/* ============================================================
   CSS Variables & Theming
   ============================================================ */
:root {
  --mac-bg: #F5F5F7;
  --mac-card: #FFFFFF;
  --mac-primary: #0071E3;
  --mac-primary-hover: #0077ED;
  --mac-primary-active: #005BB5;
  --mac-secondary: #F5F5F7;
  --mac-secondary-border: #D2D2D7;
  --mac-text: #1D1D1F;
  --mac-text-muted: #86868B;
  --mac-text-light: #AEAEB2;
  --mac-border: rgba(0, 0, 0, 0.06);
  --mac-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
  --mac-shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.08);
  --mac-drop-zone-bg: #F9F9FB;
  --mac-drop-zone-border: #D2D2D7;
  --mac-drop-zone-active: rgba(0, 113, 227, 0.08);
  --mac-drop-zone-border-active: #0071E3;
  --mac-input-bg: #F5F5F7;
  --mac-input-border: #D2D2D7;
  --mac-badge-bg: #F0F0F5;
  --mac-badge-text: #86868B;
  --mac-progress-bg: #E8E8ED;
  --mac-progress-fill: #0071E3;
  --mac-model-item-hover: #F5F5F7;
  --mac-destructive: #FF3B30;
  --mac-success: #34C759;
  --radius-card: 16px;
  --radius-button: 8px;
  --radius-input: 8px;
  --radius-badge: 6px;
  --transition: 0.2s ease;
}

[data-theme="dark"] {
  --mac-bg: #1C1C1E;
  --mac-card: #2C2C2E;
  --mac-text: #F5F5F7;
  --mac-text-muted: #98989D;
  --mac-text-light: #636366;
  --mac-border: rgba(255, 255, 255, 0.07);
  --mac-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --mac-shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.4);
  --mac-drop-zone-bg: #3A3A3C;
  --mac-drop-zone-border: #48484A;
  --mac-drop-zone-active: rgba(0, 113, 227, 0.15);
  --mac-input-bg: #3A3A3C;
  --mac-input-border: #48484A;
  --mac-badge-bg: #3A3A3C;
  --mac-badge-text: #98989D;
  --mac-progress-bg: #3A3A3C;
  --mac-secondary: #3A3A3C;
  --mac-secondary-border: #48484A;
  --mac-model-item-hover: #3A3A3C;
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--mac-bg);
  color: var(--mac-text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  transition: background-color var(--transition), color var(--transition);
}

/* ============================================================
   Header
   ============================================================ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 245, 247, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--mac-border);
  transition: background var(--transition), border-color var(--transition);
}

[data-theme="dark"] .app-header {
  background: rgba(28, 28, 30, 0.85);
}

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--mac-text);
}

.logo svg {
  color: var(--mac-primary);
}

/* Hardware Info */
.hw-info {
  display: flex;
  align-items: center;
}

.hw-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.01em;
  white-space: nowrap;
  max-width: 340px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hw-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  min-width: 6px;
  border-radius: 50%;
}

.hw-loading {
  background: var(--mac-badge-bg);
  color: var(--mac-text-muted);
}
.hw-loading::before { background: var(--mac-text-light); animation: pulse 1.4s ease-in-out infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.35; }
}

.hw-cuda {
  background: rgba(52, 199, 89, 0.1);
  color: #1A7A30;
  border: 1px solid rgba(52, 199, 89, 0.28);
}
.hw-cuda::before { background: #34C759; }

[data-theme="dark"] .hw-cuda {
  color: #4ADE80;
  background: rgba(52, 199, 89, 0.13);
  border-color: rgba(52, 199, 89, 0.25);
}

.hw-rocm {
  background: rgba(255, 149, 0, 0.1);
  color: #A05200;
  border: 1px solid rgba(255, 149, 0, 0.28);
}
.hw-rocm::before { background: #FF9500; }

