:root {
  color-scheme: dark;
  --bg: #080b10;
  --bg-soft: #0d131b;
  --panel: #101823;
  --panel-2: #0c131c;
  --border: #1e2b3a;
  --border-soft: #17212d;
  --text: #e7eef6;
  --muted: #8ea0b5;
  --dim: #63758a;
  --accent: #5eead4;
  --accent-2: #60a5fa;
  --accent-3: #c084fc;
  --warn: #fbbf24;
  --danger: #fb7185;
  --radius: 14px;
  --mono: ui-monospace, SFMono-Regular, "Cascadia Code", "JetBrains Mono", Consolas, "Liberation Mono", monospace;
  --sans: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(94, 234, 212, 0.10), transparent 60%),
    radial-gradient(800px 500px at 85% 0%, rgba(96, 165, 250, 0.10), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(94, 234, 212, 0.25); color: #fff; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

code, pre { font-family: var(--mono); }

code {
  background: rgba(94, 234, 212, 0.08);
  border: 1px solid rgba(94, 234, 212, 0.14);
  border-radius: 6px;
  padding: 0.1em 0.38em;
  font-size: 0.9em;
  color: #b8fff3;
}

.nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; color: #fff; }

.prompt {
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 800;
}

.nav nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
}
.nav nav a { color: var(--muted); }
.nav nav a:hover { color: var(--text); text-decoration: none; }

.nav-download {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
  color: var(--text) !important;
  background: rgba(255, 255, 255, 0.02);
}
.nav-download:hover { border-color: var(--accent); background: rgba(94, 234, 212, 0.08); }

main { max-width: 1120px; margin: 0 auto; padding: 0 24px 72px; }

.hero { padding: 56px 0 34px; max-width: 860px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.02);
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

h1 {
  margin: 22px 0 18px;
  font-size: clamp(36px, 6vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.045em;
  font-weight: 800;
}

.grad {
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 55%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  color: var(--muted);
  font-size: clamp(16px, 2vw, 18px);
  max-width: 700px;
  margin: 0 0 26px;
}

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 650;
  font-size: 15px;
}
.btn:hover { text-decoration: none; border-color: #33475c; background: rgba(255, 255, 255, 0.05); }

.btn.primary {
  background: linear-gradient(135deg, rgba(94, 234, 212, 0.95), rgba(96, 165, 250, 0.95));
  color: #041014;
  border: 0;
  box-shadow: 0 10px 34px rgba(94, 234, 212, 0.18);
}
.btn.primary:hover { filter: brightness(1.05); }

.size {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  border-radius: 999px;
  padding: 2px 7px;
  background: rgba(0, 0, 0, 0.18);
}
.btn:not(.primary) .size { background: rgba(255, 255, 255, 0.06); color: var(--muted); }

.code-wrap {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(0, 0, 0, 0.12)), var(--panel-2);
  overflow: hidden;
}

pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.75;
  color: #cfe3f7;
}
pre code { background: none; border: 0; padding: 0; color: inherit; font-size: inherit; }

.dim { color: var(--dim); }

.copy {
  position: absolute;
  top: 10px;
  right: 10px;
  border: 1px solid var(--border);
  background: rgba(8, 11, 16, 0.8);
  color: var(--muted);
  border-radius: 7px;
  font: 600 11px var(--mono);
  padding: 5px 8px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.code-wrap:hover .copy, .copy:focus-visible { opacity: 1; }
.copy:hover { color: var(--text); border-color: #33475c; }
.copy.done { color: var(--accent); border-color: var(--accent); }

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 16px;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 12px;
}
.meta-line strong { color: var(--accent); font-weight: 700; }

.section { padding: 56px 0 8px; }

.section-head { max-width: 720px; margin-bottom: 24px; }
.section-head h2 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: -0.03em;
}
.section-head p { margin: 0; color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.005)), var(--panel);
  padding: 20px;
  min-height: 150px;
}
.card:hover { border-color: #2c4054; }
.card-icon {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 14px;
  letter-spacing: 0.08em;
}
.card h3 { margin: 0 0 8px; font-size: 17px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.panel {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 22px;
}
.panel h3 { margin: 0 0 8px; font-size: 18px; }
.panel p { color: var(--muted); font-size: 14px; margin: 0 0 16px; }

.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  border: 1px solid rgba(94, 234, 212, 0.25);
  background: rgba(94, 234, 212, 0.06);
  border-radius: 5px;
  padding: 1px 6px;
  margin-right: 8px;
  vertical-align: 2px;
}

.code-wrap.small pre { padding: 14px 16px; font-size: 12px; }

.table-wrap {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: auto;
  background: var(--panel);
}
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
th { color: var(--dim); font-size: 12px; font-family: var(--mono); font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }
td { color: var(--muted); }
td code { white-space: nowrap; }

.note { color: var(--dim); font-size: 13px; margin-top: 14px; }
.note a { color: var(--muted); text-decoration: underline; text-underline-offset: 3px; }

.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checks li {
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  background: var(--panel);
  padding: 13px 16px;
  color: var(--muted);
  font-size: 14px;
}
.checks li span {
  display: inline-block;
  width: 20px;
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 800;
}
.checks li:last-child span, .checks li:nth-last-child(2) span { color: var(--warn); }

.download-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.download {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(94, 234, 212, 0.04), transparent), var(--panel);
  padding: 20px;
  color: var(--text);
}
.download:hover { text-decoration: none; border-color: var(--accent); }
.download-title { font-weight: 700; font-size: 17px; }
.download-sub { color: var(--muted); font-size: 13px; }
.download code {
  margin-top: 10px;
  font-size: 10.5px;
  color: var(--dim);
  background: none;
  border: 0;
  padding: 0;
  word-break: break-all;
  line-height: 1.5;
}

footer {
  border-top: 1px solid var(--border-soft);
  max-width: 1120px;
  margin: 0 auto;
  padding: 30px 24px 46px;
  color: var(--dim);
  font-size: 13px;
}
.footer-brand { color: var(--text); font-family: var(--mono); font-weight: 700; margin-bottom: 8px; }
footer p { margin: 4px 0; }
footer strong { color: var(--accent); }
.fine { color: #4d5f72; font-size: 12px; }

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr 1fr; }
  .two-col, .download-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .nav { padding: 16px; }
  .nav nav { gap: 12px; }
  .nav nav a:not(.nav-download) { display: none; }
  main { padding: 0 16px 56px; }
  .hero { padding-top: 34px; }
  .grid { grid-template-columns: 1fr; }
  h1 { letter-spacing: -0.035em; }
  th, td { padding: 12px 14px; }
  .copy { opacity: 1; }
}