:root {
  --bg: #050914;
  --panel: #101a2f;
  --panel2: #14223c;
  --panel3: #0b1328;
  --line: #263a61;
  --text: #e8f0ff;
  --muted: #9fb0d3;
  --good: #24c389;
  --gold: #d9a536;
  --red: #f25a76;
  --blue: #6aa7ff;
  --cyan: #55ead4;
  --shadow: rgba(0,0,0,.45);
}
* { box-sizing: border-box; }
html, body { margin: 0; width: 100%; height: 100%; overflow: hidden; background: radial-gradient(circle at 50% 0%, #122047 0%, var(--bg) 45%, #02040a 100%); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Arial, sans-serif; }
button, input, select { font: inherit; }
button { cursor: pointer; }
.app-root { width: 100vw; height: 100vh; overflow: hidden; display: flex; justify-content: center; align-items: flex-start; }
.stage { width: 1920px; height: 1080px; transform-origin: top left; background: linear-gradient(135deg, rgba(9,15,31,.98), rgba(9,15,25,.96)); border: 1px solid #23345b; box-shadow: 0 30px 80px var(--shadow); display: grid; grid-template-rows: 90px 842px 128px; gap: 10px; padding: 12px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 10px 12px; background: linear-gradient(90deg, #0e1830, #141f38); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.brand-block { display: flex; align-items: center; gap: 14px; min-width: 0; }
.icon-only-brand { flex: 0 0 auto; min-width: 72px; justify-content: center; }
.music-logo { width: 64px; height: 64px; display: block; filter: drop-shadow(0 0 18px rgba(85,234,212,.22)); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.phase-badge { width: 68px; height: 58px; display: grid; place-items: center; border-radius: 18px; color: #061018; background: linear-gradient(135deg, #68f4df, #7eaffe); font-weight: 900; line-height: .9; letter-spacing: .05em; box-shadow: inset 0 -10px 20px rgba(0,0,0,.12); }
.phase-badge strong { font-size: 24px; }
h1 { margin: 0; font-size: 28px; letter-spacing: .01em; }
p { margin: 0; color: var(--muted); }
.transport { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px; max-width: 1700px; }
.btn { border: 1px solid var(--line); color: var(--text); background: #152242; padding: 8px 11px; border-radius: 12px; font-weight: 800; font-size: 13px; min-height: 36px; box-shadow: 0 8px 20px rgba(0,0,0,.22); }
.btn:hover { filter: brightness(1.12); }
.btn.primary { background: linear-gradient(180deg, #2b72ff, #1854bd); border-color: #4386ff; }
.btn.secondary { background: #172642; }
.btn.good { background: linear-gradient(180deg, #21b981, #147a5a); border-color: #36d99d; }
.btn.gold { background: linear-gradient(180deg, #e1b24a, #997016); border-color: #f4cb70; color: #11140f; }
.btn.danger { background: linear-gradient(180deg, #f25a76, #a51c37); border-color: #ff7891; }
.btn.big { font-size: 16px; padding: 12px 18px; }
.workspace { display: grid; grid-template-columns: 340px 1fr 376px; gap: 10px; min-height: 0; }
.panel { background: linear-gradient(180deg, rgba(18,30,55,.98), rgba(12,21,39,.98)); border: 1px solid var(--line); border-radius: 18px; padding: 12px; box-shadow: 0 14px 32px rgba(0,0,0,.28); min-height: 0; overflow: hidden; }
.panel-title-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 10px; }
h2 { margin: 0; font-size: 18px; }
h3 { margin: 0 0 6px; font-size: 14px; }
.pill, .phase-chip { color: #0b1222; background: linear-gradient(135deg, var(--cyan), #9ab8ff); border-radius: 999px; padding: 4px 9px; font-weight: 900; font-size: 11px; white-space: nowrap; }
label { display: grid; gap: 6px; color: var(--muted); font-weight: 800; font-size: 12px; margin: 9px 0; }
select, input[type="text"], input[type="range"] { width: 100%; }
select, input[type="text"] { color: var(--text); background: #0a1428; border: 1px solid var(--line); border-radius: 10px; padding: 8px 9px; min-height: 36px; }
output { color: var(--cyan); font-weight: 900; font-size: 12px; }
.split-row, .master-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.mini-card { margin-top: 10px; border: 1px solid #2b426d; background: rgba(6,12,25,.46); border-radius: 14px; padding: 10px; }
.mini-card p, .mini-card li { font-size: 12px; line-height: 1.35; }
.contract-card { min-height: 90px; }
.main-panel { display: grid; grid-template-rows: 190px 170px 1fr; gap: 10px; min-height: 0; }
.arranger-panel { overflow: hidden; }
.timeline { display: flex; gap: 8px; overflow-x: auto; padding: 4px 2px 8px; scrollbar-color: #416097 #0c1327; }
.section-card { position: relative; display: grid; align-content: start; gap: 3px; min-width: 126px; height: 88px; border-radius: 16px; border: 1px solid #304971; background: linear-gradient(180deg, #172a4c, #0f1a31); color: var(--text); padding: 9px; text-align: left; overflow: hidden; }
.section-card.active { outline: 2px solid var(--cyan); background: linear-gradient(180deg, #1e3b67, #12213f); }
.section-card.playing { box-shadow: 0 0 0 3px rgba(217,165,54,.65), 0 0 28px rgba(217,165,54,.35); }
.section-card h4 { margin: 0; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.small { color: var(--muted); font-size: 11px; line-height: 1.1; }
.section-energy { position: absolute; left: 0; bottom: 0; height: 4px; width: 100%; transform-origin: left; background: linear-gradient(90deg, var(--cyan), var(--gold), var(--red)); }
.arrange-controls { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.lanes-panel { display: grid; grid-template-rows: auto 1fr; }
.arranger-lanes { display: grid; gap: 6px; overflow: auto; padding-right: 4px; }
.lane-section { display: grid; grid-template-columns: 140px 1fr; gap: 7px; align-items: center; }
.lane-label { border: 1px solid #30476e; background: #0c1730; border-radius: 12px; padding: 7px; font-size: 12px; font-weight: 900; color: var(--text); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.lane-bars { display: grid; gap: 3px; min-width: 0; }
.lane-bar { height: 23px; border: 1px solid #263e6a; border-radius: 8px; background: #101d36; position: relative; overflow: hidden; }
.lane-bar::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: var(--energy, 50%); background: linear-gradient(90deg, rgba(85,234,212,.75), rgba(217,165,54,.78)); }
.lane-bar.fill::after { content: 'F'; position: absolute; right: 6px; top: 3px; color: #08111c; background: var(--gold); border-radius: 6px; padding: 0 4px; font-weight: 900; font-size: 11px; }
.grid-panel { display: grid; grid-template-rows: auto 24px 1fr; }
.meter-strip { display: grid; gap: 4px; align-items: center; }
.meter-cell { text-align: center; color: var(--muted); font-size: 11px; font-weight: 900; }
.pattern-grid { display: grid; grid-template-columns: 118px 1fr; gap: 6px; min-height: 0; }
.track-labels, .steps { display: grid; gap: 6px; }
.track-label { height: 38px; display: flex; align-items: center; padding: 0 8px; border-radius: 10px; background: #0d1730; border: 1px solid #283c64; color: var(--muted); font-size: 12px; font-weight: 900; }
.step-row { display: grid; gap: 4px; height: 38px; }
.step-cell { border-radius: 9px; border: 1px solid #253b63; background: #0a1328; min-width: 0; }
.step-cell.bar-start { border-color: #47709f; }
.step-cell.on { background: linear-gradient(180deg, #48dfc9, #167a75); border-color: #72ffe9; box-shadow: 0 0 10px rgba(85,234,212,.3); }
.step-cell.accent { background: linear-gradient(180deg, #ffe49a, #bd8421); border-color: #ffe49a; }
.step-cell.ghost { opacity: .65; }
.step-cell.playing { outline: 2px solid var(--gold); filter: brightness(1.3); }
.inspector-panel { display: grid; grid-template-rows: auto auto minmax(150px, 1fr) 176px 1fr; gap: 8px; overflow: hidden; }
.section-ops { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.section-inspector { min-height: 0; overflow: auto; padding-right: 2px; }
.inspector-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.metric { border: 1px solid #2d456d; background: rgba(6,13,28,.54); border-radius: 12px; padding: 8px; min-height: 48px; }
.metric strong { display: block; color: var(--cyan); font-size: 11px; }
.metric span { display: block; font-size: 12px; color: var(--text); margin-top: 3px; overflow-wrap: anywhere; }
.memory-card { margin-top: 0; }
.memory-actions { display: flex; gap: 6px; margin: 7px 0; }
.memory-actions .btn { flex: 1; padding-left: 5px; padding-right: 5px; }
#patternLibrarySelect { height: 84px; }
.candidates-card { margin-top: 0; min-height: 0; overflow: auto; }
.candidate-list { display: grid; gap: 6px; margin-top: 8px; }
.candidate-item { display: grid; grid-template-columns: 1fr auto; gap: 6px; align-items: center; border: 1px solid #30476e; border-radius: 12px; background: #0b152a; padding: 6px; font-size: 12px; }
.footer-panel { background: linear-gradient(90deg, #0e1830, #111d36); border: 1px solid var(--line); border-radius: 18px; padding: 10px 12px; display: grid; grid-template-columns: 1.1fr .9fr 1.2fr; gap: 12px; overflow: hidden; }
.status-line, .playhead-line { color: var(--muted); font-size: 13px; align-self: center; }
.status-line strong, .playhead-line strong { color: var(--text); }
.event-log { font-size: 11px; color: var(--muted); overflow: auto; border-left: 1px solid var(--line); padding-left: 10px; }
.event-log div { margin-bottom: 4px; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.68); display: none; align-items: center; justify-content: center; z-index: 20; }
.modal-backdrop.active { display: flex; }
.modal-card { width: 760px; background: linear-gradient(180deg, #17243f, #0d162a); border: 1px solid #36517b; border-radius: 24px; box-shadow: 0 30px 90px rgba(0,0,0,.55); padding: 22px; }
.modal-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 16px; }
.modal-head h2 { font-size: 24px; margin-bottom: 6px; }
.modal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }
@media (max-width: 1000px) {
  .stage { transform-origin: top left; }
}

