.site-footer{
  background:#0B5ED7;            /* xanh dương chủ đạo */
  color:#EAF2FF;
  padding:54px 0 18px;
}

.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr 1.6fr 1fr; /* 3 cột dọc */
  gap:28px;
  align-items:start;
}

.footer-brand{
  font-size:20px;
  font-weight:800;
  color:#FFFFFF;
  margin-bottom:10px;
}

.footer-title{
  font-size:14px;
  font-weight:800;
  letter-spacing:.3px;
  text-transform:uppercase;
  color:#FFFFFF;
  margin-bottom:10px;
}

.footer-text{
  margin:0 0 12px;
  line-height:1.6;
  color:#EAF2FF;
  opacity:.95;
}

.footer-list{
  list-style:none;
  padding:0;
  margin:14px 0 0;
}
.footer-list li{
  margin:8px 0;
  color:#EAF2FF;
}
.footer-list li span{
  opacity:.9;
}
.site-footer a{
  color:#FFFFFF;
  text-decoration:none;
  border-bottom:1px dashed rgba(255,255,255,.35);
}
.site-footer a:hover{
  border-bottom-color: rgba(255,255,255,.9);
}

.footer-links{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{
  margin:10px 0;
}
.footer-links a{
  border-bottom:1px dashed rgba(255,255,255,.35);
}

.footer-social{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.social-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 12px;
  border-radius:12px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;
  text-decoration:none;
  transition:transform .15s ease, background .15s ease, border-color .15s ease;
  border-bottom:none !important;
}
.social-btn:hover{
  transform:translateY(-2px);
  background:rgba(255,255,255,.18);
  border-color:rgba(255,255,255,.35);
}

.footer-bottom{
  margin-top:26px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.18);
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  color:#EAF2FF;
  opacity:.92;
  font-size:13px;
}
.footer-bottom .sep{ opacity:.6; }

/* Responsive */
@media (max-width: 992px){
  .footer-grid{
    grid-template-columns:1fr;  /* xếp dọc 3 cột */
    gap:18px;
  }
  .footer-bottom{ justify-content:flex-start; }
}