:root{color-scheme:light}*{box-sizing:border-box}body,html{margin:0;padding:0;background:#ffffff;color:#111111;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.5}button,input,select,textarea{font:inherit;color:inherit}label{display:block;font-weight:600;margin:8px 0 4px}hr{border:0;height:1px;background:#e5e7eb;margin:24px 0}.container{max-width:960px;margin:2rem auto;padding:0 1rem}.card{background:#f6f8fa;border:1px solid #e2e8f0;border-radius:8px;padding:12px}.button{display:inline-block;border-radius:6px;padding:8px 14px;cursor:pointer;user-select:none}.button-primary{background:#000;color:#fff;border:1px solid #000}.button-outline{background:#fff;color:#111;border:1px solid #d1d5db}.button:disabled{opacity:.6;cursor:not-allowed}.markdown p{margin:.4rem 0}.markdown h2{font-weight:700;margin-top:1rem}.markdown ul{list-style:disc;padding-left:1.25rem}