:root {
  color-scheme: dark;
  --bg: #06131d;
  --panel: rgba(10, 25, 36, 0.78);
  --panel-border: rgba(141, 198, 255, 0.14);
  --text: #f3f7fb;
  --muted: rgba(243, 247, 251, 0.7);
  --accent: #73e0a9;
  --accent-strong: #a8f2cd;
  --click: #ffb86b;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(115, 224, 169, 0.08), transparent 28%),
    radial-gradient(circle at top right, rgba(136, 214, 255, 0.12), transparent 30%),
    linear-gradient(180deg, #0b1924 0%, #06131d 65%, #050d14 100%);
  color: var(--text);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65), transparent 85%);
}

body.app-fullscreen-active {
  overflow: hidden;
}

.app-shell {
  position: relative;
  max-width: 1560px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  gap: 18px;
}

.timeline-workspace {
  display: grid;
  gap: 18px;
  --fullscreen-sidebar-width: 360px;
  --fullscreen-sidebar-tab-width: 28px;
}

.mode-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: stretch;
  gap: 10px;
}

.mode-switcher {
  display: inline-flex;
  align-items: stretch;
  width: fit-content;
  gap: 6px;
  padding: 6px;
  border: 1px solid rgba(141, 198, 255, 0.14);
  border-radius: 999px;
  background: rgba(3, 13, 20, 0.42);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.mode-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 10px 16px;
  min-height: 48px;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-weight: 700;
  line-height: 1.15;
  text-align: center;
  cursor: pointer;
  transition:
    background 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.mode-button:hover {
  color: var(--text);
  transform: translateY(-1px);
}

.mode-button.is-active {
  color: #062018;
  background: linear-gradient(135deg, var(--accent), #8ae8f3);
}

body.app-mode-exercise .timeline-workspace,
body.app-mode-exercise .debug-home-host,
body.app-mode-exercise .settings-mode-section,
body.app-mode-settings .timeline-workspace,
body.app-mode-settings .debug-home-host,
body.app-mode-settings .exercise-mode-section {
  display: none;
}

body.app-mode-exercise .exercise-mode-section {
  display: grid;
}

body.app-mode-settings .settings-mode-section {
  display: grid;
}

.exercise-mode-section,
.settings-mode-section {
  display: none;
  gap: 18px;
}

.settings-hero-panel {
  padding: 20px 24px;
}

.settings-hero-panel h2 {
  margin: 0;
}

.settings-hero-panel p:not(.eyebrow) {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.calibration-page-panel {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 22px;
  padding: 26px;
  border-color: rgba(255, 184, 107, 0.2);
  background:
    radial-gradient(circle at 8% 0%, rgba(255, 184, 107, 0.16), transparent 34%),
    linear-gradient(145deg, rgba(10, 24, 28, 0.9), rgba(5, 10, 17, 0.92));
}

.calibration-page-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.45), transparent 62%);
}

.calibration-page-panel > * {
  position: relative;
}

.calibration-page-header {
  max-width: 820px;
}

.calibration-page-header h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  letter-spacing: -0.04em;
  text-transform: none;
}

.calibration-page-header .calibration-instructions {
  margin-top: 10px;
  max-width: 720px;
  font-size: 1rem;
}

.transport-strip {
  padding: 4px 2px 0;
}

.panel {
  min-width: 0;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero,
.panel-header,
.subsection-header,
.hero-status,
.session-strip,
.timeline-toolbar,
.legend-row,
.drawer-grid {
  display: flex;
}

.hero {
  padding: 16px 24px;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 4px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.68rem;
  color: var(--accent-strong);
}

.hero h1,
.panel-header h2,
.subsection-header h3,
.collapsible-summary h2 {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.hero h1 {
  font-size: clamp(1.45rem, 2.6vw, 2.3rem);
}

.hero-copy,
.panel-header p,
.hint-text,
.collapsible-summary p {
  color: var(--muted);
  line-height: 1.5;
}

.hero-copy {
  max-width: 760px;
  margin: 6px 0 0;
  font-size: 0.95rem;
}

.hero-status {
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.status-group {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 150px;
}

.hit-indicator,
.metronome-indicator {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
  transition:
    transform 120ms ease,
    background 120ms ease,
    box-shadow 120ms ease;
}

.hit-indicator.active {
  background: var(--accent);
  transform: scale(1.22);
  box-shadow:
    0 0 0 10px rgba(115, 224, 169, 0.1),
    0 0 26px rgba(115, 224, 169, 0.65);
}

.metronome-indicator.active {
  background: var(--click);
  transform: scale(1.18);
  box-shadow:
    0 0 0 9px rgba(255, 184, 107, 0.12),
    0 0 22px rgba(255, 184, 107, 0.52);
}

.status-text {
  margin: 2px 0 0;
  font-size: 0.98rem;
  font-weight: 600;
}

.controls-panel,
.session-strip-panel,
.timeline-panel,
.collapsible-panel {
  padding: 20px 22px;
}

.timeline-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.timeline-panel > * {
  min-height: 0;
}

.transport-line {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(320px, 1.6fr) auto minmax(220px, 0.52fr) minmax(220px, 0.52fr);
  align-items: end;
}

.control.transport-inline-control {
  min-width: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.control.transport-inline-control span {
  flex: 0 0 auto;
}

.control.transport-inline-control select {
  flex: 1 1 auto;
  min-width: 0;
}

.transport-inline-buttons {
  min-width: 0;
}

.transport-line > .compact-button {
  width: auto;
  min-width: 150px;
  align-self: end;
}

.transport-line select,
.transport-line button {
  min-height: 52px;
}

.timeline-layout {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1.65fr) minmax(320px, 0.75fr);
  align-items: start;
}

.fullscreen-side-resize,
.fullscreen-drawer-toggle {
  display: none;
}

.metronome-panel {
  padding: 20px 22px;
}

.metronome-card {
  margin: 0;
}

.exercise-side-column {
  display: grid;
  gap: 12px;
  align-content: start;
}

.exercise-metronome-host .metronome-panel,
.exercise-metronome-panel {
  width: 100%;
}

.exercise-guide-button {
  min-height: 34px;
  padding: 7px 14px;
  font-size: 0.82rem;
  border-color: rgba(255, 184, 107, 0.34);
  color: rgba(243, 247, 251, 0.92);
}

