:root {
  color-scheme: light;
  --paper: #edefea;
  --surface: #f7f8f4;
  --ink: #1b221f;
  --ink-soft: #5c655d;
  --line: #d5d9ce;
  --accent: #0b6e63;
  --focus: #0b6e63;
  --hover: #e4e7df;
  --shadow: 0 10px 28px rgba(27, 34, 31, 0.14);
  --radius: 14px;
  --ease: cubic-bezier(0.2, 0.7, 0, 1);
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #121614;
    --surface: #1a201d;
    --ink: #e8ece7;
    --ink-soft: #9aa59d;
    --line: #2c3530;
    --accent: #3fb8a8;
    --focus: #3fb8a8;
    --hover: #1f2622;
    --shadow: 0 10px 28px rgba(0, 0, 0, 0.5);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #121614;
  --surface: #1a201d;
  --ink: #e8ece7;
  --ink-soft: #9aa59d;
  --line: #2c3530;
  --accent: #3fb8a8;
  --focus: #3fb8a8;
  --hover: #1f2622;
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.5);
}

/* ======================================================= Seitenübergänge */

/* Navigation zwischen Rahmenseiten: Browser blendet über, Kachelbilder wachsen
   in das Kopfbild der Zielseite (Chrome/Edge 126+, Safari 18.2+; sonst normaler Wechsel). */
@view-transition { navigation: auto; }

::view-transition-group(*) { animation-duration: 0.42s; animation-timing-function: var(--ease); }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: 0.28s; }

/* Farbschema-Wechsel: der Kreis kommt per Skript, hier nur die Standardblende abschalten */
.vt-theme::view-transition-old(root),
.vt-theme::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
.vt-theme::view-transition-group(*) { animation: none; }

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.55 var(--sans);
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.shell {
  max-width: 46rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.shell.wide { max-width: 68rem; }

a { color: var(--accent); }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.sr {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ----------------------------------------------------- Farbschema-Schalter */

.themebar {
  position: fixed;
  top: max(0.6rem, env(safe-area-inset-top));
  right: max(0.75rem, env(safe-area-inset-right));
  z-index: 50;
  view-transition-name: pc-themebar;
}

.theme-toggle {
  font: inherit;
  font-size: 0.8rem;
  min-height: 36px;
  padding: 0.25rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-soft);
  cursor: pointer;
}

.theme-toggle:hover { color: var(--ink); border-color: var(--accent); }

/* ------------------------------------------------------------------ Kopf */

.masthead { margin-bottom: 2rem; padding-right: 6rem; }

.masthead h1 {
  margin: 0;
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.lede {
  margin: 0.35rem 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.crumbs {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
  font-family: var(--mono);
  padding-right: 7rem;
}

.crumbs a { color: var(--ink-soft); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { padding: 0 0.4em; color: var(--line); }
.crumbs .here { color: var(--ink); }

h1 { font-weight: 600; letter-spacing: -0.015em; }

/* Unterübersicht: Kopfbild + Titel */
.pagehead {
  display: grid;
  grid-template-columns: minmax(0, 16rem) 1fr;
  align-items: end;
  gap: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}

.banner {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: var(--radius);
  background: linear-gradient(135deg, hsl(var(--h), 50%, 42%), hsl(calc(var(--h) + 40), 55%, 28%));
}

.banner img { width: 100%; height: 100%; object-fit: cover; display: block; }
.banner .tile-ph { font-size: 4rem; }

.pagehead h1 { margin: 0; font-size: clamp(2rem, 7vw, 3rem); letter-spacing: -0.02em; line-height: 1.1; }
.pagehead .lede { font-size: 1rem; max-width: 40ch; }

@media (max-width: 34rem) {
  .pagehead { grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------- Filter */

.filter { margin: 0 0 1.25rem; }

.filter input {
  font: inherit;
  font-size: 0.95rem;
  width: 100%;
  max-width: 22rem;
  min-height: 44px;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
}

.filter input:focus { outline: none; border-color: var(--accent); }
.filter-empty { color: var(--ink-soft); }

/* ---------------------------------------------------------------- Kacheln */

.tiles {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15rem), 1fr));
  gap: 1.1rem;
}

.filter + .tiles { margin-top: 0; }

.tiles li { min-width: 0; }
.tiles li[hidden] { display: none; }

.tile {
  --glow: transparent;
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.25s ease, border-color 0.18s ease;
}

