/* ============================================
   Split PDF Tool - split PDF into multiple files
   ============================================ */

.splitpdf-single-card {
  padding: var(--mk-space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-lg);
}

.splitpdf-upload-area {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  padding: var(--mk-space-2xl);
  background: var(--mk-bg);
  border: 2px dashed var(--mk-border);
  border-radius: var(--mk-radius-md);
  text-align: center;
  transition: all var(--mk-transition-base);
  cursor: pointer;
}

.splitpdf-upload-area:hover,
.splitpdf-upload-area.dragover {
  border-color: var(--mk-primary);
  background: var(--mk-primary-light);
}

.splitpdf-upload-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--mk-space-md);
}

.splitpdf-upload-icon {
  font-size: 3rem;
  opacity: 0.5;
}

.splitpdf-upload-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--mk-text-main);
  margin: 0;
}

.splitpdf-upload-subtitle {
  font-size: 0.875rem;
  color: var(--mk-text-muted);
  margin: 0;
}

.splitpdf-converter-area {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--mk-space-xl);
}

.splitpdf-info {
  padding: var(--mk-space-md) var(--mk-space-lg);
  background: var(--mk-bg);
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-md);
  max-width: 100%;
  width: 100%;
}

.splitpdf-info-name {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--mk-text-main);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.splitpdf-info-meta {
  font-size: 0.8125rem;
  color: var(--mk-text-muted);
  margin-top: 0.25em;
}

.splitpdf-options-grid {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--mk-space-lg);
  margin-top: var(--mk-space-md);
}

.splitpdf-option-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--mk-space-xs);
}

.splitpdf-option-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--mk-text-main);
  text-align: left;
}

.splitpdf-select,
.splitpdf-input {
  min-width: 0;
  max-width: 280px;
}

/* Select & input — theme-aware */
.splitpdf-select,
.form-select.splitpdf-select {
  color: var(--mk-text-main);
  background-color: var(--mk-bg);
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-md);
  transition: border-color var(--mk-transition-fast), box-shadow var(--mk-transition-fast);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='%2394a3b8'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
}

.splitpdf-select:hover,
.form-select.splitpdf-select:hover {
  border-color: var(--mk-text-muted);
}

.splitpdf-select:focus,
.form-select.splitpdf-select:focus {
  outline: none;
  border-color: var(--mk-primary);
  box-shadow: 0 0 0 3px var(--mk-primary-light);
}

.splitpdf-input,
.form-control.splitpdf-input {
  color: var(--mk-text-main);
  background-color: var(--mk-bg);
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-md);
}

.splitpdf-input:focus,
.form-control.splitpdf-input:focus {
  outline: none;
  border-color: var(--mk-primary);
  box-shadow: 0 0 0 3px var(--mk-primary-light);
}

/* Dark theme: dropdown options + lighter arrow */
[data-theme="dark"] .splitpdf-select,
[data-theme="dark"] .form-select.splitpdf-select {
  color-scheme: dark;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='%23cbd5e1'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
}

/* Light theme: dropdown options */
:root:not([data-theme="dark"]) .splitpdf-select,
:root:not([data-theme="dark"]) .form-select.splitpdf-select {
  color-scheme: light;
}

/* Bootstrap dark theme */
[data-bs-theme="dark"] .splitpdf-select,
[data-bs-theme="dark"] .form-select.splitpdf-select {
  color-scheme: dark;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='%23cbd5e1'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
}

.splitpdf-preview-section {
  padding-top: var(--mk-space-lg);
  margin-top: var(--mk-space-sm);
  border-top: 1px solid var(--mk-border);
  width: 100%;
  text-align: left;
}

.splitpdf-preview-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--mk-text-main);
  margin: 0 0 var(--mk-space-md) 0;
  text-align: left;
}

.splitpdf-preview-container {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--mk-space-lg);
}

.splitpdf-preview-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--mk-space-sm);
}

.splitpdf-preview-group-header {
  display: flex;
  align-items: center;
}

.splitpdf-preview-group-title {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--mk-text-muted);
}