[data-theme="dark"] .hw-rocm {
  color: #FFAA44;
  background: rgba(255, 149, 0, 0.13);
  border-color: rgba(255, 149, 0, 0.25);
}

.hw-mps {
  background: rgba(88, 86, 214, 0.1);
  color: #3634A3;
  border: 1px solid rgba(88, 86, 214, 0.28);
}
.hw-mps::before { background: #5856D6; }

[data-theme="dark"] .hw-mps {
  color: #A2A0FF;
  background: rgba(88, 86, 214, 0.13);
  border-color: rgba(88, 86, 214, 0.25);
}

.hw-cpu {
  background: var(--mac-badge-bg);
  color: var(--mac-text-muted);
  border: 1px solid var(--mac-border);
}
.hw-cpu::before { background: var(--mac-text-light); }

.theme-toggle {
  background: none;
  border: 1px solid var(--mac-border);
  border-radius: 8px;
  padding: 6px;
  cursor: pointer;
  color: var(--mac-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
}

.theme-toggle:hover {
  background: var(--mac-model-item-hover);
  color: var(--mac-text);
}

/* ============================================================
   Main Layout
   ============================================================ */
.app-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 24px 48px;
}

.grid-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 768px) {
  .grid-two-col {
    grid-template-columns: 1fr;
  }
}

.column {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.column-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mac-text-muted);
  padding: 0 2px;
}

/* ============================================================
   Card
   ============================================================ */
.mac-card {
  background: var(--mac-card);
  border-radius: var(--radius-card);
  box-shadow: var(--mac-shadow);
  border: 1px solid var(--mac-border);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.mac-card:hover {
  box-shadow: var(--mac-shadow-hover);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.2px;
  color: var(--mac-text);
}

.card-badge {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: var(--radius-badge);
  background: var(--mac-badge-bg);
  color: var(--mac-badge-text);
  letter-spacing: 0.01em;
}

/* ============================================================
   Drop Zone
   ============================================================ */
.drop-zone {
  border: 1.5px dashed var(--mac-drop-zone-border);
  border-radius: 12px;
  background: var(--mac-drop-zone-bg);
  padding: 28px 20px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  outline: none;
  position: relative;
}

.drop-zone:hover,
.drop-zone:focus-visible {
  border-color: var(--mac-primary);
  background: var(--mac-drop-zone-active);
}

.drop-zone.drag-over {
  border-color: var(--mac-drop-zone-border-active);
  background: var(--mac-drop-zone-active);
  transform: scale(1.005);
}

.drop-zone.has-file {
  display: none;
}

.drop-zone-icon {
  color: var(--mac-text-light);
  margin-bottom: 4px;
}

.drop-zone:hover .drop-zone-icon,
.drop-zone.drag-over .drop-zone-icon {
  color: var(--mac-primary);
}

.drop-zone-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--mac-text);
}

.drop-zone-hint {
  font-size: 11px;
  color: var(--mac-text-muted);
  margin-bottom: 10px;
}

/* ============================================================
   File Preview
   ============================================================ */
.file-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--mac-drop-zone-bg);
  border: 1px solid var(--mac-border);
  color: var(--mac-text-muted);
}

.file-preview .file-name {
  flex: 1;
  font-size: 13px;
  color: var(--mac-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================================
   Form Fields
   ============================================================ */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--mac-text-muted);
  letter-spacing: 0.01em;
}

.field-input {
  background: var(--mac-input-bg);
  border: 1px solid var(--mac-input-border);
  border-radius: var(--radius-input);
  padding: 9px 12px;
  font-size: 14px;
  color: var(--mac-text);
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.field-input::placeholder {
  color: var(--mac-text-light);
}

.field-input:focus {
  border-color: var(--mac-primary);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

