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

:root {
  --bg: #f8f9fc;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f1f5;
  --border: #e2e4ea;
  --text: #1a1a2e;
  --text-dim: #6b7085;
  --accent: #7c3aed;
  --accent-glow: rgba(124, 58, 237, 0.2);
  --accent2: #0891b2;
  --accent3: #e11d48;
  --success: #059669;
  --radius: 12px;
  --font: 'Space Grotesk', sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

.app { max-width: 900px; margin: 0 auto; padding: 2rem 1.5rem; }

/* === Header === */
header { text-align: center; margin-bottom: 1.5rem; }
header h1 { font-size: 2.5rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 0.25rem; }
.gradient-text { background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.subtitle { color: var(--text-dim); font-size: 1.05rem; }

/* ═══ MAIN TABS (Pre-prod / Post-prod) ═══ */
.main-tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.main-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-dim);
  box-shadow: var(--shadow);
}

.main-tab:hover {
  border-color: var(--accent);
  color: var(--text);
}

.main-tab.active {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(124,58,237,0.06), rgba(8,145,178,0.04));
  color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow), var(--shadow);
}

.main-tab-icon { font-size: 1.4rem; }
.main-tab-desc { font-size: 0.75rem; font-weight: 400; color: var(--text-dim); }

/* === Sub Tabs (upload/youtube) === */
.tabs {
  display: flex; gap: 0; margin-bottom: 1.5rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; background: var(--bg-card); box-shadow: var(--shadow);
}
.tab {
  flex: 1; padding: 0.75rem 1.5rem; background: transparent; border: none;
  color: var(--text-dim); font-family: var(--font); font-size: 0.95rem;
  font-weight: 500; cursor: pointer; transition: all 0.2s;
}
.tab:hover { color: var(--text); background: var(--bg-card-hover); }
.tab.active { background: var(--accent); color: white; }

/* === Drop Zone === */
.drop-zone {
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 3rem 2rem; text-align: center; transition: all 0.3s;
  cursor: pointer; background: var(--bg-card);
}
.drop-zone:hover, .drop-zone.drag-over { border-color: var(--accent); background: rgba(124,58,237,0.04); }
.drop-zone-icon { color: var(--accent); margin-bottom: 1rem; }
.drop-zone p { color: var(--text-dim); margin-bottom: 0.25rem; }
.drop-zone .small { font-size: 0.85rem; color: var(--text-dim); opacity: 0.7; margin-bottom: 1rem; }

/* === YouTube Input === */
.youtube-input { display: flex; gap: 0.75rem; }
.youtube-input input {
  flex: 1; padding: 0.85rem 1rem; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text); font-family: var(--mono); font-size: 0.9rem;
  outline: none; transition: border-color 0.2s; box-shadow: var(--shadow);
}
.youtube-input input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.hint { color: var(--text-dim); font-size: 0.85rem; margin-top: 0.75rem; }

/* === Buttons === */
.btn {
  padding: 0.75rem 1.5rem; border-radius: var(--radius);
  font-family: var(--font); font-size: 0.9rem; font-weight: 500;
  cursor: pointer; transition: all 0.2s; border: none; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: white; box-shadow: var(--shadow); }
.btn-primary:hover { background: #6d28d9; box-shadow: var(--shadow-lg); }
.btn-outline { background: var(--bg-card); border: 1px solid var(--border); color: var(--text); box-shadow: var(--shadow); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 0.4rem 0.7rem; font-size: 0.8rem; border-radius: 8px; }
.btn-lg { padding: 1rem 2rem; font-size: 1rem; width: 100%; }

.hidden { display: none !important; }

/* === Loading === */
.loading-section { text-align: center; padding: 3rem 0; }
.loader { display: flex; justify-content: center; gap: 0.5rem; margin-bottom: 1.5rem; }
.loader-ring {
  width: 16px; height: 16px; border: 2px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.loader-ring:nth-child(2) { animation-delay: 0.15s; }
.loader-ring:nth-child(3) { animation-delay: 0.3s; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-text { color: var(--text-dim); font-size: 0.95rem; }

/* === Results === */
.section-title { font-size: 1.3rem; font-weight: 600; margin-bottom: 1.5rem; }
.section-title span { color: var(--accent); }

.player-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1.5rem; box-shadow: var(--shadow);
}
.player-card audio { width: 100%; height: 36px; margin-bottom: 0.75rem; border-radius: 8px; outline: none; }
#waveformCanvas { width: 100%; height: 80px; border-radius: 8px; background: #f1f2f6; }

