/* artistravel Online-Katalog – Viewer */

/* Open Sans von Google Fonts, lokal ausgeliefert (SIL Open Font License, siehe fonts/OFL.txt).
   Variable Schrift: eine Datei je Zeichensatz deckt alle Stärken ab. */
@font-face {
  font-family: "Open Sans"; font-style: normal; font-weight: 300 800; font-display: swap;
  src: url(fonts/OpenSans-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Open Sans"; font-style: normal; font-weight: 300 800; font-display: swap;
  src: url(fonts/OpenSans-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  /* Markenfarben werden aus katalog.json gesetzt (inline im <head>) */
  --brand: #1171A9;
  --brand-light: #65A2C4;
  --sand: #CBC1A9;
  --bg: #0E2232;

  --text: #F3F6F8;
  --text-dim: rgba(243, 246, 248, .66);
  --line: rgba(255, 255, 255, .10);
  --glass: rgba(9, 24, 36, .74);
  --glass-solid: rgba(10, 27, 40, .96);
  --hover: rgba(255, 255, 255, .09);
  --header-h: 68px;
  --toolbar-h: 76px;
  --radius: 14px;
  --ease: cubic-bezier(.22, .7, .2, 1);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 400 15px/1.45 "Open Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overflow: hidden;
}
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; }
svg .dot { stroke-width: 3; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--brand-light); outline-offset: 2px; }
.sr-only { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
[hidden] { display: none !important; }

/* ------------------------------------------------------------------ Grundgerüst */

.app {
  position: fixed; inset: 0;
  display: grid;
  grid-template-rows: var(--header-h) 1fr var(--toolbar-h);
  background:
    radial-gradient(90% 70% at 18% 0%, color-mix(in srgb, var(--brand) 42%, transparent) 0%, transparent 70%),
    radial-gradient(80% 80% at 100% 100%, color-mix(in srgb, var(--brand-light) 16%, transparent) 0%, transparent 60%),
    var(--bg);
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

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

/* weiße Kopfzeile mit dem Original-Logo */
.topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 0 24px;
  min-width: 0;
  z-index: 20;
  background: #fff; color: #23313c;
  box-shadow: 0 1px 0 rgba(0, 0, 0, .08), 0 6px 24px -8px rgba(0, 0, 0, .35);
  /* Kopfzeile reicht bei Geräten mit Kerbe bis an den Rand */
  margin: calc(-1 * env(safe-area-inset-top)) calc(-1 * env(safe-area-inset-right)) 0 calc(-1 * env(safe-area-inset-left));
  padding-top: env(safe-area-inset-top);
}
.brand { display: flex; align-items: center; flex: none; border-radius: 6px; }
.brand img { height: 48px; width: auto; display: block; }
.topbar-divider { width: 1px; height: 30px; background: rgba(0, 0, 0, .12); flex: none; }
.doc-title {
  margin: 0; font-size: 15px; font-weight: 600; letter-spacing: .01em;
  color: #5b6873;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0;
}
.topbar-end { margin-left: auto; display: flex; align-items: center; gap: 8px; flex: none; }
/* Knöpfe im artistravel-Stil (wie btn-primary auf artistravel.de): Blau, 6 px Ecken, fett, Winkel „›“ */
.cta, .back-link, .back-head {
  display: inline-flex; align-items: center; gap: 8px;
  height: 38px; padding: 0 12px 0 15px; border-radius: 6px;
  background: var(--btn); color: #fff; text-decoration: none; white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, .25);
  font-size: 15px; font-weight: 700;
  transition: background .15s, color .15s;
}
.cta:hover, .back-link:hover { background: color-mix(in srgb, var(--btn) 85%, black); }
.cta svg, .back-link svg, .back-head svg { width: 15px; height: 15px; stroke-width: 3; }

/* ------------------------------------------------------------------ Bühne & Buch */

