.app-menubar{height:43px;position:sticky;top:76px;z-index:20;display:flex;align-items:stretch;gap:2px;padding-inline:24px;background:var(--card);border-bottom:1px solid var(--line);box-shadow:0 5px 18px rgba(20,32,55,.04)}.app-menubar details{position:relative}.app-menubar summary{height:42px;display:flex;align-items:center;padding:0 14px;list-style:none;font-size:13px;font-weight:700;color:var(--muted);cursor:pointer;border-radius:8px}.app-menubar summary::-webkit-details-marker{display:none}.app-menubar details[open] summary,.app-menubar summary:hover{background:var(--blue2);color:var(--blue)}.menu-popup{position:absolute;inset-inline-start:0;top:40px;min-width:210px;padding:7px;background:var(--card);border:1px solid var(--line);border-radius:13px;box-shadow:0 18px 45px rgba(16,28,50,.16)}.menu-popup button{display:block;width:100%;border:0;background:transparent;color:var(--ink);padding:10px 12px;border-radius:8px;text-align:start;font-size:13px}.menu-popup button:hover{background:var(--blue2);color:var(--blue)}
.lesson-grid{display:block}.lesson-stage{margin-bottom:12px;background:var(--card);border:1px solid var(--line);border-radius:17px;overflow:hidden}.lesson-stage>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:13px;padding:18px 20px;font-weight:850}.lesson-stage>summary::-webkit-details-marker{display:none}.lesson-stage>summary:before{content:'⌄';width:30px;height:30px;display:grid;place-items:center;border-radius:9px;background:var(--blue2);color:var(--blue);transition:.2s}.lesson-stage[open]>summary:before{transform:rotate(180deg)}.lesson-stage>summary small{margin-inline-start:auto;color:var(--muted);font-weight:500}.lesson-list{border-top:1px solid var(--line)}.lesson-row{display:grid;grid-template-columns:52px minmax(180px,.7fr) minmax(240px,1.5fr) 90px;align-items:center;gap:15px;padding:14px 20px;border-bottom:1px solid var(--line);min-height:74px}.lesson-row:last-child{border:0}.lesson-row:hover{background:color-mix(in srgb,var(--blue) 4%,transparent)}.lesson-row .number{width:36px;height:36px;border-radius:10px;background:var(--blue2);color:var(--blue);display:grid;place-items:center;font-weight:850}.lesson-row.done .number{background:#e7f8f2;color:var(--green)}.lesson-row h3{font-size:15px;margin:0 0 4px}.lesson-row p{font-size:12px;color:var(--muted);margin:0}.lesson-row .row-info{font-size:12px;color:var(--muted)}.lesson-row button{border:0;background:var(--ink);color:#fff;padding:9px 13px;border-radius:9px;font-weight:750}@media(max-width:800px){.app-menubar{overflow-x:auto;padding-inline:8px}.app-menubar summary{white-space:nowrap}.lesson-row{grid-template-columns:42px 1fr 72px}.lesson-row .row-info{display:none}}
.hands>div{transition:transform .16s,background .16s,box-shadow .16s}.hands>div.hand-active{background:var(--blue)!important;color:#fff!important;transform:translateY(-4px) scale(1.04);box-shadow:0 9px 24px color-mix(in srgb,var(--blue) 28%,transparent)}
.practice-focus .app-menubar{display:none}.practice-focus header{box-shadow:0 4px 20px rgba(20,32,55,.05)}.practice-focus .practice-card{border:0;border-radius:24px;box-shadow:0 18px 55px rgba(25,43,77,.09);background:var(--card)}.practice-focus .live-metrics{gap:10px;border:0}.practice-focus .live-metrics span{border:0!important;background:var(--bg);border-radius:13px;padding:9px}.training-coach{display:grid;grid-template-columns:112px 1fr;gap:15px;align-items:stretch;margin:4px 0 13px}.coach-next{border-radius:17px;background:var(--blue);color:#fff;display:grid;place-items:center;padding:9px;text-align:center;box-shadow:0 10px 25px color-mix(in srgb,var(--blue) 25%,transparent)}.coach-next small{font-size:11px;opacity:.8}.coach-next strong{font-size:38px;line-height:1}.coach-guidance{position:relative;border:1px solid var(--line);border-radius:17px;padding:11px 18px;background:var(--bg);display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:7px 13px}.coach-guidance>span{font-size:11px;font-weight:800;color:var(--blue);background:var(--blue2);padding:5px 9px;border-radius:99px}.coach-guidance>b{font-size:16px}.coach-guidance>small{grid-column:1/3;color:var(--muted)}.coach-guidance>em{grid-column:3;grid-row:2;font-style:normal;font-weight:800;color:var(--blue)}.lesson-progress{grid-column:1/4;height:5px;border-radius:99px;background:var(--line);overflow:hidden}.lesson-progress i{display:block;width:0;height:100%;background:var(--blue);border-radius:inherit;transition:width .18s}.practice-focus .prompt{display:flex;flex-wrap:wrap;align-content:center;justify-content:center;direction:rtl;text-align:center;min-height:105px;font-size:33px;line-height:1.75;letter-spacing:.04em;background:linear-gradient(145deg,var(--bg),color-mix(in srgb,var(--blue) 4%,var(--bg)));border:1px solid var(--line)}.practice-focus .prompt span{min-width:.42em}.practice-focus .prompt .current{background:var(--blue);color:#fff;border:0;border-radius:7px;padding:0 4px;box-shadow:0 6px 16px color-mix(in srgb,var(--blue) 28%,transparent);transform:translateY(-2px)}.practice-focus .finger-hint{display:none}.practice-focus .key small{display:none}.practice-focus .key{font-size:19px;font-weight:750}.practice-card.home-stage .key:not(.learned):not(.active){opacity:.22;filter:grayscale(1);transform:scale(.94)}.practice-card.home-stage .key.learned{opacity:1;background:color-mix(in srgb,var(--blue) 5%,var(--card))}.practice-card.home-stage .key.active{background:var(--blue);transform:translateY(2px) scale(1.08)}
@media(max-height:780px){.training-coach{grid-template-columns:95px 1fr}.coach-next strong{font-size:31px}.practice-focus .prompt{min-height:82px;font-size:28px}.practice-focus .live-metrics{margin-bottom:6px}.practice-focus .practice-card{padding-top:12px}.practice-focus .hands{margin-top:5px}}