  height: 28px;
  padding: 0 var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--bg);
  color: var(--fg-muted);
  cursor: pointer;
  transition: all 150ms ease-out;
}

.filter-chip:hover { border-color: var(--border-strong); color: var(--fg); }
.filter-chip.active {
  background: var(--brand-primary);
  border-color: var(--brand-primary);
  color: white;
}

/* --- Tree --- */
.tree-container {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  overflow-y: auto;
  max-height: 70vh;
}

.tree-node { user-select: none; }
.tree-node-toggle {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: background 150ms ease-out;
}
.tree-node-toggle:hover { background: var(--bg-muted); }
.tree-node-toggle .toggle-icon {
  width: 16px;
  height: 16px;
  transition: transform 150ms ease-out;
  color: var(--fg-muted);
  flex-shrink: 0;
}
.tree-node.expanded > .tree-node-toggle .toggle-icon { transform: rotate(90deg); }
.tree-children { padding-left: var(--space-5); display: none; }
.tree-node.expanded > .tree-children { display: block; }
.tree-leaf { padding: var(--space-1) var(--space-2) var(--space-1) var(--space-8); font-size: var(--fs-sm); }
.tree-leaf a { color: var(--fg); text-decoration: none; }
.tree-leaf a:hover { color: var(--brand-primary); text-decoration: underline; }
.tree-search-highlight { background: oklch(0.92 0.12 100); border-radius: 2px; }

/* --- Detail pages --- */
.detail-header {
  margin-bottom: var(--space-8);
}

.detail-header .doc-type {
  margin-bottom: var(--space-2);
}

.detail-header h1 {
  margin-bottom: var(--space-3);
}

.detail-header .doc-id-display {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-sm);
  color: var(--fg-muted);
  margin-bottom: var(--space-3);
}

.detail-section {
  margin-bottom: var(--space-8);
}

.detail-section h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.detail-section h3::after { content: ':'; }

.dl {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: var(--space-2) var(--space-4);
}

.dl dt {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--fg-muted);
}

.dl dd {
  font-size: var(--fs-base);
  line-height: 1.5;
}

/* --- Official refs --- */
.ref-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.ref-item {
  padding: var(--space-3);
  background: var(--bg-muted);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.ref-item .ref-source {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--fg-muted);
  margin-bottom: 2px;
}

.ref-item .ref-detail {
  font-size: var(--fs-sm);
}

/* --- Side Panel --- */
.side-panel {
  position: fixed;
  right: 0;
  top: var(--topbar-height);
  width: 400px;
  max-width: 90vw;
  height: calc(100vh - var(--topbar-height));
  background: var(--bg);
  border-left: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  z-index: 50;
  overflow-y: auto;
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform 200ms ease-out;
}

.side-panel.open { transform: translateX(0); }

.side-panel-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.2);
  z-index: 49;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease-out;
}

.side-panel-overlay.open { opacity: 1; pointer-events: auto; }

/* --- Disclaimer --- */
.disclaimer {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--warning);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: var(--fs-sm);
  color: var(--fg-muted);
  margin-bottom: var(--space-8);
}

/* --- Edit link --- */
.edit-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-xs);
  color: var(--fg-muted);
  text-decoration: none;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 150ms ease-out;
}

.edit-link:hover { color: var(--brand-primary); border-color: var(--border-strong); }

/* --- Tabs --- */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-4);
}

.tab-btn {
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--fg-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 150ms ease-out;
}

.tab-btn:hover { color: var(--fg); }
.tab-btn.active {
  color: var(--brand-primary);
  border-bottom-color: var(--brand-primary);
}

/* --- Utilities --- */
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mt-4 { margin-top: var(--space-4); }
.text-muted { color: var(--fg-muted); }
.text-sm { font-size: var(--fs-sm); }
.text-xs { font-size: var(--fs-xs); }
.font-mono { font-family: 'JetBrains Mono', monospace; }

/* --- Responsive --- */
@media (max-width: 768px) {
  :root {
    --fs-4xl: 32px;
    --fs-3xl: 26px;
    --fs-2xl: 22px;
  }
  .container { padding: 0 var(--space-4); }
  .card-grid-2, .card-grid-3 { grid-template-columns: 1fr; }
  .hero { padding: var(--space-10) 0; }
  .hero h1 { font-size: var(--fs-3xl); }
  .footer-content { flex-direction: column; gap: var(--space-8); }
  .footer-links { flex-direction: column; gap: var(--space-6); }
  .dl { grid-template-columns: 1fr; }
  .dl dt { margin-top: var(--space-2); }
  .section-header { flex-wrap: wrap; gap: var(--space-2); }
  .topbar-nav { gap: var(--space-2); }
  .topbar-nav a { font-size: var(--fs-xs); padding: var(--space-1); }
  .side-panel { width: 100vw; }
}

/* ============================================
   Role Sidebar — v2 redesign
   ============================================ */

