* {
    box-sizing: border-box;
}

body {
    font-family: sans-serif;
    font-size: 16px;
    line-height: 1.4;
    margin: 0;
}

h1, h2 {
    margin: 0;
    line-height: 1;
    word-wrap: break-word;
}

h1 {
    margin-bottom: 1rem;
}

.header {
    background: #333;
    color: #fafafa;
    padding: 4rem 1rem;
    text-align: center;
}

.leaderboard {
    max-width: 750px;
    padding-inline: 1rem;
    margin-inline: auto;
    margin-block: 1rem;
}

.leaderboard > div {
    display: grid;
    grid-template-columns: 1.5rem 1fr 3rem;
    gap: .5rem;
    padding: .5rem;
}

.leaderboard > div:not(:last-child) {
    border-bottom: 1px solid #ccc;
}

.leaderboard > div:hover {
    background: #333;
    color: #fafafa;
}

.leaderboard-number,
.leaderboard-video-count {
    text-align: right;
}

.leaderboard-nickname {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}