/* Modern Footer (3 columns) */
:root {
  --footer-bg: #111827;       /* fondo */
  --footer-text: #ffffff;     /* texto */
  --footer-muted: #d1d5db;    /* gris claro para detalles */
  --footer-accent: #0ea5e9;   /* celeste primario (sky-500) */
}

.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding-top: 3rem;
  padding-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.site-footer .container {
  max-width: 1140px;
}

.site-footer a {
  color: var(--footer-text);
  text-decoration: none;
  opacity: .9;
  transition: opacity .2s ease, transform .2s ease, color .2s ease;
}

.site-footer a:hover {
  color: var(--footer-accent);
  opacity: 1;
  transform: translateX(2px);
}

.site-footer .brand-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: .75rem;
}

.site-footer .brand-logo {
  width: 44px;
  height: 44px;
  border-radius: .75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(100% 100% at 30% 20%, #22d3ee 0%, #0ea5e9 45%, #0369a1 100%);
  box-shadow: 0 10px 24px rgba(14,165,233,.25);
}

.site-footer .brand-logo img {
  max-width: 28px;
  max-height: 28px;
  filter: brightness(0) invert(1); /* si el logo tiene color, se verá blanco */
}

.site-footer .brand-name {
  font-weight: 400;
  font-size: 1.125rem;
  margin: 0;
}

.site-footer .brand-caption {
  color: var(--footer-muted);
  margin: 0 0 .75rem 0;
  font-size: .95rem;
}

.site-footer .links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer .links li + li {
  margin-top: .5rem;
}

.site-footer .links a {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 600;
}

.site-footer .links a .dot {
  width: .45rem;
  height: .45rem;
  background: var(--footer-accent);
  border-radius: 999px;
  opacity: .85;
}

.site-footer .contact .item {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  margin-bottom: .6rem;
  color: var(--footer-text);
}

.site-footer .contact .item i,
.site-footer .contact .item svg {
  color: var(--footer-accent);  /* iconos celeste */
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: .15rem;
}

.site-footer .contact .label {
  display: block;
  font-weight: 700;
}

.site-footer .contact .value {
  color: var(--footer-muted);
}

.site-footer .bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 2rem;
  padding-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}

.site-footer small {
  color: var(--footer-muted);
}

/* Responsive grid (Bootstrap already present; fallback here) */
@media (min-width: 768px) {
  .site-footer .cols {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1.2fr; /* 3 columnas */
    gap: 2rem;
  }
}
@media (max-width: 767.98px) {
  .site-footer .cols > * {
    margin-bottom: 1.25rem;
  }
}

.footer-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.footer-center {
  text-align: center;
  padding-top: 0.5rem;
}

.footer-center small {
  color: #d1d5db; /* gris suave */
  font-size: 0.875rem;
}