:root {
  --bg: #0f1218;
  --panel: #161b24;
  --panel-2: #1d2330;
  --border: #2a3142;
  --text: #e6e9ef;
  --muted: #97a0b3;
  --accent: #7aa2ff;
  --accent-2: #ffb86b;
  --good: #6ee7b7;
  --bad: #ff8aa7;
  --easy: #4ade80;
  --medium: #fbbf24;
  --hard: #f87171;
  --code-bg: #0c1018;
  --shadow: 0 6px 18px rgba(0,0,0,0.35);
  --radius: 10px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.55;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

body > main {
  flex: 1 0 auto;
  width: 100%;
}

body > .site-footer {
  flex-shrink: 0;
  width: 100%;
}

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

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.site-title {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.2px;
}

.site-tagline {
  color: var(--muted);
  margin: 0 0 28px;
  font-size: 14px;
}

.breadcrumb {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 14px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }

h2.section-title {
  font-size: 18px;
  margin: 28px 0 12px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

.topic-title {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin: 22px 0 10px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  color: var(--text);
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.card:hover {
  text-decoration: none;
  transform: translateY(-2px);
  border-color: var(--accent);
}
.card h3 {
  margin: 0 0 6px;
  font-size: 16px;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}
.card .meta {
  margin-top: 10px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pill {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.pill.easy   { color: var(--easy);   border-color: var(--easy); }
.pill.medium { color: var(--medium); border-color: var(--medium); }
.pill.hard   { color: var(--hard);   border-color: var(--hard); }

.problem-header h1 {
  margin: 8px 0 6px;
  font-size: 26px;
}
.problem-header .meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.statement {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 22px;
}
.statement h3 { margin: 0 0 6px; font-size: 14px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; }
.statement p  { margin: 4px 0; }
.example {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 13px;
  display: grid;
  gap: 6px;
}
.example + .example { margin-top: 8px; }
.example-title {
  font-family: var(--sans);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.io-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  align-items: baseline;
  gap: 10px;
}
.io-tag {
  font-family: var(--sans);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.io-row code {
  background: transparent;
  padding: 0;
  color: var(--text);
  word-break: break-word;
}
.io-note {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--muted);
  border-top: 1px dashed var(--border);
  padding-top: 6px;
}

.inputs {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: flex-end;
}
.inputs .field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1 1 180px;
}
.inputs label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.inputs input[type="text"],
.inputs input[type="number"] {
  background: var(--code-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
  font: 13px var(--mono);
  min-width: 0;
}
.inputs input:focus {
  outline: none;
  border-color: var(--accent);
}
.inputs button {
  background: var(--accent);
  color: #0c1018;
  border: 0;
  border-radius: 6px;
  padding: 8px 16px;
  font: 600 13px var(--sans);
  cursor: pointer;
  height: 34px;
  align-self: flex-end;
}
.inputs button:hover { filter: brightness(1.1); }
.inputs .error {
  flex-basis: 100%;
  color: var(--bad);
  font-size: 12px;
  font-family: var(--mono);
  min-height: 1em;
}

.viz {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 22px;
}
.viz svg {
  width: 100%;
  height: auto;
  display: block;
  background: var(--panel-2);
  border-radius: 6px;
  border: 1px solid var(--border);
}
.viz .desc {
  margin: 12px 0 4px;
  min-height: 1.6em;
  font-size: 14px;
  color: var(--text);
}
.viz .controls {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.viz button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  font: inherit;
  cursor: pointer;
}
.viz button:hover { border-color: var(--accent); }
.viz button:disabled { opacity: 0.4; cursor: not-allowed; }
.viz .counter {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
}

.code-block {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 22px;
  overflow: hidden;
}
.code-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}
.code-tabs button {
  background: transparent;
  color: var(--muted);
  border: 0;
  padding: 10px 16px;
  font: inherit;
  cursor: pointer;
  border-right: 1px solid var(--border);
}
.code-tabs button.active {
  color: var(--text);
  background: var(--panel);
  box-shadow: inset 0 -2px 0 var(--accent);
}
.code-pane { display: none; }
.code-pane.active { display: block; }
.code-pane pre { margin: 0; }
.code-pane pre[class*="language-"] {
  background: var(--code-bg);
  font-size: 13px;
  padding: 14px 16px;
  position: relative;
}
.code-pane pre[class*="language-"] > code {
  position: relative;
  z-index: 1;
}
.code-pane .line-highlight {
  position: absolute;
  left: 0;
  right: 0;
  background: rgba(122, 162, 255, 0.16);
  border-left: 3px solid var(--accent);
  pointer-events: none;
  z-index: 0;
}

.complexity {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 14px;
}
.complexity span strong { color: var(--accent); font-family: var(--mono); }

