/* Island palette: leafy greens, seafoam, sandy cream, and sunny yellow. */
:root {
  font-family: 'Avenir Next', 'Segoe UI', ui-rounded, system-ui, sans-serif;
  color: var(--text, #34493d);
  background: var(--page, #e5dfcf);
  --ink: var(--text, #34493d);
  --muted: var(--secondary, #626e57);
  --teal: var(--accent, #367557);
  --line: var(--border, #d5d9b8);
  --paper: var(--panel, #fff5ef);
  --sea: var(--accent, #367557);
  --sand: var(--shape-sand, #e4ce91);
  --ochre: var(--gold, #efd078);
  --slate: var(--shape-blue, #87c9c2);
}
body { isolation: isolate; }
.landscape { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.landscape span { position: absolute; display: block; }
.landscape span:nth-child(1) { width: 340px; height: 520px; left: -260px; top: 100px; background: var(--shape-leaf, #aac5af); border-radius: 38% 62% 65% 35% / 37% 43% 57% 63%; transform: rotate(-18deg); }
.landscape span:nth-child(2) { width: 280px; height: 380px; right: -225px; top: 145px; background: var(--slate); border-radius: 60% 40% 35% 65% / 60% 44% 56% 40%; transform: rotate(16deg); }
.landscape span:nth-child(3) { width: 300px; height: 350px; left: -238px; bottom: -90px; background: var(--sand); border-radius: 43% 57% 60% 40%; transform: rotate(-22deg); }
.landscape span:nth-child(4) { width: 280px; height: 290px; right: -215px; bottom: -70px; background: var(--shape-leaf, #aac5af); border-radius: 65% 35% 36% 64%; transform: rotate(32deg); }
.landscape::after { content: ''; position: absolute; width: 32px; height: 42px; right: 14px; top: 56%; background: var(--ochre); border-radius: 46% 54% 59% 41%; transform: rotate(-23deg); }
.topbar { max-width: 1480px; margin: auto; height: 100px; background: transparent; border: 0; padding: 0 5%; gap: 24px; }
.brand { font-size: clamp(25px, 2.5vw, 36px); font-weight: 700; letter-spacing: -1px; white-space: nowrap; gap: 12px; }
.brand-symbol { width: 46px; height: 46px; display: block; background: none; margin: 0; border-radius: 0; }
.brand-symbol img { display: block; width: 100%; height: 100%; }
.header-actions { gap: 14px; }
.midi-button { background: transparent; border: 1px solid var(--border, #a7b99a); border-radius: 24px; padding: 11px 17px; font-weight: 500; }
.midi-button:hover { background: var(--hover, #e1edce); }
.connection-dot { background: #a2b795; }
.midi-button.connected .connection-dot { background: var(--teal); }
.quiet { color: var(--muted); }
.circle-question { border-color: var(--border, #7c9677); }
main { max-width: 1400px; padding: 16px 5% 30px; }
.mode-bar { margin-bottom: 27px; }
.segmented, .mode-bar > .segmented, .keyboard-controls .segmented { border: 0; background: var(--well, #ede6d4); border-radius: 25px; padding: 4px; }
.mode-bar > .segmented { background: var(--paper); }
.segmented button, .keyboard-controls .segmented button { border-radius: 22px; color: var(--secondary, #5b6e51); font-weight: 500; }
.segmented button.selected, .keyboard-controls .segmented button.selected { background: var(--sea); color: var(--on-accent, #fff9e7); box-shadow: none; font-weight: 650; }
.segmented button:hover:not(.selected):not(:disabled) { background: var(--hover, #d4e5bb); color: var(--ink); }
.mode-bar > .segmented button { min-width: 130px; padding: 11px 22px; font-size: 15px; }
.scoreboard { padding: 0 16px 28px; gap: 22px 35px; }
.metric-label { color: var(--muted); font-size: 11px; font-weight: 550; letter-spacing: .6px; margin-bottom: 6px; }
.scoreboard strong { font-size: 30px; font-weight: 650; color: var(--ink); font-variant-numeric: tabular-nums; }
.scoreboard small, .session-count, .session-count > span:first-child { color: var(--muted); }
.answer-metric { position: relative; z-index: 0; border-radius: 18px; }
.answer-metric::before { content: ''; position: absolute; z-index: -1; width: 55px; height: 34px; bottom: 7px; left: 4px; border-radius: 45% 55% 40% 60%; transform: rotate(-8deg); background: var(--success-wash, #b7d9ad); }