:root {
  --role-sidebar-width: 200px;
  --badge-protocol-bg:  oklch(0.95 0.05 200);
  --badge-protocol:     oklch(0.38 0.16 200);
  --badge-etsi-bg:      oklch(0.95 0.04 300);
  --badge-etsi:         oklch(0.40 0.15 300);
  --badge-iso-bg:       oklch(0.95 0.06 60);
  --badge-iso:          oklch(0.48 0.18 60);
}

/* Body layout shifts when sidebar open */
body.role-sidebar-open .page-shell {
  padding-right: var(--role-sidebar-width);
}

/* Shell wrapping main content (below topbar) */
.page-shell {
  display: flex;
  min-height: calc(100vh - var(--topbar-height));
  transition: padding-right 200ms ease-out;
  position: relative;
}

.page-shell-main {
  flex: 1;
  min-width: 0;
}

/* Role sidebar */
.role-sidebar {
  position: fixed;
  right: 0;
  top: var(--topbar-height);
  width: var(--role-sidebar-width);
  height: calc(100vh - var(--topbar-height));
  background: var(--bg);
  border-left: 1px solid var(--border);
  z-index: 40;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateX(100%);
  transition: transform 200ms ease-out;
}

.role-sidebar.open {
  transform: translateX(0);
}

.role-sidebar-header {
  padding: var(--space-3) var(--space-3) var(--space-2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.role-sidebar-header h6 {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.role-sidebar-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--fg-muted);
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: color 150ms;
}
.role-sidebar-close:hover { color: var(--fg); }

.role-sidebar-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2) var(--space-2);
}

.role-btn {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-2);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: none;
  cursor: pointer;
  text-align: left;
  transition: all 150ms ease-out;
  margin-bottom: var(--space-1);
}

.role-btn:hover {
  background: var(--bg-muted);
  border-color: var(--border);
}

.role-btn.active {
  background: var(--brand-secondary);
  border-color: var(--brand-primary);
}

.role-btn-icon {
  font-size: 16px;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 1px;
}

.role-btn-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--fg);
  line-height: 1.3;
}

.role-btn-desc {
  font-size: 11px;
  color: var(--fg-muted);
  line-height: 1.3;
  margin-top: 2px;
}

.role-btn.active .role-btn-label {
  color: var(--brand-primary);
}

.role-sidebar-footer {
  padding: var(--space-2) var(--space-3);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.role-clear-btn {
  font-size: var(--fs-xs);
  color: var(--fg-muted);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
  transition: color 150ms;
}
.role-clear-btn:hover { color: var(--fg); }

/* Topbar role toggle button */
.role-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 4px var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--bg);
  color: var(--fg-muted);
  cursor: pointer;
  transition: all 150ms ease-out;
  white-space: nowrap;
}
.role-toggle-btn:hover { border-color: var(--border-strong); color: var(--fg); }
.role-toggle-btn.active {
  background: var(--brand-secondary);
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

/* Highlight system: when a role is active, dim non-highlighted items */
body.role-active .highlightable {
  opacity: 0.35;
  transition: opacity 200ms ease-out;
}
body.role-active .highlightable.role-highlight {
  opacity: 1;
}
body.role-active .highlightable.role-highlight .card {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 1px var(--brand-primary);
}
/* Tree highlight */
body.role-active .tree-leaf {
  opacity: 0.35;
  transition: opacity 200ms ease-out;
}
body.role-active .tree-leaf.role-highlight {
  opacity: 1;
}
body.role-active .tree-leaf.role-highlight a {
  color: var(--brand-primary);
  font-weight: 600;
}

/* Badge for new doc types */
.badge-protocol { background: var(--badge-protocol-bg); color: var(--badge-protocol); }
.badge-etsi     { background: var(--badge-etsi-bg); color: var(--badge-etsi); }
.badge-iso      { background: var(--badge-iso-bg); color: var(--badge-iso); }
.badge-architecture { background: oklch(0.95 0.04 140); color: oklch(0.40 0.15 140); }

/* Layered map */
.layer-stack {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: var(--space-8);
}

.layer-row {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 150ms;
}

.layer-row:hover { border-color: var(--border-strong); }

.layer-row-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg);
  cursor: pointer;
  user-select: none;
}

.layer-row-header:hover { background: var(--bg-muted); }

.layer-row-arrow {
  font-size: var(--fs-xs);
  color: var(--fg-muted);
  transition: transform 200ms;
  flex-shrink: 0;
}

.layer-row.expanded .layer-row-arrow {
  transform: rotate(90deg);
}

.layer-row-title {
  font-size: var(--fs-sm);
  font-weight: 700;
  flex: 1;
}

.layer-row-desc {
  font-size: var(--fs-xs);
  color: var(--fg-muted);
}

.layer-row-count {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--fg-muted);
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 0 8px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.layer-row-body {
  display: none;
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--border);
  background: var(--bg-muted);
}

