:root {
  --bg: #0b1220;
  --bg-soft: #111a2e;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --primary: #2563eb;
  --primary-2: #7c3aed;
  --white: #ffffff;
  --success: #16a34a;
  --code-bg: #0f172a;
  --code-text: #e2e8f0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: #f8fafc;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  background: rgba(11, 18, 32, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  font-weight: 700;
  font-size: 1.2rem;
}

.brand svg {
  width: 26px;
  height: 26px;
  color: #3b82f6;
  flex-shrink: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.nav a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--white);
  text-decoration: none;
}

.nav .btn {
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
}

.hero {
  background:
    radial-gradient(circle at top center, rgba(59, 130, 246, 0.18), transparent 40%),
    linear-gradient(135deg, #071122 0%, #09162c 45%, #0b1220 100%);
  color: var(--white);
  padding: 72px 0 56px;
  padding-top: 60px;
}

.hero-inner {
  max-width: 860px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.26);
  color: #bfdbfe;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.06rem;
  max-width: 760px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border-radius: 12px;
  font-weight: 700;
  transition: 0.2s ease;
}

.btn-primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 14px 34px rgba(37, 99, 235, 0.22);
}

.btn-primary:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
}

.btn-secondary:hover {
  text-decoration: none;
  background: rgba(255, 255, 255, 0.08);
}

.layout {
  padding: 40px 0 72px;
}

.grid {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.toc {
  position: sticky;
  top: 96px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}

.toc h2 {
  margin: 0 0 14px;
  font-size: 1rem;
}

.toc ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc li+li {
  margin-top: 10px;
}

.toc a {
  color: #334155;
  font-size: 0.95rem;
}

.content {
  display: grid;
  gap: 22px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}

.card h2 {
  margin: 0 0 14px;
  font-size: 1.6rem;
  line-height: 1.2;
}

.card h3 {
  margin: 24px 0 12px;
  font-size: 1.1rem;
}

.card p {
  margin: 0 0 14px;
  color: #334155;
}

.card ul,
.card ol {
  margin: 0 0 14px 20px;
  color: #334155;
}

.card li+li {
  margin-top: 8px;
}

.note {
  padding: 14px 16px;
  border-left: 4px solid var(--primary);
  background: #eff6ff;
  border-radius: 10px;
  color: #1e3a8a;
  margin: 16px 0;
}

pre {
  margin: 14px 0 0;
  padding: 18px;
  border-radius: 16px;
  background: var(--code-bg);
  color: var(--code-text);
  overflow-x: auto;
  font-size: 0.94rem;
  line-height: 1.55;
}

code {
  font-family: "Fira Code", Consolas, Monaco, monospace;
}

.endpoint {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  padding: 10px 14px;
  border-radius: 12px;
  background: #f8fafc;
  border: 1px solid var(--line);
  font-family: "Fira Code", Consolas, Monaco, monospace;
  font-size: 0.95rem;
}

.method {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--white);
}

.post {
  background: #2563eb;
}

.get {
  background: var(--success);
}

.footer {
  background: var(--bg);
  color: rgba(255, 255, 255, 0.72);
  padding: 28px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer p {
  margin: 0;
  text-align: center;
  font-size: 0.95rem;
}

@media (max-width: 960px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }
}

@media (max-width: 640px) {
  .topbar-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 0;
  }

  .nav {
    gap: 12px;
  }

  .hero {
    padding: 56px 0 42px;
  }

  .card {
    padding: 22px;
  }
}

.breadcrumb-wrap {
  padding-top: 70px;
  
  background: #f8fafc;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.breadcrumb-wrap .container {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 12px;
  padding-bottom: 12px;
}

.breadcrumb-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.2px;
}

.breadcrumb-list li {
  color: #475569;
}

.breadcrumb-list li + li::before {
  content: "/";
  margin-right: 10px;
  color: #94a3b8;
}

.breadcrumb-list li:last-child {
  color: #0f172a;
  font-weight: 600;
}

.breadcrumb-list a {
  color: #2563eb;
  text-decoration: none;
}

.breadcrumb-list a:hover {
  text-decoration: underline;
  color: #1d4ed8;
}

.breadcrumb-list li[aria-current="page"] {
  color: #0f172a;
  font-weight: 600;
}