/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  position: relative;
  background: var(--bg-2);
  border-top: 1px solid var(--line-soft);
  color: var(--ink-2);
  padding-top: clamp(3.5rem, 7vw, 5.5rem);
  overflow: hidden;
}

/* marca grande de fundo (assinatura) */
.footer__watermark {
  position: absolute;
  left: 50%; bottom: -0.18em;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(5rem, 22vw, 18rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--ink);
  opacity: 0.03;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}

.footer__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
}
.footer__brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}
.footer__brand-logo svg { width: 30px; height: 30px; color: var(--purple-light); }
.footer__logo-img { height: 32px; width: auto; display: block; }
.footer__brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.footer__brand-name .brand-hub { color: var(--purple-light); }
.footer__tagline { font-size: 0.92rem; max-width: 32ch; line-height: 1.6; color: var(--muted); }
.footer__social { display: flex; gap: 0.6rem; margin-top: 1.3rem; }
.footer__social a {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 10px;
  border: 1px solid var(--line-soft);
  color: var(--ink-2);
  transition: var(--transition);
}
.footer__social a:hover { border-color: var(--purple); color: var(--purple-light); transform: translateY(-2px); }
.footer__social svg { width: 18px; height: 18px; }

.footer__col-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 1.1rem;
}
.footer__links { display: grid; gap: 0.7rem; }
.footer__links a {
  font-size: 0.92rem;
  color: var(--muted);
  transition: color 0.2s ease, padding-left 0.2s ease;
  width: fit-content;
}
.footer__links a:hover { color: var(--purple-light); padding-left: 4px; }

.footer__contact-line {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.7rem;
}
.footer__contact-line svg { width: 17px; height: 17px; color: var(--purple-light); flex-shrink: 0; }

.footer__bottom {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.6rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.84rem;
  color: var(--muted);
}
.footer__bottom .brand-hub { color: var(--purple-light); }

@media (max-width: 860px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 520px) {
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; }
}