.exercise-guide-button.is-active {
  border-color: rgba(255, 184, 107, 0.58);
  box-shadow: inset 0 0 0 1px rgba(255, 184, 107, 0.12);
}

.exercise-metronome-host .fullscreen-drawer-toggle {
  display: none;
}

.panel-header {
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
  margin-bottom: 18px;
  min-width: 0;
}

.panel-header > * {
  min-width: 0;
}

.panel-header-stack {
  align-items: flex-start;
}

.timeline-header {
  align-items: center;
  margin-bottom: 14px;
}

.timeline-header p {
  display: none;
}

.panel-header p,
.collapsible-summary p {
  margin: 0;
  font-size: 0.92rem;
}

.control {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.control span,
.stat-label {
  color: var(--muted);
}

.control-title {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  font-size: 0.95rem;
}

.subsection {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.subsection-header {
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 14px;
}

.subsection-header h3 {
  font-size: 1rem;
}

.toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 0.92rem;
}

.accent-caption {
  font-size: 0.82rem;
}

.time-signature-row {
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
}

.time-signature-slash {
  color: var(--text);
  font-size: 1.2rem;
  font-weight: 700;
  text-align: center;
}

select,
button,
input[type="range"],
.number-input {
  width: 100%;
}

select,
button,
.number-input {
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  font: inherit;
}

select,
.number-input {
  padding: 12px 14px;
  background: rgba(3, 10, 16, 0.55);
  color: var(--text);
}

button {
  padding: 12px 14px;
  cursor: pointer;
  transition:
    transform 120ms ease,
    border-color 120ms ease,
    background 120ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.compact-button {
  width: auto;
  min-width: 140px;
}

.primary-button {
  background: linear-gradient(135deg, #73e0a9, #8ae8f3);
  color: #062332;
  font-weight: 700;
}

.ghost-button {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.button-row {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 1fr;
}

.accent-grid {
  display: grid;
  gap: 12px;
}

.accent-popover {
  position: relative;
  z-index: 40;
}

.accent-popover-summary {
  min-width: 0;
  width: 100%;
  text-align: center;
}

.accent-popover-content {
  position: fixed;
  z-index: 500;
  padding: 12px;
  border-radius: 16px;
  background: rgba(3, 10, 16, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.34);
  overflow: auto;
}

.accent-popover-content[hidden] {
  display: none !important;
}

.metronome-panel,
.exercise-grid,
.exercise-metronome-host {
  overflow: visible;
}

.accent-row {
  display: grid;
  gap: 10px;
}

.accent-button {
  padding: 10px 0;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.accent-button.level-1 {
  background: linear-gradient(135deg, rgba(115, 224, 169, 0.18), rgba(138, 232, 243, 0.14));
  border-color: rgba(168, 242, 205, 0.4);
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(168, 242, 205, 0.12);
}

.accent-button.level-2 {
  background: linear-gradient(135deg, rgba(255, 184, 107, 0.28), rgba(255, 217, 138, 0.2));
  border-color: rgba(255, 209, 138, 0.62);
  color: #fff5df;
  box-shadow:
    inset 0 0 0 1px rgba(255, 209, 138, 0.22),
    0 0 18px rgba(255, 184, 107, 0.12);
}

input[type="range"] {
  appearance: none;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(115, 224, 169, 0.2), rgba(136, 214, 255, 0.2));
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--accent-strong);
  border: 0;
  box-shadow: 0 0 0 4px rgba(168, 242, 205, 0.15);
}

output {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.calibration-panel {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 1fr);
  align-items: stretch;
}

.calibration-left-stack {
  display: grid;
  gap: 14px;
  align-content: start;
}

.calibration-manual-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.calibration-page-panel .control,
.calibration-page-panel .calibration-chip {
  background: rgba(255, 255, 255, 0.045);
  border-color: rgba(255, 255, 255, 0.075);
}

.calibration-page-panel .control {
  padding: 16px 18px;
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.028)),
    rgba(255, 255, 255, 0.035);
}

.calibration-manual-grid .control-title span,
.calibration-manual-grid output {
  color: #ffffff;
}

.calibration-manual-grid .control-title span {
  font-weight: 400;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.visually-hidden[hidden] {
  display: none !important;
}

.calibration-screen-audio-control {
  width: 100%;
}

.calibration-debug-panel {
  margin-top: -4px;
  border-radius: 18px;
  background: rgba(3, 10, 16, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.065);
  overflow: hidden;
}

.calibration-debug-panel .debug-readout-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.calibration-debug-panel .debug-chip {
  padding: 8px 10px;
  border-radius: 12px;
}

.calibration-summary,
.calibration-actions,
.calibration-metrics {
  display: grid;
  gap: 12px;
}

.calibration-summary,
.calibration-metrics {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.calibration-chip {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.calibration-chip span {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
}

.calibration-chip strong {
  display: block;
  margin-top: 5px;
  font-size: 1.05rem;
  font-variant-numeric: tabular-nums;
}

.calibration-instructions {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.calibration-actions {
  grid-template-columns: repeat(auto-fit, minmax(150px, max-content));
  align-items: center;
}

.calibration-secondary-actions {
  grid-template-columns: repeat(2, minmax(140px, 1fr));
}

.calibration-start-zone {
  min-height: 100%;
  display: grid;
  gap: 12px;
  grid-template-rows: auto minmax(0, 1fr);
  padding: 10px;
  border-radius: 26px;
  background:
    radial-gradient(circle at 50% 0%, rgba(115, 224, 169, 0.22), transparent 42%),
    linear-gradient(145deg, rgba(115, 224, 169, 0.08), rgba(138, 232, 243, 0.07));
  border: 1px solid rgba(168, 242, 205, 0.18);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.calibration-source-gate {
  min-height: 100%;
}

.calibration-source-gate {
  display: grid;
  align-content: center;
  gap: 16px;
  padding: 34px;
  text-align: center;
}

.calibration-source-gate h3 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3.8rem);
  line-height: 0.96;
  letter-spacing: -0.055em;
}

.calibration-source-gate p:not(.eyebrow) {
  margin: 0 auto;
  max-width: 30ch;
  color: rgba(243, 247, 251, 0.72);
  line-height: 1.45;
}

