/* ══════════════════════════════════════════════════════════════════════════
   Nachschlagewerk — Material-Gestaltung
   Farbrollen nach Material 3, dunkel als Standard, hell nach Systemvorgabe.
   ══════════════════════════════════════════════════════════════════════════ */

:root {
  color-scheme: dark light;

  /* Flächen */
  --surface:            #101418;
  --surface-container:  #171c22;
  --surface-high:       #1e242b;
  --surface-highest:    #262d35;
  --outline:            #2c343d;
  --outline-variant:    #3a434d;

  /* Schrift */
  --on-surface:         #e3e6e9;
  --on-surface-variant: #bcc4cd;
  --on-surface-muted:   #8d97a3;

  /* Primärfarbe */
  --primary:            #82cfff;
  --primary-container:  #14384f;
  --on-primary-container:#c9e7ff;

  /* Zustände */
  --state-hover:        rgba(130, 207, 255, .08);
  --state-active:       rgba(130, 207, 255, .14);

  --sans: Roboto, system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: "Roboto Mono", ui-monospace, "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;

  --sidebar-w: 20rem;
  --radius-s: 8px;
  --radius-m: 12px;
  --radius-l: 16px;
  --elev-1: 0 1px 2px rgba(0,0,0,.3), 0 1px 3px 1px rgba(0,0,0,.15);
  --elev-2: 0 1px 2px rgba(0,0,0,.3), 0 2px 6px 2px rgba(0,0,0,.15);
}

@media (prefers-color-scheme: light) {
  :root {
    --surface:            #fcfcff;
    --surface-container:  #f0f2f6;
    --surface-high:       #eaeef3;
    --surface-highest:    #e3e8ee;
    --outline:            #d6dbe1;
    --outline-variant:    #c2c8cf;

    --on-surface:         #1a1c1e;
    --on-surface-variant: #43474e;
    --on-surface-muted:   #73777f;

    --primary:            #00629d;
    --primary-container:  #cfe5ff;
    --on-primary-container:#001d33;

    --state-hover:        rgba(0, 98, 157, .08);
    --state-active:       rgba(0, 98, 157, .12);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

/* ══ Layout ══════════════════════════════════════════════════════════════ */

.sidebar {
  width: var(--sidebar-w);
  position: fixed;
  top: 0; bottom: 0; left: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 1.25rem 0 2rem;
  background: var(--surface-container);
  border-right: 1px solid var(--outline);
  z-index: 20;
}
.sidebar::-webkit-scrollbar { width: 8px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--outline-variant); border-radius: 4px; }

.content {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  left: var(--sidebar-w);
  padding-top: 0;
  transition: left .25s cubic-bezier(.2,0,0,1);
}

.markdown-section {
  max-width: 51rem;
  margin: 0 auto;
  padding: 3rem 3rem 6rem;
  position: relative;
}

/* ══ Navigationsleiste (Material Navigation Drawer) ══════════════════════ */

.sidebar > h1 {
  margin: 0 1rem 1rem;
  padding: 0 0.75rem 1rem;
  border-bottom: 1px solid var(--outline);
  font-size: 1.3rem;
  font-weight: 500;
  letter-spacing: 0;
}
.sidebar > h1 a { color: var(--on-surface); }
.sidebar > h1 a::before { content: "▚"; color: var(--primary); margin-right: .5rem; }

.sidebar .search {
  margin: 0 1rem 1rem;
  padding: 0;
  border: 0;
}
.sidebar .search input {
  width: 100%;
  height: 2.75rem;
  padding: 0 1rem;
  border: 1px solid var(--outline-variant);
  border-radius: 28px;                       /* Material-Suchleiste */
  background: var(--surface-high);
  color: var(--on-surface);
  font-family: var(--sans);
  font-size: 0.9rem;
  transition: border-color .15s, background .15s;
}
.sidebar .search input::placeholder { color: var(--on-surface-muted); }
.sidebar .search input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--surface-highest);
}
.sidebar .search .clear-button { display: none; }
.sidebar .search h2 {
  margin: 1rem 1rem .3rem;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--on-surface-muted);
}
.sidebar .search .matching-post { border-bottom: 1px solid var(--outline); padding: .6rem 1rem; }
.sidebar .search .matching-post p { font-size: .82rem; color: var(--on-surface-variant); }
.sidebar .search .search-keyword {
  color: var(--primary); background: var(--primary-container);
  font-style: normal; font-weight: 600; padding: 0 .15em; border-radius: 3px;
}

