/* Botão principal do WhatsApp */
        .whatsapp-float {
            position: fixed;
            bottom: 25px;
            right: 25px;
            z-index: 9999;
        }

        .whatsapp-button {
            position: relative;
            width: 65px;
            height: 65px;
            border-radius: 50%;
            background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4),
                        0 4px 12px rgba(0, 0, 0, 0.3);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border: 3px solid rgba(255, 255, 255, 0.3);
            text-decoration: none;
            animation: pulse-scale 2s ease-in-out infinite;
        }

        /* Animação de pulso sutil */
        @keyframes pulse-scale {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.05);
            }
        }

        /* Efeito de onda ao redor do botão */
        .whatsapp-button::before,
        .whatsapp-button::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 100%;
            height: 100%;
            border-radius: 50%;
            border: 2px solid #25D366;
            transform: translate(-50%, -50%);
            animation: ripple 2s ease-out infinite;
            opacity: 0;
        }

        .whatsapp-button::after {
            animation-delay: 1s;
        }

        @keyframes ripple {
            0% {
                transform: translate(-50%, -50%) scale(1);
                opacity: 0.8;
            }
            100% {
                transform: translate(-50%, -50%) scale(1.8);
                opacity: 0;
            }
        }

        /* Ícone do WhatsApp */
        .whatsapp-button i {
            font-size: 32px;
            color: #ffffff;
            transition: transform 0.3s ease;
            filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
            animation: shake 3s ease-in-out infinite;
        }

        /* Animação de balançar o ícone */
        @keyframes shake {
            0%, 90%, 100% {
                transform: rotate(0deg);
            }
            92%, 96% {
                transform: rotate(-15deg);
            }
            94%, 98% {
                transform: rotate(15deg);
            }
        }

        /* Hover no botão */
        .whatsapp-button:hover {
            transform: scale(1.1) rotate(5deg);
            box-shadow: 0 12px 32px rgba(37, 211, 102, 0.6),
                        0 6px 16px rgba(0, 0, 0, 0.4);
            background: linear-gradient(135deg, #2EE06C 0%, #14A085 100%);
        }

        .whatsapp-button:hover i {
            transform: scale(1.15);
            animation: none;
        }

        /* Tooltip/Mensagem */
        .whatsapp-tooltip {
            position: absolute;
            right: 80px;
            top: 50%;
            transform: translateY(-50%);
            background: #ffffff;
            color: #1e293b;
            padding: 12px 20px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            opacity: 0;
            pointer-events: none;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            border: 2px solid #25D366;
        }

        /* Setinha do tooltip */
        .whatsapp-tooltip::after {
            content: '';
            position: absolute;
            right: -8px;
            top: 50%;
            transform: translateY(-50%);
            width: 0;
            height: 0;
            border-style: solid;
            border-width: 8px 0 8px 8px;
            border-color: transparent transparent transparent #25D366;
        }

        /* Animação do tooltip */
        .whatsapp-float:hover .whatsapp-tooltip {
            opacity: 1;
            right: 90px;
        }

        /* Badge de notificação */
        .whatsapp-badge {
            position: absolute;
            top: -5px;
            right: -5px;
            width: 24px;
            height: 24px;
            background: linear-gradient(135deg, #ff4757 0%, #e84118 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 11px;
            font-weight: bold;
            box-shadow: 0 4px 12px rgba(255, 71, 87, 0.5);
            animation: bounce-badge 2s ease-in-out infinite;
            border: 2px solid #ffffff;
        }

        @keyframes bounce-badge {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.2);
            }
        }

        /* Efeito de brilho */
        .shine {
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, 
                transparent 30%, 
                rgba(255, 255, 255, 0.3) 50%, 
                transparent 70%);
            animation: shine-rotate 3s linear infinite;
            pointer-events: none;
            border-radius: 50%;
        }

        @keyframes shine-rotate {
            from {
                transform: rotate(0deg);
            }
            to {
                transform: rotate(360deg);
            }
        }

        /* Responsivo */
        @media (max-width: 768px) {
            .whatsapp-float {
                bottom: 20px;
                right: 20px;
            }

            .whatsapp-button {
                width: 60px;
                height: 60px;
            }

            .whatsapp-button i {
                font-size: 28px;
            }

            .whatsapp-tooltip {
                display: none; /* Oculta tooltip no mobile */
            }
        }

        /* Versão alternativa com texto */
        .whatsapp-extended {
            width: auto;
            padding: 0 20px 0 15px;
            border-radius: 50px;
            gap: 10px;
        }

        .whatsapp-extended .whatsapp-text {
            font-size: 15px;
            font-weight: 700;
            color: #ffffff;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
            display: none;
        }

        /* Mostrar texto no hover (opcional) */
        .whatsapp-button:hover .whatsapp-text {
            display: block;
        }

        /* Efeito de partículas (opcional - mais elaborado) */
        .particle {
            position: absolute;
            width: 6px;
            height: 6px;
            background: #25D366;
            border-radius: 50%;
            pointer-events: none;
            opacity: 0;
            animation: particle-float 2s ease-out infinite;
        }

        .particle:nth-child(1) {
            top: 20%;
            left: 20%;
            animation-delay: 0s;
        }

        .particle:nth-child(2) {
            top: 60%;
            left: 80%;
            animation-delay: 0.5s;
        }

        .particle:nth-child(3) {
            top: 80%;
            left: 40%;
            animation-delay: 1s;
        }

        @keyframes particle-float {
            0% {
                transform: translateY(0) scale(0);
                opacity: 0;
            }
            50% {
                opacity: 1;
            }
            100% {
                transform: translateY(-50px) scale(1);
                opacity: 0;
            }
        }