/* ============================================
   Image Converter Tool - Single block layout
   State 1: Upload → State 2: Preview + format + download
   ============================================ */

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

/* State 1: Upload area */
.imgconv-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;
}

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

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

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

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

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

/* State 2: Converter area */
.imgconv-converter-area {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-xl);
}

.imgconv-preview-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 360px;
  background: var(--mk-bg);
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-md);
  overflow: hidden;
}

.imgconv-preview-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--mk-radius-sm);
}

.imgconv-preview-info {
  font-size: 0.875rem;
  color: var(--mk-text-muted);
  line-height: 1.5;
}

/* Format buttons - 4 columns */
.imgconv-format-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--mk-space-sm);
}

@media (max-width: 480px) {
  .imgconv-format-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.imgconv-format-btn {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-sm);
  background: var(--mk-card-bg);
  color: var(--mk-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--mk-transition-fast);
  text-align: center;
}

.imgconv-format-btn:hover {
  border-color: var(--mk-primary);
  background: var(--mk-primary-light);
}

.imgconv-format-btn.active {
  border-color: var(--mk-primary);
  background: var(--mk-primary);
  color: white;
}

/* Settings */
.imgconv-setting-group {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-sm);
}

.imgconv-setting-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--mk-text);
  margin: 0;
}

/* Quality slider */
#qualityGroup.imgconv-setting-group {
  margin-top: var(--mk-space-lg);
}

.imgconv-slider-row {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-xs);
}

.imgconv-slider-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
}

.imgconv-slider-value {
  font-weight: 500;
  color: var(--mk-primary);
}

/* Action buttons */
.imgconv-actions {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-lg);
  margin-top: var(--mk-space-sm);
}

.imgconv-actions .mk-btn {
  width: 100%;
}

.imgconv-actions .mk-btn.disabled {
  opacity: 0.6;
  cursor: not-allowed;
}