@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;600;700;800&display=swap');
:root{--ink:#213e37;--muted:#6e7b71;--green:#326957;--cream:#f6f5ed;--line:#e0e5da}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font:15px 'DM Sans',sans-serif}button,select,textarea{font:inherit}button{cursor:pointer;border:1px solid var(--line);background:#fff;border-radius:9px;padding:10px 15px;color:var(--ink)}button:hover{filter:brightness(.96)}button:focus-visible,a:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #d99b41;outline-offset:3px}header{max-width:1240px;margin:auto;padding:28px 36px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{font:800 25px Manrope,sans-serif;color:var(--ink);text-decoration:none}.brand span{display:block;font:12px 'DM Sans';margin:3px 0 0 28px;color:var(--muted)}nav{display:flex;gap:12px}nav button{background:transparent;border:0;font-size:13px}main{max-width:1240px;margin:auto;padding:0 36px}.intro{padding:53px 0 40px;position:relative}.intro:after{content:'♪';position:absolute;right:70px;top:35px;font-size:180px;color:#dce4ce;transform:rotate(-13deg)}.eyebrow,.section-label{font-size:10px;letter-spacing:1.8px;font-weight:700}.eyebrow{color:#69846c}h1{font:600 49px/1.12 Manrope,sans-serif;letter-spacing:-2px;margin:15px 0}p{line-height:1.65;color:var(--muted)}.intro p{font-size:16px}.chips{display:flex;gap:25px;font-size:12px;margin-top:24px;color:#657666}.layout{display:grid;grid-template-columns:280px 1fr;gap:30px}.section-label{display:flex;justify-content:space-between}.section-label span{letter-spacing:0}.lesson-card{display:flex;text-align:left;width:100%;gap:13px;background:transparent;border:0;margin-top:10px;padding:19px 15px;border-radius:12px}.lesson-card.active{background:#e5ebdc}.lesson-card .number{background:#e9ece3;width:32px;height:32px;display:grid;place-items:center;border-radius:50%;flex-shrink:0}.lesson-card.active .number{background:var(--green);color:#fff}.lesson-card strong{display:block;font-size:14px}.lesson-card small{display:block;color:var(--muted);font-size:12px;margin-top:5px}.aside-note{margin:30px 10px;padding-top:25px;border-top:1px solid var(--line)}.aside-note>span{font-size:32px;color:#8a9b6b}.aside-note h3{font-size:15px}.aside-note p{font-size:13px}.studio{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:0 10px 30px #233e3705}.lesson-top{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);letter-spacing:1px}h2{font:700 29px Manrope;margin:15px 0 6px;letter-spacing:-1px}.studio>p{margin-top:0;font-size:14px}.steps{display:flex;gap:8px;margin:25px 0 19px}.steps button{flex:1;background:#f6f7f2;border:0;font-size:12px}.steps button.selected{background:var(--green);color:#fff}.coach{display:flex;gap:15px;align-items:start;min-height:110px}.coach>span{font:600 25px Manrope;color:#a8b59a}.coach h3{margin:0;font-size:16px}.coach p{margin:6px 0;font-size:14px}.demo{background:#f5f6ef;border-radius:12px;padding:20px;display:flex;align-items:center;justify-content:space-between;gap:10px}.demo p{margin:10px 0 0;color:var(--ink);font-size:18px;letter-spacing:2px}.play-controls{display:flex;gap:6px}.primary{background:var(--green);color:#fff;border-color:var(--green)}.settings{display:flex;justify-content:space-between;gap:15px;align-items:center;font-size:12px;margin:18px 0;color:var(--muted)}select{border:1px solid var(--line);padding:6px;background:white;border-radius:5px;margin-left:5px;color:var(--ink)}.keyboard-wrap{overflow:auto}.keyboard{position:relative;display:flex;height:155px;min-width:450px;padding:5px 5px 0;background:#263a33;border-radius:9px 9px 5px 5px}.key{position:relative;flex:1;border:1px solid #d8dacf;border-bottom:5px solid #dedfd7;background:#fffef9;border-radius:0 0 5px 5px;display:flex;align-items:end;justify-content:center;padding:12px 0;color:#9ba397;user-select:none;touch-action:none}.key.black{position:absolute;top:5px;width:7.6%;height:93px;background:#26332e;border:1px solid #15241f;border-bottom:6px solid #101f19;color:#d3dbd0;z-index:2;font-size:10px;padding-bottom:8px}.key.playing{background:#d9e5aa;color:#25432f}.key.black.playing{background:#8eaa61}.keyboard-caption{display:flex;justify-content:space-between;gap:10px;font-size:10px;color:var(--muted);margin-top:10px}.tip{display:flex;gap:20px;align-items:baseline;background:#fff7e5;border-radius:10px;padding:13px 