/* ============================================
   LightBox — Dark Theme CSS
   ============================================ */

/* --- CSS Variables --- */
:root {
  /* Backgrounds */
  --bg-base:       #0b0b0f;
  --bg-card:       #131318;
  --bg-card-hover: #181820;
  --bg-input:      #1c1c25;
  --bg-thumb:      #1a1a22;

  /* Borders */
  --border:        #21212e;
  --border-soft:   #1c1c28;

  /* Text */
  --text:          #dddde8;
  --text-muted:    #7070a0;
  --text-faint:    #3a3a55;

  /* Accent */
  --accent:        #7c7cf8;
  --accent-hover:  #a0a0fc;
  --accent-dim:    rgba(124, 124, 248, 0.11);
  --accent-border: rgba(124, 124, 248, 0.28);

  /* Status */
  --success:       #34d399;
  --success-dim:   rgba(52, 211, 153, 0.10);
  --danger:        #f87171;
  --danger-dim:    rgba(248, 113, 113, 0.10);
  --warning:       #fbbf24;
  --warning-dim:   rgba(251, 191, 36, 0.10);
  --info:          #60a5fa;
  --info-dim:      rgba(96, 165, 250, 0.10);

  /* Media type accent colors */
  --color-video:   #818cf8;
  --color-audio:   #34d399;
  --color-image:   #60a5fa;
  --color-pdf:     #f87171;
  --color-blob:    #a78bfa;

  /* Layout */
  --radius:        8px;
  --radius-sm:     5px;
  --radius-lg:     12px;

  /* Typography */
  --font:      -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SFMono-Regular', 'JetBrains Mono', Consolas, monospace;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.35);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.55);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.70);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; }

html { height: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background-color: var(--bg-base);
  color: var(--text);
  padding-top: 58px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text);
  font-weight: 600;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s;
}
a:hover { color: var(--accent-hover); }

*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(124,124,248,0.2);
}

main.container.my-4 { flex-grow: 1; }

/* ============================================
   Navbar
   ============================================ */
.lb-navbar {
  background-color: rgba(11, 11, 15, 0.94) !important;
  border-bottom: 1px solid var(--border) !important;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  min-height: 58px;
  padding: 0;
}
.lb-navbar .container { padding: 0 1rem; }

/* Override Bootstrap's --bs-nav-link-color so all text is light */
.lb-navbar { --bs-navbar-color: #c4c4d8; --bs-navbar-hover-color: #ffffff; --bs-navbar-active-color: #ffffff; }

.lb-navbar .navbar-brand {
  color: #ffffff !important;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  padding: 0.5rem 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.lb-navbar .navbar-brand:hover { color: #ffffff !important; text-decoration: none; opacity: 0.9; }
.lb-navbar .navbar-brand .lb-logo { font-size: 1.2em; }

.lb-navbar .nav-link {
  color: #c4c4d8 !important;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.45rem 0.7rem !important;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background-color 0.15s;
}
.lb-navbar .nav-link:hover, .lb-navbar .nav-link.active {
  color: #ffffff !important;
  background-color: rgba(255,255,255,0.08);
  text-decoration: none;
}
.lb-navbar .nav-link.dropdown-toggle { color: #c4c4d8 !important; }

.lb-navbar .dropdown-menu {
  background-color: #1c1c26;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 175px;
  padding: 0.3rem;
  margin-top: 0.3rem;
}
.lb-navbar .dropdown-item {
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  padding: 0.45rem 0.75rem;
  transition: background-color 0.1s, color 0.1s;
}
.lb-navbar .dropdown-item:hover {
  background-color: rgba(255,255,255,0.07);
  color: var(--text);
}

.lb-navbar .navbar-toggler {
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.3rem 0.55rem;
  border-radius: var(--radius-sm);
}
.lb-navbar .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(200,200,220,0.75)' stroke-linecap='round' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.lb-navbar .navbar-collapse {
  background-color: var(--bg-base);
  border-radius: 0 0 var(--radius) var(--radius);
  border: 1px solid var(--border);
  border-top: none;
  padding: 0.5rem;
}
@media (min-width: 992px) {
  .lb-navbar .navbar-collapse {
    background: transparent;
    border: none;
    padding: 0;
  }
}

