/* === PDF Merge — Tool Styles === */

.pm-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

/* Hero */
.pm-hero {
  padding-top: 2.5rem;
  margin-bottom: 1.5rem;
}
.pm-hero h1 {
  font-size: clamp(1.75rem, 1rem + 3vw, 2.5rem);
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text-primary);
}
.pm-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Drop Zone */
.pm-dropzone {
  border: 2px dashed var(--border-color);
  border-radius: 12px;
  padding: 2.5rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  margin-bottom: 1.5rem;
  user-select: none;
}
.pm-dropzone:hover,
.pm-dropzone:focus,
.pm-dropzone.pm-dragover {
  border-color: var(--accent);
  background: var(--accent-light);
  outline: none;
}
.pm-dropzone__inner {
  pointer-events: none;
}
.pm-dropzone__icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  display: block;
}
.pm-dropzone__text {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 6px;
}
.pm-dropzone__sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0;
}

/* File List Section */
.pm-list-section {
  margin-bottom: 1.5rem;
}
.pm-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.pm-list-header h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}
.pm-summary {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* File List */
.pm-file-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

/* File Item */
.pm-file-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  transition: border-color var(--transition), opacity var(--transition);
}
.pm-file-item.pm-dragging {
  opacity: 0.4;
}
.pm-file-item.pm-drag-over {
  border-color: var(--accent);
  border-top: 2px solid var(--accent);
}

/* Drag handle */
.pm-drag-handle {
  cursor: grab;
  color: var(--text-secondary);
  font-size: 1.1rem;
  flex-shrink: 0;
  padding: 0 2px;
  line-height: 1;
}
.pm-drag-handle:active {
  cursor: grabbing;
}

/* Move buttons (mobile fallback) */
.pm-move-btns {
  display: none;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}
.pm-move-btn {
  width: 24px;
  height: 24px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background var(--transition), border-color var(--transition);
}
.pm-move-btn:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--accent);
}
.pm-move-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* File icon */
.pm-file-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

/* File info */
.pm-file-info {
  flex: 1;
  min-width: 0;
}
.pm-file-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 3px;
}
.pm-file-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.pm-badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--bg-hover);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.pm-badge--error {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.3);
}

/* Remove button */
.pm-remove-btn {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.pm-remove-btn:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: #ef4444;
  color: #ef4444;
}

/* Progress */
.pm-progress-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.pm-progress-bar {
  flex: 1;
  height: 8px;
  background: var(--bg-hover);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}
.pm-progress-bar::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: var(--pm-progress, 0%);
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.2s ease;
}
.pm-progress-text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 36px;
  text-align: right;
}

/* Messages */
.pm-error {
  padding: 10px 14px;
  border-radius: 8px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
  font-size: 0.875rem;
  margin-bottom: 12px;
}
.pm-success {
  padding: 10px 14px;
  border-radius: 8px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #16a34a;
  font-size: 0.875rem;
  margin-bottom: 12px;
}

/* Actions */
.pm-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Buttons */
.pm-btn {
  padding: 8px 22px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
}
.pm-btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.pm-btn--primary:hover:not(:disabled) {
  background: var(--accent-hover, #1d4ed8);
  border-color: var(--accent-hover, #1d4ed8);
}
.pm-btn--primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.pm-btn--ghost {
  background: transparent;
  color: var(--text-secondary);
}
.pm-btn--ghost:hover {
  color: #ef4444;
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.06);
}

/* FAQ */
.pm-faq {
  margin-top: 2.5rem;
}
.pm-faq h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 14px;
}
.pm-faq__item {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 8px;
  overflow: hidden;
}
.pm-faq__item summary {
  padding: 12px 16px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}
.pm-faq__item summary::-webkit-details-marker { display: none; }
.pm-faq__item summary::after {
  content: '+';
  font-size: 1.1rem;
  color: var(--text-secondary);
  flex-shrink: 0;
  margin-left: 8px;
  transition: transform var(--transition);
}
.pm-faq__item[open] summary::after {
  transform: rotate(45deg);
}
.pm-faq__item p {
  padding: 0 16px 14px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Responsive */
@media (max-width: 600px) {
  .pm-drag-handle {
    display: none;
  }
  .pm-move-btns {
    display: flex;
  }
  .pm-btn--primary {
    flex: 1;
  }
  .pm-actions {
    flex-direction: column;
  }
  .pm-btn {
    width: 100%;
    height: 42px;
  }
}