body {
    margin: 0;
    font-family: sans-serif;
    color: #111;
    background: #fff;
}

.select-screen {
    min-height: 100vh;
    padding: 48px 24px;
    box-sizing: border-box;
}

.select-content {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
}

.select-content h1 {
    margin: 0;
    font-size: 28px;
}

.select-content h2 {
    margin: 48px 0 28px;
    font-size: 24px;
}

.level-list input {
    position: absolute;
    opacity: 0;
}

.level-card {
    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 18px 20px;

    border: 1.5px solid #111;
    border-radius: 14px;

    cursor: pointer;
}

.level-card strong,
.level-card span {
    display: block;
}

.level-card div > span {
    margin-top: 6px;
    font-size: 13px;
    color: #666;
}

.radio-mark {
    width: 18px;
    height: 18px;

    border: 2px solid #111;
    border-radius: 50%;
}

.level-list input:checked + .level-card {
    background: #111;
    color: #fff;
}

.level-list input:checked + .level-card div > span {
    color: #ccc;
}

.level-list input:checked + .level-card .radio-mark {
    background: #fff;
    border: 5px solid #111;
    outline: 2px solid #fff;
}
.select-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;

    margin-top: 32px;
}

.back-link {
    color: #666;
    text-decoration: none;
    font-size: 14px;
}

#nextButton {
    padding: 12px 28px;

    border: none;
    border-radius: 10px;

    background: #111;
    color: #fff;

    font-size: 15px;
    cursor: pointer;
}

#nextButton:disabled {
    opacity: 0.2;
    cursor: not-allowed;
}
.count-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.count-list input {
    position: absolute;
    opacity: 0;
}

.count-card {
    padding: 14px 8px;

    border: 1.5px solid #111;
    border-radius: 12px;

    text-align: center;
    cursor: pointer;
}

.count-list input:checked + .count-card {
    background: #111;
    color: #fff;
}