.stage {
  position: relative; overflow: hidden;
  touch-action: none; user-select: none; -webkit-user-select: none;
}
.zoomer { position: absolute; inset: 0; transform-origin: 0 0; }
.zoomer.anim { transition: transform .25s ease; }   /* wie 2026 */

.book { position: absolute; }
.slot { position: absolute; top: 0; width: var(--pw); height: 100%; }
.slot.left { left: 0; }
.slot.right { left: var(--pw); }
.book.single .slot { left: 0; }
.slot.incoming { will-change: transform, opacity; }
/* Blättern (Nachbau 2026): neue Seite unter dem Falz, Rückseite des Blatts darüber */
.slot.under { z-index: 2; }
.slot.leaf { z-index: 3; }
.book.flipping .plink { pointer-events: none; }

.page {
  position: absolute; inset: 0; overflow: hidden;
  background: #fff center / cover no-repeat;
}
.page > img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
  pointer-events: none; -webkit-user-drag: none;
}
/* Bundschatten wie im Katalog 2026: 50 px bei 419 px Seitenbreite, 15 % Schwarz */
.page::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 11.93%; z-index: 1; pointer-events: none;
}
.page.odd::after { left: 0; background: linear-gradient(to right, rgba(0, 0, 0, .15), rgba(255, 255, 255, 0)); }
.page.even::after { right: 0; background: linear-gradient(to left, rgba(0, 0, 0, .15), rgba(255, 255, 255, 0)); }

/* Links & Suchtreffer auf der Seite */
.links, .hl-layer { position: absolute; inset: 0; }
.links { pointer-events: none; }
.hl-layer { pointer-events: none; }
.plink {
  position: absolute; pointer-events: auto; border-radius: 3px;
  transition: background .15s, box-shadow .15s;
}
.plink:hover, .plink:focus-visible {
  background: color-mix(in srgb, var(--brand-light) 22%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--brand) 55%, transparent);
  outline: none;
}
.links.flash .plink { animation: link-flash 1.6s ease-out; }
@keyframes link-flash {
  0%, 30% { background: color-mix(in srgb, var(--brand-light) 26%, transparent); }
  100% { background: transparent; }
}
.hl {
  position: absolute; border-radius: 2px;
  background: rgba(255, 208, 0, .5); mix-blend-mode: multiply;
  animation: hl-in .4s ease-out;
}
@keyframes hl-in { from { transform: scale(1.6); opacity: 0; } }


/* Zeiger */
.app.is-zoomed .stage { cursor: grab; }
.app.is-zoomed .stage.grabbing { cursor: grabbing; }

/* Seitenpfeile */
.side-nav {
  position: absolute; top: 50%; z-index: 4;
  width: 48px; height: 48px; margin-top: -24px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(255, 255, 255, .07); color: var(--text);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  transition: background .2s, opacity .25s, transform .2s;
}
.side-nav svg { width: 26px; height: 26px; }
.side-nav:hover { background: rgba(255, 255, 255, .16); }
.side-nav:active { transform: scale(.94); }
.side-nav.prev { left: 14px; }
.side-nav.next { right: 14px; }
.side-nav:disabled { opacity: 0; pointer-events: none; }
.app.is-zoomed .side-nav:not(:disabled) { opacity: .35; }


/* ------------------------------------------------------------------ Werkzeugleiste */

