:root {
  color-scheme: light dark;
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #cbd5e1;
  --link: #1d4ed8;
  --code-bg: #e2e8f0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --surface: #0b1220;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: #334155;
    --link: #93c5fd;
    --code-bg: #1e293b;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}

a {
  color: var(--link);
}

.portal-top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  backdrop-filter: blur(6px);
}

.portal-top a {
  text-decoration: none;
}

.portal-top a:hover {
  text-decoration: underline;
}

.portal-path {
  color: var(--muted);
  font-size: 0.875rem;
}

#doc-root {
  max-width: 980px;
  margin: 0 auto;
  padding: 1.6rem 1rem 3rem;
  line-height: 1.65;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.25;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

p,
ul,
ol,
pre,
blockquote,
table {
  margin-top: 0.85rem;
  margin-bottom: 0.85rem;
}

ul,
ol {
  padding-left: 1.4rem;
}

li + li {
  margin-top: 0.25rem;
}

code {
  padding: 0.1rem 0.3rem;
  border-radius: 0.25rem;
  background: var(--code-bg);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, Liberation Mono, monospace;
  font-size: 0.92em;
}

pre {
  overflow-x: auto;
  padding: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  background: var(--surface);
}

pre code {
  padding: 0;
  background: transparent;
}

blockquote {
  margin-left: 0;
  padding-left: 0.9rem;
  border-left: 3px solid var(--border);
  color: var(--muted);
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 1.3rem 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

th,
td {
  text-align: left;
  border: 1px solid var(--border);
  padding: 0.45rem 0.55rem;
  vertical-align: top;
}

th {
  background: color-mix(in srgb, var(--surface) 90%, var(--border));
}

.portal-alert {
  border: 1px solid #ef4444;
  background: color-mix(in srgb, #ef4444 10%, var(--surface));
  color: inherit;
  border-radius: 0.35rem;
  padding: 0.8rem;
  white-space: pre-wrap;
}