.calibration-source-warning {
  width: fit-content;
  max-width: min(100%, 680px) !important;
  padding: 12px 15px;
  border: 1px solid rgba(255, 184, 107, 0.24);
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgba(255, 184, 107, 0.13), rgba(115, 224, 169, 0.07)),
    rgba(255, 255, 255, 0.035);
  color: rgba(255, 248, 232, 0.94);
  font-weight: 500;
  white-space: nowrap;
}

.calibration-source-control {
  margin-top: 8px;
  text-align: left;
}

.calibration-source-gate[hidden] {
  display: none !important;
}

.calibration-screen-source-panel {
  min-height: 360px;
  border-radius: 24px;
  border: 1px solid rgba(168, 242, 205, 0.18);
  background:
    radial-gradient(circle at 50% 0%, rgba(115, 224, 169, 0.18), transparent 46%),
    linear-gradient(145deg, rgba(115, 224, 169, 0.08), rgba(138, 232, 243, 0.07));
}

.calibration-screen-source-panel #calibrationScreenStartButton {
  width: min(100%, 360px);
  justify-self: center;
  min-height: 60px;
  border-radius: 999px;
  margin-top: 4px;
  transition:
    opacity 160ms ease,
    transform 160ms ease,
    filter 160ms ease;
}

.calibration-screen-source-panel #calibrationScreenStartButton:disabled {
  opacity: 0.34;
  filter: grayscale(0.8);
  cursor: not-allowed;
  transform: none;
}

.calibration-stage-card {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.calibration-stage-card strong {
  display: block;
  margin-top: 5px;
  font-size: 1.02rem;
}

.calibration-start-zone #startCalibrationButton {
  min-height: 360px;
  width: 100%;
  height: 100%;
  border-radius: 22px;
  padding: 34px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: center;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 28px 70px rgba(115, 224, 169, 0.22),
    0 0 0 1px rgba(255, 255, 255, 0.16) inset;
}

.calibration-start-title {
  display: block;
  max-width: 8ch;
  font-size: clamp(1.8rem, 4.1vw, 3.9rem);
  line-height: 0.95;
  letter-spacing: -0.045em;
}

.calibration-start-subtitle {
  display: block;
  max-width: 24ch;
  color: rgba(6, 32, 24, 0.74);
  font-size: clamp(0.92rem, 1.35vw, 1.08rem);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: 0;
}

.calibration-trim-row {
  grid-template-columns: auto repeat(2, minmax(120px, max-content));
  justify-content: start;
}

.calibration-trim-label {
  color: var(--muted);
  font-size: 0.92rem;
  align-self: center;
}

.calibration-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 28px;
}

.calibration-overlay[hidden] {
  display: none !important;
}

.calibration-overlay-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top, rgba(115, 224, 169, 0.12), transparent 32%),
    rgba(3, 10, 16, 0.82);
  backdrop-filter: blur(18px);
}

.calibration-overlay-shell {
  position: relative;
  width: min(1100px, 100%);
}

.calibration-screen {
  padding: 28px 30px;
  display: grid;
  gap: 26px;
  animation: calibration-screen-in 220ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.calibration-overlay.is-closing .calibration-screen {
  animation: calibration-screen-out 180ms ease both;
}

.calibration-screen-header {
  display: grid;
  gap: 18px;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
}

.calibration-back-button {
  min-width: 110px;
}

.calibration-screen-copy h2 {
  margin: 4px 0 0;
  font-size: clamp(2rem, 3vw, 3.2rem);
}

.calibration-screen-copy .eyebrow {
  margin-bottom: 6px;
}

.calibration-screen-instructions {
  margin: 12px 0 0;
  max-width: 640px;
  color: var(--muted);
  line-height: 1.65;
  font-size: 1.02rem;
}

.calibration-screen-body {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(320px, 1fr);
  align-items: center;
}

.calibration-screen-body[hidden] {
  display: none !important;
}

.calibration-screen-body.has-results {
  grid-template-columns: minmax(320px, 1fr) minmax(320px, 1fr);
}

.calibration-progress-card {
  min-height: 510px;
  border-radius: 24px;
  border: 1px solid rgba(168, 242, 205, 0.18);
  background:
    radial-gradient(circle at 50% 0%, rgba(115, 224, 169, 0.2), transparent 44%),
    radial-gradient(circle at 78% 20%, rgba(138, 232, 243, 0.13), transparent 36%),
    linear-gradient(145deg, rgba(115, 224, 169, 0.08), rgba(138, 232, 243, 0.07)),
    rgba(255, 255, 255, 0.035);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.04),
    0 22px 64px rgba(5, 18, 16, 0.2);
  display: grid;
  place-items: center;
}

.calibration-progress-wrap {
  position: relative;
  width: min(100%, 448px);
  aspect-ratio: 1;
}

.calibration-progress-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.calibration-progress-track,
.calibration-progress-ring {
  fill: none;
  stroke-width: 22;
}

.calibration-progress-track {
  stroke: rgba(255, 255, 255, 0.08);
}

.calibration-progress-ring {
  stroke: url(#calibration-progress-gradient);
  stroke-linecap: round;
  transition:
    stroke-dasharray 120ms linear,
    stroke-dashoffset 120ms linear;
}

.auto-tune-progress-ring {
  stroke: url(#auto-tune-progress-gradient);
}

.calibration-progress-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  align-content: center;
  text-align: center;
  gap: 8px;
  padding: 78px;
}

.calibration-progress-label,
.calibration-progress-phase {
  color: var(--muted);
}

.calibration-progress-label {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.calibration-progress-center strong {
  max-width: 13.8ch;
  font-size: clamp(1.5rem, 2.9vw, 2.36rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  text-wrap: balance;
}

.calibration-progress-segment {
  position: absolute;
  top: 34px;
  right: 38px;
  padding: 5px 9px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(7, 11, 14, 0.46);
  color: rgba(243, 247, 251, 0.8);
  font-size: 0.78rem;
  line-height: 1.2;
  letter-spacing: 0.04em;
  backdrop-filter: blur(10px);
}

#autoTuneProgressValue {
  max-width: 240px;
  font-size: clamp(1.35rem, 3vw, 2.15rem);
  line-height: 1.08;
  text-wrap: balance;
}

.calibration-progress-phase {
  max-width: 22ch;
  font-size: clamp(0.92rem, 1.55vw, 1.12rem);
  line-height: 1.24;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  text-wrap: balance;
}

