.membership-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.22);
    z-index: 10000;

    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0s linear 0.25s;
}

.membership-overlay.show {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 0.25s ease, visibility 0s linear 0s;
}

.membership-modal {
    width: min(760px, calc(100vw - 32px));
    max-height: 85vh;
    background: #fff;
    border-radius: 22px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
    overflow: hidden;

    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -52%) scale(0.98);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.membership-overlay.show .membership-modal {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.membership-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 24px;
    border-bottom: 1px solid #ececec;
    background: #fff;
}

.membership-header h2 {
    font-size: 24px;
    color: #111;
}

.membership-close {
    width: 42px;
    height: 42px;
    border: none;
    border-radius: 50%;
    background: #f3f3f3;
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
}

.membership-close:hover {
    background: #e9e9e9;
}

.membership-content {
    max-height: calc(85vh - 150px);
    overflow-y: auto;
    padding: 24px;
    line-height: 1.7;
    color: #333;
}

.membership-content h3 {
    margin-top: 18px;
    margin-bottom: 10px;
    font-size: 18px;
    color: #111;
}

.membership-content h3:first-child {
    margin-top: 0;
}

.membership-content p {
    margin-bottom: 12px;
    font-size: 14px;
}

.membership-content ul {
    margin: 0 0 14px 20px;
}

.membership-content li {
    margin-bottom: 8px;
    font-size: 14px;
}

.membership-footer {
    padding: 18px 24px 24px;
    border-top: 1px solid #ececec;
    background: #fff;
    display: flex;
    justify-content: flex-end;
}

.membership-confirm {
    padding: 12px 18px;
    border-radius: 14px;
    border: none;
    background: #222;
    color: #fff;
    font-size: 14px;
    cursor: pointer;
}

.membership-confirm:hover {
    background: #111;
}