/* Slider for "Pages per file" */
.splitpdf-slider-row {
  width: 100%;
  max-width: 320px;
}

.splitpdf-slider-label {
  font-size: 0.875rem;
  color: var(--mk-text-main);
  margin-bottom: 0.5rem;
}

.splitpdf-slider-wrap {
  position: relative;
  padding-bottom: 2rem;
}

.splitpdf-slider-value {
  position: absolute;
  bottom: -0.25rem;
  left: 50%;
  transform: translateX(-50%);
  min-width: 2rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  background: var(--mk-primary);
  border-radius: var(--mk-radius-sm);
  text-align: center;
}

[data-theme="dark"] .splitpdf-slider-value,
[data-bs-theme="dark"] .splitpdf-slider-value {
  color: #fff;
  background: var(--mk-primary);
}

.splitpdf-slider,
.form-range.splitpdf-slider {
  width: 100%;
  height: 6px;
  padding: 0;
  background: transparent;
  appearance: none;
  -webkit-appearance: none;
}

.splitpdf-slider::-webkit-slider-runnable-track {
  height: 6px;
  background: var(--mk-border);
  border-radius: 3px;
}

.splitpdf-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin-top: -6px;
  background: var(--mk-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: transform var(--mk-transition-fast);
}

.splitpdf-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.splitpdf-slider::-moz-range-track {
  height: 6px;
  background: var(--mk-border);
  border-radius: 3px;
}

.splitpdf-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--mk-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

.splitpdf-slider:focus {
  outline: none;
}

.splitpdf-slider:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px var(--mk-primary-light);
}

.splitpdf-slider:focus::-moz-range-thumb {
  box-shadow: 0 0 0 3px var(--mk-primary-light);
}

.splitpdf-preview-thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--mk-space-sm);
  align-items: flex-start;
}

.splitpdf-preview-thumb-wrap {
  position: relative;
  flex-shrink: 0;
  width: 80px;
  cursor: pointer;
}

.splitpdf-preview-thumb {
  width: 100%;
  background: var(--mk-bg);
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-sm);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: border-color var(--mk-transition-fast);
}

.splitpdf-preview-thumb-wrap:hover .splitpdf-preview-thumb {
  border-color: var(--mk-primary);
}

.splitpdf-preview-thumb img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: top;
}

/* Preview modal */
.splitpdf-preview-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--mk-space-xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--mk-transition-base), visibility var(--mk-transition-base);
}

.splitpdf-preview-modal.is-open,
.splitpdf-preview-modal[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}

.splitpdf-preview-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  cursor: pointer;
}

.splitpdf-preview-content {
  position: relative;
  max-width: 95vw;
  max-height: 95vh;
  z-index: 1;
  overflow: auto;
}

.splitpdf-preview-imgs {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-lg);
  margin-bottom: 48px;
}

.splitpdf-preview-imgs img {
  max-width: 95vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--mk-radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.splitpdf-preview-close {
  position: absolute;
  top: -44px;
  right: 0;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: var(--mk-radius-sm);
  background: rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--mk-transition-fast);
}

.splitpdf-preview-close:hover {
  background: rgba(255, 255, 255, 0.35);
}

.splitpdf-preview-empty {
  font-size: 0.875rem;
  color: var(--mk-text-muted);
  padding: var(--mk-space-md) 0;
}

.splitpdf-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: var(--mk-space-md);
  padding-top: var(--mk-space-lg);
  border-top: 1px solid var(--mk-border);
  width: 100%;
}

.splitpdf-actions .mk-btn {
  width: auto;
}

.splitpdf-actions .mk-btn svg {
  margin-right: 0.35rem;
  vertical-align: -0.2em;
}

.splitpdf-spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid var(--mk-border);
  border-top-color: var(--mk-primary);
  border-radius: 50%;
  animation: splitpdf-spin 0.8s linear infinite;
  vertical-align: -0.2em;
  margin-right: 0.35rem;
}

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