.calibration-screen-side {
  display: grid;
  gap: 18px;
}

.calibration-screen-side[hidden],
.calibration-debug-panel[hidden] {
  display: none !important;
}

.calibration-screen-stage {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.calibration-screen-stage strong {
  display: block;
  margin-top: 6px;
  font-size: 1.4rem;
}

.calibration-screen-actions {
  display: grid;
  gap: 12px;
}

.calibration-screen-actions-wide {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.calibration-screen-results {
  display: grid;
  gap: 16px;
}

.calibration-screen-metrics {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.calibration-screen-results[hidden] {
  display: none;
}

@keyframes calibration-screen-in {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes calibration-screen-out {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  to {
    opacity: 0;
    transform: translateY(18px) scale(0.985);
  }
}

.session-strip-panel {
  display: grid;
  gap: 14px;
}

.session-strip {
  gap: 12px;
  flex-wrap: wrap;
}

.timeline-footer {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.session-strip-inline {
  flex-wrap: nowrap;
  align-items: stretch;
  overflow-x: auto;
  padding-bottom: 2px;
}

.session-stat {
  flex: 1 1 180px;
  min-width: 0;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.session-strip-inline .session-stat {
  flex: 1 0 150px;
  padding: 10px 12px;
  border-radius: 14px;
}

.session-stat strong,
.debug-chip strong {
  display: block;
  margin-top: 6px;
  font-size: 1.35rem;
  font-variant-numeric: tabular-nums;
}

.session-strip-inline .session-stat strong {
  margin-top: 3px;
  font-size: 1.02rem;
}

.message-banner {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 127, 115, 0.12);
  border: 1px solid rgba(255, 127, 115, 0.24);
  color: #ffd9d4;
}

canvas {
  display: block;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(8, 17, 24, 0.96), rgba(5, 10, 16, 0.98)),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03), transparent);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.timeline-toolbar {
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: nowrap;
}

.timeline-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: nowrap;
  justify-content: flex-end;
}

.fullscreen-transport-host {
  display: none;
}

.zoom-controls {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: flex-end;
  flex: 0 0 auto;
}

.zoom-label {
  color: var(--muted);
  font-size: 0.82rem;
}

.zoom-button-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}

.timeline-fullscreen-button {
  min-width: 116px;
  width: auto;
}

.timeline-fullscreen-button:not(.is-exit-fullscreen) {
  background: linear-gradient(135deg, rgba(115, 224, 169, 0.95), rgba(138, 232, 243, 0.9));
  border-color: rgba(168, 242, 205, 0.5);
  color: #062332;
  font-weight: 700;
}

.zoom-button {
  min-width: 52px;
  padding-inline: 0;
}

.zoom-value {
  min-width: 58px;
  text-align: center;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.legend-row {
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.legend-chip::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: currentColor;
}

.legend-hit {
  color: var(--accent);
}

.legend-click {
  color: var(--click);
}

.timeline-scroll-wrap {
  position: relative;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 6px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.18) transparent;
}

.timeline-scroll-large {
  padding-top: 4px;
}

#timelineCanvas {
  display: block;
  min-height: 320px;
  max-width: none;
  position: sticky;
  left: 0;
  z-index: 1;
  image-rendering: auto;
}

.timeline-virtual-width {
  width: 100%;
  height: 1px;
  pointer-events: none;
}

.timeline-workspace.is-fullscreen-workspace {
  position: fixed;
  inset: 0;
  z-index: 40;
  width: 100vw;
  height: 100dvh;
  max-width: none;
  margin: 0;
  padding: 18px;
  gap: 12px;
  grid-template-rows: minmax(0, 1fr);
  overflow: hidden;
  background:
    radial-gradient(circle at top left, rgba(115, 224, 169, 0.1), transparent 26%),
    radial-gradient(circle at top right, rgba(136, 214, 255, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(8, 17, 24, 0.985), rgba(5, 10, 16, 0.995));
}

.debug-home-host {
  min-width: 0;
}

.detector-debug-panel {
  width: 100%;
}

.detector-debug-panel #debugCanvas,
.detector-debug-panel #settingsDebugCanvas {
  width: 100%;
  height: auto;
}

.metronome-debug {
  margin-top: 10px;
  border-radius: 16px;
  background: rgba(3, 10, 16, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.055);
  overflow: hidden;
}

.metronome-debug-summary {
  list-style: none;
  cursor: pointer;
  padding: 10px 10px 8px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.metronome-debug .detector-debug-summary {
  padding: 10px 10px 8px;
}

.metronome-debug .collapsible-content {
  margin-top: 0;
}

.metronome-debug .detector-debug-content {
  padding: 0 10px 10px;
}

.metronome-debug-summary::-webkit-details-marker,
.metronome-debug .detector-debug-summary::-webkit-details-marker {
  display: none;
}

.metronome-debug-summary::after,
.metronome-debug .detector-debug-summary::after {
  content: "+";
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-strong);
  font-size: 1rem;
}

.metronome-debug[open] > .metronome-debug-summary::after,
.metronome-debug[open] > .detector-debug-summary::after {
  content: "–";
}

.metronome-debug-summary h3,
.metronome-debug .detector-debug-summary h2 {
  margin: 0;
  font-size: 0.92rem;
}

.metronome-debug-summary p,
.metronome-debug .detector-debug-summary p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.metronome-debug-content {
  padding: 0 10px 10px;
}

#debugCanvas,
#settingsDebugCanvas {
  width: 100%;
  height: auto;
  border-radius: 14px;
}

.metronome-debug .debug-readout-grid {
  margin-top: 8px;
  gap: 6px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metronome-debug .debug-chip {
  padding: 7px 8px;
  border-radius: 10px;
}

.metronome-debug .debug-chip span {
  font-size: 0.72rem;
}

.metronome-debug .debug-chip strong {
  margin-top: 3px;
  font-size: 0.86rem;
}

.timeline-workspace.is-fullscreen-workspace .transport-strip {
  padding: 0;
  width: 100%;
}

.timeline-workspace.is-fullscreen-workspace .transport-line {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: nowrap;
  min-width: 0;
}

.timeline-workspace.is-fullscreen-workspace .transport-inline-control {
  flex: 1 1 220px;
  min-width: 180px;
}

