.tnd-explanation {
    border-bottom: 2px dotted #e31b2d;
    color: #b81727;
    cursor: pointer;
}

.tnd-explanation:focus {
    outline: 3px solid rgba(227, 27, 45, .3);
    outline-offset: 3px;
}

.tnd-popup[hidden] {
    display: none;
}

.tnd-popup {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: grid;
    place-items: center;
    padding: 24px;
    background: rgba(17, 17, 15, .72);
}

.tnd-popup-panel {
    position: relative;
    width: min(520px, 100%);
    padding: clamp(30px, 5vw, 52px);
    background: #f0e9db;
    border-top: 7px solid #e31b2d;
    box-shadow: 0 24px 80px rgba(0, 0, 0, .38);
}

.tnd-popup-close {
    position: absolute;
    top: 13px;
    right: 15px;
    width: 38px;
    height: 38px;
    border: 0;
    background: #11110f;
    color: #fff;
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
}

.tnd-popup-text {
    padding-right: 42px;
    color: #11110f;
    font: 20px/1.6 Georgia, serif;
}

.tnd-popup-open {
    overflow: hidden;
}

@media (max-width: 560px) {
    .tnd-popup {
        align-items: end;
        padding: 0;
    }

    .tnd-popup-panel {
        width: 100%;
        padding: 34px 24px 42px;
    }

    .tnd-popup-text {
        padding-right: 34px;
        font-size: 18px;
    }
}