.select-wrapper {
  position: relative;
}

.field-select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--mac-input-bg);
  border: 1px solid var(--mac-input-border);
  border-radius: var(--radius-input);
  padding: 9px 36px 9px 12px;
  font-size: 14px;
  color: var(--mac-text);
  font-family: inherit;
  outline: none;
  cursor: pointer;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.field-select:focus {
  border-color: var(--mac-primary);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

.select-chevron {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--mac-text-muted);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius-button);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), opacity var(--transition), transform 0.1s ease;
  user-select: none;
  white-space: nowrap;
}

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

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.btn-full {
  width: 100%;
}

.btn-primary {
  background: var(--mac-primary);
  color: #FFFFFF;
}

.btn-primary:hover:not(:disabled) {
  background: var(--mac-primary-hover);
}

.btn-primary:active:not(:disabled) {
  background: var(--mac-primary-active);
}

.btn-secondary {
  background: var(--mac-secondary);
  color: var(--mac-text);
  border: 1px solid var(--mac-secondary-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--mac-model-item-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--mac-primary);
  border: 1px solid var(--mac-primary);
  font-size: 13px;
  padding: 7px 16px;
}

.btn-ghost:hover {
  background: rgba(0, 113, 227, 0.06);
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--mac-text-muted);
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
  flex-shrink: 0;
}

.btn-icon:hover {
  color: var(--mac-destructive);
  background: rgba(255, 59, 48, 0.08);
}

/* Spinner */
.btn-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #FFFFFF;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================================
   Progress Bar
   ============================================================ */
.progress-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.progress-bar {
  height: 4px;
  background: var(--mac-progress-bg);
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--mac-primary) 0%, #34AADC 100%);
  border-radius: 2px;
  width: 0%;
  transition: width 0.3s ease;
}

.progress-text {
  font-size: 11px;
  color: var(--mac-text-muted);
  text-align: right;
}

/* ============================================================
   Song Source Tabs (Upload / YouTube)
   ============================================================ */
.source-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}

.source-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  border: 1.5px solid var(--mac-border);
  border-radius: 8px;
  background: var(--mac-input-bg);
  color: var(--mac-text-secondary);
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
}

.source-tab:hover {
  border-color: var(--mac-primary);
  color: var(--mac-text);
}

.source-tab.active {
  border-color: var(--mac-primary);
  background: rgba(0, 113, 227, 0.08);
  color: var(--mac-primary);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.10);
}

/* YouTube Input */
.yt-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.yt-url-input {
  flex: 1;
  height: 36px;
  padding: 0 10px;
  border: 1.5px solid var(--mac-border);
  border-radius: 8px;
  background: var(--mac-input-bg);
  color: var(--mac-text);
  font-family: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition);
}

.yt-url-input:focus {
  border-color: var(--mac-primary);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
}

.yt-url-input::placeholder {
  color: var(--mac-text-muted);
}

.yt-status {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--mac-text-muted);
}

.yt-status.error { color: #FF3B30; }
.yt-status.success { color: #34C759; }

/* ============================================================
   Model Type Toggle (kNN / RVC)
   ============================================================ */
.model-type-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.type-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 10px 8px;
  border: 1.5px solid var(--mac-border);
  border-radius: 10px;
  background: var(--mac-input-bg);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  font-family: inherit;
}

.type-btn:hover {
  border-color: var(--mac-primary);
  background: rgba(0, 113, 227, 0.04);
}

.type-btn.active {
  border-color: var(--mac-primary);
  background: rgba(0, 113, 227, 0.08);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
}

.type-icon { font-size: 18px; line-height: 1; }
.type-name { font-size: 13px; font-weight: 600; color: var(--mac-text); }
.type-desc { font-size: 10px; color: var(--mac-text-muted); }

/* RVC notice */
.rvc-notice {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255, 149, 0, 0.08);
  border: 1px solid rgba(255, 149, 0, 0.25);
  color: #A05200;
  font-size: 12px;
  line-height: 1.5;
}

