/* =====================================================================
   3dit WebGL Scatter Gallery
   Zentrale Stellschrauben — überschreibbar unter
   Design → Customizer → Zusätzliches CSS, z. B.:
     .tdg-gallery { --gallery-bg: #111; --gallery-ink: #eee; }
   ===================================================================== */
.tdg-gallery {
  --gallery-bg: #efeee8;
  --gallery-ink: #141414;
  --pill-bg: rgba(239, 238, 232, 0.7);
  --pill-border: rgba(20, 20, 20, 0.25);
  position: relative;
  width: 100%;
  height: var(--tdg-height, 100vh);
  background: var(--gallery-bg);
  overflow: hidden;
  cursor: grab;
  touch-action: none;
  font-family: -apple-system, "Helvetica Neue", Arial, sans-serif;
}
.tdg-gallery.dragging { cursor: grabbing; }
.tdg-gallery.reader-open { cursor: default; }
.tdg-canvas { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }

/* Filter und Legende weichen zurück, sobald der Reader offen ist */
.tdg-gallery.reader-open .tdg-filters,
.tdg-gallery.reader-open .tdg-controls {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

/* =====================================================================
   STEUERUNGS-LEGENDE
   ===================================================================== */
.tdg-controls {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 18px;
  z-index: 3;
  color: var(--gallery-ink);
  opacity: 0.45;
  pointer-events: none;
  transition: opacity 0.5s ease;
  font-size: 11px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.tdg-controls .ctrl { display: flex; align-items: center; gap: 6px; }
.tdg-controls svg { width: 15px; height: 15px; flex: 0 0 auto; }

/* =====================================================================
   KATEGORIEFILTER
   ===================================================================== */
.tdg-filters {
  position: absolute;
  top: 24px;
  left: 24px;
  right: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  z-index: 3;
}
.filter-pill {
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 0.03em;
  padding: 7px 14px;
  border-radius: 100px;
  border: 1px solid var(--pill-border);
  background: var(--pill-bg);
  -webkit-backdrop-filter: blur(6px); /* Safari */
  backdrop-filter: blur(6px);
  color: var(--gallery-ink);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.filter-pill:hover { border-color: rgba(20, 20, 20, 0.5); }
.filter-pill.active { background: #141414; color: #efeee8; border-color: #141414; }

/* =====================================================================
   INLINE-READER — der Beitrag öffnet sich im Widget, nicht auf neuer Seite
   ===================================================================== */
.tdg-reader {
  position: absolute;
  inset: 0;
  z-index: 10;
  background: var(--gallery-bg);
  color: var(--gallery-ink);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.tdg-reader.open { opacity: 1; }
.tdg-reader[hidden] { display: none; }

.tdg-reader-scroll {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.tdg-reader-close {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 2;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--pill-border);
  background: var(--pill-bg);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--gallery-ink);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}
.tdg-reader-close:hover { background: var(--gallery-ink); color: var(--gallery-bg); }
.tdg-reader-close:focus-visible { outline: 2px solid currentColor; outline-offset: 2px; }
.tdg-reader-close svg { width: 16px; height: 16px; }

/* Einheitliche, kompakte Beitrags-Darstellung.
   Dieselben Klassen nutzt das Single-Post-Template — dadurch sieht ein
   direkt aufgerufener Beitrag exakt aus wie der Reader. */
.tdg-article {
  max-width: 1140px;
  margin: 0 auto;
  padding: 76px 32px 88px;
  transform: translateY(14px);
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.tdg-reader.open .tdg-article { transform: translateY(0); }

.tdg-reader-title,
.tdg-article h1 {
  font-size: clamp(24px, 3.4vw, 42px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
}
.tdg-reader-meta {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.5;
  margin-bottom: 30px;
}

.tdg-reader-lead:empty { display: none; }
.tdg-reader-lead img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
  margin-bottom: 34px;
}