.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.metric-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem; text-align: center;
  transition: all 0.2s; box-shadow: var(--shadow);
}
.metric-card:hover { border-color: var(--accent); box-shadow: var(--shadow-lg); }
.metric-label { font-size: 0.8rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.35rem; }
.metric-value { font-size: 1.8rem; font-weight: 700; font-family: var(--mono); color: var(--accent); line-height: 1.2; }
.metric-sub { font-size: 0.8rem; color: var(--text-dim); margin-top: 0.2rem; }

.analysis-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }
.analysis-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow);
}
.analysis-card.full-width { margin-bottom: 1.5rem; }
.analysis-card h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 1rem; color: var(--text); }
#spectrumCanvas { width: 100%; height: 180px; border-radius: 8px; background: #f1f2f6; }

.char-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.65rem; }
.char-label { font-size: 0.82rem; color: var(--text-dim); width: 90px; flex-shrink: 0; }
.char-bar { flex: 1; height: 8px; background: #e8e9ee; border-radius: 4px; overflow: hidden; }
.char-fill { height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--accent), var(--accent2)); transition: width 0.8s ease; width: 0%; }
.char-value { font-family: var(--mono); font-size: 0.8rem; color: var(--text-dim); width: 36px; text-align: right; }

.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag { padding: 0.4rem 0.85rem; background: rgba(124,58,237,0.08); border: 1px solid rgba(124,58,237,0.2); border-radius: 20px; font-size: 0.82rem; color: var(--accent); font-weight: 500; }
.tag.secondary { background: rgba(8,145,178,0.08); border-color: rgba(8,145,178,0.2); color: var(--accent2); }

/* === Prompt Card === */
.prompt-card {
  background: var(--bg-card); border: 2px solid var(--accent);
  border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.5rem; box-shadow: var(--shadow-lg);
}
.prompt-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 1rem; color: var(--accent); }
.prompt-box {
  background: #f5f3ff; border: 1px solid rgba(124,58,237,0.15);
  border-radius: 8px; padding: 1rem; font-family: var(--mono);
  font-size: 0.88rem; line-height: 1.7; color: var(--text);
  margin-bottom: 1rem; white-space: pre-wrap; user-select: all;
}
.prompt-actions { display: flex; gap: 0.75rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.prompt-tips { border-top: 1px solid var(--border); padding-top: 1rem; }
.prompt-tips h4 { font-size: 0.85rem; color: var(--text-dim); margin-bottom: 0.5rem; }
.prompt-tips ul { list-style: none; padding: 0; }
.prompt-tips li { font-size: 0.85rem; color: var(--text-dim); padding: 0.2rem 0; }
.prompt-tips li::before { content: "-> "; color: var(--accent); font-weight: 600; }

/* === Prompt Studio === */
.studio-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.75rem; margin-bottom: 1.5rem; box-shadow: var(--shadow);
}
.studio-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 0.25rem; color: var(--accent); }
.studio-subtitle { color: var(--text-dim); font-size: 0.92rem; margin-bottom: 1.5rem; }
.studio-section { margin-bottom: 1.75rem; }
.studio-section h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.35rem; }
.studio-hint { color: var(--text-dim); font-size: 0.82rem; margin-bottom: 0.75rem; }
.studio-hint-inline { font-weight: 400; font-size: 0.78rem; color: var(--text-dim); }

#creativeInput {
  width: 100%; padding: 1rem; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text); font-family: var(--font); font-size: 0.92rem;
  line-height: 1.6; resize: vertical; outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
#creativeInput:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
#creativeInput::placeholder { color: var(--text-dim); opacity: 0.6; }

.inspo-group { margin-bottom: 0.75rem; display: flex; align-items: flex-start; gap: 0.5rem; }
.inspo-label { font-size: 0.78rem; color: var(--text-dim); font-weight: 500; white-space: nowrap; padding-top: 0.35rem; min-width: 70px; }
.inspo-chips { display: flex; flex-wrap: wrap; gap: 0.35rem; }

/* Inspo chip with tooltip */
.inspo-chip {
  position: relative;
  padding: 0.3rem 0.65rem; background: var(--bg);
  border: 1px solid var(--border); border-radius: 16px;
  font-family: var(--font); font-size: 0.78rem;
  color: var(--text-dim); cursor: pointer; transition: all 0.2s; white-space: nowrap;
}
.inspo-chip:hover { border-color: var(--accent); color: var(--accent); background: rgba(124,58,237,0.04); }
.inspo-chip.injected { background: rgba(124,58,237,0.1); border-color: var(--accent); color: var(--accent); transform: scale(0.95); }

/* Tooltip */
.inspo-chip[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: white;
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  font-size: 0.75rem;
  line-height: 1.4;
  width: max-content;
  max-width: 280px;
  white-space: normal;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 100;
  box-shadow: var(--shadow-lg);
}
.inspo-chip[data-tip]::before {
  content: '';
  position: absolute;
  bottom: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--text);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 100;
}
.inspo-chip[data-tip]:hover::after,
.inspo-chip[data-tip]:hover::before {
  opacity: 1;
}

