:root {
  --bg: #fbfbfd;
  --fg: #16161a;
  --muted: #63636b;
  --line: #e3e3e9;
  --card: #ffffff;
  --accent: #0a5cff;
  --accent-soft: #eef3ff;
  --ok: #0a7f4f;
  --warn: #9a5b00;
  --code-bg: #16161a;
  --code-fg: #e9e9ef;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 16, 24, .05), 0 8px 24px -12px rgba(16, 16, 24, .18);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e11;
    --fg: #f2f2f5;
    --muted: #9c9ca6;
    --line: #26262c;
    --card: #16161a;
    --accent: #7aa2ff;
    --accent-soft: #1a2033;
    --ok: #4ec98b;
    --warn: #e0a94a;
    --code-bg: #000000;
    --code-fg: #e9e9ef;
    --shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 8px 30px -16px rgba(0, 0, 0, .8);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; gap: 18px; height: 58px; }
.brand { font-weight: 700; font-size: 17px; letter-spacing: -.02em; color: var(--fg); }
.brand span { color: var(--accent); }
.topnav { display: flex; gap: 16px; font-size: 14px; margin-left: 6px; }
.topnav a { color: var(--muted); }
.topnav a:hover { color: var(--fg); text-decoration: none; }
.searchbox { position: relative; margin-left: auto; width: min(340px, 42vw); }
.searchbox input {
  width: 100%;
  padding: 8px 12px 8px 32px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--fg);
  font-size: 14px;
  outline: none;
}
.searchbox input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.searchbox::before {
  content: "⌕";
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 16px;
  pointer-events: none;
}
.search-results {
  position: absolute;
  top: 44px;
  left: 0;
  right: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
  overflow: hidden;
  display: none;
}
.search-results.open { display: block; }
.search-results a { display: block; padding: 9px 12px; border-bottom: 1px solid var(--line); color: var(--fg); font-size: 14px; }
.search-results a:last-child { border-bottom: 0; }
.search-results a:hover { background: var(--accent-soft); text-decoration: none; }
.search-results small { color: var(--muted); display: block; font-size: 12px; }

/* ---------- hero ---------- */
.hero { padding: 52px 0 34px; }
.hero h1 { font-size: clamp(30px, 4.4vw, 46px); line-height: 1.12; letter-spacing: -.03em; margin: 0 0 14px; }
.hero p { font-size: 18px; color: var(--muted); max-width: 660px; margin: 0; }
.hero .cmd { margin-top: 22px; }

/* ---------- sections ---------- */
section { padding: 30px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.section-head h2 { font-size: 21px; letter-spacing: -.02em; margin: 0; }
.section-head a { font-size: 14px; }
.lede { color: var(--muted); margin: 0 0 22px; max-width: 720px; }

/* ---------- cards ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(248px, 1fr));
  gap: 12px;
}
.card {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 15px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--fg);
  transition: border-color .12s ease, transform .12s ease;
}
.card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.card .name { font-weight: 620; font-size: 15px; letter-spacing: -.01em; }
.card .desc {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card .meta { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; padding-top: 4px; }

.badge {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .02em;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  white-space: nowrap;
}
.badge.accent { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); background: var(--accent-soft); }
.badge.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 35%, var(--line)); }
.badge.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 35%, var(--line)); }

/* ---------- breadcrumbs ---------- */
.crumbs { font-size: 13px; color: var(--muted); padding: 22px 0 0; }
.crumbs a { color: var(--muted); }
.crumbs span { margin: 0 6px; opacity: .55; }

/* ---------- app page ---------- */
.app-head { padding: 14px 0 26px; }
.app-head h1 { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -.03em; margin: 6px 0 10px; line-height: 1.15; }
.app-head .sub { color: var(--muted); font-size: 17px; margin: 0; max-width: 700px; }

.cmd {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--code-bg);
  color: var(--code-fg);
  font: 13.5px/1.4 ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, monospace;
  padding: 11px 14px;
  border-radius: 9px;
  border: 0;
  cursor: pointer;
}
.cmd .dollar { color: #6f6f7a; }
.cmd .copy { color: #9a9aa6; font-size: 11.5px; letter-spacing: .04em; text-transform: uppercase; }
.cmd:hover .copy { color: #fff; }
.cmd.copied .copy { color: #4ec98b; }

.cols { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); gap: 34px; align-items: start; }
@media (max-width: 820px) { .cols { grid-template-columns: 1fr; } }

table.facts { width: 100%; border-collapse: collapse; font-size: 14.5px; }
table.facts th, table.facts td { text-align: left; padding: 10px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
table.facts th { color: var(--muted); font-weight: 500; width: 42%; }
table.facts td { font-weight: 500; }
table.facts tr:last-child th, table.facts tr:last-child td { border-bottom: 0; }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.panel h2 { font-size: 15px; margin: 0 0 12px; letter-spacing: -.01em; }
.panel + .panel { margin-top: 14px; }

