:root{color-scheme:light dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f9f6ef;color:#172033;touch-action:manipulation}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input{font:inherit}button{min-height:48px;border:1px solid #ccd4db;border-radius:8px;background:#fffefa;color:#172033;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:800;text-transform:capitalize}button:active{transform:translateY(1px)}button:disabled{opacity:.45}.studentShell{width:min(720px,100%);margin:0 auto;padding:max(16px,env(safe-area-inset-top)) 16px max(18px,env(safe-area-inset-bottom))}header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px}.eyebrow{margin:0 0 5px;color:#7c5b27;font-size:.78rem;font-weight:900;text-transform:uppercase}h1{margin:0;font-size:clamp(2rem,9vw,3.4rem);line-height:1}.lobby{display:grid;gap:14px}label{display:grid;gap:7px;font-size:.92rem;font-weight:800}input{min-height:52px;border:1px solid #c8d1d9;border-radius:8px;padding:0 14px;background:#fff;color:#172033;font-size:1.1rem}.primary{background:#126c63;color:#fff;border-color:#126c63}.standby{min-height:360px;display:grid;place-items:center;align-content:center;gap:18px;color:#52606d}.spin{animation:spin 1.4s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.prompt{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;color:#243349;font-weight:800}.prompt p{margin:0}.touchStage{position:relative;overflow:hidden;aspect-ratio:4 / 5;border-radius:8px;border:1px solid #c7d0d8;background:#101820;touch-action:none;-webkit-user-select:none;user-select:none}.touchStage img{width:100%;height:100%;object-fit:cover;display:block}.touchStage.paused img{filter:grayscale(.85) brightness(.75)}.freeze{position:absolute;inset:0;display:grid;place-items:center;background:#10182075;color:#fff;font-size:2rem;font-weight:900}.answer{position:absolute;border-radius:999px;border:3px solid #44efad;background:#44efad33;transform:translate(-50%,-50%)}.statusControls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px}.statusControls button{min-width:0}.statusControls .selected{background:#e8f6f3;border-color:#27a394;color:#064a43}.notice{min-height:24px;color:#52606d}@media(min-width:680px){.touchStage{aspect-ratio:16 / 10}}@media(prefers-color-scheme:dark){:root{background:#0f141a;color:#edf3f1}button,input{background:#1d242c;border-color:#394653;color:#edf3f1}.primary{background:#28b09f;border-color:#28b09f;color:#061110}.prompt{color:#e3ece9}.notice,.standby{color:#a9b6bf}.statusControls .selected{background:#123d39;color:#defaf5}}