:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;font:18px/145% var(--sans);color:var(--text);background:var(--bg)}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc}}body{margin:0}.container{text-align:center;max-width:600px;margin:0 auto;padding:20px}h1{color:var(--text-h);margin-bottom:20px}form{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px;display:grid}form input,form select,form button{border:1px solid var(--border);font-size:14px;font-family:var(--sans);box-sizing:border-box;border-radius:6px;width:100%;padding:10px}form button{background-color:var(--accent);color:#fff;cursor:pointer;border:none;grid-column:span 2;transition:all .2s}form button:hover{opacity:.9}#courseList{flex-direction:column;gap:10px;display:flex}#courseList div{border:1px solid var(--border);background:var(--code-bg);box-sizing:border-box;border-radius:6px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;width:100%;padding:12px;display:flex}#courseList div span{word-break:break-word;flex:auto;min-width:0;line-height:1.4}#courseList strong{color:var(--text-h)}#courseList a{color:var(--accent);word-break:break-word;max-width:100%;text-decoration:none;display:inline-block}#courseList a:hover{text-decoration:underline}#courseList button{color:#fff;cursor:pointer;background:#dc143c;border:none;border-radius:5px;flex-shrink:0;padding:6px 10px}#courseList button:hover{opacity:.85}@media (width<=600px){form{grid-template-columns:1fr 1fr;gap:10px}form input,form select{min-width:0;padding:8px;font-size:14px}form button{grid-column:span 2}#courseList div{flex-direction:column;align-items:flex-start;gap:8px}#courseList div span{width:100%}#courseList button{align-self:flex-end;margin-top:4px}}