:root {
  color-scheme: light;
  --ink: #24231f;
  --muted: #66645c;
  --faint: #8a877d;
  --paper: #fbfaf6;
  --panel: #f3f1ea;
  --line: #d8d3c5;
  --green: #17795e;
  --green-soft: #dceee7;
  --blue: #2f6f9f;
  --blue-soft: #dce9f2;
  --amber: #a66718;
  --amber-soft: #f4e4c8;
  --red: #b84c3d;
  --red-soft: #f1dcd7;
  --khali: #79736a;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
}

.boot-error {
  margin: 12px auto;
  width: min(1120px, calc(100% - 32px));
  border: 1px solid var(--red);
  border-radius: 6px;
  background: var(--red-soft);
  color: #753126;
  padding: 10px 12px;
  font-size: 14px;
}

button,
select,
input {
  font: inherit;
}

.app {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
}

.top-controls {
  display: flex;
  align-items: end;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: end;
}

h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 30px;
  font-weight: 600;
  letter-spacing: 0;
}

p {
  margin: 6px 0 0;
  color: var(--muted);
}

.sa-picker,
.field,
.tempo-field {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

select,
input[type="file"] {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fffefa;
  color: var(--ink);
  padding: 7px 10px;
}

select {
  min-width: 140px;
}

.tabs {
  display: flex;
  gap: 4px;
  margin: 18px 0 22px;
  border-bottom: 1px solid var(--line);
}

.tab {
  min-width: 88px;
  min-height: 42px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.tab.active {
  color: var(--ink);
  border-bottom-color: var(--ink);
  font-weight: 650;
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.workbench {
  display: grid;
  grid-template-columns: minmax(260px, 330px) minmax(360px, 1fr);
  gap: 28px;
  align-items: center;
}

.side-panel {
  display: grid;
  align-content: start;
  gap: 18px;
}

.metadata {
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.45;
}

.metadata-row {
  display: grid;
  gap: 3px;
}

.metadata-row strong {
  color: var(--ink);
}

.legend {
  display: grid;
  gap: 9px;
  font-size: 13px;
  color: var(--muted);
}

.legend span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend i {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid var(--line);
}

.legend-in {
  background: var(--green-soft);
}

.legend-aroha {
  background: var(--blue-soft);
}

.legend-avroha {
  background: var(--amber-soft);
}

.legend-anchor {
  background: var(--amber);
}

.legend-active {
  background: var(--green);
}

.legend-neutral {
  background: var(--green);
}

.legend-played {
  background: var(--green);
}

.legend-sung {
  background: var(--blue);
}

.legend-match {
  background: var(--green);
  box-shadow: inset 0 0 0 3px #fffefa;
}

.circle-stage {
  display: grid;
  place-items: center;
  min-height: 520px;
}

canvas {
  width: min(100%, 520px);
  height: auto;
}

.switch-row {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 14px;
}

.primary-action {
  min-height: 42px;
  border: 1px solid #1d5f48;
  border-radius: 6px;
  background: var(--green);
  color: #fff;
  cursor: pointer;
  font-weight: 650;
}

.primary-action:disabled,
.secondary-action:disabled {
  background: #d7d3c8;
  border-color: #c5c0b4;
  color: #777268;
  cursor: not-allowed;
}

.practice-actions {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 10px;
}

.note-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.note-chip,
.icon-button {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fffefa;
  color: var(--ink);
  cursor: pointer;
  font-weight: 650;
}

.note-chip {
  min-width: 42px;
  min-height: 34px;
}

.note-chip.selected {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.note-chip:disabled {
  background: #e8e4da;
  color: var(--faint);
  cursor: not-allowed;
}

.expert-sections {
  display: grid;
  gap: 8px;
}

.section-action {
  display: grid;
  grid-template-columns: 1fr 48px 44px;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.section-action small {
  display: block;
  color: var(--faint);
  font-size: 11px;
  margin-top: 2px;
}

.icon-button {
  width: 100%;
  height: 34px;
  font-size: 12px;
}

.icon-button:disabled {
  background: #d7d3c8;
  color: #777268;
  cursor: not-allowed;
}

.capture-meter,
.mic-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.capture-meter i,
.mic-status i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--faint);
}

.capture-meter[data-status="active"] i,
.mic-status[data-status="listening"] i {
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(23, 121, 94, 0.14);
}

