:root{
  --bg:#0b0b0b;
  --ink:#e5e7eb;
  --muted:#9ca3af;
  --line:rgba(255,255,255,0.08);
  --blue:#2563eb;
  --card:#111317;
}

/* Base */
.site-footer{
  color:var(--ink);
  background:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px),
    var(--bg);
  background-size:40px 40px;
  border-top:1px solid var(--line);
}

.footer-inner{
  max-width:1200px;
  margin:0 auto;
  padding:36px 20px 22px;
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:28px;
}

.brand-col{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:10px;
}
.brand-logo{height:36px;width:auto}
.brand-name{
  font-size:14px;
  letter-spacing:.12em;
  font-weight:700;
  color:#ffffff;
}

.contact{
  font-style:normal;
  font-size:14px;
  color:var(--muted);
}
.contact p{margin:8px 0}
.contact-link{
  color:var(--ink);
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:2px 0;
}
.contact-link i{width:16px;height:16px}
.contact-link:hover{color:#ffffff}

.social{
  margin-top:14px;
}
.social-title{
  font-size:12px;
  color:var(--muted);
  letter-spacing:.06em;
}
.social-row{
  display:flex;
  gap:10px;
  margin-top:8px;
}
.social-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border-radius:10px;
  color:#fff;
  background:#151821;
  border:1px solid var(--line);
  transition:transform .16s, background .16s, border-color .16s;
}
.social-btn i{width:18px;height:18px}
.social-btn:hover{
  transform:translateY(-2px);
  background:#1b2130;
  border-color:rgba(37,99,235,.35);
}

/* Column links */
.col-title{
  font-size:14px;
  font-weight:700;
  color:#ffffff;
  margin:6px 0 10px;
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.footer-links a{
  color:var(--muted);
  text-decoration:none;
  font-size:14px;
  padding:4px 0;
  transition:color .15s, transform .15s;
}
.footer-links a:hover{
  color:#ffffff;
  transform:translateX(2px);
}

/* Bottom bar */
.footer-bottom{
  border-top:1px solid var(--line);
  margin-top:20px;
  padding:12px 20px 18px;
  text-align:center;
  color:var(--muted);
  font-size:13px;
}

/* Responsive */
@media (max-width: 1024px){
  .footer-inner{
    grid-template-columns:1.5fr 1fr 1fr;
  }
}
@media (max-width: 780px){
  .footer-inner{
    grid-template-columns:1fr 1fr;
  }
  .brand-col{
    grid-column:1 / -1;
  }
}
@media (max-width: 520px){
  .footer-inner{
    grid-template-columns:1fr;
    gap:18px;
  }
  .brand{
    gap:12px;
  }
  .brand-name{
    font-size:13px;
  }
  .footer-bottom{
    font-size:12px;
  }
}