.timeline-workspace.is-fullscreen-workspace .transport-inline-control span {
  font-size: 0.82rem;
}

.timeline-workspace.is-fullscreen-workspace .transport-inline-buttons {
  flex: 0 0 auto;
  display: flex;
  gap: 8px;
}

.timeline-workspace.is-fullscreen-workspace .transport-line button,
.timeline-workspace.is-fullscreen-workspace .transport-line select {
  min-height: 40px;
}

.timeline-workspace.is-fullscreen-workspace .transport-line button {
  width: auto;
  min-width: 74px;
  padding: 9px 12px;
}

.timeline-workspace.is-fullscreen-workspace .transport-line .compact-button {
  min-width: 98px;
}

.timeline-workspace.is-fullscreen-workspace #refreshDevicesButton,
.timeline-workspace.is-fullscreen-workspace #exportButton {
  display: none;
}

.timeline-workspace.is-fullscreen-workspace .timeline-layout {
  min-height: 0;
  height: 100%;
  overflow: hidden;
  align-items: stretch;
  gap: 0;
  grid-template-columns: minmax(0, 1fr) 10px minmax(var(--fullscreen-sidebar-tab-width), var(--fullscreen-sidebar-width));
  grid-template-rows: minmax(0, 1fr);
  transition: grid-template-columns 220ms ease;
}

.timeline-workspace.is-fullscreen-workspace .timeline-panel {
  min-height: 0;
  height: 100%;
  align-self: stretch;
  overflow: hidden;
  margin: 0;
  padding: 18px 20px 14px;
  border-radius: 22px 0 0 22px;
  border-right: 0;
}

.timeline-workspace.is-fullscreen-workspace .timeline-toolbar {
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: nowrap;
}

.timeline-workspace.is-fullscreen-workspace .fullscreen-transport-host {
  display: block;
  flex: 1 1 380px;
  min-width: 0;
}

.timeline-workspace.is-fullscreen-workspace .timeline-header {
  align-items: center;
  margin-bottom: 10px;
  gap: 12px;
}

.timeline-workspace.is-fullscreen-workspace .timeline-header > div:first-child {
  flex: 0 0 auto;
}

.timeline-workspace.is-fullscreen-workspace .timeline-header p {
  display: none;
}

.timeline-workspace.is-fullscreen-workspace .timeline-actions {
  flex: 0 0 auto;
  gap: 6px;
}

.timeline-workspace.is-fullscreen-workspace .legend-row {
  display: none;
}

.timeline-workspace.is-fullscreen-workspace .timeline-scroll-wrap {
  min-height: 0;
  height: 100%;
  max-height: 100%;
  padding-bottom: 10px;
}

.timeline-workspace.is-fullscreen-workspace #timelineCanvas {
  min-height: 0;
}

.timeline-workspace.is-fullscreen-workspace .timeline-footer {
  margin-top: 10px;
}

.timeline-workspace.is-fullscreen-workspace .metronome-panel {
  position: relative;
  min-width: 0;
  height: 100%;
  align-self: stretch;
  padding: 8px 10px 8px 14px;
  border-radius: 0 22px 22px 0;
  overflow: visible;
  transition:
    padding 220ms ease,
    opacity 220ms ease,
    transform 220ms ease;
}

.timeline-workspace.is-fullscreen-workspace .metronome-card {
  height: 100%;
  overflow: auto;
  transition:
    opacity 180ms ease,
    transform 220ms ease;
}

.timeline-workspace.is-fullscreen-workspace .metronome-card {
  padding: 10px;
}

.timeline-workspace.is-fullscreen-workspace .control {
  gap: 6px;
  margin-bottom: 8px;
}

.timeline-workspace.is-fullscreen-workspace .subsection-header {
  margin-bottom: 10px;
}

.timeline-workspace.is-fullscreen-workspace .metronome-debug {
  margin-top: 8px;
}

.timeline-workspace.is-fullscreen-workspace .metronome-debug-summary h3,
.timeline-workspace.is-fullscreen-workspace .metronome-debug .detector-debug-summary h2 {
  font-size: 1rem;
}

.timeline-workspace.is-fullscreen-workspace .metronome-debug .debug-chip strong {
  font-size: 0.95rem;
}

.timeline-workspace.is-fullscreen-workspace .fullscreen-side-resize {
  display: block;
  cursor: col-resize;
  touch-action: none;
  position: relative;
  z-index: 4;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  border-radius: 999px;
  margin: 10px 0;
  transition:
    opacity 220ms ease,
    margin 220ms ease;
}

.timeline-workspace.is-fullscreen-workspace .fullscreen-drawer-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.timeline-workspace.is-fullscreen-workspace .fullscreen-sidebar-toggle {
  position: absolute;
  top: 14px;
  left: 8px;
  width: 32px;
  min-width: 32px;
  height: 32px;
  padding: 0;
  z-index: 2;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.timeline-workspace.is-fullscreen-workspace.sidebar-collapsed {
  --fullscreen-sidebar-width: var(--fullscreen-sidebar-tab-width);
}

.timeline-workspace.is-fullscreen-workspace.sidebar-collapsed .timeline-layout {
  grid-template-columns: minmax(0, 1fr) 0 minmax(var(--fullscreen-sidebar-tab-width), var(--fullscreen-sidebar-width));
}

.timeline-workspace.is-fullscreen-workspace.sidebar-collapsed .metronome-panel {
  padding: 16px 0 16px 0;
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.timeline-workspace.is-fullscreen-workspace.sidebar-collapsed .metronome-card {
  opacity: 0;
  pointer-events: none;
  transform: translateX(40px);
}

.timeline-workspace.is-fullscreen-workspace.sidebar-collapsed .fullscreen-sidebar-toggle {
  left: -4px;
}

.timeline-workspace.is-fullscreen-workspace.sidebar-collapsed .fullscreen-side-resize {
  opacity: 0;
  margin: 0;
  pointer-events: none;
}

.timeline-fullscreen-button.is-exit-fullscreen {
  background: rgba(255, 94, 94, 0.16);
  border-color: rgba(255, 94, 94, 0.38);
  color: #ffd7d7;
}