.tile:hover,
.tile:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow), 0 14px 40px -12px color-mix(in srgb, var(--glow) 70%, transparent);
  border-color: var(--accent);
}

.tile:active { transform: translateY(-1px) scale(0.99); }

.tile-media {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: linear-gradient(135deg, hsl(var(--h), 50%, 42%), hsl(calc(var(--h) + 40), 55%, 28%));
}

.tile-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.tile:hover .tile-media img { transform: scale(1.05); }

.tile-ph {
  font-size: 3.2rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: -0.02em;
}

.tile-body {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.85rem 1rem 1rem;
}

.tile-title { font-weight: 600; font-size: 1.05rem; line-height: 1.3; }

.tile-blurb { color: var(--ink-soft); font-size: 0.88rem; line-height: 1.4; }

.tile-meta { display: flex; flex-wrap: wrap; gap: 0.25rem 0.6rem; align-items: baseline; }

.tile code {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
  overflow-wrap: anywhere;
}

.tile .kids { font-size: 0.75rem; color: var(--accent); }

.flag {
  position: absolute;
  top: 0.55rem;
  left: 0.55rem;
  z-index: 1;
  font-size: 0.7rem;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.content { margin: 0 0 2rem; }
.content img, .content video { max-width: 100%; height: auto; }
.content pre { overflow: auto; }

.empty { color: var(--ink-soft); }

.foot {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
}

.foot a { color: var(--ink-soft); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .tile:hover, .tile:focus-visible { transform: none; }
  @view-transition { navigation: none; }
}

/* ===================================================================
   Effektschicht: Glas, Farblicht, 3D, Palette, Röntgenblick
   =================================================================== */

:root {
  --glass: rgba(247, 248, 244, 0.58);
  --glass-strong: rgba(247, 248, 244, 0.8);
  --glass-edge: rgba(255, 255, 255, 0.75);
  --glass-shine: rgba(255, 255, 255, 0.85);
  --glass-shadow: 0 1px 2px rgba(27, 34, 31, 0.06), 0 12px 32px -14px rgba(27, 34, 31, 0.28);
  --aurora-alpha: 0.7;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --glass: rgba(26, 32, 29, 0.5);
    --glass-strong: rgba(26, 32, 29, 0.78);
    --glass-edge: rgba(255, 255, 255, 0.1);
    --glass-shine: rgba(255, 255, 255, 0.16);
    --glass-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 16px 40px -16px rgba(0, 0, 0, 0.7);
    --aurora-alpha: 0.5;
  }
}

:root[data-theme="dark"] {
  --glass: rgba(26, 32, 29, 0.5);
  --glass-strong: rgba(26, 32, 29, 0.78);
  --glass-edge: rgba(255, 255, 255, 0.1);
  --glass-shine: rgba(255, 255, 255, 0.16);
  --glass-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 16px 40px -16px rgba(0, 0, 0, 0.7);
  --aurora-alpha: 0.5;
}

/* ---------------------------------------------------------- Farblicht */

.aurora {
  --a1: #0b6e63;
  --a2: #6fb3a6;
  --a3: #c9d36a;
  position: fixed;
  inset: -20vmax;
  z-index: -1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.2s ease;
  filter: blur(80px) saturate(1.2);
}

.aurora.ready { opacity: var(--aurora-alpha); }

.aurora i {
  position: absolute;
  width: 62vmax;
  height: 62vmax;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, var(--c) 0%, transparent 62%);
  animation: drift 26s ease-in-out infinite alternate;
}

.aurora i:nth-child(1) { --c: var(--a1); left: 0; top: 0; }
.aurora i:nth-child(2) { --c: var(--a2); right: 0; top: 18%; animation-duration: 32s; animation-delay: -8s; }
.aurora i:nth-child(3) { --c: var(--a3); left: 26%; bottom: 0; animation-duration: 38s; animation-delay: -16s; }

@keyframes drift {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(9vmax, 6vmax) scale(1.15); }
  100% { transform: translate(-6vmax, 10vmax) scale(0.92); }
}

/* --------------------------------------------------------------- Glas */

.glassy, .theme-toggle, .palette-open, .fx .filter input {
  background: var(--glass);
  -webkit-backdrop-filter: blur(18px) saturate(170%);
  backdrop-filter: blur(18px) saturate(170%);
  border-color: var(--glass-edge);
  box-shadow: inset 0 1px 0 var(--glass-shine), var(--glass-shadow);
}

