:root {
  --bg: #070b1e;
  --bg-elevated: #0c1229;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e8edf7;
  --text-secondary: #9aa8c7;
  --accent: #4f7fff;
  --accent-soft: #7a9dff;
  --accent-muted: rgba(79, 127, 255, 0.14);
  --accent-border: rgba(79, 127, 255, 0.32);
  --green: #3ecf8e;
  --blue: #4f7fff;
  --orange: #f5a623;
  --red: #ff6b6b;
  --radius: 14px;
  --radius-sm: 10px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "Cascadia Code", "Consolas", "SF Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 40% at 15% -5%, rgba(79, 127, 255, 0.18), transparent 55%),
    radial-gradient(ellipse 50% 35% at 85% 0%, rgba(120, 90, 255, 0.1), transparent 50%);
  z-index: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(7, 11, 30, 0.82);
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #4f7fff, #6b5cff);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: -0.03em;
  box-shadow: 0 8px 24px rgba(79, 127, 255, 0.35);
}

.brand-text h1 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.brand-text p {
  margin: 2px 0 0;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.header-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.header-links a {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.85rem;
  text-decoration: none;
}

.header-links a:hover {
  border-color: var(--accent-border);
  background: var(--accent-muted);
  text-decoration: none;
}

.layout {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 24px 64px;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 92px;
}

.sidebar-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  padding: 16px;
}

.sidebar-card h2 {
  margin: 0 0 12px;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.nav-group { margin-bottom: 16px; }
.nav-group:last-child { margin-bottom: 0; }

.nav-group-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-soft);
  margin: 0 0 8px;
}

.nav-group a {
  display: block;
  padding: 6px 10px;
  margin: 0 -10px;
  border-radius: 8px;
  font-size: 0.84rem;
  color: var(--text-secondary);
  text-decoration: none;
}

.nav-group a:hover,
.nav-group a.active {
  color: var(--text);
  background: var(--surface-hover);
  text-decoration: none;
}

.content { min-width: 0; }

.intro-card,
.endpoint-card,
.auth-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  padding: 24px;
  margin-bottom: 20px;
}

.intro-card h2,
.section-title {
  margin: 0 0 10px;
  font-size: 1.35rem;
}

.intro-card p,
.endpoint-desc,
.auth-card p {
  margin: 0 0 12px;
  color: var(--text-secondary);
}

.intro-card p:last-child,
.auth-card p:last-child { margin-bottom: 0; }

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.pill {
  font-size: 0.78rem;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
}

.tag-section { margin-bottom: 28px; }

.tag-heading {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.tag-heading h3 {
  margin: 0;
  font-size: 1.1rem;
}

.tag-heading span {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.endpoint-card { scroll-margin-top: 96px; }

.endpoint-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.method {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 8px;
  letter-spacing: 0.04em;
}

.method-get { background: rgba(62, 207, 142, 0.15); color: var(--green); }
.method-post { background: rgba(79, 127, 255, 0.18); color: var(--blue); }
.method-delete { background: rgba(255, 107, 107, 0.15); color: var(--red); }
.method-patch { background: rgba(245, 166, 35, 0.15); color: var(--orange); }

.path {
  font-family: var(--mono);
  font-size: 0.92rem;
  color: var(--text);
  word-break: break-all;
}

.endpoint-title {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin: 14px 0;
}

.meta-item {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.82rem;
}

.meta-item strong {
  display: block;
  color: var(--text-secondary);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.code-block {
  margin: 0;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: #050814;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.5;
  color: #c8d4ef;
}

.params-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.params-list li {
  padding: 10px 0;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
}

.params-list li:first-child { border-top: 0; padding-top: 0; }

.params-list code {
  font-family: var(--mono);
  color: var(--accent-soft);
}

.responses {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.response-chip {
  font-size: 0.78rem;
  padding: 4px 9px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.response-chip em {
  font-style: normal;
  color: var(--green);
  margin-right: 6px;
  font-family: var(--mono);
}

.loading, .error {
  padding: 48px 24px;
  text-align: center;
  color: var(--text-secondary);
}

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}