:root {
  --primary: #2b579a;
  --primary-light: #e8eef6;
  --text: #1a1a1a;
  --text-muted: #555;
  --border: #d0d7de;
  --bg: #fff;
  --bg-alt: #f6f8fa;
  --code-bg: #1e1e2e;
  --code-fg: #cdd6f4;
  --green: #2b7a3e;
  --red: #a02020;
  --blue: #2b579a;
  --gold: #b8860b;
  --purple: #5b2b7a;

  --tactic-harden: #2b7a3e;
  --tactic-isolate: #2b579a;
  --tactic-detect: #b8860b;
  --tactic-evict: #a02020;
  --tactic-restore: #5b2b7a;

  --layer-network: #0969da;
  --layer-os: #6e40c9;
  --layer-app: #cf222e;
  --layer-data: #0a7b6c;
  --layer-identity: #953800;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 15px;
}

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

/* --- Header & Nav --- */

.site-header {
  background: var(--primary);
  color: #fff;
  padding: 0;
  border-bottom: 3px solid #1e3f6f;
}

.site-header .header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header .logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 14px 0;
  color: #fff;
}
.site-header .logo:hover { text-decoration: none; }

.site-header .logo span {
  font-weight: 400;
  opacity: 0.8;
  font-size: 14px;
  margin-left: 8px;
}

nav { display: flex; gap: 0; }

nav a {
  color: rgba(255,255,255,0.85);
  padding: 14px 16px;
  font-size: 14px;
  font-weight: 500;
  border-bottom: 3px solid transparent;
  margin-bottom: -3px;
  transition: border-color 0.15s, color 0.15s;
}
nav a:hover { color: #fff; text-decoration: none; border-bottom-color: rgba(255,255,255,0.5); }
nav a.active { color: #fff; border-bottom-color: #fff; }

/* --- Layout --- */

.container { max-width: 1200px; margin: 0 auto; padding: 24px; }

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 24px;
}

/* --- Stats Bar --- */

.stats-bar {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  flex: 1;
  min-width: 140px;
}

.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
}

.stat-card .stat-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* --- Badges --- */

.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  vertical-align: middle;
}

.badge-tactic-harden   { background: #e6f4ea; color: var(--tactic-harden); }
.badge-tactic-isolate   { background: var(--primary-light); color: var(--tactic-isolate); }
.badge-tactic-detect    { background: #fef3e0; color: var(--tactic-detect); }
.badge-tactic-evict     { background: #fde8e8; color: var(--tactic-evict); }
.badge-tactic-restore   { background: #f3e8fd; color: var(--tactic-restore); }

.badge-layer-network    { background: #ddf4ff; color: var(--layer-network); }
.badge-layer-os         { background: #ede4fa; color: var(--layer-os); }
.badge-layer-app        { background: #ffebe9; color: var(--layer-app); }
.badge-layer-data       { background: #dafbe1; color: var(--layer-data); }
.badge-layer-identity   { background: #fff1e5; color: var(--layer-identity); }

.badge-confidence-high   { background: #e6f4ea; color: var(--green); }
.badge-confidence-medium { background: #fef3e0; color: var(--gold); }
.badge-confidence-low    { background: #fde8e8; color: var(--red); }

/* --- Taxonomy Tree (Index) --- */

.taxonomy-group { margin-bottom: 32px; }

.taxonomy-group .tactic-header {
  font-size: 20px;
  font-weight: 700;
  padding: 12px 16px;
  border-radius: 8px 8px 0 0;
  border: 1px solid var(--border);
  border-bottom: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.taxonomy-group .category-section {
  border: 1px solid var(--border);
  border-top: none;
}

.taxonomy-group .category-section:last-child {
  border-radius: 0 0 8px 8px;
}

.category-header {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 10px 16px 6px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

.entry-list { list-style: none; }

.entry-list li {
  padding: 8px 16px 8px 24px;
  border-top: 1px solid #eee;
  display: flex;
  align-items: center;
  gap: 10px;
}
.entry-list li:hover { background: var(--bg-alt); }

.entry-list .cme-id {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  min-width: 72px;
}

.entry-list .entry-name { flex: 1; }

/* --- Entry Detail Page --- */

.entry-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.entry-header .entry-id {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.entry-header h1 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 10px;
}

.entry-header .entry-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.entry-body { display: grid; grid-template-columns: 1fr 300px; gap: 32px; }

