:root {
  --bg-primary: #000000;
  --bg-secondary: #1C1C1E;
  --bg-tertiary: #2C2C2E;
  --bg-elevated: #3A3A3C;
  --accent: #7C3AED;
  --accent-hover: #6D28D9;
  --accent-light: rgba(124, 58, 237, 0.15);
  --green: #34D399;
  --green-dim: rgba(52, 211, 153, 0.15);
  --red: #EF4444;
  --red-dim: rgba(239, 68, 68, 0.15);
  --yellow: #FBBF24;
  --blue: #60A5FA;
  --text-primary: #FFFFFF;
  --text-secondary: #8E8E93;
  --text-tertiary: #636366;
  --border: #38383A;
  --border-light: #48484A;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --transition: 200ms ease;
  --panel-width: 420px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-elevated); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-tertiary); }

.hidden { display: none !important; }
.screen { display: none; }
.screen.active { display: flex; }

/* ===== UPLOAD ===== */
#upload-screen { min-height: 100vh; align-items: center; justify-content: center; padding: 24px; }
.upload-wrapper { width: 100%; max-width: 540px; }
.upload-logo { text-align: center; margin-bottom: 32px; }
.upload-logo h1 { font-size: 28px; font-weight: 700; margin-top: 16px; letter-spacing: -0.5px; }
.upload-logo .subtitle { color: var(--text-secondary); margin-top: 8px; font-size: 15px; }

.server-card {
  display: flex; align-items: center; gap: 10px;
  background: var(--green-dim); border: 1px solid rgba(52,211,153,0.3);
  border-radius: var(--radius-md); padding: 12px 16px; margin-bottom: 16px;
  font-size: 14px;
}
.server-card .btn { margin-left: auto; }

.drop-zone {
  border: 2px dashed var(--border); border-radius: var(--radius-xl);
  padding: 40px 24px; text-align: center; cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  display: flex; flex-direction: column; align-items: center; gap: 12px; color: var(--text-secondary);
}
.drop-zone:hover, .drop-zone.drag-over { border-color: var(--accent); background: var(--accent-light); }
.drop-zone .drop-text { font-size: 15px; font-weight: 500; }
.drop-zone .drop-or { font-size: 13px; color: var(--text-tertiary); }
.file-label { cursor: pointer; }

.divider {
  display: flex; align-items: center; gap: 16px;
  margin: 24px 0; color: var(--text-tertiary); font-size: 13px;
}
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }

.paste-section textarea {
  width: 100%; height: 120px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius-md); color: var(--text-primary);
  font-family: 'SF Mono', 'Fira Code', monospace; font-size: 13px;
  padding: 12px 16px; resize: vertical; outline: none;
  transition: border-color var(--transition);
}
.paste-section textarea:focus { border-color: var(--accent); }
.paste-section textarea::placeholder { color: var(--text-tertiary); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border: none; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500; cursor: pointer;
  transition: all var(--transition); white-space: nowrap;
  font-family: inherit; line-height: 1.4;
}
.btn-accent { background: var(--accent); color: white; }
.btn-accent:hover { background: var(--accent-hover); }
.btn-outline { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn-outline:hover { background: var(--accent-light); }
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.btn-block { width: 100%; justify-content: center; margin-top: 12px; padding: 10px; }
.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: 6px; }
.btn-icon {
  padding: 6px; border-radius: 6px; background: transparent; border: none;
  color: var(--text-secondary); cursor: pointer; transition: all var(--transition);
  display: inline-flex; align-items: center; justify-content: center;
}
.btn-icon:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.btn-danger { color: var(--red) !important; }
.btn-danger:hover { background: var(--red-dim) !important; }

/* ===== TOOLBAR ===== */
#toolbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 12px;
  padding: 10px 20px;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.toolbar-left, .toolbar-right { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.toolbar-center { flex: 1; display: flex; justify-content: center; }
.file-stats { font-size: 13px; color: var(--text-secondary); }
.file-stats .dot { margin: 0 2px; }

