:root {
  --bg: #0b0f19;
  --surface: #111827;
  --surface-2: #0e1524;
  --elevated: #161f32;
  --fg: #f9fafb;
  --muted: #9ca3af;
  --faint: #6b7280;
  --primary: #6366f1;
  --primary-fg: #f9fafb;
  --primary-hover: #818cf8;
  --accent: #22d3ee;
  --success: #10b981;
  --success-fg: #042f1e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --border: #1f2937;
  --border-strong: #334155;
  --shadow: 0 0 0 1px rgba(255, 255, 255, 0.06);
  --shadow-hover: 0 0 0 1px rgba(255, 255, 255, 0.12);
  --shadow-lift: 0 18px 40px -24px rgba(0, 0, 0, 0.7);
  --radius: 1.25rem;
  --font: Inter, ui-sans-serif, system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html:not(.dark) {
  --bg: #f5f6fb;
  --surface: #ffffff;
  --surface-2: #eef1f8;
  --elevated: #ffffff;
  --fg: #0b1220;
  --muted: #5b6478;
  --faint: #8b93a7;
  --primary: #4f46e5;
  --primary-fg: #ffffff;
  --primary-hover: #4338ca;
  --accent: #0e7490;
  --success: #059669;
  --success-fg: #ecfdf5;
  --warning: #d97706;
  --danger: #dc2626;
  --border: #e5e7eb;
  --border-strong: #cbd5e1;
  --shadow: 0 0 0 1px rgba(15, 23, 42, 0.06), 0 1px 2px -1px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 0 0 1px rgba(15, 23, 42, 0.1), 0 8px 24px -16px rgba(15, 23, 42, 0.2);
  --shadow-lift: 0 18px 40px -28px rgba(15, 23, 42, 0.28);
}

* { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  line-height: 1.55;
  min-height: 100vh;
}
h1, h2, h3, h4 { text-wrap: balance; letter-spacing: -0.03em; line-height: 1.12; margin: 0; }
p { text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button, [role="button"] { cursor: pointer; font-family: inherit; }
::selection { background: color-mix(in oklab, var(--primary) 35%, transparent); }

.skip {
  position: absolute; left: -999px; top: 0;
}
.skip:focus {
  left: 1rem; top: 0.75rem; z-index: 80;
  background: var(--primary); color: var(--primary-fg);
  padding: 0.5rem 0.75rem; border-radius: 0.5rem;
}

.wrap { width: min(1152px, calc(100% - 2rem)); margin-inline: auto; }
.page { padding: 2.5rem 0 4rem; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.kicker {
  font-size: 0.75rem; font-weight: 650; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--primary);
}

header.site {
  position: sticky; top: 0; z-index: 40;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 80%, transparent);
  background: color-mix(in oklab, var(--bg) 80%, transparent);
  backdrop-filter: blur(12px);
}
.nav {
  height: 64px; display: flex; align-items: center; gap: 0.75rem;
}
.logo { display: flex; align-items: center; gap: 0.65rem; font-weight: 650; font-size: 0.95rem; }
.logo-mark {
  width: 32px; height: 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 3px;
  padding: 7px; border-radius: 8px; background: var(--primary);
}
.logo-mark i { display: block; border-radius: 1.5px; background: var(--primary-fg); }
.logo-mark i:nth-child(2) { background: var(--accent); }
.logo-mark i:nth-child(3) { opacity: 0.55; }

.nav-links { display: none; align-items: center; gap: 0.15rem; margin-left: 1.25rem; }
.nav-links a, .nav-links button.drop-btn {
  background: none; border: 0; color: var(--muted); font-size: 0.875rem;
  padding: 0.5rem 0.75rem; border-radius: 0.5rem;
}
.nav-links a:hover, .nav-links button.drop-btn:hover { color: var(--fg); }
.nav-links a.is-active { color: var(--fg); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 0.25rem; }

.icon-btn {
  width: 44px; height: 44px; display: grid; place-items: center;
  border: 0; background: transparent; color: var(--muted); border-radius: 0.5rem;
}
.icon-btn:hover { color: var(--fg); background: var(--surface); }
.icon-btn svg { width: 18px; height: 18px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 44px; padding: 0 1rem; border-radius: 0.5rem; font-size: 0.875rem; font-weight: 550;
  border: 0; transition: background 150ms var(--ease), box-shadow 150ms var(--ease);
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-outline { background: transparent; color: var(--fg); box-shadow: var(--shadow); }
.btn-outline:hover { background: var(--surface); }
.btn-ghost { background: transparent; color: var(--muted); }
.btn-ghost:hover { color: var(--fg); background: var(--surface); }
.btn-aff { background: var(--success); color: var(--success-fg); }
.btn-aff:hover { opacity: 0.92; }
.btn-sm { min-height: 36px; padding: 0 0.75rem; font-size: 0.8rem; }
.btn-lg { min-height: 48px; padding: 0 1.2rem; font-size: 1rem; }
.cta-desktop { display: none; }