[data-theme="dark"] .rvc-notice {
  background: rgba(255, 149, 0, 0.1);
  border-color: rgba(255, 149, 0, 0.2);
  color: #FFAA44;
}

.rvc-notice svg { flex-shrink: 0; margin-top: 1px; }

/* RVC multi-file list */
.rvc-file-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 140px;
  overflow-y: auto;
}

.rvc-file-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--mac-drop-zone-bg);
  border: 1px solid var(--mac-border);
  color: var(--mac-text-muted);
  font-size: 12px;
}

.rvc-file-name {
  flex: 1;
  color: var(--mac-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* RVC epochs field */
.rvc-only { /* shown/hidden via JS */ }

/* ============================================================
   Voice Model List
   ============================================================ */
.model-count-badge {
  min-width: 22px;
  height: 22px;
  border-radius: 11px;
  background: var(--mac-primary);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
  transition: background var(--transition);
}

.model-count-badge.empty {
  background: var(--mac-badge-bg);
  color: var(--mac-badge-text);
}

.model-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-height: 60px;
}

.model-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px 16px;
  color: var(--mac-text-light);
  font-size: 12px;
  text-align: center;
  list-style: none;
}

.model-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  transition: background var(--transition);
  cursor: default;
}

.model-item:hover {
  background: var(--mac-model-item-hover);
}

.model-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mac-primary) 0%, #34AADC 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.model-info {
  flex: 1;
  min-width: 0;
}

.model-name-row {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
}

.model-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--mac-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Model type badges */
.model-type-badge {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.badge-rvc {
  background: rgba(88, 86, 214, 0.15);
  color: #5856D6;
  border: 1px solid rgba(88, 86, 214, 0.3);
}
[data-theme="dark"] .badge-rvc { color: #A2A0FF; background: rgba(88,86,214,0.18); }

.badge-knn {
  background: rgba(0, 113, 227, 0.1);
  color: var(--mac-primary);
  border: 1px solid rgba(0, 113, 227, 0.25);
}

/* Training status badges */
.model-status-badge {
  font-size: 9px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}

.badge-ready {
  background: rgba(52, 199, 89, 0.12);
  color: #1A7A30;
  border: 1px solid rgba(52, 199, 89, 0.3);
}
[data-theme="dark"] .badge-ready { color: #4ADE80; background: rgba(52,199,89,0.15); }

.badge-training {
  background: rgba(255, 149, 0, 0.12);
  color: #A05200;
  border: 1px solid rgba(255, 149, 0, 0.3);
  animation: pulse 1.6s ease-in-out infinite;
}
[data-theme="dark"] .badge-training { color: #FFAA44; background: rgba(255,149,0,0.15); }

.badge-failed {
  background: rgba(255, 59, 48, 0.1);
  color: var(--mac-destructive);
  border: 1px solid rgba(255, 59, 48, 0.25);
}

/* Training progress bar inside model item */
.training-bar-wrap {
  height: 3px;
  background: var(--mac-progress-bg);
  border-radius: 2px;
  margin-top: 5px;
  overflow: hidden;
}

.training-progress {
  height: 100%;
  background: linear-gradient(90deg, #FF9500, #FFCC00);
  border-radius: 2px;
  transition: width 0.8s ease;
}

.model-date {
  font-size: 11px;
  color: var(--mac-text-muted);
  margin-top: 1px;
}

/* ============================================================
   Audio Player
   ============================================================ */
.audio-player {
  background: var(--mac-drop-zone-bg);
  border: 1px solid var(--mac-border);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.player-header {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--mac-text-muted);
}

.player-filename {
  flex: 1;
  font-size: 12px;
  color: var(--mac-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-play {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--mac-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  flex-shrink: 0;
  transition: background var(--transition), transform 0.1s ease;
}

.btn-play:hover {
  background: var(--mac-primary-hover);
}

.btn-play:active {
  transform: scale(0.94);
}

.player-timeline {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.timeline-scrubber {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--mac-progress-bg);
  outline: none;
  cursor: pointer;
}

