body.bg-light {
      color: var(--admin-ink);
      background:
        radial-gradient(circle at 100% 0, rgba(255, 201, 40, .13), transparent 31rem),
        linear-gradient(180deg, #f7f8f5 0, #eef1ec 100%) !important;
    }
    #adminApp { max-width: 1180px !important; }
    #adminApp > .card,
    #superAdminBox {
      border: 1px solid var(--admin-line);
      border-radius: 1.25rem;
      box-shadow: 0 .75rem 2.25rem rgba(18, 31, 22, .07) !important;
      overflow: hidden;
    }
    #adminApp > .card > .card-body { padding: 1.35rem; }
    .admin-page-header {
      position: relative;
      overflow: visible;
      min-height: 148px;
      padding: 1.6rem;
      border-radius: 1.4rem;
      color: #fff;
      background:
        radial-gradient(circle at 86% 20%, rgba(255, 201, 40, .32), transparent 14rem),
        linear-gradient(135deg, #111813 0%, #1d3324 62%, #17643f 100%);
      box-shadow: 0 1rem 2.7rem rgba(17, 24, 19, .18);
    }
    .admin-page-header::after {
      content: "";
      position: absolute;
      right: 20%;
      bottom: 1rem;
      width: 10rem;
      height: 10rem;
      border: 1px solid rgba(255,255,255,.13);
      border-radius: 50%;
      pointer-events: none;
    }
    .admin-header-content, .top-actions { position: relative; z-index: 1; }
    .admin-eyebrow {
      margin-bottom: .35rem;
      color: var(--admin-yellow);
      font-size: .72rem;
      font-weight: 800;
      letter-spacing: .11em;
      text-transform: uppercase;
    }
    .admin-page-title { margin: 0; color: #fff; font-size: clamp(1.75rem, 4vw, 2.6rem); font-weight: 900; letter-spacing: -.045em; text-shadow: 0 2px 18px rgba(0,0,0,.26); }
    .admin-page-subtitle { max-width: 34rem; margin-top: .4rem; color: rgba(255,255,255,.72); font-size: .9rem; }
    .admin-page-header .top-actions .btn {
      color: #fff;
      border-color: rgba(255,255,255,.35);
      background: rgba(255,255,255,.07);
      backdrop-filter: blur(8px);
    }
    .admin-page-header .top-actions .btn:hover { color: var(--admin-ink); border-color: #fff; background: #fff; }
    .admin-page-header .top-actions .btn-outline-danger:hover { color: #fff; border-color: #dc3545; background: #dc3545; }
    .admin-page-header .tnt-account-summary { color: #fff; border-color: rgba(255,255,255,.35); background: rgba(255,255,255,.08); backdrop-filter: blur(8px); }
    .admin-page-header .tnt-account-summary:hover,
    .admin-page-header .tnt-account-menu[open] .tnt-account-summary { color: var(--admin-ink); border-color: #fff; background: #fff; }
    .admin-page-header .tnt-account-avatar { color: var(--admin-ink); background: var(--admin-yellow); }
    .admin-create-card { border-left: 4px solid var(--admin-yellow) !important; }
    .admin-create-card .card-body { padding: 1.1rem 1.35rem !important; }
    .admin-selected-card {
      border: 1px solid rgba(24, 138, 82, .18);
      border-radius: 1rem;
      background: linear-gradient(135deg, rgba(24, 138, 82, .08) 0%, #fff 72%);
      padding: 1rem 1.1rem;
    }
    .admin-selected-title { font-size: 1.08rem; }
    .admin-management-actions .btn { border-radius: .75rem; font-weight: 700; }
    #btnDeleteTournament { margin-left: auto; }
    .admin-tab-badge { font-size: .68rem; vertical-align: middle; }
    .admin-tabs {
      flex-wrap: nowrap;
      overflow-x: auto;
      padding: .35rem;
      border: 1px solid var(--admin-line);
      border-radius: 1rem;
      background: var(--admin-soft);
      scrollbar-width: thin;
    }
    .admin-tabs .nav-item { flex: 1 0 auto; }
    .admin-tabs .nav-link {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: .35rem;
      padding: .65rem .85rem;
      border-radius: .75rem;
      color: #465148;
      font-size: .86rem;
      font-weight: 700;
