/* ── Footer ─────────────────────────────────────── */
.site-footer {
    /* mesmo roxo da barra do topo (#860bab), escurecendo para baixo */
    background:
        radial-gradient(circle at 85% 0%, rgba(255,255,255,.10), transparent 45%),
        linear-gradient(180deg, #860bab 0%, #6a0889 100%);
    color: rgba(255,255,255,.8);
    padding: 3.5rem 0 0;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 2.5rem;
    padding-bottom: 2.5rem;
}

@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; text-align: center; } }

/* marca */
.footer-brand-name {
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -.4px;
    margin-bottom: .5rem;
    display: block;
}

.footer-tagline {
    font-size: .82rem;
    line-height: 1.6;
    color: rgba(255,255,255,.72);
    max-width: 280px;
}

@media (max-width: 540px) { .footer-tagline { max-width: 100%; } }

/* redes sociais */
.footer-socials {
    display: flex;
    gap: .45rem;
    flex-wrap: wrap;
    margin-top: 1.1rem;
}

@media (max-width: 540px) { .footer-socials { justify-content: center; } }

.footer-social-btn {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 9px;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.18);
    color: #fff;
    text-decoration: none;
    font-size: .95rem;
    transition: background .18s, color .18s, transform .18s;
}

.footer-social-btn:hover {
    background: #fff;
    color: #860bab;
    transform: translateY(-2px);
}

/* colunas de links */
.footer-col-title {
    font-size: .68rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: rgba(255,255,255,.6);
    margin-bottom: .85rem;
    display: block;
}

.footer-links {
    list-style: none; margin: 0; padding: 0;
    display: flex; flex-direction: column; gap: .55rem;
}

.footer-links a {
    font-size: .82rem;
    color: rgba(255,255,255,.85);
    text-decoration: none;
    transition: color .15s;
    display: inline-flex; align-items: center; gap: .35rem;
}

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

/* divisor e rodapé inferior */
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.16);
    padding: 1.1rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .5rem;
}

.footer-copy {
    font-size: .74rem;
    color: rgba(255,255,255,.65);
}

.footer-bottom-links {
    display: flex; gap: 1rem; flex-wrap: wrap;
}

.footer-bottom-links a {
    font-size: .73rem;
    color: rgba(255,255,255,.65);
    text-decoration: none;
    transition: color .15s;
}

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

@media (max-width: 540px) {
    .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
    .footer-bottom-links { justify-content: center; }
}

/* ── WhatsApp flutuante ─────────────────────────── */
.wa-float {
    position: fixed;
    right: 20px; bottom: 20px; z-index: 9999;
    width: 56px; height: 56px;
    background: #25d366; color: #fff;
    border-radius: 50%; text-decoration: none;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.55rem;
    box-shadow: 0 10px 28px rgba(37,211,102,.40);
    transition: transform .2s ease, box-shadow .2s ease;
    animation: waPulse 2.5s infinite;
}

.wa-float:hover {
    color: #fff;
    transform: translateY(-3px) scale(1.06);
    box-shadow: 0 16px 38px rgba(37,211,102,.50);
    animation: none;
}

@keyframes waPulse {
    0%, 100% { box-shadow: 0 10px 28px rgba(37,211,102,.40); }
    50%       { box-shadow: 0 10px 40px rgba(37,211,102,.60); }
}

@media (max-width: 480px) {
    .wa-float { width: 50px; height: 50px; font-size: 1.35rem; right: 14px; bottom: 14px; }
}