/* Phase 3 deep bank additions retained in Phase 4 */
.inspector-panel { grid-template-rows: auto auto minmax(96px, .75fr) 262px 152px minmax(120px, 1fr); }
.bank-card { margin-top: 0; overflow: hidden; }
.bank-card label { margin: 5px 0; gap: 3px; }
.bank-card select { min-height: 30px; padding: 5px 7px; }
#bankVariantSelect { height: 74px; font-size: 11px; }
.bank-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 7px 0; }
.bank-actions .btn { padding-left: 5px; padding-right: 5px; }
.bank-card .small { min-height: 28px; }
.section-card .tags { color: var(--cyan); font-size: 10px; line-height: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.lane-bar.bank::after { content: 'B'; position: absolute; left: 5px; top: 3px; color: #061018; background: var(--cyan); border-radius: 6px; padding: 0 4px; font-weight: 900; font-size: 11px; }
.pattern-bank-pill { display:inline-block; color:#061018; background:linear-gradient(135deg, var(--cyan), #9ab8ff); border-radius:999px; padding:2px 6px; font-size:10px; font-weight:900; margin:2px 3px 0 0; }

/* Phase 4 Song Form Wizard additions */
.composer-panel { overflow: auto; padding-right: 10px; }
.form-card { border-color: #435f91; background: linear-gradient(180deg, rgba(18,35,67,.72), rgba(8,15,30,.72)); }
.compact-title { margin-bottom: 4px; }
.form-card label { margin: 5px 0; gap: 4px; }
.form-card select, .form-card input[type="text"], .form-card textarea { min-height: 30px; padding: 6px 8px; font-size: 12px; }
textarea { width: 100%; color: var(--text); background: #0a1428; border: 1px solid var(--line); border-radius: 10px; padding: 8px 9px; resize: vertical; min-height: 54px; }
.checkbox-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5px 8px; margin: 7px 0; }
.check-row { display: flex; align-items: center; gap: 6px; margin: 0; color: var(--muted); font-size: 11px; }
.check-row input { width: auto; accent-color: var(--cyan); }
.form-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 7px; }
.form-actions .btn { padding-left: 6px; padding-right: 6px; }
.form-blueprint { margin-top: 8px; border: 1px solid #2e4974; border-radius: 12px; background: rgba(3,8,18,.45); padding: 7px; max-height: 128px; overflow: auto; font-size: 11px; }
.blueprint-meta { color: var(--cyan); font-weight: 900; margin-bottom: 5px; }
.blueprint-row { display: flex; justify-content: space-between; gap: 8px; border-bottom: 1px solid rgba(85,234,212,.08); padding: 3px 0; color: var(--muted); }
.blueprint-row b { color: var(--gold); white-space: nowrap; }
.modal-card { max-height: 92vh; overflow: auto; }

