/* Doku: gleiche Gestaltungssprache wie www und Portal. Werte aus tokens.css (@itk/ui-tokens, ADR 0006). */
:root {
  font-family: var(--itk-font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--itk-ink);
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--itk-surface); }
a { color: var(--itk-accent); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--itk-accent); outline-offset: 2px; border-radius: 2px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--itk-ink); color: #fff; padding: 8px 12px; border-radius: var(--itk-radius); z-index: 10; }
.skip:focus { left: 8px; }

/* Kopf */
.top { background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--itk-line); position: sticky; top: 0; z-index: 5; }
.bar { max-width: 1240px; margin: 0 auto; padding: 0 24px; min-height: 56px; display: flex; align-items: center; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 600; color: var(--itk-ink); text-decoration: none; letter-spacing: -0.025em; font-size: 1.0625rem; white-space: nowrap; }
.brand svg { width: 26px; height: 26px; }
.brand .tld { color: var(--itk-muted); font-weight: 500; }
.brand .tag { font: 500 0.75rem/1 var(--itk-mono); letter-spacing: 0; color: var(--itk-ink-2); background: var(--itk-sunken); border: 1px solid var(--itk-line); border-radius: 4px; padding: 4px 6px; margin-left: 4px; }
.api-link { margin-left: auto; color: var(--itk-ink-2); text-decoration: none; font-size: 0.9375rem; }
.api-link:hover { color: var(--itk-ink); }
.portal { display: inline-flex; align-items: center; min-height: 34px; padding: 0 12px; border-radius: var(--itk-radius); background: var(--itk-ink); color: #fff; text-decoration: none; font-size: 0.875rem; font-weight: 500; }
.portal:hover { background: #1f2a3d; }
.top.slim .bar { max-width: none; }
nav.inline { display: flex; gap: 2px 4px; flex-wrap: nowrap; overflow-x: auto; margin-left: 12px; font-size: 0.875rem; scrollbar-width: none; }
nav.inline a { color: var(--itk-ink-2); text-decoration: none; padding: 6px 8px; border-radius: var(--itk-radius); white-space: nowrap; }
nav.inline a:hover { background: var(--itk-sunken); color: var(--itk-ink); }
nav.inline a[aria-current='page'] { background: var(--itk-sunken); color: var(--itk-ink); font-weight: 500; }

/* Raster */
.layout { max-width: 1240px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: 56px; }
.layout > nav { padding: 32px 0; position: sticky; top: 56px; align-self: start; max-height: calc(100vh - 56px); overflow-y: auto; }
.layout > nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 1px; }
.layout > nav li { margin: 0; }
.layout > nav a { display: block; padding: 6px 10px; color: var(--itk-ink-2); text-decoration: none; border-radius: var(--itk-radius); font-size: 0.9375rem; }
.layout > nav a:hover { background: var(--itk-sunken); color: var(--itk-ink); }
.layout > nav a[aria-current='page'] { background: var(--itk-accent-soft); color: var(--itk-accent); font-weight: 500; }
main { padding: 36px 0 96px; max-width: 780px; min-width: 0; }
.layout.wide main { max-width: 900px; }

/* Text */
h1 { font-size: 2.25rem; font-weight: 600; letter-spacing: -0.035em; line-height: 1.12; margin: 0 0 18px; }
h2 { font-size: 1.375rem; font-weight: 600; letter-spacing: -0.022em; margin: 44px 0 12px; line-height: 1.25; padding-top: 4px; }
h3 { font-size: 1.0625rem; font-weight: 600; letter-spacing: -0.01em; margin: 28px 0 8px; }
p, ul, ol { margin: 0 0 16px; color: var(--itk-ink-2); }
li { margin: 4px 0; }
strong { color: var(--itk-ink); font-weight: 600; }
code { font-family: var(--itk-mono); font-size: 0.875em; background: var(--itk-sunken); border: 1px solid var(--itk-line); padding: 1px 5px; border-radius: 4px; color: var(--itk-ink); }
pre { background: var(--itk-code-bg); color: var(--itk-code-ink); padding: 16px 18px; border-radius: var(--itk-radius-lg); overflow-x: auto; margin: 0 0 20px; line-height: 1.65; }
pre code { background: none; border: 0; padding: 0; color: inherit; font-size: 0.8125rem; }
.table-wrap { overflow-x: auto; margin: 0 0 22px; border: 1px solid var(--itk-line); border-radius: var(--itk-radius-lg); }
table { border-collapse: collapse; width: 100%; font-size: 0.875rem; }
th, td { text-align: left; padding: 9px 12px; border-top: 1px solid var(--itk-line); vertical-align: top; }
thead th { border-top: 0; background: var(--itk-bg); font-weight: 500; color: var(--itk-muted); }
td.right, th.right { text-align: right; font-variant-numeric: tabular-nums; }
td code { white-space: nowrap; }
blockquote { margin: 0 0 16px; padding: 10px 16px; border-left: 3px solid var(--itk-accent); background: var(--itk-accent-soft); border-radius: 0 var(--itk-radius) var(--itk-radius) 0; }
blockquote p { margin: 0; color: #1b2a6b; }

/* Startseite */
.start-hero { padding: 12px 0 8px; }
.eyebrow { font: 500 0.8125rem/1 var(--itk-mono); color: var(--itk-accent); margin: 0 0 14px; }
.start-hero h1 { font-size: clamp(2rem, 4vw, 2.75rem); letter-spacing: -0.04em; max-width: 18ch; }
.lead { font-size: 1.1875rem; line-height: 1.55; max-width: 40rem; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.btn { display: inline-flex; align-items: center; min-height: 40px; padding: 0 16px; border-radius: var(--itk-radius); background: var(--itk-accent); color: #fff; text-decoration: none; font-weight: 500; font-size: 0.9375rem; border: 1px solid var(--itk-accent); }
.btn:hover { background: var(--itk-accent-hover); }
.btn.ghost { background: var(--itk-surface); color: var(--itk-ink); border-color: var(--itk-line-strong); }
.btn.ghost:hover { background: var(--itk-sunken); }
.quick { list-style: none; padding: 0; margin: 20px 0 16px; border: 1px solid var(--itk-line); border-radius: var(--itk-radius-lg); }
.quick > li { display: grid; grid-template-columns: 32px minmax(0, 1fr); gap: 16px; padding: 22px 22px 6px; margin: 0; border-top: 1px solid var(--itk-line); }
.quick > li:first-child { border-top: 0; }
.quick .n { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--itk-ink); color: #fff; font: 600 0.8125rem/1 var(--itk-mono); }
.quick h3 { margin: 2px 0 6px; }
.topics ul { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; }
.topics li { margin: 0; padding: 10px 0; border-top: 1px solid var(--itk-line); font-size: 0.9375rem; }
.topics li a { font-weight: 500; text-decoration: none; }
.topics li a:hover { text-decoration: underline; }

@media (max-width: 860px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 0; padding: 0 16px; }
  .bar { padding: 0 16px; }
  .layout > nav { position: static; padding: 12px 0 0; max-height: none; border-bottom: 1px solid var(--itk-line); }
  .layout > nav ul { display: flex; gap: 2px; overflow-x: auto; padding-bottom: 8px; scrollbar-width: none; }
  .layout > nav a { white-space: nowrap; font-size: 0.875rem; }
  .api-link { display: none; }
  .portal { margin-left: auto; }
  .topics ul { grid-template-columns: minmax(0, 1fr); }
  h1 { font-size: 1.875rem; }
}