/* Fotorex — single stylesheet. CSS custom properties live at :root so the
   whole look can be re-themed by editing one block. */

:root {
  --color-bg: #f9f7f4;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #6b6b6b;
  --color-accent: #d4a574;
  --color-accent-dark: #b88a55;
  --color-border: #e3ddd4;
  --color-danger: #c0392b;
  --color-error-bg: #fdecea;
  --color-success: #2e7d32;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.18);
  --transition: 0.2s ease;

  --tile-min: 180px;
  --album-min: 240px;
}

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

html, body { height: 100%; }

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--color-accent-dark); }

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

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* Header & footer */

.site-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}
.site-title {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge {
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.site-footer {
  margin-top: auto;
  padding: 1rem 2rem;
  text-align: center;
  color: var(--color-muted);
  border-top: 1px solid var(--color-border);
}

.container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  flex: 1;
}

.page-title {
  font-size: 1.75rem;
  margin-bottom: 1.25rem;
  font-weight: 500;
}

.back-link {
  display: inline-block;
  margin-bottom: 0.75rem;
  color: var(--color-muted);
}

.muted { color: var(--color-muted); }
.empty { color: var(--color-muted); padding: 2rem 0; text-align: center; }
.error { color: var(--color-danger); }

/* Grids */

.grid {
  display: grid;
  gap: 1rem;
}
.grid-albums {
  grid-template-columns: repeat(auto-fill, minmax(var(--album-min), 1fr));
}
.grid-media {
  grid-template-columns: repeat(auto-fill, minmax(var(--tile-min), 1fr));
}

/* Album cards */

.card {
  display: block;
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}
.card-img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #ddd;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.card-label {
  padding: 0.75rem 1rem;
  font-weight: 500;
}

/* Media tiles */

.tile {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: #ddd;
  cursor: pointer;
  transition: transform var(--transition);
}
.tile:hover { transform: scale(1.02); }
.tile img, .tile video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.play-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

/* Lightbox */

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.lightbox.open { display: flex; }
.lb-stage {
  max-width: 95vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lb-stage img,
.lb-stage video {
  max-width: 95vw;
  max-height: 90vh;
  object-fit: contain;
}
.lb-close,
.lb-prev,
.lb-next {
  position: absolute;
  color: #fff;
  font-size: 2rem;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transition: background var(--transition);
}
.lb-close:hover, .lb-prev:hover, .lb-next:hover {
  background: rgba(255, 255, 255, 0.25);
}
.lb-close { top: 1rem; right: 1rem; }
.lb-prev  { left: 1rem; top: 50%; transform: translateY(-50%); }
.lb-next  { right: 1rem; top: 50%; transform: translateY(-50%); }
.lb-caption {
  position: absolute;
  bottom: 1rem;
  left: 0;
  right: 0;
  text-align: center;
  color: #fff;
  font-size: 0.875rem;
  opacity: 0.8;
}

/* Admin: auth */

.auth-box {
  max-width: 360px;
  margin: 4rem auto;
  background: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.auth-box h1 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
  font-weight: 500;
}
.auth-box form { display: flex; flex-direction: column; gap: 0.75rem; }
.auth-box input[type="password"] {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font: inherit;
}
.auth-box button {
  padding: 0.6rem 1rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: background var(--transition);
}
.auth-box button:hover { background: var(--color-accent-dark); }
.auth-box button:disabled { opacity: 0.6; cursor: not-allowed; }

/* Admin: tabs */

.tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
  align-items: center;
}
.tab {
  padding: 0.6rem 1rem;
  border-bottom: 2px solid transparent;
  color: var(--color-muted);
  font-weight: 500;
  transition: color var(--transition), border-color var(--transition);
}
.tab:hover { color: var(--color-text); }
.tab.active {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}
.logout {
  margin-left: auto;
  color: var(--color-muted);
  font-size: 0.875rem;
}
.logout:hover { color: var(--color-danger); }

/* Admin: upload */

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
}
.form-row label { font-weight: 500; }
.form-row select,
.form-row input[type="text"],
.form-row input {
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font: inherit;
  min-width: 200px;
}
.link-btn {
  color: var(--color-accent-dark);
  font-size: 0.875rem;
}
.link-btn:hover { text-decoration: underline; }

.drop-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 3rem 1rem;
  text-align: center;
  background: var(--color-surface);
  transition: border-color var(--transition), background var(--transition);
}
.drop-zone:hover,
.drop-zone:focus-visible,
.drop-zone.over {
  border-color: var(--color-accent);
  background: #fff8ee;
  outline: none;
}

.upload-list {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.upload-item {
  display: grid;
  grid-template-columns: 1fr 160px auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}
.upload-item.done { border-color: var(--color-success); }
.upload-item.error { border-color: var(--color-danger); background: var(--color-error-bg); }
.upload-item .up-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.upload-item progress { width: 100%; height: 0.7rem; }
.upload-item .up-status { font-size: 0.85rem; color: var(--color-muted); }
.upload-item.done .up-status { color: var(--color-success); }
.upload-item.error .up-status { color: var(--color-danger); }

/* Admin: manage */

.album-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  padding: 0.5rem 1rem;
}
.album-section summary {
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  padding: 0.5rem 0;
  list-style: none;
}
.album-section summary::-webkit-details-marker { display: none; }
.album-section summary::before {
  content: '▸';
  color: var(--color-muted);
  transition: transform var(--transition);
  display: inline-block;
}
.album-section[open] summary::before { transform: rotate(90deg); }
.album-section .album-name { flex: 1; font-weight: 500; }

.album-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border);
  margin-top: 0.25rem;
}
.manage-tile {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #ddd;
}
.manage-tile img,
.manage-tile video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tile-delete {
  position: absolute;
  top: 0.25rem;
  right: 0.25rem;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  font-size: 1.1rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.tile-delete:hover { background: var(--color-danger); }

button.danger {
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  font-size: 0.85rem;
  background: transparent;
  transition: background var(--transition), color var(--transition);
}
button.danger:hover {
  background: var(--color-danger);
  color: #fff;
}

/* Responsive */

@media (max-width: 640px) {
  .container { padding: 1rem; }
  .site-header { padding: 0.75rem 1rem; }
  :root { --tile-min: 130px; --album-min: 170px; }
  .upload-item { grid-template-columns: 1fr; }
  .upload-item progress { width: 100%; }
}