#main-footer {
    background-color: var(--dark-grey);
    color: #bdc3c7;
    padding: 80px 0 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    padding-bottom: 60px;
}

.footer-col h4 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

.footer-brand {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 15px;
    text-decoration: none;
}

.footer-brand .logo-text-main,
.footer-brand .logo-text-sub {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-brand .logo-text-main {
    color: var(--white);
}

.footer-brand .logo-text-sub {
    color: var(--medium-grey);
}

.footer-tagline,
.footer-oab {
    font-size: 0.9rem;
    color: var(--medium-grey);
    line-height: 1.6;
}

.footer-oab {
    margin-top: 10px;
    font-weight: 600;
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul a,
.footer-contact-link {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-col ul a:hover,
.footer-contact-link:hover {
    color: var(--white);
    text-decoration: underline;
}

.footer-contact-link {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

address {
    font-style: normal;
    line-height: 1.6;
    margin-bottom: 20px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-top: 1px solid #3e5164;
    font-size: 0.9rem;
}

.birisystem-credit {
    font-size: 0.8em;
    color: #95a5a6;
}

.birisystem-credit a {
    color: var(--white);
    text-decoration: none;
    font-weight: bold;
}

.birisystem-credit i {
    color: var(--primary-blue);
}