.toolbar {
  position: relative;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 0 16px 14px; z-index: 20;
}
/* „Zurück zur Katalog-Übersicht“ unten links, mittig zur Werkzeugleiste */
.back-link {
  position: absolute; left: 16px; top: 9px;
  height: 44px; padding: 0 14px 0 11px; font-size: 14px;
  box-shadow: 0 10px 30px -12px rgba(0, 0, 0, .5);
}
.back-link .bl-long { display: none; }
@media (min-width: 1600px) {
  .back-link .bl-long { display: inline; }
  .back-link .bl-short { display: none; }
}
/* auf schmalen Bildschirmen sitzt der Knopf stattdessen in der Kopfzeile neben „Zur Website“ */
/* zweiter Knopf in der Kopfzeile: umrandet (wie btn-outline-primary), damit „Zur Website“ führt */
.back-head {
  display: none; padding: 0 15px 0 11px;
  background: #fff; color: var(--btn); border-color: var(--btn);
}
.back-head:hover { background: var(--btn); color: #fff; }
.back-head .bh-short { display: none; }
.tb-group {
  display: flex; align-items: center; gap: 2px;
  height: 52px; padding: 0 6px; border-radius: var(--radius);
  background: var(--glass); border: 1px solid var(--line);
  backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 10px 30px -12px rgba(0, 0, 0, .5);
}
.tb-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  height: 40px; min-width: 40px; padding: 0 9px; border-radius: 10px;
  color: var(--text); text-decoration: none; font-size: 14px; font-weight: 600;
  transition: background .15s, color .15s;
}
.tb-btn:hover { background: var(--hover); }
.tb-btn:disabled { opacity: .3; pointer-events: none; }
.tb-btn[aria-expanded="true"] { background: color-mix(in srgb, var(--brand) 55%, transparent); }
.tb-label { color: var(--text-dim); font-weight: 600; }
.tb-btn[aria-expanded="true"] .tb-label { color: var(--text); }
.tb-more { display: none; }

.pager { position: relative; display: flex; align-items: center; gap: 12px; padding: 0 6px; }
.indicator, .jump {
  display: inline-flex; align-items: baseline; justify-content: center; gap: 5px;
  min-width: 92px; height: 34px; padding: 0 10px; border-radius: 8px;
  font-variant-numeric: tabular-nums; font-weight: 600; font-size: 14px; line-height: 34px;
  white-space: nowrap; flex-shrink: 0;
}
.indicator:hover { background: var(--hover); }
.indicator .of, .jump .of { color: var(--text-dim); font-weight: 400; }
.jump { background: rgba(255, 255, 255, .08); margin: 0; }
.jump input {
  width: 42px; border: 0; background: none; outline: none; text-align: right; padding: 0;
  font-weight: 600; font-variant-numeric: tabular-nums;
}
.jump { padding-right: 4px; }
.jump-go {
  align-self: center; display: grid; place-items: center;
  width: 26px; height: 26px; margin-left: 3px; border-radius: 6px;
  background: var(--btn); color: #fff; border: 1px solid rgba(255, 255, 255, .25);
}
.jump-go svg { width: 13px; height: 13px; stroke-width: 3; }

.scrubber {
  -webkit-appearance: none; appearance: none; background: transparent;
  width: clamp(120px, 16vw, 240px); height: 24px; margin: 0; cursor: pointer;
  --pct: 0%;
}
.scrubber::-webkit-slider-runnable-track {
  height: 4px; border-radius: 4px;
  background: linear-gradient(to right, var(--brand-light) var(--pct), rgba(255, 255, 255, .16) var(--pct));
}
.scrubber::-moz-range-track { height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .16); }
.scrubber::-moz-range-progress { height: 4px; border-radius: 4px; background: var(--brand-light); }
.scrubber::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px; margin-top: -5px; border-radius: 50%;
  background: #fff; border: 0; box-shadow: 0 1px 4px rgba(0, 0, 0, .4);
}
.scrubber::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 0; }

.scrub-bubble {
  position: fixed; z-index: 40; bottom: calc(var(--toolbar-h) + 8px + env(safe-area-inset-bottom));
  padding: 8px; border-radius: 12px; background: var(--glass-solid); border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .5);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  transform: translateX(-50%); pointer-events: none;
  opacity: 0; transition: opacity .15s;
}
.scrub-bubble.show { opacity: 1; }
.sb-pages { display: flex; height: 120px; }
.sb-pages img { height: 100%; width: auto; display: block; background: #fff; }
.scrub-bubble span { font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------------ Seitenleisten */

