@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400;9..144,500;9..144,600&family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

:root {
  --bg: #1A1817;
  --surface: #241F1D;
  --border: #3A3431;
  --paper: #EFE8DD;
  --text: #F2ECE3;
  --text-muted: #96897F;
  --accent: #D5512E;
  --accent-soft: rgba(213, 81, 46, 0.14);
  --display: 'Fraunces', serif;
  --mono: 'IBM Plex Mono', monospace;
  --body: 'IBM Plex Sans', sans-serif;
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  min-height: 100vh;
}

::selection { background: var(--accent); color: var(--bg); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
  color: inherit;
}
button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.app {
  position: relative;
  z-index: 1;
  max-width: 1140px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

@media (min-width: 640px) {
  .app { padding: 3.5rem 2rem 5rem; }
}

.fade-in { animation: fadeIn 0.45s ease-out; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

.view[hidden] { display: none; }

/* ---------- Typography ---------- */
.display-title {
  font-family: var(--display);
  font-weight: 300;
  font-size: 2.75rem;
  line-height: 1;
  letter-spacing: -0.01em;
}
@media (min-width: 640px) {
  .display-title { font-size: 3.75rem; }
}
.meta-line {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.75rem;
}
.empty-hint {
  margin-top: 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}
.footnote {
  margin-top: 3rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.6;
  text-align: center;
}

/* ---------- Home ---------- */
.home-header { margin-bottom: 2.5rem; }
.home-header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}
.lock-btn {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: color 0.2s, border-color 0.2s;
}
.lock-btn:hover { color: var(--text); }
.lock-btn.unlocked { color: var(--accent); border-color: var(--accent); }

/* ---------- Site navigation (Hamburger-Menü) ---------- */
.site-nav {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 50;
}
@media (min-width: 640px) {
  .site-nav { top: 1.75rem; right: 2rem; }
}
.nav-toggle {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s, color 0.2s;
}
.nav-toggle:hover { border-color: var(--text-muted); }
.nav-toggle.open { border-color: var(--accent); color: var(--accent); }

.nav-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 160px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.nav-menu[hidden] { display: none; }
.nav-item {
  padding: 0.85rem 1.1rem;
  text-align: left;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  transition: background 0.15s, color 0.15s;
}
.nav-item:last-child { border-bottom: none; }
.nav-item:hover { background: var(--accent-soft); color: var(--text); }
.nav-item.active { color: var(--accent); }

/* ---------- Text pages (Info / Kontakt) ---------- */
.text-page {
  max-width: 560px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
}
.text-page p { margin-bottom: 1rem; }
.text-page p:last-child { margin-bottom: 0; }
.text-page-small {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: none;
}
.text-link {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent-soft);
  text-underline-offset: 2px;
  transition: text-decoration-color 0.2s;
}
.text-link:hover { text-decoration-color: var(--accent); }

/* ---------- Footer / Impressum ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  padding: 1.5rem 0 2.5rem;
}
.footer-link {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.65;
  transition: opacity 0.2s;
}
.footer-link:hover { opacity: 1; }
.impressum-box {
  max-width: 420px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}
/* Bilder-Grid innerhalb einer Mappe: alle Kacheln haben die gleiche Höhe,
   die Breite richtet sich nach dem jeweiligen Seitenverhältnis des Bildes
   (klassisches "Justified Gallery"-Layout statt starrer Quadrate). */
.grid-images {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.6rem;
}

/* ---------- Folder card ---------- */
.folder-card { display: block; }

.folder-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  display: block;
  text-align: left;
}
.folder-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: transform 0.5s ease, opacity 0.4s ease;
}
.folder-thumb img.loaded {
  opacity: 1;
}
.folder-card:hover .folder-thumb img { transform: scale(1.05); }

.folder-thumb-empty {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--text-muted);
}
.folder-thumb-empty span {
  font-family: var(--mono);
  font-size: 0.75rem;
}

.tag-num {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.1rem 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  background: rgba(26,24,23,0.72);
  color: var(--text);
  border: 1px solid var(--border);
}

.folder-meta-row {
  margin-top: 0.75rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}
.folder-name {
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.15rem;
  color: var(--text);
  cursor: text;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.folder-count {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}
.folder-actions {
  display: flex;
  gap: 0.25rem;
  opacity: 0;
  transition: opacity 0.2s;
}
.folder-card:hover .folder-actions,
.folder-card:focus-within .folder-actions { opacity: 1; }
.icon-btn {
  padding: 0.35rem;
  color: var(--text-muted);
  transition: opacity 0.2s;
}
.icon-btn:hover { opacity: 0.6; }

.name-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--accent);
  outline: none;
  color: var(--text);
  font-family: var(--display);
  padding-bottom: 0.15rem;
}
.folder-name-input { font-size: 1.15rem; }
.gallery-title-input { font-size: 2.75rem; font-weight: 300; }
@media (min-width: 640px) { .gallery-title-input { font-size: 3.75rem; } }

/* ---------- New folder card ---------- */
.new-folder-card {
  aspect-ratio: 1 / 1;
  border: 2px dashed var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--text-muted);
  background: transparent;
  text-align: center;
}
.new-folder-card span { font-family: var(--mono); font-size: 0.85rem; }
.new-folder-card.active { border-color: var(--accent); gap: 0.75rem; padding: 1.5rem; }
.new-folder-card.active .new-folder-num { font-family: var(--mono); font-size: 0.72rem; }
.new-folder-input {
  width: 100%;
  max-width: 220px;
  text-align: center;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  outline: none;
  color: var(--text);
  font-family: var(--display);
  font-size: 1.25rem;
  padding: 0.25rem 0;
}
.new-folder-actions { display: flex; gap: 0.5rem; }

