/* ============================================================
   TECHCELER — footer.css  (shared)
   ============================================================ */

.footer {
  position: relative;
  background: var(--bg-dark);
  color: #fff;
  padding-top: 4px;
}
.footer::before {
  content: "";
  display: block;
  height: 2px;
  width: 100%;
  background: var(--gradient);
}

.footer__inner {
  max-width: var(--maxw-wide);
  margin-inline: auto;
  padding: clamp(56px, 7vw, 84px) clamp(20px, 5vw, 40px) 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer__brand .brand__word {
  color: #fff;
}
.footer__tagline {
  margin-top: 18px;
  max-width: 300px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.96rem;
  line-height: 1.7;
}
.footer__brand .serif {
  display: block;
  margin-top: 18px;
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
}

.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 18px;
}
.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer__col a {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.95rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer__col a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer__bottom {
  margin-top: clamp(48px, 6vw, 72px);
  padding: 26px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.55);
}
.footer__bottom a:hover {
  color: #fff;
}
.footer__social {
  display: flex;
  gap: 10px;
}
.footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.7);
  transition: all 0.2s ease;
}
.footer__social a:hover {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
  transform: translateY(-2px);
}
.footer__social svg {
  width: 18px;
  height: 18px;
}

@media (max-width: 860px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer__brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 520px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}