.themebar { display: flex; gap: 0.4rem; }

.palette-open {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 36px;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--glass-edge);
  border-radius: 999px;
  color: var(--ink-soft);
  font: inherit;
  font-size: 0.78rem;
  cursor: pointer;
}

.palette-open:hover { color: var(--ink); border-color: var(--accent); }
.palette-open svg { width: 1rem; height: 1rem; }

kbd {
  font: 500 0.72rem/1 var(--mono);
  padding: 0.18rem 0.38rem;
  border-radius: 5px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  background: var(--surface);
  color: var(--ink-soft);
}

.palette-open kbd { border: 0; background: transparent; padding: 0; }

@media (hover: none) { .kbd-hint { display: none; } }

.fx .tile {
  background: var(--glass);
  -webkit-backdrop-filter: blur(20px) saturate(170%);
  backdrop-filter: blur(20px) saturate(170%);
  border-color: var(--glass-edge);
  box-shadow: inset 0 1px 0 var(--glass-shine), var(--glass-shadow);
}

.fx .banner { box-shadow: var(--glass-shadow); }

/* ----------------------------------------------------- 3D und Lichtreflex */

.fx .tiles { perspective: 1100px; }

.fx .tile {
  --rx: 0deg;
  --ry: 0deg;
  --mx: 50%;
  --my: 0%;
  --px: 0;
  --py: 0;
  transform-style: flat;
  transition: transform 0.5s cubic-bezier(0.2, 0.7, 0, 1), box-shadow 0.3s ease, border-color 0.2s ease;
}

.fx .tile.tilting {
  transform: translateY(-4px) rotateX(var(--rx)) rotateY(var(--ry));
  transition: transform 0.08s linear, box-shadow 0.3s ease, border-color 0.2s ease;
}

.fx .tile::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(circle at var(--mx) var(--my), rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.08) 38%, transparent 60%);
  mix-blend-mode: overlay;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.fx .tile.tilting::after { opacity: 1; }

.fx .tile:hover, .fx .tile:focus-visible { border-color: color-mix(in srgb, var(--accent) 70%, var(--glass-edge)); }

.fx .tile.tilting {
  box-shadow: inset 0 1px 0 var(--glass-shine), 0 24px 50px -18px color-mix(in srgb, var(--glow) 75%, rgba(0, 0, 0, 0.35)), var(--glass-shadow);
}

.fx .tile .tile-media img {
  transform: scale(1.1) translate(calc(var(--px) * -14px), calc(var(--py) * -10px));
  transition: transform 0.5s cubic-bezier(0.2, 0.7, 0, 1);
}

.fx .tile.tilting .tile-media img { transition-duration: 0.08s; }
.fx .tile:hover .tile-media img { transform: scale(1.12) translate(calc(var(--px) * -14px), calc(var(--py) * -10px)); }

/* Touch: Kacheln richten sich beim Reinscrollen aus der Schräge auf */
@supports (animation-timeline: view()) {
  @media (hover: none) and (prefers-reduced-motion: no-preference) {
    .fx .tiles > li {
      animation: rise linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 85%;
      transform-origin: 50% 100%;
    }
  }
}

@keyframes rise {
  from { opacity: 0.2; transform: perspective(900px) rotateX(24deg) translateY(28px) scale(0.94); }
  to   { opacity: 1; transform: none; }
}

/* ---------------------------------------------------------- Dialoge */

.glass-dialog {
  width: min(36rem, calc(100vw - 2rem));
  max-height: min(70vh, 34rem);
  margin: 12vh auto auto;
  padding: 0;
  border: 1px solid var(--glass-edge);
  border-radius: 18px;
  background: var(--glass-strong);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  backdrop-filter: blur(28px) saturate(180%);
  box-shadow: inset 0 1px 0 var(--glass-shine), 0 30px 80px -20px rgba(0, 0, 0, 0.45);
  color: var(--ink);
  overflow: hidden;
}

.glass-dialog[open] { display: flex; flex-direction: column; animation: dlg-in 0.28s cubic-bezier(0.2, 0.7, 0, 1); }

.glass-dialog::backdrop {
  background: rgba(10, 14, 12, 0.28);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}

@keyframes dlg-in {
  from { opacity: 0; transform: perspective(900px) rotateX(-10deg) translateY(-12px) scale(0.97); }
  to   { opacity: 1; transform: none; }
}

