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var(--line);background:var(--coral);flex-direction:column;padding:32px;display:flex}.repertoire-card>strong{letter-spacing:-.04em;margin-top:20px;font-size:clamp(25px,3vw,38px);line-height:1.12}.repertoire-card>div{border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-family:var(--font-geist-mono), monospace;justify-content:space-between;align-items:center;margin-top:auto;padding:16px 0;font-size:10px;display:flex}.repertoire-card b{font-size:16px}.repertoire-card small{margin-top:16px;font-size:10px;line-height:1.5}.practice-section{background:var(--ink);color:var(--paper);border-bottom:2px solid var(--line)}.section-heading.inverted .section-index{color:var(--lime)}.week-stamp{color:var(--white);font-family:var(--font-geist-mono), monospace;border:1px solid #6e6c65;justify-self:end;padding:14px 18px;font-size:22px;font-weight:900}.week-stamp span{color:#97958d;margin-bottom:4px;font-size:9px;display:block}.day-tabs{border-top:1px solid #55534e;border-left:1px solid #55534e;grid-template-columns:repeat(5,1fr);display:grid}.day-tabs button{color:#a8a69e;cursor:pointer;text-align:left;background:0 0;border:1px solid #55534e;border-top:0;border-left:0;align-items:center;gap:10px;min-height:86px;padding:14px;font-size:10px;font-weight:750;line-height:1.35;display:flex}.day-tabs button:hover,.day-tabs button.is-active{background:var(--paper);color:var(--ink)}.day-check{width:29px;height:29px;font-family:var(--font-geist-mono), monospace;border:1px solid;flex:none;place-items:center;display:grid}.day-check.is-complete{background:var(--lime);color:var(--ink)}.lesson-guide{border:2px solid var(--line);background:var(--paper);color:var(--ink);box-shadow:8px 8px 0 var(--blue);margin-top:22px}.lesson-guide-head{border-bottom:2px solid var(--line);grid-template-columns:1fr auto;align-items:start;gap:30px;padding:clamp(24px,4vw,42px);display:grid}.lesson-guide-head>div>span,.lesson-level span,.guide-column-label,.visual-card-label span{font-family:var(--font-geist-mono), monospace;letter-spacing:.12em;font-size:9px;font-weight:900}.lesson-guide-head>div>span{color:var(--blue)}.lesson-guide h3{letter-spacing:-.045em;max-width:950px;margin:12px 0 10px;font-size:clamp(28px,4vw,48px);line-height:1.08}.lesson-guide-head p{max-width:900px;color:var(--muted);margin:0;font-size:14px;line-height:1.75}.lesson-level{border:2px solid var(--line);background:var(--lime);gap:5px;min-width:115px;padding:12px;display:grid}.lesson-level strong{font-size:13px}.lesson-visual-grid{border-bottom:2px solid var(--line);grid-template-columns:1.35fr .65fr;display:grid}.piano-map-card,.finger-map-card{padding:26px}.piano-map-card{border-right:2px solid var(--line)}.visual-card-label{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.visual-card-label span{color:var(--muted)}.visual-card-label strong{font-size:13px}.piano-map-card>p,.finger-map-card>p{color:var(--muted);margin:15px 0 0;font-size:10px;line-height:1.6}.learning-piano{border:2px solid var(--line);background:var(--ink);height:170px;position:relative;overflow:hidden}.learning-white-keys{grid-template-columns:repeat(14,1fr);height:100%;display:grid}.learning-white-keys>span{border-right:1px solid var(--line);background:var(--white);position:relative}.learning-white-keys>span:last-child{border-right:0}.learning-white-keys>span.is-target{background:var(--yellow)}.learning-white-keys b{font-family:var(--font-geist-mono), monospace;text-align:center;font-size:9px;position:absolute;bottom:10px;left:0;right:0}.learning-white-keys>span.is-target b{border:1px solid