/* ---------- Buttons ---------- */
.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 0.85rem;
  transition: opacity 0.2s;
}
.btn-accent:hover { opacity: 0.9; }
.btn-ghost {
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.85rem;
}
.btn-small {
  padding: 0.3rem 0.7rem;
  font-family: var(--mono);
  font-size: 0.72rem;
}

/* ---------- Gallery view ---------- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  transition: opacity 0.2s;
}
.back-link:hover { opacity: 0.7; }

.gallery-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}
.editable { cursor: text; display: inline-flex; align-items: center; gap: 0.6rem; }
.editable .pencil-hint { opacity: 0; transition: opacity 0.2s; }
.editable:hover .pencil-hint { opacity: 0.5; }

.dropzone {
  border: 2px dashed var(--border);
  margin-bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  color: var(--text-muted);
}
.dropzone.empty { padding: 4rem 1.5rem; }
.dropzone.dragover { border-color: var(--accent); background: var(--accent-soft); }
.dropzone-text { margin-top: 0.75rem; font-family: var(--mono); font-size: 0.85rem; }
.upload-progress { margin-top: 0.5rem; font-family: var(--mono); font-size: 0.78rem; color: var(--accent); }

/* ---------- Image tile ---------- */
.image-tile {
  position: relative;
  /* Fallback-Höhe, bevor das Justified-Gallery-Skript (app.js) die
     tatsächliche Höhe/Breite pro Zeile berechnet und per Inline-Style
     setzt. Verhindert ein kurzes "Zusammenklappen" des Grids, falls JS
     minimal verzögert startet. */
  height: 220px;
}
@media (min-width: 640px) {
  .image-tile { height: 260px; }
}
@media (min-width: 960px) {
  .image-tile { height: 300px; }
}
.image-thumb {
  position: relative;
  height: 100%;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  display: block;
  content-visibility: auto;
  contain-intrinsic-size: 300px 220px;
}
.image-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.3s ease;
}
.image-thumb img.loaded {
  opacity: 1;
}
.image-tile:hover .image-thumb img { transform: scale(1.05); }

.cover-badge {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  color: var(--accent);
}

.tile-actions {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  display: flex;
  gap: 0.25rem;
  opacity: 0;
  transition: opacity 0.2s;
}
.image-tile:hover .tile-actions { opacity: 1; }
.tile-actions button {
  padding: 0.35rem;
  background: rgba(26,24,23,0.75);
  color: var(--text);
}

/* ---------- Loading ---------- */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 5rem 0;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.85rem;
}
.spin { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(15,13,12,0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.lightbox[hidden] { display: none; }
@media (min-width: 640px) { .lightbox { padding: 2.5rem; } }

.lb-image {
  max-height: 80vh;
  max-width: 100%;
  object-fit: contain;
  border: 4px solid var(--paper);
  opacity: 1;
  transition: opacity 0.35s ease;
}
.lb-image-hidden {
  opacity: 0;
}
.lb-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  padding: 3rem;
  opacity: 0;
  transition: opacity 0.2s ease 0.15s;
}
.lb-spinner.lb-spinner-visible {
  opacity: 1;
}
.lb-spinner[hidden] { display: none; }
.lb-caption {
  margin-top: 1rem;
  text-align: center;
  font-family: var(--mono);
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 0 1rem;
  /* Feste Mindesthöhe reserviert immer Platz, ob Text drin ist oder
     nicht — verhindert, dass das Bild beim Wechseln zwischen Bildern
     nach unten "springt", während die Caption kurz leer ist. */
  min-height: 2.4rem;
  opacity: 1;
  transition: opacity 0.2s ease;
}
.lb-caption-hidden {
  opacity: 0;
}
.lb-caption .lb-index { color: var(--accent); }
.lb-caption .lb-name {
  display: block;
  font-size: 0.72rem;
  margin-top: 0.25rem;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@media (min-width: 640px) {
  .lb-caption .lb-name { display: inline; margin-left: 0.75rem; margin-top: 0; }
}

.lb-close, .lb-delete, .lb-prev, .lb-next {
  position: absolute;
  color: var(--text);
  padding: 0.5rem;
  transition: opacity 0.2s;
}
.lb-close:hover, .lb-delete:hover, .lb-prev:hover, .lb-next:hover { opacity: 0.7; }
.lb-close { top: 1rem; right: 1rem; }
.lb-delete { top: 1rem; left: 1rem; color: var(--text-muted); }
.lb-prev { left: 0.5rem; top: 50%; transform: translateY(-50%); }
.lb-next { right: 0.5rem; top: 50%; transform: translateY(-50%); }
@media (min-width: 640px) {
  .lb-prev { left: 1.5rem; }
  .lb-next { right: 1.5rem; }
}

/* ---------- Confirm dialog ---------- */
.confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(15,13,12,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.confirm-overlay[hidden] { display: none; }
.confirm-box {
  max-width: 360px;
  width: 100%;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
}
.confirm-box h3 {
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}
.confirm-box p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}
.confirm-actions { display: flex; justify-content: flex-end; gap: 0.5rem; }

.login-input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  margin-bottom: 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.9rem;
}
.login-input:focus { border-color: var(--accent); }
.login-error {
  color: var(--accent);
  font-size: 0.8rem;
  margin-bottom: 1rem;
}

.view-only-hint {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.7;
  margin-top: 0.5rem;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  max-width: 300px;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--accent);
  color: var(--text);
  font-size: 0.85rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  z-index: 80;
}
.toast[hidden] { display: none; }
.toast button { color: var(--text-muted); flex-shrink: 0; }