.tdg-reader-body {
  max-width: 68ch;
  margin: 0 0 38px;
  font-size: 15px;
  line-height: 1.68;
  opacity: 0.86;
}
.tdg-reader-body[hidden] { display: none; }
.tdg-reader-body > * { margin: 0 0 1em; }
.tdg-reader-body > *:last-child { margin-bottom: 0; }
.tdg-reader-body h3 {
  font-size: 17px;
  font-weight: 600;
  opacity: 1;
  margin-top: 1.7em;
  letter-spacing: -0.005em;
}
.tdg-reader-body ul { padding-left: 1.15em; }
.tdg-reader-body li { margin-bottom: 0.35em; }

/* Medienraster — 2-3 Spalten, je nach Menge des Beitragsinhalts.
   --tdg-cols setzt das JS bzw. PHP passend zur Anzahl der Medien. */
.tdg-reader-media {
  display: grid;
  grid-template-columns: repeat(var(--tdg-cols, 3), minmax(0, 1fr));
  gap: 16px;
}
.tdg-reader-media[hidden] { display: none; }

.tdg-media-cell {
  margin: 0;
  min-width: 0;
  border-radius: 4px;
  overflow: hidden;
  background: rgba(20, 20, 20, 0.05);
}
.tdg-media-cell img,
.tdg-media-cell video {
  display: block;
  width: 100%;
  height: auto;
}
/* Videos/Embeds laufen immer über die volle Rasterbreite — in einer
   1-Spalten-Ansicht würde ein "span 2" sonst eine Geisterspalte erzeugen. */
.tdg-media-embed {
  position: relative;
  aspect-ratio: 16 / 9;
  grid-column: 1 / -1;
}
.tdg-media-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.tdg-reader-permalink {
  display: inline-block;
  margin-top: 40px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: inherit;
  opacity: 0.55;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: opacity 0.2s ease;
}
.tdg-reader-permalink:hover { opacity: 1; }
.tdg-reader-permalink[hidden] { display: none; }

/* =====================================================================
   RESPONSIV
   ===================================================================== */
@media (max-width: 1024px) {
  .tdg-filters { top: 16px; left: 16px; right: 16px; gap: 6px; }
  .filter-pill { font-size: 11px; padding: 6px 12px; }

  .tdg-article { padding: 68px 24px 72px; }
  .tdg-reader-media {
    grid-template-columns: repeat(var(--tdg-cols-tablet, 2), minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .tdg-controls { gap: 12px; font-size: 10px; bottom: 14px; }
  .tdg-controls svg { width: 13px; height: 13px; }

  .tdg-filters {
    top: 10px; left: 0; right: 0;
    gap: 5px;
    padding: 0 10px;
    /* Bei vielen Kategorien horizontal scrollen statt umbrechen */
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .tdg-filters::-webkit-scrollbar { display: none; }
  .filter-pill { font-size: 11px; padding: 6px 12px; flex: 0 0 auto; }

  .tdg-reader-close { top: 12px; right: 12px; width: 36px; height: 36px; }
  .tdg-article { padding: 62px 16px 56px; }
  .tdg-reader-meta { margin-bottom: 22px; }
  .tdg-reader-lead img { margin-bottom: 24px; }
  .tdg-reader-body { font-size: 14px; margin-bottom: 28px; }
  .tdg-reader-media { grid-template-columns: 1fr; gap: 12px; }
}

/* Sehr flache Fenster (Handy quer) */
@media (max-height: 480px) {
  .tdg-controls { bottom: 8px; }
  .tdg-article { padding-top: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  .tdg-reader,
  .tdg-article { transition: none; }
  .tdg-article { transform: none; }
}

/* =====================================================================
   EINHEITLICHE BEITRAGSSEITE (Direktaufruf, Single-Post-Template)
   Gleiche Optik wie der Reader, nur ohne Overlay-Rahmen.
   ===================================================================== */
.tdg-single {
  --gallery-bg: #efeee8;
  --gallery-ink: #141414;
  --pill-border: rgba(20, 20, 20, 0.25);
  background: var(--gallery-bg);
  color: var(--gallery-ink);
  font-family: -apple-system, "Helvetica Neue", Arial, sans-serif;
}
.tdg-single .tdg-article { transform: none; padding-top: 56px; }
.tdg-single .tdg-reader-back {
  display: inline-block;
  margin-bottom: 26px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: inherit;
  opacity: 0.55;
  text-decoration: none;
}
.tdg-single .tdg-reader-back:hover { opacity: 1; }