.mic-status[data-status="waiting"] i {
  background: var(--amber);
}

.mic-status[data-status="error"] i {
  background: var(--red);
}

.secondary-action {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fffefa;
  color: var(--ink);
  cursor: pointer;
  font-weight: 650;
}

.text-action {
  justify-self: start;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.text-action:hover {
  color: var(--ink);
}

.primary-action.listening,
.secondary-action.listening {
  background: var(--red);
  border-color: #863025;
  color: #fff;
}

.readout {
  min-height: 74px;
  border-left: 3px solid var(--line);
  padding: 8px 0 8px 13px;
  color: var(--muted);
  line-height: 1.45;
}

.readout.compact {
  min-height: 58px;
}

.calibration,
.confirm-row {
  display: grid;
  gap: 10px;
}

.confirm-row {
  grid-template-columns: 1fr 1fr;
}

.take-row {
  display: block;
  margin-top: 6px;
  padding: 6px 8px;
  border-radius: 6px;
  background: #fffefa;
  border: 1px solid var(--line);
  color: var(--muted);
}

.take-row.recommended {
  border-color: var(--green);
  background: var(--green-soft);
  color: var(--ink);
  font-weight: 650;
}

.distribution {
  display: grid;
  gap: 7px;
  font-size: 13px;
}

.phrase-strip {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 8px 0 2px;
  scrollbar-width: thin;
}

.phrase-note {
  min-width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fffefa;
  color: var(--muted);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 650;
}

.phrase-note.previous {
  background: var(--panel);
  color: var(--faint);
}

.phrase-note.next {
  border-color: var(--green);
  color: var(--ink);
}

.phrase-note.active {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
  transform: translateY(-2px);
}

.phrase-note.rest {
  background: var(--panel);
  color: var(--faint);
}

.timeline-canvas {
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #fffefa;
}

.practice-phase,
.score-panel {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fffefa;
  color: var(--ink);
  padding: 8px 10px;
  font-size: 13px;
}

.practice-phase[data-phase="countdown"] {
  border-color: var(--amber);
  background: var(--amber-soft);
}

.practice-phase[data-phase="singing"],
.practice-phase[data-phase="playing"] {
  border-color: var(--green);
  background: var(--green-soft);
}

.practice-phase[data-phase="pause"] {
  background: var(--panel);
  color: var(--muted);
}

.practice-phase[data-phase="completed"] {
  border-color: var(--blue);
  background: var(--blue-soft);
}

.score-panel {
  border-left: 3px solid var(--green);
}

.score-row {
  display: block;
  margin-top: 6px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fffefa;
}

.dist-row {
  display: grid;
  grid-template-columns: 74px 1fr 42px;
  gap: 8px;
  align-items: center;
}

.dist-bar {
  height: 8px;
  border-radius: 4px;
  background: var(--panel);
  overflow: hidden;
}

.dist-bar span {
  display: block;
  height: 100%;
  background: var(--green);
}

.transport {
  display: grid;
  gap: 14px;
}

.pitch-meter {
  display: grid;
  grid-template-columns: 34px 1fr 38px;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.meter-track {
  position: relative;
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--blue-soft), var(--green-soft) 45%, var(--green-soft) 55%, var(--red-soft));
  border: 1px solid var(--line);
}

.meter-center {
  position: absolute;
  top: -5px;
  bottom: -5px;
  left: 50%;
  width: 2px;
  background: var(--green);
  transform: translateX(-50%);
}

#pitch-cursor {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--green);
  border: 2px solid #fffefa;
  box-shadow: 0 1px 4px rgba(36, 35, 31, 0.22);
  opacity: 0;
  transform: translateX(-50%);
  transition: transform 180ms ease, opacity 140ms ease, background 140ms ease;
}

#pitch-cursor[data-state="low"] {
  background: var(--blue);
}

#pitch-cursor[data-state="high"] {
  background: var(--red);
}

#pitch-cursor[data-state="close"] {
  background: var(--amber);
}

input[type="range"] {
  width: 100%;
}

@media (max-width: 760px) {
  .app {
    width: min(100% - 22px, 640px);
    padding-top: 16px;
  }

  .topbar {
    align-items: start;
    flex-direction: column;
  }

  .top-controls {
    width: 100%;
    justify-content: start;
  }

  .tabs {
    overflow-x: auto;
  }

  .workbench {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .circle-stage {
    min-height: 360px;
    order: -1;
  }

  h1 {
    font-size: 26px;
  }
}