/* ==========================================================================
   Crop PDF Styles (tokens only, no hex)
   ========================================================================== */

main {
  max-width: var(--max-content, 1120px);
  margin: 0 auto;
  padding: 0 var(--space-4, 16px) var(--space-12, 48px);
}

main [hidden] {
  display: none !important;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.pdf-tool-shell {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: var(--max-content);
  margin: 0 auto;
}

.tool-subtitle {
  font-size: var(--font-size-base);
  color: var(--ink-muted);
  line-height: var(--line-height-body);
  margin: 0 0 var(--space-2);
}

.device-note {
  font-size: var(--font-size-sm);
  color: var(--ink-muted);
  margin: 0 0 var(--space-4);
}

/* .device-note-mark comes from components.css (dark text on the yellow mark in both themes) – AG-075 C-6 */

.step-section {
  background: var(--sheet);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sheet);
  padding: var(--space-4);
}

.step-heading {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  margin-top: 0;
  margin-bottom: var(--space-3);
  color: var(--ink);
}

/* Upload Panel */
.upload-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.drop-zone {
  border: 2px dashed var(--rule);
  border-radius: var(--radius-sheet);
  padding: var(--space-6) var(--space-4);
  text-align: center;
  background: var(--paper);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.drop-zone:hover,
.drop-zone.dragover {
  border-color: var(--action);
  background-color: var(--sheet);
}

.upload-icon {
  color: var(--ink-muted);
  margin-bottom: var(--space-2);
}

.drop-zone-text {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--ink);
  margin: 0 0 var(--space-1);
}

.drop-zone-subtext {
  font-size: var(--font-size-sm);
  color: var(--ink-muted);
  margin: 0;
}

.upload-buttons {
  display: flex;
  gap: var(--space-2);
  margin: var(--space-3) 0 var(--space-2);
  flex-wrap: wrap;
  justify-content: center;
}

.upload-btn {
  min-height: 44px;
}

/* Error Box */
.error-box {
  background: var(--paper);
  border: 1px solid var(--error);
  border-radius: var(--radius-control);
  padding: var(--space-3) var(--space-4);
  color: var(--error);
  font-size: var(--font-size-sm);
  margin-top: var(--space-2);
}

.error-box a {
  color: var(--action);
  text-decoration: underline;
}

/* Options & Preview Layout */
.options-preview-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .options-preview-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }
}

.options-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.preview-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--ink);
}

.margins-grid {
  display: grid;
  /* minmax(0, 1fr): number inputs must be able to shrink below their natural width at 360 px (AG-075 C-5) */
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-1);
}

.margin-field .form-input {
  min-width: 0;
  width: 100%;
}

.margin-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.margin-label {
  font-size: var(--font-size-sm);
  color: var(--ink-muted);
}

.form-input {
  box-sizing: border-box;
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--rule);
  border-radius: var(--radius-control);
  background: var(--paper);
  color: var(--ink);
  font-family: inherit;
  font-size: var(--font-size-base);
}

.form-input:focus {
  outline: 2px solid var(--action);
  outline-offset: 2px;
  border-color: var(--action);
}

.scope-fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

.scope-radios {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  flex-wrap: wrap;
  margin-top: var(--space-1);
}

.scope-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  cursor: pointer;
  font-size: var(--font-size-base);
  color: var(--ink);
}

.scope-label input[type="radio"] {
  width: 18px;
  height: 18px;
}

.page-nav-controls {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.page-nav-btn {
  min-height: 44px;
  min-width: 44px;
  padding: 0 var(--space-3);
  font-size: var(--font-size-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.page-num-input {
  width: 70px;
  text-align: center;
}

.page-total-label {
  font-size: var(--font-size-sm);
  color: var(--ink-muted);
}

.tool-note {
  font-size: var(--font-size-sm);
  color: var(--ink-muted);
  line-height: var(--line-height-body);
  margin: 0;
}

/* Preview Canvas & Overlay */
.preview-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  width: 100%;
  background: var(--paper);
  padding: var(--space-4);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sheet);
  overflow: auto;
}

.preview-wrapper {
  position: relative;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  display: inline-block;
  max-width: 100%;
}

.preview-canvas {
  display: block;
  max-width: 100%;
  height: auto;
  box-shadow: var(--shadow-sm);
  background: var(--sheet);
}

.overlay-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: default;
}

.preview-label {
  font-size: var(--font-size-sm);
  color: var(--ink-muted);
  margin: 0 0 var(--space-1);
  text-align: center;
}

/* Process Button */
.process-btn {
  min-height: 44px;
  margin-top: var(--space-4);
  width: 100%;
}

/* Result Panel */
.result-panel {
  background: var(--sheet);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sheet);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.checklist li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--ink);
}

.result-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  align-items: center;
}

.download-btn {
  min-height: 44px;
}

.secondary-actions {
  display: flex;
  gap: var(--space-2);
}

.secondary-btn {
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--rule);
  border-radius: var(--radius-control);
  background: var(--sheet);
  color: var(--ink);
  font-family: inherit;
  font-size: var(--font-size-base);
  cursor: pointer;
}

.secondary-btn:hover {
  background: var(--paper);
}

.secondary-btn:focus {
  outline: 2px solid var(--action);
  outline-offset: 2px;
}

/* Content Sections */
.content-section {
  margin-top: var(--space-8);
}

.content-section h2 {
  font-size: var(--font-size-h2);
  color: var(--ink);
  margin-bottom: var(--space-3);
}

.how-to-steps,
.limits-list {
  padding-left: var(--space-5);
  color: var(--ink);
  line-height: var(--line-height-body);
}

.how-to-steps li,
.limits-list li {
  margin-bottom: var(--space-2);
}

.related-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  list-style: none;
  padding: 0;
  margin: 0;
}

.related-link {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  background: var(--sheet);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-control);
  color: var(--action);
  text-decoration: none;
  font-size: var(--font-size-sm);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.related-link:hover {
  border-color: var(--action);
}

/* Result checklist (AG-075 C-4: same look as the other PDF tools) */
.checklist-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--ink);
}

.check-icon {
  flex-shrink: 0;
  color: var(--ok);
}

.check-text {
  line-height: var(--line-height-body);
}

/* Primary button (AG-075 C-8: was missing, so Choose PDF / Crop PDF / Download were unstyled native buttons; same rules as add-page-numbers.css) */
.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 10px var(--space-6);
  border: 1px solid var(--action);
  border-radius: var(--radius-control);
  background: var(--action);
  color: var(--on-action);
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  text-decoration: none;
}

.primary-btn:hover:not(:disabled) {
  opacity: 0.92;
  color: var(--on-action);
}

.primary-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}