.page-leaderboard-container {
    height: 100%; min-height: 0; overflow: hidden;
    padding: 24px 18px;
    background: var(--md-surface); color: var(--md-on-surface);
}
.page-leaderboard {
    width: min(1180px, 100%); height: 100%; min-height: 0; margin: 0 auto;
    display: grid; grid-template-columns: minmax(310px,.78fr) minmax(0,1.62fr);
    grid-template-rows: auto minmax(0,1fr); gap: 16px 20px;
}
.page-leaderboard .error-container { grid-column: 1 / -1; }
.page-leaderboard .error-container .error {
    padding: 12px 16px; background: var(--md-error-container); color: var(--md-error);
    border-radius: 16px; font-size: .84rem;
}
.leaderboard-surface {
    min-height: 0; overflow: hidden; background: var(--md-surface-1);
    border: 1px solid var(--md-outline-variant); border-radius: 26px;
    box-shadow: 0 1px 2px color-mix(in srgb, var(--md-shadow) 55%, transparent);
}
.page-leaderboard .board-container {
    grid-column: 1; grid-row: 2;
    display: flex; flex-direction: column;
}
.leaderboard-panel-header {
    flex: 0 0 auto; min-height: 88px; padding: 18px 20px 14px;
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    border-bottom: 1px solid var(--md-outline-variant);
    background: var(--md-surface-1);
}
.leaderboard-panel-header .eyebrow { margin-bottom: 2px; }
.panel-count {
    flex: 0 0 auto; min-height: 32px; padding: 0 12px; border-radius: 999px;
    display: inline-flex; align-items: center; background: var(--md-secondary-container);
    color: var(--md-on-secondary-container); font-size: .74rem; font-weight: 700;
}
.board-scroll { flex: 1 1 auto; min-height: 0; overflow-y: auto; padding: 8px 6px 12px 8px; }
.page-leaderboard .board { width: 100%; }
.page-leaderboard .board tr { height: 56px; border-radius: 16px; }
.page-leaderboard .board td { vertical-align: middle; }
.page-leaderboard .board .rank {
    width: 54px; padding: 0 4px 0 8px; text-align: right;
    color: var(--md-on-surface-variant); font-size: .76rem; font-weight: 700;
}
.page-leaderboard .board .user { width: 100%; padding: 3px 4px; }
.page-leaderboard .board .user button {
    width: 100%; min-height: 48px; border: 0; border-radius: 15px; padding: 0 12px;
    background: transparent; color: var(--md-on-surface); text-align: left; font-weight: 700;
    transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}
.page-leaderboard .board .user button:hover { background: var(--md-focus); }
.page-leaderboard .board .user button:active { transform: scale(.985); }
.page-leaderboard .board .total {
    width: 86px; padding: 0 12px 0 4px; text-align: right;
    color: var(--md-on-surface-variant); font-size: .78rem; font-weight: 700;
}
.page-leaderboard .board tr.active .rank,
.page-leaderboard .board tr.active .total { color: var(--md-on-primary-container); }
.page-leaderboard .board tr.active .user button {
    background: var(--md-primary-container); color: var(--md-on-primary-container);
}
.leaderboard-empty { margin: 8px; }

.page-leaderboard .player-container {
    grid-column: 2; grid-row: 2;
    padding: 0;
}
.page-leaderboard .player { height: 100%; min-height: 0; display: flex; flex-direction: column; }
.player-header {
    flex: 0 0 auto; min-height: 112px; padding: 22px 24px 18px;
    display: flex; align-items: center; justify-content: space-between; gap: 20px;
    border-bottom: 1px solid var(--md-outline-variant);
    background: linear-gradient(135deg, var(--md-surface-1), var(--md-surface-2));
}
.player-identity { min-width: 0; }
.player-identity h1 { overflow-wrap: anywhere; }
.player-points {
    flex: 0 0 auto; min-width: 128px; min-height: 70px; padding: 12px 16px;
    border-radius: 20px; background: var(--md-primary-container); color: var(--md-on-primary-container);
    display: flex; flex-direction: column; align-items: flex-end; justify-content: center; gap: 2px;
}
.player-points span {
    font-size: .7rem; line-height: 1.2; font-weight: 700; text-transform: uppercase; letter-spacing: .07em;
    opacity: .78;
}
.player-points strong { font-size: 1.55rem; line-height: 1.05; font-weight: 800; letter-spacing: -.03em; }
.player-scroll {
    flex: 1 1 auto; min-height: 0; overflow-y: auto;
    padding: 20px 18px 28px 22px;
}
.achievement-section + .achievement-section { margin-top: 24px; }
.achievement-heading {
    display: flex; align-items: center; gap: 9px; padding: 0 4px 10px;
}
.achievement-heading h2 { font-size: 1.12rem; }
.count-pill {
    min-width: 28px; height: 26px; padding: 0 9px; border-radius: 999px;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--md-secondary-container); color: var(--md-on-secondary-container);
    font-size: .72rem; font-weight: 700;
}
.achievement-list {
    overflow: hidden; border: 1px solid var(--md-outline-variant); border-radius: 18px;
    background: var(--md-surface);
}
.achievement-row {
    min-height: 54px; display: grid; grid-template-columns: 58px minmax(0,1fr) 84px;
    align-items: center; gap: 8px; padding: 8px 14px;
    border-top: 1px solid var(--md-outline-variant);
    transition: background 140ms ease;
}
.achievement-row:first-child { border-top: 0; }
.achievement-row:hover { background: var(--md-focus); }
.achievement-rank { color: var(--md-on-surface-variant); font-size: .74rem; font-weight: 700; }
.achievement-row a {
    min-width: 0; color: var(--md-on-surface); font-size: .89rem; font-weight: 700;
    text-decoration: none; overflow-wrap: anywhere;
}
.achievement-row a:hover { color: var(--md-primary); }
.achievement-score { text-align: right; color: var(--md-primary); font-size: .8rem; font-weight: 800; }
.progress-badge {
    display: inline-flex; align-items: center; min-height: 24px; padding: 0 8px; margin-right: 8px;
    border-radius: 999px; background: var(--md-secondary-container); color: var(--md-on-secondary-container);
    font-size: .68rem; font-weight: 800;
}

