@font-face{font-family:Brand;src:url('/brand-script.ttf')}*{box-sizing:border-box}html{color-scheme:light}body{margin:0;background:#fcf8fa;color:#302b2e;font-family:Arial,Helvetica,sans-serif;font-size:15px;line-height:1.55}button,select,input{font:inherit}button,a,select,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #b44e77;outline-offset:3px}a{color:#a1486b}[hidden]{display:none!important}.header{max-width:1260px;margin:auto;padding:20px 32px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid #eee4e8}.brand{display:flex;gap:12px;align-items:center;text-decoration:none}.brand img{width:46px;height:46px;object-fit:contain}.brand strong{font-family:Brand,Georgia,serif;font-weight:400;font-size:27px}.brand small{display:block;letter-spacing:2px;font-size:8px;color:#8d7a82}.back{font-size:13px;text-decoration:none;font-weight:600}main{max-width:1260px;margin:auto;padding:38px 32px 24px}.intro{max-width:750px;margin-bottom:28px}.eyebrow{color:#ae4f74;font-weight:700;font-size:11px;letter-spacing:2px;margin:0 0 12px}h1{font:54px/1.1 Georgia,serif;letter-spacing:-2px;margin:0 0 18px}h1 em{color:#ae4f74;font-weight:400}.intro>p:last-child{color:#71646c;font-size:16px;margin:0;max-width:640px}.workspace{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(300px,1fr);gap:20px;align-items:start}.model-card,.rhythm-card,.ecg-card{border:1px solid #eadfe5;border-radius:24px;background:#fff;overflow:hidden;box-shadow:0 16px 45px #75456008}.model-card{background:radial-gradient(ellipse at 45% 40%,#fff 10%,#f7eaf0 75%)}.model-top{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;position:relative;z-index:1}.model-label{font-size:10px;letter-spacing:2px;font-weight:700;color:#9d5973;display:flex;align-items:center;gap:9px}.model-label i{width:6px;height:6px;border-radius:50%;background:#bc6084}.quiet{background:transparent;border:0;color:#875e72;font-size:12px;padding:8px;border-radius:8px}.quiet:hover{background:#f5e6ed}.stage{position:relative;height:430px;isolation:isolate}.stage:before{content:'';position:absolute;width:70%;height:70%;left:15%;top:13%;border:1px solid #e5ccda;border-radius:50%;z-index:-1}.stage canvas{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}.view-hint{position:absolute;bottom:6px;left:10px;right:10px;text-align:center;font-size:11px;color:#927e89;pointer-events:none}.model-status{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px;padding:32px;text-align:center;font-size:13px;background:#faf0f5;z-index:2}.model-status button{border:1px solid #d9a7ba;color:#a2486c;background:white;border-radius:12px;padding:10px 15px}.loader{width:24px;height:24px;border:2px solid #e9ccda;border-top-color:#b05077;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.view-controls{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:18px 20px}.view-controls>div{display:flex;gap:8px}.pill{background:#ffffffb0;border:1px solid #decbd5;border-radius:30px;color:#745769;font-size:12px;padding:9px 12px}.pill[aria-pressed=true]{background:#ad4c73;color:white;border-color:#ad4c73}.legend{padding:0 22px 20px;display:flex;gap:8px 15px;flex-wrap:wrap;color:#7a6673;font-size:11px}.legend span:before{content:'';display:inline-block;background:var(--dot);width:7px;height:7px;border-radius:50%;margin-right:5px}.rhythm-card{padding:28px}.select-label{display:block;font-size:13px;font-weight:600;margin-bottom:9px}select{display:block;width:100%;border:1px solid #e1ced9;border-radius:12px;min-height:48px;background:#fff8fb;color:#764d64;padding:10px 35px 10px 12px;font-size:13px;cursor:pointer}.rhythm-info{margin-top:28px}.group{font-size:10px;letter-spacing:1.4px;text-transform:uppercase;color:#9e6882}h2{font:27px/1.2 Georgia,serif;margin:8px 0 12px;letter-spacing:-.3px}.rate{display:inline-block;background:#f7edf3;border-radius:8px;padding:6px 10px;color:#995573;font-size:12px;margin:0 0 10px}.rhythm-info>p:last-child{font-size:13px;color:#746571;line-height:1.75;margin:8px 