:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --bg-soft: #f7f7f8;
  --fg: #1d1d1f;
  --fg-muted: #6a6a70;
  --line: #e4e4e7;
  --line-strong: #d0d0d6;
  --accent: #0b62c4;
  --accent-soft: #eaf2fd;
  --code-bg: #f6f7f9;
  --mark: #fff3bf;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "DejaVu Sans Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16171a;
    --bg-soft: #1d1e22;
    --fg: #e8e8ea;
    --fg-muted: #a0a0a8;
    --line: #2c2d33;
    --line-strong: #3a3b42;
    --accent: #6cb0ff;
    --accent-soft: #1b2735;
    --code-bg: #1c1d21;
    --mark: #3d3520;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

html { font-size: 16px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, kbd { font-family: var(--mono); }

/* ---------------------------------------------------------------- Kopfzeile */

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 1.25rem;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 650;
  font-size: 1rem;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }

.top-meta { color: var(--fg-muted); font-size: 0.82rem; }

.top form { margin-left: auto; }

.linkish {
  background: none;
  border: 1px solid var(--line);
  color: var(--fg-muted);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
}
.linkish:hover { color: var(--fg); border-color: var(--line-strong); }

/* ------------------------------------------------------------------ Layout */

.layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 0;
  align-items: start;
}

.side {
  position: sticky;
  top: 49px;
  max-height: calc(100vh - 49px);
  overflow-y: auto;
  padding: 1rem 0.85rem 2rem;
  border-right: 1px solid var(--line);
  background: var(--bg-soft);
}

.side-head {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--fg-muted);
  padding: 0 0.4rem 0.5rem;
}

.side-list { list-style: none; margin: 0; padding: 0; }

.side-list li { margin-bottom: 1px; }

.side-list a {
  display: block;
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  color: var(--fg);
}
.side-list a:hover { background: var(--bg); text-decoration: none; }

.side-list li.active a { background: var(--accent-soft); }

.side-title { display: block; font-size: 0.86rem; line-height: 1.35; }

.side-meta { display: block; font-size: 0.68rem; color: var(--fg-muted); }

.content {
  padding: 2rem clamp(1rem, 4vw, 3rem) 4rem;
  min-width: 0;
}

.content:has(> .toc) {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 210px;
  gap: 2.5rem;
  align-items: start;
}

/* -------------------------------------------------------------- Übersicht */

.page-head h1, .doc-head h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 0.4rem;
}

.lede { color: var(--fg-muted); font-size: 0.9rem; margin: 0 0 1.1rem; }
.lede code { font-size: 0.82em; }

.filter {
  width: min(420px, 100%);
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 0.88rem;
}
.filter:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.group { margin-top: 2rem; }

.group h2 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--fg-muted);
  margin: 0 0 0.5rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--line);
}

.doc-list { list-style: none; margin: 0; padding: 0; }

.doc-list li {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.55rem 0.25rem;
  border-bottom: 1px solid var(--line);
}
.doc-list li:hover { background: var(--bg-soft); }

.doc-list a { display: block; min-width: 0; }
.doc-list a:hover { text-decoration: none; }

.doc-title { display: block; font-weight: 550; color: var(--fg); font-size: 0.95rem; }
.doc-list a:hover .doc-title { color: var(--accent); }

.doc-sub {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--fg-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.doc-meta {
  margin-left: auto;
  flex: none;
  font-size: 0.75rem;
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.empty { color: var(--fg-muted); font-size: 0.9rem; margin-top: 1.5rem; }

/* ------------------------------------------------------------- Dokument */

.back { font-size: 0.82rem; color: var(--fg-muted); display: inline-block; margin-bottom: 0.9rem; }
.back:hover { color: var(--accent); }

.doc-head { margin-bottom: 1.5rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }

.doc-sub {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
  margin: 0;
  white-space: normal;
}

.toc {
  position: sticky;
  top: 72px;
  font-size: 0.8rem;
  border-left: 1px solid var(--line);
  padding-left: 1rem;
  max-height: calc(100vh - 90px);
  overflow-y: auto;
}

.toc-head {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--fg-muted);
  margin-bottom: 0.5rem;
}

.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li { margin: 0.28rem 0; line-height: 1.35; }
.toc li.lvl-3 { padding-left: 0.85rem; }
.toc a { color: var(--fg-muted); }
.toc a:hover { color: var(--accent); text-decoration: none; }

.markdown { max-width: 76ch; }

.markdown h1, .markdown h2, .markdown h3, .markdown h4 {
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 2rem 0 0.7rem;
  scroll-margin-top: 70px;
}

