/* Vollbild-Seite (/galerie/<slug>/<nr>), auch ohne JS. Vorgabe: design/frontend-design.md.
   Wird zusätzlich zu front.css geladen; alle Werte kommen aus den Tokens dort (var(--f-*)). */

/* ==== Seite: unter 1024 px einspaltig (Bild, Titel, Navigation, Abschnitte), ab 1024 zweispaltig ==== */
.f-viewer--page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--f-bg-viewer);
  color: var(--f-text);
}

.f-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: 16px;
  touch-action: pan-y pinch-zoom; /* Wischen nach links/rechts übernimmt viewer.js (hswipe) */
}
/* Ambient-Hintergrund (Bühne und Mobil .f-mv): Datei des Hauptbilds, stark verschwommen und abgedunkelt; --f-bg-viewer bleibt Grund darunter.
   scale blendet die hellen Blur-Ränder aus, overflow schneidet sie ab. Rein dekorativ (aria-hidden). */
.f-stage__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.f-stage__bgimg {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(var(--f-blur-ambient)) brightness(.55) saturate(1.1);
  transform: scale(1.2);
  transition: opacity var(--f-dur-base) var(--f-ease);
}
.f-stage__bgimg.is-fade { opacity: 0; }
.f-stage__bgimg:not(:only-child) { will-change: opacity; } /* nur während des Crossfades */
.f-stage__frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}
.f-stage__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  max-height: 75vh;
  max-height: 75dvh;
  object-fit: contain;
  filter: var(--f-shadow-photo); /* folgt dem sichtbaren Bild, nicht der Box */
}
.f-stage__status {
  margin: 0;
  padding: 64px 0;
  font: 400 var(--f-fs-2xs)/1.4 var(--f-font-mono);
  letter-spacing: .04em;
  color: var(--f-text-muted);
}

/* ==== Icon-Button (Schließen) ==== */
.f-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--f-hit);
  height: var(--f-hit);
  border-radius: var(--f-radius-pill);
  color: var(--f-text-icon);
  text-decoration: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background var(--f-dur-fast) var(--f-ease), color var(--f-dur-fast) var(--f-ease);
}
.f-icon-btn:hover { background: var(--f-bg-hover); color: var(--f-text-strong); }
.f-icon-btn:focus-visible { outline-offset: -2px; }

/* ==== Panel ==== */
.f-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--f-bg-panel);
  border-top: 1px solid var(--f-line);
}
.f-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 14px 0 var(--f-panel-pad-x);
}
.f-panel__kicker {
  font: 400 var(--f-fs-2xs)/1.4 var(--f-font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--f-text-muted);
}
.f-panel__titles {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 6px var(--f-panel-pad-x) 24px;
}
.f-panel__title {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  min-height: 2.2em; /* Höhe für 2 Zeilen reserviert */
  margin: 0;
  font: 500 var(--f-fs-2xl)/1.1 var(--f-font-sans);
  letter-spacing: var(--f-ls-tight);
  color: var(--f-text-title);
  overflow-wrap: anywhere;
}
.f-panel__date {
  margin: 0;
  font-size: var(--f-fs-md);
  color: var(--f-text-dim);
}

/* Vor/Zurück + Zähler */
.f-pnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 var(--f-panel-pad-x) 24px;
}
.f-pnav__mid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 0;
  margin: 0;
  text-align: center;
}
.f-pnav__count {
  font: 400 var(--f-fs-base)/1.2 var(--f-font-mono);
  letter-spacing: .04em;
  color: var(--f-text);
}
.f-pnav__hint {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  min-height: 2.8em; /* Höhe für 2 Zeilen reserviert */
  line-height: 1.4;
  max-width: 100%;
  font-size: var(--f-fs-2xs);
  color: var(--f-text-muted);
  overflow-wrap: anywhere;
}
.f-nav-btn {
  display: inline-flex;
  flex: none;
  align-items: center;
  justify-content: center;
  width: var(--f-nav-btn);
  height: var(--f-nav-btn);
  border: 1px solid var(--f-line-control);
  border-radius: var(--f-radius-pill);
  color: var(--f-text);
  text-decoration: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background var(--f-dur-fast) var(--f-ease), border-color var(--f-dur-fast) var(--f-ease);
}
a.f-nav-btn[href]:hover {
  background: var(--f-bg-hover-2);
  border-color: var(--f-line-control-hover);
  color: var(--f-text);
}
.f-nav-btn[aria-disabled="true"]:hover { color: var(--f-text); }
.f-nav-btn[aria-disabled="true"] {
  cursor: default;
  background: transparent;
  border-color: color-mix(in srgb, var(--f-line-control) 30%, transparent); /* Rand und Icon gedimmt, der Fokusring bleibt voll sichtbar */
}
.f-nav-btn[aria-disabled="true"] svg { opacity: .3; }

