body {
    margin: 0;
    background: #12001f;
    font-family: Arial, sans-serif;
}

.container {
    width: 100%;
    max-width: 1250px;
    margin: auto;
    padding: 40px 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
}

.banner-box {
    width: 500px;
}

.main-banner {
    width: 100%;
    border-radius: 18px;
}

.button-area {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.btn-login, .btn-register {
    text-decoration: none;
    padding: 14px 35px;
    border-radius: 30px;
    display: inline-block;
    font-size: 18px;
    font-weight: bold;
    text-align: center;
}

.btn-login {
    background: #5a00d4;
    color: #ffffff;
}

.btn-register {
    background: #00d9ff;
    color: #001019;
}

/* Mobile */
@media (max-width: 900px) {
    .container {
        flex-direction: column;
        gap: 20px;
    }
}