:root {
        --wa-accent-color: #25D366;
        --wa-primary-gradient: linear-gradient(135deg, #25D366, #128C7E);
        --wa-shadow-color: rgba(37, 211, 102, 0.4);
        --wa-hover-shadow: rgba(37, 211, 102, 0.6);
    }


    .whatsapp-container {
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: 9999;
    }

    .whatsapp-link {
        display: flex;
        align-items: center;
        justify-content: center;
        padding-left: 18px;
        padding-top: 12px;
        width: 80px;
        height: 80px;
        border-top-left-radius: 100%;
        background-color: transparent;
        border: 2px solid var(--wa-accent-color);
        cursor: pointer;
        transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        text-decoration: none;
        position: relative;
        overflow: hidden;

        /* Initial animation */
        animation: pulse 2s infinite, float 3s ease-in-out infinite;

        /* Shadow effects */
        box-shadow:
            0 8px 25px var(--wa-shadow-color),
            0 0 0 0 var(--wa-shadow-color);
    }

    /* Ripple effect */
    .whatsapp-link::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.3);
        transition: all 0.5s ease-out;
        transform: translate(-50%, -50%);
    }

    /* Glowing border effect */
    .whatsapp-link::after {
        content: '';
        position: absolute;
        inset: -2px;
        border-radius: 50% 50% 50% 0;
        background: var(--wa-primary-gradient);
        z-index: -1;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    /* Hover effects */
    .whatsapp-link:hover {
        transform: scale(1.1) rotate(-5deg);
        box-shadow:
            0 15px 35px var(--wa-hover-shadow),
            0 0 0 10px rgba(37, 211, 102, 0.1),
            0 0 0 20px rgba(37, 211, 102, 0.05);
        border-color: #fff;
        background: linear-gradient(135deg, #128C7E, #25D366);
        animation: shake 0.6s ease-in-out;
    }

    .whatsapp-link:hover::before {
        width: 100%;
        height: 100%;
        opacity: 0;
    }

    .whatsapp-link:hover::after {
        opacity: 1;
    }

    /* SVG animations */
    .whatsapp-link svg {
        transition: all 0.3s ease;
        filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    }

    .whatsapp-link:hover svg {
        transform: scale(1.1) rotate(10deg);
        filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3)) brightness(1.2);
    }

    /* Active state */
    .whatsapp-link:active {
        transform: scale(0.95) rotate(0deg);
        transition: transform 0.1s ease;
    }

    /* Keyframe animations */
    @keyframes pulse {

        0%,
        100% {
            box-shadow:
                0 8px 25px var(--wa-shadow-color),
                0 0 0 0 var(--wa-shadow-color);
        }

        50% {
            box-shadow:
                0 8px 25px var(--wa-shadow-color),
                0 0 0 15px rgba(37, 211, 102, 0.1);
        }
    }

    @keyframes float {

        0%,
        100% {
            transform: translateY(0px);
        }

        50% {
            transform: translateY(-5px);
        }
    }

    @keyframes shake {

        0%,
        100% {
            transform: scale(1.1) rotate(-5deg) translateX(0);
        }

        25% {
            transform: scale(1.1) rotate(-5deg) translateX(-2px);
        }

        75% {
            transform: scale(1.1) rotate(-5deg) translateX(2px);
        }
    }

    @keyframes slideIn {
        from {
            transform: translateX(100px);
            opacity: 0;
        }

        to {
            transform: translateX(0);
            opacity: 1;
        }
    }

    /* Initial load animation */
    .whatsapp-container {
        animation: slideIn 0.8s ease-out;
    }

    /* Focus accessibility */
    .whatsapp-link:focus {
        outline: 3px solid rgba(37, 211, 102, 0.5);
        outline-offset: 3px;
    }

    /* ✅ Responsiveness */
    @media (max-width: 768px) {
        .whatsapp-link {
            width: 60px;
            height: 60px;
            padding-left: 14px;
            padding-top: 10px;
        }

        .whatsapp-link svg {
            width: 24px;
            height: 24px;
        }

        .whatsapp-link:hover {
            transform: scale(1.05) rotate(-3deg);
        }

        @keyframes float {

            0%,
            100% {
                transform: translateY(0px);
            }

            50% {
                transform: translateY(-3px);
            }
        }
    }

    @media (max-width: 480px) {
        .whatsapp-container {
            bottom: 15px;
            right: 15px;
        }

        .whatsapp-link {
            width: 50px;
            height: 50px;
            padding-left: 10px;
            padding-top: 8px;
        }

        .whatsapp-link svg {
            width: 20px;
            height: 20px;
        }

        .whatsapp-link:hover {
            transform: scale(1.03) rotate(-2deg);
        }

        @keyframes pulse {

            0%,
            100% {
                box-shadow:
                    0 4px 15px var(--wa-shadow-color),
                    0 0 0 0 var(--wa-shadow-color);
            }

            50% {
                box-shadow:
                    0 4px 15px var(--wa-shadow-color),
                    0 0 0 10px rgba(37, 211, 102, 0.1);
            }
        }
    }

    /* Reduced motion support */
    @media (prefers-reduced-motion: reduce) {
        .whatsapp-link {
            animation: none;
        }

        .whatsapp-link:hover {
            transform: scale(1.05);
            animation: none;
        }

        .whatsapp-container {
            animation: none;
        }
    }