:root{
  --gf-green:#33e16f;
}

/* FOOTER chuẩn GF */
.gf-footer{padding:34px 0 46px}
.gf-footer-box{
  position:relative;
  background:#0b0d10;
  color:#eef2f7;
  border-radius:28px;
  padding:26px;
  box-shadow:0 20px 60px rgba(0,0,0,.25);
  overflow:hidden;

  display:grid;
  grid-template-columns: 1.2fr 1.3fr auto;
  gap:22px;
  align-items:start;
}
.gf-footer-box:before{
  content:"";
  position:absolute;inset:-200px;
  background:radial-gradient(600px 420px at 20% 10%, rgba(51,225,111,.16), transparent 60%);
  pointer-events:none;
}
.gf-footer-left,.gf-footer-cols,.gf-footer-social{position:relative;z-index:1}

.gf-footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.gf-footer-logo{width:44px;height:44px;object-fit:contain}
.gf-footer-name{font-weight:900}
.gf-footer-sub{font-size:12px;color:rgba(238,242,247,.70)}

.gf-footer-company .ttl{font-weight:900;margin:12px 0 6px}
.gf-footer-company .muted{color:rgba(238,242,247,.72);font-size:13px;line-height:1.55}
.gf-footer-copy{margin-top:18px;color:rgba(238,242,247,.70);font-size:13px}

.gf-footer-cols{
  display:grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap:22px;
}
.gf-footer-cols .h{font-weight:900;margin-bottom:10px}
.gf-footer-cols a{
  display:block;
  color:rgba(238,242,247,.75);
  text-decoration:none;
  margin:8px 0;
}
.gf-footer-cols a:hover{color:#fff}
.gf-footer-cols .contact{color:rgba(238,242,247,.80);font-size:13px;line-height:1.7}
.gf-footer-cols .green{color:var(--gf-green);font-weight:900}

.gf-footer-social{
  display:flex;
  flex-direction:column;
  gap:10px;
  align-items:center;
  justify-content:center;
}
.gf-footer-social a{
  width:40px;height:40px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(51,225,111,.14);
  border:1px solid rgba(51,225,111,.30);
  color:#d7ffe8;text-decoration:none;font-weight:900;
}

/* Responsive */
@media (max-width: 920px){
  .gf-footer-box{grid-template-columns:1fr;gap:18px}
  .gf-footer-cols{grid-template-columns:1fr 1fr;gap:18px}
  .gf-footer-social{flex-direction:row;justify-content:flex-start}
}
@media (max-width: 520px){
  /* mobile: footer phẳng */
  .gf-footer{padding:0}
  .gf-footer-box{border-radius:0;padding:20px}
  .gf-footer-cols{grid-template-columns:1fr}
}