/* ============================================
   WTFpkg — What The F*** Is In Your Packages
   Utilitarian security reference aesthetic
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,400;0,500;0,600;0,700&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;0,700&display=swap');

/* --- Custom Properties --- */
:root {
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Menlo', 'Consolas', monospace;

  --bg-0: #08090d;
  --bg-1: #0e1018;
  --bg-2: #151822;
  --bg-3: #1c2030;
  --bg-surface: #12141e;
  --bg-hover: #1a1e2e;
  --bg-code: #0b0d14;

  --text-0: #e8eaf0;
  --text-1: #b0b6c4;
  --text-2: #6e7689;
  --text-link: #6eb1f0;
  --text-link-hover: #9dcbf7;

  --border-0: #1e2234;
  --border-1: #282d42;
  --border-focus: #4e7cbf;

  --pm-apt: #34d399;
  --pm-pip: #60a5fa;
  --pm-npm: #f87171;
  --pm-gem: #fb7185;
  --pm-cargo: #fb923c;

  --sev-critical: #ef4444;
  --sev-high: #f59e0b;
  --sev-medium: #a78bfa;
  --sev-low: #34d399;

  --accent: #6eb1f0;
  --radius: 6px;
}

[data-theme="light"] {
  --bg-0: #f4f5f7;
  --bg-1: #ffffff;
  --bg-2: #ebedf2;
  --bg-3: #dfe1e8;
  --bg-surface: #ffffff;
  --bg-hover: #eef0f5;
  --bg-code: #f0f1f5;

  --text-0: #1a1d27;
  --text-1: #4a5068;
  --text-2: #8690a5;
  --text-link: #2a6abf;
  --text-link-hover: #1a4f96;

  --border-0: #dfe1e8;
  --border-1: #cfd2dc;
  --border-focus: #2a6abf;

  --accent: #2a6abf;
}

/* --- Animations --- */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-0);
  color: var(--text-0);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* Background dot-grid atmosphere */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(circle, var(--text-2) 0.5px, transparent 0.5px);
  background-size: 24px 24px;
  opacity: 0.07;
  pointer-events: none;
}
[data-theme="light"] body::before,
body[data-theme="light"]::before {
  opacity: 0.04;
}
a { color: var(--text-link); text-decoration: none; transition: color 0.12s; }
a:hover { color: var(--text-link-hover); }

/* Focus styles for accessibility */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--accent);
  color: var(--bg-0);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  z-index: 9999;
  font-size: 0.875rem;
}
.skip-link:focus { top: 0.5rem; }

/* --- Layout --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; width: 100%; }
main { flex: 1; }

/* --- Header --- */
.site-header {
  background: rgba(14, 16, 24, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-0);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
[data-theme="light"] .site-header {
  background: rgba(255, 255, 255, 0.85);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--text-0);
  letter-spacing: -0.01em;
}
.site-logo:hover { color: var(--text-0); }
.logo-prompt { color: var(--text-2); font-weight: 400; }
.logo-accent { color: var(--accent); }

.header-right {
  display: flex;
  align-items: center;
  gap: 0.125rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.header-nav a, .theme-toggle {
  color: var(--text-2);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius);
  transition: all 0.12s;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
}
.header-nav a:hover, .theme-toggle:hover {
  color: var(--text-0);
  background: var(--bg-hover);
}

.theme-toggle {
  font-size: 0.875rem;
  padding: 0.375rem 0.5rem;
  line-height: 1;
  display: flex;
  align-items: center;
}

/* --- Home: Header strip --- */
.home-strip {
  padding: 1.75rem 0 1rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.home-strip-left {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.home-strip h1 {
  font-family: var(--font-mono);
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.home-strip h1 .accent { color: var(--accent); }
.home-strip .subtitle {
  color: var(--text-2);
  font-size: 0.8125rem;
}

.home-stats {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-2);
}
.home-stats strong {
  color: var(--text-1);
}
.home-stat-sep {
  opacity: 0.3;
}

