:root{color:#18332f;font-synthesis:none;--ink:#18332f;--muted:#6d7973;--cream:#fffaf2;--paper:#fffdf8;--coral:#ef6547;--coral-dark:#d95034;--peach:#fbe6d8;--green:#2d665b;--line:#e9e2d7;--ochre:#e8a736;--shadow:0 18px 54px #3d322314;background:#fffaf2;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{background:var(--cream)}body{background:radial-gradient(circle at 75% 4%, #f1bb6b17, transparent 25%), var(--cream);min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible,label:focus-within{outline-offset:3px;outline:3px solid #ef654759}button:disabled{cursor:not-allowed;opacity:.45}.app-shell{min-height:100vh}.icon{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;flex:none;width:20px;height:20px}.app-header{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);z-index:20;background:#fffaf2d9;border-bottom:1px solid #18332f14;justify-content:space-between;align-items:center;height:82px;padding:0 max(28px,50vw - 610px);display:flex;position:sticky;top:0}.brand{cursor:pointer;letter-spacing:-.6px;background:0 0;border:0;align-items:center;gap:11px;font-family:Georgia,serif;font-size:23px;font-weight:700;display:flex}.logo-mark{border:2px solid var(--ink);background:var(--paper);border-radius:50%;width:38px;height:38px;position:relative;overflow:hidden}.logo-mark:before,.logo-mark:after,.logo-mark span{content:"";background:var(--ink);opacity:.55;height:1px;position:absolute;left:5px;right:5px}.logo-mark:before{top:12px}.logo-mark span{top:18px}.logo-mark:after{top:24px}.logo-mark i{background:var(--coral);border-radius:50%;width:9px;height:7px;position:absolute;top:15px;left:15px;transform:rotate(-15deg)}.logo-mark b{background:var(--coral);width:2px;height:14px;position:absolute;top:5px;left:23px}.desktop-nav{align-self:stretch;gap:32px;display:flex}.desktop-nav button{text-transform:capitalize;color:var(--muted);cursor:pointer;background:0 0;border:0;padding:0 4px;font-size:14px;position:relative}.desktop-nav button.active{color:var(--ink);font-weight:700}.desktop-nav button.active:after{content:"";background:var(--coral);border-radius:2px 2px 0 0;height:3px;position:absolute;bottom:0;left:0;right:0}.avatar{color:#fff;background:var(--green);cursor:pointer;letter-spacing:.4px;border:0;border-radius:50%;width:38px;height:38px;font-size:11px;font-weight:800}.bottom-nav{display:none}.page{max-width:1220px;margin:0 auto;padding:58px 28px 90px}.eyebrow{color:var(--coral-dark);letter-spacing:2.2px;margin:0 0 10px;font-size:11px;font-weight:800}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:Georgia,Times New Roman,serif}h1{letter-spacing:-2.8px;margin-bottom:18px;font-size:clamp(40px,5vw,64px);line-height:.98}h2{letter-spacing:-1px;font-size:30px}p{color:var(--muted);line-height:1.65}.primary,.secondary,.text-button{cursor:pointer;border:0;justify-content:center;align-items:center;gap:9px;display:inline-flex}.primary{background:var(--coral);color:#fff;border-radius:7px;min-height:50px;padding:0 23px;font-weight:800;box-shadow:0 8px 20px #ef654733}.primary:hover{background:var(--coral-dark);transform:translateY(-1px)}.primary .icon{width:17px}.secondary{background:0 0;border:1px solid #cfc8bc;border-radius:6px;min-height:44px;padding:0 17px;font-weight:700}.secondary:hover{border-color:var(--ink)}.text-button{color:var(--green);background:0 0;padding:8px 0;font-size:13px;font-weight:750}.text-button .icon{width:15px}.wide{width:100%}.welcome-row{justify-content:space-between;align-items:flex-end;margin-bottom:42px;display:flex}.welcome-row h1{margin-bottom:10px}.welcome-row p:last-child{margin-bottom:0}.week-chip{border:1px solid var(--line);text-align:center;background:var(--paper);border-radius:8px;width:64px;height:72px;overflow:hidden;box-shadow:0 