/* ============================================================
   footer.css — Site footer (shared by app.php, login.php, and
   all static pages). Matches the Fretly design tokens in site.css.
   ============================================================ */

.site-footer {
  /* Own stacking context: editor surfaces (chart/suite layers) sometimes
     bleed past their container with z-index:auto and silently swallow
     footer clicks. Keep well below modal/popover tiers (10000+). 2026-07-06 */
  position: relative;
  z-index: 30;
  margin-top: var(--space-3xl);
  background: var(--surface-2);
  border-top: var(--border-w) solid var(--border);
  color: var(--text-2);
  font-size: var(--font-base);
  line-height: var(--leading-normal);
}

.site-footer-inner {
  max-width: 78.5714rem;       /* 1100 px @ 14px rem */
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
}

.site-footer-col h4 {
  margin: 0 0 var(--space-md);
  font-size: var(--font-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text);
}

.site-footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.site-footer-col a {
  color: var(--text-2);
  text-decoration: none;
  transition: color var(--t-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.site-footer-col a:hover { color: var(--accent); }

.site-footer-brand .navbar-brand {
  display: inline-block;
  margin-bottom: var(--space-md);
  font-size: var(--font-xl);
  font-weight: var(--weight-bold);
  color: var(--text);
  text-decoration: none;
}
.site-footer-brand .navbar-brand span { color: var(--accent); }

.site-footer-tagline {
  margin: 0;
  max-width: 28ch;
  color: var(--text-3);
}

.site-footer-socials a svg {
  flex-shrink: 0;
  transition: transform var(--t-fast);
}
.site-footer-socials a:hover svg { transform: translateY(-1px); }

.site-footer-bottom {
  max-width: 78.5714rem;       /* 1100 px @ 14px rem */
  margin: 0 auto;
  padding: var(--space-lg) var(--space-xl) var(--space-xl);
  border-top: var(--border-w) solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  color: var(--text-3);
  font-size: var(--font-sm);
}

.site-footer-bottom a {
  color: var(--text-3);
  text-decoration: none;
}
.site-footer-bottom a:hover { color: var(--accent); }

/* Responsive — collapse to one column on small screens */
@media (max-width: 720px) {
  .site-footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 28px 24px;
    padding: 32px 20px 20px;
  }
  .site-footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 480px) {
  .site-footer-inner { grid-template-columns: 1fr; }
  .site-footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 20px 24px;
  }
}