.coming-soon {
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 600px) {
  .container { padding: 20px 14px 60px; }
  .problem-header h1 { font-size: 22px; }
  .viz .counter { margin-left: 0; width: 100%; text-align: right; }
}

/* ── Site chrome (header / footer / search) ───────────────────────── */

.site-nav-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 18, 24, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-nav-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.site-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.2px;
}
.site-brand:hover { text-decoration: none; color: var(--accent); }
.site-brand .brand-icon {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  display: block;
}

.site-primary-nav {
  display: flex;
  gap: 14px;
  font-size: 13px;
}
.site-primary-nav a {
  color: var(--muted);
  padding: 4px 2px;
}
.site-primary-nav a:hover,
.site-primary-nav a.active {
  color: var(--text);
  text-decoration: none;
}
.site-primary-nav a.active {
  box-shadow: inset 0 -2px 0 var(--accent);
}

.site-search-wrap {
  margin-left: auto;
  position: relative;
  flex: 1 1 240px;
  max-width: 360px;
}
.site-search-input {
  width: 100%;
  background: var(--code-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 36px 7px 32px;
  font: 13px var(--sans);
}
.site-search-input::placeholder { color: var(--muted); }
.site-search-input:focus {
  outline: none;
  border-color: var(--accent);
}
.site-search-wrap .search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 13px;
  pointer-events: none;
}
.site-search-wrap .search-kbd {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font: 11px var(--mono);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  pointer-events: none;
}

.site-breadcrumb {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px 10px;
  font-size: 12px;
  color: var(--muted);
}
.site-breadcrumb a { color: var(--muted); }
.site-breadcrumb a:hover { color: var(--accent); }
.site-breadcrumb .sep { margin: 0 6px; opacity: 0.6; }

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 60px;
  background: var(--panel);
  width: 100%;
}
.site-footer-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 18px 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 12px;
  color: var(--muted);
  align-items: center;
  justify-content: space-between;
}
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }
.site-footer .footer-links { display: flex; gap: 18px; align-items: center; }

body.has-site-chrome .container { padding-top: 18px; }
body.has-site-chrome .breadcrumb { display: none; } /* legacy hand-coded breadcrumbs */

/* ── Search overlay ────────────────────────────────────────────────── */

.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 9, 13, 0.55);
  z-index: 100;
  display: none;
  padding: 80px 20px 40px;
  overflow-y: auto;
}
.search-overlay.open { display: block; }
.search-panel {
  max-width: 720px;
  margin: 0 auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.search-panel-input-wrap {
  position: relative;
  border-bottom: 1px solid var(--border);
}
.search-panel-input {
  width: 100%;
  background: transparent;
  color: var(--text);
  border: 0;
  padding: 16px 48px 16px 44px;
  font: 15px var(--sans);
}
.search-panel-input:focus { outline: none; }
.search-panel-input-wrap .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
}
.search-panel-input-wrap .esc-kbd {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font: 11px var(--mono);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
}

.search-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}
.filter-group-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-right: 4px;
  align-self: center;
}
.filter-chip {
  display: inline-block;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-family: var(--sans);
}
.filter-chip:hover { color: var(--text); border-color: var(--accent); }
.filter-chip.active {
  color: #0c1018;
  background: var(--accent);
  border-color: var(--accent);
}
.filter-chip.active.easy   { background: var(--easy);   border-color: var(--easy); }
.filter-chip.active.medium { background: var(--medium); border-color: var(--medium); }
.filter-chip.active.hard   { background: var(--hard);   border-color: var(--hard); }

.search-results {
  max-height: 60vh;
  overflow-y: auto;
}
.search-result {
  display: block;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.search-result:last-child { border-bottom: 0; }
.search-result:hover {
  background: var(--panel-2);
  text-decoration: none;
}
.search-result.cursor {
  background: var(--panel-2);
  box-shadow: inset 3px 0 0 var(--accent);
}
.search-result .title { font-weight: 600; font-size: 14px; }
.search-result .crumbs {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
}
.search-result .meta {
  margin-top: 6px;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.search-empty {
  padding: 24px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.search-empty .hints {
  margin-top: 6px;
  font-size: 12px;
}
.search-empty .hint {
  display: inline-block;
  margin: 2px 4px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  cursor: pointer;
}
.search-empty .hint:hover { color: var(--text); border-color: var(--accent); }

