:root{--bg:#0d1117;--bg-alt:#161b22;--border:#30363d;--text:#e6edf3;--text-dim:#8b949e;--accent:#58a6ff;--accent-2:#3fb950;--code-bg:#010409;--warn:#d29922;--danger:#f85149}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);max-width:900px;min-height:100vh;margin:0 auto;padding:2.5rem 1.5rem 5rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;line-height:1.6}h1{border-bottom:1px solid var(--border);margin-bottom:.25rem;padding-bottom:.75rem;font-size:1.8rem}p{margin:.75rem 0}a{color:var(--accent)}label{color:var(--text-dim);flex-direction:column;gap:.35rem;width:100%;max-width:320px;font-size:.9rem;display:flex}input,textarea,select{background:var(--code-bg);width:100%;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:.55rem .7rem;font-family:inherit;font-size:.95rem}input:focus,textarea:focus,select:focus{border-color:var(--accent);outline:none}textarea{resize:vertical;min-height:6rem}button{background:var(--accent);color:#04121f;cursor:pointer;border:none;border-radius:6px;padding:.55rem 1.2rem;font-family:inherit;font-size:.9rem;font-weight:600}button:hover{opacity:.9}button:disabled{opacity:.5;cursor:not-allowed}[role=alert]{color:var(--danger);font-size:.9rem}@media (max-width:640px){body{padding:1.25rem 1rem 3rem}h1{font-size:1.4rem}p{font-size:.94rem}}