var(--line);background:var(--coral);place-items:center;width:25px;height:25px;margin:auto;display:grid;bottom:8px}.learning-black-keys{pointer-events:none;height:61%;position:absolute;inset:0}.learning-black-keys span{background:var(--ink);width:4.4%;height:100%;position:absolute;top:0;transform:translate(-50%);box-shadow:2px 2px #0000004d}.finger-guides{gap:16px;display:grid}.finger-hand{border:2px solid var(--line);padding:13px}.finger-hand>span{font-size:10px;font-weight:850}.finger-hand>div{grid-template-columns:repeat(5,1fr);align-items:end;gap:5px;height:62px;margin:11px 0;display:grid}.finger-hand b{border:2px solid var(--line);background:var(--paper-2);height:42px;font-family:var(--font-geist-mono), monospace;border-radius:18px 18px 8px 8px;place-items:center;font-size:11px;display:grid}.finger-hand b:nth-child(3){height:60px}.finger-hand b:nth-child(2),.finger-hand b:nth-child(4){height:52px}.finger-hand b.is-used{background:var(--blue);color:var(--white)}.finger-hand small{color:var(--muted);font-size:9px}.chord-recipe-row{border-bottom:2px solid var(--line);grid-template-columns:repeat(3,1fr);display:grid}.chord-recipe{border-right:2px solid var(--line);grid-template-columns:74px 1fr;min-height:118px;display:grid}.chord-recipe:last-child{border-right:0}.recipe-chord{border-right:2px solid var(--line);background:var(--coral);font-family:var(--font-geist-mono), monospace;place-items:center;font-size:31px;font-weight:900;display:grid}.chord-recipe>div{align-content:center;gap:5px;padding:14px;display:grid}.chord-recipe strong{font-size:12px}.chord-recipe small{color:var(--muted);font-size:9px}.step-by-step{grid-template-columns:1.3fr .7fr;display:grid}.step-list,.term-list{padding:clamp(24px,4vw,40px)}.step-list{border-right:2px solid var(--line)}.guide-column-label{color:var(--blue);margin-bottom:20px;display:block}.guide-step{border-top:1px solid #bbb7aa;grid-template-columns:45px 1fr;gap:14px;padding:18px 0;display:grid}.guide-step>span{color:var(--coral);font-family:var(--font-geist-mono), monospace;font-size:15px;font-weight:900}.guide-step>div{gap:5px;display:grid}.guide-step strong{font-size:14px}.guide-step p,.term-list p{color:var(--muted);margin:0;font-size:11px;line-height:1.65}.term-list{background:var(--yellow)}.term-list>div{border-top:1px solid var(--line);gap:4px;padding:14px 0;display:grid}.term-list strong{font-family:var(--font-geist-mono), monospace;font-size:12px}.term-list>small{border:1px solid var(--line);background:var(--paper-2);margin-top:15px;padding:12px;font-size:9px;line-height:1.55;display:block}.session-layout{grid-template-columns:1.4fr minmax(300px,.6fr);gap:22px;margin-top:22px;display:grid}.session-list{gap:10px;display:grid}.session-list-toolbar{min-height:62px;color:var(--paper);border:1px solid #5d5b54;justify-content:space-between;align-items:center;gap:18px;padding:12px 15px;display:flex}.session-list-toolbar>div{gap:3px;display:grid}.session-list-toolbar span{color:var(--lime);font-family:var(--font-geist-mono), monospace;letter-spacing:.08em;font-size:9px;font-weight:900}.session-list-toolbar strong{color:#9f9d95;font-size:10px;font-weight:500}.session-list-toolbar button{min-height:36px;color:var(--paper);cursor:pointer;background:0 0;border:1px solid #77746d;flex:none;padding:0 12px;font-size:9px;font-weight:800}.session-block-shell{border:2px solid #0000}.session-block-shell.is-expanded{border-color:var(--lime)}.session-block{background:var(--paper);min-height:106px;color:var(--ink);text-align:left;grid-template-columns:48px 78px 1fr 138px;align-items:center;padding:0;display:grid}.session-block.is-done{opacity:.62}.session-block.is-done .block-copy{text-decoration:line-through;text-decoration-thickness:1px}.block-complete-button{border:0;border-right:2px solid var(--line);background:var(--paper);cursor:pointer;place-items:center;width:100%;height:100%;min-height:106px;font-size:25px;font-weight:900;display:grid}.block-complete-button[aria-pressed=true]{background:var(--lime)}.block-time{border-right:2px solid var(--line);height:100%;font-family:var(--font-geist-mono), monospace;text-align:center;place-content:center;font-size:9px;font-weight:700;display:grid}.block-time strong{font-size:27px;line-height:1}.block-copy{gap:7px;padding:18px 22px;display:grid}.block-copy strong{font-size:18px}.block-copy small{color:var(--muted);font-size:12px;line-height:1.55}.block-expand-button{border:0;border-left:2px solid var(--line);background:var(--paper-2);cursor:pointer;justify-content:space-between;align-items:center;gap:8px;height:100%;min-height:106px;padding:0 15px;font-size:10px;font-weight:850;display:flex}.block-expand-button:hover,.block-expand-button[aria-expanded=true]{background:var(--yellow)}.block-expand-button span{font-family:var(--font-geist-mono), monospace;font-size:22px}.tone-lime .block-time{background:var(--lime)}.tone-coral .block-time{background:var(--coral)}.tone-blue .block-time{background:var(--blue);color:var(--white)}.tone-yellow .block-time{background:var(--yellow)}.practice-detail-panel{border-top:2px solid var(--line);background:var(--paper-2);color:var(--ink);grid-template-columns:minmax(260px,.7fr) minmax(0,1.3fr);display:grid}.practice-demo-column,.practice-instruction-column{padding:clamp(20px,3vw,32px)}.practice-demo-column{border-right:2px solid var(--line);background:var(--yellow)}.detail-label,.detail-goal>span{font-family:var(--font-geist-mono), monospace;letter-spacing:.1em;text-transform:uppercase;font-size:8px;font-weight:900}.practice-animation{border:2px solid var(--line);background:var(--paper-2);min-height:230px;margin-top:14px;position:relative;overflow:hidden}.animation-help{color:#57554f;margin:13px 0 0;font-size:10px;line-height:1.6}.start-block-timer{border:2px solid var(--line);background:var(--lime);width:100%;min-height:48px;box-shadow:4px 4px 0 var(--ink);cursor:pointer;justify-content:space-between;align-items:center;margin-top:15px;padding:0 15px;font-size:11px;font-weight:850;display:flex}.posture-animation{grid-template-columns:.7fr 1.3fr;align-items:center;padding:18px;display:grid}.breath-ring{border:3px solid var(--blue);width:100px;height:100px;color:var(--blue);border-radius:50%;place-items:center;font-size:10px;font-weight:850;animation:4s ease-in-out infinite breathing;display:grid}.posture-figure{height:150px;position:relative}.figure-head{border:3px solid var(--line);background:var(--coral);border-radius:50%;width:31px;height:31px;position:absolute;top:8px;left:22%}.figure-back{background:var(--line);transform-origin:top;width:4px;height:76px;animation:3s ease-in-out infinite posture-straighten;position:absolute;top:40px;left:calc(22% + 14px);transform:rotate(-4deg)}.figure-arm{background:var(--line);transform-origin:0;width:42%;height:4px;position:absolute;top:59px;left:24%;transform:rotate(8deg)}.figure-bench{background:var(--blue);width:38%;height:8px;position:absolute;bottom:22px;left:7%}.figure-piano{border:3px solid var(--line);background:var(--ink);width:35%;height:42px;position:absolute;top:69px;right:3%}.animation-cues{grid-template-columns:repeat(3,1fr);gap:5px;display:grid;position:absolute;bottom:10px;left:12px;right:12px}.animation-cues span{border:1px solid