.brand-logo { display:block; width:190px; height:auto; }
.site-header .brand, .footer-brand { min-width:190px; background:rgba(255,255,255,.96); padding:.38rem .62rem; border-radius:4px; }
.group-reference { display:flex; align-items:center; gap:1rem; margin-bottom:1.35rem; }
.group-reference > span { text-transform:uppercase; letter-spacing:.18em; font-size:.68rem; font-weight:800; color:#a9cfe1; white-space:nowrap; }
.group-reference a { display:block; background:rgba(255,255,255,.94); border-radius:4px; padding:.45rem .7rem; transition:transform .2s,background .2s; }
.group-reference a:hover { transform:translateY(-2px); background:#fff; }
.group-reference img { width:118px; height:auto; }
.pem-logo-link { display:block; align-self:center; padding:1.5rem; background:#fff; border:1px solid var(--line); transition:transform .2s,box-shadow .2s; }
.pem-logo-link:hover { transform:translateY(-3px); box-shadow:0 18px 40px rgba(7,27,49,.12); }
.pem-logo-link img { width:100%; height:auto; }
.text-link { font-weight:800; color:var(--blue); border-bottom:1px solid currentColor; }
.footer-brand .brand-logo { width:180px; }
.footer-brand { width:max-content; }
footer a:not(.brand) { color:#fff; text-decoration:underline; text-underline-offset:3px; }
.contact-logo { display:inline-block; background:#fff; padding:.6rem .85rem; border-radius:4px; margin-bottom:1.6rem; }
.contact-logo img { display:block; width:190px; height:auto; }
.whatsapp-float { position:fixed; z-index:50; right:1.4rem; bottom:1.4rem; display:flex; align-items:center; gap:.7rem; background:#178b4f; color:#fff; padding:.85rem 1.05rem; border-radius:999px; box-shadow:0 12px 32px rgba(3,16,31,.28); font-size:.82rem; font-weight:800; transition:transform .2s,background .2s; }
.whatsapp-float:hover { transform:translateY(-3px); background:#117643; }
.whatsapp-float:focus-visible { outline:3px solid #fff; outline-offset:3px; }
.whatsapp-float svg { width:25px; height:25px; fill:none; stroke:currentColor; stroke-width:1.75; stroke-linecap:round; stroke-linejoin:round; }
.whatsapp-float svg path:last-child { fill:currentColor; stroke:none; }
@media(max-width:900px){.brand-logo{width:170px}.site-header .brand{min-width:170px}.pem-logo-link{max-width:310px}.group-reference img{width:105px}}
@media(max-width:520px){.brand-logo{width:150px}.site-header .brand{min-width:150px}.group-reference{align-items:flex-start;flex-direction:column;gap:.55rem}.group-reference a{padding:.35rem .55rem}.contact-logo img{width:165px}.whatsapp-float{right:.8rem;bottom:.8rem;padding:.82rem}.whatsapp-float span{display:none}.whatsapp-float svg{width:28px;height:28px}}