8px 30px #3a2d1a0d}.week-chip span{background:var(--coral);color:#fff;text-transform:uppercase;letter-spacing:1px;padding:5px;font-size:10px;font-weight:800;display:block}.week-chip strong{margin-top:8px;font-family:Georgia,serif;font-size:28px;display:block}.quick-card{background:var(--green);color:#fff;min-height:280px;box-shadow:var(--shadow);border-radius:14px;grid-template-columns:1.1fr .9fr;align-items:stretch;display:grid;overflow:hidden}.quick-copy{padding:43px 48px;position:relative}.quick-copy:after{content:"";border:1px solid #ffffff17;border-radius:50%;width:160px;height:160px;position:absolute;bottom:-90px;right:-38px}.quick-copy .warm-label{color:#ffbfa9;letter-spacing:2px;font-size:10px;font-weight:800}.quick-copy h2{margin:17px 0 10px;font-size:34px}.quick-copy p{color:#ffffffb3;max-width:470px}.quick-actions{align-items:center;gap:24px;margin-top:28px;display:flex}.quick-actions .text-button{color:#fff}.staff-preview{color:var(--ink);background:#f4e8d7;flex-direction:column;justify-content:center;align-items:center;padding:26px 45px;display:flex;position:relative}.staff-preview:before{content:"";opacity:.25;background-image:radial-gradient(#aa9e8e .7px,#0000 .7px);background-size:5px 5px;position:absolute;inset:0}.staff-preview .staff-frame{width:100%;position:relative}.staff-preview>span{color:#6e6659;margin-top:-8px;font-family:Georgia,serif;font-style:italic;position:relative}.stats-grid{background:var(--line);border:1px solid var(--line);border-radius:10px;grid-template-columns:repeat(3,1fr);gap:1px;margin:26px 0 78px;display:grid;overflow:hidden}.stat{background:var(--paper);grid-template-columns:auto 1fr;align-content:center;column-gap:10px;min-height:124px;padding:28px 34px;display:grid}.stat strong{color:var(--coral-dark);font-family:Georgia,serif;font-size:38px;line-height:1}.stat>span{align-self:end;padding-bottom:3px;font-weight:800}.stat small{color:var(--muted);grid-column:2;font-size:11px}.section-title{justify-content:space-between;align-items:end;margin-bottom:24px;display:flex}.section-title h2{margin-bottom:0;font-size:36px}.lesson-strip{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.lesson-card{text-align:left;cursor:pointer;border:0;border-radius:10px;min-height:315px;padding:26px 28px;transition:transform .2s;position:relative;overflow:hidden}.lesson-card:hover{transform:translateY(-4px)}.lesson-card.coral{background:#f9dfd2}.lesson-card.ochre{background:#f4e7c9}.lesson-card.green{background:#dce9df}.lesson-number{color:#18332f1a;font:64px/1 Georgia,serif;position:absolute;top:12px;right:18px}.lesson-card small{letter-spacing:1.5px;font-size:9px;font-weight:900}.lesson-card h3{margin:8px 0;font-size:25px}.lesson-card p{max-width:240px;font-size:13px;line-height:1.5}.mini-staff,.line-art{height:84px;color:var(--green);justify-content:center;align-items:center;font-size:50px;display:flex;position:relative}.mini-staff:before{content:"";background:repeating-linear-gradient(#0000 0 7px,#18332f66 7px 8px);width:120px;height:34px;position:absolute}.mini-staff{font-size:26px}.mini-staff:after{content:"●";position:relative}.lesson-link{align-items:center;gap:5px;font-size:11px;font-weight:800;display:flex;position:absolute;bottom:24px;left:28px}.lesson-link .icon{width:13px}.page-heading{max-width:700px;margin-bottom:48px}.page-heading h1{font-size:50px}.page-heading>p:last-child{font-size:17px}.setup-layout{grid-template-columns:minmax(0,1fr) 320px;align-items:start;gap:58px;display:grid}.setup-main{gap:52px;display:grid}.setup-block{border-bottom:1px solid var(--line);padding-bottom:48px}.step-title{align-items:flex-start;gap:16px;margin-bottom:25px;display:flex}.step-title>span{background:var(--ink);color:#fff;border-radius:50%;flex:none;place-items:center;width:29px;height:29px;font:16px