/* Phase 5 Musical Rule Engine additions */
.inspector-panel { grid-template-rows: auto auto minmax(80px, .5fr) 250px 248px 142px minmax(90px, .65fr); overflow: auto; padding-right: 8px; }
.rule-card { margin-top: 0; overflow: auto; border-color: #3e6f69; background: linear-gradient(180deg, rgba(19,48,55,.74), rgba(8,17,30,.78)); }
.rule-card h3 { margin-bottom: 7px; }
.rule-card label { margin: 5px 0; gap: 4px; }
.rule-card select { min-height: 30px; padding: 5px 7px; font-size: 12px; }
.compact-checks { grid-template-columns: 1fr 1fr; gap: 4px 7px; margin: 6px 0; }
.compact-checks .check-row { font-size: 10.5px; }
.rule-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 7px 0; }
.rule-actions .btn { padding-left: 5px; padding-right: 5px; }
.coherence-panel { border: 1px solid #2e5c64; border-radius: 12px; background: rgba(3,9,18,.52); padding: 7px; font-size: 11px; color: var(--muted); max-height: 106px; overflow: auto; }
.score-row { display: flex; justify-content: space-between; gap: 8px; align-items: center; border-bottom: 1px solid rgba(85,234,212,.08); padding: 3px 0; }
.score-row strong { color: var(--cyan); }
.score-badge { border-radius: 999px; padding: 2px 7px; font-weight: 900; color: #061018; }
.good-score { background: #55ead4; }
.warn-score { background: #d9a536; }
.bad-score { background: #f25a76; color: #fff; }
.rule-summary { margin: 5px 0; }
.rule-issues { display: grid; gap: 3px; }
.rule-issues div { border-left: 2px solid rgba(85,234,212,.35); padding-left: 5px; }

/* Phase 6 Editable Section Composer */
.section-composer-card {
  border-color: rgba(79, 214, 255, .34);
  background: linear-gradient(180deg, rgba(79, 214, 255, .08), rgba(10, 14, 28, .76));
}
.composer-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.composer-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
  margin-top: 8px;
}
.lane-mute-toggles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin-top: 8px;
}
.lane-mute-toggles label {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 26px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  padding: 4px 7px;
  background: rgba(255,255,255,.04);
  font-size: 11px;
  color: #c7d3ee;
}
.composer-status {
  margin-top: 8px;
  padding: 8px;
  border-radius: 12px;
  background: rgba(0,0,0,.24);
  border: 1px solid rgba(255,255,255,.08);
  color: #aebce0;
  font-size: 11px;
  line-height: 1.35;
}
.lane-bar.override {
  outline: 2px solid rgba(79, 214, 255, .75);
  outline-offset: -2px;
}
.lane-bar.muted-section {
  opacity: .45;
}
.track-label.muted-row {
  color: #697794;
  text-decoration: line-through;
}
.step-row.muted-row {
  opacity: .44;
  filter: saturate(.65);
}
.step-cell.locked-anchor {
  box-shadow: inset 0 0 0 2px rgba(255, 210, 79, .8);
}
.step-cell.bar-override {
  border-color: rgba(79, 214, 255, .42);
}
.composer-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(79, 214, 255, .12);
  color: #d8f5ff;
  border: 1px solid rgba(79, 214, 255, .24);
}
@media (max-width: 1200px) {
  .composer-pair,
  .composer-actions,
  .lane-mute-toggles { grid-template-columns: 1fr; }
}


/* Phase 7 Bassline + Harmony Layer */
.harmony-card {
  border-color: rgba(217, 165, 54, .48);
  background: linear-gradient(180deg, rgba(217, 165, 54, .1), rgba(10, 14, 28, .76));
}
.harmony-card label { margin: 5px 0; gap: 4px; }
.harmony-card select { min-height: 30px; padding: 5px 7px; font-size: 12px; }
.harmony-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
  margin-top: 8px;
}
.harmony-actions .btn { padding-left: 5px; padding-right: 5px; }
.harmony-map {
  margin-top: 8px;
  padding: 8px;
  border-radius: 12px;
  border: 1px solid rgba(217, 165, 54, .25);
  background: rgba(0,0,0,.22);
  color: #b8c6e8;
  font-size: 11px;
  line-height: 1.35;
  max-height: 110px;
  overflow: auto;
}
.harmony-row { display:flex; justify-content:space-between; gap:8px; border-bottom:1px solid rgba(217,165,54,.12); padding:3px 0; }
.harmony-row strong { color: var(--gold); }
.harmony-chords { display:flex; flex-wrap:wrap; gap:5px; margin-top:6px; }
.harmony-chords span { display:inline-flex; border:1px solid rgba(85,234,212,.25); background:rgba(85,234,212,.08); border-radius:999px; padding:2px 7px; color:#d8f5ff; font-weight:900; }
.step-row:nth-child(8) .step-cell.on { background: linear-gradient(180deg, #caa4ff, #6d3bce); border-color: #d7b8ff; }

/* Phase 8 Melody Motif + Hook Generator */
.melody-card {
  border-color: rgba(255, 142, 220, .5);
  background: linear-gradient(180deg, rgba(255, 142, 220, .1), rgba(10, 14, 28, .78));
}
.melody-card label { margin: 5px 0; gap: 4px; }
.melody-card select { min-height: 30px; padding: 5px 7px; font-size: 12px; }
.melody-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
  margin-top: 8px;
}
.melody-actions .btn { padding-left: 5px; padding-right: 5px; }
.step-row:nth-child(9) .step-cell.on,
.step-row:nth-child(9) .step-cell.accent,
.step-row:nth-child(9) .step-cell.hold {
  background: linear-gradient(180deg, #ffb8ec, #b43b92);
  border-color: #ffd0f2;
  box-shadow: 0 0 10px rgba(255,142,220,.28);
}
.step-row:nth-child(10) .step-cell.on,
.step-row:nth-child(10) .step-cell.ghost {
  background: linear-gradient(180deg, #8cffb2, #218953);
  border-color: #b4ffd0;
  box-shadow: 0 0 10px rgba(36,195,137,.24);
}
.melody-card .harmony-row strong { color: #ffb8ec; }
.melody-card .harmony-map { border-color: rgba(255, 142, 220, .24); }


/* Phase 9 Transition Designer */
.transition-card {
  border-color: rgba(255, 214, 102, .24);
  background: linear-gradient(180deg, rgba(255, 214, 102, .08), rgba(123, 97, 255, .08));
}
.transition-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin-top: 8px;
}
.transition-actions .btn:first-child { grid-column: 1 / -1; }
.transition-map {
  margin-top: 8px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 12px;
  min-height: 68px;
  background: rgba(0, 0, 0, .18);
  font-size: 12px;
  color: var(--muted);
}
.transition-flags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 8px;
}
.transition-flags .flag {
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 999px;
  padding: 3px 7px;
  opacity: .52;
}
.transition-flags .flag.on {
  opacity: 1;
  color: #ffe08a;
  border-color: rgba(255, 214, 102, .45);
  background: rgba(255, 214, 102, .1);
}


