/* ==========================================================================
   W-Music Studio: Professional Audio Mastering Studio CSS - Pro Studio Dark
   ========================================================================== */

.mastering-studio-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 1400px;
  margin: 0 auto;
  color: var(--text-main, #f8fafc);
}

/* Hero Banner */
.mastering-hero-banner {
  background: linear-gradient(135deg, #090d16 0%, #111827 50%, #1e1b4b 100%);
  color: #fff;
  border-radius: 16px;
  padding: 24px 30px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  position: relative;
  overflow: hidden;
}

.mastering-hero-banner::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.mastering-hero-content {
  position: relative;
  z-index: 1;
}

.mastering-hero-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.mastering-pill-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  background: rgba(99, 102, 241, 0.2);
  border: 1px solid rgba(129, 140, 248, 0.35);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  color: #c7d2fe;
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}

.mastering-pill-tag .pulse-dot {
  width: 7px;
  height: 7px;
  background: #818cf8;
  border-radius: 50%;
  box-shadow: 0 0 10px #818cf8;
  animation: pulse 1.8s infinite;
}

.mastering-hero-banner h2 {
  margin: 0 0 6px;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: #ffffff;
}

.mastering-hero-banner p {
  margin: 0;
  color: #94a3b8;
  font-size: 14px;
  max-width: 820px;
  line-height: 1.5;
}

/* Source Loader Card */
.mastering-card {
  background: var(--bg-card, #131c31);
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08));
  border-radius: 14px;
  padding: 22px;
  box-shadow: var(--shadow-card, 0 6px 20px -4px rgba(0, 0, 0, 0.4));
}

.mastering-source-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 20px;
  align-items: stretch;
}

.mastering-dropzone {
  border: 2px dashed rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  padding: 26px 20px;
  text-align: center;
  background: rgba(0, 0, 0, 0.25);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.mastering-dropzone:hover,
.mastering-dropzone.dragover {
  border-color: #6366f1;
  background: rgba(99, 102, 241, 0.12);
}

.mastering-dropzone-icon {
  font-size: 36px;
  line-height: 1;
}

.mastering-dropzone-text strong {
  display: block;
  font-size: 14px;
  color: #ffffff;
  margin-bottom: 2px;
}

.mastering-dropzone-text small {
  color: #8492a6;
  font-size: 12px;
}

.mastering-catalog-box {
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
}

.mastering-catalog-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mastering-catalog-head strong {
  color: #ffffff;
}

.mastering-catalog-head .icon-bubble {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  display: grid;
  place-items: center;
  font-size: 16px;
}

.mastering-track-badge {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #090e18;
  color: #f8fafc;
  padding: 12px 16px;
  border-radius: 10px;
  margin-top: 14px;
  gap: 12px;
  flex-wrap: wrap;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.mastering-track-badge strong {
  color: #38bdf8;
  font-size: 14px;
}

.mastering-track-specs {
  display: flex;
  gap: 14px;
  font-size: 12px;
  color: #94a3b8;
}

.mastering-track-specs span {
  background: rgba(255, 255, 255, 0.08);
  padding: 3px 8px;
  border-radius: 5px;
}

/* Visualizer & Audio Player Rack */
.mastering-rack-display {
  background: #090e18;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 20px;
  color: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.6);
}

.mastering-visualizer-row {
  display: grid;
  grid-template-columns: 1fr 140px;
  gap: 16px;
  align-items: stretch;
}

.mastering-canvas-wrapper {
  background: #040711;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  height: 160px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mastering-canvas-wrapper canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.mastering-spectrum-labels {
  position: absolute;
  bottom: 4px;
  left: 10px;
  right: 10px;
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.3);
  pointer-events: none;
  font-family: monospace;
}

.mastering-meters-panel {
  background: #040711;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
}

.mastering-meter-title {
  font-size: 11px;
  color: #94a3b8;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  justify-content: space-between;
}

.mastering-vu-channels {
  display: flex;
  gap: 12px;
  flex: 1;
  justify-content: center;
}

.mastering-vu-ch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 22px;
}

.mastering-vu-track {
  width: 12px;
  flex: 1;
  background: #111827;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.mastering-vu-bar {
  width: 100%;
  height: 0%;
  background: linear-gradient(to top, #10b981 0%, #10b981 70%, #f59e0b 85%, #ef4444 100%);
  transition: height 0.05s ease;
  border-radius: 4px 4px 0 0;
}