.search-box {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 6px 12px; width: 260px;
  transition: border-color var(--transition);
}
.search-box:focus-within { border-color: var(--accent); }
.search-box svg { flex-shrink: 0; color: var(--text-tertiary); }
.search-box input {
  flex: 1; background: none; border: none; outline: none;
  color: var(--text-primary); font-size: 14px; font-family: inherit;
}
.search-box input::placeholder { color: var(--text-tertiary); }

.trash-badge {
  position: absolute; top: -4px; right: -4px;
  background: var(--red); color: white;
  font-size: 10px; font-weight: 700;
  min-width: 16px; height: 16px; line-height: 16px;
  text-align: center; border-radius: 8px; padding: 0 4px;
}
#trash-toggle-btn { position: relative; }

/* ===== EDITOR ===== */
#editor-screen { flex-direction: column; min-height: 100vh; }
#categories-container, #trash-container {
  padding: 20px; display: flex; flex-direction: column; gap: 24px; padding-bottom: 100px;
}

/* ===== TRASH VIEW ===== */
.trash-view-header {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 20px;
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
}
.trash-view-header h3 { flex: 1; font-size: 18px; }

.trash-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.trash-empty {
  text-align: center; padding: 60px 20px;
  color: var(--text-tertiary); font-size: 15px;
}

/* ===== CATEGORY ===== */
.category-section {
  background: var(--bg-secondary); border-radius: var(--radius-xl);
  overflow: hidden; border: 1px solid var(--border);
}
.category-header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 20px; user-select: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.category-section:not(.collapsed) .category-header { border-bottom-color: var(--border); }

.category-drag-handle {
  cursor: grab; color: var(--text-tertiary); padding: 4px;
  display: flex; align-items: center; transition: color var(--transition);
}
.category-drag-handle:hover { color: var(--text-secondary); }
.category-drag-handle:active { cursor: grabbing; }

.category-collapse-btn {
  background: none; border: none; color: var(--text-secondary); cursor: pointer;
  padding: 4px; display: flex; align-items: center;
  transition: transform 0.3s ease, color var(--transition);
}
.category-collapse-btn:hover { color: var(--text-primary); }
.collapsed .category-collapse-btn { transform: rotate(-90deg); }

.category-name {
  font-size: 17px; font-weight: 600; flex: 1;
  border: 1px solid transparent; border-radius: 6px;
  padding: 2px 8px; margin: -2px 0;
  background: transparent; color: var(--text-primary);
  outline: none; font-family: inherit;
  transition: border-color var(--transition), background var(--transition);
}
.category-name:hover { border-color: var(--border); }
.category-name:focus { border-color: var(--accent); background: var(--bg-tertiary); }

.category-icon-input {
  width: 130px; background: var(--bg-tertiary); border: 1px solid var(--border);
  border-radius: 6px; padding: 3px 8px;
  color: var(--text-secondary); font-size: 12px;
  font-family: 'SF Mono', monospace; outline: none;
  transition: border-color var(--transition);
}
.category-icon-input:focus { border-color: var(--accent); }

.category-count {
  font-size: 12px; color: var(--text-tertiary);
  background: var(--bg-tertiary); padding: 2px 10px;
  border-radius: 20px; font-weight: 500; font-variant-numeric: tabular-nums;
}
.category-actions { display: flex; gap: 2px; }

.category-body { padding: 16px; }
.collapsed .category-body { display: none; }

/* ===== PRESET GRID ===== */
.preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
  gap: 12px; min-height: 40px;
}
.preset-grid.empty-grid {
  border: 2px dashed var(--border); border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-tertiary); font-size: 13px; padding: 24px;
}

/* ===== PRESET CARD ===== */
.preset-card {
  background: var(--bg-tertiary); border-radius: var(--radius-lg);
  overflow: hidden; cursor: grab;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative; border: 1px solid transparent;
}
.preset-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  border-color: var(--border-light);
}
.preset-card:active { cursor: grabbing; }

