/**
 * @file footer.css
 * @description Component-specific BEM styles for the Footer section.
 * @version 1.0.0
 */

.sdi-footer {
  padding: var(--sdi-spacing-20) var(--sdi-spacing-8);
  border-top: 1px solid var(--sdi-color-border);
  background-color: var(--sdi-color-white);
}

@media (min-width: 768px) {
  .sdi-footer {
    padding: var(--sdi-spacing-20) var(--sdi-spacing-24);
  }
}

.sdi-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sdi-spacing-16);
  margin-bottom: var(--sdi-spacing-24);
}

@media (min-width: 768px) {
  .sdi-footer__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.sdi-footer__brand {
  grid-column: span 1;
}

@media (min-width: 768px) {
  .sdi-footer__brand {
    grid-column: span 2;
  }
}

.sdi-footer__logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  margin-bottom: var(--sdi-spacing-6);
}

.sdi-footer__tagline {
  font-size: 0.875rem;
  opacity: 0.6;
  line-height: 1.625;
  max-width: 20rem;
}

.sdi-footer__section-title {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-weight: 700;
  margin-bottom: var(--sdi-spacing-8);
}

.sdi-footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--sdi-spacing-4);
  font-size: 0.75rem;
}

.sdi-footer__link {
  opacity: 0.6;
  transition: all var(--sdi-transition-fast);
}

.sdi-footer__link:hover {
  opacity: 1;
  color: var(--sdi-color-accent);
}

.sdi-footer__bottom {
  padding-top: var(--sdi-spacing-12);
  border-top: 1px solid rgba(0, 103, 127, 0.05);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  gap: var(--sdi-spacing-6);
  font-size: 0.5625rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  opacity: 0.4;
  font-weight: 700;
}

@media (min-width: 768px) {
  .sdi-footer__bottom {
    flex-direction: row;
  }
}

.sdi-footer__legal {
  display: flex;
  gap: var(--sdi-spacing-8);
}