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  padding: 0.75rem 0;
  margin-bottom: 0.25rem;
  border-bottom: 1px solid var(--border-0);
}

.search-wrapper {
  position: relative;
  flex: 1;
  min-width: 200px;
}

.search-wrapper svg {
  position: absolute;
  left: 0.625rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-2);
  width: 14px;
  height: 14px;
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 0.4375rem 0.625rem 0.4375rem 2rem;
  background: var(--bg-2);
  border: 1px solid var(--border-0);
  border-radius: var(--radius);
  color: var(--text-0);
  font-size: 0.8125rem;
  font-family: var(--font-body);
  transition: border-color 0.12s;
}
.search-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(110, 177, 240, 0.15);
}
.search-input::placeholder { color: var(--text-2); }

.filter-select {
  padding: 0.4375rem 1.75rem 0.4375rem 0.625rem;
  background: var(--bg-2);
  border: 1px solid var(--border-0);
  border-radius: var(--radius);
  color: var(--text-0);
  font-size: 0.8125rem;
  font-family: var(--font-body);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%236e7689' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  transition: border-color 0.12s;
}
.filter-select:focus {
  outline: none;
  border-color: var(--border-focus);
}

.results-count {
  font-size: 0.75rem;
  color: var(--text-2);
  font-family: var(--font-mono);
  white-space: nowrap;
  margin-left: auto;
}

.kbd-hint {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.6875rem;
  color: var(--text-2);
  margin-left: 0.5rem;
}
.kbd {
  background: var(--bg-3);
  border: 1px solid var(--border-0);
  border-radius: 3px;
  padding: 0.0625rem 0.3125rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  line-height: 1.4;
}

/* --- Homepage PM Cards --- */
.pm-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 0.75rem;
  padding: 2rem 0 2.5rem;
}

.pm-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-0);
  border-radius: var(--radius);
  overflow: hidden;
  color: var(--text-0);
  text-decoration: none;
  transition: border-color 0.18s, transform 0.15s, box-shadow 0.18s;
  position: relative;
  animation: fadeSlideUp 0.4s ease-out both;
}
.pm-card:nth-child(1) { animation-delay: 0ms; }
.pm-card:nth-child(2) { animation-delay: 60ms; }
.pm-card:nth-child(3) { animation-delay: 120ms; }
.pm-card:nth-child(4) { animation-delay: 180ms; }
.pm-card:nth-child(5) { animation-delay: 240ms; }

.pm-card:hover {
  transform: translateY(-2px);
  color: var(--text-0);
}
.pm-card-apt:hover { border-color: rgba(52, 211, 153, 0.45); box-shadow: 0 6px 24px rgba(52, 211, 153, 0.10), inset 0 1px 0 rgba(52, 211, 153, 0.08); }
.pm-card-pip:hover { border-color: rgba(96, 165, 250, 0.45); box-shadow: 0 6px 24px rgba(96, 165, 250, 0.10), inset 0 1px 0 rgba(96, 165, 250, 0.08); }
.pm-card-npm:hover { border-color: rgba(248, 113, 113, 0.45); box-shadow: 0 6px 24px rgba(248, 113, 113, 0.10), inset 0 1px 0 rgba(248, 113, 113, 0.08); }
.pm-card-gem:hover { border-color: rgba(251, 113, 133, 0.45); box-shadow: 0 6px 24px rgba(251, 113, 133, 0.10), inset 0 1px 0 rgba(251, 113, 133, 0.08); }
.pm-card-cargo:hover { border-color: rgba(251, 146, 60, 0.45); box-shadow: 0 6px 24px rgba(251, 146, 60, 0.10), inset 0 1px 0 rgba(251, 146, 60, 0.08); }