.wrong-metric::before { background: var(--error-wash, #f0d4a3); transform: rotate(7deg); }
.session-actions { gap: 18px; }
.session-actions .reset-button { border-radius: 20px; background: transparent; border-color: var(--border, #a7b99a); color: var(--muted); }
.session-actions .reset-button:hover { background: var(--hover, #e1edce); }
.sheet { background: var(--paper); border: 0; border-radius: 40px 48px 42px 30px; box-shadow: none; min-height: 370px; }
.sheet-top { padding: 21px 26px 12px; gap: 14px; }
.practice-tag { color: var(--ink); font-size: 15px; font-weight: 550; letter-spacing: 0; }
.key-name-toggle { color: var(--ink); border-radius: 50%; width: 34px; height: 34px; }
.key-name-toggle:hover, .key-name-toggle[aria-pressed='true'] { background: var(--hover, #ddedd6); border-color: transparent; color: var(--teal); }
.compact-settings { gap: 9px; color: var(--muted); }
.clef-options { display: flex; gap: 7px; }
.clef-choice { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 40px; padding: 5px 10px; border: 1px solid var(--border, #c8ceba); border-radius: 12px; background: transparent; color: var(--muted); font-size: 12px; }
.clef-choice.selected { background: var(--hover, #e3edda); border-color: var(--selected-border, #85a488); color: var(--selected-text, #345b42); }
.clef-choice:hover:not(:disabled) { border-color: var(--teal); }
.clef-symbol { width: 17px; height: 26px; fill: currentColor; flex-shrink: 0; }
@media(max-width:600px) { .clef-choice { flex: 1; } }
.compact-settings .segmented { background: var(--well, #f0ead9); border-radius: 16px; }
.compact-settings .segmented button { border-radius: 14px; }
select, .compact-settings select { background-color: var(--paper); border-color: var(--border, #d8cbbd); color: var(--ink); border-radius: 14px; }
select:disabled { opacity: .65; }
.staff { min-height: clamp(230px, 23vw, 310px); padding: 0 28px; color: var(--ink); }
.staff svg { max-width: 900px; fill: var(--ink); }
.staff svg > line { stroke: var(--staff-line, #657358); }
.staff-note ellipse { fill: var(--ink); }
.staff-note path { stroke: var(--ink); }
.staff-note.sounding ellipse { fill: var(--teal); }
.staff-note.sounding path { stroke: var(--teal); }
.sheet-bottom { border-top: 0; margin-top: 5px; padding: 15px 26px 22px; gap: 14px; }
.practice-toggle { color: var(--muted); }
.switch, .keyboard-label-toggle .switch { background: var(--switch-off, #c1ccb0); width: 34px; height: 20px; padding: 3px; }
.switch::after { width: 14px; height: 14px; box-shadow: none; background: var(--switch-knob, var(--paper)); }
input:checked + .switch, .keyboard-label-toggle input:checked + .switch { background: var(--accent, #367557); }
input:checked + .switch::after { transform: translateX(14px); }
.note-action { border: 1px solid var(--border, #d8cbbd); border-radius: 16px; background: transparent; color: var(--ink); padding: 10px 16px; min-height: 42px; }
.note-action:hover:not(:disabled) { background: var(--hover, #e1efda); border-color: var(--selected-border, #99bd95); }
.note-action:disabled { background: transparent; color: var(--muted); }
#skip { background: var(--ochre); color: var(--gold-text, #514827); border-color: transparent; }
#skip:hover:not(:disabled) { background: var(--gold-hover, #e7c267); }
#skip:disabled { background: var(--disabled, #eae1b9); color: var(--muted); }
.feedback, .keyboard-footer { color: var(--muted); }
.feedback.correct { color: var(--teal); }
.feedback.wrong, .setup-error { color: var(--error, #9b6533); }
.progress-dots .hit { background: var(--success, #70a87a); }
.progress-dots .miss { background: var(--error, #c3924b); }
.keyboard-panel { background: var(--paper); border: 0; color: var(--ink); box-shadow: none; padding: 24px 26px 20px; margin-top: 22px; border-radius: 30px 40px 32px 38px; }