.collapsible-panel {
  overflow: hidden;
}

.collapsible-summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
}

.collapsible-summary::-webkit-details-marker {
  display: none;
}

.collapsible-summary::after {
  content: "+";
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-strong);
  font-size: 1.2rem;
  line-height: 1;
}

details[open] > .collapsible-summary::after {
  content: "–";
}

.collapsible-content {
  margin-top: 16px;
}

.drawer-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr 1fr;
}

.debug-readout-grid {
  margin-top: 14px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.debug-chip {
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.exercise-hero-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  min-height: 0;
  padding: 6px 12px;
  border-radius: 28px;
}

.exercise-hero-panel .eyebrow {
  margin: 0;
}

.exercise-hero-panel h2 {
  font-size: 0.9rem;
  line-height: 1.1;
  white-space: nowrap;
}

.exercise-hero-panel .exercise-copy {
  display: block;
  max-width: none;
  text-align: right;
}

.exercise-hero-panel h2,
.high-score-panel h4 {
  margin: 0;
}

.exercise-copy {
  max-width: 310px;
  margin: 0;
  color: var(--muted);
  line-height: 1.25;
  font-size: 0.78rem;
}

.exercise-mode-note {
  min-width: 190px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: right;
  color: var(--muted);
  font-weight: 700;
}

.exercise-control-strip {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 14px;
  padding: 4px 2px 0;
}

.exercise-control-strip > * {
  min-width: 0;
}

.exercise-control-strip .exercise-inline-control {
  flex: 1 1 220px;
}

.exercise-control-strip .exercise-audio-control {
  flex-basis: 260px;
}

.exercise-control-strip .exercise-tempo-control,
.exercise-control-strip .upload-button,
.exercise-control-strip .exercise-transport-buttons {
  flex: 0 0 auto;
}

.exercise-transport-buttons {
  display: flex;
  align-items: center;
  grid-template-columns: none;
}

.exercise-inline-control,
.exercise-tempo-control {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}

.exercise-inline-control select {
  min-width: 0;
  flex: 1 1 auto;
}

.exercise-tempo-control input {
  width: 98px;
}

.upload-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  cursor: pointer;
}

.exercise-grid,
.exercise-review-grid {
  display: grid;
  gap: 18px;
  align-items: start;
}

.exercise-grid {
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.55fr);
  align-items: stretch;
}

.exercise-metronome-host {
  display: flex;
}

.exercise-metronome-host .metronome-panel {
  align-self: stretch;
}

.exercise-review-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

.exercise-review-grid.graphs-expanded {
  align-items: stretch;
}

.exercise-sheet-panel,
.exercise-results-panel,
.exercise-timeline-panel,
.exercise-offset-panel,
.exercise-dynamics-panel {
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
}

.exercise-dynamics-panel {
  grid-column: 1 / -1;
}

.session-history-panel,
.stats-hero-panel,
.exercise-ranking-panel {
  padding: 20px 22px;
}

.stats-hero-panel {
  display: grid;
  gap: 18px;
}

.auto-tune-panel {
  display: grid;
  gap: 14px;
}

.auto-tune-summary {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.auto-tune-proposals {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.exercise-panel-header {
  align-items: center;
  margin-bottom: 14px;
}

.exercise-panel-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.exercise-review-summary {
  align-items: center;
}

.exercise-review-summary h2 {
  margin: 0;
}

.exercise-review-summary p {
  margin-top: 4px;
}

.exercise-review-panel:not([open]) .exercise-review-summary p,
.exercise-review-panel:not([open]) .legend-row {
  display: none;
}

.exercise-review-panel:not([open]) {
  min-height: 0;
}

.exercise-collapse-body {
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
}

.exercise-collapse-body[hidden] {
  display: none;
}

.exercise-collapse-body .exercise-scroll-wrap {
  width: 100%;
}

.exercise-timeline-panel:has(.exercise-collapse-body[hidden]),
.exercise-offset-panel:has(.exercise-collapse-body[hidden]),
.exercise-dynamics-panel:has(.exercise-collapse-body[hidden]) {
  min-height: 0;
}

.exercise-mini-stats {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  color: var(--muted);
  font-size: 0.82rem;
}

.exercise-mini-stats span,
.analysis-status {
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.sheet-music-container {
  position: relative;
  min-height: 360px;
  max-height: 560px;
  overflow: auto;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.94);
  color: #06131d;
  padding: 14px;
}

.sheet-tendency-graph-layer,
.sheet-dynamics-graph-layer {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 0;
  overflow: visible;
  pointer-events: none;
}

.sheet-music-container svg {
  position: relative;
  z-index: 1;
  display: block;
  width: 100% !important;
  height: auto !important;
  min-height: 280px;
  background: transparent !important;
}

.sheet-music-container .sheet-tendency-graph-layer,
.sheet-music-container .sheet-dynamics-graph-layer {
  position: absolute;
  z-index: 0;
  width: auto !important;
  height: auto !important;
  min-height: 0;
}

.sheet-music-container img[id*="cursor"],
.sheet-music-container img[src*="cursor"] {
  opacity: 0 !important;
  pointer-events: none;
}

.sheet-progress-cursor {
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  min-height: 48px;
  border-radius: 999px;
  background: #73e0a9;
  box-shadow:
    0 0 0 1px rgba(3, 10, 15, 0.34),
    0 0 16px rgba(115, 224, 169, 0.64),
    0 0 28px rgba(115, 224, 169, 0.38);
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%);
  transition: opacity 120ms ease, left 25ms linear, top 25ms linear;
  z-index: 12;
}

.sheet-progress-cursor.is-visible {
  opacity: 1;
}

.sheet-ready-prompt {
  position: absolute;
  inset: 18px;
  z-index: 14;
  display: grid;
  place-items: center;
  pointer-events: none;
}

.sheet-ready-prompt[hidden] {
  display: none;
}

.sheet-ready-prompt span {
  padding: 12px 18px;
  border-radius: 999px;
  color: #062018;
  font-weight: 800;
  letter-spacing: 0.01em;
  background: linear-gradient(135deg, #73e0a9, #8ae8f3);
  box-shadow:
    0 0 0 1px rgba(3, 10, 15, 0.12),
    0 16px 40px rgba(4, 12, 18, 0.22);
}

.exercise-listen-button {
  min-height: 34px;
  padding: 7px 14px;
  font-size: 0.82rem;
  background:
    linear-gradient(135deg, rgba(115, 224, 169, 0.98), rgba(138, 232, 243, 0.94)) !important;
  background-color: #73e0a9 !important;
  color: #062332;
}