17px;margin-top:24px;font-size:12px}.tip strong{white-space:nowrap;color:#92743d}.tip p{margin:0;color:#89774e}.reflection{margin-top:23px}.reflection label{font-weight:600;font-size:13px;display:block}.reflection textarea{width:100%;border:1px solid var(--line);border-radius:8px;resize:vertical;padding:10px;min-height:60px;margin-top:9px;font-size:12px}.reflection small{color:var(--muted);font-size:10px}footer{display:flex;justify-content:space-between;align-items:center;margin-top:20px}footer span{font-size:12px;color:var(--green)}.bottom{display:flex;justify-content:space-between;font-size:9px;letter-spacing:1.6px;color:#899780;padding:35px 0 45px}@media(max-width:850px){.layout{grid-template-columns:1fr}#lessonList{display:grid;grid-template-columns:1fr 1fr}.aside-note{display:none}.intro:after{right:0;opacity:.5}h1{font-size:40px}.studio{padding:20px}}@media(max-width:550px){header{padding:20px}main{padding:0 18px}nav button{padding:5px;font-size:11px}.intro{padding-top:32px}.intro:after{display:none}h1{font-size:34px}.chips{gap:12px;font-size:10px}.demo{display:block}.play-controls{margin-top:15px}.settings{align-items:start;flex-direction:column}.bottom{flex-wrap:wrap;gap:15px}.lesson-card{padding:12px 8px}.studio{padding:16px}.keyboard-caption{flex-direction:column}.tip{display:block}.tip p{margin-top:6px}.steps button{padding:10px 6px}.desktop{display:none}}

.chord-library{margin:24px 0;padding:18px;border:1px solid var(--line);border-radius:12px}.chord-library p{font-size:12px;margin:10px 0}.chord-library button{font-size:12px;padding:8px 12px}#chordButtons{display:flex;flex-wrap:wrap;gap:6px}#chordButtons [aria-pressed=true]{background:var(--green);color:white}.key.shape{background:#cce0aa;border-bottom-color:#9fb77c}.key.black.shape{background:#6a8e50}.keyboard{min-width:660px}.key{font-size:11px}.lesson-card{padding:13px 12px}.studio{align-self:start}#lessonList{max-height:680px;overflow:auto}.lesson-card.active{border-left:3px solid var(--green)}@media(max-width:850px){#lessonList{max-height:245px}}

[hidden]{display:none!important}.intro{padding:28px 0 22px}.intro h1{font-size:32px;letter-spacing:-1px}.intro h1 br{display:none}.intro:after,.chips,.bottom,.aside-note{display:none}.intro p{font-size:14px;margin-bottom:0}.main-tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:24px;padding-bottom:10px}.main-tabs button{border:0;background:transparent;padding:11px 24px;font-weight:600}.main-tabs [aria-selected=true]{background:var(--green);color:white}.layout{grid-template-columns:220px 1fr;gap:24px}.studio{padding:26px}.lesson-chooser{display:block;font-size:12px;margin-top:18px}.lesson-chooser select{display:block;width:100%;margin:9px 0 0;padding:10px}#lessonList{display:none}.chord-panel{max-width:950px;margin:0 auto 35px}.chord-library{margin:22px 0;border:0;padding:0}.chord-library>.section-label,.chord-library>p:first-of-type{display:none}.finger-controls{padding:10px 0 14px}.finger-controls>label{font-size:12px;font-weight:600}.finger-controls p{font-size:11px;margin:8px 0;color:var(--muted)}#fingerLegend{display:flex;gap:7px;flex-wrap:wrap;margin:10px 0 0}#fingerLegend span{background:var(--finger);color:#243e35;padding:5px 9px;border-radius:6px;font-size:10px}.key.finger-colour{background:var(--finger);color:#233e35}.key.playing{box-shadow:inset 0 0 0 3px #326957}.finger-badge{position:absolute;bottom:32px;left:0;right:0;font-weight:700;font-size:12px}.key.black .finger-badge{bottom:12px}.key.shape{box-shadow:inset 0 0 0 3px #326957}.practice-notes{border-top:1px solid var(--line);margin-top:22px;padding-top:16px}.practice-notes summary{font-size:12px;cursor:pointer;color:var(--muted)}.practice-notes .reflection{margin-top:12px}.demo .section-label{display:none}.demo p{margin:0;font-size:14px;letter-spacing:1px}.coach{min-height:95px}.tip{margin-top:16px}header{padding-top:20px;padding-bottom:20px}@media(max-width:850px){.layout{grid-template-columns:1fr}.lesson-chooser{margin-top:8px}.intro h1{font-size:28px}.studio{padding:18px}}@media(max-width:550px){.intro h1{font-size:25px}.intro p{font-size:12px}.main-tabs button{padding:10px 18px}.demo p{font-size:12px;overflow-wrap:anywhere}}