.keyboard-toolbar { gap: 15px; margin-bottom: 18px; }
.keyboard-toolbar h2 { font-size: 14px; font-weight: 650; }
.keyboard-toolbar > div:first-child { gap: 8px 18px; }
.keyboard-label-toggle { color: var(--secondary, #5d7056); font-size: 12px; gap: 8px; }
.keyboard-controls { gap: 16px; }
.keyboard-controls .segmented button { font-size: 13px; padding: 9px 14px; }
.octave-control { color: var(--muted); font-size: 12px; }
.octave-control button { border-color: var(--border, #a7b99a); color: var(--ink); border-radius: 7px; width: 26px; height: 27px; }
.octave-control button:hover { background: var(--hover, #e1efda); }
.keyboard-footer { padding: 14px 8px 0; font-size: 12px; }
/* Preserve the two staggered QWERTY rows, unused keys, and computer keycaps. */
.typing-keyboard { max-width: 1110px; padding: 16px 24px 13px; background: var(--well, #e8e1cf); border: 1px solid var(--border, #cfc7b1); border-radius: 22px; }
.typing-key { border: 1px solid var(--key-edge, #486d51); border-bottom: 3px solid var(--key-edge, #35583f); border-radius: 8px; background: var(--key-dark, #53765b); color: var(--on-accent, #fff9e7); box-shadow: none; }
.typing-key.natural-key { background: var(--key-light, #fff9e7); color: var(--ink); border-color: var(--border, #d5d9b8); border-bottom-color: var(--key-light-edge, #b7c299); }
.typing-key.unused { background: var(--key-unused, #dcd6c4); color: var(--key-unused-text, #716f5c); border-color: var(--key-unused-edge, #cbc4af); border-bottom-color: var(--key-unused-edge, #bcb59e); box-shadow: none; }
.typing-letter { opacity: .85; font-size: 11px; }
.typing-note { font-size: 23px; }
.typing-key.active { background: var(--key-active, #b7dcc5); color: var(--active-text, #34493d); border-color: var(--key-active-edge, #7eaf91); box-shadow: none; }
.typing-key.hint { outline-color: var(--hint, #a47c24); }
.keyboard-panel:not(.typing-mode):not(.notes-mode) .piano-scroll { background: var(--key-frame, #4c7058); padding: 12px 12px 10px; border-radius: 18px; }
.piano { height: 190px; gap: 3px; }
.piano-key.white { height: 100%; background: var(--piano-white, #fffcf1); color: var(--piano-ink, #34493d); border: 1px solid var(--key-light-edge, #dce0c6); border-bottom: 5px solid var(--key-light-edge, #c1c9a9); border-radius: 4px 4px 8px 8px; padding-bottom: 20px; box-shadow: none; }
.piano-key.black { height: 61%; width: 4.4%; background: var(--key-dark, #2d4437); color: var(--on-accent, #fff9e7); border: 1px solid var(--key-edge, #223a2c); border-bottom: 5px solid var(--key-edge, #1f3629); border-radius: 0 0 6px 6px; padding-bottom: 13px; box-shadow: 0 2px 0 var(--key-edge, #223a2c); }
.piano-key .key-name { height: auto; line-height: 1.2; font-size: 18px; font-weight: 650; letter-spacing: -.4px; }
.piano-key.black .key-name { font-size: 13px; font-weight: 600; letter-spacing: -.2px; }
.piano-key.white.active { height: calc(100% - 2px); background: var(--key-active, #b7dcc5); border-bottom-color: var(--selected-border, #89b99a); box-shadow: none; }
.piano-key.black.active { background: var(--key-active-dark, #579373); border-bottom-color: var(--key-active-dark-edge, #39704f); }
.piano-key.hint { box-shadow: inset 0 0 0 3px var(--hint, #a47c24); }
.middle-c { color: var(--piano-c, #367557) !important; }
.note-choice { background: var(--note-tint, #d5e9d9); color: var(--ink); border-color: var(--selected-border, #aacdb4); border-radius: 14px; }
.note-choice:nth-child(-n+7) { background: var(--key-light, #fff9e7); color: var(--ink); border-color: var(--border, #d5d9b8); }
.note-choice:hover { border-color: var(--selected-border, #89b99a); }
.note-choice:active, .note-choice.hint { background: var(--key-active, #b7dcc5); color: var(--active-text, #34493d); border-color: var(--key-active-edge, #7eaf91); }