/* Upload CTA button */
.btn-nav-upload {
  background-color: var(--accent);
  color: #fff !important;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.9rem !important;
  border-radius: 20px;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: background-color 0.15s, box-shadow 0.15s, transform 0.1s;
  text-decoration: none !important;
}
.btn-nav-upload:hover {
  background-color: var(--accent-hover);
  color: #fff !important;
  box-shadow: 0 0 14px rgba(124,124,248,0.4);
  transform: translateY(-1px);
}

/* ============================================
   Footer
   ============================================ */
.lb-footer {
  font-size: 0.8rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
  background-color: var(--bg-base);
  color: var(--text-faint);
  text-align: center;
}
.lb-footer a { color: var(--text-muted); }
.lb-footer a:hover { color: var(--text); }

/* ============================================
   Flash Messages
   ============================================ */
.flash-messages-container { padding-top: 58px; }

.alert {
  border-radius: var(--radius);
  border-width: 1px;
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  border-left-width: 4px;
}
.alert-success {
  background-color: var(--success-dim);
  border-color: rgba(52,211,153,0.3);
  border-left-color: var(--success);
  color: #6ee7b7;
}
.alert-danger {
  background-color: var(--danger-dim);
  border-color: rgba(248,113,113,0.3);
  border-left-color: var(--danger);
  color: #fca5a5;
}
.alert-warning {
  background-color: var(--warning-dim);
  border-color: rgba(251,191,36,0.3);
  border-left-color: var(--warning);
  color: #fde68a;
}
.alert-info {
  background-color: var(--info-dim);
  border-color: rgba(96,165,250,0.3);
  border-left-color: var(--info);
  color: #bfdbfe;
}
.alert .btn-close { filter: invert(1) opacity(0.45); }

/* ============================================
   Cards
   ============================================ */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  margin-bottom: 1.5rem;
}
.card:hover {
  border-color: var(--accent-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card-header {
  background-color: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  padding: 0.9rem 1.25rem;
}
.card-header.bg-primary { background-color: var(--accent) !important; color: #fff !important; }
.card-header.bg-info    { background-color: rgba(96,165,250,0.12) !important; color: var(--info) !important; }
.card-header.bg-white   { background-color: rgba(255,255,255,0.03) !important; }
.card-body  { color: var(--text); }
.card-footer {
  background-color: rgba(255,255,255,0.02);
  border-top: 1px solid var(--border);
}
.card-title { color: var(--text); font-weight: 600; }
.card-text  { color: var(--text-muted); font-size: 0.875rem; }

/* ============================================
   Buttons
   ============================================ */
.btn {
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.45rem 0.9rem;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  box-shadow: 0 2px 12px rgba(124,124,248,0.35);
}

.btn-secondary {
  background-color: rgba(255,255,255,0.07);
  border-color: var(--border);
  color: var(--text);
}
.btn-secondary:hover {
  background-color: rgba(255,255,255,0.11);
  border-color: rgba(255,255,255,0.14);
  color: var(--text);
}

.btn-success {
  background-color: rgba(52,211,153,0.14);
  border-color: rgba(52,211,153,0.3);
  color: var(--success);
}
.btn-success:hover {
  background-color: rgba(52,211,153,0.24);
  border-color: rgba(52,211,153,0.5);
  color: var(--success);
}

.btn-danger {
  background-color: rgba(248,113,113,0.12);
  border-color: rgba(248,113,113,0.28);
  color: var(--danger);
}
.btn-danger:hover {
  background-color: rgba(248,113,113,0.22);
  border-color: rgba(248,113,113,0.48);
  color: var(--danger);
}

.btn-warning {
  background-color: rgba(251,191,36,0.12);
  border-color: rgba(251,191,36,0.28);
  color: var(--warning);
}
.btn-warning:hover {
  background-color: rgba(251,191,36,0.22);
  color: var(--warning);
}

.btn-info {
  background-color: rgba(96,165,250,0.12);
  border-color: rgba(96,165,250,0.28);
  color: var(--info);
}
.btn-info:hover {
  background-color: rgba(96,165,250,0.22);
  color: var(--info);
}

.btn-light {
  background-color: rgba(255,255,255,0.07);
  border-color: var(--border);
  color: var(--text-muted);
}
.btn-light:hover {
  background-color: rgba(255,255,255,0.11);
  color: var(--text);
}

.btn-outline-primary {
  border-color: rgba(124,124,248,0.4);
  color: var(--accent);
  background: transparent;
}
.btn-outline-primary:hover {
  background-color: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-hover);
}

