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;
}

.container-fluid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
}

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: white;
}

    .header nav:hover a:not(:hover) {
        opacity: 0.3;
        transition: opacity 0.3s ease;
    }

    .header nav a:hover {
        opacity: 1;
    }

.nav-link:hover, .nav-link:focus {
    color: #0a58ca;
    text-decoration: underline;
}

.custom-btn {
    padding: 12px;
    width: 100%;
    border-radius: 20px;
    border: 1px solid;
    cursor: pointer;
    transition: 0.3s ease;
    background: linear-gradient(to right, #4facfe, #00f2fe);
    font-size: 1rem;
    margin-top: 15px;
}

    .custom-btn:hover {
        opacity: 0.7;
        transform: scale(1.05);
    }

    .custom-btn:active {
        transform: scale(1);
    }

input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 5px rgba(59, 130, 246, 0.3);
}

.footer {
    display: flex;
    align-items: center;
    justify-content: center;
    border-top: 1px solid black;
    padding: 5px;
}