:root {
  --bg: #000000;
  --bg-2: #0b0b0d;
  --panel: #161618;
  --panel-2: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.12);
  --line-2: rgba(255, 255, 255, 0.08);
  --fg: #f5f5f7;
  --muted: #a1a1a6;
  --dim: #6e6e73;
  --accent: #2997ff;
  --accent-soft: rgba(41, 151, 255, 0.14);
  --good: #30d158;
  --gold: #ffd60a;
  --silver: #d4d4d8;
  --bronze: #c47b3a;
  --shadow: 0 0 0 0.5px var(--line-2), 0 18px 40px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --nav: 52px;
  --max: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, monospace;
}
:root[data-theme="light"] {
  --bg: #f5f5f7;
  --bg-2: #ffffff;
  --panel: #ffffff;
  --panel-2: rgba(255, 255, 255, 0.72);
  --line: rgba(0, 0, 0, 0.1);
  --line-2: rgba(0, 0, 0, 0.06);
  --fg: #1d1d1f;
  --muted: #6e6e73;
  --dim: #86868b;
  --accent: #0066cc;
  --accent-soft: rgba(0, 102, 204, 0.1);
  --shadow: 0 0 0 0.5px var(--line-2), 0 12px 32px rgba(0, 0, 0, 0.06);
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f5f5f7;
    --bg-2: #ffffff;
    --panel: #ffffff;
    --panel-2: rgba(255, 255, 255, 0.72);
    --line: rgba(0, 0, 0, 0.1);
    --line-2: rgba(0, 0, 0, 0.06);
    --fg: #1d1d1f;
    --muted: #6e6e73;
    --dim: #86868b;
    --accent: #0066cc;
    --accent-soft: rgba(0, 102, 204, 0.1);
    --shadow: 0 0 0 0.5px var(--line-2), 0 12px 32px rgba(0, 0, 0, 0.06);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.47 var(--font);
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 70%);
  opacity: 0.35;
  z-index: 0;
}
:root[data-theme="light"] body::before {
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.035) 1px, transparent 1px);
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) body::before {
    background-image:
      linear-gradient(rgba(0, 0, 0, 0.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0, 0, 0, 0.035) 1px, transparent 1px);
  }
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: none; opacity: 0.88; }
.skip { position: absolute; left: -999px; top: 8px; }
.skip:focus { left: 8px; background: var(--panel); padding: 8px 12px; z-index: 9; }

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--nav);
  border-bottom: 0.5px solid var(--line);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}
.top-inner {
  max-width: var(--max);
  margin: 0 auto;
  height: 100%;
  padding: 0 22px;
  display: flex;
  align-items: center;
  gap: 22px;
}
.brand {
  color: inherit;
  font-weight: 650;
  font-size: 15px;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 1;
}
.logo {
  width: 16px;
  height: 16px;
  background:
    linear-gradient(var(--fg), var(--fg)) 0 100% / 4px 8px no-repeat,
    linear-gradient(var(--fg), var(--fg)) 6px 100% / 4px 12px no-repeat,
    linear-gradient(var(--fg), var(--fg)) 12px 100% / 4px 16px no-repeat;
}
.nav { display: flex; gap: 18px; flex: 1; }
.nav a {
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 500;
  opacity: 1;
}
.nav a:hover { color: var(--fg); }
.top-right { display: flex; gap: 10px; align-items: center; }
.lang-link { color: var(--muted); font-size: 12.5px; font-weight: 600; }
.icon-btn {
  border: 0.5px solid var(--line);
  background: var(--panel-2);
  color: var(--fg);
  border-radius: 999px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.theme-icon {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  box-shadow: inset 6px -2px 0 0 var(--fg);
  background: transparent;
}
:root[data-theme="light"] .theme-icon {
  box-shadow: none;
  background: var(--fg);
}

main {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 48px 22px 96px;
}

.hero { position: relative; padding: 28px 0 8px; text-align: center; }
.hero.slim { text-align: left; padding-top: 8px; }
.hero-glow {
  position: absolute;
  left: 50%;
  top: -80px;
  width: 640px;
  height: 320px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(41, 151, 255, 0.22), transparent 70%);
  pointer-events: none;
  filter: blur(8px);
}
.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero h1 {
  margin: 0 auto 14px;
  max-width: 16ch;
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.05;
}
.hero.slim h1 { margin-left: 0; max-width: 20ch; font-size: clamp(32px, 5vw, 48px); }
.lede {
  color: var(--muted);
  max-width: 46ch;
  margin: 0 auto 22px;
  font-size: 17px;
  line-height: 1.45;
}
.hero.slim .lede { margin-left: 0; }
.stats { color: var(--dim); font-size: 13px; margin: 16px 0 0; font-variant-numeric: tabular-nums; }