.drop { position: relative; }
.drop-menu {
  display: none; position: absolute; top: calc(100% + 8px); left: 0; width: 18rem;
  background: var(--surface); box-shadow: var(--shadow-lift); border-radius: 0.75rem;
  padding: 0.4rem; z-index: 50; border: 1px solid var(--border);
}
.drop:hover .drop-menu, .drop:focus-within .drop-menu { display: block; }
.drop-menu a { display: block; padding: 0.7rem 0.8rem; border-radius: 0.5rem; color: var(--fg) !important; }
.drop-menu a:hover { background: var(--elevated); }
.drop-menu small { display: block; color: var(--muted); font-size: 0.75rem; font-weight: 400; }

.mobile-panel {
  display: none; border-top: 1px solid var(--border); background: var(--bg); padding: 1rem;
}
.mobile-panel.open { display: block; }
.mobile-panel a { display: block; padding: 0.75rem 0.5rem; color: var(--fg); }
.mobile-panel .sub { color: var(--muted); font-size: 0.9rem; }

.hero {
  border-bottom: 1px solid var(--border);
  background-image:
    linear-gradient(to bottom, color-mix(in oklab, var(--bg) 20%, transparent), var(--bg)),
    linear-gradient(color-mix(in oklab, var(--fg) 5%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--fg) 5%, transparent) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
}
.hero-grid {
  display: grid; gap: 3rem; padding: 4rem 0 3.5rem;
}
@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; align-items: center; }
  .nav-links { display: flex; }
  .cta-desktop { display: inline-flex; }
  .burger { display: none; }
  .toc-col { display: block !important; }
}
h1.display { font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 650; max-width: 22ch; }
.lede { font-size: 1.05rem; color: var(--muted); max-width: 40rem; margin-top: 1.1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
  max-width: 32rem; margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border);
}
.stats dt { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--faint); }
.stats dd { margin: 0.25rem 0 0; font-size: 1.25rem; font-weight: 650; font-variant-numeric: tabular-nums; }

.card {
  background: var(--surface); box-shadow: var(--shadow); border-radius: var(--radius); padding: 1.25rem;
}
.card:hover { box-shadow: var(--shadow-hover); }
.grid-2 { display: grid; gap: 1rem; }
.grid-3 { display: grid; gap: 1rem; }
.grid-4 { display: grid; gap: 1rem; }
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .split { display: grid; grid-template-columns: 1fr 280px; gap: 2.5rem; }
}

.section { margin-top: 5rem; }
.section h2 { font-size: 1.85rem; font-weight: 650; }

.logo-sq {
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 650; letter-spacing: -0.02em; flex-shrink: 0;
}
.logo-sq.sm { width: 36px; height: 36px; border-radius: 8px; font-size: 11px; }
.logo-sq.md { width: 44px; height: 44px; border-radius: 12px; font-size: 12px; }
.logo-sq.lg { width: 64px; height: 64px; border-radius: 16px; font-size: 14px; }
.tone-indigo { background: var(--primary); color: var(--primary-fg); }
.tone-cyan, .tone-sky { background: var(--accent); color: var(--bg); }
.tone-emerald, .tone-teal { background: var(--success); color: var(--success-fg); }
.tone-amber, .tone-orange { background: var(--warning); color: var(--bg); }
.tone-rose { background: var(--danger); color: var(--primary-fg); }
.tone-slate, .tone-blue { background: var(--elevated); color: var(--fg); box-shadow: var(--shadow); }

.badge {
  display: inline-flex; align-items: center; border-radius: 999px;
  padding: 0.15rem 0.65rem; font-size: 11px; font-weight: 650;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.badge-ok { background: color-mix(in oklab, var(--success) 18%, transparent); color: var(--success); }
.badge-acc { background: color-mix(in oklab, var(--accent) 18%, transparent); color: var(--accent); }
.badge-pr { background: color-mix(in oklab, var(--primary) 18%, transparent); color: var(--primary); }
.badge-solid { background: var(--primary); color: var(--primary-fg); }
.badges { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.score-pill {
  background: var(--elevated); border-radius: 8px; padding: 0.25rem 0.5rem;
  font-weight: 650; font-variant-numeric: tabular-nums; font-size: 0.875rem;
}
.score-pill span { font-size: 11px; color: var(--faint); font-weight: 500; }

.tool-card { display: flex; flex-direction: column; height: 100%; }
.tool-card h3 { margin-top: 1rem; font-size: 1.1rem; }
.tool-card h3 a:hover { color: var(--primary-hover); }
.tool-card .tagline { margin: 0.4rem 0 0; color: var(--muted); font-size: 0.875rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.tool-card .foot { margin-top: auto; padding-top: 1.2rem; display: flex; justify-content: space-between; align-items: center; font-size: 0.75rem; color: var(--faint); }

.bar { height: 6px; background: var(--elevated); border-radius: 99px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--primary); border-radius: 99px; }
.bar-row { display: flex; justify-content: space-between; font-size: 0.875rem; margin-bottom: 0.4rem; }

table.cmp { width: 100%; border-collapse: collapse; font-size: 0.875rem; min-width: 640px; }
table.cmp th, table.cmp td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
table.cmp th { font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--faint); }
.table-scroll { overflow-x: auto; border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
table.cmp th:first-child, table.cmp td:first-child {
  position: sticky; left: 0; background: var(--surface); z-index: 1;
}