.timeline-scrubber::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--mac-primary);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.timeline-scrubber::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.timeline-scrubber::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border: none;
  border-radius: 50%;
  background: var(--mac-primary);
  cursor: pointer;
}

.timeline-times {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--mac-text-muted);
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   Semitone Slider
   ============================================================ */
.semitone-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.semitone-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--mac-badge-bg);
  color: var(--mac-primary);
  min-width: 44px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.diffusion-hint {
  margin-left: auto;
  font-size: 11px;
  font-weight: 500;
  padding: 2px 7px;
  border-radius: 4px;
}
.hint-fast     { background: rgba(52,199,89,0.1);  color: #1A7A30; }
.hint-balanced { background: rgba(0,113,227,0.1);  color: var(--mac-primary); }
.hint-quality  { background: rgba(88,86,214,0.12); color: #5856D6; }
[data-theme="dark"] .hint-fast     { color: #4ADE80; }
[data-theme="dark"] .hint-quality  { color: #A2A0FF; }

.btn-reset-semitone {
  margin-left: auto;
  background: none;
  border: none;
  font-size: 11px;
  color: var(--mac-text-muted);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
}

.btn-reset-semitone:hover {
  color: var(--mac-primary);
  background: rgba(0, 113, 227, 0.07);
}

.semitone-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(to right,
    var(--mac-primary) 0%,
    var(--mac-primary) 50%,
    var(--mac-progress-bg) 50%,
    var(--mac-progress-bg) 100%
  );
  outline: none;
  cursor: pointer;
  margin: 6px 0 4px;
}

.semitone-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--mac-primary);
  border: 2px solid var(--mac-card);
  box-shadow: 0 1px 4px rgba(0,0,0,0.18);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.semitone-slider::-webkit-slider-thumb:hover { transform: scale(1.18); }

.semitone-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--mac-primary);
  border: 2px solid var(--mac-card);
  cursor: pointer;
}

.semitone-marks {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--mac-text-light);
}

/* ============================================================
   Output Section
   ============================================================ */
.output-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--mac-text-muted);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.output-divider::before,
.output-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--mac-border);
}

.output-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.output-player {
  border-color: rgba(52, 199, 89, 0.25);
  background: rgba(52, 199, 89, 0.04);
}

[data-theme="dark"] .output-player {
  border-color: rgba(52, 199, 89, 0.2);
  background: rgba(52, 199, 89, 0.06);
}

/* ============================================================
   Toast Notifications
   ============================================================ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
  pointer-events: none;
}

.toast {
  background: var(--mac-card);
  border: 1px solid var(--mac-border);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  font-size: 13px;
  color: var(--mac-text);
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 220px;
  max-width: 320px;
  pointer-events: auto;
  animation: toastIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.toast.toast-out {
  animation: toastOut 0.25s ease forwards;
}

.toast-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.toast-dot.success { background: var(--mac-success); }
.toast-dot.error   { background: var(--mac-destructive); }
.toast-dot.info    { background: var(--mac-primary); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(12px) scale(0.94); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to   { opacity: 0; transform: translateY(8px) scale(0.96); }
}

/* ============================================================
   Utilities
   ============================================================ */
.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

/* Voice gain slider thumb: green when positive, orange when negative */
#voiceGainSlider::-webkit-slider-thumb { background: var(--mac-primary); }
#voiceGainSlider.gain-positive::-webkit-slider-thumb { background: #34C759; }
#voiceGainSlider.gain-negative::-webkit-slider-thumb { background: #FF9500; }

/* ============================================================
   Output File Manager (Card R3)
   ============================================================ */
.output-count-badge {
  min-width: 22px;
  height: 22px;
  border-radius: 11px;
  background: var(--mac-primary);
  color: #FFF;
  font-size: 11px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
  transition: background var(--transition);
}
.output-count-badge.empty {
  background: var(--mac-badge-bg);
  color: var(--mac-badge-text);
}

