body {
    height: 100vh;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../images/bg.jpg') no-repeat center center;
    background-size: cover;
}

.overlay {
    position: fixed;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    top: 0;
    left: 0;
}

.login-card {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 400px;
    border-radius: 16px;
    animation: fadeIn 0.6s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(25px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.input-group-text {
    background: #f1f1f1;
}

.btn-login {
    border-radius: 10px;
    font-weight: 500;
}