.btn-outline-secondary {
  border-color: var(--border);
  color: var(--text-muted);
  background: transparent;
}
.btn-outline-secondary:hover {
  background-color: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.14);
  color: var(--text);
}

.btn-outline-success {
  border-color: rgba(52,211,153,0.35);
  color: var(--success);
  background: transparent;
}
.btn-outline-success:hover {
  background-color: var(--success-dim);
  border-color: var(--success);
  color: var(--success);
}

.btn-outline-danger {
  border-color: rgba(248,113,113,0.32);
  color: var(--danger);
  background: transparent;
}
.btn-outline-danger:hover {
  background-color: var(--danger-dim);
  border-color: var(--danger);
  color: var(--danger);
}

.btn-outline-warning {
  border-color: rgba(251,191,36,0.32);
  color: var(--warning);
  background: transparent;
}
.btn-outline-warning:hover {
  background-color: var(--warning-dim);
  border-color: var(--warning);
  color: var(--warning);
}

.btn-outline-info {
  border-color: rgba(96,165,250,0.32);
  color: var(--info);
  background: transparent;
}
.btn-outline-info:hover {
  background-color: var(--info-dim);
  border-color: var(--info);
  color: var(--info);
}

.btn-link { color: var(--accent); background: none; border: none; padding: 0; }
.btn-link:hover { color: var(--accent-hover); }

/* ============================================
   Forms
   ============================================ */
.form-control, .form-select {
  background-color: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  padding: 0.5rem 0.75rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-control:focus, .form-select:focus {
  background-color: var(--bg-input);
  border-color: var(--accent);
  color: var(--text);
  box-shadow: 0 0 0 3px rgba(124,124,248,0.14);
  outline: none;
}
.form-control::placeholder { color: var(--text-faint); }
.form-control.is-invalid { border-color: var(--danger); }

.form-label {
  color: var(--text-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}
.form-text   { color: var(--text-muted); font-size: 0.78rem; }
.form-check-label { color: var(--text-muted); font-size: 0.875rem; }

.form-check-input {
  background-color: var(--bg-input);
  border: 1px solid var(--border);
  width: 1em;
  height: 1em;
}
.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}
.form-select option { background-color: #1c1c25; color: var(--text); }
textarea.form-control { resize: vertical; min-height: 90px; }

/* ============================================
   Badges
   ============================================ */
.badge.bg-secondary { background-color: rgba(255,255,255,0.09) !important; color: var(--text-muted) !important; }
.badge.bg-primary   { background-color: var(--accent-dim) !important; color: var(--accent) !important; }
.badge.bg-success   { background-color: rgba(52,211,153,0.18) !important; color: var(--success) !important; }
.badge.bg-danger    { background-color: rgba(248,113,113,0.18) !important; color: var(--danger) !important; }
.badge.bg-warning   { background-color: rgba(251,191,36,0.18) !important; color: var(--warning) !important; }
.badge.bg-info      { background-color: rgba(96,165,250,0.18) !important; color: var(--info) !important; }
.badge.bg-light     { background-color: rgba(255,255,255,0.08) !important; color: var(--text-muted) !important; }
.badge.bg-dark      { background-color: rgba(0,0,0,0.35) !important; color: var(--text-muted) !important; }

/* Spinner */
.spinner-border.text-primary { color: var(--accent) !important; }
.spinner-border.text-light   { color: rgba(255,255,255,0.8) !important; }

/* ============================================
   Bootstrap overrides for dark bg utilities
   ============================================ */
.bg-light  { background-color: rgba(255,255,255,0.04) !important; color: var(--text) !important; }
.bg-white  { background-color: var(--bg-card) !important; }
.text-muted { color: var(--text-muted) !important; }
.border-top    { border-top-color: var(--border) !important; }
.border-bottom { border-bottom-color: var(--border) !important; }
.border-info   { border-color: rgba(96,165,250,0.22) !important; }
.font-monospace { font-family: var(--font-mono) !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }

pre, code {
  background-color: #1a1a24;
  color: #a0a0cc;
  border: 1px solid var(--border);
  font-family: var(--font-mono);
}
pre {
  padding: 1em;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* ============================================
   Index Page — Upload Section
   ============================================ */