.pm-card-accent {
  height: 4px;
  width: 100%;
  transition: height 0.15s ease;
}
.pm-card:hover .pm-card-accent {
  height: 5px;
}
.pm-card-apt .pm-card-accent { background: linear-gradient(90deg, var(--pm-apt), #6ee7b7); }
.pm-card-pip .pm-card-accent { background: linear-gradient(90deg, var(--pm-pip), #93c5fd); }
.pm-card-npm .pm-card-accent { background: linear-gradient(90deg, var(--pm-npm), #fca5a5); }
.pm-card-gem .pm-card-accent { background: linear-gradient(90deg, var(--pm-gem), #fda4af); }
.pm-card-cargo .pm-card-accent { background: linear-gradient(90deg, var(--pm-cargo), #fdba74); }

.pm-card-body {
  flex: 1;
  padding: 0.875rem 1rem;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.pm-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.375rem;
}

.pm-card-eco {
  font-size: 0.6875rem;
  color: var(--text-2);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pm-card-count {
  font-size: 0.6875rem;
  color: var(--text-2);
  font-family: var(--font-mono);
}

.pm-card-name {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.375rem;
  letter-spacing: -0.01em;
}
.pm-card-apt .pm-card-name { color: var(--pm-apt); }
.pm-card-pip .pm-card-name { color: var(--pm-pip); }
.pm-card-npm .pm-card-name { color: var(--pm-npm); }
.pm-card-gem .pm-card-name { color: var(--pm-gem); }
.pm-card-cargo .pm-card-name { color: var(--pm-cargo); }

.pm-card-desc {
  font-size: 0.75rem;
  color: var(--text-2);
  line-height: 1.5;
  margin: 0 0 0.75rem;
  flex: 1;
}

.pm-card-bottom {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
}

.pm-card-arrow {
  position: absolute;
  bottom: 0.875rem;
  right: 1rem;
  font-size: 1rem;
  color: var(--text-2);
  transition: color 0.12s, transform 0.12s;
  opacity: 0;
}
.pm-card:hover .pm-card-arrow {
  opacity: 1;
  transform: translateX(3px);
}
.pm-card-apt:hover .pm-card-arrow { color: var(--pm-apt); }
.pm-card-pip:hover .pm-card-arrow { color: var(--pm-pip); }
.pm-card-npm:hover .pm-card-arrow { color: var(--pm-npm); }
.pm-card-gem:hover .pm-card-arrow { color: var(--pm-gem); }
.pm-card-cargo:hover .pm-card-arrow { color: var(--pm-cargo); }

/* --- PM Drill-down Listing --- */
.pm-listing-header {
  padding: 1.5rem 0 0.75rem;
}

.pm-listing-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.pm-listing-title {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.pm-color-apt { color: var(--pm-apt); }
.pm-color-pip { color: var(--pm-pip); }
.pm-color-npm { color: var(--pm-npm); }
.pm-color-gem { color: var(--pm-gem); }
.pm-color-cargo { color: var(--pm-cargo); }

.pm-listing-desc {
  font-size: 0.875rem;
  color: var(--text-2);
}

.pm-listing-count {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-2);
  white-space: nowrap;
}

/* --- Technique Card Grid (drill-down) --- */
.technique-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.625rem;
  padding: 0.75rem 0 2rem;
}

.technique-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-0);
  border-radius: var(--radius);
  padding: 0.875rem 1rem;
  color: var(--text-0);
  transition: border-color 0.18s, background 0.15s, transform 0.15s, box-shadow 0.18s;
  text-decoration: none;
  min-height: 150px;
  animation: fadeSlideUp 0.35s ease-out both;
}
.technique-card:nth-child(1) { animation-delay: 0ms; }
.technique-card:nth-child(2) { animation-delay: 50ms; }
.technique-card:nth-child(3) { animation-delay: 100ms; }
.technique-card:nth-child(4) { animation-delay: 150ms; }
.technique-card:nth-child(5) { animation-delay: 200ms; }
.technique-card:nth-child(6) { animation-delay: 250ms; }
.technique-card:nth-child(n+7) { animation-delay: 300ms; }

