:root {
  color-scheme: light dark;

  /* --- 1. VARIABLEN --- */
  --font-family:
    'Inter', -apple-system, BlinkMacSystemFont, Roboto, Ubuntu, 'Segoe UI', 'Helvetica Neue', Arial,
    sans-serif;
  --font-family-mono: 'Orbitron', monospace;

  --font-size: 1rem;
  --font-size-small: 0.8rem;
  --font-size-large: 1.2rem;

  /* Farben */
  --font-color: light-dark(hsla(0 0% 0% / 0.9), hsla(0 0% 100% / 0.9));
  --font-color-muted: light-dark(hsla(0 0% 0% / 0.6), hsla(0 0% 100% / 0.6));
  --font-color-code: light-dark(hsla(0 0% 0% / 0.9), hsla(0 0% 100% / 0.9));

  /* NEU: Hatte gefehlt, wird aber in Table genutzt */
  --font-color-header: var(--primary-color);

  /* Backgrounds */
  --bg-body: light-dark(#f8f9fa, #0d1117);
  --bg-panel: light-dark(#ffffff, #161b22);
  --bg-code: light-dark(#d9dcde, #161b22);
  --bg-table-odd: light-dark(#ffffff, #161b22);
  --bg-table-even: light-dark(#f2f2f2, #0d1117);

  --border-color: light-dark(#e1e4e8, #30363d);

  /* Primary Colors */
  --primary-color: light-dark(oklch(0.55 0.15 240), oklch(0.7 0.12 240));

  --secondary-color: light-dark(oklch(0.8059 0.057 236.25), oklch(0.4956 0.0757 237.94));

  --border-radius: 8px;
  --border-width: 1px;
  --border-style: solid;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --universal-padding: 1rem;
}

*,
*:before,
*:after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

@starting-style {
  html {
    font-display: swap;
  }
  body {
    background-color: var(--bg-body);
  }
}

@view-transition {
  navigation: auto;
}

/* --- GRUNDLAYOUT --- */
html {
  height: 100%;
  font-family: var(--font-family);
  font-size: 16px;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  background-color: var(--bg-body);
  color: var(--font-color);
  transition:
    background-color 0.3s,
    color 0.3s;
}

body {
  min-height: 100dvh;
  margin: 0;
  display: grid;
  grid-template-areas: 'header' 'aside' 'main' 'footer';
  grid-template-rows: 70px auto 1fr auto;
}

/* --- LINKS --- */
a:link,
a:active,
a:visited {
  color: var(--font-color);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--primary-color);
}

/* --- HEADER & FOOTER --- */
header,
footer {
  display: flex;
  align-items: center;
  padding: 0 20px;
  background-color: var(--bg-panel);
  border-bottom: 1px solid var(--border-color);
  z-index: 10;
}

header {
  grid-area: header;
  box-shadow: var(--shadow-sm);
}

footer {
  grid-area: footer;
  height: 50px;
  border-top: 1px solid var(--border-color);
  border-bottom: none;
  font-size: var(--font-size-small);
  color: var(--font-color-muted);
}

.header_left {
  cursor: pointer;
}
.header_left img {
  width: 45px;
  height: auto;
  vertical-align: middle;
}

.header_left,
.footer-section_left {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.header_middle,
.footer-section_center {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.header_right,
.footer-section_right {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

header h1 {
  font-family: var(--font-family-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-left: 12px;
  text-wrap: pretty;
}

/* --- BUTTONS --- */
.tron-btn {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--font-color);
  padding: 6px 14px;
  border-radius: var(--border-radius);
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tron-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background-color: light-dark(rgba(0, 0, 0, 0.03), rgba(255, 255, 255, 0.05));
}

.tron-btn.icon-only {
  padding: 0;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 10px;
}

/* Anpassung für SVG im Button */
.tron-btn.icon-only svg {
  width: 18px;
  height: 18px;
  stroke: var(--font-color); /* Nutzt deine CSS Variable */
  transition: stroke 0.2s ease;
}

.tron-btn.icon-only:hover svg {
  stroke: var(--primary-color);
}

/* --- SIDEBAR NAV --- */
aside {
  grid-area: aside;
  padding: 20px;
  background-color: var(--bg-body);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  overflow-y: auto;
}

.nav-list,
.nav-list ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}

.nav-list {
  gap: 12px;
}

.nav-list > li > strong {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
  color: var(--font-color-muted);
  margin-bottom: 8px;
  padding-left: 5px;
}