.drawer {
  position: fixed; z-index: 30;
  top: calc(var(--header-h) + env(safe-area-inset-top));
  bottom: calc(var(--toolbar-h) + env(safe-area-inset-bottom));
  width: min(380px, calc(100vw - 24px));
  display: flex; flex-direction: column;
  background: var(--glass-solid); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 24px 60px -10px rgba(0, 0, 0, .55);
  visibility: hidden; opacity: 0;
  transition: transform .3s var(--ease), opacity .3s var(--ease), visibility 0s .3s;
}
.drawer-left { left: 14px; transform: translateX(-24px); }
.drawer-right { right: 14px; transform: translateX(24px); }
.drawer.open, .overview.open, .modal.open, .popover.open {
  visibility: visible; opacity: 1; transform: none;
  transition: transform .3s var(--ease), opacity .3s var(--ease), visibility 0s;
}
.drawer-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 12px 10px 20px;
}
.drawer-head h2, .overview-head h2 { margin: 0; font-size: 17px; font-weight: 600; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  color: var(--text-dim); transition: background .15s, color .15s;
}
.icon-btn:hover { background: var(--hover); color: var(--text); }
.drawer-body { flex: 1; overflow-y: auto; padding: 4px 10px 14px; overscroll-behavior: contain; }

/* Inhalt */
.toc-item {
  width: 100%; display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 14px;
  padding: 8px 10px; border-radius: 10px; text-align: left;
  transition: background .15s;
}
.toc-item:hover { background: var(--hover); }
.toc-item img { width: 44px; height: auto; aspect-ratio: var(--ar); object-fit: cover; border-radius: 3px; background: #fff; display: block; box-shadow: 0 2px 8px rgba(0, 0, 0, .3); }
.toc-title { font-weight: 600; line-height: 1.3; }
.toc-item.lvl-2 .toc-title { font-weight: 400; color: var(--text-dim); }
.toc-item.lvl-2 { padding-left: 24px; }
.toc-page { color: var(--text-dim); font-size: 13px; font-variant-numeric: tabular-nums; }
.toc-item.current { background: color-mix(in srgb, var(--brand) 30%, transparent); }
.toc-item.current .toc-page { color: var(--text); }
.empty-note { padding: 10px 12px; color: var(--text-dim); }

/* Suche */
.search-box {
  position: relative; margin: 2px 16px 8px;
}
.search-box svg { position: absolute; left: 12px; top: 50%; margin-top: -10px; width: 20px; height: 20px; color: var(--text-dim); }
.search-box input {
  width: 100%; height: 46px; padding: 0 14px 0 42px; border-radius: 12px;
  background: rgba(255, 255, 255, .07); border: 1px solid var(--line); outline: none;
  font-size: 16px;
  transition: border-color .15s, background .15s;
}
.search-box input:focus { border-color: var(--brand-light); background: rgba(255, 255, 255, .1); }
.search-box input::placeholder { color: rgba(243, 246, 248, .4); }
.search-status { margin: 0; padding: 2px 20px 8px; font-size: 13px; color: var(--text-dim); min-height: 1.45em; }
.hit {
  width: 100%; display: grid; grid-template-columns: 54px 1fr; gap: 14px; align-items: start;
  padding: 10px; border-radius: 10px; text-align: left; transition: background .15s;
}
.hit:hover, .hit.current { background: var(--hover); }
.hit img { width: 54px; aspect-ratio: var(--ar); object-fit: cover; border-radius: 3px; background: #fff; display: block; box-shadow: 0 2px 8px rgba(0, 0, 0, .3); }
.hit-head { display: flex; justify-content: space-between; gap: 8px; font-weight: 600; font-size: 14px; }
.hit-count { color: var(--text-dim); font-weight: 400; font-size: 12px; }
.hit p { margin: 3px 0 0; font-size: 13px; line-height: 1.45; color: var(--text-dim); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.hit mark { background: rgba(255, 208, 0, .28); color: var(--text); border-radius: 2px; padding: 0 1px; }