/* Abschnitte */
.f-panel__scroll {
  border-top: 1px solid var(--f-line);
  scrollbar-width: thin;
  scrollbar-color: var(--f-line-control) transparent;
}
.f-info__section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--f-section-pad-y) var(--f-panel-pad-x);
  border-bottom: 1px solid var(--f-line);
}
.f-info__section:last-child { border-bottom: 0; }
.f-info__section:has(.f-info__tags) { gap: 12px; }
.f-info__heading {
  margin: 0;
  font: 400 var(--f-fs-2xs)/1.4 var(--f-font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--f-text-muted);
}
.f-info__text {
  margin: 0;
  font-size: var(--f-fs-md);
  line-height: 1.6;
  color: var(--f-text-caption);
  overflow-wrap: anywhere;
}
.f-info__dl {
  display: grid;
  grid-template-columns: minmax(0, 104px) minmax(0, 1fr);
  gap: 11px 12px;
  margin: 4px 0 0;
}
.f-info__dl dt {
  font-size: var(--f-fs-sm);
  color: var(--f-text-muted);
}
.f-info__dl dd {
  margin: 0;
  font: 400 var(--f-fs-data)/1.4 var(--f-font-mono);
  color: var(--f-text);
  overflow-wrap: anywhere;
}
.f-info__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.f-chip {
  padding: 5px 11px;
  border: 1px solid var(--f-line-control);
  border-radius: var(--f-radius-pill);
  font-size: var(--f-fs-xs);
  color: var(--f-text-caption);
  overflow-wrap: anywhere;
}

/* Fuß */
.f-panel__foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-top: auto;
  padding: 14px var(--f-panel-pad-x);
  border-top: 1px solid var(--f-line);
  font-size: var(--f-fs-xs);
  color: var(--f-text-muted);
}
.f-panel__files { flex: none; }
.f-panel__file {
  min-width: 0;
  font-family: var(--f-font-mono);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ==== Ab 1024 px: Bühne links, Panel rechts (immer sichtbar) ==== */
@media (min-width: 1024px) {
  .f-viewer--page {
    flex-direction: row;
    height: 100vh;
    height: 100dvh;
    min-height: 0;
    overflow: hidden;
  }
  .f-stage {
    flex: 1;
    height: 100%;
    padding: var(--f-stage-pad);
  }
  .f-stage__frame { height: 100%; }
  .f-stage__img {
    height: 100%;
    max-height: none;
  }
  .f-panel {
    position: relative;
    z-index: 2;
    flex: none;
    width: var(--f-panel-w);
    height: 100%;
    overflow-y: auto;
    border-top: 0;
    border-left: 1px solid var(--f-line);
    box-shadow: var(--f-shadow-panel);
    scrollbar-width: thin;
    scrollbar-color: var(--f-line-control) transparent;
  }
  .f-panel__scroll {
    flex: 1 1 auto;
    min-height: 8rem;
    overflow-y: auto;
  }
}

