/* Sole site sponsor. Kept local to the homepage's title and sponsor panel. */
main > .title { margin-bottom:20px; }
.site-sponsor {
  position:relative; overflow:hidden;
  display:flex; flex-direction:column; align-items:center; gap:12px;
  width:min(100%, 420px); margin:0 0 28px; padding:16px 20px;
  border:1px solid rgba(85,180,113,.30); border-radius:6px;
  background:linear-gradient(155deg,#282d33,#1c1f23);
  color:var(--white); text-decoration:none;
  font-family:'Barlow Condensed',system-ui,sans-serif;
  box-shadow:inset 0 1px 0 #ffffff0a;
  transition:border-color .18s ease, background .18s ease;
}
.site-sponsor::after {
  content:''; position:absolute; left:0; right:0; top:0; height:1px;
  background:linear-gradient(90deg,transparent,rgba(85,180,113,.8),transparent);
  pointer-events:none;
}
.site-sponsor:hover { border-color:rgba(85,180,113,.65); background:linear-gradient(155deg,#303b35,#202429); }
.site-sponsor:focus-visible { outline:2px solid #55b471; outline-offset:5px; }
.site-sponsor-brand { display:flex; flex-direction:column; align-items:center; gap:7px; }
.site-sponsor-label { color:var(--w70); font-size:14px; font-weight:600; line-height:1.3; letter-spacing:.03em; }
.site-sponsor-brand img { display:block; width:190px; height:auto; object-fit:contain; }
.site-sponsor-cta { display:flex; align-items:center; justify-content:center; gap:8px; color:var(--white); font-size:14px; font-weight:600; line-height:1.4; letter-spacing:.03em; text-align:center; }
.site-sponsor-arrow { flex:none; color:#55b471; font-size:19px; line-height:1; }
@media (max-width:759px) {
  main > .title { margin-bottom:18px; }
  .site-sponsor { padding:15px 18px; margin-bottom:24px; }
  .site-sponsor-label { font-size:11px; }
  .site-sponsor-brand img { width:180px; }
  .site-sponsor-cta { font-size:13px; letter-spacing:0; }
}
@media (max-width:359px) {
  .site-sponsor { padding:14px 12px; }
}
@media (prefers-reduced-motion:reduce) { .site-sponsor { transition:none; } }