Georgia,serif;display:grid}.step-title h2{margin:0 0 3px;font-size:25px}.step-title p{margin:0;font-size:13px}.segmented{display:grid}.clef-options{border:1px solid var(--line);background:var(--paper);border-radius:9px;grid-template-columns:repeat(3,1fr);overflow:hidden}.clef-options button{border:0;border-right:1px solid var(--line);cursor:pointer;background:0 0;flex-direction:column;justify-content:center;align-items:center;min-height:112px;display:flex;position:relative}.clef-options button:last-child{border:0}.clef-options button.active{background:var(--peach);box-shadow:inset 0 -3px var(--coral)}.clef-options b{font-size:33px;font-weight:400;line-height:1}.clef-options span{text-transform:capitalize;margin-top:5px;font-size:13px;font-weight:750}.clef-options small{background:var(--green);color:#fff;letter-spacing:.5px;text-transform:uppercase;border-radius:10px;padding:3px 6px;font-size:8px;position:absolute;top:7px;right:8px}.clef-label{text-transform:uppercase;letter-spacing:1.5px;margin:25px 0 11px;font-family:inherit;font-size:11px}.picker-toolbar{align-items:center;gap:15px;margin-bottom:11px;display:flex}.picker-toolbar span{color:var(--muted);margin-right:auto;font-size:12px}.picker-toolbar button{color:var(--green);cursor:pointer;background:0 0;border:0;font-size:11px;font-weight:750}.note-chips{grid-template-columns:repeat(auto-fill,minmax(48px,1fr));gap:7px;display:grid}.note-chips button{border:1px solid var(--line);background:var(--paper);cursor:pointer;border-radius:6px;justify-content:center;align-items:baseline;height:58px;padding-top:14px;display:flex}.note-chips button.selected{border-color:var(--coral);background:var(--peach);box-shadow:inset 0 -3px var(--coral)}.note-chips strong{font:23px Georgia,serif}.note-chips small{color:var(--muted);font-size:9px}.input-options{grid-template-columns:1fr 1fr;gap:12px;display:grid}.input-options>button{border:1px solid var(--line);background:var(--paper);text-align:left;cursor:pointer;border-radius:8px;align-items:center;gap:14px;min-height:83px;padding:17px;display:flex}.input-options>button.active{border-color:var(--coral);background:#fff8f2}.input-options>button>.icon,.key-icon{background:var(--peach);width:36px;height:36px;color:var(--coral-dark);border-radius:50%;padding:8px}.key-icon{place-items:center;padding:0;font-size:19px;display:grid}.input-options>button>span:nth-child(2){flex-direction:column;flex:1;display:flex}.input-options strong{font-size:13px}.input-options small{color:var(--muted);margin-top:4px}.input-options i{border:1px solid #bbb3a7;border-radius:50%;width:15px;height:15px}.input-options button.active i{border:4px solid var(--coral)}.setup-aside{gap:14px;display:grid;position:sticky;top:108px}.photo-card,.session-card{border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:25px}.photo-card{text-align:center}.photo-icon{background:var(--peach);width:46px;height:46px;color:var(--coral-dark);border-radius:50%;place-items:center;margin:0 auto 12px;display:grid}.photo-card h3,.session-card h3{margin-bottom:7px;font-size:20px}.photo-card p{font-size:12px;line-height:1.5}.file-button{cursor:pointer;position:relative}.file-button input{opacity:0;cursor:pointer;width:100%;position:absolute;inset:0}.privacy-note{color:var(--muted);margin-top:14px;line-height:1.4;display:block}.photo-preview{border:1px solid var(--line);border-radius:6px;margin-top:14px;overflow:hidden}.photo-preview img{object-fit:cover;width:100%;max-height:130px;display:block}.photo-preview span{color:var(--green);justify-content:center;align-items:center;gap:4px;padding:7px;font-size:10px;display:flex}.photo-preview .icon{width:12px}.session-card{text-align:center}.attempt-options{border:1px solid var(--line);border-radius:6px;grid-template-columns:repeat(3,1fr);margin:14px 0 5px;display:grid;overflow:hidden}.attempt-options button{border:0;border-right:1px solid var(--line);cursor:pointer;background:#fff;height:38px;font-weight:800}.attempt-options button:last-child{border:0}.attempt-options button.active{background:var(--green);color:#fff}.session-card>span{color:var(--muted);font-size:10px}.staff-frame{width:100%;max-width:520px;margin:0 auto}.staff-frame svg{width:100%;display:block;overflow:visible}.staff-line{stroke:#52645f;stroke-width:1.3px}.ledger{stroke:var(--ink);stroke-width:1.5px}.note-head{fill:var(--ink)}.note-stem{stroke:var(--ink);stroke-width:4px;stroke-linecap:round}.clef{fill:var(--ink);font-family:Apple Symbols,Noto Music,serif;font-size:85px}.clef.bass{font-size:66px}.grand-staff{width:100%;max-width:500px;margin:-10px auto;position:relative}.grand-staff:before{content:"";background:var(--ink);width:2px;position:absolute;top:24%;bottom:23%;left:8.5%}.grand-staff .staff-frame:first-child{margin-bottom:-61px}.game-page{background:#fffaf2;flex-direction:column;min-height:100vh;transition:background .2s;display:flex}.game-page.right{background:#f2f8f2}.game-page.wrong{background:#fff6f0}.game-top{border-bottom:1px solid var(--line);grid-template-columns:50px minmax(240px,580px) 180px;justify-content:space-between;align-items:center;gap:30px;min-height:82px;padding:16px max(25px,50vw - 610px);display:grid}.round-button{border:1px solid var(--line);background:var(--paper);cursor:pointer;width:38px;height:38px;color:var(--muted);border-radius:50%;font-size:24px}.progress-label{color:var(--muted);justify-content:space-between;margin-bottom:7px;font-size:10px;font-weight:750;display:flex}.progress-track{background:#e4ded4;border-radius:4px;height:4px;overflow:hidden}.progress-track i{background:var(--coral);height:100%;transition:width .3s;display:block}.game-status{color:var(--muted);text-transform:capitalize;justify-self:end;align-items:center;gap:7px;font-size:11px;display:flex}.game-status .icon{width:15px}.live-dot{background:#aaa;border-radius:50%;width:7px;height:7px}.live-dot.listening{background:#43a06f;box-shadow:0 0 0 4px #43a06f21}.live-dot.denied{background:var(--coral)}.game-stage{flex-direction:column;flex:1;justify-content:center;align-items:center;width:min(900px,100% - 40px);margin:0 auto;padding:36px 0 25px;display:flex}.game-prompt{text-align:center}.game-prompt h1{margin-bottom:18px;font-size:35px}.notation-card{background:var(--paper);border:1px solid var(--line);width:min(650px,100%);min-height:250px;box-shadow:var(--shadow);border-radius:12px;place-items:center;padding:35px 55px;display:grid;position:relative}.feedback-badge{border-radius:20px;align-items:center;gap:6px;padding:7px 12px;font-size:11px;font-weight:800;display:flex;position:absolute;bottom:14px}.feedback-badge .icon{width:14px}.feedback-badge.right{color:var(--green);background:#dcece1}.feedback-badge.wrong{background:var(--peach);color:var(--coral-dark)}.chord-hint{color:var(--muted);align-items:center;gap:6px;margin:17px 0 4px;font-size:11px;display:flex}.chord-hint span{border:1px solid var(--muted);border-radius:50%;width:9px;height:9px}.chord-hint span.done{background:var(--green);border-color:var(--green)}.level-meter{color:var(--muted);align-items:center;gap:8px;margin-top:20px;font-size:10px;display:flex}.level-meter .icon{width:14px}.level-meter>div{background:var(--line);border-radius:4px;width:100px;height:4px;overflow:hidden}.level-meter i{background:#4e9a78;height:100%;transition:width .1s;display:block}.keyboard-dock{border-top:1px solid var(--line);padding:12px 25px calc(16px + env(safe-area-inset-bottom));text-align:center;background:#fffdf8f5;box-shadow:0 -8px 28px #312b220d}.keyboard-dock p{margin:0 0 9px;font-size:10px}.piano-scroll{scrollbar-width:thin;scrollbar-color:#b8b0a4 transparent;overscroll-behavior-x:contain;width:min(100%,960px);margin:0 auto;padding:2px 4px 8px;overflow:auto hidden}.piano-track{background:#d9d1c6;border-top:5px solid #6f6255;border-radius:5px 5px 8px 8px;min-width:max-content;height:136px;margin:0 auto;position:relative;box-shadow:0 6px 12px #2f28201f}.piano-key{cursor:pointer;touch-action:manipulation;-webkit-user-select:none;user-select:none;flex-direction:column;justify-content:flex-end;align-items:center;padding:0 0 11px;transition:transform 80ms,background .12s,box-shadow 80ms;display:flex;position:absolute;top:0}.piano-key.white{z-index:1;width:54px;height:130px;color:var(--ink);background:linear-gradient(90deg,#ece8e1 0,#fff 12% 78%,#e7e2da 100%);border:1px solid #bdb6ac;border-top:0;border-radius:0 0 6px 6px;box-shadow:inset 0 -5px 7px #50463714,0 4px #aaa297}.piano-key.black{z-index:2;color:#ffffffc7;background:linear-gradient(90deg,#101614 0,#34413e 22%,#1b2422 72%,#080d0c 100%);border:1px solid #111917;border-top:0;border-radius:0 0 5px 5px;width:34px;height:82px;box-shadow:inset 0 -8px 8px #ffffff0a,0 5px #080b0a,0 7px 9px #00000047}.piano-key:active,.piano-key.pressed{transform:translateY(4px)}.piano-key.white:active,.piano-key.white.pressed{background:linear-gradient(90deg,#e9dfd3,#fff6eb 20%,#f8e9d8 85%);box-shadow:inset 0 -2px 5px #50463714,0 1px #aaa297}.piano-key.black:active,.piano-key.black.pressed{box-shadow:inset 0 -4px 5px #ffffff08,0 1px #080b0a}.piano-key.matched{box-shadow:inset 0 -5px #4a8e75,0 4px #8eaaa0}.piano-key.black.matched{background:linear-gradient(90deg,#14352c,#39725f 25%,#20483c 75%,#0b211b)}.piano-key.in-set:after{content:"";background:var(--coral);opacity:.7;border-radius:50%;width:4px;height:4px;position:absolute;bottom:6px}.piano-key.black.in-set:after{background:#f6a48d;bottom:5px}.piano-key span{font:16px/1 Georgia,serif}.piano-key.black span{font:10px ui-sans-serif,sans-serif}.piano-key small{color:var(--muted);margin-top:2px;font-size:8px}.piano-key.black small{color:#ffffff8c;font-size:7px}.result-page{text-align:center;background:radial-gradient(circle,#fffdf8 0,#fffaf2 55%,#f5eadb 100%);flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:50px 25px;display:flex}.result-page h1{margin-bottom:10px;font-size:58px}.result-page>p:not(.eyebrow){max-width:500px}.result-burst{background:var(--peach);width:64px;height:64px;color:var(--coral-dark);border-radius:50%;place-items:center;margin-bottom:23px;font-size:32px;display:grid}.score-ring{border:8px solid var(--coral);border-left-color:#f2c2ad;border-radius:50%;flex-direction:column;justify-content:center;width:175px;height:175px;margin:24px;display:flex;transform:rotate(-15deg)}.score-ring>*{transform:rotate(15deg)}.score-ring strong{font:50px/1 Georgia,serif}.score-ring span{color:var(--muted);font-size:11px}.result-stats{border:1px solid var(--line);border-radius:8px;grid-template-columns:repeat(3,150px);display:grid;overflow:hidden}.result-stats .stat{flex-direction:column;gap:4px;min-height:90px;padding:15px;display:flex}.result-stats .stat strong{font-size:25px}.result-stats .stat>span{color:var(--muted);font-size:10px}.result-actions{gap:10px;margin-top:26px;display:flex}.learn-layout{grid-template-columns:320px 1fr;gap:34px;display:grid}.learn-layout aside{flex-direction:column;gap:8px;display:flex}.learn-layout aside button{border:1px solid var(--line);text-align:left;cursor:pointer;background:0 0;border-radius:8px;grid-template-columns:35px 1fr 20px;align-items:center;gap:12px;min-height:82px;padding:13px;display:grid}.learn-layout