      white-space: nowrap;
    }
    .admin-tabs .nav-link.active { color: #fff; background: var(--admin-green); box-shadow: 0 .35rem .8rem rgba(24, 138, 82, .2); }
    .admin-tabs .nav-link.active .badge { color: var(--admin-ink) !important; background: #fff !important; }
    .tab-pane > .card, .tab-pane .bg-light-subtle { border-radius: 1rem !important; background: #f8faf7 !important; }
    .form-label { margin-bottom: .38rem; color: #273029; font-size: .84rem; font-weight: 650; }
    .form-control, .form-select { min-height: 44px; border-color: #ccd3cd; border-radius: .72rem; }
    textarea.form-control, select[multiple].form-select { min-height: auto; }
    .form-control:focus, .form-select:focus { border-color: var(--admin-green); box-shadow: 0 0 0 .2rem rgba(24,138,82,.13); }
    .btn { border-radius: .72rem; font-weight: 700; }
    .btn-primary { color: #171b18; border-color: var(--admin-yellow); background: var(--admin-yellow); }
    .btn-primary:hover, .btn-primary:focus { color: #171b18; border-color: #edb900; background: #edb900; }
    .btn-success { border-color: var(--admin-green); background: var(--admin-green); }
    .section-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: 1rem; }
    .section-kicker { color: var(--admin-green); font-size: .69rem; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; }
    .section-description { color: var(--admin-muted); font-size: .85rem; }
    .registration-summary-card {
      position: relative;
      overflow: hidden;
      border: 1px solid var(--admin-line);
      border-radius: 1rem;
      background: #fff;
      padding: .95rem;
      height: 100%;
    }
    .registration-summary-card::after { content: ""; position: absolute; right: -.7rem; bottom: -.9rem; width: 3.8rem; height: 3.8rem; border-radius: 50%; background: rgba(255,201,40,.15); }
    .registration-summary-card .summary-number { font-size: 1.55rem; font-weight: 900; line-height: 1; }
    .registration-group-row td {
      background: #f3f6f2 !important;
      border-top: 1px solid var(--admin-line);
      border-bottom: 1px solid var(--admin-line);
      color: #536057;
      font-size: .77rem;
      font-weight: 800;
      letter-spacing: .04em;
      text-transform: uppercase;
    }
    .registrations-table td { vertical-align: middle; }
    .registration-actions { white-space: nowrap; }
    .admin-toast-container { z-index: 1090; }
    .categories-table { min-width: 780px; }
    .categories-table > :not(caption) > * > * { padding: .9rem .75rem; }
    .categories-table tbody tr { border-bottom: 1px solid var(--admin-line); }
    .category-name { font-weight: 800; }
    .category-meta { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .35rem; }
    .admin-chip { display: inline-flex; align-items: center; gap: .25rem; padding: .22rem .48rem; border: 1px solid var(--admin-line); border-radius: 999px; color: #566158; background: #f7f9f6; font-size: .7rem; font-weight: 750; }
    .admin-chip.is-open { color: #12613a; border-color: rgba(24,138,82,.24); background: rgba(24,138,82,.08); }
    .admin-chip.is-closed { color: #875d00; border-color: rgba(255,201,40,.35); background: rgba(255,201,40,.13); }
    .category-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .38rem; }
    .category-actions .btn { margin: 0 !important; }
    .category-actions .dropdown-menu { min-width: 12rem; border: 1px solid var(--admin-line); border-radius: .8rem; box-shadow: 0 .7rem 1.8rem rgba(17,24,19,.13); }
    .category-workspace {
      padding: 1.1rem;
      border: 1px solid rgba(24, 138, 82, .2);
      border-radius: 1.1rem;
      background:
        radial-gradient(circle at 100% 0, rgba(255, 201, 40, .16), transparent 15rem),
        linear-gradient(135deg, rgba(24, 138, 82, .08), #fff 68%);
