/* ============================================================
   CALVION TECHNOLOGIES
   footer.css — Footer Component
   ============================================================ */

.footer {
  background-color: var(--color-near-black);
  color: var(--color-text-inverse);
  padding-top: var(--space-20);
  padding-bottom: 0;
}

/* ── Footer Grid ── */
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid var(--color-border-inverse);
}

/* ── Brand Column ── */
.footer__brand {
  max-width: 300px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  margin-bottom: var(--space-6);
}

.footer__logo-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.12em;
  color: var(--color-white);
  line-height: 1;
}

.footer__logo-sub {
  font-size: 0.625rem;
  font-weight: var(--weight-medium);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1;
  margin-top: 2px;
}

.footer__tagline {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: var(--space-6);
}

.footer__certifications {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.footer__cert-badge {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
}

/* ── Column Headings ── */
.footer__col-title {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: var(--space-6);
  display: block;
}

/* ── Nav Links ── */
.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-regular);
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: color var(--transition-fast);
  line-height: var(--leading-snug);
}

.footer__link:hover {
  color: var(--color-white);
}

/* ── Contact Info ── */
.footer__contact-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer__contact-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.footer__contact-icon {
  flex-shrink: 0;
  margin-top: 1px;
  opacity: 0.4;
}

.footer__contact-text {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.55);
  line-height: var(--leading-snug);
}

.footer__contact-link {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__contact-link:hover {
  color: var(--color-white);
}

/* ── Bottom Bar ── */
.footer__bottom {
  padding: var(--space-6) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer__copyright {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.28);
  letter-spacing: 0.01em;
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer__bottom-link {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.28);
  text-decoration: none;
  transition: color var(--transition-fast);
  letter-spacing: 0.01em;
}

.footer__bottom-link:hover {
  color: rgba(255, 255, 255, 0.6);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }
  .footer__brand {
    grid-column: 1 / -1;
    max-width: 100%;
  }
}

@media (max-width: 640px) {
  .footer {
    padding-top: var(--space-16);
  }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .footer__brand {
    grid-column: auto;
  }
  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  .footer__bottom-links {
    gap: var(--space-4);
  }
  .footer__legal-ids {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  letter-spacing: 0.02em;
  }
}

.footer__legal-ids {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.footer__legal-divider {
  color: rgba(255, 255, 255, 0.15);
}

@media (max-width: 480px) {
  .footer__legal-divider {
    display: none;
  }
  .footer__legal-ids {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }
}

/* Social Media Icons */
.footer__social {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

.footer__social-icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background-color: transparent;
  overflow: hidden;
  transition: background-color 0.25s ease;
}

.footer__social-icon svg {
  position: relative;
  z-index: 1;
  width: 34px;
  height: 34px;
}

.footer__social-icon-path {
  transition: fill 0.25s ease;
}

/* Instagram */
.footer__social-icon--instagram .footer__social-icon-path {
  fill: url(#footerInstagramGradient);
}
.footer__social-icon--instagram::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, #feda75, #fa7e1e, #d62976, #962fbf, #4f5bd5);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.footer__social-icon--instagram:hover::before {
  opacity: 1;
}
.footer__social-icon--instagram:hover .footer__social-icon-path {
  fill: #ffffff;
}

/* Facebook */
.footer__social-icon--facebook .footer__social-icon-path {
  fill: #1877f2;
}
.footer__social-icon--facebook:hover {
  background-color: #1877f2;
}
.footer__social-icon--facebook:hover .footer__social-icon-path {
  fill: #ffffff;
}

/* WhatsApp */
.footer__social-icon--whatsapp .footer__social-icon-path {
  fill: #25d366;
}
.footer__social-icon--whatsapp:hover {
  background-color: #25d366;
}
.footer__social-icon--whatsapp:hover .footer__social-icon-path {
  fill: #ffffff;
}

/* LinkedIn */
.footer__social-icon--linkedin .footer__social-icon-path {
  fill: #0a66c2;
}
.footer__social-icon--linkedin:hover {
  background-color: #0a66c2;
}
.footer__social-icon--linkedin:hover .footer__social-icon-path {
  fill: #ffffff;
}