/* =========================
   FOOTER
========================= */

.site-footer {
  position: relative;
  background-color: var(--color-surface);
  overflow: hidden;
  margin-top: var(--space-8);
}

/* =========================
   GRID PRINCIPAL
========================= */

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 1fr);
  gap: var(--space-6) var(--space-7);
  padding-block: var(--space-6);
  align-items: start;
}

/* =========================
   BRANDING
========================= */

.site-footer__brand a {
  display: inline-block;
}

.site-footer__brand img,
.site-footer__brand svg {
  display: block;
  width: auto;
  max-width: 200px;
  height: auto;
}

.site-footer__site-name {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xl);
  color: var(--color-heading);
}

/* =========================
   COLUNAS
========================= */

.site-footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__col-heading {
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-heading);
  margin-bottom: var(--space-1);
}

.site-footer__col-heading a {
  color: inherit;
  transition: color var(--transition-fast);
}

.site-footer__col-heading a:hover,
.site-footer__col-heading a:focus-visible {
  color: var(--color-primary);
}

/* =========================
   NAVEGAÇÃO
========================= */

.site-footer__nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.site-footer__nav li {
  margin: 0;
}

/* Item pai com filhos = título não clicável */
.site-footer__nav > .menu-item-has-children > a {
  pointer-events: none;
  cursor: default;
}

/* Item de primeiro nível = heading da coluna */
.site-footer__nav > li > a {
  display: block;
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-heading);
  margin-bottom: var(--space-3);
  transition: color var(--transition-fast);
}

.site-footer__nav > li > a:hover,
.site-footer__nav > li > a:focus-visible {
  color: var(--color-primary);
}

/* Submenu = links regulares */
.site-footer__nav .sub-menu {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__nav .sub-menu li {
  margin: 0;
}

.site-footer__nav .sub-menu a {
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  text-transform: none;
  letter-spacing: normal;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.site-footer__nav .sub-menu a:hover,
.site-footer__nav .sub-menu a:focus-visible {
  color: var(--color-primary);
}

/* Links centrais sem submenu (Mapa, Glossário, Memórias):
   cada item já é topo de nível → recebe espaçamento entre si */
.site-footer__col--links .site-footer__nav > li + li {
  margin-top: var(--space-4);
}

/* =========================
   CONTATO
========================= */

.site-footer__email {
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.site-footer__email:hover,
.site-footer__email:focus-visible {
  color: var(--color-primary);
}

.site-footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.site-footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-pill);
  background-color: var(--color-heading);
  color: var(--color-bg);
  flex-shrink: 0;
  transition:
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.site-footer__social-link svg {
  width: 0.9rem;
  height: 0.9rem;
  fill: currentColor;
  display: block;
}

.site-footer__social-link:hover,
.site-footer__social-link:focus-visible {
  background-color: var(--color-primary);
  transform: translateY(-2px);
}

/* =========================
   BARRA INFERIOR
========================= */

.site-footer__bottom {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-5);
  border-top: 1px solid var(--color-border);
}

.site-footer__copy,
.site-footer__credit {
  font-size: var(--font-size-xs);
  color: var(--color-neutral-600);
}

.site-footer__credit a {
  color: var(--color-neutral-600);
  font-weight: 600;
  text-decoration: none;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.site-footer__credit a:hover,
.site-footer__credit a:focus-visible {
  color: var(--color-primary);
}

/* =========================
   RESPONSIVO — TABLET
========================= */

@media (max-width: 1100px) {
  .site-footer__grid {
    grid-template-columns: 1fr repeat(3, 1fr);
    gap: var(--space-6);
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }
}

/* =========================
   RESPONSIVO — MOBILE
========================= */

@media (max-width: 768px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6) var(--space-5);
  }
}

/* =========================
   ACESSIBILIDADE
========================= */

.site-footer a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .site-footer__social-link,
  .site-footer__nav a,
  .site-footer__email,
  .site-footer__credit a {
    transition-duration: 0.01ms !important;
  }
}