/* Drop Zone */
.drop-zone {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background-color: rgba(255,255,255,0.018);
  transition: border-color 0.2s, background-color 0.2s;
  overflow: hidden;
  cursor: pointer;
}
.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent);
  background-color: var(--accent-dim);
}
.drop-zone.drag-over { border-style: solid; }
.drop-zone.has-files { border-color: rgba(52,211,153,0.4); background-color: var(--success-dim); }

.drop-zone__label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.25rem 1.5rem;
  min-height: 155px;
  text-align: center;
  cursor: pointer;
}
.drop-zone__icon {
  font-size: 2.4rem;
  color: var(--text-faint);
  margin-bottom: 0.7rem;
  transition: color 0.2s, transform 0.2s;
  line-height: 1;
}
.drop-zone:hover .drop-zone__icon,
.drop-zone.drag-over .drop-zone__icon {
  color: var(--accent);
  transform: translateY(-3px) scale(1.06);
}
.drop-zone.has-files .drop-zone__icon { color: var(--success); }
.drop-zone__primary {
  color: var(--text);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.2rem;
}
.drop-zone__secondary { color: var(--text-muted); font-size: 0.78rem; }

.drop-zone__input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
  z-index: 2;
}

/* Selected files preview */
.selected-files-preview {
  border-top: 1px solid var(--border);
  padding: 0.6rem 0.9rem;
  max-height: 170px;
  overflow-y: auto;
  background: rgba(0,0,0,0.15);
}
.selected-file-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.28rem 0;
  font-size: 0.785rem;
  border-bottom: 1px solid var(--border-soft);
}
.selected-file-item:last-child { border-bottom: none; }
.selected-file-item i { color: var(--text-faint); font-size: 0.9rem; flex-shrink: 0; }
.selected-file-item__name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}
.selected-file-item__size { color: var(--text-faint); white-space: nowrap; font-size: 0.72rem; }

/* Upload Progress */
.upload-progress {
  background-color: rgba(124,124,248,0.07);
  border: 1px solid rgba(124,124,248,0.2);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  display: none;
}
.upload-progress.visible { display: block; }
.upload-progress__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.65rem;
}
.upload-progress__label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.upload-progress__label .spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(124,124,248,0.25);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}
.upload-progress__pct { color: var(--text-muted); font-size: 0.78rem; }
.upload-progress__track {
  height: 5px;
  background-color: rgba(255,255,255,0.07);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.55rem;
}
.upload-progress__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  border-radius: 3px;
  transition: width 0.25s ease;
  width: 0%;
}
.upload-progress__fill.indeterminate {
  width: 45%;
  animation: progress-slide 1.4s ease-in-out infinite;
}
@keyframes progress-slide {
  0%   { transform: translateX(-120%); }
  100% { transform: translateX(280%); }
}
.upload-progress__stages {
  display: flex;
  gap: 1rem;
  font-size: 0.73rem;
  color: var(--text-faint);
}
.upload-progress__stage { display: flex; align-items: center; gap: 0.3rem; }
.upload-progress__stage.active { color: var(--accent); }
.upload-progress__stage.done   { color: var(--success); }

/* ============================================
   Index Page — Batch Cards
   ============================================ */
.batch-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  height: 100%;
  display: flex;
  flex-direction: column;
  margin-bottom: 0;
}
.batch-card:hover {
  border-color: var(--accent-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.batch-card .card-body  {
  padding: 1.1rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.batch-card .card-footer {
  padding: 0.65rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.batch-card .batch-name-display {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.batch-card .card-text.small {
  font-size: 0.775rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}
.batch-card .custom-play-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  background-color: var(--accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  border: none;
  transition: background-color 0.15s, box-shadow 0.15s, transform 0.15s;
  text-decoration: none;
  flex-shrink: 0;
}
.batch-card .custom-play-btn:hover {
  background-color: var(--accent-hover);
  color: #fff;
  box-shadow: 0 0 16px rgba(124,124,248,0.4);
  transform: scale(1.07);
}
.batch-card .custom-play-btn i { position: relative; left: 1px; }

/* Rename form styles */
.rename-batch-form-list .form-control {
  font-size: 0.8rem;
  padding: 0.3rem 0.55rem;
  background-color: var(--bg-input);
  border-color: var(--border);
  color: var(--text);
}
.rename-feedback-list { font-size: 0.75rem; min-height: 1.2em; }