.nav-list ul {
  gap: 2px;
  margin-left: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--border-color);
}

.nav-list a {
  display: block;
  padding: 6px 10px;
  font-size: 0.9rem;
  border-radius: 6px;
  color: var(--font-color);
}

.nav-list a:hover {
  background-color: light-dark(rgba(0, 0, 0, 0.05), rgba(255, 255, 255, 0.1));
  color: var(--primary-color);
}

.nav-list a.active {
  background-color: light-dark(#eef2ff, #1c212f);
  color: var(--primary-color);
  font-weight: 600;
}

.nav-list ul strong {
  display: block;
  font-size: 0.75rem;
  color: var(--font-color-muted);
  margin-top: 8px;
  margin-bottom: 4px;
  padding-left: 8px;
  font-weight: 600;
}

/* --- MAIN CONTENT --- */
main {
  grid-area: main;
  margin: 20px;
  padding: 30px;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  min-height: 400px;
}

main h1 {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
}

main h1,
h2,
h3,
h4 {
  margin-bottom: 1rem;
  color: var(--primary-color);
}

main h2,
h3,
h4 {
  margin-top: 1.5rem;
}

main p {
  line-height: 1.6;
  color: var(--font-color);
  margin-bottom: 1rem;
  font-weight: normal;
}

main a::before {
  content: '» ';
}

main .ul-sub > li {
  margin-left: 12px;
}

main strong {
  /* font-weight: 700; */
  color: var(--primary-color);
}

/* --- CODE BLOCKS --- */
code,
kbd,
pre,
samp {
  font-family: Menlo, Consolas, monospace;
}

code {
  background: var(--bg-code);
  color: var(--font-color-code);
  text-wrap: pretty;
  padding: 2px 4px;
  width: fit-content;
  max-width: 100%;
  display: inline-block;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

/* --- CARD GRID (IMAGE ZOOM LOGIC) --- */

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.card-wrapper {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(35ch, 1fr));
  gap: 1.5rem;
}

/* Card Container */
.card {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  padding-bottom: 1rem;
  position: relative;

  /* NEU: Wichtig für sauberes "Rauszoomen" ohne Clipping */
  /* Wir verzögern das Zurücksetzen des z-index um 0.4s (Dauer der Animation) */
  transition:
    box-shadow 0.2s ease,
    transform 0.2s ease,
    z-index 0s 0.4s;
}

/* Wenn eines der Bilder gehovert wird, heben wir die ganze Karte an */
.card:has(img:hover) {
  z-index: 1001;
  transition: z-index 0s 0s; /* Sofort nach oben */
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.card h3 {
  margin: 1rem;
  font-size: 1.15rem;
  color: var(--primary-color);
  font-weight: 600;
}

.card p,
.card ul {
  margin: 0 1rem 1rem 1rem;
  color: var(--font-color);
  font-size: 0.9rem;
  line-height: 1.5;
}

.card ul {
  padding-left: 1.2rem;
}

/* Image Styling & Zoom Logic */
.card img {
  width: 100%;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  border-bottom: 1px solid var(--border-color);

  transform-origin: center top;
  position: relative;
  z-index: 1;
  background-color: var(--bg-panel);

  /* Animation */
  transition:
    transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
    box-shadow 0.4s ease,
    border-radius 0.4s ease;
}

/* Hover zoom effects */
.card img:hover {
  transform: scale(2.2);
  z-index: 1002;
  cursor: zoom-out;
  border-radius: var(--border-radius);
  border: 1px solid var(--primary-color);

  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.5),
    0 0 0 100vmax light-dark(rgba(248, 249, 250, 0.85), rgba(13, 17, 23, 0.85));
}

/* --- TABLE (Optimiert für Dark Mode) --- */
table {
  width: 100%;
  border-collapse: collapse;
  border: var(--border-width) var(--border-style) var(--border-color);
  margin-top: 1rem;
}

/* Dark Mode freundliche Hintergründe */
tr:nth-child(even) {
  background-color: var(--bg-table-even);
}

tr:nth-child(odd) {
  background-color: var(--bg-table-odd);
}

th,
td {
  border: var(--border-width) var(--border-style) var(--border-color);
  padding: 8px;
  text-align: left;
}

th {
  color: var(--font-color-header);
  background-color: var(--bg-panel); /* Header hebt sich leicht ab */
  font-weight: 600;
}

td {
  color: var(--font-color);
}

td a:link,
td a:active,
td a:visited {
  color: var(--font-color);
  font-style: italic;
  text-decoration: underline;
  text-decoration-color: var(--border-color);
}
td a:hover {
  color: var(--primary-color);
  text-decoration-color: var(--primary-color);
}

