/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.back-to-top::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    z-index: -1;
    transition: var(--transition);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(41, 98, 255, 0.3);
}

.back-to-top:hover::before {
    background: var(--secondary-gradient);
}

/* General Responsive Adjustments */
@media (max-width: 1200px) {
    .container {
        width: 95%;
    }
}

@media (max-width: 992px) {
    body {
        font-size: 15px;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 14px;
    }

    .section {
        padding: 2.5rem 0;
    }

    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 576px) {
    body {
        font-size: 13px;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .container {
        padding: 0 0.5rem;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-primary {
    color: var(--primary-color);
}

.text-secondary {
    color: var(--secondary-color);
}

.bg-light {
    background-color: var(--light-color);
}

.bg-dark {
    background-color: var(--dark-color);
}

.shadow-sm {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.shadow-md {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.shadow-lg {
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}