.footer {
    background-color: #333;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

.footer-container {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    gap: 30px;
}

.footer-section {
    flex: 1;
    min-width: 200px;
    margin-bottom: 20px;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.footer-links,
.social-links,
.contact-info {
    list-style: none;
    padding: 0;
}

.footer-links li,
.social-links li,
.contact-info li {
    margin-bottom: 10px;
}

.footer-links a,
.social-links a,
.contact-info a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover,
.social-links a:hover,
.contact-info a:hover {
    color: aqua;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-links i {
    font-size: 24px;
}

.contact-info i {
    margin-right: 10px;
}

.contact-info{
    margin-left: 75px;
}

.contact-info #images-contact{
    width: 20px;
    margin-left: 20px;
}

.footer-bottom {
    margin-top: 20px;
    border-top: 1px solid #444;
    padding-top: 20px;
}

.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: aquamarine;
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
}

.back-to-top:hover {
    box-shadow: 0 0 30px aqua;
    backdrop-filter: blur(8px);
    cursor: pointer;
    scale: 1.2;
}

@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        align-items: center;
    }
}

@media screen and (max-width: 320px) {
    .footer {
        padding: 25px 15px;
    }
    
    .footer-container {
        gap: 20px;
    }
    
    .footer-section {
        min-width: 100%;
        margin-bottom: 15px;
    }
    
    .footer-section h3 {
        font-size: 1.2rem;
        margin-bottom: 10px;
    }
    
    .footer-links li, .social-links li, .contact-info li {
        margin-bottom: 8px;
        font-size: 0.9rem;
    }
    
    .social-links {
        gap: 10px;
    }
    
    .social-links i {
        font-size: 18px;
    }
    
    .contact-info #images-contact {
        width: 16px;
        margin-left: 10px;
    }
    
    .footer-bottom {
        margin-top: 15px;
        padding-top: 15px;
        font-size: 0.8rem;
    }
    
    .back-to-top {
        width: 30px;
        height: 30px;
        bottom: 15px;
        right: 15px;
    }
}

@media screen and (min-width: 321px) and (max-width: 375px) {
    .footer {
        padding: 30px 15px;
    }
    
    .footer-container {
        gap: 22px;
    }
    
    .footer-section {
        min-width: 100%;
    }
    
    .footer-section h3 {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }
    
    .footer-links li, .social-links li, .contact-info li {
        font-size: 0.95rem;
    }
    
    .social-links i {
        font-size: 20px;
    }
    
    .contact-info #images-contact {
        width: 18px;
        margin-left: 12px;
    }
    
    .footer-bottom {
        font-size: 0.85rem;
    }
    
    .back-to-top {
        width: 35px;
        height: 35px;
    }
}

@media screen and (min-width: 376px) and (max-width: 425px) {
    .footer {
        padding: 35px 15px;
    }
    
    .footer-section {
        min-width: 100%;
    }
    
    .footer-section h3 {
        font-size: 1.4rem;
    }
    
    .footer-links li, .social-links li, .contact-info li {
        font-size: 1rem;
    }
    
    .social-links i {
        font-size: 22px;
    }
    
    .footer-bottom {
        font-size: 0.9rem;
    }
}

@media screen and (min-width: 426px) and (max-width: 768px) {
    .footer {
        padding: 35px 20px;
    }
    
    .footer-container {
        flex-direction: column;
        align-items: center;
        gap: 25px;
    }
    
    .footer-section {
        min-width: 80%;
        text-align: center;
        margin-bottom: 0;
    }
    
    .contact-info {
        margin-left: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .contact-info li {
        display: flex;
        justify-content: center;
        align-items: center;
    }
    
    .footer-bottom {
        margin-top: 25px;
        padding-top: 20px;
    }
}

@media screen and (min-width: 769px) and (max-width: 1024px) {
    .footer-container {
        max-width: 900px;
        gap: 20px;
    }
    
    .footer-section {
        min-width: 180px;
    }
    
    .contact-info {
        margin-left: 50px;
    }
}

@media screen and (min-width: 1025px) and (max-width: 1440px) {
    .footer {
        padding: 50px 20px;
    }
    
    .footer-container {
        max-width: 1200px;
        gap: 40px;
    }
    
    .footer-section h3 {
        font-size: 1.6rem;
    }
    
    .footer-links li, .social-links li, .contact-info li {
        font-size: 1.05rem;
    }
    
    .social-links i {
        font-size: 26px;
    }
    
    .contact-info #images-contact {
        width: 22px;
    }
    
    .back-to-top {
        width: 45px;
        height: 45px;
    }
}

@media screen and (min-width: 1441px) {
    .footer {
        padding: 60px 20px;
    }
    
    .footer-container {
        max-width: 1400px;
        gap: 50px;
    }
    
    .footer-section {
        min-width: 250px;
    }
    
    .footer-section h3 {
        font-size: 1.8rem;
        margin-bottom: 20px;
    }
    
    .footer-links li, .social-links li, .contact-info li {
        margin-bottom: 12px;
        font-size: 1.1rem;
    }
    
    .social-links {
        gap: 20px;
    }
    
    .social-links i {
        font-size: 28px;
    }
    
    .contact-info i {
        margin-right: 12px;
    }
    
    .contact-info #images-contact {
        width: 24px;
        margin-left: 25px;
    }
    
    .footer-bottom {
        margin-top: 30px;
        padding-top: 25px;
        font-size: 1.1rem;
    }
    
    .back-to-top {
        width: 50px;
        height: 50px;
        bottom: 25px;
        right: 25px;
    }
}