.main-footer {
    background: linear-gradient(180deg, #111d49, #0a1335);
    color: #fff;
    padding: 68px 0 0;
}

.footer-container {
    width: min(1280px, calc(100% - 32px));
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 24px;
}

.footer-brand {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
}

.footer-brand span {
    color: #d56022;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.75);
    max-width: 400px;
    margin: 12px 0 16px;
}

.social-links {
    display: flex;
    gap: 10px;
}

.social-links a {
    width: 38px;
    height: 38px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: rgba(255, 255, 255, 0.14);
    transition: all 0.2s ease;
}

.social-links a:hover {
    background: #d56022;
}

.footer-title {
    margin-bottom: 14px;
    font-size: 1.05rem;
    font-weight: 800;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.74);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    margin-top: 34px;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    padding: 16px 0 22px;
    color: rgba(255, 255, 255, 0.66);
    font-size: 14px;
}

.footer-bottom-sub {
    display: inline;
}

.scroll-to-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 55px;
    height: 55px;
    background-color: #ff6b00;
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 28px;
    font-weight: bold;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(255, 107, 0, 0.4);
    z-index: 9999;
    transition: all 0.3s ease;
}

.scroll-to-top-btn:hover {
    background-color: #e55a00;
    transform: scale(1.15);
    box-shadow: 0 10px 25px rgba(255, 107, 0, 0.5);
}

.scroll-to-top-btn.show {
    display: flex;
}

@media (max-width: 1199px) {
    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr;
    }
}

@media (max-width: 991px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-bottom-sub {
        display: block;
        margin-top: 4px;
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}