@media (max-width: 800px) {
    .page-leaderboard-container { overflow-y: auto; padding: 14px 12px 24px; scrollbar-gutter: stable; }
    .page-leaderboard { height: auto; min-height: 100%; grid-template-columns: 1fr; grid-template-rows: auto 42vh minmax(460px, 1fr); gap: 14px; }
    .page-leaderboard .error-container { grid-column: 1; }
    .page-leaderboard .board-container { grid-column: 1; grid-row: 2; }
    .page-leaderboard .player-container { grid-column: 1; grid-row: 3; min-height: 460px; }
    .player-header { min-height: 96px; padding: 18px; }
    .player-points { min-width: 108px; min-height: 62px; }
    .player-points strong { font-size: 1.3rem; }
}
@media (max-width: 520px) {
    .leaderboard-panel-header { min-height: 78px; padding: 14px; }
    .player-header { align-items: flex-start; }
    .player-points { min-width: 92px; padding: 10px 12px; }
    .achievement-row { grid-template-columns: 48px minmax(0,1fr) 68px; padding-inline: 10px; }
    .player-scroll { padding: 16px 10px 24px 14px; }
}


/* v2.5.12 — keep independent panes while enabling horizontal touchpad pan at browser zoom */
.page-leaderboard-container { overflow-x:auto; overflow-y:hidden; touch-action:pan-x pan-y; overscroll-behavior:contain; }
.board-scroll, .player-scroll { overflow:auto; touch-action:pan-x pan-y; overscroll-behavior:contain; }
@media (max-width:760px) { .page-leaderboard-container { overflow:auto; } }
@media (max-width:800px) { .page-leaderboard-container { overflow:auto; } }

/* v2.5.20 — persistent player identities and leaderboard administration */
.player-header-side { display:flex; align-items:center; justify-content:flex-end; gap:12px; }
.player-admin-actions { display:flex; align-items:center; justify-content:flex-end; gap:6px; flex-wrap:wrap; }
.player-more-button { flex:0 0 auto; }
.player-key { display:block; max-width:360px; margin-top:5px; color:var(--md-on-surface-variant); font:600 .66rem/1.3 ui-monospace, SFMono-Regular, Consolas, monospace; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.achievement-row.with-admin-actions { grid-template-columns:58px minmax(0,1fr) 84px 70px; }
.achievement-admin-actions { display:flex; align-items:center; justify-content:flex-end; gap:3px; }
.player-admin-dialog { gap:18px; }
.player-admin-form { display:grid; gap:14px; }
.player-admin-form .field small { color:var(--md-on-surface-variant); line-height:1.45; }
.player-record-form { margin:0; }
.player-danger-zone { display:grid; gap:12px; padding:15px; border-radius:18px; border:1px solid var(--md-outline-variant); background:var(--md-surface-2); }
.player-danger-zone + .player-danger-zone { margin-top:2px; }
.player-danger-zone h3 { margin:0 0 4px; font-size:1rem; }
.player-danger-zone p { margin:0; line-height:1.48; }
.player-danger-zone.destructive { border-color:color-mix(in srgb, var(--md-error) 34%, var(--md-outline-variant)); background:color-mix(in srgb, var(--md-error-container) 38%, var(--md-surface-1)); }
@media (max-width:940px) {
    .player-header { align-items:flex-start; }
    .player-header-side { align-items:flex-end; flex-direction:column-reverse; }
    .player-admin-actions { max-width:300px; }
}
@media (max-width:800px) {
    .player-header-side { flex-direction:row; align-items:center; }
    .player-admin-actions { max-width:none; }
}
@media (max-width:620px) {
    .player-header { flex-direction:column; align-items:stretch; }
    .player-header-side { width:100%; justify-content:space-between; align-items:flex-end; }
    .player-admin-actions { justify-content:flex-start; }
    .player-points { margin-left:auto; }
    .achievement-row.with-admin-actions { grid-template-columns:48px minmax(0,1fr) 64px; }
    .achievement-row.with-admin-actions .achievement-admin-actions { grid-column:2 / -1; justify-content:flex-end; margin-top:-2px; }
}
@media (max-width:440px) {
    .player-header-side { flex-direction:column-reverse; align-items:stretch; }
    .player-points { width:100%; min-width:0; align-items:flex-start; }
    .player-admin-actions .md-button { flex:1 1 auto; }
}


/* v2.8.10 — case-insensitive nickname search */
.leaderboard-search-box {
    flex: 0 0 auto; min-height: 46px; margin: 10px 10px 2px; padding: 0 8px 0 13px;
    display: flex; align-items: center; gap: 6px; border: 1px solid var(--md-outline-variant); border-radius: 22px;
    background: var(--md-surface-2); transition: border-color 140ms ease, box-shadow 140ms ease;
}
.leaderboard-search-box.focused { border-color: var(--md-primary); box-shadow: 0 0 0 1px var(--md-primary); }
.leaderboard-search-icon { flex: 0 0 auto; color: var(--md-on-surface-variant); font-size: 1.1rem; }
.leaderboard-search-box input { flex: 1 1 auto; min-width: 0; border: 0; outline: 0; padding: 11px 4px; background: transparent; color: var(--md-on-surface); }
.leaderboard-search-box input::placeholder { color: var(--md-on-surface-variant); }