/* ===== NAV / LOGO / FOOTER / WHATSAPP FAB ===== */
.nav{height:74px}
.nav .nm{display:inline-flex;align-items:center}
.brand-logo{height:68px;width:auto;display:block;transition:opacity .2s,transform .25s ease}
.nav .nm:hover .brand-logo{opacity:.85;transform:scale(1.03)}
.foot-brand{display:inline-flex;align-items:center;gap:8px}
.foot-logo{height:40px;width:auto;opacity:.9}
.wa-fab{position:fixed;right:22px;bottom:22px;z-index:200;width:60px;height:60px;border-radius:50%;background:#25d366;display:grid;place-items:center;color:#fff;box-shadow:0 12px 30px rgba(37,211,102,.45);animation:wa-float 3.2s ease-in-out infinite;transition:transform .25s ease}
.wa-fab:hover{transform:scale(1.08)}
.wa-fab svg{width:33px;height:33px}
.wa-ring{position:absolute;inset:0;border-radius:50%;background:#25d366;z-index:-1;animation:wa-pulse 2.6s ease-out infinite}
.wa-tip{position:absolute;right:72px;white-space:nowrap;background:#1d1d1f;color:#fff;font:600 13px/1 'Manrope',sans-serif;padding:9px 13px;border-radius:10px;opacity:0;transform:translateX(8px);transition:opacity .25s,transform .25s;pointer-events:none}
.wa-tip::after{content:'';position:absolute;right:-5px;top:50%;transform:translateY(-50%);border:5px solid transparent;border-left-color:#1d1d1f}
.wa-fab:hover .wa-tip{opacity:1;transform:translateX(0)}
@keyframes wa-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes wa-pulse{0%{transform:scale(1);opacity:.55}70%{transform:scale(1.75);opacity:0}100%{opacity:0}}
@media (max-width:560px){.wa-tip{display:none}}
@media (prefers-reduced-motion:reduce){.wa-fab,.wa-ring{animation:none}}