.technique-card:hover {
  border-color: var(--border-1);
  background: var(--bg-hover);
  color: var(--text-0);
  transform: translateY(-1px);
}

.technique-card-apt:hover { border-color: rgba(52, 211, 153, 0.3); }
.technique-card-pip:hover { border-color: rgba(96, 165, 250, 0.3); }
.technique-card-npm:hover { border-color: rgba(248, 113, 113, 0.3); }
.technique-card-gem:hover { border-color: rgba(251, 113, 133, 0.3); }
.technique-card-cargo:hover { border-color: rgba(251, 146, 60, 0.3); }

.technique-card.hidden {
  display: none;
}

.card-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.card-category {
  font-size: 0.6875rem;
  color: var(--text-2);
  font-family: var(--font-mono);
}

.card-title {
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 0.375rem;
  color: var(--text-0);
}

.technique-card:hover .card-title {
  color: var(--text-link);
}

.card-desc {
  font-size: 0.75rem;
  color: var(--text-2);
  line-height: 1.45;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}

.card-bottom {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
  margin-top: 0.625rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-0);
}

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.4375rem;
  border-radius: 3px;
  font-size: 0.6875rem;
  font-weight: 600;
  font-family: var(--font-mono);
  white-space: nowrap;
  line-height: 1.5;
}
.badge-apt { background: rgba(52, 211, 153, 0.12); color: var(--pm-apt); border: 1px solid rgba(52, 211, 153, 0.2); }
.badge-pip { background: rgba(96, 165, 250, 0.12); color: var(--pm-pip); border: 1px solid rgba(96, 165, 250, 0.2); }
.badge-npm { background: rgba(248, 113, 113, 0.12); color: var(--pm-npm); border: 1px solid rgba(248, 113, 113, 0.2); }
.badge-gem { background: rgba(251, 113, 133, 0.12); color: var(--pm-gem); border: 1px solid rgba(251, 113, 133, 0.2); }
.badge-cargo { background: rgba(251, 146, 60, 0.12); color: var(--pm-cargo); border: 1px solid rgba(251, 146, 60, 0.2); }

.severity-pill {
  display: inline-block;
  padding: 0.0625rem 0.375rem;
  border-radius: 3px;
  font-size: 0.625rem;
  font-weight: 700;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.6;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.severity-pill:hover {
  transform: scale(1.06);
}
.severity-critical { background: rgba(239, 68, 68, 0.12); color: var(--sev-critical); border: 1px solid rgba(239, 68, 68, 0.25); }
.severity-high { background: rgba(245, 158, 11, 0.12); color: var(--sev-high); border: 1px solid rgba(245, 158, 11, 0.25); }
.severity-medium { background: rgba(167, 139, 250, 0.12); color: var(--sev-medium); border: 1px solid rgba(167, 139, 250, 0.25); }
.severity-low { background: rgba(52, 211, 153, 0.12); color: var(--sev-low); border: 1px solid rgba(52, 211, 153, 0.25); }

.category-tag {
  font-size: 0.75rem;
  color: var(--text-1);
  white-space: nowrap;
}

.platform-tags { display: flex; gap: 0.25rem; flex-wrap: wrap; }
.platform-tag {
  font-size: 0.625rem;
  padding: 0.0625rem 0.3125rem;
  background: var(--bg-2);
  border-radius: 3px;
  color: var(--text-2);
  font-family: var(--font-mono);
  border: 1px solid var(--border-0);
}

/* --- No Results --- */
.no-results {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-2);
}
.no-results p { font-size: 0.875rem; }

/* --- Technique Detail Page --- */
.technique-detail {
  max-width: 820px;
  margin: 0 auto;
  padding: 1.5rem 0 3rem;
}

