/* =========================================================
   FOOTER INSTITUCIONAL DEFINITIVO
   ========================================================= */
.site-footer {
  position: relative;
  background: linear-gradient(180deg, var(--primary) 0%, #061a30 100%);
  color: rgba(255, 255, 255, 0.7);
  padding: 5rem 0 2rem;
  overflow: hidden;
  margin-top: auto; /* Empurra para o fundo em layouts flex */
}

/* Textura decorativa de fundo */
.site-footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(201, 169, 97, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(26, 77, 122, 0.15) 0%, transparent 45%);
  pointer-events: none;
}

/* Faixa dourada superior */
.site-footer__accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--secondary) 20%,
    var(--secondary-dark) 50%,
    var(--secondary) 80%,
    transparent 100%);
  z-index: 2;
}

.site-footer > .container {
  position: relative;
  z-index: 1;
}

/* ---- Grid principal (5 colunas) ---- */
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr 1.1fr 0.9fr 1.3fr;
  gap: 3rem 2.5rem;
  padding-bottom: 3.5rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* ---- Coluna da Marca ---- */
.site-footer__brand {
  max-width: 340px;
}

.site-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.site-footer__logo:hover {
  transform: translateX(4px);
}

.site-footer__logo-mark {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
  color: var(--primary);
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 8px 20px rgba(201, 169, 97, 0.25);
  flex-shrink: 0;
}

.site-footer__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.site-footer__logo-text strong {
  color: var(--white);
  font-family: 'Playfair Display', serif;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.2px;
}

.site-footer__logo-text small {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.72rem;
  letter-spacing: 0.3px;
  margin-top: 3px;
}

.site-footer__about {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
  line-height: 1.7;
  margin: 0 0 1.75rem;
}

/* ---- Redes sociais ---- */
.site-footer__social {
  display: flex;
  gap: 0.6rem;
}

.site-footer__social-link {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
  transition: all 0.3s ease;
}

.site-footer__social-link svg {
  width: 16px;
  height: 16px;
}

.site-footer__social-link:hover {
  background: var(--secondary);
  border-color: var(--secondary);
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(201, 169, 97, 0.3);
}

/* ---- Colunas de links ---- */
.site-footer__column {
  display: flex;
  flex-direction: column;
}

.site-footer__heading {
  position: relative;
  margin: 0 0 1.5rem;
  color: var(--white);
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.2px;
  padding-bottom: 0.85rem;
}

.site-footer__heading::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
}

.site-footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.site-footer__list a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
  line-height: 1.5;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.site-footer__list a::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 50%;
  width: 0;
  height: 1px;
  background: var(--secondary);
  transition: width 0.3s ease;
}

.site-footer__list a:hover {
  color: var(--secondary);
  transform: translateX(12px);
}

.site-footer__list a:hover::before {
  width: 6px;
}

/* Badge de código do curso (MAT/BIO) */
.site-footer__list-badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: rgba(201, 169, 97, 0.15);
  color: var(--secondary);
  border-radius: 4px;
  border: 1px solid rgba(201, 169, 97, 0.25);
}

/* ---- Coluna de Contacto ---- */
.site-footer__column--contact {
  max-width: 280px;
}

.site-footer__contact {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.site-footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.88rem;
  line-height: 1.6;
}

.site-footer__contact-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--secondary);
  margin-top: 3px;
}

.site-footer__contact-item address {
  font-style: normal;
}

.site-footer__contact-item a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.site-footer__contact-item a:hover {
  color: var(--secondary);
}

/* Horário de atendimento */
.site-footer__hours {
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--secondary);
  border-radius: 0 8px 8px 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.site-footer__hours strong {
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.site-footer__hours span {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.78rem;
  line-height: 1.5;
}

/* ---- Barra inferior ---- */
.site-footer__bottom {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: center;
}

.site-footer__bottom-left {
  text-align: left;
}

.site-footer__copyright {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.8rem;
  margin: 0;
  line-height: 1.5;
}

.site-footer__bottom-center {
  text-align: center;
}

.site-footer__back-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 100px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
}

.site-footer__back-top svg {
  width: 14px;
  height: 14px;
  transition: transform 0.3s ease;
}

.site-footer__back-top:hover {
  background: var(--secondary);
  border-color: var(--secondary);
  color: var(--primary);
}

.site-footer__back-top:hover svg {
  transform: translateY(-2px);
}

.site-footer__bottom-right {
  text-align: right;
}

.site-footer__legal {
  display: flex;
  gap: 1.5rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.site-footer__legal a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.78rem;
  text-decoration: none;
  transition: color 0.3s ease;
}

.site-footer__legal a:hover {
  color: var(--secondary);
}

/* =========================================================
   RESPONSIVIDADE — FOOTER
   ========================================================= */
@media (max-width: 1200px) {
  .site-footer__grid {
    grid-template-columns: 1.3fr 1fr 1fr 1.3fr;
    gap: 2.5rem 2rem;
  }
  .site-footer__column--contact {
    grid-column: 1 / -1;
    max-width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem 2rem;
  }
  .site-footer__column--contact .site-footer__heading {
    grid-column: 1 / -1;
  }
}

@media (max-width: 992px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2.5rem 2rem;
  }
  .site-footer__brand {
    grid-column: 1 / -1;
    max-width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .site-footer__about {
    margin-bottom: 0;
  }
  .site-footer__column--contact {
    grid-column: 1 / -1;
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .site-footer {
    padding: 3.5rem 0 1.5rem;
  }
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem 2rem;
    padding-bottom: 2.5rem;
  }
  .site-footer__brand {
    grid-template-columns: 1fr;
  }
  .site-footer__column--contact {
    grid-template-columns: 1fr;
  }
  .site-footer__bottom {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    text-align: center;
  }
  .site-footer__bottom-left,
  .site-footer__bottom-right {
    text-align: center;
  }
  .site-footer__legal {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }
  .site-footer__heading {
    margin-bottom: 1.25rem;
  }
  .site-footer__list a {
    font-size: 0.92rem;
    padding: 0.2rem 0;
  }
  .site-footer__legal {
    flex-direction: column;
    gap: 0.75rem;
  }
  .site-footer__back-top span {
    display: none;
  }
  .site-footer__back-top {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    justify-content: center;
  }
}

/* =========================================================
   ACESSIBILIDADE — FOOTER
   ========================================================= */
.site-footer a:focus-visible,
.site-footer button:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  .site-footer__social-link,
  .site-footer__list a,
  .site-footer__back-top,
  .site-footer__logo,
  .site-footer__contact-item a {
    transition: none !important;
    transform: none !important;
  }
  .site-footer__list a:hover {
    transform: none;
  }
}