/* Prompt Card Headers (numbered) */
.prompt-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.prompt-card-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.prompt-card-number.final-number {
  background: var(--success);
  font-size: 1.1rem;
}

.prompt-card-desc {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 0.1rem;
}

.prompt-card h3 {
  margin-bottom: 0;
}

/* Final Prompt Card */
.final-prompt-card {
  background: var(--bg-card);
  border: 2px solid var(--success);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 15px rgba(5, 150, 105, 0.12);
}

.final-prompt-card h3 {
  color: var(--success);
}

/* Fusion CTA */
.fusion-cta {
  text-align: center;
  padding: 1.25rem 0;
  position: relative;
}

.fusion-arrow {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.btn-fusion {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: white;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-fusion:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(124, 58, 237, 0.35);
}

.btn-fusion:active {
  transform: translateY(0);
}

.btn-fusion.fusing {
  animation: pulse-fusion 0.6s ease;
}

@keyframes pulse-fusion {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.fusion-icon {
  font-size: 1.2rem;
}

.fusion-hint {
  color: var(--text-dim);
  font-size: 0.82rem;
  margin-top: 0.6rem;
}

.fusion-hint.success {
  color: var(--success);
  font-weight: 500;
}

/* Final Prompt Section */
.final-prompt-section {
  background: var(--bg); border: 2px solid var(--accent);
  border-radius: var(--radius); padding: 1.25rem; margin-top: 1rem;
}
.final-prompt-section h3 { font-size: 1rem; font-weight: 600; color: var(--accent); margin-bottom: 0.25rem; }
.prompt-output-tabs {
  display: flex; gap: 0; margin-bottom: 1rem; margin-top: 0.75rem;
  border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
}
.prompt-tab {
  flex: 1; padding: 0.55rem 1rem; background: transparent; border: none;
  color: var(--text-dim); font-family: var(--font); font-size: 0.85rem;
  font-weight: 500; cursor: pointer; transition: all 0.2s;
}
.prompt-tab:hover { background: var(--bg-card-hover); }
.prompt-tab.active { background: var(--accent); color: white; }
.prompt-output { margin-bottom: 1rem; }
.btn-copy-inline { margin-top: 0.5rem; }
.prompt-box.final { background: #f5f3ff; border: 1px solid rgba(124,58,237,0.15); min-height: 80px; }

/* ═══════════════════════════════ */
/* ═══ POST-PROD / AUDIO EDITOR ═══ */
/* ═══════════════════════════════ */

.editor-section { margin-bottom: 2rem; }
.editor-import { margin-bottom: 1.5rem; }
.editor-import .drop-zone { padding: 2rem 1.5rem; }

/* Timeline */
.editor-timeline {
  margin-bottom: 1.5rem;
  min-height: 80px;
}

.timeline-empty {
  text-align: center;
  padding: 2rem;
  color: var(--text-dim);
  font-size: 0.9rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.track-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  transition: all 0.2s;
  box-shadow: var(--shadow);
}
.track-item:hover { border-color: var(--accent); }
.track-item.dragging { opacity: 0.5; }
.track-item.drag-target { border-color: var(--accent2); border-style: dashed; }

.track-handle {
  cursor: grab;
  color: var(--text-dim);
  font-size: 1.1rem;
  user-select: none;
  padding: 0 0.25rem;
}
.track-handle:active { cursor: grabbing; }

.track-info { min-width: 120px; flex-shrink: 0; }
.track-name { font-size: 0.85rem; font-weight: 500; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 140px; }
.track-duration { font-size: 0.75rem; color: var(--text-dim); font-family: var(--mono); }

.track-waveform-container {
  flex: 1;
  position: relative;
  height: 60px;
  border-radius: 8px;
  overflow: hidden;
  background: #f1f2f6;
}

.track-waveform {
  width: 100%;
  height: 100%;
  display: block;
}

.track-region {
  position: absolute;
  top: 0; height: 100%;
  background: rgba(124,58,237,0.08);
  border-left: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
  pointer-events: none;
}

.track-trim-left, .track-trim-right {
  position: absolute;
  top: 0; width: 10px; height: 100%;
  cursor: col-resize;
  z-index: 10;
}
.track-trim-left { margin-left: -5px; }
.track-trim-right { margin-left: -5px; }
.track-trim-left:hover, .track-trim-right:hover { background: rgba(124,58,237,0.15); }

/* Playhead cursor */
.track-playhead {
  position: absolute;
  top: 0; width: 2px; height: 100%;
  background: #e11d48;
  z-index: 15;
  pointer-events: none;
  left: 0;
  display: none;
  box-shadow: 0 0 4px rgba(225, 29, 72, 0.5);
}
.track-playhead.active { display: block; }

