/* 
 * Footer Component
 * Clean, responsive footer layout
 */

/* ===== BASE FOOTER ===== */
#footer {
  background: var(--color-primary);
  color: var(--text-light);
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

#footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-secondary),
    transparent
  );
}

/* ===== LAYOUT ===== */
.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}
.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

/* ===== BRAND SECTION ===== */
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  text-align: center;
}
.footer-logo {
  height: 5.3rem;
  width: auto;
  filter: brightness(0) invert(1);
}
.footer-description {
  color: var(--color-gray-300);
  line-height: var(--lh-normal);
  max-width: 53ch;
}

/* ===== SECTION HEADERS ===== */
.footer-section h4 {
  margin: 0 0 var(--spacing-lg);
  color: var(--text-light);
  position: relative;
  padding-bottom: var(--spacing-sm);
  text-align: center;
  line-height: var(--lh-tight);
}
.footer-section h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 30px;
  height: 2px;
  transform: translateX(-50%);
  background: var(--color-secondary);
}

/* ===== LINKS ===== */
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding: 0;
  margin: 0;
  align-items: center;
}
.footer-links a {
  color: var(--color-gray-100);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-secondary);
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

/* ===== CONTACT INFO ===== */
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-gray-100);
  text-align: center;
  line-height: var(--lh-normal);
  font-size: var(--fs-sm);
}
.contact-item a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.contact-item i,
.contact-item svg {
  color: var(--color-secondary);
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

/* ===== BOTTOM BAR ===== */
.footer-bottom {
  border-top: 1px solid var(--color-primary-light);
  padding-top: var(--spacing-lg);
  text-align: center;
}
.copyright {
  opacity: 0.78;
  font-size: var(--fs-xs);
  color: var(--color-gray-100);
}

/* ===== RESPONSIVE ===== */
@media (min-width: 768px) {
  #footer {
    padding: var(--spacing-4xl) 0 var(--spacing-2xl);
  }
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr;
  }
  .footer-brand {
    text-align: left;
    align-items: flex-start;
  }
  .footer-section h4 {
    text-align: left;
  }
  .footer-section h4::after {
    left: 0;
    transform: none;
  }
  .footer-links {
    align-items: flex-start;
  }
  .footer-contact {
    align-items: flex-start;
  }
}

@media (min-width: 1024px) {
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}