.callback-button {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background: #c1121f;  
    color: #fff;
    border: none;
    padding: 12px 10px;
    cursor: pointer;
    z-index: 9999;

    border-radius: 0 10px 10px 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);

    display: flex;
    align-items: center;
    justify-content: center;

    animation: pulseShadow 2s infinite ease-out;
}


@keyframes pulseShadow {
    0% {
        box-shadow: 0 0 0 0 rgba(193,18,31, 0.7);
    }
    70% {
        box-shadow: 0 0 25px 15px rgba(193,18,31, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(193,18,31, 0);
    }
}

a.callback-button {
    display: flex;
    color: #fff;
    text-decoration: none;
}

.callback-button {
    pointer-events: auto !important;
}


.cb-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}


.callback-button i {
    font-size: 22px;
    animation: ringAnim 1.2s infinite ease-in-out;
}

@keyframes ringAnim {
    0%, 100% { transform: rotate(0deg); }
    20% { transform: rotate(15deg); }
    40% { transform: rotate(-15deg); }
    60% { transform: rotate(10deg); }
    80% { transform: rotate(-10deg); }
}


.callback-button span {
   writing-mode: vertical-lr;
   text-orientation: mixed;
   font-size: 14px;
   font-weight: 600;
   letter-spacing: 3px;
}

.callback-button:hover {
    background: #9c0e18;
}

@media (max-width: 600px) {
    .callback-button {
        padding: 10px 8px;
    }
    .callback-button i {
        font-size: 19px;
    }
    .callback-button span {
        font-size: 12px;
    }
}