/* ============================================================
   noise-remover.com — Studio Page CSS
   ============================================================ */

/* ============================================================
   1. STUDIO LAYOUT
   ============================================================ */
.studio-page {
  background: var(--color-dark-50);
  min-height: calc(100vh - var(--nav-height));
}

.studio-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-dark-200);
  padding: var(--space-5) 0;
}

.studio-header-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.studio-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-black);
  color: var(--color-dark);
  margin-bottom: var(--space-1);
}

.studio-title span { color: var(--color-primary); }

.studio-subtitle {
  font-size: var(--text-sm);
  color: var(--color-dark-500);
  margin-bottom: 0;
}

.studio-body {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-6) var(--space-12);
}

/* ============================================================
   2. USAGE BAR
   ============================================================ */
.studio-usage-bar {
  background: var(--color-white);
  border: 1px solid var(--color-dark-200);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.studio-usage-bar-icon {
  color: var(--color-primary);
  font-size: 16px;
  flex-shrink: 0;
}

.studio-usage-bar-label {
  font-size: var(--text-sm);
  font-weight: var(--font-semi);
  color: var(--color-dark-500);
  flex-shrink: 0;
}

.studio-usage-bar-track {
  flex: 1;
  height: 6px;
  background: var(--color-dark-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.studio-usage-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width 1s ease;
}

.studio-usage-bar-fill.warning { background: var(--color-warning); }
.studio-usage-bar-fill.danger  { background: var(--color-error); }

.studio-usage-bar-value {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  flex-shrink: 0;
  white-space: nowrap;
}

.studio-plan-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: var(--font-bold);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: var(--color-primary-50);
  color: #92400E;
  border: 1px solid var(--color-primary-100);
  flex-shrink: 0;
}

/* ============================================================
   3. STEPS PROGRESS BAR
   ============================================================ */
.studio-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.studio-step {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-3);
  background: var(--color-white);
  border: 1px solid var(--color-dark-200);
  border-radius: var(--radius-md);
  position: relative;
  transition: all var(--transition-base);
}

.studio-step::after {
  content: '';
  position: absolute;
  right: calc(-1 * var(--space-2) - 5px);
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-dark-300);
  border-top: 2px solid var(--color-dark-300);
  transform: translateY(-50%) rotate(45deg);
  z-index: 1;
}

.studio-step:last-child::after { display: none; }

.studio-step.active {
  background: var(--color-dark);
  border-color: var(--color-dark);
}

.studio-step.active::after {
  border-color: var(--color-dark-500);
}

.studio-step.done {
  background: #F0FDF4;
  border-color: #BBF7D0;
}

.studio-step.done::after {
  border-color: #10B981;
}

.studio-step-icon {
  font-size: 15px;
  color: var(--color-dark-400);
  flex-shrink: 0;
}

.studio-step.active .studio-step-icon { color: var(--color-primary); }
.studio-step.done .studio-step-icon   { color: var(--color-success); }

.studio-step-info {}

.studio-step-num {
  font-size: 10px;
  color: var(--color-dark-400);
  font-weight: var(--font-semi);
  display: block;
  line-height: 1;
  margin-bottom: 2px;
}

.studio-step.active .studio-step-num { color: var(--color-dark-400); }
.studio-step.done .studio-step-num   { color: #059669; }

.studio-step-label {
  font-size: 12px;
  font-weight: var(--font-bold);
  color: var(--color-dark-700);
  line-height: 1;
}

.studio-step.active .studio-step-label { color: var(--color-white); }
.studio-step.done .studio-step-label   { color: #059669; }

/* ============================================================
   4. MAIN STUDIO CARD
   ============================================================ */
.studio-card {
  background: var(--color-white);
  border: 1px solid var(--color-dark-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-4);
}

/* ============================================================
   5. UPLOAD ZONE
   ============================================================ */
.upload-zone {
  border: 2.5px dashed #FFAD5C;
  border-radius: var(--radius-lg);
  background: #FFFBF7;
  cursor: pointer;
  transition: all 0.25s ease;
  outline: none;
  margin: var(--space-4);
}

.upload-zone:hover,
.upload-zone.drag-active {
  border-color: var(--color-primary);
  background: var(--color-primary-50);
  transform: scale(1.005);
}

.upload-zone:focus-visible {
  box-shadow: 0 0 0 3px rgba(255,107,0,0.2);
}

.upload-zone-inner {
  padding: var(--space-12) var(--space-6);
  text-align: center;
}

.upload-zone-icon {
  width: 72px;
  height: 72px;
  background: var(--color-primary-50);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  font-size: 32px;
  color: var(--color-primary);
  transition: all var(--transition-base);
}

.upload-zone:hover .upload-zone-icon,
.upload-zone.drag-active .upload-zone-icon {
  background: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.1);
}

.upload-zone h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-2);
}

.upload-zone p {
  font-size: var(--text-sm);
  color: var(--color-dark-500);
  margin-bottom: var(--space-5);
}

.upload-formats {
  font-size: var(--text-xs);
  color: var(--color-dark-400);
  margin-top: var(--space-4);
  line-height: 1.6;
}