.mastering-vu-label {
  font-size: 10px;
  font-weight: 700;
  color: #64748b;
}

.mastering-lufs-readout {
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-family: monospace;
  text-align: center;
  color: #38bdf8;
}

/* Audio Player Transport Bar */
.mastering-transport-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.mastering-btn-play {
  background: #6366f1;
  color: #fff;
  border: 0;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  font-size: 18px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.mastering-btn-play:hover {
  background: #4f46e5;
  transform: scale(1.05);
}

.mastering-btn-stop {
  background: rgba(255, 255, 255, 0.08);
  color: #94a3b8;
  border: 0;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.mastering-btn-stop:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.mastering-scrubber-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 200px;
}

.mastering-time-text {
  font-family: monospace;
  font-size: 12px;
  color: #94a3b8;
  white-space: nowrap;
}

.mastering-slider-track {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 3px;
  background: #111827;
  outline: none;
  cursor: pointer;
}

.mastering-slider-track::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #6366f1;
  cursor: pointer;
  box-shadow: 0 0 6px rgba(99, 102, 241, 0.6);
}

/* Master A/B Comparison Switch */
.mastering-ab-container {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.05);
  padding: 6px 12px;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.mastering-ab-label {
  font-size: 11px;
  color: #94a3b8;
  font-weight: 700;
  text-transform: uppercase;
}

.mastering-ab-toggle {
  display: flex;
  background: #040711;
  border-radius: 20px;
  padding: 2px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.mastering-ab-btn {
  border: 0;
  padding: 6px 14px;
  border-radius: 18px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  background: transparent;
  color: #64748b;
  transition: all 0.18s ease;
}

.mastering-ab-btn.active {
  background: #10b981;
  color: #fff;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.4);
}

.mastering-ab-btn.active.bypass {
  background: #f59e0b;
  color: #fff;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.4);
}

/* One-Click Presets Bar */
.mastering-presets-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mastering-presets-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mastering-presets-head strong {
  font-size: 14px;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mastering-presets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 10px;
}

.mastering-preset-card {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
  transition: all 0.18s ease;
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: left;
}

.mastering-preset-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.mastering-preset-card.active {
  background: rgba(99, 102, 241, 0.18);
  border-color: #6366f1;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.25);
}

.mastering-preset-card-title {
  font-size: 13px;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 6px;
}

.mastering-preset-card.active .mastering-preset-card-title {
  color: #c7d2fe;
}

.mastering-preset-card-desc {
  font-size: 11px;
  color: #8492a6;
  line-height: 1.35;
}

.mastering-preset-target {
  display: inline-block;
  align-self: flex-start;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: #cbd5e1;
  margin-top: 4px;
  font-family: monospace;
}

.mastering-preset-card.active .mastering-preset-target {
  background: rgba(99, 102, 241, 0.35);
  color: #ffffff;
}

/* Quick Vocal Match Guide Bar */
.mastering-vocal-guide-bar {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.mastering-vocal-guide-badge {
  font-size: 12px;
  font-weight: 700;
  color: #6ee7b7;
  display: flex;
  align-items: center;
  gap: 6px;
}

.mastering-vocal-guide-chips {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.mastering-vocal-chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  color: #f8fafc;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.mastering-vocal-chip small {
  font-size: 10px;
  color: #8492a6;
  font-weight: 400;
}

.mastering-vocal-chip:hover {
  background: #6366f1;
  color: #ffffff;
  border-color: #6366f1;
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(99, 102, 241, 0.35);
}

.mastering-vocal-chip:hover small {
  color: #e0e7ff;
}

.mastering-card-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 12px;
  width: fit-content;
  margin-bottom: 2px;
}

.mastering-card-tag.tag-pink {
  background: rgba(236, 72, 153, 0.2);
  color: #f472b6;
  border: 1px solid rgba(236, 72, 153, 0.4);
}

.mastering-card-tag.tag-blue {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.4);
}

.mastering-card-tag.tag-green {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.mastering-card-tag.tag-gold {
  background: rgba(234, 179, 8, 0.2);
  color: #facc15;
  border: 1px solid rgba(234, 179, 8, 0.4);
}

