/* ══════════════════════════════════════════
   Phase 4: Asset Library
   Gallery grid, lightbox, upload modal
   ══════════════════════════════════════════ */

/* ── Header ── */
.asset-library-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}
.asset-library-header .section-header { margin-bottom: 0; }

/* ── Tabs ── */
.asset-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 24px;
  overflow-x: auto;
}

.asset-tab {
  padding: 10px 20px;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}
.asset-tab:hover { color: var(--juniper); }
.asset-tab.active {
  color: var(--copper);
  border-bottom-color: var(--copper);
  font-weight: 600;
}
.tab-count {
  font-size: 11px;
  background: #F3F4F6;
  padding: 1px 6px;
  border-radius: 10px;
  margin-left: 4px;
}
.asset-tab.active .tab-count { background: var(--copper); color: var(--white); }

.archive-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  cursor: pointer;
}

/* ── Grids ── */
.asset-grid { display: grid; gap: 16px; margin-bottom: 32px; }
.asset-grid-photos { grid-template-columns: repeat(3, 1fr); }
.asset-grid-videos { grid-template-columns: repeat(2, 1fr); }
.asset-grid-docs { grid-template-columns: repeat(2, 1fr); }

.asset-grid[hidden] { display: none; }

/* ── Photo Cards ── */
.asset-card {
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: box-shadow 0.15s;
}
.asset-card:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.08); }

.asset-photo { cursor: pointer; }

.asset-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--off-white);
}
.asset-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s;
}
.asset-photo:hover .asset-thumb img { transform: scale(1.03); }

.video-thumb { position: relative; }
.play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.asset-info {
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.asset-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}
.asset-desc {
  font-size: 12px;
  color: var(--text-secondary);
  width: 100%;
}
.asset-date {
  font-size: 11px;
  color: var(--text-secondary);
}

/* ── Doc/File Cards ── */
.asset-doc {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
}
.asset-file-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--off-white);
  border-radius: 8px;
  flex-shrink: 0;
}
.file-ext {
  font-size: 11px;
  font-weight: 700;
  color: var(--juniper);
  text-transform: uppercase;
}
.asset-doc .asset-info { flex: 1; padding: 0; }
.asset-doc .btn { flex-shrink: 0; }

/* ── Lightbox ── */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.85);
  align-items: center;
  justify-content: center;
  padding: 40px;
}
.lightbox-overlay.active { display: flex; }

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.lightbox-content img {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 4px;
}

.lightbox-footer {
  display: flex;
  align-items: center;
  gap: 16px;
}
.lightbox-asset-name {
  color: white;
  font-weight: 600;
  font-size: 16px;
}

/* ── Upload Modal ── */
.upload-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1001;
  background: rgba(0,0,0,0.5);
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.upload-modal.active { display: flex; }

.upload-modal-content {
  background: var(--white);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
}

.upload-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}
.upload-modal-header h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--juniper);
}
.upload-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text-secondary);
}

/* ── Drop Zone ── */
.drop-zone {
  border: 2px dashed var(--light-gray);
  border-radius: 8px;
  padding: 40px;
  text-align: center;
  margin-bottom: 20px;
  transition: border-color 0.2s, background 0.2s;
}
.drop-zone.drag-over {
  border-color: var(--copper);
  background: #FDF8F3;
}
.drop-zone p { margin-top: 12px; color: var(--text-secondary); font-size: 14px; }
.drop-zone-browse {
  color: var(--copper);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
}
.drop-zone-hint { font-size: 12px; color: var(--light-gray); margin-top: 4px; }

/* ── File List ── */
.file-list { margin-bottom: 16px; }
.file-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 4px;
  font-size: 13px;
}
.file-list-item .file-size { color: var(--text-secondary); font-size: 11px; }
.file-remove {
  background: none;
  border: none;
  color: var(--critical-red);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}

/* ── Form ── */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--juniper);
  margin-bottom: 6px;
}
.form-group select,
.form-group textarea,
.form-group input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text-primary);
}
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--copper);
  box-shadow: 0 0 0 3px rgba(200,150,78,0.1);
}

/* ── Upload Progress ── */
.upload-progress { margin: 16px 0; }
.progress-bar {
  height: 6px;
  background: var(--off-white);
  border-radius: 3px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--copper);
  border-radius: 3px;
  width: 0%;
  transition: width 0.3s;
}
#progress-text { font-size: 12px; color: var(--text-secondary); margin-top: 4px; display: block; }

.upload-error {
  padding: 10px 14px;
  background: #FEE2E2;
  color: var(--critical-red);
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 12px;
}

/* ── Empty State ── */
.asset-empty svg { opacity: 0.4; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .asset-grid-photos { grid-template-columns: repeat(2, 1fr); }
  .asset-grid-videos { grid-template-columns: 1fr; }
  .asset-grid-docs { grid-template-columns: 1fr; }
  .asset-library-header { flex-direction: column; gap: 12px; align-items: flex-start; }
}

@media (max-width: 480px) {
  .asset-grid-photos { grid-template-columns: 1fr; }
  .upload-modal-content { padding: 20px; }
}