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

.overview {
  position: fixed; z-index: 35; inset: 0;
  display: flex; flex-direction: column;
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  visibility: hidden; opacity: 0; transform: scale(.985);
  transition: transform .3s var(--ease), opacity .3s var(--ease), visibility 0s .3s;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.overview-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px 8px 28px; max-width: 1400px; width: 100%; margin: 0 auto;
}
.overview-grid {
  flex: 1; overflow-y: auto; overscroll-behavior: contain;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 26px 22px; padding: 10px 28px 40px; max-width: 1400px; width: 100%; margin: 0 auto;
  align-content: start;
}
.ov-item { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 6px; border-radius: 10px; transition: background .15s; }
.ov-item:hover { background: var(--hover); }
.ov-pages { display: flex; width: 100%; aspect-ratio: var(--ar2); box-shadow: 0 8px 22px -6px rgba(0, 0, 0, .55); }
.ov-pages > * { flex: 1; min-width: 0; height: 100%; object-fit: cover; display: block; background: #fff; }
.ov-pages > i { background: none; }
.ov-item.cover .ov-pages, .ov-item.back .ov-pages { box-shadow: none; }
.ov-item.cover .ov-pages img, .ov-item.back .ov-pages img { box-shadow: 0 8px 22px -6px rgba(0, 0, 0, .55); }
.ov-label { font-size: 13px; color: var(--text-dim); font-variant-numeric: tabular-nums; }
.ov-item.current .ov-pages { outline: 3px solid var(--brand-light); outline-offset: 3px; }
.ov-item.current .ov-label { color: var(--text); font-weight: 600; }

/* ------------------------------------------------------------------ Teilen */

.modal {
  position: fixed; inset: 0; z-index: 45;
  display: grid; place-items: center; padding: 16px;
  background: rgba(4, 12, 18, .55);
  visibility: hidden; opacity: 0;
  transition: opacity .25s var(--ease), visibility 0s .25s;
}
.modal-card {
  width: min(460px, 100%); max-height: calc(100% - 32px); overflow-y: auto;
  background: var(--glass-solid); border: 1px solid var(--line); border-radius: 18px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .6);
  padding: 0 20px 20px;
  transform: translateY(10px) scale(.98); transition: transform .3s var(--ease);
}
.modal.open .modal-card { transform: none; }
.modal .drawer-head { padding: 16px 0 10px; }
.native-share {
  width: 100%; height: 46px; border-radius: 6px; margin-bottom: 14px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--btn); color: #fff; font-weight: 700;
  border: 1px solid rgba(255, 255, 255, .25);
}
.check { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-dim); margin: 0 0 10px; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--brand); }
.copy-row { display: flex; gap: 8px; }
.copy-row input {
  flex: 1; min-width: 0; border-radius: 6px; border: 1px solid var(--line);
  background: rgba(255, 255, 255, .06); padding: 0 12px; height: 42px; font-size: 13px; outline: none;
}
.btn {
  display: inline-flex; align-items: center; gap: 6px; height: 42px; padding: 0 14px; border-radius: 6px;
  background: var(--btn); color: #fff; font-weight: 700; font-size: 14px; white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, .25);
  transition: background .15s;
}
.btn svg { width: 18px; height: 18px; }
.btn:hover { background: color-mix(in srgb, var(--btn) 85%, black); }
.share-targets { display: grid; grid-template-columns: repeat(auto-fill, minmax(124px, 1fr)); gap: 8px; margin: 14px 0 6px; }
.share-target {
  display: flex; align-items: center; gap: 10px; height: 46px; padding: 0 12px; border-radius: 12px;
  background: rgba(255, 255, 255, .06); border: 1px solid var(--line); text-decoration: none; font-weight: 600; font-size: 14px;
  transition: background .15s, border-color .15s;
}
.share-target:hover { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .2); }
.share-target .badge {
  width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center; flex: none;
  color: #fff; font-size: 13px; font-weight: 700; font-family: Arial, sans-serif;
}
.share-target .badge svg { width: 16px; height: 16px; stroke-width: 2; }

