.rhythm-page{--ink:#102f3d;--river:#4a9db4;--foam:#b9dde1;--fern:#4f683d;--sand:#f9f7f1;--clay:#d98660;background:var(--sand);min-height:100vh;color:var(--ink)}.rhythm-page *{box-sizing:border-box}.rhythm-nav{justify-content:space-between;align-items:center;width:min(1220px,100% - 42px);margin:auto;padding:22px 0;display:flex}.rhythm-brand{align-items:center;gap:12px;font-family:Georgia,Times New Roman,serif;font-size:18px;font-weight:700;display:flex}.rhythm-brand img{object-fit:cover;object-position:50% 44%;mix-blend-mode:multiply;width:55px;height:42px}.rhythm-brand small{letter-spacing:.13em;text-transform:uppercase;margin-top:3px;font-family:Arial,sans-serif;font-size:9px;font-weight:700;display:block}.rhythm-back{letter-spacing:.07em;text-transform:uppercase;border-bottom:1px solid #42616a;padding-bottom:3px;font-size:11px;font-weight:700}.rhythm-hero{width:min(1220px,100% - 42px);margin:60px auto 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p:not(.rhythm-kicker){color:#657570;margin:0;font-size:13px}.symbol-key b{color:#1a8377;text-align:center;width:19px;margin-right:8px;font-size:18px;display:inline-block}.reset-button{color:#3c5650;cursor:pointer;background:0 0;border:0;border-bottom:1px solid #58716a;margin-top:24px;padding:0 0 3px;font-family:Arial,sans-serif;font-size:13px}.tip{color:#7b8580;margin:20px 0 0;font-size:12px;line-height:1.5}.rhythm-page button:focus-visible,.rhythm-page input:focus-visible,.rhythm-page a:focus-visible{outline-offset:3px;outline:3px solid #dc9b75}@media (width<=900px){.audio-output{grid-template-columns:minmax(0,1fr) minmax(180px,.55fr)}.audio-output>button{grid-column:1/-1}.rhythm-workspace{grid-template-columns:1fr}.rhythm-controls{position:static}.play-button,.stop-button{width:calc(50% - 5px)}.stop-button{margin-left:10px}}@media (width<=600px){.audio-output{grid-template-columns:1fr;gap:16px}.audio-output>button{grid-column:auto}.rhythm-nav,.rhythm-hero,.rhythm-workspace{width:calc(100% - 32px)}.rhythm-nav{padding:18px 0}.rhythm-brand span{font-size:14px}.rhythm-back{font-size:9px}.rhythm-hero{margin:45px auto 40px}.rhythm-hero h1{font-size:62px}.measure-card,.pattern-card{padding:20px 16px}.pattern-heading{flex-direction:column;align-items:start;margin-bottom:19px}.pattern-heading h2{font-size:27px}.grid-head,.grid-row{grid-template-columns:100px repeat(4,minmax(31px,1fr));gap:5px}.instrument-label{font-size:12px}.drum-step{border-radius:6px}.drum-pads{gap:8px}.drum-pad{min-height:106px;padding:10px 4px}.drum-pad>span{font-size:30px}.drum-pad kbd{display:none}.rhythm-workspace{padding-bottom:55px}}.notation-card{background:#fffefa;border:1px solid #d4d9d1;padding:29px}.notation-heading{justify-content:space-between;align-items:end;gap:20px;margin-bottom:25px;display:flex}.notation-heading 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span{color:#6d7b7a;text-align:right;max-width:190px;font-size:11px;line-height:1.4}.note-staff{height:195px;margin-top:10px;position:relative}.note-line{background:#26474d;height:1px;position:absolute;left:0;right:0}.ledger-line{background:#26474d;width:12%;height:1px;position:absolute;left:44%}.treble-clef{z-index:2;color:#26474d;font-family:Georgia,Times New Roman,serif;font-size:87px;line-height:1;position:absolute;top:26px;left:8px}.staff-notehead{z-index:3;background:#174250;border-radius:50%;width:17px;height:12px;position:absolute;left:53%;transform:translate(-50%,-50%)rotate(-20deg)}.staff-notehead