/* ============================================
   Collection Page — Processing Banner
   ============================================ */
.processing-banner {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  background-color: rgba(96,165,250,0.07);
  border: 1px solid rgba(96,165,250,0.18);
  border-radius: var(--radius);
  padding: 0.7rem 1.1rem;
  margin-bottom: 1.25rem;
}
.processing-banner__spin {
  width: 18px; height: 18px;
  border: 2px solid rgba(96,165,250,0.25);
  border-top-color: var(--info);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  flex-shrink: 0;
}
.processing-banner__text { flex: 1; }
.processing-banner__title {
  font-size: 0.8375rem;
  font-weight: 600;
  color: var(--info);
  margin: 0;
}
.processing-banner__sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
}
.processing-banner__countdown {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   Collection Page — Header
   ============================================ */
.collection-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.collection-header__info { min-width: 0; }
.collection-header__title { font-size: 1.5rem; font-weight: 700; margin: 0 0 0.2rem; }
.collection-header__meta { font-size: 0.78rem; color: var(--text-muted); }
.collection-header__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.collection-play-btn {
  width: 48px; height: 48px;
  border-radius: 50%;
  background-color: rgba(248,113,113,0.15);
  border: 1px solid rgba(248,113,113,0.3);
  color: var(--danger);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  transition: background-color 0.15s, transform 0.15s, box-shadow 0.15s;
  text-decoration: none;
}
.collection-play-btn:hover {
  background-color: rgba(248,113,113,0.25);
  border-color: rgba(248,113,113,0.5);
  color: var(--danger);
  transform: scale(1.07);
  box-shadow: 0 0 16px rgba(248,113,113,0.3);
}
.collection-play-btn i { position: relative; left: 1px; }

/* ============================================
   Collection Page — Sharing Banners
   ============================================ */
.share-banner {
  display: flex;
  align-items: center;
  gap: 1rem;
  background-color: var(--success-dim);
  border: 1px solid rgba(52,211,153,0.22);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.share-banner__icon { color: var(--success); font-size: 1.1rem; flex-shrink: 0; }
.share-banner__content { flex: 1; min-width: 200px; }
.share-banner__title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--success);
  margin-bottom: 0.35rem;
}
.share-banner__url-row {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}
.share-banner .form-control {
  font-size: 0.775rem;
  padding: 0.3rem 0.6rem;
  background-color: rgba(0,0,0,0.25);
  border-color: rgba(52,211,153,0.18);
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.private-banner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.65rem 1.1rem;
  margin-bottom: 1.25rem;
}
.private-banner__icon { color: var(--text-faint); }
.private-banner__text { flex: 1; font-size: 0.8rem; color: var(--text-muted); }

/* ============================================
   Collection Page — Filter Chips
   ============================================ */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}
.filter-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.22rem 0.65rem;
  font-size: 0.73rem;
  font-weight: 500;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  line-height: 1.4;
}
.filter-chip:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  background-color: var(--accent-dim);
}
.filter-chip.active {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-dim);
}

/* ============================================
   Collection Page — Media Cards
   ============================================ */
.media-grid .col {
  display: flex;
  flex-direction: column;
}

.media-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.media-card:hover {
  border-color: var(--accent-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.media-card.is-hidden-item {
  opacity: 0.5;
  border-style: dashed;
  border-color: rgba(255,255,255,0.08);
}
.media-card.is-hidden-item:hover { opacity: 0.85; border-style: solid; }
.media-card.is-liked-item {
  border-color: rgba(251,191,36,0.35);
  box-shadow: 0 0 14px rgba(251,191,36,0.10);
}

/* Thumbnail */
.media-thumb {
  position: relative;
  height: 175px;
  background-color: var(--bg-thumb);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}
.media-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.media-card:hover .media-thumb img { transform: scale(1.05); }

.media-thumb__icon-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  color: var(--text-faint);
  transition: transform 0.2s;
}
.media-card:hover .media-thumb__icon-wrap { transform: scale(1.04); }
.media-thumb__icon-wrap i { font-size: 2.6rem; }
.media-thumb__type-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.8;
}

/* Per-type icon colors */
.media-thumb--video .media-thumb__icon-wrap { color: var(--color-video); }
.media-thumb--audio .media-thumb__icon-wrap { color: var(--color-audio); }
.media-thumb--pdf   .media-thumb__icon-wrap { color: var(--color-pdf);   }
.media-thumb--blob  .media-thumb__icon-wrap { color: var(--color-blob);  }
.media-thumb--zip   .media-thumb__icon-wrap { color: var(--warning);     }