.markdown h1 { font-size: 1.7rem; margin-top: 0; }
.markdown h2 { font-size: 1.28rem; padding-bottom: 0.3rem; border-bottom: 1px solid var(--line); }
.markdown h3 { font-size: 1.08rem; }
.markdown h4 { font-size: 0.95rem; }

.markdown a.header-anchor { color: inherit; }
.markdown a.header-anchor:hover { text-decoration: none; }
.markdown a.header-anchor:hover::after { content: " ¶"; color: var(--fg-muted); font-weight: 400; }

.markdown p, .markdown ul, .markdown ol { margin: 0.75rem 0; }
.markdown ul, .markdown ol { padding-left: 1.4rem; }
.markdown li { margin: 0.25rem 0; }

.markdown strong { font-weight: 640; }

.markdown hr { border: none; border-top: 1px solid var(--line); margin: 2rem 0; }

.markdown blockquote {
  margin: 1rem 0;
  padding: 0.1rem 0 0.1rem 1rem;
  border-left: 3px solid var(--line-strong);
  color: var(--fg-muted);
}

.markdown code {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.08em 0.32em;
  font-size: 0.86em;
}

.markdown pre {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  line-height: 1.5;
  margin: 1rem 0;
}

.markdown pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.82rem;
}

.markdown table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.1rem 0;
  font-size: 0.88rem;
}

.markdown th, .markdown td {
  border: 1px solid var(--line);
  padding: 0.45rem 0.6rem;
  text-align: left;
  vertical-align: top;
}

.markdown th { background: var(--bg-soft); font-weight: 600; }

.markdown img { max-width: 100%; height: auto; border-radius: 6px; border: 1px solid var(--line); }

.markdown input[type="checkbox"] { margin-right: 0.35rem; }

/* Highlighting (hell) */
.hljs-comment, .hljs-quote { color: #6a737d; font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-literal { color: #b31d28; }
.hljs-string, .hljs-attr, .hljs-template-variable { color: #0a6b3d; }
.hljs-number, .hljs-symbol { color: #8a4b00; }
.hljs-title, .hljs-section, .hljs-built_in, .hljs-function { color: #0b4f9c; }
.hljs-variable, .hljs-params { color: #6f42c1; }
.hljs-meta { color: #6a737d; }

@media (prefers-color-scheme: dark) {
  .hljs-comment, .hljs-quote { color: #8b949e; }
  .hljs-keyword, .hljs-selector-tag, .hljs-literal { color: #ff7b72; }
  .hljs-string, .hljs-attr, .hljs-template-variable { color: #7ee787; }
  .hljs-number, .hljs-symbol { color: #ffa657; }
  .hljs-title, .hljs-section, .hljs-built_in, .hljs-function { color: #79c0ff; }
  .hljs-variable, .hljs-params { color: #d2a8ff; }
}

/* ------------------------------------------------------------------ Login */

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--bg-soft);
  padding: 1.5rem;
}

.login {
  width: min(360px, 100%);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.6rem;
  box-shadow: var(--shadow);
}

.login h1 { font-size: 1.15rem; margin: 0 0 0.4rem; }
.login p { color: var(--fg-muted); font-size: 0.85rem; margin: 0 0 1.1rem; }
.login label { display: block; font-size: 0.8rem; color: var(--fg-muted); margin-bottom: 0.35rem; }

.login input[type="password"] {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  font: inherit;
  background: var(--bg);
  color: var(--fg);
  margin-bottom: 0.9rem;
}
.login input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.login button {
  width: 100%;
  padding: 0.55rem 0.8rem;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.error { color: #c0392b; font-size: 0.85rem; }

/* ------------------------------------------------------------ Responsive */

@media (max-width: 1100px) {
  .content:has(> .toc) { display: block; }
  .toc { display: none; }
}

@media (max-width: 850px) {
  .layout { display: block; }
  .side {
    position: static;
    max-height: 42vh;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
  .content { padding: 1.5rem 1rem 3rem; }
  .doc-list li { flex-wrap: wrap; }
  .doc-meta { margin-left: 0; }
}

/* ------------------------------------------------------------------ Druck */

@media print {
  :root { --bg: #fff; --fg: #000; --fg-muted: #444; --line: #ccc; }
  .top, .side, .toc, .back, .filter, #empty { display: none !important; }
  .layout, .content { display: block !important; padding: 0 !important; }
  .markdown { max-width: none; }
  .markdown a { color: #000; text-decoration: underline; }
  .markdown pre, .markdown table, .markdown img { break-inside: avoid; }
  .markdown h2, .markdown h3 { break-after: avoid; }
  body { font-size: 11pt; }
}