.layer-row.expanded .layer-row-body {
  display: block;
}

.layer-doc-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.layer-doc-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-xs);
  font-weight: 500;
  padding: 4px var(--space-3);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--fg);
  text-decoration: none;
  transition: all 150ms ease-out;
}

.layer-doc-chip:hover {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
  text-decoration: none;
}

.layer-doc-chip.role-highlight {
  background: var(--brand-secondary);
  border-color: var(--brand-primary);
  color: var(--brand-primary);
  font-weight: 700;
}

/* Layer connector arrows */
.layer-connector {
  text-align: center;
  color: var(--fg-muted);
  font-size: var(--fs-lg);
  line-height: 1;
  padding: 2px 0;
  pointer-events: none;
}

/* Test coverage page */
.test-table-wrap {
  overflow-x: auto;
}

.test-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}

.test-table th {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 2px solid var(--border);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 1;
}

.test-table td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.test-table tr:hover td { background: var(--bg-muted); }

.test-table .test-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--fg-muted);
  white-space: nowrap;
}

.test-table .test-name {
  max-width: 420px;
  line-height: 1.4;
  font-weight: 500;
}

.strength-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 500;
  height: 22px;
  padding: 0 var(--space-2);
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.strength-definitive { background: var(--success-bg); color: var(--success); }
.strength-conditional { background: var(--warning-bg); color: var(--warning); }
.strength-external { background: var(--bg-muted); color: var(--fg-muted); border: 1px solid var(--border); }

/* Stats strip */
.stats-strip {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-value {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: var(--brand-primary);
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-label {
  font-size: var(--fs-xs);
  color: var(--fg-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Nav active state */
.topbar-nav a.nav-active {
  color: var(--brand-primary);
  background: var(--brand-secondary);
}

/* Reference page tabs */
.ref-source-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: var(--space-6);
  overflow-x: auto;
}

.ref-source-tab {
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--fg-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all 150ms ease-out;
  white-space: nowrap;
}

.ref-source-tab:hover { color: var(--fg); }
.ref-source-tab.active {
  color: var(--brand-primary);
  border-bottom-color: var(--brand-primary);
}

/* Responsive sidebar */
@media (max-width: 768px) {
  :root { --role-sidebar-width: 180px; }
  body.role-sidebar-open .page-shell { padding-right: 0; }
  .role-sidebar { width: 100vw; }
  .stats-strip { gap: var(--space-4); }
}

/* Hide role button on pages where it has no effect */
.role-toggle-hidden {
  opacity: 0;
  pointer-events: none;
  cursor: default;
}

/* ============================================
   Mobile responsive fixes — v4
   ============================================ */

/* Chart grid: side by side on desktop, stacked on mobile */
.chart-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

@media (max-width: 640px) {
  .chart-grid {
    grid-template-columns: 1fr;
  }
}

/* Role button inside nav list — reset pill styling to fit nav */
.topbar-nav .role-toggle-btn {
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  height: 32px;
  padding: 0 var(--space-3);
  vertical-align: middle;
}

/* Topbar nav: allow wrapping on very small screens */
@media (max-width: 480px) {
  .topbar-inner {
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
  }
  .topbar-nav {
    gap: var(--space-2);
  }
  .topbar-nav a {
    font-size: 13px;
  }
}

/* ============================================
   Map page — tree layout & mobile bottom sheet
   ============================================ */

.tree-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-6);
}

.tree-panel-close {
  display: none;
}

@media (max-width: 768px) {
  .tree-layout {
    grid-template-columns: 1fr;
  }

  /* Side panel becomes a bottom sheet on mobile */
  .tree-side-panel {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: var(--bg);
    border-top: 2px solid var(--border);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: var(--space-8) var(--space-4) var(--space-4);
    box-shadow: 0 -4px 24px rgba(0,0,0,0.12);
    max-height: 60vh;
    overflow-y: auto;
  }

  .tree-panel-close {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    width: 28px;
    height: 28px;
    background: var(--bg-muted);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    font-size: 14px;
    cursor: pointer;
    color: var(--fg-muted);
    line-height: 1;
  }
}

/* ============================================
   CSS donut charts — no canvas, fully responsive
   ============================================ */

.css-chart-card {
  padding: var(--space-6);
}

.css-chart-title {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.css-chart-sub {
  margin-bottom: var(--space-4);
}

.css-chart-body {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

/* The donut: a conic-gradient circle with a white hole punched in the middle */
.css-donut {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  /* gradient set by JS */
  background: #e5e7eb;
  position: relative;
}

/* White hole = donut effect */
.css-donut::after {
  content: '';
  position: absolute;
  inset: 28px;
  background: white;
  border-radius: 50%;
}

/* Legend */
.css-legend {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.css-legend-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  min-width: 0;
}

.css-swatch {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.css-legend-label {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: #111827;
}

.css-legend-val {
  flex-shrink: 0;
  font-weight: 700;
  font-size: 12px;
  color: #6b7280;
  min-width: 24px;
  text-align: right;
}