/* Mehr-Menü (schmale Bildschirme) */
.popover {
  position: fixed; z-index: 40; right: 12px;
  bottom: calc(var(--toolbar-h) + 4px + env(safe-area-inset-bottom));
  min-width: 230px; padding: 6px; border-radius: var(--radius);
  background: var(--glass-solid); border: 1px solid var(--line); box-shadow: 0 20px 50px rgba(0, 0, 0, .55);
  visibility: hidden; opacity: 0; transform: translateY(8px);
  transition: transform .25s var(--ease), opacity .25s var(--ease), visibility 0s .25s;
}
.menu-item {
  width: 100%; display: flex; align-items: center; gap: 12px; padding: 0 12px; height: 46px; border-radius: 10px;
  text-decoration: none; font-weight: 600; font-size: 15px; text-align: left;
}
.menu-item:hover { background: var(--hover); }
.menu-item small { margin-left: auto; color: var(--text-dim); font-weight: 400; font-size: 12px; }

/* ------------------------------------------------------------------ Meldungen & Laden */

.toast {
  position: fixed; z-index: 60; left: 50%; top: calc(var(--header-h) + 12px + env(safe-area-inset-top));
  transform: translate(-50%, -10px); opacity: 0; pointer-events: none;
  padding: 10px 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
  background: #fff; color: #0E2232; box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
  transition: opacity .25s, transform .25s var(--ease);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.loading {
  position: fixed; inset: 0; z-index: 100;
  display: grid; place-items: center;
  background: radial-gradient(90% 70% at 18% 0%, color-mix(in srgb, var(--brand) 42%, transparent) 0%, transparent 70%), var(--bg);
  transition: opacity .5s ease, visibility 0s .5s;
}
.loading.done { opacity: 0; visibility: hidden; pointer-events: none; }
.loading-inner { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.loading img { height: min(46vh, 380px); width: auto; display: block; box-shadow: 0 24px 60px -12px rgba(0, 0, 0, .6); animation: rise .8s var(--ease) both; background: #fff; }
.loading p { margin: 0; font-weight: 600; color: var(--text-dim); letter-spacing: .02em; }
.loading-bar { width: 160px; height: 3px; border-radius: 3px; background: rgba(255, 255, 255, .12); overflow: hidden; }
.loading-bar span { display: block; width: 40%; height: 100%; border-radius: 3px; background: var(--brand-light); animation: load 1.1s ease-in-out infinite; }
@keyframes load { from { transform: translateX(-100%); } to { transform: translateX(250%); } }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }

.noscript { position: fixed; inset: 0; z-index: 200; display: grid; place-content: center; text-align: center; padding: 24px; background: var(--bg); }
.noscript a { color: var(--brand-light); }

/* ------------------------------------------------------------------ Kleine Bildschirme */