b{font-family:Georgia,Times New Roman,serif;font-size:23px;font-weight:400;position:absolute;top:-12px;left:-20px;transform:rotate(20deg)}.piano-keyboard,.guitar-board{grid-column:1/-1}.piano-keyboard{background:#203f47;height:245px;padding:0 4%;position:relative;overflow:hidden}.white-keys{height:100%;display:flex}.white-key{z-index:1;color:#173a41;cursor:pointer;background:linear-gradient(90deg,#fafbf7,#edf0ea);border:1px solid #aebcb8;border-top:0;border-bottom:5px solid #bac8c4;flex:1;position:relative}.white-key:hover,.white-key.active{background:#d9ef95}.white-key span{width:100%;font-family:Georgia,Times New Roman,serif;font-size:24px;position:absolute;bottom:24px;left:0}.white-key small{color:#6c7e7a;font-size:9px;position:absolute;bottom:7px;left:0;right:0}.black-keys{z-index:2;pointer-events:none;height:63%;position:absolute;top:0;left:4%;right:4%}.black-key{color:#d8e9e7;cursor:pointer;pointer-events:auto;background:linear-gradient(90deg,#0b171b,#27444d);border:1px solid #0a1c22;border-radius:0 0 5px 5px;width:4.5%;height:100%;position:absolute;top:0;transform:translate(-50%);box-shadow:2px 4px 5px #0006}.black-key:hover,.black-key.active{background:linear-gradient(90deg,#3c786f,#85ba6c)}.black-key span{font-size:10px;position:absolute;bottom:10px;left:0;right:0}.guitar-board{background:linear-gradient(110deg,#d0aa79,#b17a45 42%,#966337);padding:26px 24px 20px;overflow-x:auto;box-shadow:inset 0 0 0 7px #7a4d2c}.fret-numbers,.guitar-string{grid-template-columns:80px 70px repeat(12,minmax(49px,1fr));min-width:760px;display:grid}.fret-numbers{color:#fff9e8;text-align:center;font-size:11px;font-weight:700}.fret-numbers span{padding:0 0 10px}.guitar-string{height:43px;position:relative}.string-name{z-index:3;color:#f5dfaf;align-items:center;gap:7px;font-family:Georgia,Times New Roman,serif;font-size:21px;display:flex;position:relative}.string-name small{color:#fff7df;letter-spacing:.08em;font-family:Arial,sans-serif;font-size:9px}.guitar-string:after{z-index:1;content:"";background:#e7dcc0;height:2px;position:absolute;top:50%;left:80px;right:0;box-shadow:0 2px #4d2f1a}.guitar-string button{z-index:2;color:#f4e9ce;cursor:pointer;background:0 0;border:0;border-left:2px solid #6b4328;font-family:Georgia,Times New Roman,serif;font-size:13px;position:relative}.guitar-string .open-string{color:#fff4d6;background:#8d5b35;border-left:0;border-right:3px solid #5e3924}.guitar-string button:hover,.guitar-string button.active{color:#153d42;background:#d9ef95}.guitar-string button.active{border-radius:50%;box-shadow:inset 0 0 0 2px #467872}.guitar-string .open-string.active{border-radius:20px;box-shadow:inset 0 0 0 2px #467872}.fret-tip{color:#fff4dc;letter-spacing:.03em;min-width:760px;margin:15px 0 0 80px;font-size:11px}@media (width<=760px){.music-lab{width:calc(100% - 32px);margin-bottom:55px}.instrument-tabs{overflow-x:auto}.instrument-tabs button{padding-left:12px;padding-right:12px}.note-lab{grid-template-columns:1fr}.note-lab-copy{padding:27px}.note-staff-card{padding:22px}.piano-keyboard{height:190px;padding:0 2%}.black-keys{left:2%;right:2%}.white-key span{font-size:16px;bottom:18px}.white-key small,.black-key span{display:none}.note-staff-title strong{font-size:35px}}