aside button.active{background:var(--green);color:#fff;border-color:var(--green)}.learn-layout aside button>span{color:var(--coral);font:22px Georgia,serif}.learn-layout aside button div{flex-direction:column;gap:5px;display:flex}.learn-layout aside small{letter-spacing:1px;opacity:.7;font-size:8px}.learn-layout aside strong{font-family:Georgia,serif}.learn-layout aside .icon{width:15px}.lesson-detail{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:40px 52px 46px;position:relative}.lesson-count{color:var(--coral-dark);letter-spacing:1px;font-size:10px;font-weight:800}.teaching-staff{background:#f4e8d7;border-radius:8px;margin:20px 0 32px;padding:5px 60px}.lesson-detail>small{letter-spacing:1.5px;font-weight:800}.lesson-detail h2{margin:7px 0 13px;font-size:40px}.lesson-detail>p{max-width:720px;font-size:16px}.lesson-tip{border-left:3px solid var(--ochre);background:#fbf3dd;flex-direction:column;gap:4px;margin:25px 0;padding:15px 18px;display:flex}.lesson-tip span{color:var(--muted);font-size:13px}.settings-page{max-width:950px}.settings-list{gap:10px;display:grid}.settings-list section{border:1px solid var(--line);background:var(--paper);border-radius:9px;align-items:center;gap:17px;min-height:105px;padding:20px 23px;display:flex}.settings-icon{background:var(--peach);width:42px;height:42px;color:var(--coral-dark);border-radius:50%;place-items:center;display:grid}.settings-list section>div:nth-child(2){flex:1}.settings-list h2{margin:0 0 5px;font-family:inherit;font-size:15px}.settings-list p{margin:0;font-size:12px}.status-pill{color:var(--muted);text-transform:uppercase;background:#eee9e0;border-radius:20px;padding:5px 9px;font-size:9px;font-weight:800}.status-pill.ready{color:var(--green);background:#dcece1}.backup-actions{gap:8px;display:flex}.backup-actions .secondary{font-size:11px}.toggle{width:48px;height:27px;position:relative}.toggle input{opacity:0;position:absolute}.toggle span{cursor:pointer;background:#cec8bf;border-radius:20px;height:100%;display:block}.toggle span:after{content:"";background:#fff;border-radius:50%;width:21px;height:21px;transition:all .2s;position:absolute;top:3px;left:3px;box-shadow:0 2px 5px #7774}.toggle input:checked+span{background:var(--green)}.toggle input:checked+span:after{transform:translate(21px)}.local-note{background:#eef3ed;border-radius:9px;align-items:center;gap:15px;margin-top:28px;padding:22px;display:flex}.local-note .logo-mark{flex:none}.local-note div:last-child{flex-direction:column;gap:4px;display:flex}.local-note span{color:var(--muted);font-size:12px;line-height:1.5}.toast{background:var(--green);color:#fff;box-shadow:var(--shadow);border-radius:6px;align-items:center;gap:7px;padding:12px 18px;font-size:12px;display:flex;position:fixed;bottom:30px;left:50%;transform:translate(-50%)}.toast .icon{width:15px}.modal-backdrop{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:50;background:#14232099;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.calibration-modal{background:var(--paper);text-align:center;border-radius:14px;width:min(460px,100%);padding:32px 38px;position:relative;box-shadow:0 30px 100px #00000040}.modal-close{color:var(--muted);cursor:pointer;background:0 0;border:0;font-size:25px;position:absolute;top:13px;right:17px}.calibration-art{place-items:center;height:100px;display:grid}.piano-c{background:linear-gradient(#fff,#ede8df);border:1px solid #bdb5aa;border-radius:3px 3px 7px 7px;justify-content:center;align-items:end;width:60px;height:93px;padding:12px;display:flex;box-shadow:0 5px #b7afa4}.piano-c span{color:var(--coral-dark);font:20px Georgia,serif}.calibration-modal h2{margin:7px 0 