/* ── Home & section page additions ─────────────────────────────────── */

.hero {
  margin: 14px 0 28px;
}
.hero h1 {
  font-size: 28px;
  margin: 0 0 8px;
}
.hero p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
}
.hero .hero-search {
  position: relative;
  max-width: 560px;
}
.hero .hero-search input {
  width: 100%;
  background: var(--code-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px 12px 40px;
  font: 14px var(--sans);
}
.hero .hero-search input:focus { outline: none; border-color: var(--accent); }
.hero .hero-search .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  margin-bottom: 32px;
}
.section-card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  color: var(--text);
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.section-card:hover {
  text-decoration: none;
  transform: translateY(-2px);
  border-color: var(--accent);
}
.section-card h3 {
  margin: 0 0 6px;
  font-size: 18px;
}
.section-card p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
}
.section-card .stats {
  display: flex;
  gap: 14px;
  font-size: 12px;
  color: var(--muted);
}
.section-card .stats strong {
  color: var(--accent);
  font-family: var(--mono);
}

.difficulty-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 32px;
}
.difficulty-row a {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--text);
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.difficulty-row a:hover { text-decoration: none; border-color: var(--accent); }
.difficulty-row .count { color: var(--muted); font: 12px var(--mono); }

/* ── Section page filter bar + collapsible topics ─────────────────── */

.section-filter-bar {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.section-filter-bar .filter-search {
  position: relative;
}
.section-filter-bar .filter-search input {
  width: 100%;
  background: var(--code-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px 8px 32px;
  font: 13px var(--sans);
}
.section-filter-bar .filter-search input:focus { outline: none; border-color: var(--accent); }
.section-filter-bar .filter-search .search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 13px;
}
.section-filter-bar .filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

details.topic-section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
details.topic-section[open] { border-color: var(--accent); }
details.topic-section > summary {
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  user-select: none;
}
details.topic-section > summary::-webkit-details-marker { display: none; }
details.topic-section > summary::before {
  content: "›";
  display: inline-block;
  color: var(--muted);
  font-family: var(--mono);
  transition: transform 0.15s ease;
  width: 12px;
}
details.topic-section[open] > summary::before { transform: rotate(90deg); }
details.topic-section .topic-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}
details.topic-section .topic-count {
  font: 11px var(--mono);
  color: var(--muted);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 8px;
}
details.topic-section .topic-preview {
  margin-left: auto;
  font-size: 12px;
  color: var(--muted);
  text-align: right;
  max-width: 50%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@media (max-width: 600px) {
  details.topic-section .topic-preview { display: none; }
}
details.topic-section .topic-body {
  padding: 4px 16px 16px;
  border-top: 1px solid var(--border);
}

.flat-results-list .search-result {
  background: var(--panel);
  border: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
}

.results-summary {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
}

.no-results {
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 600px) {
  .site-nav-inner { gap: 8px; }
  .site-search-wrap { flex: 1 1 100%; max-width: none; margin-left: 0; order: 3; }
  .site-primary-nav { font-size: 12px; }
  .site-search-wrap .search-kbd { display: none; }
  .hero h1 { font-size: 22px; }
}

/* ── Topic-page (AI/ML) visual building blocks ─────────────────── */
.statement.topic { padding: 18px 20px; margin-bottom: 18px; }
.statement.topic h3 {
  font-size: 18px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text);
  margin: 0 0 12px;
  font-weight: 600;
}
.statement.topic p { margin: 8px 0; font-size: 14.5px; line-height: 1.65; color: var(--text); }
.statement.topic p.lead {
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  margin: 4px 0 14px;
}
.statement.topic p.lead strong { color: var(--accent); font-weight: 600; }
.statement.topic ul { margin: 8px 0; padding-left: 20px; }
.statement.topic ul li { margin: 6px 0; font-size: 14px; line-height: 1.55; color: var(--text); }
.statement.topic code {
  background: var(--code-bg);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--text);
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin: 14px 0 4px;
}
.concept-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
}
.concept-card .label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.concept-card .value {
  display: block;
  font-family: var(--mono);
  font-size: 17px;
  color: var(--accent);
  margin-bottom: 6px;
}
.concept-card p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.55;
}

.callout {
  background: var(--panel-2);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 10px 14px;
  margin: 14px 0 4px;
  font-size: 14px;
  line-height: 1.55;
}
.callout.good { border-left-color: var(--good); }
.callout.warn { border-left-color: var(--accent-2); }
.callout .label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
}
.callout.good .label { color: var(--good); }
.callout.warn .label { color: var(--accent-2); }
.callout p { margin: 2px 0; color: var(--text); }
.callout code {
  background: var(--code-bg);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--good);
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 14px 0 4px;
}
.compare-col {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
}
.compare-col.good { border-top: 3px solid var(--good); }
.compare-col.bad { border-top: 3px solid var(--bad); }
.compare-col .label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 8px;
}
.compare-col.good .label { color: var(--good); }
.compare-col.bad .label { color: var(--bad); }
.compare-col ul {
  margin: 0;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text);
}
.compare-col ul li { margin: 4px 0; }
.compare-col ul li strong { color: var(--text); }
@media (max-width: 600px) {
  .compare-grid { grid-template-columns: 1fr; }
}