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

.container {
    padding: 20px;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
}

.header button {
    background-color: #e0f2f1;
    border: none;
    border-radius: 20px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}

.header button.active {
    background-color: #c8e6c9;
}

.rating {
    display: flex;
    align-items: center;
    margin-top: 20px;
}

.rating .score {
    font-size: 48px;
    font-weight: bold;
    margin-right: 10px;
}

.rating .stars {
    color: #4caf50;
    font-size: 24px;
}

.rating .reviews {
    margin-top: 5px;
    color: #757575;
}

.bars {
    margin-top: 20px;
}

.bar {
    display: flex;
    align-items: center;
    margin-bottom: 5px;
}

.bar span {
    margin-right: 10px;
    color: #757575;
}

.bar .progress {
    flex: 1;
    height: 10px;
    background-color: #e0e0e0;
    border-radius: 5px;
    overflow: hidden;
}

.bar .progress .fill {
    height: 100%;
    background-color: #4caf50;
}

.review {
    display: flex;
    align-items: flex-start;
    margin-top: 20px;
    border-top: 1px solid #e0e0e0;
    padding-top: 20px;
}

.review img {
    border-radius: 50%;
    width: 40px;
    height: 40px;
    margin-right: 10px;
}

.review .content {
    flex: 1;
}

.review .content .name {
    font-weight: bold;
}

.review .content .date {
    color: #757575;
    margin-top: 5px;
}

.review .content .text {
    margin-top: 10px;
    color: #424242;
}

.review .content .helpful {
    margin-top: 10px;
    color: #757575;
}

.review .content .helpful .buttons {
    margin-top: 5px;
}

.review .content .helpful .buttons button {
    background-color: #e0e0e0;
    border: none;
    border-radius: 20px;
    padding: 5px 15px;
    margin-right: 10px;
    cursor: pointer;
}