/* ==== Overlay / übernommene Seite (viewer.js, Desktop ab 768 px) ====
   Alles unter .f-viewer--ov, damit die Seite ohne JS (.f-viewer--page) unverändert bleibt. */
.f-viewer--ov {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  flex-direction: row;
  overflow: hidden;
  background: var(--f-bg-viewer);
  color: var(--f-text);
}
.f-viewer--ov .f-stage {
  position: relative;
  flex: 1;
  height: 100%;
  padding: 16px;
}
.f-viewer--ov .f-stage__frame {
  flex: none;
  display: block;
  width: 0;  /* Maße setzt viewer.js per CSSOM (Seitenverhältnis des Bildes) */
  height: 0;
}
.f-viewer--ov .f-stage__img,
.f-viewer--ov .f-stage__blur {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: contain;
}
.f-viewer--ov .f-stage__blur { object-fit: fill; }
.f-viewer--ov .f-stage__img { transition: opacity var(--f-dur-pill) var(--f-ease); }
.f-viewer--ov .f-stage__img.is-fade { opacity: 0; }

/* Lade- und Fehlerzustand in der Bühne */
.f-viewer--ov .f-stage__status {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 0;
  pointer-events: none;
}
.f-viewer--ov .f-stage__status .f-btn { pointer-events: auto; }
.f-stage__msg {
  margin: 0;
  padding: 8px 14px;
  background: var(--f-chip-bg);
  border-radius: var(--f-radius-pill);
  -webkit-backdrop-filter: blur(var(--f-blur-chip));
  backdrop-filter: blur(var(--f-blur-chip));
  text-align: center;
  font: 400 var(--f-fs-2xs)/1.4 var(--f-font-mono);
  letter-spacing: .04em;
  color: var(--f-text);
}
.f-stage__msg:empty { display: none; }
.f-viewer--ov .f-stage__status .f-btn:focus-visible { box-shadow: 0 0 0 2px var(--f-focus-halo); }

/* Panel im Overlay */
.f-viewer--ov .f-panel {
  position: relative;
  z-index: 3;
  flex: none;
  width: var(--f-panel-w);
  max-width: 100%;
  height: 100%;
  overflow-y: auto;
  border-top: 0;
  border-left: 1px solid var(--f-line);
  box-shadow: var(--f-shadow-panel);
  scrollbar-width: thin;
  scrollbar-color: var(--f-line-control) transparent;
}
.f-viewer--ov .f-panel[hidden] { display: none; }
.f-viewer--ov .f-panel__scroll {
  flex: 1 1 auto;
  min-height: 8rem;
  overflow-y: auto;
}
.f-panel__tools { display: flex; gap: 2px; }
.f-panel.is-enter { animation: f-panel-in var(--f-dur-panel) var(--f-ease-out); }
@keyframes f-panel-in { from { transform: translateX(100%); } to { transform: none; } }

button.f-icon-btn {
  appearance: none;
  padding: 0;
  border: 0;
  background: transparent;
  font: inherit;
  cursor: pointer;
}

/* Schwebende Icons bei ausgeblendetem Panel */
.f-float {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 4;
  display: flex;
  gap: 6px;
  padding: 2px;
  background: var(--f-float-bg);
  border: 1px solid var(--f-line-float);
  border-radius: var(--f-radius-pill);
  -webkit-backdrop-filter: blur(var(--f-blur-chip));
  backdrop-filter: blur(var(--f-blur-chip));
}
.f-float[hidden] { display: none; }
.f-float .f-icon-btn:focus-visible { outline-offset: 2px; box-shadow: 0 0 0 2px var(--f-focus-halo); }

/* Unter 1024 px liegt das Panel als Überlagerung über der Bühne */
@media (max-width: 1023.98px) {
  .f-viewer--ov .f-panel {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 3;
  }
}
@media (min-width: 1024px) {
  .f-viewer--ov .f-stage { padding: var(--f-stage-pad); }
}