0 25px;min-height:112px}.playback{display:grid;grid-template-columns:1fr 1.5fr;gap:8px}.primary,.sound-button{border:0;border-radius:12px;min-height:46px;padding:10px 12px;font-weight:600;font-size:12px}.primary{background:#ac4c73;color:white}.primary:hover{background:#983c62}.sound-button{background:#f8edf3;color:#9d4c70;border:1px solid #ead2df}.sound-button[aria-pressed=true]{border-color:#a9577b;background:#eddae5}.volume{display:flex;align-items:center;gap:10px;margin-top:18px;font-size:12px;color:#906a80}.volume input{min-width:0;width:100%;accent-color:#ac4c73;height:28px}.sound-hint{color:#9c8795;font-size:11px;line-height:1.5;margin:16px 0 0}.ecg-card{grid-column:1/-1;padding:22px 24px}.ecg-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.ecg-top .eyebrow{margin:0 0 4px}.ecg-top>div>span{font-size:11px;color:#9b8996}.sound-markers{display:flex;gap:8px}.sound-markers span{font-size:11px;color:#a2738e;background:#f7edf3;padding:5px 9px;border-radius:8px;transition:background .1s,color .1s}.sound-markers span.active{background:#ac4c73;color:white}.ecg-card canvas{width:100%;height:160px;display:block;border-radius:12px;background:#fffafb}.ecg-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:12px;font-size:10px;color:#9b8492}.educational{font-size:12px;color:#91808b;max-width:950px;margin:25px 0 0;line-height:1.7}footer{max-width:1260px;margin:auto;padding:22px 32px 32px;border-top:1px solid #eee4e8;color:#a38c9b;font-size:10px}footer p{margin:5px 0}footer a{color:inherit;text-underline-offset:2px}.model-card:fullscreen{display:flex;flex-direction:column;align-items:stretch;width:100%;height:100%;min-width:0;min-height:0;border:0;border-radius:0;max-width:none}.model-card:fullscreen .stage{height:0;min-height:0;min-width:0;flex:1 1 0}.model-card:fullscreen .view-controls{justify-content:center}.model-card:fullscreen .legend{justify-content:center}@media(max-width:900px){.workspace{grid-template-columns:minmax(0,1fr) minmax(270px,.9fr)}.rhythm-card{padding:22px}.stage{height:400px}.view-controls{flex-wrap:wrap}}@media(max-width:700px){.header{padding:14px 18px}.brand img{width:37px;height:37px}.brand strong{font-size:23px}.brand small{font-size:7px}.back{font-size:11px}main{padding:28px 18px 20px}h1{font-size:43px;margin-bottom:13px}.intro{margin-bottom:22px}.intro>p:last-child{font-size:14px}.workspace{grid-template-columns:1fr;gap:16px}.model-card{grid-row:2}.rhythm-card{grid-row:1;padding:21px}.rhythm-info{margin-top:19px}.rhythm-info>p:last-child{min-height:0;margin-bottom:19px}h2{font-size:25px}.stage{height:350px}.model-top{padding:14px 18px}.view-controls{padding:16px;gap:6px;flex-wrap:nowrap}.pill{font-size:11px;padding:9px 10px}.quiet{font-size:11px}.ecg-card{padding:19px 17px}.ecg-card canvas{height:140px}.ecg-bottom{flex-direction:column;gap:3px}.sound-hint{margin-bottom:0}.educational{font-size:11px}footer{padding:20px 18px}.playback button{font-size:13px}}@media(prefers-reduced-motion:reduce){.loader{animation:none}.sound-markers span{transition:none}}

@media(max-width:700px){.rhythm-card{display:contents}.rhythm-picker,.audio-controls,.rhythm-info{background:#fff;border:1px solid #eadfe5;border-radius:20px;padding:20px}.rhythm-picker{grid-row:1}.rhythm-picker .eyebrow{display:none}.model-card{grid-row:2}.audio-controls{grid-row:3}.ecg-card{grid-row:4}.rhythm-info{grid-row:5;margin:0}.rhythm-info>p:last-child{margin-bottom:0}.view-hint{bottom:0}.stage{height:330px}.view-controls{padding-top:20px}}

.model-card:fullscreen .model-top,.model-card:fullscreen .view-controls,.model-card:fullscreen .legend{flex-shrink:0}
.model-card:fullscreen .model-top{padding-top:max(14px,env(safe-area-inset-top));padding-left:max(18px,env(safe-area-inset-left));padding-right:max(18px,env(safe-area-inset-right))}
.model-card:fullscreen .view-controls{padding-bottom:max(16px,env(safe-area-inset-bottom))}