/* League filters: the leaderboard's filter panel as a deck, not a curtain.
 *
 * Desktop: opening the filters lays a full-width deck above the results
 *   instead of a narrow card over the athlete names. Sections sit side by
 *   side, options are tiles with a check, a count and a hairline showing
 *   each option's share of its section. The rail no longer peeks on hover;
 *   a click on it opens the deck.
 * Phones: the left drawer becomes a bottom sheet with a grab handle and
 *   two-up tiles; Show results stays docked at its foot.
 * Motion: the deck unrolls and its sections arrive in a short cascade; a
 *   ticked tile stamps its check; counts glide their hairlines.
 *
 * Shared by the homepage preview and full leaderboard routes. */

.sidebar-grab { display: none; }

/* ===== Tiles (all sizes) ===== */
#athleteLeaderboard .sidebar-filter-list .filter-section ul {
    display: grid;
    gap: 0.35rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

#athleteLeaderboard .sidebar-filter-list .filter-section li {
    margin: 0;
    padding: 0;
    border: 0;
}

#athleteLeaderboard .sidebar-filter-list .filter-section li > label {
    --tile-share: 0;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    min-height: 44px;
    margin: 0;
    padding: 0.45rem 0.7rem 0.55rem;
    box-sizing: border-box;
    border: 1px solid var(--lwc-border);
    border-radius: var(--lwc-radius-md, 8px);
    background: var(--lwc-surface);
    cursor: pointer;
    overflow: visible;
    transition:
        border-color 160ms var(--lwc-ease-standard, ease),
        background-color 160ms var(--lwc-ease-standard, ease),
        transform 160ms var(--lwc-ease-standard, ease),
        box-shadow 160ms var(--lwc-ease-standard, ease);
}

@media (hover: hover) {
    #athleteLeaderboard .sidebar-filter-list .filter-section li > label:hover {
        border-color: color-mix(in srgb, var(--lwc-accent) 45%, var(--lwc-border));
        transform: translateY(-1px);
        box-shadow: var(--lwc-shadow-sm);
    }
}

#athleteLeaderboard .sidebar-filter-list .filter-section li > label:active {
    transform: scale(0.98);
}

#athleteLeaderboard .sidebar-filter-list .filter-section li > label:has(input:checked) {
    border-color: var(--lwc-accent);
    background: var(--lwc-accent-soft);
    box-shadow: inset 0 0 0 1px var(--lwc-accent);
}

#athleteLeaderboard .sidebar-filter-list .filter-section li > label:has(input:focus-visible) {
    outline: 2px solid var(--lwc-accent);
    outline-offset: 2px;
}

/* The check: a round stamp instead of a square box. */
#athleteLeaderboard .sidebar-filter-list .filter-section li > label > input[type="checkbox"] {
    flex: 0 0 auto;
    appearance: none;
    display: grid;
    place-items: center;
    width: 1.15rem;
    height: 1.15rem;
    margin: 0;
    border: 1.5px solid var(--lwc-border-strong, var(--lwc-border));
    border-radius: 50%;
    background: var(--lwc-surface);
    transition: border-color 160ms ease, background-color 160ms ease;
}

#athleteLeaderboard .sidebar-filter-list .filter-section li > label > input[type="checkbox"]::after {
    content: "";
    width: 0.32rem;
    height: 0.58rem;
    margin-top: -0.12rem;
    border: solid var(--lwc-on-accent, #fff);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) scale(0);
    transition: transform 220ms var(--lwc-ease-pop, ease-out);
}

#athleteLeaderboard .sidebar-filter-list .filter-section li > label > input[type="checkbox"]:checked {
    border-color: var(--lwc-accent);
    background: var(--lwc-accent);
    animation: lwc-filter-stamp 300ms var(--lwc-ease-pop, ease-out);
}

#athleteLeaderboard .sidebar-filter-list .filter-section li > label > input[type="checkbox"]:checked::after {
    transform: rotate(45deg) scale(1);
}

#athleteLeaderboard .sidebar-filter-list .filter-label-copy {
    display: flow-root;
    flex: 1 1 auto;
    align-items: center;
    gap: 0.45rem;
    min-width: 0;
    color: var(--lwc-ink);
    font-size: 0.95rem;
    line-height: 1.25;
    overflow-wrap: anywhere;
}

#athleteLeaderboard .sidebar-filter-list .filter-label-copy .filter-icon {
    flex: 0 0 auto;
    width: 1.1em;
    color: var(--lwc-accent);
    text-align: center;
    margin-right: 0.3em;
}

#athleteLeaderboard .sidebar-filter-list .filter-label-copy .lwc-flag-icon {
    margin-inline-end: 0.3em;
}

/* Count: a quiet number at the tile's end, without its parentheses. */
#athleteLeaderboard .sidebar-filter-list .filter-count-group {
    float: inline-end;
    margin-left: 0.35rem;
    padding-left: 0;
    font-size: 0;
}