/* ==== Vollbild mobil (viewer.js, unter 768 px): Scroll-Snap-Folien, Kopf, Fuß, Wisch-Hinweis, Bottom-Sheet ====
   Wird nur von viewer.js erzeugt; die Seite ohne JS (.f-viewer--page) bleibt unberührt. */
.f-mv {
  --f-grad-mv-top: linear-gradient(to bottom, rgba(0, 0, 0, .65), rgba(0, 0, 0, 0));
  --f-grad-mv-bar: linear-gradient(to top, rgba(0, 0, 0, .88) 0%, rgba(0, 0, 0, .75) 55%, rgba(0, 0, 0, 0) 100%);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--f-bg-viewer);
  color: var(--f-text);
}
.f-mv__snap {
  position: relative; /* offsetTop der Folien bezieht sich auf den Container */
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  overscroll-behavior: contain;
  overflow-anchor: none; /* viewer.js gleicht vorne ergänzte/entfernte Folien selbst aus (Platzhalter) */
  scrollbar-width: none;
  touch-action: pan-y pinch-zoom; /* quer: Wischen nach links/rechts übernimmt viewer.js (hswipe) */
}
.f-mv__snap::-webkit-scrollbar { display: none; }
.f-mv__slide {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}
.f-mv__frame {
  position: relative;
  flex: none;
  width: 0; /* Maße setzt viewer.js per CSSOM (Seitenverhältnis des Bildes) */
  height: 0;
  box-shadow: var(--f-shadow-photo-box); /* Rahmen = Bildmaße; box-shadow statt drop-shadow schont das Wischen */
}
.f-mv__img,
.f-mv__blur {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
}
.f-mv__img {
  object-fit: contain;
  touch-action: pan-y pinch-zoom; /* natives Pinch-Zoom bleibt erlaubt */
  transition: opacity var(--f-dur-pill) var(--f-ease);
}
.f-mv__img.is-loading { opacity: 0; }
.f-mv__blur { object-fit: fill; }

/* Lade- und Fehlerzustand in der Folie */
.f-mv__status {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 0 18px;
  pointer-events: none;
}
.f-mv__status .f-btn { pointer-events: auto; }
.f-mv__status .f-btn:focus-visible { box-shadow: 0 0 0 2px var(--f-focus-halo); }

/* Runde Icon-Buttons über dem Foto */
.f-icon-btn.f-icon-btn--over-photo {
  background: var(--f-chip-bg);
  -webkit-backdrop-filter: blur(var(--f-blur-chip));
  backdrop-filter: blur(var(--f-blur-chip));
  color: var(--f-text);
}
.f-icon-btn.f-icon-btn--over-photo:hover { background: var(--f-chip-bg); color: var(--f-text-strong); }
.f-icon-btn.f-icon-btn--over-photo:focus-visible {
  outline-offset: 2px;
  box-shadow: 0 0 0 2px var(--f-focus-halo);
}

/* Kopf: Zähler links, Schließen rechts */
.f-mv__top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(14px + env(safe-area-inset-top)) calc(14px + env(safe-area-inset-right)) 0 calc(18px + env(safe-area-inset-left));
  pointer-events: none;
}
.f-mv__top::before { /* Verlauf hinter Zähler und Schließen (K6) */
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: -1;
  height: calc(72px + env(safe-area-inset-top));
  background: var(--f-grad-mv-top);
}
.f-mv__top .f-icon-btn { pointer-events: auto; }
.f-mv__counter {
  font: 400 var(--f-fs-xs)/1 var(--f-font-mono);
  letter-spacing: .04em;
  color: var(--f-text);
  text-shadow: 0 1px 6px rgba(0, 0, 0, .8);
}

/* Fuß: Titel und Datum links, Info-Button rechts */
.f-mv__bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  padding: 56px calc(18px + env(safe-area-inset-right)) calc(22px + env(safe-area-inset-bottom)) calc(18px + env(safe-area-inset-left));
  background: var(--f-grad-mv-bar);
  pointer-events: none;
}
.f-mv__bar .f-icon-btn { pointer-events: auto; flex: none; }
.f-mv__titles {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.f-mv__title {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  margin: 0;
  font: 500 var(--f-fs-lg)/1.25 var(--f-font-sans);
  letter-spacing: -.01em;
  color: var(--f-text-title);
  overflow-wrap: anywhere;
  text-shadow: var(--f-shadow-text);
}
.f-mv__date {
  margin: 0;
  font-size: var(--f-fs-xs);
  color: var(--f-text);
  text-shadow: var(--f-shadow-text);
}