.sidebar-nav { padding: 0 .75rem; }
.sidebar ul { margin: 0; padding: 0; list-style: none; }
.sidebar li { margin: 2px 0; }

/* Gruppentitel */
.sidebar-nav > ul > li > p,
.sidebar-nav > ul > li > strong,
.sidebar-nav > ul > li > p > strong {
  display: block;
  margin: 1.3rem .75rem .35rem;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--on-surface-muted);
}

/* Einträge: Material-Pillen, Text bricht um statt abzuschneiden */
.sidebar ul li a {
  display: block;
  padding: .55rem .9rem;
  border-radius: 24px;
  color: var(--on-surface-variant);
  font-size: .875rem;
  font-weight: 500;
  line-height: 1.4;
  white-space: normal;
  overflow-wrap: anywhere;
  transition: background .15s, color .15s;
}
.sidebar ul li a:hover { background: var(--state-hover); color: var(--on-surface); text-decoration: none; }
.sidebar ul li.active > a,
.sidebar ul li > a.active {
  background: var(--primary-container);
  color: var(--on-primary-container);
  font-weight: 600;
}
.sidebar ul ul { margin: 2px 0 2px .5rem; padding-left: .5rem; border-left: 1px solid var(--outline); }
.sidebar ul ul li a { font-size: .84rem; padding: .4rem .8rem; color: var(--on-surface-muted); }

/* Umschalter für schmale Fenster */
.sidebar-toggle {
  position: fixed;
  top: .85rem; left: .85rem; bottom: auto;
  width: auto; padding: .6rem .65rem;
  background: var(--surface-high);
  border: 1px solid var(--outline);
  border-radius: 50%;
  box-shadow: var(--elev-1);
  z-index: 30;
}
.sidebar-toggle span { background: var(--primary); height: 2px; }
@media (min-width: 62.01rem) { .sidebar-toggle { display: none; } }

/* ══ Typografie (Material Type Scale) ════════════════════════════════════ */

.markdown-section h1 {
  margin: 0 0 1.25rem;
  font-size: 2.1rem;
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--on-surface);
}
.markdown-section h2 {
  margin: 2.75rem 0 1rem;
  padding-bottom: .55rem;
  border-bottom: 1px solid var(--outline);
  font-size: 1.4rem;
  line-height: 1.3;
  font-weight: 500;
  color: var(--on-surface);
}
.markdown-section h3 {
  margin: 2rem 0 .7rem;
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--on-surface);
}
.markdown-section h4 {
  margin: 1.6rem 0 .5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--on-surface);
}
.markdown-section h5,
.markdown-section h6 {
  margin: 1.3rem 0 .4rem;
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

.markdown-section p,
.markdown-section li { color: var(--on-surface-variant); }
.markdown-section strong { color: var(--on-surface); font-weight: 600; }
.markdown-section em { color: var(--on-surface-variant); }

.markdown-section ul, .markdown-section ol { padding-left: 1.4rem; }
.markdown-section li { margin: .3rem 0; }
.markdown-section li::marker { color: var(--on-surface-muted); }

/* ══ Bausteine ═══════════════════════════════════════════════════════════ */

/* Hinweisblöcke */
.markdown-section blockquote {
  margin: 1.4rem 0;
  padding: 1rem 1.15rem;
  border: 0;
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
  background: var(--surface-container);
  color: var(--on-surface-variant);
  font-style: normal;
}
.markdown-section blockquote p { margin: 0; color: inherit; }
.markdown-section blockquote p + p { margin-top: .6rem; }

/* Code */
.markdown-section code {
  font-family: var(--mono);
  font-size: .855em;
  padding: .15em .4em;
  border-radius: 4px;
  background: var(--surface-high);
  border: 1px solid var(--outline);
  color: var(--primary);
}
.markdown-section pre {
  margin: 1.3rem 0;
  padding: 0;
  background: var(--surface-container);
  border: 1px solid var(--outline);
  border-radius: var(--radius-m);
  box-shadow: var(--elev-1);
  overflow: hidden;
}
.markdown-section pre > code {
  display: block;
  padding: 1.05rem 1.2rem;
  background: transparent;
  border: 0;
  color: var(--on-surface);
  font-size: .85rem;
  line-height: 1.65;
  overflow-x: auto;
}
.markdown-section pre::after { display: none; }