.searchbox { margin: 28px auto 0; max-width: 640px; }
.search-shell {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--panel);
  border: 0.5px solid var(--line);
  border-radius: 16px;
  padding: 6px 6px 6px 16px;
  box-shadow: var(--shadow);
}
.search-glyph {
  width: 14px;
  height: 14px;
  border: 1.6px solid var(--dim);
  border-radius: 50%;
  position: relative;
  flex: 0 0 auto;
}
.search-glyph::after {
  content: "";
  position: absolute;
  width: 7px;
  height: 1.6px;
  background: var(--dim);
  right: -5px;
  bottom: -2px;
  transform: rotate(45deg);
  border-radius: 1px;
}
.search-input {
  flex: 1;
  min-height: 40px;
  border: 0;
  background: transparent;
  color: var(--fg);
  font: inherit;
  outline: none;
}
.search-go {
  min-height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: 12px;
  background: var(--fg);
  color: var(--bg);
  font: 650 13px/1 var(--font);
  cursor: pointer;
}
.engines { display: flex; justify-content: center; gap: 6px; margin-top: 12px; }
.engine {
  border: 0.5px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 5px 12px;
  cursor: pointer;
  font: 500 12px/1 var(--font);
}
.engine.on { background: var(--accent-soft); color: var(--accent); border-color: transparent; }

.cat-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 28px 0 8px;
  position: sticky;
  top: calc(var(--nav) + 8px);
  z-index: 8;
  padding: 8px 0;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(16px);
}
.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  border: 0.5px solid var(--line);
  background: var(--panel-2);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 550;
  opacity: 1;
}
.cat-chip:hover { color: var(--fg); border-color: var(--fg); }
.cat-chip.on {
  color: var(--bg);
  background: var(--fg);
  border-color: transparent;
}
.chip-n {
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--dim);
  font-family: var(--mono);
}
.cat-chip.on .chip-n { color: color-mix(in srgb, var(--bg) 70%, transparent); }

.sec-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  margin: 48px 0 18px;
}
h2 {
  font-size: 32px;
  font-weight: 650;
  letter-spacing: -0.035em;
  margin: 0;
}
.sorts { display: flex; gap: 4px; }
.sort {
  color: var(--muted);
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 999px;
  opacity: 1;
}
.sort.on { color: var(--fg); background: var(--panel); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.skill-card {
  position: relative;
  background: var(--panel);
  border: 0.5px solid var(--line);
  border-radius: 22px;
  padding: 18px 18px 16px;
  min-height: 196px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.skill-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--fg) 28%, var(--line));
}
.card-hit { color: inherit; display: flex; flex-direction: column; flex: 1; opacity: 1; }
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
}
.rank-n {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  letter-spacing: 0.04em;
}
.card-metric {
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.avatar {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 15px;
  background: hsl(var(--h) 42% 16%);
  color: hsl(var(--h) 80% 78%);
  margin-bottom: 12px;
}
:root[data-theme="light"] .avatar {
  background: hsl(var(--h) 70% 94%);
  color: hsl(var(--h) 55% 32%);
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .avatar {
    background: hsl(var(--h) 70% 94%);
    color: hsl(var(--h) 55% 32%);
  }
}
.card-name {
  margin: 0;
  font-size: 20px;
  font-weight: 650;
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.card-owner {
  margin: 6px 0 0;
  color: var(--dim);
  font-size: 12px;
  font-family: var(--mono);
}
.card-desc {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-desc.muted { opacity: 0.7; }
.card-open {
  position: absolute;
  right: 16px;
  bottom: 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.15s ease;
}
.skill-card:hover .card-open { opacity: 1; }

