:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #242836;
  --border: #2e3344;
  --text: #e8eaef;
  --muted: #8b92a8;
  --accent: #6c8cff;
  --accent-hover: #5a7af0;
  --success: #3dd68c;
  --warning: #f5a623;
  --danger: #f56565;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 0.875rem; }

.app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 280px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.sidebar-header h1 { font-size: 1.1rem; font-weight: 600; }

.project-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.project-card {
  padding: 0.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  margin-bottom: 0.25rem;
  border: 1px solid transparent;
  transition: background 0.15s;
}

.project-card:hover { background: var(--surface2); }
.project-card.active { background: var(--surface2); border-color: var(--accent); }

.project-card-name { font-weight: 500; margin-bottom: 0.25rem; }
.project-card-meta { font-size: 0.8rem; color: var(--muted); display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }

.main { flex: 1; overflow-y: auto; padding: 1.5rem; }

.empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60vh;
  color: var(--muted);
}

.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.project-name-input {
  font-size: 1.5rem;
  font-weight: 600;
  background: transparent;
  border: none;
  color: var(--text);
  width: 100%;
  max-width: 400px;
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
}

.project-name-input:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

.header-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.panel h2 { font-size: 0.95rem; margin-bottom: 0.75rem; font-weight: 600; }

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
  font-size: 0.875rem;
}

.settings-grid label { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.settings-grid input[type="number"],
.settings-grid select {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 0.25rem 0.5rem;
}
.settings-grid input[type="number"] {
  width: 60px;
}

.btn {
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  cursor: pointer;
  font-size: 0.875rem;
  transition: background 0.15s;
}

.btn:hover { background: var(--border); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-hover); }
.btn.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn.danger:hover { background: rgba(245, 101, 101, 0.1); }
.btn.ghost { background: transparent; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--surface2);
  color: var(--muted);
  margin-left: 0.5rem;
}

.badge.running { background: rgba(108, 140, 255, 0.2); color: var(--accent); }
.badge.done { background: rgba(61, 214, 140, 0.2); color: var(--success); }
.badge.error { background: rgba(245, 101, 101, 0.2); color: var(--danger); }
.badge.stopped { background: rgba(245, 166, 35, 0.2); color: var(--warning); }

.add-files { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 768px) { .add-files { grid-template-columns: 1fr; } }

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.875rem;
  transition: border-color 0.15s, background 0.15s;
}

.drop-zone.dragover { border-color: var(--accent); background: rgba(108, 140, 255, 0.05); }
.drop-zone .link { color: var(--accent); cursor: pointer; text-decoration: underline; }

.text-form { display: flex; flex-direction: column; gap: 0.5rem; }
.text-name-hint { font-size: 0.75rem; margin-top: -0.25rem; }
.text-form input, .text-form textarea {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 0.5rem;
  font-family: inherit;
  font-size: 0.875rem;
}

.items-list { display: flex; flex-direction: column; gap: 0.5rem; }

.item-row {
  display: grid;
  grid-template-columns: 24px 1fr auto;
  gap: 0.75rem;
  align-items: start;
  padding: 0.75rem;
  background: var(--surface2);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.item-analysis {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.5rem;
}

.chip {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}

.chip.muted { color: var(--muted); }
.chip.voice { border-color: rgba(108, 140, 255, 0.4); color: var(--accent); }
.chip.sfx { border-color: rgba(61, 214, 140, 0.35); color: var(--success); font-size: 0.65rem; }

.item-row.dragging { opacity: 0.5; }
.item-row.drag-over { border-color: var(--accent); }

.drag-handle {
  cursor: grab;
  color: var(--muted);
  user-select: none;
  text-align: center;
}

.item-info { min-width: 0; }
.item-name { font-weight: 500; font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item-meta { font-size: 0.75rem; color: var(--muted); margin-top: 0.15rem; }

.progress-wrap { margin-top: 0.5rem; }
.progress-bar {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.3s;
}
.progress-label { font-size: 0.7rem; color: var(--muted); margin-top: 0.15rem; }

.item-actions { display: flex; gap: 0.25rem; flex-wrap: wrap; align-items: flex-start; justify-content: flex-end; }

.item-row audio { height: 28px; max-width: 235px; }

.mix-timeline {
  margin-top: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(15, 17, 23, 0.25);
  overflow: hidden;
}

.mix-timeline > summary {
  cursor: pointer;
  padding: 0.45rem 0.6rem;
  font-size: 0.8rem;
  color: var(--text);
  user-select: none;
}

.mix-timeline-body {
  padding: 0.5rem 0.6rem 0.6rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mix-timeline-row {
  display: grid;
  grid-template-columns: 2.2rem 1fr auto auto;
  gap: 0.5rem;
  align-items: baseline;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', monospace;
  font-size: 0.75rem;
  padding: 0.2rem 0;
  border-bottom: 1px solid rgba(46, 51, 68, 0.45);
}

.mix-timeline-row:last-child { border-bottom: none; }
.mix-timeline-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mix-timeline-time { white-space: nowrap; color: var(--text); }
.mix-timeline-idx { color: var(--muted); text-align: right; }
.mix-timeline-dur { white-space: nowrap; }

