.bw-leaderboard {
    --lb-ink: #10242b;
    --lb-muted: #61767d;
    --lb-paper: rgba(255, 255, 255, .94);
    --lb-line: rgba(16, 36, 43, .13);
    --lb-accent: #00a6a6;
    --lb-highlight: #d8ef4b;
    box-sizing: border-box;
    width: min(100%, 760px);
    margin: 1.25rem auto;
    padding: clamp(1rem, 3vw, 1.5rem);
    color: var(--lb-ink);
    background: var(--lb-paper);
    border: 1px solid var(--lb-line);
    border-radius: 24px;
    box-shadow: 0 18px 55px rgba(13, 37, 44, .14);
    font: 600 1rem/1.35 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    backdrop-filter: blur(16px);
}

.bw-leaderboard *,
.bw-leaderboard *::before,
.bw-leaderboard *::after { box-sizing: border-box; }

.bw-leaderboard__header,
.bw-leaderboard__row,
.bw-leaderboard__form {
    display: flex;
    align-items: center;
}

.bw-leaderboard__header { justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.bw-leaderboard__heading { min-width: 0; }
.bw-leaderboard__eyebrow { color: var(--lb-accent); font-size: .72rem; letter-spacing: .15em; }
.bw-leaderboard__title { margin: .15rem 0 0; font-size: clamp(1.45rem, 4vw, 2.25rem); line-height: 1; }

.bw-leaderboard button,
.bw-leaderboard input {
    min-height: 44px;
    border: 0;
    border-radius: 12px;
    font: inherit;
}

.bw-leaderboard button { cursor: pointer; }
.bw-leaderboard button:disabled { cursor: not-allowed; opacity: .48; }
.bw-leaderboard__refresh { padding: .65rem .9rem; color: var(--lb-ink); background: #eaf1f2; }
.bw-leaderboard__status { margin: .5rem 0; color: var(--lb-muted); }
.bw-leaderboard__status[hidden], .bw-leaderboard__form[hidden] { display: none; }

.bw-leaderboard__list { display: grid; gap: .5rem; margin: 0; padding: 0; list-style: none; counter-reset: none; }
.bw-leaderboard__row {
    min-height: 54px;
    padding: .55rem .8rem;
    gap: .8rem;
    background: rgba(234, 241, 242, .72);
    border-radius: 14px;
}
.bw-leaderboard__row:first-child { background: color-mix(in srgb, var(--lb-highlight) 46%, white); }
.bw-leaderboard__rank { display: grid; place-items: center; flex: 0 0 2rem; height: 2rem; color: white; background: var(--lb-ink); border-radius: 50%; }
.bw-leaderboard__player { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bw-leaderboard__score { margin-left: auto; color: var(--lb-accent); font-variant-numeric: tabular-nums; }

.bw-leaderboard__form {
    flex-wrap: wrap;
    gap: .75rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--lb-line);
}
.bw-leaderboard__pending { flex: 1 1 100%; color: var(--lb-muted); font-size: .9rem; }
.bw-leaderboard__label { display: grid; flex: 1 1 220px; gap: .35rem; color: var(--lb-muted); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; }
.bw-leaderboard__name { width: 100%; padding: .65rem .8rem; color: var(--lb-ink); background: white; outline: 1px solid var(--lb-line); }
.bw-leaderboard__name:focus { outline: 2px solid var(--lb-accent); }
.bw-leaderboard__save { align-self: end; padding: .72rem 1.15rem; color: #112026; background: var(--lb-highlight); }

@media (max-width: 540px) {
    .bw-leaderboard { border-radius: 18px; }
    .bw-leaderboard__refresh { padding-inline: .7rem; }
    .bw-leaderboard__save { width: 100%; }
}

@media (prefers-reduced-motion: no-preference) {
    .bw-leaderboard__row { animation: bw-score-in .28s ease both; }
    @keyframes bw-score-in { from { opacity: 0; transform: translateY(5px); } }
}