.card-video-wrap {
  position: relative; width: 100%;
  aspect-ratio: 4 / 5; overflow: hidden; background: var(--bg-primary);
}
.card-video-wrap video { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-thumb-img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-primary) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.card-thumb-img.loaded {
  opacity: 1;
}
.hover-video {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover; z-index: 3;
}
.card-video-wrap::before {
  content: '▶';
  position: absolute; inset: 0; z-index: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-primary) 100%);
  color: var(--text-tertiary); font-size: 24px; opacity: 0.3;
}
.card-video-placeholder {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-primary); color: var(--text-tertiary); z-index: 1;
}
.card-video-placeholder svg { opacity: 0.3; }

.card-badges {
  position: absolute; top: 6px; left: 6px; right: 6px;
  display: flex; gap: 4px; flex-wrap: wrap; pointer-events: none;
  z-index: 4;
}
.badge {
  padding: 2px 7px; border-radius: 20px;
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.4px;
}
.badge-new { background: var(--green); color: #000; }
.badge-vertical { background: var(--blue); color: #000; }
.badge-horizontal { background: var(--yellow); color: #000; }
.badge-provider { background: rgba(0,0,0,0.6); color: var(--text-secondary); margin-left: auto; }

.card-actions {
  position: absolute; top: 6px; right: 6px;
  display: flex; gap: 4px;
  opacity: 0; transition: opacity var(--transition);
  z-index: 5;
}
.preset-card:hover .card-actions { opacity: 1; }

.card-action-btn {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px; border: none; cursor: pointer;
  background: rgba(0,0,0,0.7); color: var(--text-secondary);
  backdrop-filter: blur(4px); transition: all var(--transition);
}
.card-action-btn:hover { background: rgba(0,0,0,0.9); color: white; }
.card-action-btn.card-delete:hover { color: var(--red); }

.card-info { padding: 8px 10px; }

.card-name {
  display: block; font-size: 12px; font-weight: 500;
  margin-bottom: 6px; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  border: 1px solid transparent; border-radius: 4px;
  padding: 1px 4px; margin: -1px -4px 6px;
  outline: none; background: transparent;
  color: var(--text-primary); width: calc(100% + 8px);
  font-family: inherit; transition: border-color var(--transition);
}
.card-name:hover { border-color: var(--border); }
.card-name:focus { border-color: var(--accent); background: var(--bg-primary); }

.card-controls { display: flex; gap: 4px; align-items: center; }

.orientation-group {
  display: flex; border-radius: 6px; overflow: hidden;
  border: 1px solid var(--border); flex: 1;
}
.orientation-btn {
  flex: 1; padding: 3px 0; border: none; background: transparent;
  color: var(--text-tertiary); font-size: 11px; font-weight: 600;
  cursor: pointer; transition: all var(--transition); font-family: inherit;
}
.orientation-btn.active { background: var(--accent); color: white; }
.orientation-btn:not(.active):hover { background: var(--bg-elevated); color: var(--text-secondary); }

.new-toggle {
  padding: 3px 7px; border: 1px solid var(--border); border-radius: 6px;
  background: transparent; color: var(--text-tertiary);
  font-size: 10px; font-weight: 700; cursor: pointer;
  transition: all var(--transition); font-family: inherit; letter-spacing: 0.5px;
}
.new-toggle.active { background: var(--green); color: #000; border-color: var(--green); }
.new-toggle:not(.active):hover { border-color: var(--green); color: var(--green); }

.preset-card.search-hidden, .category-section.search-hidden { display: none; }

/* ===== TRASH CARD RESTORE BUTTON ===== */
.card-restore-btn {
  width: 100%; padding: 6px; border: none; border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  background: var(--green-dim); color: var(--green);
  font-size: 12px; font-weight: 600; cursor: pointer;
  font-family: inherit; transition: background var(--transition);
}
.card-restore-btn:hover { background: rgba(52, 211, 153, 0.25); }

/* ===== DETAIL PANEL ===== */
.detail-panel {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: var(--panel-width); max-width: 100vw;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  z-index: 200;
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.5);
}
.detail-panel.open { transform: translateX(0); }

.detail-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.detail-panel-header h3 { font-size: 16px; font-weight: 600; }