.faq details { border-bottom: 1px solid var(--border); padding: 0.25rem 0; }
.faq summary {
  list-style: none; cursor: pointer; padding: 1rem 0; font-weight: 550;
  display: flex; justify-content: space-between; gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq details p { margin: 0 0 1rem; color: var(--muted); font-size: 0.9rem; }

.toc { background: var(--surface); box-shadow: var(--shadow); border-radius: var(--radius); padding: 1.25rem; }
.toc p { margin: 0 0 0.75rem; font-size: 11px; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }
.toc ol { margin: 0; padding: 0; list-style: none; }
.toc a { display: block; padding: 0.3rem 0; font-size: 0.875rem; color: var(--muted); }
.toc a:hover { color: var(--fg); }
.toc-col { display: none; }
.sticky { position: sticky; top: 88px; }

.prose { max-width: 48rem; color: var(--muted); font-size: 1.05rem; line-height: 1.7; }
.prose h2 { color: var(--fg); font-size: 1.5rem; margin: 2.4rem 0 0.7rem; }
.prose h3 { color: var(--fg); font-size: 1.15rem; margin: 1.6rem 0 0.5rem; }
.prose p { margin: 0 0 1rem; }
.prose ul { margin: 0 0 1rem 1.2rem; }
.prose a { color: var(--primary-hover); text-decoration: underline; text-underline-offset: 3px; }
.prose strong { color: var(--fg); }

footer.site { margin-top: 5rem; border-top: 1px solid var(--border); background: var(--surface-2); }
.foot-grid { display: grid; gap: 2rem; padding: 3.5rem 0; }
@media (min-width: 800px) { .foot-grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; } }
footer .col h4 { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); margin-bottom: 0.8rem; }
footer .col a { display: block; color: var(--muted); font-size: 0.875rem; padding: 0.28rem 0; }
footer .col a:hover { color: var(--fg); }
.foot-bottom { border-top: 1px solid var(--border); padding: 2rem 0; display: flex; flex-direction: column; gap: 1.5rem; }
@media (min-width: 800px) { .foot-bottom { flex-direction: row; justify-content: space-between; align-items: center; } }

.form { display: flex; flex-direction: column; gap: 0.5rem; }
@media (min-width: 520px) { .form { flex-direction: row; } }
input[type="email"], input[type="search"], input[type="text"], select {
  height: 44px; border: 0; border-radius: 0.5rem; background: var(--surface);
  color: var(--fg); padding: 0 0.85rem; box-shadow: var(--shadow); font: inherit; min-width: 0; flex: 1;
}
input:focus, select:focus { outline: 2px solid color-mix(in oklab, var(--primary) 70%, transparent); }

.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1.5rem 0; }
.chip {
  height: 40px; padding: 0 1rem; border-radius: 999px; border: 0; font: inherit; font-size: 0.875rem;
  background: var(--surface); color: var(--muted); box-shadow: var(--shadow);
}
.chip.on { background: var(--primary); color: var(--primary-fg); box-shadow: none; }

.search-modal {
  display: none; position: fixed; inset: 0; z-index: 60;
}
.search-modal.open { display: block; }
.search-backdrop { position: absolute; inset: 0; background: color-mix(in oklab, var(--bg) 70%, transparent); }
.search-box {
  position: relative; width: min(560px, calc(100% - 1.5rem)); margin: 12vh auto 0;
  background: var(--surface); border-radius: 1rem; box-shadow: var(--shadow-lift);
  border: 1px solid var(--border-strong); overflow: hidden;
}
.search-box input {
  width: 100%; height: 52px; box-shadow: none; border-radius: 0; background: transparent;
  padding-left: 2.75rem;
}
.search-hits { max-height: 20rem; overflow: auto; padding: 0.5rem; }
.search-hits a { display: block; padding: 0.65rem 0.75rem; border-radius: 0.5rem; }
.search-hits a:hover { background: var(--elevated); }
.search-hits .kind { font-size: 10px; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }

.stack-logos { display: flex; }
.stack-logos span { margin-left: -8px; border-radius: 10px; box-shadow: 0 0 0 2px var(--surface); }
.stack-logos span:first-child { margin-left: 0; }

.ring { width: 72px; height: 72px; }
.updated { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.75rem; color: var(--muted); }
.row-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.25rem; }
.pick { padding: 1.5rem; }
.nl-box { padding: 2.2rem 1.5rem; background: var(--elevated); }
@media (min-width: 640px) { .nl-box { padding: 2.5rem 2.5rem; } }

.mock {
  overflow: hidden; border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow);
}
.mock-bar { display: flex; gap: 6px; padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--border); }
.mock-bar b { width: 8px; height: 8px; border-radius: 99px; background: var(--border-strong); }
.mock-body { padding: 1rem; display: grid; gap: 0.5rem; }
.mock-line { height: 10px; background: var(--elevated); border-radius: 6px; }
.mock cap, .mock figcaption { display: block; border-top: 1px solid var(--border); padding: 0.6rem 1rem; font-size: 0.75rem; color: var(--muted); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}