*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f5f5f7;color:#1a1a1a}button{font:inherit;cursor:pointer}input,textarea{font:inherit}.row{display:flex;gap:12px;align-items:center}.col{display:flex;flex-direction:column;gap:12px}.btn-primary{background:#1565c0;color:#fff;border:none;padding:10px 18px;border-radius:8px;font-weight:600}.btn-primary:hover{background:#0d4a99}.btn-primary:disabled{background:#90caf9;cursor:not-allowed}.btn-ghost{background:transparent;border:1px solid #ccc;padding:8px 14px;border-radius:8px}.input{width:100%;padding:10px;border:1px solid #ddd;border-radius:8px;font-size:15px}.card{background:#fff;border:1px solid #e0e0e0;border-radius:10px;padding:16px;box-shadow:0 1px 2px #0000000a}.topbar{display:flex;align-items:center;gap:16px;padding:12px 20px;background:#1565c0;color:#fff}.topbar a{color:#fff;text-decoration:none}.topbar h1{margin:0;font-size:16px;flex:1}.error{color:#c62828;font-size:14px;margin-top:8px}.muted{color:#777;font-size:13px}