footer {
  background: rgba(4,12,16,0.98);
  border-top: 1px solid rgba(0,201,167,0.15);
  padding: 60px 28px 0;
  font-family: 'Exo 2', sans-serif;
}

.footer-inner {
  max-width: 1280px; margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand { display:flex; flex-direction:column; gap:12px; }
.footer-logo { width:48px; height:48px; object-fit:contain; filter:drop-shadow(0 0 6px rgba(0,180,216,0.4)); }
.footer-name {
  font-family:'Rajdhani',sans-serif; font-size:1.5rem; font-weight:700; letter-spacing:2px;
  background:linear-gradient(90deg,#00C9A7,#00B4D8);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.footer-tagline { color:rgba(160,210,205,0.6); font-size:0.875rem; line-height:1.6; max-width:240px; }

.footer-links { display:flex; flex-direction:column; gap:10px; }
.footer-links h4, .footer-contact h4 {
  font-family:'Rajdhani',sans-serif; font-size:1rem; font-weight:600;
  letter-spacing:1px; color:#00C9A7; margin-bottom:6px; text-transform:uppercase;
}
.footer-links a {
  color:rgba(180,220,215,0.7); text-decoration:none; font-size:0.875rem;
  transition:color 0.2s; width:fit-content;
}
.footer-links a:hover { color:#00C9A7; }

.footer-contact { display:flex; flex-direction:column; gap:10px; }
.footer-contact p { color:rgba(180,220,215,0.7); font-size:0.875rem; }
.footer-contact a { color:rgba(180,220,215,0.7); text-decoration:none; transition:color 0.2s; }
.footer-contact a:hover { color:#00C9A7; }

.footer-bottom {
  border-top: 1px solid rgba(0,201,167,0.1);
  max-width:1280px; margin:0 auto;
  padding: 20px 0;
  text-align:center;
  color:rgba(140,180,175,0.45); font-size:0.8rem;
}

@media(max-width:900px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap:32px; }
}
@media(max-width:520px) {
  .footer-inner { grid-template-columns: 1fr; gap:28px; }
  footer { padding: 40px 20px 0; }
}
.btn-warranty {
  display:inline-flex; align-items:center; gap:8px;
  background:linear-gradient(135deg,#00C9A7,#00B4D8);
  color:#fff; font-family:'Rajdhani',sans-serif;
  font-size:0.85rem; font-weight:700; letter-spacing:1.5px;
  text-transform:uppercase; border:none; border-radius:6px;
  padding:8px 16px; cursor:pointer; margin-top:8px;
  box-shadow:0 0 14px rgba(0,201,167,0.45);
  text-decoration:none;
  transition:box-shadow 0.2s, transform 0.2s;
}
.btn-warranty:hover { box-shadow:0 0 22px rgba(0,180,216,0.65); transform:translateY(-1px); }