/* Platz für den Übersicht-Knopf unten links: Leiste schrittweise kompakter */
@media (max-width: 1439px) {
  .tb-label { display: none; }
}
@media (max-width: 1239px) {
  .scrubber { display: none; }
}
@media (max-width: 1039px) {
  .tb-extra, .tb-zoom { display: none; }
  .tb-more { display: flex; }
}
@media (max-width: 859px) {
  .back-link { display: none; }
  .back-head { display: inline-flex; }
}
@media (max-width: 640px) {
  :root { --header-h: 58px; --toolbar-h: 68px; }
  .topbar { padding: 0 14px; gap: 12px; }
  .brand img { height: 40px; }
  .doc-title { font-size: 14px; }
  .cta, .back-head { height: 34px; gap: 6px; font-size: 14px; }
  .cta { padding: 0 9px 0 11px; }
  .back-head { padding: 0 11px 0 8px; }
  .cta svg, .back-head svg { width: 13px; height: 13px; }
  .side-nav { display: none; }
  .toolbar { gap: 6px; padding: 0 8px 10px; }
  .tb-group { height: 50px; padding: 0 4px; }
  .tb-btn { min-width: 38px; padding: 0 6px; }
  .pager { padding: 0; gap: 0; }
  .indicator, .jump { min-width: 78px; padding: 0 6px; }
  .drawer { left: 8px; right: 8px; width: auto; }
  .drawer-left, .drawer-right { transform: translateY(16px); }
  .overview-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 18px 12px; padding: 8px 14px 30px; }
  .overview-head { padding: 12px 10px 6px 16px; }
}
@media (max-width: 400px) {
  .topbar-divider, .doc-title { display: none; }
  .toolbar { gap: 4px; padding: 0 6px 10px; }
  .tb-group { padding: 0 2px; }
  .tb-btn { min-width: 34px; padding: 0 4px; }
  .indicator, .jump { min-width: 0; gap: 3px; padding: 0 4px; font-size: 13px; }
  .jump .of { display: none; }   /* beim Eintippen Platz für den „›“-Knopf */
}
/* Handys: Kurzform „Übersicht“, damit Logo, Übersicht und „Zur Website“ nebeneinander passen */
@media (max-width: 699px) {
  .topbar:has(.back-head) :is(.topbar-divider, .doc-title) { display: none; }
}
@media (max-width: 459px) {
  .back-head .bh-long { display: none; }
  .back-head .bh-short { display: inline; }
}
@media (max-width: 374px) {
  .topbar { gap: 8px; padding: 0 10px; }
  .topbar-end { gap: 6px; }
  .brand img { height: 34px; }
  .cta, .back-head { font-size: 13px; gap: 5px; }
  .cta { padding: 0 8px 0 9px; }
  .back-head { padding: 0 9px 0 7px; }
}
@media (max-width: 339px) {
  .cta { padding: 0 10px; }
  .cta svg { display: none; }
}
/* sehr schmale Handys: „/ 155“ weglassen, damit „143–144“ in einer Zeile bleibt */
@media (max-width: 359px) {
  .indicator .of, .jump .of { display: none; }
}
@media (hover: none) {
  .tb-zoom { display: none; }
  /* iOS zoomt beim Antippen von Eingabefeldern unter 16 px in die ganze Seite – das verschiebt den Viewer */
  .jump input, .copy-row input { font-size: 16px; }
}
/* ------------------------------------------------------------------ Handy im Querformat */

/* Das Buch nutzt die volle Höhe; Kopfzeile und Leiste liegen darüber. Ein Tipp auf die Seite
   blendet beide aus und wieder ein (viewer.js setzt .ui-hidden). Ränder für Notch und Home-Balken. */
@media (orientation: landscape) and (max-height: 500px) {
  :root { --header-h: 52px; --toolbar-h: 62px; }
  .app { grid-template-rows: 1fr; }
  .stage { grid-row: 1; }
  .topbar, .toolbar {
    position: absolute; left: 0; right: 0; z-index: 20;
    transition: transform .3s var(--ease), opacity .3s var(--ease);
  }
  .topbar {
    top: 0; margin: 0; height: calc(var(--header-h) + env(safe-area-inset-top)); gap: 14px;
    padding: env(safe-area-inset-top) calc(16px + env(safe-area-inset-right)) 0 calc(16px + env(safe-area-inset-left));
  }
  .brand img { height: 36px; }
  .cta, .back-head { height: 34px; }
  .toolbar {
    bottom: 0;
    padding: 0 calc(12px + env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) calc(12px + env(safe-area-inset-left));
  }
  .tb-group { height: 46px; }
  .back-link { top: 1px; left: calc(12px + env(safe-area-inset-left)); }
  .app.ui-hidden .topbar { transform: translateY(-100%); }
  .app.ui-hidden .toolbar { transform: translateY(100%); opacity: 0; pointer-events: none; }
  .app.ui-hidden .side-nav { opacity: 0; pointer-events: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}