/* ═══════════════════════════════════════
   FOOTER — Deep burgundy + polish
   ═══════════════════════════════════════ */

.footer {
    background: var(--c-primary-dark);
    padding: 5rem 0 2rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(
        90deg,
        transparent 5%,
        var(--c-primary-dark) 20%,
        var(--c-primary-light) 50%,
        var(--c-primary-dark) 80%,
        transparent 95%
    );
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    padding-bottom: 4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer .logo-pv {
    color: #fff;
    transition: color 0.3s;
}

.footer .logo:hover .logo-pv {
    color: var(--c-primary-light);
}

.footer .logo-separator {
    background: rgba(255,255,255,0.2);
}

.footer .logo-imperiale {
    color: rgba(255,255,255,0.8);
}

.footer__tagline {
    font-size: 0.88rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 1.5rem;
    line-height: 1.7;
}

.footer__heading {
    font-size: 0.68rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.footer__nav ul {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer__nav a {
    font-size: 0.88rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.3s;
    position: relative;
    display: inline-block;
    padding-bottom: 2px;
}

.footer__nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.4);
    transition: width 0.3s var(--ease-out);
}

.footer__nav a:hover,
.footer__nav a:focus-visible {
    color: #fff;
}

.footer__nav a:hover::after,
.footer__nav a:focus-visible::after {
    width: 100%;
}

.footer__bottom {
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer__bottom p {
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer__disclaimer {
    max-width: 500px;
    text-align: right;
    line-height: 1.5;
}

/* ── Back to top ── */
.footer__back-to-top {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.5);
    transition: all 0.3s var(--ease-out);
    flex-shrink: 0;
}

.footer__back-to-top:hover,
.footer__back-to-top:focus-visible {
    border-color: var(--c-primary-light);
    color: var(--c-primary-light);
    transform: translateY(-3px);
}