/* ============================================================
   6. FILE INFO ROW
   ============================================================ */
.file-info-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: var(--color-dark-50);
  border-bottom: 1px solid var(--color-dark-200);
}

.file-info-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary-50);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.file-info-text { flex: 1; }

.file-info-name {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  display: block;
  margin-bottom: 2px;
}

.file-info-meta {
  font-size: var(--text-xs);
  color: var(--color-dark-400);
}

.file-info-remove {
  color: var(--color-error);
  font-size: 18px;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: background var(--transition-base);
  background: none;
  border: none;
}

.file-info-remove:hover {
  background: var(--color-error-light);
}

/* ============================================================
   7. AI DETECTION BANNER
   ============================================================ */
.ai-detect-banner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--color-dark-200);
  transition: background var(--transition-base);
}

.ai-detect-banner.analyzing {
  background: var(--color-primary-50);
  border-color: var(--color-primary-100);
}

.ai-detect-banner.done {
  background: #F0FDF4;
  border-color: #BBF7D0;
}

.ai-detect-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}

.ai-detect-banner.analyzing .ai-detect-icon {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.ai-detect-banner.done .ai-detect-icon {
  background: #DCFCE7;
  color: var(--color-success);
}

.ai-detect-text { flex: 1; }

.ai-detect-title {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  display: block;
  margin-bottom: 2px;
}

.ai-detect-banner.analyzing .ai-detect-title { color: var(--color-primary); }
.ai-detect-banner.done .ai-detect-title       { color: #059669; }

.ai-detect-sub {
  font-size: var(--text-xs);
  color: var(--color-dark-500);
}

.ai-detect-badge {
  font-size: 11px;
  font-weight: var(--font-bold);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.ai-detect-banner.analyzing .ai-detect-badge {
  background: var(--color-primary-50);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-100);
}

.ai-detect-banner.done .ai-detect-badge {
  background: #DCFCE7;
  color: #059669;
  border: 1px solid #BBF7D0;
}

/* ============================================================
   8. PRESET SELECTOR
   ============================================================ */
.preset-section {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-dark-200);
}

.preset-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.preset-section-title {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-dark);
}

.preset-section-hint {
  font-size: var(--text-xs);
  color: var(--color-dark-400);
}

.studio-presets-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.studio-preset-card {
  border: 1.5px solid var(--color-dark-200);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-2);
  text-align: center;
  cursor: pointer;
  background: var(--color-white);
  transition: all var(--transition-base);
  position: relative;
}

.studio-preset-card:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-50);
}

.studio-preset-card.active {
  border-color: var(--color-dark);
  background: var(--color-dark);
}

.studio-preset-card img {
  width: 28px;
  height: 28px;
  margin: 0 auto var(--space-2);
  display: block;
}

.studio-preset-card.active img {
  filter: brightness(0) saturate(100%) invert(52%) sepia(96%) saturate(1352%) hue-rotate(1deg) brightness(107%) contrast(106%);
}

.studio-preset-name {
  font-size: 11px;
  font-weight: var(--font-bold);
  color: var(--color-dark);
  display: block;
  margin-bottom: 2px;
}

.studio-preset-card.active .studio-preset-name { color: var(--color-white); }

.studio-preset-desc {
  font-size: 9px;
  color: var(--color-dark-400);
  display: block;
  line-height: 1.3;
}

.studio-preset-card.active .studio-preset-desc { color: var(--color-dark-400); }

.studio-preset-check {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 14px;
  height: 14px;
  background: var(--color-primary);
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  color: white;
}

.studio-preset-card.active .studio-preset-check { display: flex; }

/* Preset info box */
.preset-info-box {
  background: var(--color-dark-50);
  border: 1px solid var(--color-dark-200);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.preset-info-icon {
  width: 32px;
  height: 32px;
  background: var(--color-primary-50);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.preset-info-name {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  display: block;
  margin-bottom: 2px;
}

.preset-info-desc {
  font-size: var(--text-xs);
  color: var(--color-dark-500);
  display: block;
  margin-bottom: var(--space-2);
}

.preset-info-tags {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
}

.preset-tag {
  background: var(--color-primary-50);
  color: #92400E;
  font-size: 10px;
  font-weight: var(--font-bold);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

/* ============================================================
   9. PROCESS BUTTON
   ============================================================ */
.process-btn-row {
  padding: var(--space-4) var(--space-5);
  display: flex;
  gap: var(--space-3);
}

.btn-process {
  flex: 1;
  padding: var(--space-4);
  background: var(--color-dark);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-md);
  font-weight: var(--font-bold);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition: background var(--transition-base), transform var(--transition-fast);
}

.btn-process:hover {
  background: var(--color-primary);
}

.btn-process:active {
  transform: scale(0.98);
}

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

.btn-process i {
  font-size: 18px;
}

.btn-preview {
  padding: var(--space-4) var(--space-5);
  background: var(--color-white);
  color: var(--color-dark);
  border: 1.5px solid var(--color-dark-200);
  border-radius: var(--radius-md);
  font-size: var(--text-md);
  font-weight: var(--font-bold);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-base);
}

