/* ==========================================================================
   Increase Image Size in KB Styles (tokens only, no hex)
   ========================================================================== */

/* Page container, same as the other tools (was missing: content touched the window edge). */
main {
  max-width: var(--max-content, 1120px);
  margin: 0 auto;
  padding: 0 var(--space-4, 16px) var(--space-12, 48px);
}

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

.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);
}

.target-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.target-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 64px;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  font-family: var(--font-sans);
  font-weight: var(--font-weight-semibold);
  color: var(--ink);
  background-color: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-control);
  cursor: pointer;
  user-select: none;
  box-sizing: border-box;
}

.target-chip[aria-pressed="true"] {
  background-color: var(--action);
  color: var(--on-action);
  border-color: var(--action);
}

.target-chip:focus-visible {
  outline: 2px solid var(--action);
  outline-offset: 2px;
}

.target-inputs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-3);
}

.form-field {
  display: flex;
  flex-direction: column;
}

.form-label {
  display: block;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-1);
  color: var(--ink);
}

.form-input {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-base);
  font-family: var(--font-sans);
  color: var(--ink);
  background-color: var(--sheet);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-control);
  box-sizing: border-box;
}

.form-input:focus-visible {
  outline: 2px solid var(--action);
  outline-offset: 1px;
}

/* The file inputs are driven by the drop zone buttons (same rule as image-resizer.css). */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

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

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

.drop-zone {
  border: 2px dashed var(--hairline);
  border-radius: var(--radius-sheet);
  padding: var(--space-4) var(--space-2);
  text-align: center;
  background: var(--sheet);
  cursor: pointer;
  transition: border-color 0.2s ease;
}

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

.upload-icon {
  margin: 0 auto var(--space-2) auto;
  color: var(--ink-muted);
}

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

.drop-zone-subtext {
  margin: 0 0 var(--space-2) 0;
  color: var(--ink-muted);
  font-size: var(--font-size-sm);
}

/* Error and Info boxes */
.error-box {
  padding: var(--space-3);
  background-color: var(--paper);
  border: 1px solid var(--error);
  border-radius: var(--radius-control);
  color: var(--error);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
}

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

.info-box {
  padding: var(--space-3);
  background-color: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-control);
  color: var(--ink);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-2);
}

/* Result Panel */
.result-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: var(--sheet);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sheet);
  padding: var(--space-4);
}

.orig-size-line {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--ink-muted);
}

.result-size-line {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin: var(--space-1) 0;
}

.big-size {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-heading);
  color: var(--ink);
}

.needs-size {
  font-size: var(--font-size-base);
  color: var(--ink-muted);
}

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

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

.check-icon {
  flex-shrink: 0;
}

.check-ok {
  color: var(--ok);
}

.check-fail {
  color: var(--error);
}

.check-text {
  flex: 1;
}

.check-pad-note {
  font-size: var(--font-size-sm);
  color: var(--ink-muted);
  padding-left: var(--space-6);
}

/* Comparison */
.preview-comparison {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  align-items: center;
  margin: var(--space-3) 0;
}

.preview-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

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

.preview-thumb {
  max-width: 140px;
  max-height: 160px;
  object-fit: contain;
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-control);
}

/* Actions */
.result-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.download-btn {
  min-height: 48px;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  width: 100%;
}

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

.secondary-actions .secondary-btn {
  flex: 1;
  min-height: 44px;
}

.how-to-steps {
  padding-left: var(--space-5);
  margin: var(--space-3) 0;
}

.how-to-steps li {
  margin-bottom: var(--space-2);
  line-height: var(--line-height-body);
}

@media (max-width: 479.98px) {
  .preview-comparison {
    flex-direction: column;
  }
}

/* C2: page styles that set display (grid/flex) must not show elements marked hidden. */
main [hidden] {
  display: none !important;
}

/* C2: button styles (copied from image-resizer.css; they are not shared). */
.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2, 8px);
  min-height: 44px;
  padding: 10px var(--space-6, 24px);
  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;
  transition: opacity 0.15s ease;
}

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

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

.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-control);
  background: var(--sheet);
  color: var(--ink);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.secondary-btn:hover {
  border-color: var(--action);
  color: var(--action);
}

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

/* Related tools chips, same as /sign-pdf (44 px targets, WCAG 2.5.8). NO transition (C-12). */
.related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
}

.related-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: var(--radius-control);
  background: var(--sheet);
  border: 1px solid var(--hairline);
  color: var(--action);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

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

.related-link:focus-visible {
  outline: 2px solid var(--action);
  outline-offset: 2px;
}