/* Toolbar */
.output-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--mac-input-bg);
  border: 1px solid var(--mac-border);
}

.output-check-all-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--mac-text-muted);
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
}

.output-check-all-label input[type="checkbox"] {
  accent-color: var(--mac-primary);
  cursor: pointer;
}

.output-selected-info {
  flex: 1;
  font-size: 11px;
  color: var(--mac-primary);
  font-weight: 500;
}

.btn-danger-sm {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 59, 48, 0.1);
  color: var(--mac-destructive);
  border: 1px solid rgba(255, 59, 48, 0.25);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition);
  flex-shrink: 0;
}
.btn-danger-sm:hover:not(:disabled) { background: rgba(255, 59, 48, 0.18); }
.btn-danger-sm:disabled { opacity: 0.4; cursor: not-allowed; }

/* Output List */
.output-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 420px;
  overflow-y: auto;
}

.output-list-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 28px 16px;
  color: var(--mac-text-light);
  font-size: 12px;
  text-align: center;
}

/* Output Item */
.output-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: 10px;
  transition: background var(--transition);
}
.output-item:hover { background: var(--mac-model-item-hover); }

.output-check-wrap {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  cursor: pointer;
}
.output-check-wrap input[type="checkbox"] {
  accent-color: var(--mac-primary);
  cursor: pointer;
  width: 14px;
  height: 14px;
}

/* Mini Play Button */
.output-play-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--mac-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF;
  flex-shrink: 0;
  transition: background var(--transition), transform 0.1s ease;
}
.output-play-btn:hover { background: var(--mac-primary-hover); }
.output-play-btn:active { transform: scale(0.92); }
.output-play-btn.playing {
  background: #34C759;
  animation: pulse-green 1.8s ease-in-out infinite;
}
@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52,199,89,0.4); }
  50%       { box-shadow: 0 0 0 5px rgba(52,199,89,0); }
}

/* Info block */
.output-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.output-name-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.output-name-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--mac-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}

.output-meta {
  font-size: 10px;
  color: var(--mac-text-muted);
}

/* Inline rename input */
.output-rename-input {
  flex: 1;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  color: var(--mac-text);
  background: var(--mac-input-bg);
  border: 1px solid var(--mac-primary);
  border-radius: 5px;
  padding: 2px 6px;
  outline: none;
  box-shadow: 0 0 0 2px rgba(0, 113, 227, 0.15);
  width: 100%;
  min-width: 0;
}

/* Playback scrubber row */
.output-scrubber-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.output-scrubber {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 3px;
  border-radius: 2px;
  background: var(--mac-progress-bg);
  outline: none;
  cursor: pointer;
}
.output-scrubber::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #34C759;
  cursor: pointer;
}
.output-scrubber::-moz-range-thumb {
  width: 10px;
  height: 10px;
  border: none;
  border-radius: 50%;
  background: #34C759;
  cursor: pointer;
}
.output-times {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--mac-text-muted);
  font-variant-numeric: tabular-nums;
}

/* Action buttons on the right */
.output-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.output-action-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--mac-text-muted);
  padding: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
  text-decoration: none;
  flex-shrink: 0;
}
.output-action-btn:hover { color: var(--mac-text); background: var(--mac-model-item-hover); }

.output-rename-btn:hover { color: var(--mac-primary) !important; }

.output-lock-btn.locked { color: #FF9500; }
.output-lock-btn.locked:hover { color: #cc7800 !important; background: rgba(255,149,0,0.1) !important; }

.output-delete-btn:hover { color: var(--mac-destructive) !important; background: rgba(255,59,48,0.08) !important; }
.output-delete-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.output-delete-btn:disabled:hover { color: var(--mac-text-muted) !important; background: none !important; }