/* FOOTER PRO MODERNO */
.site-footer {
  background: #021c36; /* más oscuro que todo lo demás */
  color: white;
  padding: 70px 20px 30px;
  font-family: 'Segoe UI', Arial, sans-serif;
  position: relative;
  overflow: hidden;
  animation: fadeUpFooter 1s ease forwards;
  bottom: 0;
}

@keyframes fadeUpFooter {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* glow decorativo moderno */
.site-footer::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(2,139,180,0.25) 0%, transparent 70%);
  top: -150px;
  right: -150px;
  filter: blur(80px);
}

/* separación REAL */
.site-footer::after {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  height: 1px;
  background: rgba(255,255,255,0.1);
}

/* layout */
.footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  max-width: 1200px;
  margin: auto;
  gap: 40px;
  position: relative;
  z-index: 2;
}

.footer-section {
  flex: 1 1 220px;
  transition: transform 0.3s ease;
}

.footer-section .social a::before {
  content: "";
  position: absolute;
  width: 120%;
  height: 120%;
  background: radial-gradient(circle, rgba(255,255,255,0.3), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.footer-section .social a:hover::before {
  opacity: 1;
}

/* TEXTO CON EFECTO SUAVE */
.footer-section p {
  transition: color 0.3s ease;
}

.footer-section p:hover {
  color: #ffffff;
}

/* DETALLE EXTRA: BRILLO EN EL BORDE */
.site-footer {
  box-shadow: 0 -10px 40px rgba(2,139,180,0.2);
}

/* títulos */
.footer-section h3 {
  margin-bottom: 20px;
  font-size: 18px;
  font-weight: 600;
  color: #ffffff;
}

/* línea moderna */
.footer-section h3::after {
  content: "";
  display: block;
  width: 30px;
  height: 3px;
  background: #028bb4;
  margin-top: 8px;
  border-radius: 10px;
}

/* texto */
.footer-section p,
.footer-section a,
.footer-section li {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.25s ease;
  margin-top: 10px;
}

.footer-section a {
  position: relative;
}

.footer-section a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0%;
  height: 2px;
  background: #028bb4;
  transition: width 0.3s ease;
}

.footer-section a:hover::after {
  width: 100%;
}

/* hover moderno */
.footer-section a:hover {
  color: #028bb4;
  transform: translateX(6px);
}

/* listas */
.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section ul li {
  margin-bottom: 10px;
}

/* redes PRO */
.footer-section .social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-right: 10px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  color: white;
  font-size: 16px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.footer-section .social a:hover {
  background: #028bb4;
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 10px 25px rgba(2,139,180,0.4);
}

/* bottom */
.footer-bottom {
  text-align: center;
  margin-top: 50px;
  padding-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  border-top: 1px solid rgba(255,255,255,0.08);
  position: relative;
  z-index: 2;
}

/* responsive */
@media (max-width: 768px) {
  .footer-container {
    flex-direction: column;
    text-align: center;
  }

  .footer-section h3::after {
    margin-left: auto;
    margin-right: auto;
  }
}