.kit {
    border: 1px solid transparent;
    background: linear-gradient(white, white) padding-box,
        linear-gradient(120deg, #3080F7, #9333ea, #06b6d4, #3080F7) border-box;
    background-size: 200% 200%;
    animation: aurora-border 6s ease infinite;
    box-shadow: 0 4px 20px rgba(48, 128, 247, 0.15);
}

@keyframes aurora-border {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

@media (max-width: 767.98px) {
    body {
        padding-bottom: 75px;
    }
}