.exercise-tendencies-button,
.view-tendencies-button {
  min-height: 34px;
  padding: 7px 14px;
  font-size: 0.82rem;
  border-color: rgba(255, 184, 107, 0.34);
  color: rgba(243, 247, 251, 0.92);
}

.exercise-tendencies-button.is-active {
  border-color: rgba(255, 184, 107, 0.58);
  box-shadow: inset 0 0 0 1px rgba(255, 184, 107, 0.12);
}

.sheet-music-container svg path,
.sheet-music-container svg text,
.sheet-music-container svg line,
.sheet-music-container svg polyline,
.sheet-music-container svg polygon,
.sheet-music-container svg circle,
.sheet-music-container svg ellipse {
  opacity: 1;
  visibility: visible;
}

.sheet-placeholder {
  min-height: 320px;
  display: grid;
  place-items: center;
  color: rgba(6, 19, 29, 0.62);
  font-weight: 700;
}

.exercise-warnings {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 184, 107, 0.12);
  color: #ffe0bd;
  border: 1px solid rgba(255, 184, 107, 0.2);
  font-size: 0.9rem;
}

.exercise-results-panel {
  display: grid;
  gap: 16px;
}

.analysis-score {
  padding: 18px;
  border-radius: 20px;
  background:
    linear-gradient(135deg, rgba(115, 224, 169, 0.14), rgba(136, 214, 255, 0.08)),
    rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(115, 224, 169, 0.18);
}

.analysis-score strong {
  display: block;
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  line-height: 1;
  color: var(--accent-strong);
}

.analysis-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.high-score-panel {
  display: grid;
  gap: 10px;
}

.high-score-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
}

.high-score-list li::marker {
  color: var(--accent);
  font-weight: 800;
}

.exercise-scroll-wrap {
  flex: 1 1 auto;
  padding-top: 4px;
}

#exerciseTimelineCanvas {
  display: block;
  min-height: 300px;
  position: sticky;
  left: 0;
  z-index: 1;
}

#exerciseOffsetCanvas {
  flex: 1 1 auto;
  display: block;
  max-width: 100%;
  margin-inline: auto;
  box-sizing: border-box;
  min-height: 380px;
}

#exerciseDynamicsCanvas {
  flex: 1 1 auto;
  display: block;
  max-width: 100%;
  margin-inline: auto;
  box-sizing: border-box;
  min-height: 300px;
}

.session-history-list,
.exercise-stats-list {
  display: grid;
  gap: 10px;
}

.session-history-item,
.exercise-stat-card {
  display: grid;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.session-history-item {
  grid-template-columns: minmax(170px, 1fr) 90px 120px 130px minmax(180px, 360px);
}

.exercise-stat-card {
  grid-template-columns: minmax(190px, 1fr) 90px 120px 150px 160px;
}

.view-tendencies-button {
  justify-self: end;
  min-width: 150px;
}

.session-history-item.is-best {
  border-color: rgba(115, 224, 169, 0.36);
  box-shadow: 0 0 0 1px rgba(115, 224, 169, 0.14), 0 14px 34px rgba(115, 224, 169, 0.08);
}

.session-history-meta,
.exercise-stat-meta {
  display: grid;
  gap: 3px;
}

.session-history-meta strong,
.exercise-stat-meta strong {
  color: var(--text);
}

.session-history-meta span,
.exercise-stat-meta span,
.empty-history {
  color: var(--muted);
  font-size: 0.84rem;
}

.mini-rep-graphs {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  min-width: 0;
}

.mini-rep-graph {
  display: grid;
  place-items: center;
  flex: 0 1 170px;
  width: 170px;
  height: 58px;
  padding: 0;
  box-sizing: border-box;
  border-radius: 14px;
  background: rgba(3, 10, 16, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.07);
  cursor: pointer;
  overflow: hidden;
}

.mini-rep-graph:hover {
  border-color: rgba(255, 184, 107, 0.34);
  background: rgba(3, 10, 16, 0.58);
}

.mini-dynamics-graph {
  border-color: rgba(255, 184, 107, 0.16);
  background:
    linear-gradient(135deg, rgba(255, 184, 107, 0.10), rgba(3, 10, 16, 0.38));
}

.mini-rep-graph svg {
  display: block;
  margin: auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.stats-hero-panel {
  display: grid;
  gap: 18px;
}

body.app-mode-stats .hero-status {
  display: none;
}

body.app-mode-stats .transport-strip,
body.app-mode-stats .timeline-workspace,
body.app-mode-stats .metronome-panel {
  display: none !important;
}

.danger-button {
  color: #ffe3df;
  background: rgba(255, 99, 91, 0.14);
  border-color: rgba(255, 99, 91, 0.34);
}

.danger-button:hover {
  background: rgba(255, 99, 91, 0.22);
  border-color: rgba(255, 99, 91, 0.52);
}

.stat-card {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.075);
}

.stat-card span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 8px;
}

.stat-card strong {
  display: block;
  color: var(--accent-strong);
  font-size: clamp(1.45rem, 3vw, 2.45rem);
  line-height: 1.05;
}

.exercise-stat-card {
  grid-template-columns: 42px minmax(170px, 1fr) repeat(4, minmax(90px, 0.55fr));
}

.rank-badge {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: #062332;
  background: linear-gradient(135deg, #73e0a9, #8ae8f3);
  font-weight: 900;
}

.rep-graph-card {
  width: min(980px, calc(100vw - 38px));
  padding: 28px;
}

.exercise-heatmap-card {
  width: min(1180px, calc(100vw - 38px));
  max-height: calc(100vh - 38px);
  padding: 28px;
  position: relative;
  overflow: auto;
}

#repGraphCanvas {
  display: block;
  width: 100%;
  min-height: 360px;
}

.heatmap-summary {
  max-width: 820px;
  color: var(--muted);
}

.heatmap-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 14px;
}

.heatmap-legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 999px;
  color: rgba(243, 247, 251, 0.88);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
  font-weight: 800;
}

.heatmap-legend-chip::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 999px;
}