/* Phase 10 Mix Console */
.mix-card {
  border-color: rgba(87, 214, 255, 0.34);
  background: linear-gradient(180deg, rgba(26, 43, 77, 0.72), rgba(12, 18, 34, 0.86));
}
.mix-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin: 8px 0;
}
.mix-console {
  display: grid;
  gap: 6px;
  max-height: 268px;
  overflow: auto;
  padding-right: 4px;
}
.mix-row {
  display: grid;
  grid-template-columns: 98px 1fr 1fr 56px 56px;
  gap: 5px;
  align-items: center;
  border: 1px solid rgba(159, 176, 211, 0.16);
  border-radius: 10px;
  padding: 6px;
  background: rgba(6, 10, 20, 0.45);
}
.mix-row-muted { opacity: .55; }
.mix-name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #f6f8ff;
  min-width: 0;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #9fb0d3;
  display: inline-block;
  box-shadow: 0 0 10px currentColor;
}
.dot.gold { color: #ffd166; background: #ffd166; }
.dot.red { color: #ff5a7a; background: #ff5a7a; }
.dot.cyan { color: #57d6ff; background: #57d6ff; }
.dot.blue { color: #6c8cff; background: #6c8cff; }
.dot.purple { color: #b071ff; background: #b071ff; }
.dot.pink { color: #ff7ad9; background: #ff7ad9; }
.dot.green { color: #64f4ac; background: #64f4ac; }
.mix-slider {
  display: grid;
  grid-template-columns: 28px 1fr 34px;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  color: #9fb0d3;
  margin: 0;
}
.mix-slider input { width: 100%; }
.mix-slider output { text-align: right; font-variant-numeric: tabular-nums; }
.btn.mini {
  min-height: 24px;
  padding: 4px 5px;
  font-size: 10px;
}
.mix-status {
  margin-top: 8px;
  color: #9fb0d3;
  font-size: 11px;
  line-height: 1.35;
}


/* Phase 11 Instrument Section Foundation */
.instrument-card { border-color: rgba(116, 255, 185, 0.26); }
.instrument-actions { display:grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap:8px; margin-top:10px; }
.instrument-map { margin-top:10px; border:1px solid rgba(116,255,185,.18); background:rgba(10,20,32,.72); border-radius:12px; padding:10px; min-height:88px; font-size:12px; color:#b8c6e6; display:grid; gap:6px; }
.track-label.green .dot, .dot.green { background:#74ffb9; }
.steps { max-height: 520px; overflow:auto; padding-right:4px; }
.track-labels { max-height: 520px; overflow:hidden; }
.mix-console { max-height: 430px; overflow:auto; padding-right:4px; }


/* Phase 12.0.2 UI/playback grid hotfix
   Keep row labels and cells inside one shared scroll area so lower Phase 11/12
   instrument lanes (saxophone, trumpet, trombone, etc.) stay visually aligned. */
.pattern-grid {
  overflow: auto;
  align-items: start;
  align-content: start;
  scrollbar-color: #416097 #0c1327;
  padding-right: 4px;
}
.pattern-grid .track-labels,
.pattern-grid .steps {
  max-height: none;
  overflow: visible;
  align-content: start;
}
.pattern-grid .track-labels {
  position: sticky;
  left: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(18,30,55,.98), rgba(12,21,39,.98));
}
.lane-section.playing .lane-label {
  outline: 2px solid rgba(217,165,54,.75);
  background: linear-gradient(180deg, #243b64, #10213d);
}


/* Phase 13.0.1 inspector recovery + generated-lane visibility
   The right sidebar is now one natural vertical scroller instead of a cramped
   fixed-row grid. This prevents Phase 11/12/13 cards from stacking into each
   other at 1920x1080 and keeps every new instrument control reachable. */
.inspector-panel {
  display: block;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 10px;
  scrollbar-gutter: stable;
}
.inspector-panel > .mini-card,
.inspector-panel > .section-inspector,
.inspector-panel > .section-ops {
  width: 100%;
  min-width: 0;
}
.inspector-panel .mini-card {
  position: relative;
  margin-top: 10px;
  max-height: none;
  overflow: visible;
}
.inspector-panel h3 {
  line-height: 1.2;
}
.inspector-panel select,
.inspector-panel input[type="text"],
.inspector-panel textarea {
  min-width: 0;
}
.instrument-card,
.voice-leading-card,
.string-composer-card {
  box-shadow: inset 0 0 0 1px rgba(85,234,212,.08);
}
.voice-leading-card,
.string-composer-card {
  scroll-margin-top: 12px;
}
.instrument-map,
.harmony-map,
.transition-map,
.coherence-panel,
.composer-status {
  max-height: 156px;
  overflow: auto;
}
.checkbox-grid.compact-checks {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.check-row {
  min-width: 0;
  overflow-wrap: anywhere;
}
.pattern-grid .step-cell.previewMerged,
.step-cell.previewMerged {
  outline: 1px dashed rgba(255,255,255,.24);
}
.footer-panel {
  grid-template-columns: 1.1fr .55fr 1.45fr;
}

/* Phase 14 Guitar + Plucked Instrument Engine */
.guitar-composer-card {
  border-color: rgba(217,165,54,.35);
  box-shadow: inset 0 0 0 1px rgba(217,165,54,.08);
  scroll-margin-top: 12px;
}
.guitar-composer-map {
  border-color: rgba(217,165,54,.22);
}
.guitar-actions .btn {
  min-width: 0;
}

/* Phase 15 Wind + Woodwind Composer */
.wind-composer-card {
  border-color: rgba(87, 214, 255, .35);
  box-shadow: inset 0 0 0 1px rgba(87, 214, 255, .08);
  scroll-margin-top: 12px;
  background: linear-gradient(180deg, rgba(87, 214, 255, .08), rgba(116, 255, 185, .06));
}
.wind-composer-map {
  border-color: rgba(87, 214, 255, .24);
}
.wind-actions .btn {
  min-width: 0;
}

/* Phase 16 Brass Composer */
.brass-composer-card {
  border-color: rgba(242, 90, 118, .42);
  box-shadow: inset 0 0 0 1px rgba(242, 90, 118, .10);
  scroll-margin-top: 12px;
  background: linear-gradient(180deg, rgba(242, 90, 118, .08), rgba(217, 165, 54, .06));
}
.brass-composer-map {
  border-color: rgba(242, 90, 118, .26);
}
.brass-actions .btn {
  min-width: 0;
}

/* Phase 17 Orchestration + Role Assignment AI */
.orchestration-card {
  border-color: rgba(116, 255, 185, .42);
  box-shadow: inset 0 0 0 1px rgba(116, 255, 185, .10);
  scroll-margin-top: 12px;
  background: linear-gradient(180deg, rgba(116, 255, 185, .08), rgba(85, 234, 212, .06));
}
.orchestration-map {
  border-color: rgba(116, 255, 185, .28);
}
.orchestration-actions .btn {
  min-width: 0;
}

/* Phase 18 Articulation, Human Feel, and Performance Engine */
.performance-card {
  border-color: rgba(118, 255, 214, 0.24);
  background: linear-gradient(180deg, rgba(118,255,214,0.08), rgba(11,16,32,0.94));
}
.performance-card h3 {
  color: #b8ffe9;
}
.performance-map {
  min-height: 120px;
  border-color: rgba(118,255,214,0.18);
}
.performance-actions .btn {
  min-width: 0;
}

/* Phase 19 Modern Effects + Genre Production Layer */
.production-card {
  border-color: rgba(217, 165, 54, 0.34);
  background: linear-gradient(180deg, rgba(217,165,54,0.10), rgba(11,16,32,0.94));
}
.production-card h3 {
  color: #ffe0a1;
}
.production-map {
  min-height: 120px;
  border-color: rgba(217,165,54,0.24);
}
.production-actions .btn {
  min-width: 0;
}

