:root{--bg:#0d1117;--panel:#161b22;--panel2:#1c2128;--border:#30363d;--text:#e6edf3;--muted:#8b949e;--accent:#2f81f7;--green:#3fb950;--red:#f85149;--amber:#d29922;--mark:rgba(47,129,247,.28);--mark-active:rgba(210,153,34,.55)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Segoe UI,system-ui,sans-serif;font-size:14px}:focus-visible{outline:2px solid var(--accent);outline-offset:1px;border-radius:4px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1400px;margin:0 auto;padding:20px}header.topbar{display:flex;align-items:center;gap:16px;padding:12px 20px;background:var(--panel);border-bottom:1px solid var(--border)}header.topbar h1{font-size:16px;margin:0;letter-spacing:.5px}header.topbar .spacer{flex:1 1}input[type=search],input[type=text],select{padding:6px 8px}button,input[type=search],input[type=text],select{background:var(--panel2);color:var(--text);border:1px solid 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