/* Footer Styles */
.footer {
    background-color: var(--color-dark);
    padding: 80px 0 30px;
    color: var(--color-text-light);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-column {
    display: flex;
    flex-direction: column;
}

.footer-about {
    max-width: 350px;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-logo img {
    height: 40px;
    width: auto;
    display: block;
}

.footer-description {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-lighter);
    margin: 0 0 25px 0;
    text-align: left;
}

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: auto;
}

.footer-social .social-icon {
    width: 36px;
    height: 36px;
    border: 2px solid var(--color-primary-footer);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-footer);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social .social-icon:hover {
    background-color: var(--color-primary-footer);
    color: var(--color-text-primary);
    transform: translateY(-2px);
}

.footer-heading {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-light);
    margin: 0 0 20px 0;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links li {
    margin: 0;
}

.footer-links a {
    color: var(--color-text-lighter);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-primary-footer);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--color-bg-gray-medium);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom-right {
    display: flex;
    align-items: center;
    gap: 25px;
}

.footer-copyright {
    font-size: 14px;
    color: var(--color-text-quaternary);
    margin: 0;
}

.footer-legal {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.footer-legal a {
    color: var(--color-text-lighter);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-legal a:hover {
    color: var(--color-primary-footer);
}

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: 2px solid var(--color-primary-footer);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    padding: 0;
    color: var(--color-primary-footer);
}

.theme-toggle:hover {
    background-color: var(--color-primary-footer);
    color: var(--color-text-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(128, 216, 218, 0.3);
}

.theme-toggle:active {
    transform: translateY(0);
}

.theme-icon {
    position: absolute;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.theme-icon.sun-icon {
    opacity: 1;
    transform: rotate(0deg);
}

.theme-icon.moon-icon {
    opacity: 0;
    transform: rotate(90deg);
}

[data-theme="dark"] .theme-icon.sun-icon {
    opacity: 0;
    transform: rotate(90deg);
}

[data-theme="dark"] .theme-icon.moon-icon {
    opacity: 1;
    transform: rotate(0deg);
}

/* Footer Responsive */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .footer-about {
        max-width: 100%;
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .footer {
        padding: 60px 0 25px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 35px;
        margin-bottom: 30px;
    }

    .footer-about {
        grid-column: 1;
    }

    .footer-description {
        font-size: 14px;
    }

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }

    .footer-bottom-right {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .footer-legal {
        justify-content: center;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .footer {
        padding: 50px 0 20px;
    }

    .footer-content {
        gap: 30px;
        margin-bottom: 25px;
    }

    .footer-logo img {
        height: 35px;
    }

    .footer-heading {
        font-size: 16px;
        margin-bottom: 15px;
    }

    .footer-links {
        gap: 10px;
    }

    .footer-links a {
        font-size: 14px;
    }

    .footer-copyright {
        font-size: 13px;
    }

    .footer-legal {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }

    .footer-legal a {
        font-size: 13px;
    }
}