/* Phase 20 Full Composition Intelligence Pass */
.composition-card {
  border-color: rgba(176, 113, 255, 0.42);
  background: linear-gradient(180deg, rgba(176,113,255,0.12), rgba(11,16,32,0.94));
  box-shadow: inset 0 0 0 1px rgba(176,113,255,0.10);
  scroll-margin-top: 12px;
}
.composition-card h3 {
  color: #d9c2ff;
}
.composition-map {
  min-height: 140px;
  border-color: rgba(176,113,255,0.28);
}
.composition-actions {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.composition-actions .btn {
  min-width: 0;
}
.composition-actions #makeMusicalBtn,
.composition-actions #compositionAuditBtn {
  grid-column: span 1;
}

/* Phase 20.1 Composition Generation Presets */
.preset-card {
  border-color: rgba(255, 199, 89, 0.34);
  background: linear-gradient(180deg, rgba(255,199,89,0.08), rgba(68,91,255,0.06));
}
.composition-preset-desc {
  margin-top: 10px;
  padding: 10px;
  border: 1px solid rgba(159, 176, 211, 0.18);
  border-radius: 12px;
  background: rgba(9, 14, 28, 0.58);
  color: #b8c6e6;
  font-size: 12px;
  line-height: 1.45;
  max-height: 180px;
  overflow: auto;
}
.composition-preset-desc p { margin: 6px 0 8px; }
.composition-preset-desc .blueprint-meta { color: #ffd479; }

.advanced-lead-card { border-color: rgba(255, 124, 189, 0.36); }
.advanced-lead-card h3 { color: #ffd2e6; }


/* Diversify Phase 7.0.1 composer control unlock
   The left Composer Brain can now scroll independently after the preset/DNA/form
   cards expanded beyond the 1080p panel height. Native selects stay clickable
   and are not trapped by the panel's old overflow:hidden behavior. */
.composer-panel {
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 10px;
  scrollbar-gutter: stable;
  scrollbar-color: #416097 #0c1327;
}
.composer-panel select,
.composer-panel input,
.composer-panel button {
  position: relative;
  z-index: 3;
}
.composer-panel .mini-card {
  max-height: none;
  overflow: visible;
}


.template-workflow-card { border-color: rgba(255, 202, 120, .38); box-shadow: inset 0 0 0 1px rgba(255, 202, 120, .08); }
.template-workflow-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.queue-result-list { margin: 8px 0 0; padding-left: 20px; color: var(--muted); font-size: .85rem; }
.queue-result-list li { margin: 4px 0; }

.offline-render-card { border-color: rgba(111, 229, 255, 0.32); box-shadow: inset 0 0 0 1px rgba(111, 229, 255, 0.08); }
.offline-render-actions { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.offline-render-card .harmony-map { max-height: 220px; overflow: auto; }

/* Diversify Phase 12.0.3 MP3 export live status toast */
.mp3-export-toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 60;
  width: min(390px, calc(100vw - 28px));
  border: 1px solid rgba(85,234,212,.45);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(13,24,46,.96), rgba(5,11,22,.97));
  box-shadow: 0 20px 55px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.05) inset;
  padding: 12px 13px 13px;
  color: var(--text);
  pointer-events: none;
  transform: translateY(0);
  opacity: 1;
  transition: opacity .22s ease, transform .22s ease, border-color .22s ease;
}
.mp3-export-toast.hidden {
  opacity: 0;
  transform: translateY(14px);
}
.mp3-export-toast.success { border-color: rgba(85,234,212,.72); }
.mp3-export-toast.error { border-color: rgba(255,92,122,.72); }
.mp3-export-toast-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  margin-bottom: 6px;
}
.mp3-export-toast-head strong {
  color: var(--gold);
  font-size: 13px;
  letter-spacing: .02em;
}
#mp3ExportToastPhase {
  color: var(--cyan);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .08em;
  text-align: right;
}
.mp3-export-toast-message {
  font-size: 13px;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 8px;
}
.mp3-export-toast-detail {
  min-height: 14px;
  margin-top: 7px;
  color: var(--muted);
  font-size: 11px;
  overflow-wrap: anywhere;
}
.mp3-export-toast-bar {
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.08);
}
.mp3-export-toast-bar span {
  display: block;
  height: 100%;
  width: 4%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  transition: width .28s ease;
}
.mp3-export-toast.indeterminate .mp3-export-toast-bar span {
  width: 42%;
  animation: mp3ToastPulse 1.15s ease-in-out infinite alternate;
}
.mp3-export-toast.error .mp3-export-toast-bar span {
  background: linear-gradient(90deg, var(--red), var(--gold));
}
.blueprint-meta.warn { color: var(--gold); }
@keyframes mp3ToastPulse {
  from { transform: translateX(-20%); opacity: .55; }
  to { transform: translateX(135%); opacity: 1; }
}
@media (max-width: 700px) {
  .mp3-export-toast {
    right: 10px;
    left: 10px;
    bottom: 10px;
    width: auto;
  }
}


.phase13-stem-actions { margin-top: 8px; }
.phase13-stem-map { border-color: rgba(85, 234, 212, 0.28); }

/* Piano Music Phase 1 */
.piano-music-card {
  border-color: rgba(224, 190, 118, 0.42);
  background: linear-gradient(180deg, rgba(37, 31, 53, 0.84), rgba(18, 21, 34, 0.9));
}
.piano-music-card .harmony-map {
  border-color: rgba(224, 190, 118, 0.35);
}


/* Piano Music Phase 5.1 visibility/audit patch */
.icon-only-brand + .transport { flex: 1 1 auto; }
.grid-panel h2::after { content: ''; }
.track-label[title*='left-hand'], .track-label[title*='right-hand'], .track-label[title*='inner'] {
  color: var(--text);
  border-color: rgba(85,234,212,.55);
  background: linear-gradient(180deg, rgba(16,34,64,.96), rgba(9,20,42,.98));
}


