.footer {
  background: var(--clr-bg-mid);
  border-top: 1px solid var(--clr-border);
  padding: var(--sp-20) 0 0;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--clr-accent-blue),
    var(--clr-accent-green),
    transparent
  );
}
.footer__main {
  display: grid;
  grid-template-columns: auto 1.5fr 1fr 1fr 1fr;
  gap: var(--sp-12);
  padding-bottom: var(--sp-16);
  border-bottom: 1px solid var(--clr-border);
}
@media (max-width: 1024px) {
  .footer__main {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-10);
  }
}
@media (max-width: 640px) {
  .footer__main {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-8);
  }
  .footer__brand {
    grid-column: 1/-1;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .footer__info {
    align-items: center;
  }
  .footer__tagline {
    text-align: center;
  }
  .footer__social {
    justify-content: center;
  }
  .footer__main > div:nth-child(2) {
    grid-column: 1/-1;
  }
  .footer__main > div:nth-child(3),
  .footer__main > div:nth-child(4) {
    text-align: center;
  }
  .footer__main > div:nth-child(3) .footer__links,
  .footer__main > div:nth-child(4) .footer__links {
    display: inline-flex;
    text-align: left;
  }
  .footer__main > div:nth-child(5) {
    grid-column: 1/-1;
    text-align: center;
  }
  .footer__main > div:nth-child(5) .footer__contact-items {
    display: inline-flex;
    text-align: left;
  }
}
.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}
.footer__logo-mark {
  width: 44px;
  height: 44px;
  background: var(--clr-accent-blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: var(--fw-black);
  font-size: var(--fs-xl);
  color: #fff;
  letter-spacing: -0.05em;
}
.footer__logo-name {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--fs-md);
  color: var(--clr-text-primary);
}
.footer__logo-sub {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.footer__info {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}
.footer__tagline {
  font-size: var(--fs-sm);
  color: var(--clr-text-secondary);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--sp-6);
}
.footer__cert {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  background: rgba(8, 178, 25, 0.08);
  border: 1px solid rgba(8, 178, 25, 0.2);
  border-radius: var(--radius-md);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--clr-accent-green);
  letter-spacing: 0.04em;
  margin-bottom: var(--sp-6);
}
.footer__cert-icon {
  font-size: 14px;
}
.footer__social {
  display: flex;
  gap: var(--sp-3);
}
.footer__social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  font-size: 15px;
  transition: all var(--transition-base);
}
.footer__social-link:hover {
  background: rgba(30, 28, 206, 0.08);
  border-color: var(--clr-border-glow);
  color: var(--clr-accent-blue);
  transform: translateY(-2px);
}
.footer__col-title {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--clr-text-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--sp-5);
}
.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.footer__links li {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.footer__links li::before {
  content: "";
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--clr-text-muted);
  flex-shrink: 0;
}
.footer__link {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  transition: color var(--transition-fast);
}
.footer__link:hover {
  color: var(--clr-accent-blue-lt);
}
.footer__contact-items {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}
.footer__contact-item {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
}
.footer__contact-icon {
  width: 32px;
  height: 32px;
  background: rgba(30, 28, 206, 0.07);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 2px;
}
.footer__contact-text {
  font-size: var(--fs-sm);
  color: var(--clr-text-secondary);
  line-height: var(--lh-relaxed);
  white-space: nowrap;
}
.footer__contact-text a {
  color: var(--clr-text-secondary);
  transition: color var(--transition-fast);
}
.footer__contact-text a:hover {
  color: var(--clr-accent-blue-lt);
}
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: var(--sp-6) 0;
  gap: var(--sp-4);
}
@media (max-width: 640px) {
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}
.footer__copyright {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
}
.footer__legal {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}
.footer__legal-link {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  transition: color var(--transition-fast);
}
.footer__legal-link:hover {
  color: var(--clr-accent-blue-lt);
}
.footer__gst {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.footer__signature {
  width: 100%;
  text-align: center;
  margin-top: var(--sp-2);
  font-size: var(--sp-3);
  opacity: 0.6;
}
.footer__signature a {
  color: var(--clr-text-muted);
  transition: color var(--transition-fast);
  text-decoration: none;
}
.footer__signature a:hover {
  color: var(--clr-accent-blue-lt);
}