/* webcarrier-bbs.de: normale Ansicht.
 * Mobile-First: Basisregeln für kleine Bildschirme, größere über min-width.
 * Die ANSI-Ansicht unter /ansi/ lädt zusätzlich ansi.css (gleicher Aufbau, andere Optik).
 */

@font-face { font-family: "IBM Plex Sans"; src: url("../fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("../fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("../fonts/ibm-plex-sans-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --line: #30363d;
  --line-soft: #21262d;
  --head: #f0f6fc;
  --text: #c9d1d9;
  --muted: #8b949e;
  --link: #58a6ff;
  --green: #238636;
  --green-hover: #2ea043;
  --sans: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", Consolas, "DejaVu Sans Mono", monospace;
  --gap: 24px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 16px; background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 var(--sans); }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; }
h1, h2, h3 { color: var(--head); line-height: 1.25; }
h1 { font-size: 2rem; font-weight: 700; margin: 0 0 16px; }
p { margin: 0 0 16px; }
b, strong { color: var(--head); font-weight: 600; }
.hint { color: #d29922; }
.win-title { display: none; }
code { font-family: var(--mono); font-size: 0.86em; background: var(--line-soft); padding: 0.12em 0.4em; }
pre {
  margin: 0 0 var(--gap);
  padding: 16px;
  font: 13.5px/1.55 var(--mono);
  color: var(--head);
  background: var(--surface);
  border: 1px solid var(--line);
  overflow-x: auto;
}
pre code { background: none; padding: 0; font-size: inherit; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--head); color: var(--bg); padding: 6px 12px; z-index: 10; }
.skip:focus { left: 8px; }

/* ------------------------------------------------------------ Knöpfe */
.btn {
  display: inline-block;
  padding: 9px 18px;
  font: 600 15px/1.4 var(--sans);
  color: var(--head);
  background: var(--line-soft);
  border: 1px solid var(--line);
  text-align: center;
}
.btn:hover { background: var(--line); text-decoration: none; }
.btn-primary { background: var(--green); border-color: var(--green); color: #ffffff; }
.btn-primary:hover { background: var(--green-hover); border-color: var(--green-hover); }
.btn-block { display: block; width: 100%; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 var(--gap); }

/* ------------------------------------------------------------ Kopf */
.hd { border-bottom: 1px solid var(--line); background: var(--bg); }
.hd-in {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 16px 10px;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas: "logo switch" "nav nav";
  align-items: center;
  gap: 10px 16px;
}
.logo { grid-area: logo; display: flex; align-items: center; gap: 8px; color: var(--head); font-weight: 700; font-size: 17px; }
.logo:hover { text-decoration: none; }
.logo img { display: block; image-rendering: pixelated; margin-right: 2px; }
.logo-bbs { color: var(--muted); font-weight: 600; }
.nav { grid-area: nav; display: flex; gap: 4px 20px; overflow-x: auto; }
.nav-item { flex: 0 0 auto; color: var(--text); font-size: 15px; padding: 4px 0; }
.nav-item:hover { color: var(--head); text-decoration: none; }
.nav-item[aria-current="page"] { color: var(--head); font-weight: 600; text-decoration: underline; text-underline-offset: 8px; text-decoration-thickness: 2px; }
.nav-item.is-off { color: #6e7681; cursor: not-allowed; }

/* ------------------------------------------------------------ Schalter ANSI-Modus */
.mode-switch { grid-area: switch; display: inline-flex; align-items: center; gap: 8px; padding: 4px 0; color: var(--text); font: 14px/1 var(--sans); }
.mode-switch:hover { color: var(--head); text-decoration: none; }
.mode-switch:hover .mode-knob { background: var(--head); }
.mode-track { position: relative; width: 38px; height: 22px; border-radius: 11px; background: var(--line-soft); border: 1px solid var(--line); }
.mode-knob { position: absolute; top: 3px; left: 3px; width: 14px; height: 14px; border-radius: 50%; background: var(--muted); transition: left 0.15s; }

/* ------------------------------------------------------------ Startseite: Text links, Kasten rechts */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
.home { padding-top: 36px; padding-bottom: 48px; }
.hero { display: grid; gap: var(--gap); padding-bottom: 36px; }
.intro > :last-child { margin-bottom: 0; }
.lead { font-size: 1.1rem; max-width: 64ch; }
.intro p { max-width: 64ch; }

.glance { background: var(--surface); border: 1px solid var(--line); padding: 20px; align-self: start; }
.glance-title { color: var(--muted); font-size: 14px; margin-bottom: 6px; }
.glance-version { color: var(--head); font-size: 1.5rem; font-weight: 700; line-height: 1.2; margin-bottom: 4px; }
.glance-meta { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.glance-btn { margin-bottom: 12px; }
.glance-more { font-size: 14px; text-align: center; margin-bottom: 0; }
.glance-facts { margin: 20px 0 0; font-size: 14px; }
.glance-facts dt { color: var(--muted); padding-top: 10px; border-top: 1px solid var(--line); }
.glance-facts dd { margin: 0 0 10px; color: var(--head); }
.glance-facts dd:last-child { margin-bottom: 0; }

.toc { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line-soft); }
.toc-title { color: var(--muted); font-size: 14px; margin-bottom: 8px; }
.toc ol { margin: 0; padding-left: 1.5em; font-size: 15px; }
.toc li { margin: 0 0 4px; break-inside: avoid; }
.toc li::marker { color: var(--muted); }