/* Browser SoundFont Playback Audit Phase 3 UI recovery: compact sidebar dropdown, no page-destroying dock */
.browser-soundfont-status-dock {
  margin: 10px 0 12px;
  border: 1px solid rgba(255, 115, 115, 0.55);
  background: linear-gradient(135deg, rgba(74, 14, 24, 0.88), rgba(18, 28, 52, 0.92));
  color: #fff8ea;
  border-radius: 14px;
  padding: 0;
  box-shadow: 0 8px 22px rgba(0,0,0,.28);
  overflow: hidden;
  max-width: 100%;
  z-index: 1;
}
.browser-soundfont-status-dock summary {
  cursor: pointer;
  list-style: none;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.browser-soundfont-status-dock summary::-webkit-details-marker { display: none; }
.browser-soundfont-status-dock summary::after {
  content: '▾';
  font-size: 12px;
  color: #ffe08a;
  flex: 0 0 auto;
}
.browser-soundfont-status-dock:not([open]) summary::after { content: '▸'; }
.browser-soundfont-status-dock strong {
  display: block;
  color: #ffe08a;
  font-size: 13px;
  margin: 0 0 3px;
}
.browser-soundfont-status-dock #browserSoundfontStatusText {
  display: block;
  font-size: 11px;
  line-height: 1.25;
  font-weight: 700;
  color: #fff8ea;
}
.browser-soundfont-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 0 10px 10px;
}
.browser-soundfont-actions .btn { width: 100%; min-height: 34px; }
.browser-soundfont-audit-text {
  margin: 0 10px 10px;
  max-height: 120px;
  overflow: auto;
  white-space: pre-wrap;
  font-size: 11px;
  line-height: 1.25;
  color: #e8ffe8;
  background: rgba(0,0,0,.32);
  border-radius: 10px;
  padding: 8px;
}
.app-copyright {
  grid-column: 1 / -1;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  padding: 8px 0 2px;
  border-top: 1px solid rgba(126, 163, 255, 0.12);
}
#appRoot, .app-root, #stage, .stage { min-height: 0; }
body { overflow-x: hidden; }


/* Starter Library Phase 3: audition/debug panel + Composer Brain active config */
.starter-audit-card {
  border-color: rgba(255, 200, 87, 0.32);
}
.wrap-actions {
  flex-wrap: wrap;
  gap: 0.35rem;
}
.wrap-actions .btn {
  flex: 1 1 120px;
}

/* UI Phase 1 - Baseline Reset + Viewport Layout Contract
   Contract: body is viewport-locked; appRoot and stage fill viewport; no page-level
   vertical scroll; header and footer use fixed-height rows; workspace consumes the
   remaining space; panels and log areas scroll internally; no transform-based main
   layout scaling is used for the 100% baseline. */
:root {
  --ui-phase1-header-h: 88px;
  --ui-phase1-footer-h: 116px;
  --ui-phase1-gap: 8px;
  --ui-phase1-pad: 10px;
}
html,
body {
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  overflow: hidden !important;
}
body {
  position: fixed;
  inset: 0;
}
#appRoot,
.app-root {
  width: 100vw !important;
  height: 100vh !important;
  height: 100dvh !important;
  min-width: 0 !important;
  min-height: 0 !important;
  max-width: none !important;
  max-height: none !important;
  overflow: hidden !important;
  display: block !important;
  justify-content: initial !important;
  align-items: initial !important;
}
#stage,
.stage {
  width: 100% !important;
  height: 100% !important;
  min-width: 0 !important;
  min-height: 0 !important;
  max-width: none !important;
  max-height: none !important;
  transform: none !important;
  transform-origin: initial !important;
  display: grid !important;
  grid-template-rows: var(--ui-phase1-header-h) minmax(0, 1fr) var(--ui-phase1-footer-h) !important;
  gap: var(--ui-phase1-gap) !important;
  padding: var(--ui-phase1-pad) !important;
  overflow: hidden !important;
  border-radius: 0;
}
.topbar {
  height: 100%;
  min-height: 0;
  display: grid !important;
  grid-template-columns: minmax(150px, 220px) minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  overflow: hidden !important;
}
.site-brand,
.brand-block.site-brand {
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-width: 0;
  max-width: 220px;
  text-decoration: none;
  overflow: hidden;
}
.site-header-logo {
  width: 100%;
  max-width: 210px;
  max-height: 64px;
  height: auto;
  display: block;
  object-fit: contain;
  object-position: left center;
  background: transparent;
  filter: drop-shadow(0 0 14px rgba(85,234,212,.18));
}
.transport {
  min-width: 0;
  max-width: none !important;
  max-height: 100%;
  overflow: auto;
  scrollbar-width: thin;
  align-content: center;
  justify-content: flex-end;
  padding-right: 2px;
}
.transport .btn {
  flex: 0 0 auto;
  min-height: 32px;
  padding: 6px 9px;
  font-size: 12px;
}
.workspace {
  height: 100%;
  min-width: 0;
  min-height: 0;
  overflow: hidden !important;
  display: grid !important;
  grid-template-columns: minmax(296px, 340px) minmax(420px, 1fr) minmax(320px, 376px);
  gap: var(--ui-phase1-gap) !important;
}
.panel,
.main-panel,
.arranger-panel,
.lanes-panel,
.grid-panel,
.pattern-grid,
.track-labels,
.steps,
.footer-panel,
.event-log {
  min-width: 0;
  min-height: 0;
}
.panel {
  max-height: 100%;
  overflow: hidden;
}
.composer-panel,
.inspector-panel {
  overflow: auto !important;
  overscroll-behavior: contain;
}
.main-panel {
  height: 100%;
  overflow: hidden !important;
  grid-template-rows: minmax(126px, 178px) minmax(112px, 160px) minmax(0, 1fr) !important;
}
.arranger-panel,
.lanes-panel,
.grid-panel {
  overflow: hidden !important;
}
.arranger-lanes,
.pattern-grid,
.section-inspector,
.candidates-card,
.form-blueprint,
.browser-soundfont-audit-text {
  overscroll-behavior: contain;
}
.pattern-grid {
  overflow: auto !important;
}
.steps {
  overflow: visible;
}
.footer-panel {
  height: 100%;
  display: grid !important;
  grid-template-columns: minmax(180px, 1.05fr) minmax(130px, .65fr) minmax(210px, 1.5fr) max-content !important;
  align-items: stretch;
  gap: 10px !important;
  overflow: hidden !important;
}
.status-line,
.playhead-line {
  min-width: 0;
  overflow: hidden;
  align-self: center;
}
.status-line span,
.playhead-line span {
  overflow-wrap: anywhere;
}
.event-log {
  max-height: 100%;
  overflow: auto !important;
  padding-right: 6px;
}
.app-copyright {
  grid-column: auto !important;
  align-self: center;
  justify-self: end;
  white-space: nowrap;
  text-align: right;
  padding: 0 2px 0 10px !important;
  border-top: 0 !important;
  border-left: 1px solid rgba(126, 163, 255, 0.16);
}
.modal-backdrop {
  max-width: 100vw;
  max-height: 100vh;
  overflow: hidden;
}
.modal-card {
  max-width: min(760px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
}
@media (max-width: 1220px) {
  :root { --ui-phase1-header-h: 96px; --ui-phase1-footer-h: 124px; }
  .workspace {
    grid-template-columns: minmax(260px, 300px) minmax(360px, 1fr) minmax(260px, 320px);
  }
  .footer-panel {
    grid-template-columns: minmax(150px, .95fr) minmax(110px, .55fr) minmax(180px, 1.35fr) max-content !important;
  }
}
@media (max-width: 900px) {
  :root { --ui-phase1-header-h: 104px; --ui-phase1-footer-h: 132px; }
  .topbar { grid-template-columns: 150px minmax(0, 1fr); }
  .workspace { grid-template-columns: 280px minmax(360px, 1fr) 280px; overflow-x: auto !important; }
  .footer-panel { grid-template-columns: 1fr 1fr; grid-auto-rows: minmax(0, 1fr); }
  .event-log { grid-column: 1 / 2; }
  .app-copyright { grid-column: 2 / 3 !important; }
}