/* Type badge overlay */
.media-type-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border-radius: 20px;
  backdrop-filter: blur(6px);
}
.badge-video { background: rgba(129,140,248,0.2); color: #c7d2fe; border: 1px solid rgba(129,140,248,0.3); }
.badge-audio { background: rgba(52,211,153,0.2);  color: #6ee7b7; border: 1px solid rgba(52,211,153,0.3); }
.badge-image { background: rgba(96,165,250,0.2);  color: #bfdbfe; border: 1px solid rgba(96,165,250,0.3); }
.badge-pdf   { background: rgba(248,113,113,0.2); color: #fca5a5; border: 1px solid rgba(248,113,113,0.3); }
.badge-blob  { background: rgba(167,139,250,0.2); color: #ddd6fe; border: 1px solid rgba(167,139,250,0.3); }
.badge-zip   { background: rgba(251,191,36,0.15); color: #fde68a; border: 1px solid rgba(251,191,36,0.3); }

/* Processing state inside thumb */
.media-thumb--processing {
  background: linear-gradient(135deg, var(--bg-thumb) 0%, #1c1c2e 100%);
}
.processing-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
  padding: 0 0.5rem;
}
.processing-state__spinner {
  width: 26px; height: 26px;
  border: 2px solid rgba(96,165,250,0.18);
  border-top-color: var(--info);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
.processing-state__text {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--info);
  min-width: 80px;
}
.processing-state__steps {
  display: flex;
  gap: 3px;
  align-items: center;
}
.processing-state__step {
  width: 18px; height: 3px;
  border-radius: 2px;
  background-color: rgba(96,165,250,0.12);
}
.processing-state__step.done { background-color: var(--success); }
.processing-state__step.active {
  background-color: var(--info);
  animation: pulse-step 1.4s ease-in-out infinite;
}
@keyframes pulse-step { 0%,100%{opacity:0.4} 50%{opacity:1} }

/* Failed state */
.failed-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  color: var(--danger);
  font-size: 0.72rem;
  text-align: center;
  padding: 0 0.5rem;
}
.failed-state i { font-size: 1.9rem; opacity: 0.65; }

/* Card body */
.media-card__body {
  padding: 0.8rem 0.9rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.media-card__name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.2rem;
}
.media-card__meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  flex: 1;
  margin-bottom: 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.media-card__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.25rem;
}
.media-card__actions .btn {
  padding: 0.28rem 0.5rem;
  font-size: 0.72rem;
  border-radius: var(--radius-sm);
}
.media-card__actions-left, .media-card__actions-right {
  display: flex;
  gap: 0.25rem;
}

/* ============================================
   Admin Publish Card
   ============================================ */
.admin-publish-card {
  background-color: var(--bg-card);
  border: 1px solid rgba(96,165,250,0.18);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 2rem;
}
.admin-publish-card .card-header {
  background: rgba(96,165,250,0.07);
  border-bottom: 1px solid rgba(96,165,250,0.14);
  color: var(--info);
  font-size: 0.9rem;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
}
.empty-state__icon { font-size: 2.75rem; opacity: 0.25; margin-bottom: 0.9rem; }
.empty-state__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}
.empty-state__text { font-size: 0.875rem; color: var(--text-muted); }

/* ============================================
   SLIDESHOW PAGE
   (Mostly kept intact — already dark)
   ============================================ */
body.slideshow-page-body {
  background-color: #000 !important;
  color: #fff !important;
  padding-top: 0;
  height: 100vh;
  overflow: hidden;
}

.slideshow-page-body .lb-footer { display: none !important; }
.slideshow-page-body .footer   { display: none !important; }

.slideshow-page-body .navbar,
.slideshow-page-body .lb-navbar {
  background-color: rgba(12, 12, 14, 0.92) !important;
  border-bottom: 1px solid #222 !important;
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1070;
  transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}
.slideshow-page-body .navbar.navbar-hidden,
.slideshow-page-body .lb-navbar.navbar-hidden {
  opacity: 0;
  transform: translateY(-100%);
  pointer-events: none;
}
.slideshow-page-body .navbar .navbar-brand,
.slideshow-page-body .lb-navbar .navbar-brand,
.slideshow-page-body .navbar .nav-link,
.slideshow-page-body .lb-navbar .nav-link {
  color: #eaeaea !important;
}
.slideshow-page-body .navbar .nav-link:hover,
.slideshow-page-body .lb-navbar .nav-link:hover { color: #fff !important; }