/* Selection overlay */
.track-selection {
  position: absolute;
  top: 0; height: 100%;
  background: rgba(8, 145, 178, 0.2);
  border: 1px solid var(--accent2);
  z-index: 5;
  pointer-events: none;
  display: none;
}
.track-selection.active { display: block; }

/* Selection action buttons — separate bar below track */
.selection-actions {
  display: flex;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  margin: -0.25rem 0 0.5rem 0;
  background: rgba(8, 145, 178, 0.06);
  border: 1px solid rgba(8, 145, 178, 0.2);
  border-radius: 8px;
  align-items: center;
}
.selection-actions .btn {
  font-size: 0.78rem;
  padding: 0.25rem 0.6rem;
}

/* Track volume slider */
.track-volume-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  min-width: 100px;
  flex-shrink: 0;
}
.track-volume-row .vol-icon {
  font-size: 0.85rem;
  color: var(--text-dim);
  cursor: pointer;
}
.track-volume-row .vol-icon:hover { color: var(--accent); }
.track-volume-row input[type="range"] {
  width: 70px;
  accent-color: var(--accent);
  height: 4px;
}
.track-volume-row .vol-val {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  min-width: 28px;
  text-align: right;
}

/* Track audio process buttons */
.track-process {
  display: flex;
  gap: 0.25rem;
  flex-shrink: 0;
}
.track-process .btn {
  font-size: 0.72rem;
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  white-space: nowrap;
}
.track-process .btn.active-process {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* Track type badge */
.track-type-badge {
  display: inline-block;
  font-size: 0.65rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.track-type-badge.audio { background: rgba(124,58,237,0.1); color: var(--accent); }
.track-type-badge.video { background: rgba(225,29,72,0.1); color: var(--accent3); }

/* Track offset input (overlay mode) */
.track-offset-row {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.25rem;
}
.track-offset-row label {
  font-size: 0.7rem;
  color: var(--text-dim);
  white-space: nowrap;
}
.track-offset-input {
  width: 50px;
  padding: 0.15rem 0.3rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--accent);
  text-align: center;
  outline: none;
}
.track-offset-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

/* Mix mode toggle */
.mix-mode-toggle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.mix-mode-label {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-weight: 500;
}
.mix-mode-btns {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.mix-mode-btn {
  border-radius: 0 !important;
  border: none !important;
  background: var(--bg-card);
  color: var(--text-dim);
  font-size: 0.8rem !important;
  padding: 0.4rem 0.8rem !important;
  transition: all 0.2s;
}
.mix-mode-btn:hover { background: var(--bg-card-hover); color: var(--text); }
.mix-mode-btn.active {
  background: var(--accent) !important;
  color: white !important;
}

.track-actions { display: flex; gap: 0.35rem; flex-shrink: 0; }

/* Editor Controls */
.editor-controls {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.editor-controls-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.editor-total-time {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 600;
  margin-left: auto;
}

.editor-field {
  flex: 1;
  min-width: 200px;
}
.editor-field label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
  font-weight: 500;
}
.editor-field select, .editor-field input[type="text"] {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.88rem;
  color: var(--text);
  outline: none;
}
.editor-field select:focus, .editor-field input[type="text"]:focus {
  border-color: var(--accent);
}

.range-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.range-row input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}
.range-row span {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  min-width: 30px;
}

.editor-export {
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
  margin-top: 0.5rem;
}
.editor-export h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1rem;
}
.export-row { display: flex; gap: 1rem; margin-bottom: 0.75rem; }

.export-progress {
  margin-top: 1rem;
}
.export-progress-bar {
  height: 6px;
  background: #e8e9ee;
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.35rem;
}
.export-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 3px;
  transition: width 0.3s;
  width: 0%;
}
.export-progress-text {
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* === Footer === */
footer { text-align: center; padding: 2rem 0 1rem; color: var(--text-dim); font-size: 0.82rem; }

/* === Toast === */
.toast {
  position: fixed; bottom: 2rem; left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--success); color: white;
  padding: 0.75rem 1.5rem; border-radius: var(--radius);
  font-weight: 500; opacity: 0; transition: all 0.3s;
  z-index: 1000; box-shadow: var(--shadow-lg);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* === Responsive === */
@media (max-width: 768px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .analysis-grid { grid-template-columns: 1fr; }
  header h1 { font-size: 1.8rem; }
  .main-tabs { flex-direction: column; }
  .track-info { min-width: 80px; }
  .track-name { max-width: 80px; }
}

@media (max-width: 480px) {
  .app { padding: 1rem; }
  .youtube-input { flex-direction: column; }
  .export-row { flex-direction: column; }
  .editor-controls-row { flex-direction: column; }
}