:root{color-scheme:dark;font-family:system-ui,sans-serif;background:#0b1411;color:#e6f1eb}*{box-sizing:border-box}body{margin:0}main{max-width:1100px;margin:auto;padding:28px 18px}a{color:#66dca6}h1{font-size:28px}h2{font-size:18px}p{line-height:1.7;color:#b8c9bf}section{padding:22px;background:#13221b;border:1px solid #284737;border-radius:14px;margin:20px 0}.actions{display:flex;gap:12px;flex-wrap:wrap}button{background:#26764f;color:white;border:1px solid #399465;border-radius:8px;padding:12px 16px;cursor:pointer;font:inherit}button:disabled{opacity:.45;cursor:default}iframe{width:100%;height:650px;border:1px solid #35583f;margin-top:20px;background:#000}dl{display:grid;grid-template-columns:1fr 1fr;gap:12px}dd{margin:0;color:#b8c9bf}[hidden]{display:none!important}@media(max-width:600px){section{padding:16px}iframe{height:480px}.actions button{width:100%}}
.courses{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:8px;max-height:420px;overflow:auto}.courses li{display:flex;flex-direction:column;gap:2px;padding:10px 12px;background:#0f1c16;border:1px solid #24402f;border-radius:10px}.cname{color:#e6f1eb}.cmeta{font-size:13px;color:#8fae9c}