.home{display:grid;grid-template-columns:auto minmax(0,1fr);gap:clamp(20px,3vw,44px);align-items:start}.circle-wrap{position:relative;width:min(620px,calc(100dvh - 150px),52vw);margin-inline:auto}.circle{display:block;width:100%;height:auto}.circle-signature{fill:var(--muted);font-family:var(--font);font-size:13px;font-weight:600;text-anchor:middle;dominant-baseline:central}.circle-cell{cursor:pointer}.circle-cell:focus{outline:none}.circle-cell-bg{fill:var(--surface);stroke:var(--paper);stroke-width:2.5;transition:fill .16s ease-out}.circle-cell:hover .circle-cell-bg,.circle-cell:focus-visible .circle-cell-bg{stroke:var(--felt);stroke-width:3}.circle-cell[data-status=started] .circle-cell-bg{fill:var(--felt-soft)}.circle-cell[data-status=seated] .circle-cell-bg{fill:var(--felt)}.circle-cell-name{fill:var(--ink);font-family:var(--font);font-size:26px;font-weight:700;text-anchor:middle;dominant-baseline:central;pointer-events:none}.circle-cell[data-ring=inner] .circle-cell-name{font-size:19px}.circle-cell[data-status=seated] .circle-cell-name{fill:var(--on-felt)}.circle-tick{fill:none;stroke:var(--line);stroke-width:4.5;stroke-linecap:round;pointer-events:none}.circle-tick[data-state=half]{stroke:var(--felt);stroke-opacity:.4}.circle-tick[data-state=seated]{stroke:var(--felt)}.circle-cell[data-status=seated] .circle-tick{stroke:var(--on-felt);stroke-opacity:.75}.circle-next,.circle-selected{fill:none;pointer-events:none}.circle-next{stroke:var(--felt);stroke-width:4}.circle-cell[data-status=seated] .circle-next{stroke:var(--felt-deep)}.circle-selected{stroke:var(--ink);stroke-width:2.5;stroke-dasharray:6 5}@media (prefers-reduced-motion: no-preference){.circle-next{animation:circle-breathe 2.4s ease-in-out infinite}}@keyframes circle-breathe{50%{stroke-opacity:.35}}.circle-center{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:36%;display:grid;justify-items:center;gap:4px;text-align:center}.circle-center-lead{color:var(--muted);font-size:clamp(.72rem,1.4vw,.9rem);font-weight:550}.circle-center-big{font-size:clamp(1.3rem,3.4vw,2.3rem);line-height:1.05;font-weight:700;font-stretch:86%;letter-spacing:-.02em;text-wrap:balance}.circle-center-part{color:var(--felt);font-size:clamp(.72rem,1.4vw,.95rem);font-weight:650}.circle-center .button{margin:4px 0}.key-detail{display:grid;gap:12px;min-width:0;scroll-margin-top:80px}.key-detail-title{font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.1;font-stretch:88%;letter-spacing:-.015em}.key-detail-meta{margin-top:2px;color:var(--muted)}.parts{list-style:none;margin:0;padding:4px 16px;border-radius:var(--radius-l);background:var(--surface);border:1px solid var(--line)}.part{display:grid;grid-template-columns:22px minmax(0,1fr) auto auto;gap:4px 12px;align-items:center;padding:6px 0;border-bottom:1px solid var(--line)}.part:last-child{border-bottom:0}.part-number{font-family:Georgia,Times New Roman,serif;font-size:1.2rem;color:var(--felt)}.part-body{display:grid;min-width:0}.part-title{font-weight:650}.part-goal{font-size:.86rem;color:var(--muted);line-height:1.4}.part-status{font-size:.85rem;font-weight:600;color:var(--muted);white-space:nowrap}.part-status[data-state=seated]{color:var(--ok)}.part-dots{letter-spacing:2px;color:var(--ok)}.part-extra{display:inline-block;padding:0 8px;border-radius:999px;background:var(--surface-sunk);border:1px solid var(--line);color:var(--ink)}.part .button{min-height:40px;padding:0 14px}.circle-legend{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.85rem;color:var(--muted)}.circle-legend span{display:inline-flex;align-items:center;gap:6px}.circle-swatch{width:14px;height:14px;border-radius:4px;border:1px solid var(--line);background:var(--surface)}.circle-swatch[data-status=started]{background:var(--felt-soft)}.circle-swatch[data-status=seated]{background:var(--felt)}body[data-view=home] .shell{padding-bottom:16px}@media (orientation: landscape) and (max-height: 760px){.key-detail{gap:8px}.part{padding:4px 0}.part .button{min-height:36px}}body[data-view=home] .mic-banner[data-tone=info]{display:none}.session-bar{display:flex;align-items:center;gap:8px 16px;flex-wrap:wrap;margin:-8px 0 clamp(8px,1.5vh,20px) -18px}.session-lesson{font-weight:600;color:var(--muted);margin-right:auto}.session-progress{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:.95rem;white-space:nowrap}progress{-webkit-appearance:none;-moz-appearance:none;appearance:none;height:8px;border:0;border-radius:999px;background:var(--line);overflow:hidden}progress::-webkit-progress-bar{background:var(--line)}progress::-webkit-progress-value{background:var(--felt);border-radius:999px;transition:width .25s ease}progress::-moz-progress-bar{background:var(--felt);border-radius:999px}.session-progress