:root {
  color-scheme: light;
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-muted: #f1f5f9;
  --text: #111827;
  --muted: #475569;
  --faint: #64748b;
  --line: #dbe3ef;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --code-bg: #0f172a;
  --code-text: #e2e8f0;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.docs-shell {
  min-height: 100vh;
}

.docs-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(248, 250, 252, 0.95);
  backdrop-filter: blur(12px);
}

.docs-brand {
  color: var(--text);
  font-size: 15px;
  font-weight: 900;
}

.docs-toplinks {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 14px;
}

.docs-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr) 220px;
  gap: 32px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 34px 24px 80px;
}

.docs-sidebar,
.docs-toc {
  position: sticky;
  top: 72px;
  align-self: start;
}

.docs-sidebar nav,
.docs-toc nav {
  display: grid;
  gap: 6px;
}

.docs-label {
  margin: 22px 0 8px;
  color: var(--faint);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.docs-sidebar a,
.docs-toc a {
  display: block;
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.docs-sidebar a[aria-current="page"],
.docs-sidebar a:hover,
.docs-toc a:hover {
  background: var(--accent-soft);
  color: #1d4ed8;
  text-decoration: none;
}

.docs-main {
  min-width: 0;
}

.docs-hero {
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.docs-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0 0 14px;
  font-size: 42px;
  line-height: 1.18;
  letter-spacing: 0;
}

h2 {
  margin: 42px 0 12px;
  font-size: 26px;
  line-height: 1.28;
  letter-spacing: 0;
}

h3 {
  margin: 28px 0 8px;
  font-size: 19px;
  letter-spacing: 0;
}

p,
li {
  font-size: 16px;
}

.docs-lead {
  max-width: 780px;
  margin: 0;
  color: var(--muted);
  font-size: 19px;
}

.docs-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.docs-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 12px;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e40af;
  font-size: 13px;
  font-weight: 900;
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0 8px;
}

.docs-card {
  display: block;
  min-height: 100%;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
}

.docs-card:hover {
  border-color: #93c5fd;
  text-decoration: none;
}

.docs-card strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
  font-size: 17px;
}

.docs-card span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

.docs-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0 8px;
}

.docs-steps article,
.docs-feature-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.docs-steps article {
  padding: 18px;
}

.docs-steps span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #1d4ed8;
  color: #ffffff;
  font-size: 13px;
  font-weight: 900;
}

.docs-steps h3,
.docs-feature-grid h3 {
  margin-top: 14px;
}

.docs-steps p,
.docs-feature-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.docs-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0 8px;
}

.docs-feature-grid article {
  padding: 18px;
}

.docs-callout {
  margin: 24px 0;
  padding: 18px 20px;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  background: #eff6ff;
}

.docs-callout strong {
  display: block;
  margin-bottom: 6px;
}

.docs-table {
  width: 100%;
  margin: 18px 0;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.docs-table th,
.docs-table td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 15px;
}

.docs-table th {
  background: var(--surface-muted);
  font-weight: 900;
}

.docs-table tr:last-child td {
  border-bottom: 0;
}

.code-block {
  margin: 16px 0;
  padding: 16px;
  overflow-x: auto;
  border-radius: 8px;
  background: var(--code-bg);
  color: var(--code-text);
  font-size: 14px;
  line-height: 1.55;
}

.code-block code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.docs-figure {
  margin: 24px 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.docs-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.docs-figure figcaption {
  margin-top: 10px;
  color: var(--faint);
  font-size: 13px;
}

.docs-footer {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 14px;
}

@media (max-width: 980px) {
  .docs-layout {
    grid-template-columns: 1fr;
  }

  .docs-sidebar,
  .docs-toc {
    position: static;
  }

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

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

@media (max-width: 640px) {
  .docs-topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 18px;
  }

  .docs-layout {
    padding: 26px 18px 64px;
  }

  h1 {
    font-size: 32px;
  }

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

  .docs-steps,
  .docs-feature-grid {
    grid-template-columns: 1fr;
  }

  .docs-sidebar nav,
  .docs-toc nav {
    grid-template-columns: 1fr;
  }

  .docs-table {
    display: block;
    overflow-x: auto;
  }
}