/* Footer uses the same restrained dark surface as the hero. */
.footer {
    padding: 96px 0 30px;
    background: var(--dark);
    color: var(--light);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 50px;
    padding-bottom: 64px;
}

.footer-top--wide {
    grid-template-columns: 1.2fr repeat(4, 1fr);
}

.footer-logo { display: inline-block; }

.footer-logo img {
    height: 95px;
    width: auto;
    margin-bottom: 25px;
}

.footer-description {
    max-width: 420px;
    margin-bottom: 34px;
    color: #b5b8bb;
    font-size: .98rem;
    line-height: 1.9;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 16px;
    font-style: normal;
}

.footer-contact a,
.footer-contact span {
    display: flex;
    align-items: center;
    gap: 13px;
    color: #d7d7d7;
    font-size: .95rem;
    text-decoration: none;
    transition: color var(--transition);
}

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

.footer-contact svg,
.back-top svg {
    width: 20px;
    height: 20px;
    flex: 0 0 auto;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.footer-contact svg { color: var(--primary); }

.footer-column h3 {
    margin-bottom: 26px;
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 700;
}

.footer-column ul { list-style: none; }
.footer-column li + li { margin-top: 15px; }

.footer-column a {
    color: #b8b8b8;
    font-size: .95rem;
    text-decoration: none;
    transition: color var(--transition), padding-left var(--transition);
}

.footer-column a:hover { padding-left: 5px; color: var(--primary); }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-top: 28px;
    border-top: 1px solid rgba(255,255,255,.09);
}

.footer-copy,
.footer-made { color: #9da2a6; font-size: .875rem; }
.footer-made span { color: var(--primary); font-weight: 700; }

.back-top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    z-index: 20;
    display: grid;
    width: 56px;
    height: 56px;
    place-items: center;
    border-radius: 18px;
    background: var(--primary);
    box-shadow: 0 18px 45px rgba(0,155,119,.35);
    color: var(--white);
    opacity: 0;
    pointer-events: none;
    text-decoration: none;
    transform: translateY(12px);
    transition: transform var(--transition), opacity var(--transition), background var(--transition);
}

.back-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-top:hover { background: #00795d; transform: translateY(-4px); }