#athleteLeaderboard .sidebar-filter-list .filter-count-group .filter-count {
    color: var(--lwc-muted);
    font-size: 0.8rem;
    font-variant-numeric: tabular-nums;
    font-weight: 700;
}

#athleteLeaderboard .sidebar-filter-list li > label:has(input:checked) .filter-count {
    color: var(--lwc-accent);
}

/* Share hairline along the tile's foot. */
#athleteLeaderboard .sidebar-filter-list .filter-section li > label::after {
    content: "";
    position: absolute;
    left: 0.7rem;
    right: 0.7rem;
    bottom: 0.3rem;
    height: 2px;
    border-radius: 2px;
    background: color-mix(in srgb, var(--lwc-accent) 45%, transparent);
    transform: scaleX(var(--tile-share));
    transform-origin: left center;
    opacity: 0.6;
    transition: transform 420ms var(--lwc-ease-standard, ease), opacity 160ms ease;
}

#athleteLeaderboard .sidebar-filter-list .filter-section li > label:has(input:checked)::after {
    opacity: 1;
}

#athleteLeaderboard .sidebar-filter-list .filter-section h3 {
    position: static;
    margin: 0 0 0.55rem;
    padding: 0;
    background: none;
    box-shadow: none;
}

#athleteLeaderboard .sidebar-filter-list .filter-label-copy {
    overflow-wrap: anywhere;
    word-break: normal;
}

/* ===== Desktop deck ===== */
@media (min-width: 933px), (min-width: 769px) and (min-height: 481px) {
    #athleteLeaderboard > .sidebar:not(.expanded) .sidebar-panel {
        display: none;
    }

    #athleteLeaderboard .sidebar-rail {
        appearance: none;
        width: 50px;
        padding: 0;
        border: 0;
        color: inherit;
        font: inherit;
        cursor: pointer;
    }

    #athleteLeaderboard .sidebar-rail:focus-visible {
        outline: 3px solid var(--lwc-accent);
        outline-offset: -3px;
    }

    #athleteLeaderboard > .sidebar.expanded:not(.button-collapsed):not([aria-hidden="true"]) {
        flex-basis: 100%;
        width: 100%;
        grid-template-columns: minmax(0, 1fr);
        height: auto;
        min-height: 0;
        max-height: none;
        margin: 0;
        position: relative;
        top: auto;
    }

    #athleteLeaderboard > .sidebar.expanded .sidebar-rail {
        display: none;
    }

    #athleteLeaderboard > .sidebar.expanded ~ :is(table, .flag-leaderboard) {
        flex-basis: 100%;
        border-radius: 0 0 var(--lwc-radius-lg, 12px) var(--lwc-radius-lg, 12px);
    }

    #athleteLeaderboard > .sidebar.expanded .sidebar-panel {
        position: static;
        width: 100%;
        max-height: none;
        overflow: visible;
        opacity: 1;
        visibility: visible;
        transform: none;
        pointer-events: auto;
        transition: none;
        border: 0;
        border-bottom: 1px solid var(--lwc-border);
        border-radius: 0;
        background:
            linear-gradient(var(--lwc-surface-accent, transparent), transparent 5rem),
            var(--lwc-surface-muted);
        box-shadow: inset 0 -8px 16px -14px rgb(15 23 42 / 0.25);
        animation: lwc-deck-unroll 300ms var(--lwc-ease-standard, ease) both;
    }

    #athleteLeaderboard > .sidebar.expanded .sidebar-heading {
        padding: 0.4rem 1rem;
        position: sticky;
        top: var(--site-sticky-height, 52px);
        z-index: 3;
    }

    #athleteLeaderboard > .sidebar.expanded .sidebar-filter-list {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(min(100%, 10.5rem), 1fr));
        align-items: start;
        gap: 1rem 0.75rem;
        padding: 0.5rem 1rem 1rem;
        overflow: visible;
        scrollbar-gutter: auto;
    }

    #athleteLeaderboard > .sidebar.expanded .filter-section {
        min-width: 0;
        margin: 0;
        padding: 0;
        border: 0;
        animation: lwc-deck-section 320ms var(--lwc-ease-enter, ease-out) both;
    }

    #athleteLeaderboard > .sidebar.expanded .filter-section:nth-child(2) { animation-delay: 40ms; }
    #athleteLeaderboard > .sidebar.expanded .filter-section:nth-child(3) { animation-delay: 80ms; }
    #athleteLeaderboard > .sidebar.expanded .filter-section:nth-child(4) { animation-delay: 120ms; }
    #athleteLeaderboard > .sidebar.expanded .filter-section:nth-child(5) { animation-delay: 160ms; }
    #athleteLeaderboard > .sidebar.expanded .filter-section:nth-child(6) { animation-delay: 200ms; }

