/* ============================================
   FONTGENERATOR — Remove Background Page
   ============================================ */

/* === Page Layout === */
.removebg-page {
  min-height: calc(100vh - var(--navbar-h));
  background: var(--color-bg);
}

/* === Hero Header === */
.removebg-hero {
  text-align: center;
  padding: var(--space-12) var(--space-8) var(--space-8);
  background: var(--gradient-subtle);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.removebg-hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,0.08) 0%, transparent 70%);
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}

.removebg-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px var(--space-4);
  background: rgba(124,58,237,0.1);
  border: 1px solid rgba(124,58,237,0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-5);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.removebg-hero__badge svg {
  width: 14px;
  height: 14px;
}

.removebg-hero__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  line-height: 1.1;
}

.removebg-hero__desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: var(--leading-relaxed);
}

/* === Main Workspace === */
.removebg-workspace {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-10) var(--space-8);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: start;
}

/* === Upload Zone === */
.upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-2xl);
  aspect-ratio: 4/3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  background: var(--color-bg-sidebar);
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--color-primary);
  background: rgba(124,58,237,0.04);
  transform: scale(1.01);
}

.upload-zone.dragover {
  box-shadow: 0 0 0 4px rgba(124,58,237,0.15);
}

.upload-zone__icon {
  width: 56px;
  height: 56px;
  background: rgba(124,58,237,0.1);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: transform var(--transition-spring);
}

.upload-zone:hover .upload-zone__icon {
  transform: scale(1.1) translateY(-2px);
}

.upload-zone__icon svg {
  width: 28px;
  height: 28px;
}

.upload-zone__title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
}

.upload-zone__sub {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
  line-height: var(--leading-relaxed);
}

.upload-zone__formats {
  display: flex;
  gap: var(--space-2);
}

.format-badge {
  padding: 2px 8px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-muted);
}

.upload-zone__input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* === Image Preview in upload zone === */
.upload-zone.has-image {
  border-style: solid;
  border-color: var(--color-primary-light);
}

.upload-zone__image-preview {
  position: absolute;
  inset: 0;
  object-fit: contain;
  width: 100%;
  height: 100%;
  border-radius: calc(var(--radius-2xl) - 2px);
}

.upload-zone__replace-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  opacity: 0;
  transition: opacity var(--transition-fast);
  border-radius: calc(var(--radius-2xl) - 2px);
}

.upload-zone.has-image:hover .upload-zone__replace-overlay {
  opacity: 1;
}

.upload-zone__replace-text {
  color: white;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
}

/* === Result Panel === */
.result-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.result-panel__canvas-wrapper {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-2xl);
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
  background: repeating-conic-gradient(
    rgba(160,160,160,0.12) 0% 25%,
    transparent 0% 50%
  ) 0 0 / 16px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.result-panel__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  height: 100%;
  width: 100%;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.result-panel__empty svg {
  width: 40px;
  height: 40px;
  opacity: 0.3;
}

#result-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: none;
}

/* === Processing Overlay === */
.processing-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.92);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  z-index: 10;
  border-radius: var(--radius-2xl);
}

[data-theme="dark"] .processing-overlay {
  background: rgba(15,14,23,0.92);
}

.processing-overlay.active {
  display: flex;
}

.processing-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

.processing-label {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
}

.processing-sublabel {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.processing-progress {
  width: 160px;
  height: 4px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.processing-progress__bar {
  height: 100%;
  background: var(--gradient-brand);
  border-radius: var(--radius-full);
  width: 0%;
  transition: width 0.3s ease;
}

/* === Action Buttons === */
.result-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.btn-remove-bg {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--gradient-cta);
  color: white;
  border: none;
  border-radius: var(--radius-xl);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  cursor: pointer;
  box-shadow: var(--shadow-primary);
  transition: all var(--transition-normal);
  min-width: 140px;
}

.btn-remove-bg:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary-lg);
}

.btn-remove-bg:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-remove-bg svg {
  width: 16px;
  height: 16px;
}

.btn-download-result {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-download-result:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(124,58,237,0.04);
}

.btn-download-result:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-download-result svg {
  width: 15px;
  height: 15px;
}

/* === Background Options === */
.bg-options {
  background: var(--color-bg-sidebar);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
}

.bg-options__title {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}

.bg-options__swatches {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.bg-swatch {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.bg-swatch:hover {
  transform: scale(1.12);
}

.bg-swatch.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(124,58,237,0.3);
}

.bg-swatch--transparent {
  background: repeating-conic-gradient(#ccc 0% 25%, #fff 0% 50%) 0 0 / 8px 8px;
  border-color: var(--color-border);
}

/* === Watermark === */
.watermark-info {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(124,58,237,0.06);
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: var(--radius-lg);
  font-size: var(--text-xs);
  color: var(--color-primary);
}

.watermark-info svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* === Features Strip === */
.features-strip {
  max-width: 1100px;
  margin: 0 auto var(--space-12);
  padding: 0 var(--space-8);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.feature-card {
  background: var(--color-bg-sidebar);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  transition: all var(--transition-fast);
}

.feature-card:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.feature-card__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(124,58,237,0.1);
  color: var(--color-primary);
  flex-shrink: 0;
}

.feature-card__icon svg {
  width: 20px;
  height: 20px;
}

.feature-card__title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.feature-card__desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* === Responsive === */
@media (max-width: 900px) {
  .removebg-workspace {
    grid-template-columns: 1fr;
    padding: var(--space-6) var(--space-4);
  }
  .features-strip {
    grid-template-columns: 1fr;
    padding: 0 var(--space-4);
  }
  .removebg-hero {
    padding: var(--space-8) var(--space-4) var(--space-6);
  }
}