/* Practice-first layout: preserve timing and hand colours. */
header{padding:20px max(24px,3vw)}
main{padding-top:32px}
h1{font-size:clamp(36px,4vw,54px);letter-spacing:-2px;margin:12px 0}
main>p{margin:0 0 24px;max-width:650px}
.display-options{margin:20px 0 12px;background:#1a201b}
.course-path{margin:12px 0 0;padding:16px 20px;border:1px solid #394335;border-radius:12px;background:#1a201b}
summary{cursor:pointer;line-height:1.5}
.course-path>summary{font-weight:650;color:var(--ink)}
.course-path>summary span{float:right;color:var(--muted);font-size:12px;font-weight:400;padding-top:3px}
.course-path[open]>.path-heading{margin-top:24px}
.layout{margin-top:22px;gap:22px;align-items:start}
.panel{border-radius:16px;padding:24px}
aside.panel{background:#1b211c;position:sticky;top:18px}
#lessons{max-height:65vh;scrollbar-width:thin;scrollbar-color:#536047 transparent}
.lesson{border:1px solid transparent;margin:3px 0;padding:14px 12px}
.lesson:not(.active):hover{background:#2b342a;border-color:#46533f}
.lesson.active{border-color:#d7ee94;box-shadow:inset 3px 0 #52683c}
.top h2{font-size:clamp(23px,2.4vw,32px);letter-spacing:-.7px;margin-bottom:0}
#eyebrow{margin-bottom:10px;font-size:10px;color:var(--lime)}
#description{font-size:14px;margin:14px 0 20px;max-width:75ch}
.learning-notes{margin-bottom:20px;border:1px solid #3d4a35;border-radius:10px;background:#1b221a;padding:14px 16px}
.learning-notes>summary{font-size:14px;font-weight:650;color:var(--lime)}
.learning-notes[open]>.lesson-heading{margin-top:18px}
.controls{padding:18px;background:#151c16;border:1px solid #48543d;border-radius:12px;gap:12px}
.controls button{min-height:46px}
.controls .tempo{padding:0 6px;min-width:180px}
#bpm{font-size:18px;color:var(--lime);font-variant-numeric:tabular-nums}
.options{margin:13px 4px 20px;align-items:center;justify-content:space-between}
.options label{display:flex;align-items:center;gap:9px}
.tempo-guide{margin:18px 0;background:transparent}
.tempo-choice b{font-size:21px}.tempo-choice b small{font-size:11px;font-weight:400;color:var(--muted)}
.drum-view{margin:20px 0;grid-template-columns:minmax(160px,230px) 1fr}
.drum-view svg{max-height:230px}
.score{border-radius:12px}
.study-options,.training-options{padding:16px;background:#1a211a}
.secondary:hover{background:#303c29;border-color:#a0b77b}
button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #a9cbff;outline-offset:3px}
footer{line-height:1.8;max-width:100ch;margin:28px auto 0;text-align:center}
@media(max-width:900px){aside.panel{position:static}.panel{padding:18px}.course-path>summary span{float:none;display:block;margin-left:17px}}
@media(max-width:550px){main{padding-top:24px}header .tag{display:none}.controls button{flex:1;padding:12px}.controls .tempo{flex-basis:100%;margin-top:8px}.drum-view{grid-template-columns:1fr}.options{gap:14px}.learning-notes{padding:12px}.course-path{padding:14px}.top{gap:8px}}
/* Keep live feedback compact and the drum immediately above its notation. */
.mic-panel{display:grid;grid-template-columns:1fr auto;gap:6px 16px;padding:12px 14px;margin:12px 0;top:6px}
.mic-panel>h3{font-size:13px;margin:0;align-self:center}
.mic-actions{margin:0;justify-content:flex-end;gap:6px}
.mic-actions button{font-size:11px;padding:7px 10px}
.mic-status-row{margin:0;font-size:11px}
#mic-level{width:110px;align-self:center;justify-self:end;height:6px}
.mic-live-feedback{grid-column:1/-1;margin:0;min-height:26px}
.mic-settings,.assessment-result{grid-column:1/-1}
.mic-settings>summary{font-size:11px;color:var(--muted)}
.mic-settings[open]{border-top:1px solid #46533b;padding-top:10px}
.mic-panel .timing-legend{font-size:11px;gap:10px}
.drum-view{margin:10px 0 6px;padding:12px 16px;grid-template-columns:minmax(140px,190px) 1fr}
.drum-view svg{max-height:190px}
.drum-copy p{margin:6px 0;font-size:12px}
.drum-copy h3{font-size:16px}
#score{margin-top:6px;margin-bottom:6px}
#steps{margin-top:8px;margin-bottom:8px}
.settings-trigger.study-options,.settings-trigger.training-options{display:inline-flex;margin:14px 8px 6px 0;padding:10px 16px;font-size:13px}
.settings-dialog{width:min(740px,calc(100vw - 28px));max-height:85dvh;padding:24px;background:#202820;color:var(--ink);border:1px solid #637154;border-radius:18px;box-shadow:0 24px 90px #0009}
.settings-dialog::backdrop{background:#060c08b8;backdrop-filter:blur(4px)}
.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:18px}
.dialog-heading h2{margin:0;font-size:24px}
.dialog-heading button{padding:8px 13px;font-size:12px}
.settings-dialog .study-options,.settings-dialog .training-options{display:block!important;margin:0;padding:0;border:0;background:transparent}
.settings-dialog p{font-size:13px;line-height:1.7;color:var(--muted)}
.settings-dialog .training-grid{margin-top:12px}
#session-status{font-size:12px;margin-top:10px}
@media(max-width:650px){.mic-panel{grid-template-columns:1fr auto}.mic-panel>h3{grid-column:1/-1}.mic-actions{grid-column:1/-1;justify-content:flex-start}.mic-live-feedback{display:flex;flex-wrap:wrap;gap:5px}.mic-panel .timing-legend{margin:0}.drum-view{grid-template-columns:140px 1fr;gap:10px}.drum-view svg{max-height:160px}.settings-dialog{padding:18px}.settings-dialog .training-grid{grid-template-columns:1fr 1fr}}
@media(max-width:400px){.drum-view{grid-template-columns:110px 1fr;padding:10px}.drum-copy h3{font-size:14px}.settings-dialog .training-grid{grid-template-columns:1fr}.hand-legend{flex-wrap:wrap}}