/* --- dark mode toggle --- */
/* --- THEME TOGGLE SWITCH --- */
.theme-switch {
  display: inline-block;
  height: 28px;
  position: relative;
  width: 54px;
  margin-left: 15px; /* Abstand zu anderen Header-Elementen */
}

.theme-switch input {
  display: none; /* Checkbox verstecken */
}

.slider {
  background-color: var(--border-color); /* Inaktiv: Grau/Border-Farbe */
  bottom: 0;
  cursor: pointer;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
  transition: 0.4s;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px;
}

.slider.round {
  border-radius: 34px;
  border: 1px solid var(--border-color);
}

/* Der runde "Knopf" */
.slider:before {
  background-color: #fff;
  bottom: 3px; /* Etwas Abstand zum Rand */
  content: '';
  height: 20px;
  left: 4px;
  position: absolute;
  transition: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  width: 20px;
  border-radius: 50%;
  z-index: 2;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Wenn Checkbox aktiv (Dark Mode) */
input:checked + .slider {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

input:checked + .slider:before {
  transform: translateX(24px); /* Schiebt den Knopf nach rechts */
}

/* Icons Styling */
.slider .icon-sun,
.slider .icon-moon {
  color: var(--font-color);
  z-index: 1;
  transition: opacity 0.3s;
  width: 14px;
  height: 14px;
}

/* Icons Farbe anpassen, wenn aktiv */
input:checked + .slider .icon-sun {
  opacity: 0.5;
  color: rgba(255, 255, 255, 0.8);
}
input:checked + .slider .icon-moon {
  opacity: 1;
  color: white;
}

/* --- TABLE OF CONTENTS (TOC) --- */
/* Wird automatisch vom SSG generiert */

/* 1. Container-Look für die Hauptliste */
ul.toc-level-2 {
  background-color: light-dark(rgba(0, 0, 0, 0.02), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary-color); /* Akzent-Linie links */
  border-radius: var(--border-radius);
  padding: 1rem 1.5rem 1rem 1rem;
  margin: 0.5rem 0 2rem 0;
  display: inline-block; /* Nimmt nur so viel Platz wie nötig (optional 'block' für volle Breite) */
  min-width: 300px;
  max-width: 100%;
  box-shadow: var(--shadow-sm);
}

/* 2. Reset für alle Listen-Ebenen */
ul[class^='toc-level-'] {
  list-style: none; /* Keine Standard-Bullets */
}

/* 3. Abstände der Listeneinträge */
ul[class^='toc-level-'] li {
  margin-bottom: 0.4rem;
  line-height: 1.4;
}

/* 4. Einrückung und Guides für Unterebenen (h3, h4) */
.toc-level-3,
.toc-level-4 {
  margin-top: 0.4rem;
  margin-left: 1.2rem;
  padding-left: 0.8rem;
  border-left: 1px solid var(--border-color); /* Feine vertikale Linie zur Orientierung */
}

.toc-level-4 {
  font-size: 0.9em; /* Level 4 etwas kleiner */
}

/* 5. Link-Styling */
ul[class^='toc-level-'] a {
  color: var(--font-color);
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  transition: all 0.2s ease;
  opacity: 0.9;
}

ul[class^='toc-level-'] a:hover {
  color: var(--primary-color);
  opacity: 1;
  transform: translateX(4px); /* Kleiner Slide-Effekt nach rechts */
  text-decoration: none;
}

/* 6. Anpassung des globalen '» ' Präfixes */
/* Da main a::before global definiert ist, passen wir es hier farblich an */
ul[class^='toc-level-'] a::before {
  color: var(--secondary-color); /* Sekundärfarbe für den Pfeil */
  opacity: 0.7;
  font-weight: normal;
}

/* --- RESPONSIVE / DESKTOP --- */
@media screen and (min-width: 1024px) {
  body {
    grid-template-columns: 260px 1fr;
    grid-template-rows: 70px 1fr auto;
    grid-template-areas:
      'header header'
      'aside main'
      'footer footer';
    max-width: 1600px;
    margin: auto;
  }

  aside {
    border-bottom: none;
    background-color: var(--bg-panel);
  }

  main {
    border: none;
    box-shadow: none;
    background-color: transparent;
    padding: 0 40px;
  }
}