.whatsapp-fab {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 9999;
    font-family: var(--font-primary);
    pointer-events: none;
    --wa-green: #25D366;
    --wa-green-deep: #1EAD59;
    --wa-brown: #5B2B1B;
    --wa-brown-deep: #3A1B12;
    --wa-gold: #F7D33A;
}

.whatsapp-fab__cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    position: relative;
    cursor: pointer;
    pointer-events: auto;
    padding: 8px 18px 8px 10px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--wa-brown) 0%, var(--wa-brown-deep) 100%);
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.24);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.whatsapp-fab__cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 26px rgba(0, 0, 0, 0.28);
    filter: saturate(1.05);
}

.whatsapp-fab__cta:active {
    transform: translateY(0);
}

.whatsapp-fab__cta:focus-visible {
    outline: 2px solid var(--wa-gold);
    outline-offset: 4px;
}

.whatsapp-fab__icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #57F09A 0%, var(--wa-green) 60%, var(--wa-green-deep) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.25);
    border: 2px solid rgba(255, 255, 255, 0.7);
    flex: 0 0 auto;
}

.whatsapp-fab__icon img {
    width: 60%;
    height: 60%;
    display: block;
}

.whatsapp-fab__copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
    padding-right: 6px;
    color: #FFFFFF;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.28);
}

.whatsapp-fab__title {
    color: var(--wa-gold);
    font-size: 10px;
    font-weight: 700;
    line-height: 1.1;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

.whatsapp-fab__subtitle {
    color: #FFFFFF;
    font-size: 16px;
    font-weight: 800;
    line-height: 1.1;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

@media (max-width: 768px) {
    .whatsapp-fab {
        bottom: 16px;
        right: 16px;
        left: auto;
    }

    .whatsapp-fab__cta {
        gap: 10px;
        padding: 6px 14px 6px 8px;
    }

    .whatsapp-fab__icon {
        width: 46px;
        height: 46px;
    }

    .whatsapp-fab__title {
        font-size: 9px;
        letter-spacing: 0.8px;
    }

    .whatsapp-fab__subtitle {
        font-size: 14px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .whatsapp-fab__cta {
        transition: none;
    }

    .whatsapp-fab__cta:hover,
    .whatsapp-fab__cta:active {
        transform: none;
    }
}