.palette-field {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
}

.palette-field svg { width: 1.15rem; height: 1.15rem; color: var(--ink-soft); flex: none; }

.palette-field input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 1.05rem;
  outline: none;
}

.palette-field input::-webkit-search-cancel-button { display: none; }

.palette-list { list-style: none; margin: 0; padding: 0.4rem; overflow-y: auto; }

.palette-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.1rem 1rem;
  padding: 0.6rem 0.75rem;
  border-radius: 10px;
  cursor: pointer;
}

.palette-list li[aria-selected="true"] { background: color-mix(in srgb, var(--accent) 16%, transparent); }
.palette-list li[aria-selected="true"] .po-t { color: var(--accent); }

.po-t { font-weight: 600; }
.po-t em { font-style: normal; font-weight: 400; font-size: 0.75rem; color: var(--ink-soft); }
.po-p { font: 0.78rem var(--mono); color: var(--ink-soft); align-self: center; }
.po-b { grid-column: 1 / -1; font-size: 0.82rem; color: var(--ink-soft); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.po-none { color: var(--ink-soft); cursor: default; }
.palette-list mark { background: none; color: inherit; text-decoration: underline 2px var(--accent); text-underline-offset: 3px; }

.palette-foot {
  display: flex;
  gap: 1.1rem;
  margin: 0;
  padding: 0.6rem 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.75rem;
  color: var(--ink-soft);
}

.palette-foot kbd { margin-right: 0.15rem; }

@media (hover: none) { .palette-foot { display: none; } }

.keys { padding: 1.25rem 1.4rem; }
.keys h2 { margin: 0 0 0.9rem; font-size: 1.1rem; font-weight: 600; }
.keys dl { display: grid; grid-template-columns: auto 1fr; gap: 0.6rem 1.2rem; margin: 0; align-items: center; }
.keys dt { display: flex; gap: 0.2rem; flex-wrap: wrap; }
.keys dd { margin: 0; font-size: 0.92rem; }
.keys .secret { opacity: 0.45; }
.keys form { margin-top: 1.2rem; text-align: right; }

.glass-btn {
  font: inherit;
  font-size: 0.85rem;
  min-height: 38px;
  padding: 0.3rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}

.glass-btn:hover { border-color: var(--accent); }

/* ------------------------------------------------------------- Toast */

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(1.5rem + env(safe-area-inset-bottom));
  z-index: 60;
  padding: 0.6rem 1.1rem;
  border: 1px solid var(--glass-edge);
  border-radius: 999px;
  background: var(--glass-strong);
  -webkit-backdrop-filter: blur(20px) saturate(170%);
  backdrop-filter: blur(20px) saturate(170%);
  box-shadow: var(--glass-shadow);
  font-size: 0.88rem;
  transform: translate(-50%, 200%);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0, 1), opacity 0.3s ease;
  pointer-events: none;
}

.toast.on { transform: translate(-50%, 0); opacity: 1; }

/* --------------------------------------------------- Röntgenblick (Konami) */

.xray body * { outline: 1px dashed color-mix(in srgb, var(--accent) 55%, transparent) !important; outline-offset: -1px; }
.xray .tile { -webkit-backdrop-filter: none !important; backdrop-filter: none !important; background: transparent !important; }
.xray .tile-media img { opacity: 0.18; filter: grayscale(1); }
.xray .tile-media::before {
  content: attr(style);
  position: absolute;
  inset: 0.5rem;
  z-index: 2;
  font: 0.68rem/1.4 var(--mono);
  color: var(--accent);
  overflow: hidden;
  white-space: pre-wrap;
  word-break: break-all;
}
.xray .tile::before {
  content: "<a class=\"tile\"> " attr(href);
  position: absolute;
  right: 0.5rem;
  bottom: 0.4rem;
  z-index: 4;
  font: 0.65rem var(--mono);
  color: var(--accent);
}
.xray .aurora { opacity: 0 !important; }
.xray body {
  background-image:
    linear-gradient(color-mix(in srgb, var(--accent) 10%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 10%, transparent) 1px, transparent 1px);
  background-size: 24px 24px;
}

@media (prefers-reduced-motion: reduce) {
  .aurora i { animation: none; }
  .fx .tile.tilting { transform: none; }
  .fx .tile .tile-media img { transform: none; }
}