/* Scroll to Top Button Styles */
.scroll-to-top-btn {
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 1000;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scroll-to-top-btn:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(0) scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.scroll-to-top-btn:active {
    transform: translateY(0) scale(0.95);
}

.scroll-to-top-btn.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .scroll-to-top-btn {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .scroll-to-top-btn {
        bottom: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* Animation for smooth appearance */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scroll-to-top-btn.show {
    animation: fadeInUp 0.3s ease-out;
}