/* ============================================================
   ESTÁNDAR INGENIEROS — Footer
   ============================================================ */

.site-footer {
  background: var(--color-bg-footer);
  color: rgba(255,255,255,0.72);
  position: relative;
  overflow: hidden;
}

/* Decorative top border gradient */
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-red) 50%, var(--color-orange) 100%);
}

/* ── Footer Main Body ──────────────────────────────────────── */
.footer-body {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-10);
    align-items: start;
  }
}

/* ── Footer Brand Column ───────────────────────────────────── */
.footer-brand__logo {
  height: 80px;
  width: auto;
  margin-bottom: var(--space-5);
  filter: brightness(1.1);
}

.footer-brand__tagline {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.60);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.10);
  transition: all var(--transition-base);
  color: rgba(255,255,255,0.6);
}

.footer-social__link:hover {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--color-white);
  transform: translateY(-3px);
}

.footer-social__link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ── Footer Columns ────────────────────────────────────────── */
.footer-col__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-5);
  position: relative;
  padding-bottom: var(--space-3);
}

.footer-col__title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--color-orange);
  border-radius: var(--radius-full);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.60);
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-link:hover {
  color: var(--color-orange);
  padding-left: var(--space-1);
}

/* ── Footer Contact Column ─────────────────────────────────── */
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-contact-item:last-child {
  margin-bottom: 0;
}

.footer-contact-item__icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: rgba(243,146,0,0.12);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.footer-contact-item__icon svg {
  width: 16px;
  height: 16px;
  fill: var(--color-orange);
}

.footer-contact-item__label {
  display: block;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.40);
  font-weight: var(--weight-medium);
  margin-bottom: 2px;
}

.footer-contact-item__value {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.80);
  text-decoration: none;
  font-weight: var(--weight-medium);
  transition: color var(--transition-fast);
}

.footer-contact-item__value:hover {
  color: var(--color-orange);
}

/* ── Footer Map ────────────────────────────────────────────── */
.footer-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: var(--space-4);
  border: 1px solid rgba(255,255,255,0.08);
}

.footer-map iframe {
  display: block;
  width: 100%;
  height: 140px;
  border: none;
  filter: grayscale(40%) contrast(0.9);
  transition: filter var(--transition-base);
}

.footer-map:hover iframe {
  filter: grayscale(0%) contrast(1);
}

/* ── Footer Bottom Bar ─────────────────────────────────────── */
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-block: var(--space-6);
}

.footer-bottom__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-bottom__copy {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.40);
}

.footer-bottom__copy strong {
  color: rgba(255,255,255,0.65);
  font-weight: var(--weight-semibold);
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-1) var(--space-4);
}

.footer-legal-link {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.40);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal-link:hover {
  color: var(--color-orange);
}

.footer-legal-sep {
  color: rgba(255,255,255,0.15);
}

/* ── Footer CTA Strip ──────────────────────────────────────── */
.footer-cta-strip {
  background: linear-gradient(90deg, var(--color-orange) 0%, #E07800 100%);
  padding-block: var(--space-8);
}

.footer-cta-strip__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-cta-strip__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-cta-strip__text {
  font-size: clamp(var(--text-base), 2vw, var(--text-xl));
  font-weight: var(--weight-bold);
  color: var(--color-white);
  line-height: var(--leading-snug);
}

.footer-cta-strip__text span {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-regular);
  color: rgba(255,255,255,0.80);
  margin-top: var(--space-1);
}

.footer-cta-strip__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  flex-shrink: 0;
}