.breadcrumb {
  font-size: 0.75rem;
  color: var(--text-2);
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
}
.breadcrumb a { color: var(--text-2); }
.breadcrumb a:hover { color: var(--text-link); }
.breadcrumb .sep { margin: 0 0.25rem; opacity: 0.4; }

.technique-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-0);
}

.technique-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.625rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.technique-meta {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.technique-description {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-1);
  margin-bottom: 2rem;
}

/* Sticky section nav for detail pages */
.section-nav {
  position: sticky;
  top: 56px;
  background: var(--bg-1);
  border-bottom: 1px solid var(--border-0);
  padding: 0.5rem 0;
  margin: 0 -1.25rem 1.5rem;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  z-index: 50;
  display: flex;
  gap: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.section-nav a {
  color: var(--text-2);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.3125rem 0.625rem;
  border-radius: var(--radius);
  white-space: nowrap;
  transition: all 0.12s;
}
.section-nav a:hover {
  color: var(--text-0);
  background: var(--bg-hover);
}

/* Detail sections */
.detail-section {
  margin-bottom: 2.25rem;
}

.detail-section h2 {
  font-size: 0.8125rem;
  font-weight: 700;
  margin-bottom: 0.875rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-0);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 0.4375rem;
}

.section-icon {
  font-size: 0.8125rem;
  font-style: normal;
}

.detail-section h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--text-0);
}

.prereq-list, .mitigation-list {
  list-style: none;
  padding: 0;
}

.prereq-list li, .mitigation-list li {
  padding: 0.375rem 0 0.375rem 1.25rem;
  position: relative;
  color: var(--text-1);
  font-size: 0.875rem;
  line-height: 1.5;
}

.prereq-list li::before {
  content: "\203A";
  position: absolute;
  left: 0.25rem;
  color: var(--text-2);
  font-weight: bold;
}

.mitigation-list li::before {
  content: "";
  position: absolute;
  left: 0.25rem;
  top: 0.625rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pm-apt);
}

/* Scenario & Detection cards */
.scenario-card {
  background: var(--bg-1);
  border: 1px solid var(--border-0);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.75rem;
}

.scenario-card p, .detection-card p {
  color: var(--text-1);
  font-size: 0.8125rem;
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.detection-card {
  background: var(--bg-1);
  border: 1px solid var(--border-0);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.75rem;
}

/* Code blocks */
.code-block-wrapper {
  position: relative;
  margin: 0.625rem 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-0);
}

.code-label {
  background: var(--bg-3);
  padding: 0.3125rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-2);
  border-bottom: 1px solid var(--border-0);
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.code-block-wrapper pre {
  margin: 0;
  padding: 0.75rem;
  background: var(--bg-code) !important;
  overflow-x: auto;
  font-size: 0.75rem;
  line-height: 1.6;
}

.code-block-wrapper code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* Prism.js overrides — integrate with site theme */
.code-block-wrapper pre[class*="language-"],
.code-block-wrapper code[class*="language-"] {
  background: none;
  text-shadow: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* Light theme: swap to a lighter Prism palette */
[data-theme="light"] .code-block-wrapper .token.comment,
[data-theme="light"] .code-block-wrapper .token.prolog,
[data-theme="light"] .code-block-wrapper .token.doctype,
[data-theme="light"] .code-block-wrapper .token.cdata { color: #6a737d; }
[data-theme="light"] .code-block-wrapper .token.punctuation { color: #24292e; }
[data-theme="light"] .code-block-wrapper .token.property,
[data-theme="light"] .code-block-wrapper .token.tag,
[data-theme="light"] .code-block-wrapper .token.boolean,
[data-theme="light"] .code-block-wrapper .token.number,
[data-theme="light"] .code-block-wrapper .token.constant,
[data-theme="light"] .code-block-wrapper .token.symbol { color: #005cc5; }
[data-theme="light"] .code-block-wrapper .token.selector,
[data-theme="light"] .code-block-wrapper .token.attr-name,
[data-theme="light"] .code-block-wrapper .token.string,
[data-theme="light"] .code-block-wrapper .token.char,
[data-theme="light"] .code-block-wrapper .token.builtin { color: #032f62; }
[data-theme="light"] .code-block-wrapper .token.operator,
[data-theme="light"] .code-block-wrapper .token.entity,
[data-theme="light"] .code-block-wrapper .token.url,
[data-theme="light"] .code-block-wrapper .token.variable { color: #d73a49; }
[data-theme="light"] .code-block-wrapper .token.atrule,
[data-theme="light"] .code-block-wrapper .token.attr-value,
[data-theme="light"] .code-block-wrapper .token.keyword { color: #d73a49; }
[data-theme="light"] .code-block-wrapper .token.function,
[data-theme="light"] .code-block-wrapper .token.class-name { color: #6f42c1; }
[data-theme="light"] .code-block-wrapper .token.important,
[data-theme="light"] .code-block-wrapper .token.regex { color: #e36209; }