.detail-panel-body {
  flex: 1; overflow-y: auto; padding: 16px 20px;
  display: flex; flex-direction: column; gap: 16px;
}

.detail-video-preview {
  width: 100%; border-radius: var(--radius-md); overflow: hidden;
  background: var(--bg-primary); aspect-ratio: 16/9;
}
.detail-video-preview video {
  width: 100%; height: 100%; object-fit: contain; display: block;
}

.detail-field { display: flex; flex-direction: column; gap: 6px; }
.detail-field label {
  font-size: 12px; color: var(--text-secondary); font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.detail-input {
  width: 100%; padding: 8px 12px;
  background: var(--bg-tertiary); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-size: 14px; font-family: inherit; outline: none;
  transition: border-color var(--transition);
}
.detail-input:focus { border-color: var(--accent); }

.detail-select {
  width: 100%; padding: 8px 12px;
  background: var(--bg-tertiary); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-size: 14px; font-family: inherit; outline: none;
  transition: border-color var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%238E8E93' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
.detail-select:focus { border-color: var(--accent); }

.chip-group { display: flex; flex-wrap: wrap; gap: 6px; }

.chip {
  padding: 5px 12px; border-radius: 20px;
  border: 1px solid var(--border); background: transparent;
  color: var(--text-secondary); font-size: 12px; font-weight: 500;
  cursor: pointer; transition: all var(--transition); font-family: inherit;
}
.chip.active { background: var(--accent); color: white; border-color: var(--accent); }
.chip:not(.active):hover { border-color: var(--accent); color: var(--accent); }

.detail-row { display: flex; gap: 12px; }
.detail-row .detail-field { flex: 1; }

.detail-panel-footer {
  display: flex; justify-content: space-between;
  padding: 16px 20px; border-top: 1px solid var(--border);
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; animation: fadeIn 0.2s ease;
}
.modal {
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 24px;
  width: 90%; max-width: 440px; animation: scaleIn 0.2s ease;
}
.modal h3 { font-size: 18px; margin-bottom: 20px; }
.modal-field { margin-bottom: 16px; }
.modal-field label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.modal-field input {
  width: 100%; padding: 8px 12px;
  background: var(--bg-tertiary); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-size: 14px; font-family: inherit; outline: none;
  transition: border-color var(--transition);
}
.modal-field input:focus { border-color: var(--accent); }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 24px; }

/* ===== TOAST ===== */
#toast-container {
  position: fixed; bottom: 24px; right: 24px; z-index: 9999;
  display: flex; flex-direction: column; gap: 8px;
}
.toast {
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 12px 20px;
  font-size: 14px; color: var(--text-primary);
  animation: slideInRight 0.3s ease;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5); max-width: 360px;
}
.toast.toast-exit { animation: slideOutRight 0.3s ease forwards; }

/* ===== SORTABLE ===== */
.sortable-ghost { opacity: 0.3; }
.sortable-chosen { box-shadow: 0 12px 40px rgba(124, 58, 237, 0.3); border-color: var(--accent) !important; }
.sortable-drag { transform: rotate(1deg) scale(1.02); }
.category-ghost { opacity: 0.4; }
.category-chosen { box-shadow: 0 0 0 2px var(--accent); }

/* ===== PROGRESS ===== */
.progress-bar-wrap {
  position: fixed; top: 0; left: 0; right: 0; height: 3px;
  z-index: 9999; background: var(--bg-tertiary);
}
.progress-bar {
  height: 100%; background: var(--accent);
  transition: width 0.2s ease; border-radius: 0 2px 2px 0;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideOutRight { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(40px); } }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  #toolbar { flex-wrap: wrap; gap: 6px; padding: 8px 12px; }
  .toolbar-center { order: 3; width: 100%; }
  .search-box { width: 100%; }
  .toolbar-right { gap: 4px; }
  .preset-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; }
  .category-header { padding: 10px 14px; flex-wrap: wrap; }
  #categories-container, #trash-container { padding: 12px; gap: 16px; }
  .detail-panel { width: 100vw; }
  .btn span.btn-text { display: none; }
}