.fret-main{display:flex;flex-direction:column;gap:20px}
.fret-back{display:inline-flex;align-self:flex-start;align-items:center;min-height:44px;text-decoration:none;font-size:13px;color:var(--muted);gap:8px}
.fret-back:hover{color:var(--accent)}
.fret-heading{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:8px}
.fret-heading h1{margin:0;font-size:clamp(30px,4vw,42px);line-height:1.3;letter-spacing:.5px}
.fret-heading p{margin:12px 0 0;font-size:14px;color:var(--muted)}
.mic-tools{display:flex;flex-direction:column;align-items:flex-end;gap:10px;min-width:220px}
.mic-status{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted)}
.mic-status>i{width:8px;height:8px;border-radius:50%;background:var(--dim)}
.mic-tools[data-state=listening] .mic-status{color:var(--ok)}
.mic-tools[data-state=listening] .mic-status>i{background:var(--ok)}
.mic-meter{display:block;width:70px;height:7px;border-radius:5px;background:var(--surface2);overflow:hidden}
.mic-meter i{display:block;height:100%;width:0;background:var(--ok);transition:width .1s}
.mic-tools .studio-button{min-height:44px;padding:6px 15px;font-size:12px;gap:8px}
.mic-tools svg{width:16px;height:16px}
.fret-settings{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;border:1px solid var(--line);border-radius:18px;background:var(--surface);padding:20px 24px}
.setting-block{display:flex;flex-direction:column;gap:8px;min-width:0}
.setting-label{font-size:12px;color:var(--muted);font-weight:500}
.fret-segment{display:flex;gap:5px;padding:4px;background:var(--bg);border:1px solid var(--line);border-radius:12px}
.fret-segment button{font:inherit;font-size:13px;color:var(--text2);background:transparent;border:0;min-height:42px;min-width:78px;padding:8px 15px;border-radius:8px;cursor:pointer;white-space:nowrap}
.fret-segment button[aria-checked=true]{background:var(--accent);color:var(--bg);font-weight:700}
.setting-block small{color:var(--muted);font-size:11px}
.target-card{position:relative;display:flex;align-items:center;justify-content:center;gap:30px;border:1px solid #657052;background:linear-gradient(135deg,#2c3b2e,var(--surface));border-radius:20px;padding:28px 100px;text-align:center;min-height:222px}
.target-copy{display:flex;flex-direction:column;align-items:center;gap:6px}
.target-prompt{font-size:15px;margin:0;color:var(--text2)}
.target-note{font:700 76px/1.2 var(--mono);color:var(--accent);letter-spacing:-2px}
.note-alias{font-size:12px;color:var(--muted);min-height:0}
.note-alias:empty{display:none}
.target-feedback{display:flex;flex-direction:column;align-items:center;gap:4px;margin-top:4px;min-height:3.6em;max-width:100%;color:var(--text2);font-size:13px;line-height:1.6}
.target-feedback[data-kind=correct]{color:var(--ok);font-weight:700}
.target-feedback[data-kind=wrong]{color:var(--danger)}
.target-feedback .heard-note{font-size:11px;font-weight:400;color:var(--muted)}
.target-feedback .heard-note:empty,.auto-next:empty{display:none}
.auto-next{color:var(--accent);font-size:12px;font-weight:500}
.question-number{position:absolute;right:22px;top:18px;font:12px var(--mono);color:var(--muted)}
.reference-button{position:absolute;right:24px;top:calc(50% - 22px);gap:8px;font-size:12px;min-height:44px;padding:8px 13px}
.reference-button svg{width:18px;height:18px}
.target-card:has(.reference-button:not([hidden])){padding-right:205px;padding-left:32px}
.board-card{padding:18px 16px 12px;border:1px solid var(--line);border-radius:18px;background:var(--surface);min-width:0;box-shadow:0 10px 28px #0001}
.board-scroll{overflow-x:auto;overscroll-behavior-x:contain;position:relative;padding:6px 4px 8px;scrollbar-color:var(--line) transparent;scrollbar-width:thin}
.fretboard{display:grid;grid-template-columns:40px repeat(13,minmax(48px,1fr));min-width:680px;isolation:isolate;align-items:stretch}
.board-corner,.fret-number{display:flex;align-items:center;justify-content:center;min-height:30px;font:11px var(--mono);color:var(--muted)}
.board-corner{font-family:var(--sans);font-size:9px}
.string-label{display:flex;align-items:center;justify-content:center;gap:5px;min-height:46px;color:var(--muted);font:12px var(--mono);border-radius:6px 0 0 6px}
.string-label b{font-weight:700}.string-label small{font-size:10px}
.string-label.active{background:var(--accent-soft);color:var(--accent)}
.fret-cell{position:relative;isolation:isolate;height:46px;padding:0;border:0;border-right:2px solid var(--fret-line);background:var(--fret-board);color:var(--fret-dot-ink);font-family:var(--mono);cursor:pointer;touch-action:pan-x pan-y}
.fret-cell:before{content:'';position:absolute;z-index:-1;top:50%;left:0;right:0;height:var(--string-weight);background:var(--fret-nut);opacity:.8;box-shadow:0 1px 2px #0002}
.fret-cell[data-fret="0"]{background:var(--surface);border-right:5px solid var(--fret-nut)}
.fret-cell.target-string:before{background:var(--accent);height:3px;opacity:1}
