:root {
  color-scheme: light;
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-dark: #1e3a8a;
  --border: rgba(15, 23, 42, 0.08);
  --shadow: 0 20px 40px -24px rgba(15, 23, 42, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  padding: 4rem 8vw 3rem;
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  color: #fff;
}

.hero-content h1 {
  font-size: clamp(2rem, 3vw, 3rem);
  margin: 0.5rem 0;
}

.hero-content p {
  max-width: 520px;
  color: rgba(255, 255, 255, 0.8);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  font-size: 0.85rem;
  font-weight: 600;
}

.hero-actions {
  margin-top: 1.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.primary {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 10px 20px -10px rgba(15, 23, 42, 0.4);
}

.btn.ghost {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.btn:hover {
  transform: translateY(-2px);
}

.hero-card {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 24px;
  padding: 1.5rem;
  backdrop-filter: blur(8px);
}

.hero-card code {
  display: inline-block;
  margin: 0.75rem 0;
  padding: 0.35rem 0.6rem;
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.4);
  color: #fff;
  font-family: "SFMono-Regular", Consolas, monospace;
}

.toc {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.25rem 8vw;
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.toc a {
  font-weight: 600;
  color: var(--muted);
}

main {
  padding: 2rem 8vw 4rem;
}

.section {
  margin-bottom: 3.5rem;
}

.section-header h2 {
  margin-bottom: 0.5rem;
}

.section-header p {
  margin-top: 0;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid.three {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--card);
  border-radius: 20px;
  padding: 1.5rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.card h3 {
  margin-top: 0;
}

.timeline {
  display: grid;
  gap: 1rem;
}

.timeline-step {
  background: var(--card);
  border-radius: 16px;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.timeline-step span {
  background: var(--primary);
  color: #fff;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-weight: 700;
}

.filter-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.filter-btn {
  border: 1px solid var(--border);
  background: #fff;
  padding: 0.45rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
}

.filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: transparent;
}

.endpoint-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.endpoint-card {
  background: var(--card);
  border-radius: 20px;
  padding: 1.4rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.endpoint-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
}

.method {
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.method.get {
  background: rgba(34, 197, 94, 0.15);
  color: #15803d;
}


.endpoint-meta {
  padding-left: 1.2rem;
  margin: 0;
  color: var(--muted);
}

.code-block {
  position: relative;
  background: #0f172a;
  border-radius: 14px;
  padding: 1rem 1.2rem;
  overflow: hidden;
  color: #e2e8f0;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.85rem;
}

.code-block pre {
  margin: 0;
  white-space: pre-wrap;
}

.copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: rgba(255, 255, 255, 0.12);
  border: none;
  color: #fff;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.75rem;
}

.copy-btn.success {
  background: rgba(34, 197, 94, 0.7);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.checklist li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.checklist li::before {
  content: "✔";
  color: #16a34a;
  font-weight: 700;
}

.footer {
  text-align: center;
  padding: 2rem 1rem 3rem;
  color: var(--muted);
}

@media (max-width: 720px) {
  .hero {
    padding: 3rem 6vw;
  }

  .toc {
    gap: 0.75rem;
    font-size: 0.9rem;
  }
}