.run-clock { color: var(--teal); font-weight: 650; }
.run-overlay { background: var(--paper); border-radius: 22px; }
.run-overlay > span { color: var(--muted); }
.run-overlay > strong { font-weight: 650; }
.primary-button { background: var(--accent, #367557); color: var(--on-accent, #fff9e7); border-radius: 18px; font-weight: 650; }
.primary-button:hover { background: var(--accent-hover, #438464); }
dialog { background: var(--paper); border: 1px solid var(--border, #d5d9b8); border-radius: 30px; box-shadow: none; padding: 34px; }
dialog::backdrop { background: var(--backdrop, #34493d66); backdrop-filter: blur(6px); }
dialog h2 { font: 650 28px/1.2 'Avenir Next', 'Segoe UI', system-ui, sans-serif; letter-spacing: -.7px; }
dialog p { color: var(--muted); }
.dialog-close { color: var(--muted); right: 16px; top: 10px; }
.setup-grid select, .setup-grid input { background: var(--paper); border-color: var(--border, #d8cbbd); border-radius: 12px; }
.setup-grid small { font-weight: 400; color: var(--muted); }
kbd { background: var(--hover, #e2ebcd); }
.run-result { background: var(--hover, #dfedce); color: var(--accent, #367557); border-radius: 19px; }
.board-table th { background: var(--paper); color: var(--muted); }
.board-table th, .board-table td { border-color: var(--border, #dce2c4); }
.latest-result { background: var(--hover, #e7f1d8); }
.board-footnote, #board-storage { color: var(--muted); }
button:focus-visible, a:focus-visible, select:focus-visible, input:focus-visible,
input:focus-visible + .switch, .key-name-reveal:focus-visible { outline-color: var(--accent, #397c65); }
.staff-note:focus-visible .note-hit-area { stroke: var(--accent, #397c65); }
@media (min-width: 1500px) { .landscape span:nth-child(1) { left: -190px; } .landscape span:nth-child(2) { right: -165px; } .landscape span:nth-child(3) { left: -165px; } .landscape span:nth-child(4) { right: -155px; } }
@media (max-width: 1050px) { .scoreboard { gap: 18px 26px; } .session-actions { gap: 12px; } .keyboard-toolbar { align-items: flex-start; } .keyboard-controls { width: 100%; justify-content: space-between; } }
@media (max-width: 680px) {
  .landscape { opacity: .55; } .landscape::after { display: none; }
  .topbar { height: auto; min-height: 90px; padding: 20px 5% 14px; gap: 16px; }
  .brand-symbol { width: 36px; height: 36px; } .brand { font-size: 28px; }
  .header-actions { width: 100%; justify-content: space-between; }
  main { padding: 12px 4% 24px; }
  .mode-bar { margin-bottom: 24px; } .mode-bar > .segmented { width: 100%; }
  .mode-bar > .segmented button { min-width: 0; }
  .scoreboard { padding: 0 7px 20px; gap: 20px 25px; }
  .scoreboard strong { font-size: 26px; } .metric-label { font-size: 10px; letter-spacing: .3px; }
  .session-actions { justify-content: space-between; }
  .sheet { border-radius: 26px 30px 24px 30px; min-height: 320px; }
  .sheet-top { padding: 17px 16px 8px; } .practice-tag { font-size: 14px; }
  .staff { min-height: 195px; padding: 0 6px; }
  .sheet-bottom { padding: 10px 16px 18px; } .practice-toggle { font-size: 12px; }
  .note-actions { width: 100%; } .note-actions button { flex: 1; }
  .keyboard-panel { padding: 18px 16px 16px; border-radius: 26px 30px 24px 30px; } .keyboard-toolbar { padding: 0; }
  .keyboard-toolbar > div:first-child { gap: 8px 16px; } .keyboard-toolbar h2 { width: 100%; }
  .keyboard-controls { gap: 12px; } .keyboard-controls .input-switch button { font-size: 13px; padding: 10px 8px; }
  .typing-keyboard { padding: 13px 24px; border-radius: 16px; } .typing-note { font-size: 19px; }
  .piano { height: 170px; } .piano-key .key-name { font-size: 16px; } .piano-key.black .key-name { font-size: 12px; }
  .run-overlay { inset: 156px 14px 122px; } .run-overlay > strong { font-size: 27px; }
  dialog { padding: 25px; border-radius: 24px; } dialog h2 { font-size: 25px; }
}