progress{width:140px}.session-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:clamp(20px,3vw,40px);align-items:start}.task-lead{color:var(--muted);font-size:1rem;line-height:1.2}.task-name{font-size:clamp(2.2rem,4.4vw,3.6rem);line-height:1.05;font-weight:700;font-stretch:88%;letter-spacing:-.02em;text-wrap:balance}.task-name.is-numeral,.chain-numeral{font-family:Georgia,Times New Roman,serif;font-stretch:100%;letter-spacing:.02em}.task-detail{margin-top:6px;font-size:1.25rem;font-weight:550;color:var(--felt);min-height:1.9rem}.scale-progress{display:block;width:100%;max-width:360px;margin-top:8px}.verdict{margin-top:14px;padding:14px 18px;border-radius:var(--radius-m);background:var(--surface);border-left:6px solid var(--line);font-size:1.35rem;font-weight:650;line-height:1.3;min-height:62px}.verdict[data-kind=try]{background:var(--try-soft);border-left-color:var(--try);color:var(--try)}.verdict[data-kind=match]{background:var(--ok-soft);border-left-color:var(--ok);color:var(--ok);animation:verdict-match .35s ease-out}@keyframes verdict-match{0%{transform:scale(.97)}}.heard{margin-left:auto;align-self:center;color:var(--muted);font-size:.95rem}.task-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}.chain{list-style:none;margin:10px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.chain-step{display:grid;justify-items:center;min-width:64px;padding:6px 12px;border-radius:var(--radius-m);background:var(--surface);border:1px solid var(--line)}.chain-symbol{font-size:1.25rem;font-weight:700}.chain-numeral{font-size:.85rem;font-weight:600;color:var(--muted)}.chain-step[data-state=done]{background:var(--ok-soft);border-color:transparent;color:var(--ok)}.chain-step[data-state=current]{background:var(--felt);border-color:var(--felt);color:var(--on-felt)}.chain-step[data-state=done] .chain-numeral,.chain-step[data-state=current] .chain-numeral{color:inherit}.sheet{display:grid;gap:12px;padding:16px;border-radius:var(--radius-l);background:var(--surface);border:1px solid var(--line)}.staff-placeholder{display:flex;align-items:center;justify-content:center;min-height:150px;padding:20px;border-radius:var(--radius-m);border:1.5px dashed var(--line);color:var(--muted);text-align:center}.summary{max-width:62ch;padding:clamp(24px,5vh,56px) 0}.summary h1{font-size:clamp(1.9rem,3.4vw,2.8rem);line-height:1.1;letter-spacing:-.02em;font-weight:700}.summary-detail{margin-top:12px;font-size:1.15rem;color:var(--muted)}body[data-input=midi] .diagnostics{display:none}.diagnostics{margin-top:28px;border-top:1px solid var(--line);padding-top:8px}.diagnostics summary{cursor:pointer;color:var(--muted);font-size:.92rem;min-height:var(--tap);display:flex;align-items:center}.diagnostics-body{padding:8px 0 12px;max-width:640px}.reading{display:flex;align-items:baseline;gap:16px}.pitch-note{font-size:2.4rem;font-weight:700;min-width:4ch}.pitch-detail,.mic-info{color:var(--muted);font-size:.92rem}.tuner{position:relative;height:2rem;margin:8px 0 12px}.tuner-scale{position:absolute;inset:.75rem 0 auto;height:4px;background:var(--line);border-radius:2px}.tuner-center{position:absolute;left:50%;top:-6px;width:2px;height:16px;background:var(--muted)}.tuner-needle{position:absolute;top:.25rem;left:50%;width:4px;height:1.5rem;border-radius:2px;background:var(--felt);transform:translate(-50%);transition:left 80ms linear}.meters{display:flex;flex-wrap:wrap;gap:8px 24px;font-size:.92rem;color:var(--muted)}.meters label{display:flex;align-items:center;gap:8px}.meters progress{width:10rem}@media (max-width: 900px){.session-grid{grid-template-columns:minmax(0,1fr)}}@media (max-width: 640px){.session-bar{margin-left:0}.session-progress progress{width:90px}}@media (max-width: 900px),(orientation: portrait){.home{grid-template-columns:minmax(0,1fr)}.circle-wrap{width:min(100%,620px)}}@media (max-width: 520px){.circle-center .circle-center-lead{display:none}.circle-center .button{min-height:32px;padding:0 12px;font-size:.85rem}}@media (orientation: landscape) and (max-height: 820px) and (min-width: 901px){.session{margin-top:calc(-1*clamp(4px,1.5vw,16px))}.task-name{font-size:clamp(2rem,7vh,3.6rem)}.verdict{margin-top:10px;padding:10px 16px;min-height:0;font-size:1.2rem}.session .keybed{margin-top:12px}.session .keyboard{max-height:27vh}}@media (orientation: landscape) and (max-height: 820px) and (min-width: 901px){body[data-view=session]{display:flex;flex-direction:column;height:100dvh}body[data-view=session] .shell{flex:1 1 auto;display:flex;flex-direction:column;width:100%;min-height:0;padding-bottom:0}body[data-view=session] .session{flex:1 1 auto;display:flex;flex-direction:column;min-height:0}body[data-view=session] .session .keybed{flex:1 1 auto;min-height:96px;display:flex;margin-top:8px}body[data-view=session] .session .keyboard{height:100%;max-height:260px}body[data-view=session] .diagnostics{margin-top:4px;padding-top:0}body[data-view=session] .diagnostics:not([open]) summary{min-height:36px}}