.fret-cell:enabled:hover{background:var(--surface2);box-shadow:inset 0 0 0 2px var(--accent)}
.fret-cell:focus-visible{outline-offset:-3px;z-index:2}
.fret-cell:disabled{cursor:default;opacity:1}
.fret-cell>span{display:inline-flex;align-items:center;justify-content:center;min-width:30px;height:30px;max-width:100%;border-radius:50%;font-size:12px;font-weight:700}
.fret-cell.answer>span{background:var(--fret-dot);box-shadow:0 2px 7px #0003}
.fret-cell.miss>span{background:var(--danger);color:var(--bg)}
.fret-cell.hint-region{background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent)}
.fret-marker{text-align:center;color:var(--muted);height:20px;font-size:13px;letter-spacing:3px}
.board-tip{font-size:11px;text-align:center;color:var(--muted);margin:10px 0 2px;line-height:1.7}
.board-touch-tip{display:none}
.answer-summary{text-align:center;color:var(--accent);font-size:12px;line-height:1.8;margin:10px 0 0}
.heard-note{flex-shrink:0;font:12px var(--mono);color:var(--muted)}
.fret-actions{display:flex;gap:12px;align-items:center}
.fret-actions .studio-button{min-width:144px}
.fret-actions .primary{margin-left:auto;min-width:200px}
.fret-actions button:disabled,.reference-button:disabled{opacity:.55;cursor:default;transform:none}
.fret-notes{display:flex;justify-content:space-between;gap:24px;color:var(--muted);font-size:11px;margin-top:0}
.fret-notes p{margin:0}.fret-notes a{text-underline-offset:3px}
.timing-card{padding:20px 24px;background:var(--surface);border:1px solid var(--line);border-radius:18px}
.timing-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:15px;flex-wrap:wrap}
.timing-heading h2{margin:0;font-size:15px}.timing-heading>span{font-size:12px;color:var(--muted)}
.timing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:12px}
.timing-stat{display:flex;flex-direction:column;gap:6px;padding:14px 16px;background:var(--bg);border:1px solid var(--line);border-radius:12px}
.timing-stat>span{font-size:12px;color:var(--text2)}.timing-stat>b{font:700 21px var(--mono);color:var(--accent)}.timing-stat>small{font-size:10px;color:var(--muted)}
.timing-grid[data-level=mastery] .timing-stat{flex-direction:row;align-items:center;gap:20px}.timing-grid[data-level=mastery] .timing-stat>b{margin-left:auto}
.timing-actions{margin-left:auto;display:flex;gap:8px}.timing-reset{font:inherit;font-size:12px;color:var(--text2);background:transparent;border:1px solid var(--line);border-radius:999px;padding:5px 13px;cursor:pointer}.timing-reset:hover:not(:disabled){color:var(--accent);border-color:var(--accent)}.timing-reset:disabled{opacity:.45;cursor:default}.timing-reset[hidden]{display:none}
.timing-note{font-size:10px;color:var(--muted);line-height:1.8;margin:14px 0 0}
html[data-theme=light] .target-card{background:linear-gradient(135deg,#e1ead6,var(--surface));border-color:#a9b690}
html[data-theme=light] .board-card{box-shadow:0 7px 24px #374c2908}
@media(max-width:900px){.target-card{padding-left:30px;padding-right:30px}.target-card:has(.reference-button:not([hidden])){padding-right:190px}.target-note{font-size:66px}}
@media(max-width:760px){
 .fret-main{gap:16px}.fret-back{font-size:12px;min-height:36px}.fret-heading{align-items:flex-start;flex-wrap:wrap;gap:16px;margin-bottom:0}.fret-heading h1{font-size:30px}.fret-heading p{font-size:12px;margin-top:8px}
 .mic-tools{flex-direction:row;align-items:center;justify-content:space-between;min-width:0;width:100%;gap:10px}.mic-status{font-size:11px;gap:7px}.mic-meter{width:46px}
 .fret-settings{padding:16px;flex-wrap:wrap;gap:16px}.setting-block{flex:1 1 220px}.fret-segment button{flex:1;min-width:0;padding:8px 12px;font-size:12px}.setting-block small{font-size:10px}
 .target-card{min-height:185px;padding:25px 16px 18px}.target-note{font-size:60px}.target-prompt{font-size:13px}.target-feedback{font-size:12px;max-width:270px}.question-number{right:14px;top:12px;font-size:10px}
 .target-card:has(.reference-button:not([hidden])){padding:25px 16px 18px;flex-direction:column;gap:14px}.reference-button{position:static;min-height:42px;font-size:11px}.target-copy{gap:3px}
 .board-card{padding:12px 8px}.fretboard{min-width:680px}.heard-note:empty{display:none}
 .board-touch-tip{display:block;text-align:center;font-size:10px;color:var(--muted);margin:0 0 4px}.board-tip{font-size:10px;text-align:left;padding:0 6px}
 .fret-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.fret-actions .studio-button{min-width:0;padding:10px 12px;font-size:12px}.fret-actions .primary{width:100%;grid-column:1/-1;margin:0}.fret-notes{flex-direction:column;gap:6px;font-size:10px}
 .timing-card{padding:16px}.timing-heading h2{font-size:14px}.timing-heading>span{font-size:10px}.timing-grid{gap:10px}.timing-stat{padding:12px}.timing-stat>b{font-size:18px}.timing-grid[data-level=mastery] .timing-stat{gap:10px}.timing-note{font-size:10px}
}