var(--line);background:var(--lime);text-align:center;padding:5px;font-size:7px;font-weight:800}.rhythm-animation{align-content:center;gap:20px;padding:24px;display:grid}.beat-demo{grid-template-columns:repeat(4,1fr);gap:9px;display:grid}.beat-demo span{aspect-ratio:1;border:2px solid var(--line);background:var(--paper);font-family:var(--font-geist-mono), monospace;place-items:center;font-size:22px;font-weight:900;animation:2.4s step-end infinite beat-count;display:grid}.count-rail{border:2px solid var(--line);height:9px;position:relative}.count-rail span{background:var(--coral);width:25%;height:9px;animation:2.4s linear infinite count-rail;position:absolute;top:-2px;left:-2px}.rhythm-animation>strong,.technique-animation>strong{text-align:center;font-size:10px}.technique-animation{align-content:center;gap:16px;padding:20px;display:grid}.animated-chords{grid-template-columns:repeat(4,1fr);gap:5px;display:grid}.animated-chords span{border:2px solid var(--line);background:var(--paper);min-height:42px;font-family:var(--font-geist-mono), monospace;place-items:center;font-weight:900;animation:3.6s step-end infinite chord-cycle;display:grid}.mini-keyboard{border:2px solid var(--line);grid-template-columns:repeat(7,1fr);height:100px;display:grid}.mini-keyboard>span{border-right:1px solid var(--line);background:var(--white);position:relative}.mini-keyboard>span:last-child{border-right:0}.mini-keyboard>span.is-chord-note{animation:3.6s ease-in-out infinite chord-key}.mini-keyboard b{text-align:center;font-size:8px;position:absolute;bottom:5px;left:0;right:0}.mini-keyboard i{background:var(--blue);width:24px;height:24px;color:var(--white);font-family:var(--font-geist-mono), monospace;border-radius:50%;place-items:center;font-size:9px;font-style:normal;font-weight:900;animation:3.6s ease-in-out infinite finger-press;display:grid;position:absolute;top:12px;left:50%;transform:translate(-50%)}.reading-animation{padding:18px}.mini-staff{height:150px;margin-top:15px;position:relative;overflow:hidden}.mini-staff-line{background:var(--line);height:1px;position:absolute;left:0;right:0}.moving-note{z-index:2;background:var(--ink);border-radius:50%;width:21px;height:14px;animation:3.2s linear infinite read-note;position:absolute;left:12%}.moving-note:after{background:var(--ink);content:"";width:2px;height:38px;position:absolute;bottom:5px;right:0}.moving-note.note-0{top:77px}.moving-note.note-1{top:49px}.moving-note.note-2{top:63px}.reading-eye{border:1px solid var(--line);background:var(--lime);padding:5px 8px;font-size:8px;font-style:normal;font-weight:850;position:absolute;bottom:8px;right:8px}.song-animation{align-content:center;gap:13px;padding:20px;display:grid}.bar-timeline{border:2px solid var(--line);grid-template-columns:repeat(4,1fr);min-height:132px;display:grid;position:relative;overflow:hidden}.bar-timeline>span{border-right:1px solid var(--line);text-align:center;align-content:center;gap:8px;padding:8px;display:grid}.bar-timeline>span:last-of-type{border-right:0}.bar-timeline small,.bar-timeline i{color:var(--muted);font-family:var(--font-geist-mono), monospace;font-size:6px;font-style:normal}.bar-timeline strong{font-family:var(--font-geist-mono), monospace;font-size:19px}.song-playhead{background:var(--coral);width:4px;animation:5s linear infinite song-playhead;position:absolute;top:0;bottom:0;left:0;box-shadow:4px 0 #ff6f5e40}.song-animation>p{color:var(--muted);text-align:center;margin:0;font-size:8px}.recall-animation{align-content:center;gap:20px;padding:20px;display:grid}.recall-cards,.review-days{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.recall-cards