.mastering-card-tag.tag-amber {
  background: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.mastering-card-tag.tag-purple {
  background: rgba(168, 85, 247, 0.2);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.4);
}

.mastering-card-tag.tag-cyan {
  background: rgba(6, 182, 212, 0.2);
  color: #22d3ee;
  border: 1px solid rgba(6, 182, 212, 0.4);
}

.mastering-card-tag.tag-rose {
  background: rgba(244, 63, 94, 0.2);
  color: #fb7185;
  border: 1px solid rgba(244, 63, 94, 0.4);
}

.mastering-card-tag.tag-red {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.mastering-card-tag.tag-gray {
  background: rgba(148, 163, 184, 0.2);
  color: #cbd5e1;
  border: 1px solid rgba(148, 163, 184, 0.4);
}

/* Preset Category Filter Bar */
.mastering-preset-filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
}

.preset-filter-label {
  font-size: 11px;
  font-weight: 700;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.preset-filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.preset-filter-tab {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #cbd5e1;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.16s ease;
}

.preset-filter-tab:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: rgba(99, 102, 241, 0.4);
  color: #ffffff;
}

.preset-filter-tab.active {
  background: #6366f1;
  border-color: #818cf8;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}

/* Pulsing highlight effect when selected from guide */
@keyframes presetPulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
  50% { transform: scale(1.02); box-shadow: 0 0 0 10px rgba(99, 102, 241, 0); }
  100% { transform: scale(1); }
}

.mastering-preset-card.just-selected {
  animation: presetPulse 0.45s ease;
}

/* Mastering Signal Modules (Knobs / Sliders Rack) */
.mastering-modules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.mastering-module-card {
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mastering-module-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 8px;
}

.mastering-module-title strong {
  font-size: 13px;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 6px;
}

.mastering-module-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  text-transform: uppercase;
}

.mastering-control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mastering-control-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  color: #cbd5e1;
}

.mastering-control-value {
  font-family: monospace;
  font-size: 12px;
  font-weight: 700;
  color: #818cf8;
}

.mastering-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.12);
  outline: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.mastering-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #6366f1;
  cursor: pointer;
  box-shadow: 0 0 8px rgba(99, 102, 241, 0.5);
}

.mastering-select {
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  font-size: 12.5px;
  background: #0a0f1c;
  color: #f8fafc;
}

/* Action Export Bar */
.mastering-export-card {
  background: linear-gradient(135deg, #181c30 0%, #0d1222 100%);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.mastering-export-info h3 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 800;
  color: #ffffff;
}

.mastering-export-info p {
  margin: 0;
  color: #94a3b8;
  font-size: 12px;
}

.mastering-export-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.mastering-btn-export-wav {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #fff;
  border: 0;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
  transition: all 0.18s ease;
}

.mastering-btn-export-wav:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(16, 185, 129, 0.5);
}

.mastering-btn-export-ffmpeg {
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  color: #fff;
  border: 0;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
  transition: all 0.18s ease;
}

.mastering-btn-export-ffmpeg:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.5);
}

.mastering-btn-disabled {
  opacity: 0.5;
  cursor: not-allowed !important;
  pointer-events: none;
}

/* Audio Engineering Knowledge Guide */
.mastering-guide-accordion {
  background: var(--bg-card, #131c31);
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08));
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-card, 0 6px 20px -4px rgba(0, 0, 0, 0.4));
}

.mastering-guide-summary {
  padding: 16px 20px;
  font-weight: 700;
  font-size: 14px;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.02);
  user-select: none;
}

.mastering-guide-content {
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-secondary, #cbd5e1);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.mastering-guide-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  padding: 14px 16px;
}

.mastering-guide-box h4 {
  margin: 0 0 6px;
  font-size: 13px;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 6px;
}

.mastering-guide-box p {
  margin: 0;
  color: #8492a6;
  font-size: 12px;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .mastering-source-grid {
    grid-template-columns: 1fr;
  }
  .mastering-modules-grid {
    grid-template-columns: 1fr;
  }
  .mastering-guide-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mastering-visualizer-row {
    grid-template-columns: 1fr;
  }
  .mastering-meters-panel {
    height: 100px;
  }
  .mastering-transport-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .mastering-export-card {
    flex-direction: column;
    align-items: stretch;
  }
}