/* UI Phase 2 - Viewport Shell Rebuild
   Final-order shell contract: body -> appRoot -> stage is a real viewport app.
   The 100% app mode is not a transform-scaled poster. Header and footer occupy
   fixed rows; workspace owns the remaining row; old 1920 x 1080 dimensions are
   defeated here so browser zoom is not required. */
:root {
  --ui-phase2-pad: 8px;
  --ui-phase2-gap: 8px;
  --ui-phase2-header-h: 86px;
  --ui-phase2-footer-h: 104px;
  --ui-phase2-left-w: clamp(280px, 18vw, 348px);
  --ui-phase2-right-w: clamp(296px, 20vw, 372px);
  --ui-phase2-center-min: minmax(420px, 1fr);
}
html,
body {
  inline-size: 100%;
  block-size: 100%;
  min-inline-size: 0;
  min-block-size: 0;
  overflow: hidden !important;
  overscroll-behavior: none;
}
body {
  position: fixed;
  inset: 0;
}
#appRoot,
.app-root {
  inline-size: 100vw !important;
  block-size: 100vh !important;
  block-size: 100dvh !important;
  min-inline-size: 0 !important;
  min-block-size: 0 !important;
  max-inline-size: 100vw !important;
  max-block-size: 100vh !important;
  max-block-size: 100dvh !important;
  display: grid !important;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
  place-items: stretch;
  overflow: hidden !important;
  contain: layout size;
}
#stage,
.stage {
  grid-column: 1;
  grid-row: 1;
  inline-size: 100% !important;
  block-size: 100% !important;
  min-inline-size: 0 !important;
  min-block-size: 0 !important;
  max-inline-size: 100% !important;
  max-block-size: 100% !important;
  transform: none !important;
  scale: 1 !important;
  translate: none !important;
  rotate: none !important;
  transform-origin: center center !important;
  display: grid !important;
  grid-template-areas:
    "app-header"
    "app-workspace"
    "app-footer";
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: var(--ui-phase2-header-h) minmax(0, 1fr) var(--ui-phase2-footer-h) !important;
  gap: var(--ui-phase2-gap) !important;
  padding: var(--ui-phase2-pad) !important;
  overflow: hidden !important;
  border-radius: 0 !important;
  background-size: cover;
}
#stage > .topbar,
.stage > .topbar {
  grid-area: app-header;
  inline-size: 100%;
  block-size: 100%;
  min-inline-size: 0;
  min-block-size: 0;
}
#stage > .workspace,
.stage > .workspace {
  grid-area: app-workspace;
  inline-size: 100%;
  block-size: 100%;
  min-inline-size: 0;
  min-block-size: 0;
}
#stage > .footer-panel,
.stage > .footer-panel {
  grid-area: app-footer;
  inline-size: 100%;
  block-size: 100%;
  min-inline-size: 0;
  min-block-size: 0;
}
.topbar {
  display: grid !important;
  grid-template-columns: clamp(138px, 14vw, 220px) minmax(0, 1fr) !important;
  align-items: stretch;
  gap: var(--ui-phase2-gap) !important;
  padding: 8px 10px !important;
  overflow: hidden !important;
}
.site-brand,
.brand-block.site-brand {
  block-size: 100%;
  max-inline-size: 220px;
  min-inline-size: 0;
  display: flex;
  align-items: center;
}
.site-header-logo {
  inline-size: 100%;
  max-inline-size: 210px;
  max-block-size: calc(var(--ui-phase2-header-h) - 22px);
  object-fit: contain;
  object-position: left center;
}
.transport {
  inline-size: 100%;
  min-inline-size: 0;
  block-size: 100%;
  max-block-size: 100%;
  display: flex !important;
  flex-wrap: wrap;
  align-content: center;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  overflow: auto hidden !important;
  scrollbar-width: thin;
}
.workspace {
  display: grid !important;
  grid-template-columns: var(--ui-phase2-left-w) var(--ui-phase2-center-min) var(--ui-phase2-right-w) !important;
  grid-template-rows: minmax(0, 1fr);
  gap: var(--ui-phase2-gap) !important;
  overflow: hidden !important;
  contain: layout;
}
.workspace > .panel,
.workspace > .main-panel {
  min-inline-size: 0;
  min-block-size: 0;
  max-block-size: 100%;
}
.panel,
.main-panel,
.footer-panel {
  min-inline-size: 0;
  min-block-size: 0;
}
.footer-panel {
  display: grid !important;
  grid-template-columns: minmax(170px, .9fr) minmax(128px, .55fr) minmax(220px, 1.35fr) max-content !important;
  grid-template-rows: minmax(0, 1fr);
  align-items: stretch;
  gap: var(--ui-phase2-gap) !important;
  padding: 8px 10px !important;
  overflow: hidden !important;
}
.footer-panel > * {
  min-inline-size: 0;
  min-block-size: 0;
}
.status-line,
.playhead-line {
  display: flex;
  align-items: center;
  gap: 5px;
  overflow: hidden;
}
.status-line span,
.playhead-line span {
  min-inline-size: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.event-log {
  block-size: 100%;
  max-block-size: 100%;
  overflow: auto !important;
}
.app-copyright {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-inline-size: max-content;
}
@media (max-width: 1180px) {
  :root {
    --ui-phase2-header-h: 94px;
    --ui-phase2-footer-h: 112px;
    --ui-phase2-left-w: 272px;
    --ui-phase2-right-w: 286px;
    --ui-phase2-center-min: minmax(390px, 1fr);
  }
  .workspace {
    overflow-x: auto !important;
    overflow-y: hidden !important;
  }
  .workspace > .panel,
  .workspace > .main-panel {
    min-inline-size: 0;
  }
  .footer-panel {
    grid-template-columns: minmax(150px, .95fr) minmax(110px, .55fr) minmax(170px, 1.2fr) max-content !important;
  }
}
@media (max-width: 820px) {
  :root {
    --ui-phase2-header-h: 102px;
    --ui-phase2-footer-h: 128px;
  }
  .topbar {
    grid-template-columns: 142px minmax(0, 1fr) !important;
  }
  .footer-panel {
    grid-template-columns: minmax(0, 1fr) max-content !important;
    grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
  }
  .playhead-line {
    justify-content: flex-end;
  }
  .event-log {
    grid-column: 1 / 2;
  }
  .app-copyright {
    grid-column: 2 / 3 !important;
    grid-row: 2 / 3;
  }
}

