.heartbeat-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(12, minmax(0, 1fr));
}

.score-card,
.index-card {
    grid-column: span 4;
}

.leaderboard-card {
    grid-column: 1 / span 4;
    grid-row: 2 / span 2;
}

.statistics-card {
    grid-column: 5 / -1;
    grid-row: 2;
}

.activities-card {
    grid-column: 5 / -1;
    grid-row: 3;
}

.leaderboard-list {
    display: grid;
    margin: 1rem 0 0;
    padding: 0;
    gap: 0.25rem;
    list-style: none;
}

.leaderboard-actions {
    display: flex;
    position: relative;
    align-items: center;
    gap: 0.5rem;
}

.segment-filter-toggle {
    display: inline-flex;
    position: relative;
    width: 2rem;
    height: 2rem;
    border: 1px solid var(--app-border);
    border-radius: 7px;
    background: var(--app-surface);
    color: var(--app-accent-text);
    cursor: pointer;
    padding: 0;
    align-items: center;
    justify-content: center;
    font-size: 0.68rem;
}

.segment-filter-toggle:hover,
.segment-filter-toggle[aria-expanded="true"] {
    background: var(--app-surface-muted);
    color: var(--app-accent-text);
}

.segment-active-indicator {
    display: none;
    position: absolute;
    top: -0.15rem;
    right: -0.15rem;
    width: 0.45rem;
    height: 0.45rem;
    border: 2px solid var(--app-surface);
    border-radius: 50%;
    background: var(--accent);
}

.segment-filter-toggle.has-active-segments .segment-active-indicator {
    display: block;
}

.segment-filter-panel {
    display: none;
    position: absolute;
    z-index: 10;
    top: calc(100% + 0.45rem);
    right: 0;
    width: 13.5rem;
    border: 0;
    border-radius: 8px;
    background: var(--app-surface);
    box-shadow: var(--app-shadow);
    padding: 0.8rem;
}

.segment-filter-panel.open {
    display: block;
}

.segment-filter-panel p {
    margin: 0 0 0.6rem;
    color: var(--app-text-muted);
    font-size: 0.65rem;
}

.segment-filter-panel label {
    display: flex;
    min-height: 2rem;
    color: var(--app-text);
    cursor: pointer;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.75rem;
}

.segment-clear {
    width: 100%;
    margin-top: 0.65rem;
    border-top: 1px solid var(--app-border);
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
    background: transparent;
    color: var(--app-text-muted);
    cursor: pointer;
    padding-top: 0.65rem;
    font-size: 0.68rem;
    font-weight: 700;
    text-align: left;
}

.leaderboard-list li {
    display: grid;
    border-radius: 6px;
    color: var(--app-text-muted);
    padding: 0.55rem 0.6rem;
    align-items: center;
    font-size: 0.78rem;
    gap: 0.65rem;
    grid-template-columns: 1.25rem 1fr auto;
}

.leaderboard-list .leaderboard-separator {
    display: flex;
    min-height: 1.5rem;
    color: var(--app-text-muted);
    padding: 0;
    align-items: center;
    justify-content: center;
    letter-spacing: 0.25em;
}

.leaderboard-list li.current-user {
    background: color-mix(in srgb, var(--primary) 8%, transparent);
    color: var(--app-text);
}

.leaderboard-rank {
    color: var(--app-accent-text);
    font-weight: 700;
    text-align: center;
}

.leaderboard-list strong {
    color: var(--app-text);
}

.statistics-period {
    cursor: help;
}

.statistics-metrics {
    display: grid;
    margin-top: 1.1rem;
    border-bottom: 1px solid var(--app-border);
    padding-bottom: 1rem;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.statistics-metrics > div {
    display: grid;
    padding: 0 0.8rem;
    gap: 0.15rem;
}

.statistics-metrics > div + div {
    border-left: 1px solid var(--app-border);
}

.statistics-metrics span,
.statistics-metrics small {
    color: var(--app-text-muted);
    font-size: 0.65rem;
}

.statistics-metrics strong {
    color: var(--app-text);
    font-size: 1rem;
}

.statistics-metrics small {
    color: var(--app-accent-text);
}

.sport-statistics {
    margin-top: 0.65rem;
    overflow-x: auto;
}

.sport-statistics th,
.sport-statistics td {
    padding: 0.62rem 0.7rem;
    text-align: right;
    vertical-align: middle;
}

.sport-statistics thead th {
    vertical-align: middle;
}

.sport-statistics th:first-child {
    text-align: left;
}

.sport-statistics tbody th {
    display: flex;
    color: var(--app-text);
    align-items: center;
    gap: 0.55rem;
    font-size: 0.75rem;
    white-space: nowrap;
}

.sport-statistics td strong,
.sport-statistics td small {
    display: block;
}

.sport-statistics td strong {
    color: var(--app-text);
    font-size: 0.75rem;
}

.sport-statistics td small {
    color: var(--app-text-muted);
    font-size: 0.58rem;
    white-space: nowrap;
}

@media (max-width: 1120px) {
    .score-card,
    .index-card {
        grid-column: span 6;
    }

    .score-card {
        grid-row: span 2;
    }

    .leaderboard-card,
    .statistics-card {
        grid-column: span 6;
        grid-row: auto;
    }

    .activities-card {
        grid-column: 1 / -1;
        grid-row: auto;
    }

    .statistics-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        row-gap: 1rem;
    }

    .statistics-metrics > div:nth-child(3) {
        border-left: 0;
    }
}

@media (max-width: 760px) {
    .score-card,
    .index-card,
    .leaderboard-card,
    .statistics-card {
        grid-column: 1 / -1;
    }

    .sport-statistics table,
    .sport-statistics tbody,
    .sport-statistics tr,
    .sport-statistics th,
    .sport-statistics td {
        display: block;
    }

    .sport-statistics thead {
        display: none;
    }

    .sport-statistics tr {
        display: grid;
        border-bottom: 1px solid var(--app-border);
        padding: 0.75rem 0;
        gap: 0.65rem;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sport-statistics tbody th {
        display: flex;
        grid-column: 1 / -1;
    }

    .sport-statistics th,
    .sport-statistics td {
        border: 0;
        padding: 0;
        text-align: left;
    }

    .sport-statistics td::before {
        display: block;
        margin-bottom: 0.1rem;
        color: var(--app-text-muted);
        content: attr(data-label);
        font-size: 0.56rem;
        text-transform: uppercase;
    }
}

@media (max-width: 480px) {
    .statistics-metrics {
        grid-template-columns: 1fr 1fr;
    }
}