.docsify-copy-code-button {
  top: .5rem !important; right: .5rem !important;
  background: var(--surface-highest) !important;
  color: var(--on-surface-variant) !important;
  border: 1px solid var(--outline-variant) !important;
  border-radius: 20px !important;
  font-family: var(--sans) !important;
  font-size: .7rem !important;
  font-weight: 500 !important;
  padding: .3rem .8rem !important;
  opacity: 0;
  transition: opacity .15s, background .15s, color .15s;
}
pre:hover .docsify-copy-code-button { opacity: 1; }
.docsify-copy-code-button:hover { background: var(--primary-container) !important; color: var(--on-primary-container) !important; }

/* Tabellen */
.markdown-section table {
  display: table;
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 1.4rem 0;
  font-size: .9rem;
  border: 1px solid var(--outline);
  border-radius: var(--radius-m);
  overflow: hidden;
}
.markdown-section th {
  background: var(--surface-high);
  color: var(--on-surface);
  font-weight: 600;
  text-align: left;
  padding: .7rem .9rem;
  border-bottom: 1px solid var(--outline);
}
.markdown-section td {
  padding: .65rem .9rem;
  border-bottom: 1px solid var(--outline);
  color: var(--on-surface-variant);
}
.markdown-section tr:last-child td { border-bottom: 0; }
.markdown-section tbody tr:hover { background: var(--state-hover); }
.markdown-section table tr:nth-child(2n) { background: transparent; }

.markdown-section hr { border: 0; border-top: 1px solid var(--outline); margin: 2.5rem 0; }

.markdown-section img { max-width: 100%; border-radius: var(--radius-m); }

/* Seitenwechsel unten */
.docsify-pagination-container {
  border-top: 1px solid var(--outline);
  margin-top: 3.5rem;
  padding-top: 1.5rem;
}
.pagination-item-label { color: var(--on-surface-muted); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.pagination-item-title { color: var(--on-surface-variant) !important; font-weight: 500; }
.pagination-item:hover .pagination-item-title { color: var(--primary) !important; }

/* ══ Startseite ══════════════════════════════════════════════════════════ */

.hero { margin-bottom: 2.5rem; }
.markdown-section .hero h1 { margin: 0 0 .7rem; font-size: 2.6rem; font-weight: 400; letter-spacing: -0.02em; }
.hero-sub { margin: 0; max-width: 42ch; font-size: 1.08rem; line-height: 1.6; color: var(--on-surface-variant); }

.startcards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin: 0 0 3rem;
}
.startcard {
  display: block;
  padding: 1.35rem 1.4rem;
  border: 1px solid var(--outline);
  border-radius: var(--radius-l);
  background: var(--surface-container);
  text-decoration: none !important;
  transition: background .18s, border-color .18s, box-shadow .18s, transform .18s;
}
.startcard:hover {
  background: var(--surface-high);
  border-color: var(--outline-variant);
  box-shadow: var(--elev-2);
  transform: translateY(-2px);
}
.sc-kicker {
  display: block;
  font-size: .68rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  color: var(--primary); margin-bottom: .55rem;
}
.sc-title { display: block; font-size: 1.05rem; font-weight: 500; color: var(--on-surface); margin-bottom: .45rem; }
.sc-text { display: block; font-size: .89rem; line-height: 1.55; color: var(--on-surface-variant); }

/* ══ Syntaxhervorhebung ══════════════════════════════════════════════════ */

.token.comment, .token.prolog, .token.doctype, .token.cdata { color: var(--on-surface-muted); font-style: italic; }
.token.punctuation { color: var(--on-surface-variant); }
.token.property, .token.tag, .token.constant, .token.symbol { color: #9fd0ff; }
.token.boolean, .token.number { color: #f0b3ff; }
.token.selector, .token.string, .token.char, .token.builtin, .token.inserted { color: #9ce0a8; }
.token.operator, .token.entity, .token.url, .token.variable { color: var(--on-surface); }
.token.atrule, .token.attr-value, .token.function, .token.class-name { color: #ffd479; }
.token.keyword { color: #82cfff; }
.token.important, .token.bold { font-weight: 700; }

/* ══ Schmale Fenster ═════════════════════════════════════════════════════ */

@media (max-width: 62rem) {
  .content { left: 0; }
  .sidebar { transform: translateX(-100%); box-shadow: var(--elev-2); }
  body.close .sidebar { transform: translateX(0); }
  body.close .content { left: var(--sidebar-w); }
  .markdown-section { padding: 4rem 1.35rem 4rem; max-width: none; }
  .markdown-section h1 { font-size: 1.75rem; }
  .markdown-section h2 { font-size: 1.25rem; }
  .markdown-section .hero h1 { font-size: 2rem; }
}