.heatmap-rush::before {
  background: #ffb86b;
}

.heatmap-centered::before {
  background: #73e0a9;
}

.heatmap-drag::before {
  background: #8ac7ff;
}

.heatmap-sheet-wrap {
  overflow-x: auto;
  border-radius: 20px;
  padding: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.025)),
    rgba(3, 10, 15, 0.28);
  border: 1px solid rgba(136, 214, 255, 0.12);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.025);
}

.heatmap-sheet-stage {
  position: relative;
  min-width: 760px;
  margin: 0 auto;
  border-radius: 16px;
  overflow: hidden;
  background: #ffffff;
  box-shadow:
    0 18px 54px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(6, 19, 29, 0.12);
}

.heatmap-sheet-clone {
  position: relative;
  z-index: 2;
  padding: 14px;
  pointer-events: none;
}

.heatmap-sheet-clone svg {
  display: block;
  background: transparent !important;
}

.heatmap-empty-sheet {
  display: grid;
  place-items: center;
  min-height: 360px;
  color: rgba(6, 19, 29, 0.66);
  font-weight: 800;
}

.heatmap-graph-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: visible;
  pointer-events: none;
}

.heatmap-trace-segment {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 5.5;
  stroke-opacity: 0.38;
  filter: drop-shadow(0 1px 0 rgba(255, 255, 255, 0.34));
}

.dynamics-trace-segment {
  fill: none;
  stroke: rgba(115, 224, 169, 0.42);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 5;
  filter: drop-shadow(0 1px 1px rgba(5, 28, 20, 0.16));
}

.dynamics-trace-point {
  fill: rgba(115, 224, 169, 0.58);
  stroke: rgba(5, 28, 20, 0.18);
  stroke-width: 0.9;
}

.heatmap-marker-layer {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: auto;
}

.heatmap-trace-hit-target {
  position: absolute;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: transparent;
  transform: translate(-50%, -50%);
  cursor: pointer;
}

.heatmap-trace-hit-target:focus-visible::after {
  content: "";
  position: absolute;
  inset: 3px;
  border: 2px solid rgba(6, 19, 29, 0.52);
  border-radius: 999px;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.72);
}

.heatmap-details {
  display: grid;
  gap: 5px;
  min-height: 74px;
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 18px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.heatmap-details strong {
  color: var(--text);
}

.heatmap-details span {
  display: block;
}

.exercise-transport-buttons {
  min-width: 230px;
}

.exercise-result-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at center, rgba(115, 224, 169, 0.14), transparent 36%),
    rgba(3, 10, 15, 0.42);
  opacity: 0;
  transition: opacity 180ms ease;
}

.exercise-result-overlay[hidden] {
  display: none;
}

.exercise-result-overlay.is-open {
  opacity: 1;
}

.exercise-result-card {
  width: min(720px, 100%);
  padding: 28px;
  position: relative;
  transform: translateY(18px) scale(0.97);
  transition: transform 220ms ease;
  box-shadow:
    0 0 0 1px rgba(115, 224, 169, 0.18),
    0 0 64px rgba(115, 224, 169, 0.34),
    0 0 132px rgba(255, 184, 107, 0.16),
    var(--shadow);
}

.exercise-result-overlay.is-open .exercise-result-card {
  transform: translateY(0) scale(1);
}

.result-close-button {
  position: absolute;
  top: 18px;
  right: 18px;
  min-height: 38px;
  background:
    linear-gradient(135deg, rgba(115, 224, 169, 0.98), rgba(138, 232, 243, 0.94)) !important;
  background-color: #73e0a9 !important;
  color: #062332;
}

.exercise-result-card h2 {
  margin: 4px 0 0;
}

.exercise-result-score-wrap {
  display: block;
  margin: 12px 0 22px;
}

.exercise-result-score-label {
  display: block;
  color: var(--muted);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.exercise-result-score {
  display: block;
  margin-top: 4px;
  font-size: clamp(4rem, 14vw, 8.5rem);
  line-height: 0.9;
  color: var(--accent-strong);
}

.exercise-result-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.exercise-result-hint {
  margin: 18px 0 0;
  color: var(--muted);
}

.exercise-feedback-panel {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.075);
}

.exercise-feedback-panel h3 {
  margin: 0 0 10px;
}

.exercise-feedback-panel ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

@media (max-width: 1180px) {
  .timeline-layout,
  .drawer-grid,
  .calibration-panel,
  .calibration-manual-grid,
  .exercise-grid,
  .exercise-review-grid,
  .stats-grid,
  .session-history-item,
  .exercise-stat-card {
    grid-template-columns: 1fr;
    display: grid;
  }

  .calibration-start-zone #startCalibrationButton {
    min-height: 180px;
    text-align: center;
    align-items: center;
    justify-content: center;
  }

  .exercise-control-strip {
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .mini-rep-graphs {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .exercise-hero-panel {
    align-items: stretch;
    flex-direction: column;
  }

  .mode-header {
    grid-template-columns: 1fr;
  }

  .exercise-mode-note {
    text-align: left;
  }

  .metronome-card {
    flex-basis: auto;
  }

  .debug-readout-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .calibration-screen-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .app-shell {
    padding: 16px;
  }

  .hero,
  .panel-header,
  .subsection-header,
  .collapsible-summary {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-status,
  .timeline-toolbar,
  .legend-row,
  .session-strip {
    justify-content: flex-start;
  }

  .transport-line {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .timeline-toolbar {
    align-items: flex-start;
  }

  .timeline-actions,
  .zoom-controls,
  .zoom-button-row {
    justify-content: flex-start;
  }

  .button-row,
  .debug-readout-grid {
    grid-template-columns: 1fr;
  }

  .transport-inline-control,
  .transport-inline-buttons,
  .transport-line > .compact-button {
    width: 100%;
  }

  .session-strip-inline {
    flex-wrap: wrap;
    overflow: visible;
  }

  #timelineCanvas {
    min-height: 320px;
  }

  .calibration-overlay {
    padding: 16px;
  }

  .calibration-screen {
    padding: 22px 20px;
  }

  .calibration-screen-header {
    grid-template-columns: 1fr;
  }

  .calibration-screen-metrics,
  .calibration-screen-actions-wide,
  .exercise-result-grid,
  .auto-tune-summary,
  .auto-tune-proposals {
    grid-template-columns: 1fr;
  }

  .calibration-progress-card {
    min-height: 320px;
  }
}