/**
 * TripMura Design System — Luxury Footer Styles (Practical UI Compliance)
 */

.site-footer {
  margin-top: clamp(60px, 8vw, 100px);
  background: var(--bg-card);
  border-top: 1px solid var(--border-light);
  padding: clamp(48px, 6vw, 80px) 0 32px;
  position: relative;
  z-index: var(--z-elevate);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(32px, 4vw, 56px);
  margin-bottom: clamp(40px, 5vw, 64px);
}

/* Column 1: Brand & Mission */
.footer-brand-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-logo-link {
  display: inline-block;
  margin-bottom: 14px;
  text-decoration: none;
}

.footer-brand-lockup {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-symbol-img {
  height: 32px;
  width: 32px;
  object-fit: contain;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.footer-logo-link:hover .footer-symbol-img {
  transform: scale(1.05);
}

.footer-wordmark {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text-primary);
  line-height: 1;
}

.footer-tagline {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-azure);
  margin-bottom: 10px;
}

.footer-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: var(--line-height-normal);
  max-width: 320px;
  margin-bottom: 20px;
}

.footer-copyright {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

.footer-credit {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.credit-link {
  color: var(--primary-azure);
  font-weight: 700;
  text-decoration: none;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
}

.credit-link:hover {
  color: var(--primary-azure-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Columns 2, 3, 4: Navigation Columns */
.footer-nav-col {
  display: flex;
  flex-direction: column;
}

.footer-col-title {
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--text-primary);
  margin-bottom: 18px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.footer-link:hover {
  color: var(--primary-azure);
  transform: translateX(2px);
}

/* Clean Centered Bottom Legal & Credit Row */
.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  text-align: center;
}

/* ==========================================================================
   Responsive Footer Layout
   ========================================================================== */
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .footer-brand-col {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 36px;
  }
  
  .footer-brand-col {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    padding-top: 20px;
    text-align: center;
  }
}