.card-actions { display: flex; gap: 0.25rem; margin-top: 0.5rem; }
dialog {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin: 0;
  max-width: calc(100vw - 2rem);
  max-height: calc(100vh - 2rem);
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1000;
}

dialog::backdrop {
  background: rgba(8, 10, 16, 0.72);
}

.dlg-edit-item-form {
  width: min(92vw, 960px);
  max-height: calc(100vh - 4rem);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.dlg-edit-item-header h3 {
  margin: 0;
  font-size: 1.1rem;
}

.system-banner {
  padding: 0.65rem 1rem;
  background: rgba(245, 166, 35, 0.15);
  border-bottom: 1px solid rgba(245, 166, 35, 0.35);
  color: var(--warning);
  font-size: 0.875rem;
}

.system-banner.danger {
  background: rgba(245, 101, 101, 0.12);
  border-bottom-color: rgba(245, 101, 101, 0.35);
  color: var(--danger);
}

.edit-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.edit-toolbar-label { font-size: 0.8rem; }
.edit-toolbar-sep { width: 1px; height: 1.25rem; background: var(--border); margin: 0 0.15rem; }
.edit-toolbar-select {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 0.3rem 0.45rem;
  font-size: 0.8rem;
}

.edit-diff-banner {
  margin-top: 0.5rem;
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius);
  background: rgba(108, 140, 255, 0.12);
  border: 1px solid rgba(108, 140, 255, 0.25);
  font-size: 0.85rem;
}

.edit-diff-banner.warn {
  background: rgba(245, 166, 35, 0.12);
  border-color: rgba(245, 166, 35, 0.3);
}

.edit-prep {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface2);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.edit-prep-header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  align-items: baseline;
}

.edit-prep-report {
  font-size: 0.82rem;
  line-height: 1.5;
}

.edit-prep-report .warn-item {
  color: var(--warning);
}

.edit-prep-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.82rem;
  align-items: center;
}

.edit-prep-options label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.edit-prep-range {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.edit-prep-actions,
.edit-prep-apply {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.edit-prep-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

@media (max-width: 720px) {
  .edit-prep-preview {
    grid-template-columns: 1fr;
  }
}

.edit-prep-snippet {
  margin: 0.25rem 0 0;
  padding: 0.5rem;
  max-height: 160px;
  overflow: auto;
  font-size: 0.75rem;
  line-height: 1.45;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  white-space: pre-wrap;
  word-break: break-word;
}

.editor-highlight-wrap {
  position: relative;
  flex: 1;
  min-height: min(60vh, 520px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface2);
  overflow: hidden;
}

.editor-highlight,
.dlg-edit-item-text {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.95rem;
  line-height: 1.65;
  padding: 1rem;
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
  tab-size: 2;
}

.editor-highlight {
  position: absolute;
  inset: 0;
  overflow: auto;
  pointer-events: none;
  color: var(--text);
  border: none;
  background: transparent;
}

.dlg-edit-item-text {
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: min(60vh, 520px);
  height: 100%;
  flex: 1;
  background: transparent;
  border: none;
  color: transparent;
  caret-color: var(--text);
  resize: vertical;
}

.editor-highlight-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(108, 140, 255, 0.2);
}

.marker-hl {
  color: #9eb4ff;
  background: rgba(108, 140, 255, 0.18);
  border-radius: 3px;
}

.edit-preview {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.preview-status { font-size: 0.85rem; margin-bottom: 0.35rem; }

.preview-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.preview-time { font-size: 0.8rem; margin-left: 0.25rem; }

.preview-timeline {
  display: flex;
  gap: 2px;
  height: 28px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--border);
  margin: 0.5rem 0;
}

.preview-timeline-seg {
  flex: 0 0 auto;
  min-width: 4px;
  background: rgba(108, 140, 255, 0.35);
  cursor: pointer;
  position: relative;
  transition: background 0.15s;
}

.preview-timeline-seg:hover { background: rgba(108, 140, 255, 0.55); }
.preview-timeline-seg.active { background: var(--accent); }
.preview-timeline-seg.played { background: rgba(61, 214, 140, 0.45); }

.preview-timeline-progress {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.25);
  pointer-events: none;
}

.preview-segment-list {
  max-height: 140px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: 0.35rem;
}

.preview-segment-row {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
  font-size: 0.8rem;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
}

.preview-segment-body {
  flex: 1;
  min-width: 0;
  cursor: pointer;
}

.preview-segment-row:hover .preview-segment-body { text-decoration: underline; }
.preview-segment-row.active { border-color: var(--accent); background: rgba(108, 140, 255, 0.1); }

.preview-seg-delete {
  flex-shrink: 0;
  padding: 0.1rem 0.35rem;
  line-height: 1.2;
}

.preview-cleanup-hint {
  font-size: 0.75rem;
  margin-top: 0.35rem;
}

.mixdown-bed-options {
  border-top: 1px solid var(--border);
  padding-top: 0.65rem;
}

.mixdown-bed-row { display: flex; gap: 0.5rem; align-items: center; font-size: 0.875rem; }
.mixdown-bed-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-top: 0.5rem;
}

.mixdown-item-list {
  max-height: 40vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem;
}

.mixdown-item-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.875rem;
}

.mixdown-item-row.disabled { opacity: 0.45; }

.dlg-edit-item-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  border: none;
}