:root{font-family:system-ui,-apple-system,sans-serif;color:#e7edf4;background:#10151b;color-scheme:dark}*{box-sizing:border-box}body{margin:0}main{padding:20px;max-width:1600px;margin:auto}header{display:flex;align-items:center;justify-content:space-between;gap:15px}h1{font-size:21px;letter-spacing:.02em}#status{font-size:13px;color:#a9bccd}#actions{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}button,select{font:inherit;border:1px solid #405161;border-radius:8px;padding:12px 16px;min-height:46px;background:#1c2936;color:#fff}button{cursor:pointer}#start,#pair{background:#276557;border-color:#428b79}button:disabled{opacity:.45;cursor:default}#message{color:#d6bd80;font-size:14px;min-height:20px}#stage{background:#000;border:1px solid #344553;overflow:auto;border-radius:8px}video{display:block;width:100%;height:auto}footer{font-size:12px;color:#7890a4;margin:20px 0}[hidden]{display:none!important}@media(max-width:600px){main{padding:14px}header{align-items:flex-start;flex-direction:column;gap:2px}h1{margin-bottom:5px}}