/* ------------------------------------------------------------ Inhaltsbereiche (Startseite, Doku, Unterseiten) */
.md { min-width: 0; }
.md h1 { margin-bottom: 20px; }
.md h2 { font-size: 1.45rem; font-weight: 700; margin: 0 0 18px; }
.md h3 { font-size: 1.12rem; font-weight: 600; margin: 24px 0 10px; }
.md ul, .md ol { padding-left: 1.5em; margin: 0 0 var(--gap); }
.md li { margin: 0 0 6px; }
.md li::marker { color: var(--muted); }
.md blockquote { margin: 0 0 var(--gap); padding: 0 1em; color: var(--muted); border-left: 3px solid var(--line); }
.md hr { height: 1px; border: 0; background: var(--line); margin: 28px 0; }
.md p, .md li, .md dd { max-width: 72ch; }
.sec { padding: 36px 0 12px; border-top: 1px solid var(--line-soft); }
.panel { margin: 0 0 var(--gap); }
.steps { margin-bottom: 0; }
.steps li { padding-left: 4px; margin-bottom: 10px; }
.steps li::marker { color: var(--link); font-weight: 700; }
.cols { display: grid; gap: 0 40px; }
.cols h3 { margin-top: 0; }
.notes { margin: 0 0 var(--gap); }
.notes dt { color: var(--head); font-weight: 600; margin-top: 16px; }
.notes dt:first-child { margin-top: 0; }
.notes dd { margin: 4px 0 0; }

/* ------------------------------------------------------------ Fragen */
.faq { margin-bottom: var(--gap); }
.faq details { border-top: 1px solid var(--line-soft); padding: 14px 0; }
.faq details:last-child { border-bottom: 1px solid var(--line-soft); }
.faq summary { cursor: pointer; color: var(--head); font-weight: 600; }
.faq details p { margin: 10px 0 0; }

/* ------------------------------------------------------------ Tabellen */
.tablewrap { overflow-x: auto; margin: 0 0 var(--gap); border: 1px solid var(--line); }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 9px 14px; vertical-align: top; }
th { color: var(--head); font-weight: 600; background: var(--surface); white-space: nowrap; }
td { border-top: 1px solid var(--line); }
tbody tr:first-child td, tbody tr:first-child th { border-top: 0; }
tbody th { border-top: 1px solid var(--line); }
.al-right { text-align: right; }
.al-center { text-align: center; }
.hash code { word-break: break-all; }
.verify { margin: 0 0 var(--gap); }
.verify summary { cursor: pointer; color: var(--link); }
.verify[open] summary { margin-bottom: 12px; }
.dl-panel .actions { margin-bottom: var(--gap); }

/* ------------------------------------------------------------ Unterseiten und Doku */
.page { max-width: 1200px; margin: 0 auto; padding: 36px 16px 56px; }
.narrow-page { max-width: 880px; }
.page h2 { margin-top: 36px; }
.doc-entry { padding: 24px 0; border-top: 1px solid var(--line-soft); }
.doc-entry h2 { margin: 0 0 4px; font-size: 1.3rem; }
.doc-entry .file { font: 13px/1.5 var(--mono); color: var(--muted); margin-bottom: 12px; }
.chapters { margin: 0; padding-left: 1.4em; font-size: 15px; }
.doc { display: block; }
.doc-side { margin-bottom: 28px; }
.doc-nav { background: var(--surface); border: 1px solid var(--line); padding: 14px 16px; }
.doc-nav summary { cursor: pointer; color: var(--head); font-weight: 600; }
.doc-list { list-style: none; padding: 0; margin: 12px 0; font-size: 15px; }
.doc-list li { margin: 0 0 4px; }
.doc-list a[aria-current="page"] { color: var(--head); font-weight: 600; }
.doc-toc { margin: 0; padding: 12px 0 0 1.5em; font-size: 14px; border-top: 1px solid var(--line); }
.doc-toc li { margin: 0 0 4px; }
.doc-body { max-width: 860px; }
.doc-body h2 { margin-top: 40px; }
.doc-src { margin-top: 40px; font-size: 14px; color: var(--muted); }
.legal h2 { font-size: 1.15rem; margin-top: 28px; }

/* ------------------------------------------------------------ Fuß */
.ft { border-top: 1px solid var(--line); }
.ft-in { max-width: 1200px; margin: 0 auto; padding: 24px 16px 40px; font-size: 14px; color: var(--muted); }
.ft-in p { margin: 0 0 8px; }
.ft-links { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.ft a { color: var(--muted); }
.ft a:hover { color: var(--link); }

/* ------------------------------------------------------------ ab Tablet */
@media (min-width: 720px) {
  body { font-size: 17px; }
  h1 { font-size: 2.5rem; }
  .hd-in, .wrap, .page, .ft-in { padding-left: 24px; padding-right: 24px; }
  .home { padding-top: 48px; }
  .hero { grid-template-columns: minmax(0, 1fr) 300px; gap: 48px; padding-bottom: 48px; }
  .toc ol { columns: 2; column-gap: 32px; }
  .cols { grid-template-columns: 1fr 1fr; }
  .chapters { columns: 2; column-gap: 32px; }
}

/* ------------------------------------------------------------ ab Desktop: Seitenleiste rechts */
@media (min-width: 1000px) {
  h1 { font-size: 2.8rem; }
  .hd-in { grid-template-columns: auto 1fr auto; grid-template-areas: "logo nav switch"; padding-top: 16px; padding-bottom: 16px; gap: 0 32px; }
  .nav { justify-self: end; gap: 26px; }
  .hero { grid-template-columns: minmax(0, 1fr) 340px; gap: 64px; }
  .doc { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 48px; }
  .doc-side { position: sticky; top: 16px; align-self: start; max-height: calc(100vh - 32px); overflow-y: auto; margin-bottom: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .mode-knob { transition: none; }
}