.copy-btn {
  position: absolute;
  top: 0.3125rem;
  right: 0.3125rem;
  background: var(--bg-3);
  border: 1px solid var(--border-0);
  border-radius: 3px;
  padding: 0.1875rem 0.4375rem;
  cursor: pointer;
  color: var(--text-2);
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  transition: all 0.12s;
  z-index: 5;
  opacity: 0;
}
.code-block-wrapper:hover .copy-btn {
  opacity: 1;
}
.copy-btn:hover {
  color: var(--text-0);
  border-color: var(--border-1);
  background: var(--bg-hover);
}
.copy-btn.copied {
  color: var(--pm-apt);
  border-color: var(--pm-apt);
  opacity: 1;
}

/* When code-label is present, shift copy button position */
.code-label + .copy-btn,
.code-label ~ .copy-btn {
  top: 0.3125rem;
}

/* References */
.reference-list {
  list-style: none;
  padding: 0;
}
.reference-list li {
  padding: 0.4375rem 0;
  border-bottom: 1px solid var(--border-0);
}
.reference-list li:last-child { border-bottom: none; }
.reference-list a {
  font-size: 0.8125rem;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}
.ref-icon {
  font-size: 0.6875rem;
  color: var(--text-2);
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--border-0);
  padding: 1.25rem 0;
  margin-top: 2rem;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.3;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-2);
}

.footer-content p { margin: 0; }
.footer-content strong { color: var(--text-1); font-weight: 600; font-family: var(--font-mono); }

.footer-links {
  display: flex;
  gap: 1rem;
}
.footer-links a {
  color: var(--text-2);
  font-size: 0.75rem;
}
.footer-links a:hover { color: var(--text-link); }

/* --- Back to top --- */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--bg-2);
  border: 1px solid var(--border-0);
  border-radius: var(--radius);
  padding: 0.5rem;
  cursor: pointer;
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, background 0.12s;
  z-index: 90;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.back-to-top:hover {
  background: var(--bg-3);
  color: var(--text-0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  body { font-size: 13px; }

  .home-strip { flex-direction: column; gap: 0.5rem; padding: 1.25rem 0 0.75rem; }
  .home-strip-left { flex-direction: column; gap: 0.25rem; }
  .home-strip h1 { font-size: 1.125rem; }

  .filter-bar { flex-direction: column; align-items: stretch; }
  .filter-bar .filter-select { width: 100%; }
  .results-count { margin-left: 0; }

  .technique-grid {
    grid-template-columns: 1fr;
  }

  .pm-cards { grid-template-columns: 1fr; }

  .pm-listing-top { flex-direction: column; gap: 0.25rem; }

  .technique-header h1 { font-size: 1.25rem; }

  .footer-content { flex-direction: column; gap: 0.5rem; text-align: center; }

  .section-nav { margin-left: -1.25rem; margin-right: -1.25rem; }
}

@media (max-width: 480px) {
  .header-nav a:not(:last-child) { display: none; }
  .home-stats { display: none; }
}