:root {
  --bg: #0f0f12;
  --surface: #1a1a22;
  --surface-2: #22222c;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f4f4f8;
  --muted: #9b9bb0;
  --accent: #611f69;
  --accent-light: #8b5cf6;
  --green: #2eb67d;
  --amber: #ecb22e;
  --radius: 14px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
  --max: 720px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: #c4b5fd;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.hero {
  position: relative;
  padding: 56px 24px 48px;
  background: linear-gradient(135deg, #4a154b 0%, #611f69 40%, #3d2c6e 100%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 120%, rgba(46, 182, 125, 0.22) 0%, transparent 50%),
    radial-gradient(circle at 90% -20%, rgba(139, 92, 246, 0.28) 0%, transparent 45%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.brand img {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.hero .lead {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 52ch;
  margin-bottom: 24px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  font-size: 12px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.85);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(15, 15, 18, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 13px;
}

.nav a {
  color: var(--muted);
}

.nav a:hover {
  color: var(--text);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px 24px 64px;
}

section {
  margin-bottom: 48px;
}

section h2 {
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

section h3 {
  font-size: 1rem;
  margin: 24px 0 8px;
  color: #ddd6fe;
}

p,
ul,
ol {
  color: var(--muted);
  margin-bottom: 12px;
}

ul,
ol {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 6px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 16px 0;
}

.card strong {
  color: var(--text);
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
}

.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 36px;
  margin-bottom: 20px;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.2);
  color: #c4b5fd;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

pre,
code {
  font-family: var(--mono);
  font-size: 0.88em;
}

pre {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  overflow-x: auto;
  color: #e2e8f0;
  margin: 12px 0;
}

code {
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: 6px;
  color: #c4b5fd;
}

.url-demo {
  font-size: 13px;
  word-break: break-all;
}

.url-demo .wid {
  color: #c4b5fd;
  background: rgba(139, 92, 246, 0.15);
  padding: 1px 4px;
  border-radius: 4px;
}

.url-demo .cid {
  color: #6ee7b7;
  background: rgba(46, 182, 125, 0.15);
  padding: 1px 4px;
  border-radius: 4px;
}

.table-wrap {
  overflow-x: auto;
  margin: 12px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}

th {
  color: var(--text);
  font-weight: 600;
}

.callout {
  border-left: 3px solid var(--green);
  padding-left: 14px;
  margin: 16px 0;
}

.callout-warn {
  border-left-color: var(--amber);
}

footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 600px) {
  .hero {
    padding-top: 40px;
  }

  .nav-inner {
    justify-content: center;
  }
}