*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:#f4f4f8;color:#1a1a2e}.input-field{display:block;width:100%;padding:10px 14px;border:1.5px solid #d1d5db;border-radius:8px;font-size:.95rem;color:#1a1a2e;background:#fff;transition:border-color .15s,box-shadow .15s;outline:none}.input-field:focus{border-color:#4361ee;box-shadow:0 0 0 3px #4361ee26}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border:none;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;transition:opacity .15s,transform .1s}.btn:disabled{opacity:.55;cursor:not-allowed}.btn:not(:disabled):active{transform:scale(.97)}.btn.btn-primary{background:#4361ee;color:#fff}.btn.btn-primary:not(:disabled):hover{background:#3451d1}.btn.btn-secondary{background:#e8eaf6;color:#3451d1}.btn.btn-secondary:not(:disabled):hover{background:#d1d5f8}.btn.btn-danger{background:#ef4444;color:#fff}.btn.btn-danger:not(:disabled):hover{background:#dc2626}.alert{padding:12px 16px;border-radius:8px;font-size:.9rem;margin-top:16px}.alert.alert-error{background:#fdecea;color:#c62828;border:1px solid #f5c6c6}