:root {
  --bg: #f3f5f9;
  --surface: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --brand: #1086d6;
  --brand-deep: #0a5ba0;
  --radius: 18px;
  --shell: 1140px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Sora", "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}

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

.shell {
  width: min(var(--shell), calc(100% - 2rem));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: #111827;
  color: #fff;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  z-index: 9999;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-shell {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
}

.brand-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(140deg, #1f9de3, #0b64b2);
  color: #fff;
  font-size: 0.75rem;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
}

.site-nav a {
  color: #334155;
  font-size: 0.95rem;
  font-weight: 600;
}

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

.site-nav a[aria-current="page"] {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.section {
  padding: 5.5rem 0;
}

.hero-shell {
  text-align: center;
}

.badge {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: #dbeafe;
  color: #0b64b2;
  font-size: 0.85rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
}

h1 {
  margin-inline: auto;
  max-width: 14ch;
  font-size: clamp(2.1rem, 5vw, 4.35rem);
  letter-spacing: -0.03em;
}

h1 span {
  color: var(--brand);
}

.hero-copy {
  max-width: 62ch;
  margin: 1.2rem auto 0;
  color: #5b6b81;
  font-size: 1.15rem;
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(120deg, #1299eb, #0a6bc0);
  color: #fff;
  box-shadow: 0 12px 28px rgba(16, 134, 214, 0.25);
}

.btn-light {
  background: #fff;
  color: #243246;
  border-color: var(--line);
}

.btn-dark {
  min-height: 40px;
  padding-inline: 1rem;
  background: #0f172a;
  color: #fff;
}

.code-window {
  margin: 2.8rem auto 0;
  max-width: 760px;
  text-align: left;
  border-radius: 16px;
  overflow: hidden;
  background: #0b1530;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.22);
}

.code-top {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.65rem 0.85rem;
  background: #121f3d;
  color: #9fb1cd;
}

.code-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-top span:nth-child(1) { background: #ef4444; }
.code-top span:nth-child(2) { background: #f59e0b; }
.code-top span:nth-child(3) { background: #22c55e; }

.code-top small {
  margin-left: 0.45rem;
  font-size: 0.75rem;
}

.code-window pre {
  margin: 0;
  padding: 1rem 1.15rem 1.2rem;
  overflow-x: auto;
}

.code-window code {
  color: #e2e8f0;
  font-family: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.9rem;
}

.alt-bg {
  background: #edf1f7;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.features h2,
.features .section-copy {
  text-align: center;
}

.features h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.section-copy {
  margin: 0.8rem auto 0;
  color: #64748b;
}

.grid {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.2rem;
}

.card h3 {
  font-size: 1.08rem;
}

.card p {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.cta {
  max-width: 820px;
  margin-inline: auto;
  text-align: center;
  color: #fff;
  border-radius: 22px;
  padding: 3rem 1rem;
  background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.16), transparent 45%),
    linear-gradient(120deg, #0d87d5, #158bd9 45%, #0f77c2);
}

.cta h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.cta p {
  margin: 0.8rem 0 0;
  color: #d7ecfb;
}

.cta-btn {
  margin-top: 1.5rem;
}

.site-footer {
  margin-top: 1.8rem;
  border-top: 1px solid var(--line);
  background: #eef2f7;
}

.footer-grid {
  padding: 2.4rem 0 1.4rem;
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 1.2fr 1fr 1fr;
}

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

.footer-title {
  margin: 0 0 0.7rem;
  font-weight: 700;
}

.footer-grid a {
  display: block;
  margin: 0.32rem 0;
  color: #334155;
}

.muted {
  color: #64748b;
}

.footer-bottom {
  padding: 0.75rem 0 1.4rem;
  border-top: 1px solid #dbe3ef;
  color: #64748b;
}

.page-main {
  padding: 3rem 0 4rem;
}

.page-main h1 {
  font-size: clamp(1.9rem, 4vw, 3rem);
  max-width: none;
}

.page-main .lead {
  margin: 0.85rem 0 1.4rem;
  color: #5b6b81;
}

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem 1.2rem;
  margin-top: 0.9rem;
}

.panel h2 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.panel p,
.panel li {
  color: #334155;
}

.panel code {
  background: #eaf1ff;
  border-radius: 6px;
  padding: 0.1rem 0.32rem;
}

.panel pre {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 12px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
}

.endpoint-grid {
  display: grid;
  gap: 1rem;
}

.endpoint-card {
  border: 1px solid #dbe3ef;
  border-radius: 12px;
  padding: 1rem;
  background: #fbfdff;
}

.endpoint-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.1rem;
}

.endpoint-meta {
  margin: 0;
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-wrap: wrap;
}

.endpoint-desc {
  margin: 0.6rem 0 0.9rem;
}

.badge-auth,
.badge-public {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.1rem 0.5rem;
  font-size: 0.74rem;
  font-weight: 700;
}

.badge-auth {
  color: #0f172a;
  background: #e2e8f0;
}

.badge-public {
  color: #14532d;
  background: #dcfce7;
}

.snippet-grid {
  display: grid;
  gap: 0.8rem;
}

.snippet {
  border: 1px solid #dbe3ef;
  border-radius: 10px;
  overflow: hidden;
  background: #ffffff;
}

.snippet-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid #dbe3ef;
  background: #f8fafc;
}

.copy-btn {
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #0f172a;
  border-radius: 8px;
  padding: 0.25rem 0.55rem;
  font-size: 0.78rem;
  cursor: pointer;
}

.copy-btn:hover {
  background: #f1f5f9;
}

.snippet pre {
  margin: 0;
  border-radius: 0;
  background: #0f172a;
  color: #e2e8f0;
}

.code-snippet {
  border: 1px solid #dbe3ef;
  border-radius: 12px;
  overflow: hidden;
  background: #ffffff;
}

.code-toolbar {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.6rem;
  align-items: center;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid #dbe3ef;
  background: #f8fafc;
}

.code-tabs {
  display: inline-flex;
  gap: 0.3rem;
  padding: 0.22rem;
  background: #e5e7eb;
  border-radius: 12px;
  width: fit-content;
}

.code-tab {
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #111827;
  padding: 0.4rem 0.7rem;
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
}

.code-tab.is-active {
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.2);
}

.code-lang {
  font-size: 0.8rem;
  color: #475569;
  font-weight: 600;
}

.code-panel pre {
  margin: 0;
  border-radius: 0;
  background: #f8fafc;
  color: #0f172a;
  padding: 1rem;
  overflow-x: auto;
}

.code-panel code {
  font-size: 0.92rem;
  line-height: 1.6;
}

.tok-keyword {
  color: #dc2626;
  font-weight: 700;
}

.tok-string {
  color: #1d4ed8;
}

.tok-number {
  color: #7c3aed;
}

.tok-comment {
  color: #64748b;
  font-style: italic;
}

@media (max-width: 760px) {
  .code-toolbar {
    grid-template-columns: 1fr auto;
  }

  .code-lang {
    display: none;
  }

  .code-tabs {
    width: 100%;
    overflow-x: auto;
    white-space: nowrap;
  }
}

@media (max-width: 920px) {
  .site-nav {
    gap: 0.8rem;
  }

  .site-nav a {
    font-size: 0.85rem;
  }

  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .nav-shell {
    min-height: auto;
    padding: 0.75rem 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    width: 100%;
    flex-wrap: wrap;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}