.whatsapp-float { position: fixed; bottom: 28px; right: 28px; z-index: 999; }
.whatsapp-btn { display: flex; align-items: center; justify-content: center; width: 60px; height: 60px; border-radius: 50%; background: #25D366; color: #fff; box-shadow: 0 4px 24px rgba(37,211,102,0.4); transition: all 0.3s var(--ease-spring); animation: whatsappPulse 2s ease-in-out infinite; }
.whatsapp-btn:hover { transform: scale(1.1); box-shadow: 0 8px 32px rgba(37,211,102,0.5); }
.whatsapp-btn svg { width: 30px; height: 30px; }
.whatsapp-tooltip { position: absolute; right: 72px; top: 50%; transform: translateY(-50%); background: #fff; color: #333; padding: 10px 16px; border-radius: 10px; font-size: 0.85rem; font-weight: 600; white-space: nowrap; box-shadow: 0 4px 20px rgba(0,0,0,0.15); opacity: 0; pointer-events: none; transition: all 0.3s ease; }
.whatsapp-tooltip::after { content: ''; position: absolute; right: -6px; top: 50%; transform: translateY(-50%) rotate(45deg); width: 12px; height: 12px; background: #fff; box-shadow: 2px -2px 4px rgba(0,0,0,0.05); }
.whatsapp-btn:hover + .whatsapp-tooltip { opacity: 1; right: 68px; }
@keyframes whatsappPulse { 0%, 100% { box-shadow: 0 4px 24px rgba(37,211,102,0.4); } 50% { box-shadow: 0 4px 32px rgba(37,211,102,0.6), 0 0 0 8px rgba(37,211,102,0.1); } }