html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
    position: relative;
    min-height: 100%;
}

body {
    margin-bottom: 60px;
}

.header-img {
    height: 450px;
    object-fit: cover;
}

@media (max-width: 768px) {
    .header-img {
        height: 280px;
    }

    .carousel-caption h1 {
        font-size: 22px;
    }

    .carousel-caption p {
        font-size: 14px;
    }
}

.footer {
    background-color: #f8f9fa;
}

    .footer h5 {
        color: #0d6efd;
    }

    .footer p {
        margin-bottom: 4px;
    }

html, body {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.footer {
    width: 100%;
}