    /* Only the long flag list scrolls; the short groups keep their natural height. */
    #athleteLeaderboard > .sidebar.expanded #flag-filter-section ul {
        grid-template-columns: minmax(0, 1fr);
        max-height: 17rem;
        padding: 2px;
        overflow-y: auto;
        overscroll-behavior: contain;
        scrollbar-width: thin;
    }

    #athleteLeaderboard > .sidebar.expanded .filter-section:has(ul:empty) {
        display: none;
    }

    /* No hover peek: the rail waits for a click. */
    #athleteLeaderboard > .sidebar:hover:not(.expanded) .sidebar-panel {
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
    }

    #athleteLeaderboard > .sidebar:hover:not(.expanded) .sidebar-rail {
        opacity: 1;
        cursor: pointer;
    }

    #athleteLeaderboard > .sidebar:not(.expanded) .sidebar-rail {
        transition: background-color 160ms ease, box-shadow 160ms ease;
    }

    #athleteLeaderboard > .sidebar:hover:not(.expanded) .sidebar-rail {
        box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--lwc-accent) 45%, transparent);
    }
}

/* ===== Phone bottom sheet ===== */
@media (max-width: 768px), (max-width: 932px) and (max-height: 480px) and (orientation: landscape) {
    #athleteLeaderboard > .sidebar {
        top: auto;
        right: 0;
        bottom: 0;
        left: 0;
        width: 100%;
        max-width: none;
        height: auto;
        max-height: min(88dvh, 760px);
        margin: 0;
        padding-top: 1.35rem;
        border-radius: 22px 22px 0 0;
        transform: translateY(104%);
        transition:
            transform 320ms cubic-bezier(0.2, 0.9, 0.25, 1),
            visibility 0s linear 320ms;
    }

    #athleteLeaderboard > .sidebar.expanded {
        transform: none;
        transition: transform 360ms cubic-bezier(0.2, 0.9, 0.25, 1), visibility 0s;
    }

    #athleteLeaderboard > .sidebar.expanded::after {
        display: none;
    }

    /* Grab handle. */
    #athleteLeaderboard > .sidebar .sidebar-grab {
        display: block;
        position: absolute;
        inset: 0 0 auto;
        height: 1.35rem;
        touch-action: pan-x;
    }

    #athleteLeaderboard > .sidebar .sidebar-grab::before {
        content: "";
        position: absolute;
        top: 0.55rem;
        left: 50%;
        width: 2.5rem;
        height: 4px;
        margin-left: -1.25rem;
        border-radius: 999px;
        background: var(--lwc-border-strong, var(--lwc-border));
    }

    #athleteLeaderboard > .sidebar .sidebar-filter-list .filter-section ul {
        grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr));
    }

    /* Long names keep whole words on one line. */
    #athleteLeaderboard > .sidebar :is(#aging-clock-filter-section, #generation-filter-section) ul {
        grid-template-columns: minmax(0, 1fr);
    }

    #athleteLeaderboard > .sidebar .sidebar-filter-list .filter-section li > label {
        padding-inline: 0.6rem;
    }

    #athleteLeaderboard > .sidebar .sidebar-filter-list .filter-label-copy {
        font-size: 0.9rem;
    }

    #athleteLeaderboard > .sidebar .sidebar-heading {
        touch-action: pan-x;
    }

    #athleteLeaderboard > .sidebar.expanded .filter-section {
        animation: lwc-deck-section 320ms var(--lwc-ease-enter, ease-out) both;
        animation-delay: 120ms;
    }

    #athleteLeaderboard > .sidebar.expanded .filter-section:nth-child(n + 3) {
        animation-delay: 180ms;
    }
}

@keyframes lwc-deck-unroll {
    from { clip-path: inset(0 0 100% 0); opacity: 0.4; }
    to { clip-path: inset(0); opacity: 1; }
}

@keyframes lwc-deck-section {
    from { opacity: 0; transform: translateY(8px); }
}

@keyframes lwc-filter-stamp {
    0% { transform: scale(0.75); }
    55% { transform: scale(1.2); }
    100% { transform: none; }
}

@media (prefers-reduced-motion: reduce) {
    #athleteLeaderboard .sidebar-filter-list .filter-section li > label,
    #athleteLeaderboard .sidebar-filter-list .filter-section li > label::after,
    #athleteLeaderboard .sidebar-filter-list .filter-section li > label > input[type="checkbox"]::after,
    #athleteLeaderboard > .sidebar,
    #athleteLeaderboard > .sidebar.expanded {
        transition: none;
    }

    #athleteLeaderboard > .sidebar.expanded .sidebar-panel,
    #athleteLeaderboard > .sidebar.expanded .filter-section,
    #athleteLeaderboard .sidebar-filter-list .filter-section li > label > input[type="checkbox"]:checked {
        animation: none;
    }
}