#return-link {
  position: fixed;
  top: 12px; left: 12px;
  z-index: 1075;
  color: #ddd;
  background-color: rgba(28, 28, 30, 0.78);
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-sm);
  font-size: 0.825em;
  transition: opacity 0.3s, transform 0.3s, background-color 0.2s, color 0.2s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
  text-decoration: none;
}
#return-link:hover { background-color: rgba(48, 48, 52, 0.92); color: #fff; }
#return-link.element-hidden-via-autohide {
  opacity: 0;
  transform: translateY(-150%);
  pointer-events: none;
}

.slideshow-container {
  width: 100%; height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #000;
  position: relative;
}
.slideshow-media {
  max-width: 100%;
  max-height: 100%;
  display: none;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}
.slideshow-media.media-active { display: block; opacity: 1; }
#slideshow-audio.media-active { display: block; }
.loading-spinner { z-index: 10; }

.controls-container {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.93) 0%, rgba(0,0,0,0.72) 60%, rgba(0,0,0,0) 100%);
  padding: 14px 18px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1060;
  min-height: 72px;
  box-sizing: border-box;
  transition: opacity 0.3s, transform 0.3s;
}
.slideshow-page-body .controls-container.controls-hidden {
  opacity: 0;
  transform: translateY(100%);
  pointer-events: none;
}
.slideshow-controls {
  display: flex;
  gap: 11px;
  align-items: center;
  flex-grow: 1;
  justify-content: center;
}
.btn-control {
  width: 42px; height: 42px;
  background-color: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: #f0f0f0;
  font-size: 1.1rem;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.35);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all 0.15s;
}
.btn-control:hover, .btn-control:focus-visible {
  background-color: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.3);
  color: #fff;
  box-shadow: 0 1px 6px rgba(0,0,0,0.5);
  transform: scale(1.05);
}
.btn-control:active {
  background-color: rgba(255,255,255,0.14);
  transform: scale(0.97);
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.3);
}
.btn-play-pause { width: 56px; height: 56px; font-size: 1.7rem; }
.download-container, .fullscreen-container {
  width: 46px;
  display: flex;
  justify-content: center;
}

.progress-bar-group {
  display: flex;
  align-items: center;
  flex-grow: 1;
  margin: 0 12px;
  min-width: 120px;
  max-width: 450px;
}
#media-progress-bar, .media-progress-bar-input,
#volume-control, .volume-control-input {
  -webkit-appearance: none; appearance: none;
  background: transparent;
  cursor: pointer;
  flex-grow: 1;
  height: 16px;
}
#media-progress-bar::-webkit-slider-runnable-track,
.media-progress-bar-input::-webkit-slider-runnable-track,
#volume-control::-webkit-slider-runnable-track,
.volume-control-input::-webkit-slider-runnable-track {
  background: rgba(255,255,255,0.28);
  height: 5px;
  border-radius: 3px;
  transition: background-color 0.15s;
}
#media-progress-bar::-moz-range-track,
.media-progress-bar-input::-moz-range-track,
#volume-control::-moz-range-track,
.volume-control-input::-moz-range-track {
  background: rgba(255,255,255,0.28);
  height: 5px;
  border-radius: 3px;
}
#media-progress-bar:hover::-webkit-slider-runnable-track,
.media-progress-bar-input:hover::-webkit-slider-runnable-track,
#volume-control:hover::-webkit-slider-runnable-track,
.volume-control-input:hover::-webkit-slider-runnable-track { background: rgba(255,255,255,0.5); }
#media-progress-bar:hover::-moz-range-track,
.media-progress-bar-input:hover::-moz-range-track,
#volume-control:hover::-moz-range-track,
.volume-control-input:hover::-moz-range-track { background: rgba(255,255,255,0.5); }

