.nst-nav{
 width:min(1120px,calc(100% - 32px));margin:20px auto 0;padding:10px 12px 10px 18px;
 display:flex;align-items:center;justify-content:space-between;gap:20px;
 background:rgba(255,255,255,.82);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
 border:1px solid rgba(228,233,241,.95);border-radius:18px;
 box-shadow:0 8px 32px rgba(16,24,40,.06);position:relative;z-index:20
}
.nst-nav-logo{font-weight:950;letter-spacing:-.045em;text-decoration:none;color:#111827;font-size:18px}
.nst-nav-logo span{color:#5b5cf0}
.nst-nav-links{display:flex;align-items:center;gap:4px}
.nst-nav-links a{
 text-decoration:none;color:#475467;font-size:14px;font-weight:750;padding:10px 13px;border-radius:11px
}
.nst-nav-links a:hover{background:#f1f3ff;color:#4f46e5}
@media(max-width:680px){
 .nst-nav{width:calc(100% - 20px);margin-top:10px;padding:12px;display:block}
 .nst-nav-logo{display:block;text-align:center;margin-bottom:9px}
 .nst-nav-links{display:grid;grid-template-columns:repeat(4,1fr);gap:4px}
 .nst-nav-links a{text-align:center;padding:9px 4px;font-size:12px}
}

/* v16: redes sociales en cabecera */
.nst-nav-social{display:flex;align-items:center;gap:7px;margin-left:auto}
.nst-nav-social-label{font-size:12px;font-weight:800;opacity:.7;margin-right:2px}
.nst-social-icon{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(0,0,0,.10);border-radius:10px;background:rgba(255,255,255,.78);color:inherit;text-decoration:none;font-size:12px;font-weight:900;line-height:1;cursor:pointer;padding:0}
.nst-social-icon:hover{transform:translateY(-1px);background:#fff}
@media(max-width:620px){.nst-nav-social-label{display:none}.nst-nav-social{gap:5px}.nst-social-icon{width:31px;height:31px;font-size:11px}}

/* v22: compartir de cabecera más grande y visible */
.nst-nav-social-label{font-size:13px;font-weight:900;color:#155eef}
.nst-social-icon{width:39px;height:39px;border-color:#cbd9ff;background:#f5f8ff;color:#155eef;font-size:13px;font-weight:900;box-shadow:0 2px 8px rgba(21,94,239,.07)}
.nst-social-icon:hover{background:#155eef;color:#fff;border-color:#155eef}
@media(max-width:620px){.nst-social-icon{width:36px;height:36px}}

/* v24.2: banner corporativo DiscoverEncuestas y cabecera sin compartir */
.nst-nav{padding:0;overflow:hidden;background:#fff}
.nst-nav-logo{display:block;width:100%;line-height:0;margin:0}
.nst-nav-logo img{display:block;width:100%;height:auto;max-height:190px;object-fit:contain;object-position:center}
@media(max-width:680px){
 .nst-nav{padding:0;display:block}
 .nst-nav-logo{margin:0}
 .nst-nav-logo img{max-height:120px}
}

/* v24.3: cabecera compacta */
.nst-nav{
  width:min(1120px,calc(100% - 32px));
  min-height:0;
  margin:12px auto 0;
  padding:8px 14px;
  overflow:visible;
  justify-content:center;
  background:rgba(255,255,255,.94);
  border-radius:16px;
}
.nst-nav-logo{
  width:auto;
  max-width:100%;
  height:150px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.nst-nav-logo img{
  width:auto;
  max-width:100%;
  height:150px;
  max-height:150px;
  object-fit:contain;
}
@media(max-width:680px){
  .nst-nav{width:calc(100% - 20px);margin-top:8px;padding:6px 10px;border-radius:14px}
  .nst-nav-logo{height:86px;margin:0}
  .nst-nav-logo img{width:auto;height:86px;max-height:86px;max-width:100%}
}