/* UI Phase 3 - Internal Scroll Zones
   Scroll ownership contract: the app shell never becomes the vertical scroller.
   Composer left panel, center arrangement/grid regions, right section tools, and
   footer event log each own their overflow inside the Phase 2 viewport shell. */
:root {
  --ui-phase3-scrollbar-gutter: stable;
  --ui-phase3-center-arrangement-row: minmax(116px, 0.78fr);
  --ui-phase3-center-lanes-row: minmax(122px, 0.9fr);
  --ui-phase3-center-grid-row: minmax(220px, 1.75fr);
}
html,
body,
#appRoot,
.app-root,
#stage,
.stage,
.workspace {
  overflow: hidden !important;
}
#stage > .workspace,
.stage > .workspace {
  min-block-size: 0 !important;
  max-block-size: 100% !important;
}
.workspace > .composer-panel,
.workspace > .inspector-panel,
.workspace > .main-panel {
  block-size: 100%;
  max-block-size: 100%;
  min-block-size: 0 !important;
  min-inline-size: 0 !important;
}
.panel,
.main-panel {
  scrollbar-width: thin;
  scrollbar-color: rgba(85, 234, 212, 0.54) rgba(6, 12, 25, 0.7);
}
.panel::-webkit-scrollbar,
.main-panel::-webkit-scrollbar,
.event-log::-webkit-scrollbar,
.arranger-lanes::-webkit-scrollbar,
.timeline::-webkit-scrollbar,
.pattern-grid::-webkit-scrollbar,
.transport::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
.panel::-webkit-scrollbar-track,
.main-panel::-webkit-scrollbar-track,
.event-log::-webkit-scrollbar-track,
.arranger-lanes::-webkit-scrollbar-track,
.timeline::-webkit-scrollbar-track,
.pattern-grid::-webkit-scrollbar-track,
.transport::-webkit-scrollbar-track {
  background: rgba(6, 12, 25, 0.72);
  border-radius: 999px;
}
.panel::-webkit-scrollbar-thumb,
.main-panel::-webkit-scrollbar-thumb,
.event-log::-webkit-scrollbar-thumb,
.arranger-lanes::-webkit-scrollbar-thumb,
.timeline::-webkit-scrollbar-thumb,
.pattern-grid::-webkit-scrollbar-thumb,
.transport::-webkit-scrollbar-thumb {
  background: rgba(85, 234, 212, 0.46);
  border: 2px solid rgba(6, 12, 25, 0.72);
  border-radius: 999px;
}
/* Left Composer Brain: one internal vertical scroller. */
.composer-panel {
  overflow-y: auto !important;
  overflow-x: hidden !important;
  overscroll-behavior: contain;
  scrollbar-gutter: var(--ui-phase3-scrollbar-gutter);
  -webkit-overflow-scrolling: touch;
}
.composer-panel > * {
  min-inline-size: 0;
}
/* Center workspace: the middle column stays fixed in the viewport while its
   three functional regions own their own overflow. */
.main-panel {
  display: grid !important;
  grid-template-rows: var(--ui-phase3-center-arrangement-row) var(--ui-phase3-center-lanes-row) var(--ui-phase3-center-grid-row) !important;
  gap: var(--ui-phase2-gap, 8px) !important;
  overflow: hidden !important;
  min-block-size: 0 !important;
}
.main-panel > .panel {
  min-block-size: 0 !important;
  max-block-size: 100%;
  overflow: hidden !important;
}
.arranger-panel {
  display: grid !important;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 6px;
}
.arranger-panel .panel-title-row,
.lanes-panel .panel-title-row,
.grid-panel .panel-title-row {
  min-block-size: 0;
  margin-block-end: 0;
}
.timeline {
  min-block-size: 0 !important;
  max-block-size: 100%;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  overscroll-behavior-x: contain;
  scrollbar-gutter: var(--ui-phase3-scrollbar-gutter);
}
.arrange-controls {
  max-block-size: 64px;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  padding-block-end: 2px;
  overscroll-behavior: contain;
  scrollbar-gutter: var(--ui-phase3-scrollbar-gutter);
}
.lanes-panel {
  display: grid !important;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 6px;
}
.arranger-lanes {
  min-block-size: 0 !important;
  max-block-size: 100%;
  overflow: auto !important;
  overscroll-behavior: contain;
  scrollbar-gutter: var(--ui-phase3-scrollbar-gutter);
}
.lane-section,
.lane-bars,
.lane-bar {
  min-inline-size: 0;
}
.grid-panel {
  display: grid !important;
  grid-template-rows: auto auto minmax(0, 1fr) !important;
  gap: 6px;
  overflow: hidden !important;
}
.meter-strip {
  min-block-size: 0;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  scrollbar-gutter: var(--ui-phase3-scrollbar-gutter);
}
.pattern-grid {
  min-block-size: 0 !important;
  max-block-size: 100%;
  overflow: auto !important;
  align-content: start;
  overscroll-behavior: contain;
  scrollbar-gutter: var(--ui-phase3-scrollbar-gutter);
}
.track-labels,
.steps {
  align-content: start;
  min-block-size: min-content;
  max-block-size: none !important;
  overflow: visible !important;
}
.track-label,
.step-row {
  min-inline-size: 0;
}
.step-row {
  width: max(100%, max-content);
}
/* Right Section Tools: one internal vertical scroller. Nested right-panel cards
   are allowed to size naturally so the sidebar owns the scroll rather than the page. */
.inspector-panel {
  display: block !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  overscroll-behavior: contain;
  scrollbar-gutter: var(--ui-phase3-scrollbar-gutter);
  -webkit-overflow-scrolling: touch;
}
.inspector-panel > * {
  min-inline-size: 0;
}
.inspector-panel .section-inspector,
.inspector-panel .candidates-card,
.inspector-panel .rule-issues,
.inspector-panel .template-results,
.inspector-panel .instrument-map,
.inspector-panel .composition-map,
.inspector-panel .harmony-map,
.inspector-panel .mix-console,
.inspector-panel .steps {
  max-block-size: none;
  overflow: visible !important;
}
/* Footer: status and playhead remain fixed/ellipsized while the event log is
   the only footer element that scrolls vertically. */
.footer-panel {
  min-block-size: 0 !important;
  max-block-size: var(--ui-phase2-footer-h, 104px) !important;
  overflow: hidden !important;
}
.status-line,
.playhead-line,
.app-copyright {
  min-block-size: 0;
  overflow: hidden;
}
.event-log {
  min-block-size: 0 !important;
  block-size: 100%;
  max-block-size: 100%;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  overscroll-behavior: contain;
  scrollbar-gutter: var(--ui-phase3-scrollbar-gutter);
  padding-right: 6px;
}
.event-log div {
  overflow-wrap: anywhere;
}
@media (max-width: 1180px) {
  .workspace {
    overflow-x: auto !important;
    overflow-y: hidden !important;
    scrollbar-gutter: var(--ui-phase3-scrollbar-gutter);
  }
  .main-panel {
    min-inline-size: 390px;
  }
}
@media (max-height: 760px) {
  :root {
    --ui-phase3-center-arrangement-row: minmax(98px, 0.65fr);
    --ui-phase3-center-lanes-row: minmax(102px, 0.7fr);
    --ui-phase3-center-grid-row: minmax(180px, 1.65fr);
  }
  .arrange-controls {
    max-block-size: 52px;
  }
  .section-card {
    height: 76px;
  }
}