9px;font-size:36px}.calibration-modal>p:not(.eyebrow){font-size:13px}.calibration-level{margin:24px 0 20px}.calibration-level>div{background:var(--line);border-radius:5px;height:7px;margin-bottom:9px;overflow:hidden}.calibration-level i{background:linear-gradient(90deg, var(--ochre), var(--coral));height:100%;transition:width .1s;display:block}.calibration-level strong{font-size:12px}.calibration-modal .text-button{margin:8px auto}.calibration-modal>small{color:var(--muted);font-size:9px;display:block}@media (max-width:820px){body{padding-bottom:70px}.app-header{height:64px;padding:0 18px}.desktop-nav{display:none}.brand{font-size:20px}.logo-mark,.avatar{width:34px;height:34px}.bottom-nav{height:calc(64px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);border-top:1px solid var(--line);z-index:30;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#fffdf8f5;grid-template-columns:repeat(4,1fr);display:grid;position:fixed;bottom:0;left:0;right:0}.bottom-nav button{color:var(--muted);background:0 0;border:0;flex-direction:column;justify-content:center;align-items:center;gap:3px;font-size:9px;display:flex}.bottom-nav button.active{color:var(--coral-dark);font-weight:800}.bottom-nav .icon{width:20px;height:20px}.page{padding:38px 18px 40px}.welcome-row{align-items:start}.welcome-row h1{font-size:42px}.week-chip{flex:none;width:54px;height:64px}.quick-card{grid-template-columns:1fr}.quick-copy{padding:31px 26px}.quick-copy h2{font-size:29px}.staff-preview{min-height:215px;padding:15px 32px}.stats-grid{grid-template-columns:1fr;margin-bottom:55px}.stat{min-height:90px}.lesson-strip{scroll-snap-type:x mandatory;padding-bottom:10px;display:flex;overflow-x:auto}.lesson-card{scroll-snap-align:start;flex:0 0 82%}.section-title{align-items:start}.section-title .text-button{display:none}.page-heading{margin-bottom:33px}.page-heading h1{font-size:39px}.setup-layout{grid-template-columns:1fr;gap:26px}.setup-main{gap:38px}.setup-block{padding-bottom:37px}.setup-aside{position:static}.clef-options b{font-size:27px}.clef-options span{font-size:11px}.input-options,.learn-layout{grid-template-columns:1fr}.learn-layout aside{flex-direction:row;overflow-x:auto}.learn-layout aside button{flex:0 0 230px}.lesson-detail{padding:28px 22px}.teaching-staff{padding:4px 12px}.lesson-detail h2{font-size:34px}.settings-list section{flex-wrap:wrap;align-items:flex-start}.settings-icon{flex:none}.settings-list section>div:nth-child(2){min-width:calc(100% - 70px)}.settings-list section .secondary,.backup-actions,.status-pill{margin-left:58px}.backup-actions{flex-wrap:wrap}.game-page{min-height:calc(100vh + 70px)}.game-top{grid-template-columns:40px 1fr;gap:13px;padding:12px 15px}.game-status{display:none}.game-stage{padding:25px 0 18px}.game-prompt h1{font-size:28px}.notation-card{min-height:210px;padding:23px 22px}.grand-staff .staff-frame:first-child{margin-bottom:-43px}.keyboard-dock{padding-left:7px;padding-right:7px}.piano-scroll{width:100%}.result-page{min-height:calc(100vh - 70px)}.result-page h1{font-size:44px}.result-stats{grid-template-columns:repeat(3,1fr);width:100%;max-width:450px}.result-actions{flex-direction:column;width:min(300px,100%)}.result-actions>*{width:100%}}@media (max-width:470px){.welcome-row p:last-child{max-width:280px}.week-chip{display:none}.quick-actions{flex-direction:column;align-items:flex-start;gap:7px}.quick-actions .primary{width:100%}.lesson-card{flex-basis:92%}.clef-options button{min-height:96px}.clef-options small{display:none}.note-chips{grid-template-columns:repeat(5,1fr)}.settings-list section .secondary,.settings-list section .backup-actions,.settings-list section .status-pill{margin-left:0}.calibration-modal{padding:27px 22px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important}}