/* Wisch-Hinweis (Chip, K6); --next am Galerieende dauerhaft mit ruhendem Pfeil */
.f-mv__hint {
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc(104px + env(safe-area-inset-bottom));
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: fit-content;
  max-width: calc(100% - 36px);
  margin: 0 auto;
  padding: 6px 12px;
  background: var(--f-chip-bg);
  -webkit-backdrop-filter: blur(var(--f-blur-chip));
  backdrop-filter: blur(var(--f-blur-chip));
  border-radius: var(--f-radius-pill);
  color: var(--f-text);
  text-align: center;
  pointer-events: none;
}
.f-mv__hint[hidden] { display: none; }
.f-mv__hint-ic { display: flex; }
.f-mv__hint-ic svg { animation: f-mv-hint 1.8s ease-in-out infinite; }
.f-mv__hint--next .f-mv__hint-ic svg { animation: none; }
.f-mv__hint-tx {
  font-size: var(--f-fs-xs);
  line-height: 1.4;
  letter-spacing: .02em;
  overflow-wrap: anywhere;
}
@keyframes f-mv-hint {
  0%, 100% { transform: translateY(0); opacity: .55; }
  50% { transform: translateY(-6px); opacity: 1; }
}

/* Bottom-Sheet */
.f-sheet {
  --f-panel-pad-x: 22px;
  position: absolute;
  inset: 0;
  z-index: 3;
  background: var(--f-scrim);
}
.f-sheet[hidden] { display: none; }
.f-sheet__scrim {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.f-sheet__body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-height: 72%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0 calc(var(--f-panel-pad-x) + env(safe-area-inset-right)) calc(28px + env(safe-area-inset-bottom)) calc(var(--f-panel-pad-x) + env(safe-area-inset-left));
  background: var(--f-bg-sheet);
  border-top: 1px solid var(--f-line-float);
  border-radius: var(--f-radius-sheet) var(--f-radius-sheet) 0 0;
  box-shadow: var(--f-shadow-sheet);
  scrollbar-width: thin;
  scrollbar-color: var(--f-line-control) transparent;
  animation: f-sheet-in var(--f-dur-sheet) var(--f-ease-out);
}
.f-sheet__body > * { flex: none; }
@keyframes f-sheet-in { from { transform: translateY(100%); } to { transform: none; } }
.f-sheet__handle {
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  width: 64px;
  height: var(--f-hit);
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.f-sheet__handle:focus-visible { outline-offset: -2px; }
.f-sheet__grip {
  display: block;
  width: 40px;
  height: 4px;
  border-radius: var(--f-radius-pill);
  background: var(--f-handle);
}
.f-sheet__head {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: -10px; /* Griff (44 px) rückt dicht an den Kopf */
}
.f-sheet__kicker {
  font: 400 var(--f-fs-2xs)/1.4 var(--f-font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--f-text-muted);
}
.f-sheet__title {
  margin: 0;
  font: 500 var(--f-fs-xl)/1.15 var(--f-font-sans);
  letter-spacing: var(--f-ls-tight);
  color: var(--f-text-title);
  overflow-wrap: anywhere;
}
.f-sheet__date {
  margin: 0;
  font-size: var(--f-fs-sm);
  color: var(--f-text-dim);
}
.f-sheet .f-info { border-top: 1px solid var(--f-line); }
.f-sheet .f-info__section {
  padding-left: 0;
  padding-right: 0;
  padding-top: 16px;
  padding-bottom: 16px;
}
.f-sheet .f-info__dl {
  grid-template-columns: minmax(0, 96px) minmax(0, 1fr);
  gap: 10px 12px;
}

@media (prefers-reduced-motion: reduce) {
  .f-stage__bgimg { transition: none; }
  .f-sheet__body { animation: none; }
  .f-mv__img { transition: none; }
  .f-mv__hint-ic svg { animation: none; }
}