.prose h2 { font-size: 19px; letter-spacing: -.02em; margin: 34px 0 10px; }
.prose h3 { font-size: 16px; margin: 24px 0 8px; }
.prose p { margin: 0 0 14px; }
.prose ul { padding-left: 20px; margin: 0 0 14px; }
.prose li { margin-bottom: 6px; }

.callout {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  font-size: 14.5px;
  margin: 18px 0;
}

.rank-list { list-style: none; padding: 0; margin: 0; }
.rank-list li { display: flex; align-items: center; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 14.5px; }
.rank-list li:last-child { border-bottom: 0; }
.rank-list .num { color: var(--muted); font-variant-numeric: tabular-nums; width: 26px; flex: none; font-size: 13px; }
.rank-list .count { margin-left: auto; color: var(--muted); font-variant-numeric: tabular-nums; font-size: 13px; }

/* ---------- filter chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 22px; }
.chip {
  font-size: 13px;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  background: var(--card);
}
.chip:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.chip.active { background: var(--fg); color: var(--bg); border-color: var(--fg); }

/* ---------- comparison ---------- */
.vs-head { display: grid; grid-template-columns: 1fr auto 1fr; gap: 18px; align-items: center; padding: 18px 0 8px; }
.vs-head .side { text-align: center; }
.vs-head .side .name { font-size: 20px; font-weight: 650; letter-spacing: -.02em; }
.vs-head .side .desc { color: var(--muted); font-size: 13.5px; margin-top: 4px; }
.vs-head .vs { font-size: 13px; color: var(--muted); font-weight: 700; letter-spacing: .08em; }

table.compare { width: 100%; border-collapse: collapse; font-size: 14.5px; }
table.compare th, table.compare td { padding: 11px 12px; border-bottom: 1px solid var(--line); text-align: left; }
table.compare thead th { font-size: 13px; color: var(--muted); font-weight: 600; }
table.compare tbody th { color: var(--muted); font-weight: 500; width: 30%; }
table.compare tr:last-child th, table.compare tr:last-child td { border-bottom: 0; }
table.compare td.win { color: var(--ok); font-weight: 600; }

/* ---------- footer ---------- */
footer {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding: 28px 0 44px;
  color: var(--muted);
  font-size: 13.5px;
}
footer .cols2 { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 28px; }
@media (max-width: 700px) { footer .cols2 { grid-template-columns: 1fr; } }
footer h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--fg); margin: 0 0 10px; }
footer ul { list-style: none; padding: 0; margin: 0; }
footer li { margin-bottom: 6px; }
footer a { color: var(--muted); }

.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 28px; font-size: 14px; }
.pagination a, .pagination span {
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
}
.pagination a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.pagination .current { background: var(--fg); color: var(--bg); border-color: var(--fg); }

@media (max-width: 720px) {
  .topnav { display: none; }
  .searchbox { width: auto; flex: 1; }
  .hero { padding: 34px 0 22px; }
  .grid { grid-template-columns: 1fr; }
}


/* ---------- SEO/GEO additions ---------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 10px 14px;
  background: var(--fg);
  color: var(--bg);
  border-radius: 0 0 8px 0;
}
.skip:focus { left: 0; }

.hero-lede { margin-top: 16px; font-size: 15px; }

.quick-answer {
  margin: 18px 0 0;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 0 10px 10px 0;
  background: var(--accent-soft);
  font-size: 15.5px;
  line-height: 1.55;
}
.quick-answer code { white-space: nowrap; }

.updated {
  color: var(--muted);
  font-size: 12.5px;
  margin: 12px 0 0;
}

.mobile-menu { display: none; position: relative; }
.mobile-menu summary {
  cursor: pointer;
  list-style: none;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  font-size: 13.5px;
  white-space: nowrap;
}
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu nav {
  position: absolute;
  right: 0;
  top: 42px;
  min-width: 190px;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 6px;
  z-index: 50;
}
.mobile-menu nav a {
  padding: 9px 10px;
  border-radius: 7px;
  color: var(--fg);
  font-size: 14px;
}
.mobile-menu nav a:hover { background: var(--accent-soft); text-decoration: none; }

a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 860px) {
  .topnav { display: none; }
  .mobile-menu { display: block; }
  .searchbox { width: min(300px, 46vw); }
}

@media (max-width: 720px) {
  .topbar-inner { gap: 10px; }
  .brand { font-size: 16px; }
  .searchbox { width: auto; flex: 1; margin-left: 0; }
  .hero-lede { font-size: 14.5px; }
  .quick-answer { font-size: 14.5px; padding: 12px 14px; }
  table.compare { font-size: 13px; }
  table.compare th, table.compare td { padding: 9px 8px; }
}