:root{color-scheme:light dark;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#e8f7ff;background:#082c47}
*{box-sizing:border-box}body{margin:0}button{font:inherit;cursor:pointer}button:focus-visible{outline:3px solid #ffe068;outline-offset:5px}[hidden]{display:none!important}
.playground{max-width:1200px;margin:auto}header,footer{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 26px}header{border-bottom:1px solid #ffffff1a}header>div{display:flex;align-items:center;gap:10px}.preview-label{font-size:12px;color:#b4cddb}.live-dot{width:8px;height:8px;border-radius:50%;background:#b4cddb;box-shadow:0 0 0 4px #ffffff0a}body[data-mode=camera] .live-dot{background:#79e5bc}.stage{height:380px;position:relative;overflow:hidden;touch-action:none;background:radial-gradient(ellipse at 55% 85%,#19658860,transparent 65%)}.instructions{position:absolute;top:28px;left:30px;right:30px;pointer-events:none}h2{font-size:clamp(24px,3vw,34px);line-height:1.1;letter-spacing:-.04em;margin:0 0 10px}.instructions p{font-size:14px;color:#b4cddb;margin:0}.target{position:absolute;left:60%;top:54%;transform:translate(-50%,-50%);width:72px;height:72px;border-radius:50%;border:2px solid #ffe068;background:#ffe06812;color:#ffe068;box-shadow:0 0 0 12px #ffe06806,0 0 40px #ffe06818;font-size:38px;transition:background .2s,box-shadow .2s,color .2s;touch-action:none}.target:hover,.target.is-over{background:#ffe06830;box-shadow:0 0 0 14px #ffe0680b,0 0 50px #ffe06828}.target.is-held{background:#79e5bc40;color:#79e5bc;border-color:#79e5bc;border-radius:20px}.target.is-hit{background:#79e5bc;color:#082c47;border-color:#79e5bc;box-shadow:0 0 0 22px #79e5bc20}.dock{position:absolute;left:76%;top:62%;transform:translate(-50%,-50%);border:2px dashed #79e5bc8a;width:96px;height:96px;border-radius:24px;display:grid;place-items:center;color:#79e5bc;font-size:32px;background:#79e5bc08}.hand-pointer{position:absolute;width:34px;z-index:5;pointer-events:none;filter:drop-shadow(0 3px 3px #0007)}.hand-pointer img{width:100%;display:block}.hand-pointer.is-held{filter:drop-shadow(0 0 7px #79e5bc)}video{position:absolute;bottom:16px;left:22px;width:132px;height:98px;object-fit:cover;transform:scaleX(-1);border:1px solid #ffffff40;border-radius:14px;pointer-events:none}
.start-panel{position:absolute;bottom:28px;left:30px;right:30px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.start-panel p{flex-basis:100%;margin:0;color:#b4cddb;font-size:12px}.action{min-height:44px;border:1px solid #ffffff40;border-radius:13px;background:#ffffff12;color:#e8f7ff;padding:0 17px;display:inline-flex;align-items:center;justify-content:center;gap:9px;transition:background .18s,box-shadow .18s}.action:hover{background:#ffffff25;box-shadow:0 0 0 3px #ffffff08}.action.primary{background:#e8f7ff;color:#082c47;border-color:#e8f7ff}.action.primary:hover{background:#fff}.action:disabled{opacity:.6;cursor:wait}.secondary{border-color:transparent}.stop{font-size:13px;flex-shrink:0}.camera-icon{font-size:19px}footer{min-height:74px;border-top:1px solid #ffffff1a}footer p{font-size:13px;color:#bdd6e4;margin:0;max-width:65ch}.disclaimer{margin:0;padding:0 26px 18px;color:#a6bfce;font-size:11px;line-height:1.5}.completion{position:absolute;inset:0;background:#082c47e8;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:15px}.completion>span{height:76px;width:76px;border:2px solid #79e5bc;border-radius:50%;display:grid;place-items:center;font-size:40px;color:#79e5bc;box-shadow:0 0 0 14px #79e5bc10}.completion h2{margin:0;font-size:30px}body[data-mode=idle] .target{opacity:.6}body[data-mode=idle] .target,body[data-mode=loading] .target{pointer-events:none}
@media(max-width:560px){header,footer{padding:16px 18px}.stage{height:440px}.instructions{left:20px;top:24px;right:20px}.start-panel{left:20px;right:20px;bottom:20px;display:grid;gap:8px}.start-panel .action{width:100%}.start-panel p{text-align:center}.target{top:42%;left:60%;width:64px;height:64px}.disclaimer{padding:0 18px 16px}.dock{width:80px;height:80px}video{width:96px;height:72px;left:18px}.preview-label{font-size:11px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}