.entry-main section { margin-bottom: 28px; }

.entry-main section h2 {
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
  padding-bottom: 6px;
  margin-bottom: 12px;
}

.entry-description { font-size: 15px; line-height: 1.7; }

/* --- CVSS Table --- */

.cvss-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.cvss-table th {
  text-align: left;
  background: var(--bg-alt);
  padding: 8px 12px;
  border: 1px solid var(--border);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.cvss-table td {
  padding: 10px 12px;
  border: 1px solid var(--border);
  vertical-align: top;
}

.cvss-from {
  font-weight: 700;
  color: var(--red);
  font-family: "SF Mono", "Fira Code", monospace;
}

.cvss-to {
  font-weight: 700;
  color: var(--green);
  font-family: "SF Mono", "Fira Code", monospace;
}

.cvss-arrow { color: var(--text-muted); margin: 0 4px; }

.cvss-rationale { color: var(--text-muted); font-size: 13px; }

/* --- CWE Links --- */

.cwe-list { display: flex; flex-wrap: wrap; gap: 6px; }

.cwe-link {
  display: inline-block;
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 13px;
  padding: 3px 10px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--primary);
}
.cwe-link:hover { background: var(--primary-light); text-decoration: none; }

/* --- Verification --- */

.verification-method {
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.verification-cmd {
  background: var(--code-bg);
  color: var(--code-fg);
  border-radius: 6px;
  padding: 14px 16px;
  margin-bottom: 8px;
  overflow-x: auto;
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 13px;
  line-height: 1.5;
}

.verification-cmd .cmd-prompt { color: #a6e3a1; }
.verification-cmd .cmd-expected { color: #89b4fa; }

.cmd-platform {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* --- Sidebar --- */

.entry-sidebar section {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}

.entry-sidebar section h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.sidebar-list { list-style: none; }
.sidebar-list li { padding: 3px 0; font-size: 14px; }

.d3fend-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
}

.entry-nav {
  display: flex;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  margin-top: 32px;
  font-size: 14px;
}

.entry-nav a { display: flex; align-items: center; gap: 4px; }

/* --- Tables (by-tactic, by-cwe) --- */

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th {
  text-align: left;
  background: var(--bg-alt);
  padding: 10px 12px;
  border: 1px solid var(--border);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  position: sticky;
  top: 0;
  z-index: 1;
}

.data-table td {
  padding: 8px 12px;
  border: 1px solid var(--border);
  vertical-align: top;
}

.data-table tr:hover { background: var(--bg-alt); }

.data-table .cme-id-cell {
  font-family: "SF Mono", "Fira Code", monospace;
  font-weight: 600;
  white-space: nowrap;
}

.tactic-section { margin-bottom: 32px; }

.tactic-section h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* --- CWE Reverse Lookup --- */

.cwe-group { margin-bottom: 20px; }

.cwe-group-header {
  font-size: 16px;
  font-weight: 700;
  font-family: "SF Mono", "Fira Code", monospace;
  padding: 8px 12px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px 6px 0 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cwe-group-header a { font-size: 12px; font-weight: 400; }

.cwe-group-entries {
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 6px 6px;
  list-style: none;
}

.cwe-group-entries li {
  padding: 6px 12px 6px 20px;
  border-top: 1px solid #eee;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

/* --- Search --- */

.search-box {
  margin-bottom: 24px;
}

.search-box input {
  width: 100%;
  max-width: 500px;
  padding: 10px 16px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
}
.search-box input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(43,87,154,0.15); }

.search-results { list-style: none; }

.search-results li {
  padding: 10px 0;
  border-bottom: 1px solid #eee;
}

.search-results .sr-id {
  font-family: "SF Mono", "Fira Code", monospace;
  font-weight: 600;
  color: var(--primary);
  margin-right: 8px;
}

.search-results .sr-desc {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 2px;
}

.hidden { display: none; }

/* --- Footer --- */

.site-footer {
  margin-top: 48px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}

/* --- Responsive --- */

@media (max-width: 768px) {
  .entry-body { grid-template-columns: 1fr; }
  .site-header .header-inner { flex-direction: column; gap: 0; }
  nav { width: 100%; justify-content: center; }
  .stats-bar { flex-direction: column; }
  .entry-list li { flex-wrap: wrap; }
}