.mission-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: 360px;
    max-width: 90%;
    height: 100%;
    background: #fff;
    box-shadow: -2px 0 8px rgba(0, 0, 0, .2);
    transition: right 0.3s ease;
    z-index: 1000;
}

.mission-panel.active {
    right: 0;
}

.mission-panel__overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .4);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
    z-index: 999;
}

.mission-panel.active ~ .mission-panel__overlay {
    opacity: 1;
    visibility: visible;
}

.mission-panel__content {
    padding: 20px;
}

.mission-panel__title {
    font-size: 20px;
    margin-bottom: 12px;
}

.mission-panel__text {
    font-size: 14px;
    margin-bottom: 20px;
}

.mission-panel__btn {
    display: inline-block;
    padding: 10px 16px;
    background: #ada090;
    color: #fff;
    text-decoration: none;
    border-radius: 0;
}

.mission-panel__close {
    background: none;
    border: none;
    font-size: 24px;
    position: absolute;
    top: 10px;
    right: 10px;
    cursor: pointer;
}