:root {
    --bs-btn-bg: #8a6d3b;
    --bs-btn-border-color: #8a6d3b;
    --bs-btn-hover-bg: #755d32;
    --bs-btn-hover-border-color: #6e572f;
    --bs-btn-focus-shadow-rgb: 156, 131, 88;
    --bs-btn-active-bg: #6e572f;
    --bs-btn-active-border-color: #68522c;
    --bs-btn-active-shadow: inset 0 3px 5px rgba(0, 0, 0, .125);
}

.btn-select-warning {
    background-color: var(--bs-btn-bg);
    border: 1px solid var(--bs-btn-border-color);
    cursor: pointer;
    color: white;
    display: inline-block;
    padding: 6px 12px;
    margin-bottom: 0;
    font-size: 14px;
    font-weight: normal;
    line-height: 1.428571429;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    border-radius: 4px;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}

    .btn-select-warning:hover {
        background-color: var(--bs-btn-hover-bg);
        border: 1px solid var(--bs-btn-hover-border-color);
        color: white;
    }

    .btn-select-warning:focus {
        background-color: var(--bs-btn-hover-bg);
        border: 1px solid var(--bs-btn-hover-border-color);
        color: white;
    }

    .btn-select-warning:active {
        background-color: var(--bs-btn-active-bg);
        border: 1px solid var(--bs-btn-active-border-color);
        color: white;
    }