#media-progress-bar::-webkit-slider-thumb,
.media-progress-bar-input::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  margin-top: -5px;
  background-color: #f0f0f0;
  border: 1px solid #bbb;
  height: 15px; width: 15px;
  border-radius: 50%;
  transition: transform 0.15s;
}
#media-progress-bar::-moz-range-thumb,
.media-progress-bar-input::-moz-range-thumb {
  background-color: #f0f0f0;
  border: 1px solid #bbb;
  height: 13px; width: 13px;
  border-radius: 50%;
  box-sizing: border-box;
}
#media-progress-bar:active::-webkit-slider-thumb,
.media-progress-bar-input:active::-webkit-slider-thumb { transform: scale(1.2); }
#media-progress-bar:active::-moz-range-thumb,
.media-progress-bar-input:active::-moz-range-thumb { transform: scale(1.2); }

#volume-control, .volume-control-input { width: 70px; flex-grow: 0; }
#volume-control::-webkit-slider-thumb,
.volume-control-input::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  margin-top: -5px;
  background-color: #f0f0f0;
  border: 1px solid #bbb;
  height: 15px; width: 9px;
  border-radius: 3px;
}
#volume-control::-moz-range-thumb,
.volume-control-input::-moz-range-thumb {
  background-color: #f0f0f0;
  border: 1px solid #bbb;
  height: 13px; width: 7px;
  border-radius: 3px;
  box-sizing: border-box;
}

#time-display, .time-display {
  color: #e0e0e0;
  font-size: 0.875em;
  min-width: 90px;
  text-align: center;
  margin-left: 8px;
  font-variant-numeric: tabular-nums;
}
.volume-container { display: flex; align-items: center; gap: 8px; }
#counter { color: #ccc; margin: 0 10px; font-size: 0.875em; font-variant-numeric: tabular-nums; }

/* Fullscreen */
#slideshow-container.is-truly-fullscreen,
#slideshow-container:-webkit-full-screen,
#slideshow-container:-moz-full-screen,
#slideshow-container:-ms-fullscreen,
#slideshow-container:fullscreen {
  width: 100vw !important; height: 100vh !important;
  margin: 0 !important; padding: 0 !important;
  background-color: #000 !important;
  border: none !important;
  box-sizing: border-box !important;
}
#slideshow-container.is-truly-fullscreen {
  position: fixed !important;
  top: 0 !important; left: 0 !important;
  z-index: 2147483000 !important;
}
#slideshow-container.is-truly-fullscreen .slideshow-media,
#slideshow-container:-webkit-full-screen .slideshow-media,
#slideshow-container:-moz-full-screen .slideshow-media,
#slideshow-container:-ms-fullscreen .slideshow-media,
#slideshow-container:fullscreen .slideshow-media { box-shadow: none !important; }

.slideshow-page-body .navbar.navbar-hidden-true   { display: none !important; }
.slideshow-page-body #return-link.element-hidden-in-fullscreen { display: none !important; }
.slideshow-page-body .controls-container.controls-truly-hidden { display: none !important; }
.slideshow-page-body .navbar,
.slideshow-page-body .lb-navbar { z-index: 2147483500; }
.slideshow-page-body #return-link  { z-index: 2147483505; }
.slideshow-page-body .controls-container { z-index: 2147483500; }

/* ============================================
   Responsive / Mobile
   ============================================ */
@media (max-width: 575px) {
  body { padding-top: 56px; }
  .flash-messages-container { padding-top: 56px; }

  .collection-header { flex-direction: column; gap: 0.75rem; }
  .collection-header__actions { flex-wrap: wrap; }

  .media-thumb { height: 150px; }
  .drop-zone__label { padding: 1.75rem 1rem; min-height: 130px; }
  .drop-zone__icon  { font-size: 2rem; }

  .filter-chips { gap: 0.3rem; }
  .filter-chip  { font-size: 0.68rem; padding: 0.18rem 0.5rem; }

  .controls-container { padding: 10px 12px 14px; min-height: 62px; }
  .slideshow-controls { gap: 7px; }
  .btn-control { width: 36px; height: 36px; font-size: 0.95rem; }
  .btn-play-pause { width: 48px; height: 48px; font-size: 1.45rem; }
  .volume-container { display: none; }
  #counter { margin: 0 6px; font-size: 0.8em; }

  .share-banner { flex-direction: column; align-items: flex-start; }
  .batch-card .custom-play-btn { width: 40px; height: 40px; font-size: 1.1rem; }
}

@media (max-width: 767px) {
  .processing-banner { flex-wrap: wrap; }
}