.floating-call-btn {
    position: fixed;
    bottom: 40px;
    left: 40px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.call-button-wrapper {
    position: relative;
    width: 200px;
    height: 60px;
}

.call-btn {
    position: relative;
    width: 100%;
    height: 100%;
    background: linear-gradient(-45deg, #00a2ff, #0066ff, #2d00ff);
    background-size: 400% 400%;
    border-radius: 30px;
    border: none;
    box-shadow: 0 6px 24px rgba(0, 102, 255, 0.3);
    animation: gradientBG 10s ease infinite;
    transition: all 0.3s ease;
    overflow: hidden;
}

.whatsapp-btn {
    background: linear-gradient(-45deg, #25d366, #128c7e, #075e54) !important;
    position: absolute;
}

.call-btn::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(45deg);
    animation: shimmer 3s linear infinite;
}

.call-btn:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.4);
}

.call-content {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
    z-index: 1;
}

.phone-icon {
    position: relative;
    margin-right: 10px;
    animation: ring 1.5s ease infinite;
}

.ripple {
    position: absolute;
    width: 60px;
    height: 60px;
    left: -10px;
    top: 0;
    border: 3px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    animation: ripple 2s linear infinite;
    opacity: 0;
}

.ripple:nth-child(2) {
    animation-delay: 0.5s;
}

.ripple:nth-child(3) {
    animation-delay: 1s;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes shimmer {
    0% { transform: translate(-50%, -50%) rotate(45deg); }
    100% { transform: translate(150%, 150%) rotate(45deg); }
}

@keyframes ring {
    0% { transform: rotate(0); }
    10% { transform: rotate(15deg); }
    20% { transform: rotate(-15deg); }
    30% { transform: rotate(15deg); }
    40% { transform: rotate(-15deg); }
    50% { transform: rotate(0); }
    100% { transform: rotate(0); }
}

@keyframes ripple {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

@media (max-width: 768px) {
    .floating-call-btn {
        bottom: 20px;
        left: 20px;
    }
    
    .call-button-wrapper {
        width: 180px;
        height: 50px;
    }
    
    .call-content {
        font-size: 1rem;
    }
}