:root {
  --bg: #0f1220;
  --card: #171a2b;
  --muted: #2a2f4b;
  --accent: #7dd3fc;
  --text: #e5e7eb;
  --green: #34d399;
  --red: #f87171;
  --yellow: #f59e0b;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font: 14px/1.45 system-ui, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 70% -10%, #1a1f3d 0%, #0f1220 55%, #0b0e1a 100%);
}

.topbar {
  padding: 14px 18px;
  border-bottom: 1px solid #222733;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.topbar h1 {
  margin: 0;
  font-size: 18px;
  letter-spacing: .2px;
}
.spacer { flex: 1; }

button, input[type="range"], select, input[type="number"] {
  accent-color: var(--accent);
}

button {
  background: var(--muted);
  color: var(--text);
  border: 1px solid #2b324e;
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
}
button:hover { filter: brightness(1.08); }
button:disabled { opacity: .5; cursor: not-allowed; }
button.primary { background: #1e293b; border-color: #334155; }
button.ok { background: #153224; border-color: #23523a; }
button.danger { background: #3a1d22; border-color: #5e2630; }
button.ghost { background: transparent; border-color: #2b324e; }

a.help {
  color: var(--text);
  text-decoration: none;
  border: 1px solid #2b324e;
  border-radius: 10px;
  padding: 8px 12px;
  background: #0e172a;
}

main {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 14px;
  padding: 14px;
}
@media (max-width: 1100px) {
  main { grid-template-columns: 1fr; }
}

.panel {
  background: var(--card);
  border: 1px solid #262b40;
  border-radius: 16px;
  padding: 14px;
  position: relative;
}
.panel.sub { background: #0f142a; }

.row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.row.between { justify-content: space-between; }
.row.wrap { flex-wrap: wrap; }
.row.gap { gap: 12px; }

.checkbox { display: inline-flex; align-items: center; gap: 6px; }
.badge {
  padding: 2px 6px;
  border-radius: 6px;
  background: #0e1328;
  border: 1px solid #222a44;
  font-size: 11px;
}
.pill {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #0e1429;
  border: 1px solid #223;
  opacity: .9;
}
.mono { font-variant-numeric: tabular-nums; }
.hint { opacity: .75; font-size: 12px; }

.seek { display: grid; gap: 6px; }
input[type="range"] { width: 100%; }

.mast-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.meters {
  height: 8px;
  background: #0b0e18;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #1f2440;
}
.meters > div {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #22c55e, #f59e0b 60%, #ef4444);
}

.clip-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  color: #fca5a5;
  border-color: #ef4444;
  background: #2a1214;
}

.tracks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 12px;
}
.track {
  background: #12162a;
  border: 1px solid #232a44;
  border-radius: 14px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.track h3 {
  margin: 0 0 4px 0;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-radius: 8px;
  padding: 2px 6px;
}
.track h3[contenteditable="true"] {
  outline: 1px dashed #3b82f6;
  background: #0f1631;
}
.track .meters { margin-top: 2px; }
.track .peak { font-size: 11px; opacity: .8; }
.track .muted { opacity: .55; }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.small { font-size: 12px; opacity: .9; }

.list {
  display: grid;
  gap: 6px;
  max-height: 220px;
  overflow: auto;
  padding-right: 4px;
}
.list .item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: #0f142a;
  border: 1px solid #1e2746;
  border-radius: 10px;
  padding: 6px 8px;
}

.footer {
  padding: 10px 16px;
  opacity: .7;
  font-size: 12px;
}

/* Help modal */
.modal {
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(3px);
  z-index: 1000;
}
.modal .card {
  max-width: 920px;
  width: min(92vw, 920px);
  max-height: 85vh;
  overflow: auto;
  background: #0f142a;
  border: 1px solid #22304a;
  border-radius: 16px;
  padding: 16px;
}
.modal h2 { margin: 0 0 6px 0; }
.modal .close { float: right; }

.code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: #0b0e18;
  border: 1px solid #1f2440;
  border-radius: 8px;
  padding: 6px 8px;
}

/* Inputs in header */
.topbar input[type="number"],
.topbar select {
  height: 34px;
  padding: 0 8px;
  border-radius: 8px;
  border: 1px solid #2b324e;
  background: #0e172a;
  color: var(--text);
}

/* File input look better */
#fileInput {
  padding: 6px;
  border: 1px solid #2b324e;
  border-radius: 10px;
  background: #0e172a;
  color: var(--text);
}

/* NoScript */
.noscript {
  background: #5a1d1d;
  color: #fff;
  padding: 8px 12px;
  text-align: center;
}