.boards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 16px;
}
.boards.single { grid-template-columns: 1fr; }
.chart {
  background: var(--panel);
  border: 0.5px solid var(--line);
  border-radius: 22px;
  padding: 18px 8px 10px;
}
.chart.solo {
  background: transparent;
  border: 0;
  padding: 0;
}
.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 0 12px 10px;
}
.chart-head h3 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.03em;
  font-weight: 650;
}
.chart-blurb { margin: 4px 0 0; color: var(--dim); font-size: 13px; }
.see-all { color: var(--accent); font-size: 13px; font-weight: 600; white-space: nowrap; }
.chart-list { display: flex; flex-direction: column; }
.chart-list.wide { background: var(--panel); border: 0.5px solid var(--line); border-radius: 22px; padding: 8px; }
.chart-row {
  display: grid;
  grid-template-columns: 28px 36px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  border-radius: 12px;
  color: inherit;
  opacity: 1;
}
.chart-row:hover { background: var(--panel-2); }
.chart-row .n {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--dim);
  text-align: right;
}
.chart-row.podium-1 .n { color: var(--gold); font-weight: 700; }
.chart-row.podium-2 .n { color: var(--silver); font-weight: 700; }
.chart-row.podium-3 .n { color: var(--bronze); font-weight: 700; }
.chart-row .avatar { width: 32px; height: 32px; margin: 0; font-size: 13px; border-radius: 9px; }
.chart-copy { min-width: 0; display: flex; flex-direction: column; }
.chart-copy .name {
  font-weight: 620;
  font-size: 14px;
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chart-copy .sub {
  color: var(--dim);
  font-size: 11.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chart-row .num {
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--muted);
  font-family: var(--mono);
}

.eco-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 12px;
}
.eco-card {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  background: var(--panel);
  border: 0.5px solid var(--line);
  border-radius: 18px;
  padding: 16px;
}
.eco-card h3 { margin: 0 0 4px; font-size: 16px; letter-spacing: -0.02em; }
.eco-card h3 a { color: inherit; }
.eco-card p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.eco-card .meta { color: var(--dim); font-size: 12px; }
.kind {
  display: inline-block;
  margin-left: 0;
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 650;
}
.k-directory { background: rgba(191, 90, 242, 0.14); color: #bf5af2; }
.k-cli { background: rgba(48, 209, 88, 0.14); color: #30d158; }
.k-tutorial, .k-spec { background: rgba(255, 214, 10, 0.14); color: #ffd60a; }
.k-agent { background: rgba(41, 151, 255, 0.14); color: #2997ff; }

.item {
  background: var(--panel);
  border: 0.5px solid var(--line);
  border-radius: 28px;
  padding: 32px;
  box-shadow: var(--shadow);
}
.item-hero { display: flex; gap: 16px; align-items: flex-start; }
.item-hero .avatar { width: 56px; height: 56px; font-size: 22px; border-radius: 16px; margin: 0; }
.item h1 { margin: 0 0 8px; font-size: 36px; letter-spacing: -0.035em; }
.facts {
  list-style: none;
  padding: 18px 0;
  margin: 18px 0;
  border-top: 0.5px solid var(--line);
  border-bottom: 0.5px solid var(--line);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}
.facts li { display: flex; flex-direction: column; gap: 4px; }
.facts span { color: var(--dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; }
.btn {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  background: var(--fg);
  color: var(--bg);
  border-radius: 999px;
  font-weight: 650;
  opacity: 1;
}
.btn:hover { opacity: 0.88; }
.cmd {
  background: #0b0b0d;
  color: #f5f5f7;
  padding: 14px 16px;
  border-radius: 14px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 13px;
  border: 0.5px solid var(--line);
}
.ghost {
  margin-top: 8px;
  border: 0.5px solid var(--line);
  background: transparent;
  color: var(--fg);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  font: inherit;
}
.rate { margin-top: 22px; padding-top: 16px; }
.stars { display: flex; gap: 6px; flex-wrap: wrap; }
.stars button {
  border: 0.5px solid var(--line);
  background: var(--bg);
  color: var(--gold);
  border-radius: 999px;
  padding: 6px 10px;
  cursor: pointer;
  font: inherit;
}
.prose { max-width: 62ch; }
.hint, .empty { color: var(--dim); font-size: 13px; }
.crumb { color: var(--muted); font-size: 13px; }
.crumb a { color: var(--muted); }

.foot {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 22px 48px;
  color: var(--dim);
  font-size: 12.5px;
}
.foot nav { display: flex; gap: 16px; }

@media (min-width: 960px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .boards { grid-template-columns: 1fr; }
  .nav { display: none; }
  .hero h1 { font-size: 36px; }
  .card-open { opacity: 1; }
}
@media (max-width: 640px) {
  .card-grid { grid-template-columns: 1fr; }
  main { padding-top: 28px; }
  .sec-head { flex-direction: column; align-items: flex-start; }
}