span{border:2px solid var(--line);background:var(--paper);text-align:center;place-content:center;gap:7px;min-height:90px;font-size:12px;font-weight:850;animation:3s step-end infinite recall-card;display:grid}.recall-cards b{color:var(--blue);font-family:var(--font-geist-mono), monospace;font-size:8px}.review-days span{border-top:3px solid var(--coral);font-family:var(--font-geist-mono), monospace;text-align:center;padding-top:6px;font-size:6px}.practice-instruction-column{align-content:start;gap:24px;display:grid}.detail-goal{border:2px solid var(--line);background:var(--lime);gap:8px;padding:15px;display:grid}.detail-goal strong{font-size:13px;line-height:1.55}.detail-prepare ul{gap:7px;margin:12px 0 0;padding:0;list-style:none;display:grid}.detail-prepare li{color:var(--muted);padding-left:20px;font-size:10px;line-height:1.55;position:relative}.detail-prepare li:before{border:1px solid var(--line);background:var(--yellow);content:"";width:9px;height:9px;position:absolute;top:5px;left:0}.minute-timeline{display:grid}.minute-timeline>.detail-label{margin-bottom:11px}.minute-timeline>div{border-top:1px solid #bbb7aa;grid-template-columns:78px 1fr;gap:12px;padding:11px 0;display:grid}.minute-timeline time{color:var(--blue);font-family:var(--font-geist-mono), monospace;font-size:9px;font-weight:900}.minute-timeline>div>span{gap:4px;display:grid}.minute-timeline strong{font-size:11px}.minute-timeline small{color:var(--muted);font-size:9px;line-height:1.55}.detail-checks{border:2px solid var(--line);grid-template-columns:1fr 1fr;display:grid}.detail-checks>div{padding:13px}.detail-checks>div:first-child{border-right:2px solid var(--line);background:var(--lime)}.detail-checks>div:last-child{background:var(--coral)}.detail-checks span{font-family:var(--font-geist-mono), monospace;font-size:8px;font-weight:900}.detail-checks p{margin:7px 0 0;font-size:9px;line-height:1.55}@keyframes breathing{0%,to{transform:scale(.78)}50%{transform:scale(1)}}@keyframes posture-straighten{0%,to{transform:rotate(7deg)}45%,75%{transform:rotate(-4deg)}}@keyframes beat-count{0%,24.9%{background:var(--coral);transform:translateY(-6px)}25%,to{background:var(--paper);transform:translateY(0)}}@keyframes count-rail{0%{transform:translate(0)}to{transform:translate(300%)}}@keyframes chord-cycle{0%,24.9%{background:var(--lime);transform:translateY(-4px)}25%,to{background:var(--paper);transform:translateY(0)}}@keyframes chord-key{0%,12%,70%,to{background:var(--white)}22%,58%{background:var(--coral)}}@keyframes finger-press{0%,12%,70%,to{transform:translate(-50%,-8px)}22%,58%{transform:translate(-50%,8px)}}@keyframes read-note{0%{opacity:0;transform:translate(0)}12%{opacity:1}85%{opacity:1}to{opacity:0;transform:translate(185px)}}@keyframes song-playhead{0%{left:0}to{left:calc(100% - 4px)}}@keyframes recall-card{0%,24.9%{background:var(--blue);color:var(--white);transform:translateY(-5px)}25%,to{background:var(--paper);color:var(--ink);transform:translateY(0)}}.practice-console{align-content:start;gap:14px;height:fit-content;display:grid;position:sticky;top:98px}.timer-card,.metronome-card{background:#22221f;border:1px solid #5d5b54;padding:24px}.timer-card>span,.console-label span{color:#99978f;font-family:var(--font-geist-mono), monospace;letter-spacing:.1em;font-size:9px;font-weight:800}.timer-card>strong{font-family:var(--font-geist-mono), monospace;letter-spacing:-.07em;margin:14px 0 18px;font-size:clamp(47px,6vw,72px);line-height:1;display:block}.timer-actions{grid-template-columns:1fr auto auto;gap:8px;display:grid}.timer-actions 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