.footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    font-family: 'Poppins', sans-serif;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.footer a {
    color: #f8f9fa;
    transition: all 0.3s ease;
}

.footer a:hover {
    color: #ff6b6b;
    text-decoration: none;
}

.social-icon {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin: 0 5px;
    transition: all 0.3s ease;
    color: #fff;
    font-size: 1.1rem;
}

.social-icon:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    color: #ff6b6b;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #e63946;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.back-to-top:hover {
    background: #ff4757;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(230, 57, 70, 0.3);
}

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

@media (max-width: 768px) {
    .footer {
        text-align: center;
    }
    .footer .d-flex {
        flex-direction: column;
        align-items: center;
    }
    .social-icon {
        margin: 5px;
    }
    .back-to-top {
        width: 40px;
        height: 40px;
        font-size: 16px;
        bottom: 20px;
        right: 20px;
    }
}