.btn-preview:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ============================================================
   10. PROCESSING PROGRESS CARD
   ============================================================ */
.processing-card {
  background: var(--color-white);
  border: 1px solid var(--color-dark-200);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
}

.processing-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.processing-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-dark);
}

.processing-title i {
  color: var(--color-primary);
  font-size: 16px;
}

.processing-percent {
  font-size: var(--text-xl);
  font-weight: var(--font-black);
  color: var(--color-primary);
}

.processing-track {
  height: 8px;
  background: var(--color-dark-200);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-3);
}

.processing-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-amber) 100%);
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
  position: relative;
  overflow: hidden;
}

.processing-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmerProgress 1.5s infinite;
}

@keyframes shimmerProgress {
  to { left: 100%; }
}

.processing-substeps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
}

.processing-substep {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: var(--font-semi);
}

.processing-substep i { font-size: 12px; }
.processing-substep.done    { color: var(--color-success); }
.processing-substep.active  { color: var(--color-primary); }
.processing-substep.pending { color: var(--color-dark-400); }

.processing-substep.active i {
  animation: spin 0.8s linear infinite;
}

/* ============================================================
   11. RESULT CARD
   ============================================================ */
.result-card {
  background: var(--color-white);
  border: 2px solid var(--color-success);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-4);
  animation: resultSlideIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.result-complete-banner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: #F0FDF4;
  border-bottom: 1px solid #BBF7D0;
}

.result-complete-icon {
  width: 30px;
  height: 30px;
  background: #DCFCE7;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--color-success);
  flex-shrink: 0;
}

.result-complete-title {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: #059669;
  display: block;
}

.result-complete-sub {
  font-size: var(--text-xs);
  color: var(--color-dark-500);
}

/* Before/After toggle */
.before-after-section {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-dark-200);
}

.before-after-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.before-after-title {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.before-after-title i { color: var(--color-primary); }

.before-after-toggle {
  display: flex;
  gap: var(--space-1);
}

.ba-btn {
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: var(--font-semi);
  cursor: pointer;
  border: 1px solid var(--color-dark-200);
  background: var(--color-white);
  color: var(--color-dark-500);
  transition: all var(--transition-base);
}

.ba-btn.active {
  background: var(--color-dark);
  color: var(--color-white);
  border-color: var(--color-dark);
}

/* Format selector */
.format-section {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-dark-200);
}

.format-label {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-3);
  display: block;
}

.format-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.format-card {
  border: 1.5px solid var(--color-dark-200);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-2);
  text-align: center;
  cursor: pointer;
  background: var(--color-white);
  transition: all var(--transition-base);
  position: relative;
}

.format-card:hover:not(.locked) {
  border-color: var(--color-primary);
  background: var(--color-primary-50);
}

.format-card.active {
  border-color: var(--color-dark);
  background: var(--color-dark);
}

.format-card.locked {
  opacity: 0.6;
  cursor: not-allowed;
}

.format-name {
  font-size: 13px;
  font-weight: var(--font-bold);
  color: var(--color-dark);
  display: block;
}

.format-card.active .format-name { color: var(--color-white); }

.format-desc {
  font-size: 9px;
  color: var(--color-dark-400);
  display: block;
  margin-top: 2px;
}

.format-pro-badge {
  background: var(--color-primary-50);
  color: #92400E;
  font-size: 9px;
  font-weight: var(--font-bold);
  padding: 1px 5px;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-top: 3px;
}

.format-upgrade-note {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: var(--font-semi);
  text-align: center;
  display: block;
}

/* Download row */
.download-row {
  padding: var(--space-4) var(--space-5);
  display: flex;
  gap: var(--space-3);
}

.btn-download {
  flex: 1;
  padding: var(--space-4);
  background: var(--color-dark);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-md);
  font-weight: var(--font-bold);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition: background var(--transition-base);
}

.btn-download:hover { background: var(--color-primary); }

.btn-try-again {
  padding: var(--space-4) var(--space-5);
  background: var(--color-white);
  color: var(--color-dark);
  border: 1.5px solid var(--color-dark-200);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-try-again:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ============================================================
   12. AD PLACEHOLDER
   ============================================================ */
.studio-ad-box {
  background: var(--color-white);
  border: 1px solid var(--color-dark-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  margin-bottom: var(--space-4);
}

.studio-ad-label {
  font-size: 10px;
  color: var(--color-dark-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
  display: block;
}

.studio-ad-label a {
  color: var(--color-primary);
  font-weight: var(--font-semi);
}

.studio-ad-placeholder {
  background: var(--color-dark-100);
  border-radius: var(--radius-md);
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-dark-400);
  font-size: var(--text-sm);
}

/* ============================================================
   13. RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .studio-header-inner,
  .studio-body {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .studio-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .studio-step::after { display: none; }

  .studio-presets-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .format-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .process-btn-row,
  .download-row {
    flex-direction: column;
  }

  .processing-substeps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .studio-steps {
    grid-template-columns: 1fr 1fr;
  }

  .studio-presets-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .format-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}