    }
    .category-workspace-grid { display: grid; grid-template-columns: minmax(230px, .9fr) minmax(260px, 1.1fr); gap: 1rem; align-items: end; }
    .category-workspace-summary { min-height: 74px; padding: .85rem 1rem; border: 1px solid var(--admin-line); border-radius: .9rem; background: rgba(255,255,255,.82); }
    .category-workspace-name { font-size: 1.02rem; font-weight: 850; }
    .category-workspace-meta { margin-top: .22rem; color: var(--admin-muted); font-size: .78rem; }
    .category-workspace-actions { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1rem; }
    .category-workspace-actions .btn { flex: 1 1 auto; }
    .group-admin-panel { margin-top: 1rem; padding: 1rem; border: 1px solid rgba(24,138,82,.22); border-radius: 1rem; background: linear-gradient(135deg, rgba(24,138,82,.07), rgba(255,255,255,.92)); }
    .group-admin-toolbar { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap; }
    .group-admin-actions { display: flex; gap: .45rem; flex-wrap: wrap; }
    .group-admin-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: .75rem; margin-top: .9rem; }
    .group-admin-card { overflow: hidden; border: 1px solid var(--admin-line); border-radius: .85rem; background: #fff; }
    .group-admin-card h6 { margin: 0; padding: .7rem .8rem; border-bottom: 1px solid var(--admin-line); background: #f8faf7; font-weight: 850; }
    .group-admin-card table { margin: 0; font-size: .78rem; }
    .group-admin-card th, .group-admin-card td { padding: .48rem .55rem; white-space: nowrap; }
    .group-admin-card tr.is-qualified td { color: #12613a; background: rgba(24,138,82,.06); font-weight: 750; }
    .category-list-details { margin-top: 1rem; border: 1px solid var(--admin-line); border-radius: 1rem; background: #fff; overflow: hidden; }
    .category-list-details > summary { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem 1rem; cursor: pointer; color: #334039; font-size: .84rem; font-weight: 800; list-style: none; }
    .category-list-details > summary::-webkit-details-marker { display: none; }
    .category-list-details > summary::after { content: "+"; width: 1.7rem; height: 1.7rem; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; color: var(--admin-green); background: rgba(24,138,82,.1); font-size: 1rem; }
    .category-list-details[open] > summary::after { content: "−"; }
    .category-list-details .categories-table-wrap { padding: 0 .5rem .5rem; border-top: 1px solid var(--admin-line); }
    .matches-workspace-table { min-width: 880px; }
    .matches-workspace-table > :not(caption) > * > * { padding: .9rem .75rem; }
    .match-round-label { display: flex; align-items: center; flex-wrap: wrap; gap: .4rem; margin-bottom: .35rem; color: var(--admin-green); font-size: .72rem; font-weight: 850; letter-spacing: .04em; text-transform: uppercase; }
    .match-round-label span { color: var(--admin-muted); font-weight: 700; }
    .match-versus { font-weight: 750; }
    .match-schedule-grid { display: grid; grid-template-columns: minmax(180px, 1.2fr) minmax(130px, .8fr); gap: .45rem; }
    .match-schedule-grid .btn { grid-column: 1 / -1; justify-self: start; }
    .match-status-actions { display: flex; flex-direction: column; align-items: flex-start; gap: .55rem; }
    .match-action-buttons { display: flex; flex-wrap: wrap; gap: .35rem; }
    .player-pagination { display: inline-flex; align-items: center; gap: .45rem; }
    .player-pagination-status { min-width: 6.5rem; color: var(--admin-muted); font-size: .78rem; font-weight: 700; text-align: center; }
    .players-table tbody tr:hover { background: #f7f9f6; }
    .player-name-cell { font-weight: 700; }
    .player-status { display: inline-flex; padding: .24rem .5rem; border-radius: 999px; font-size: .72rem; font-weight: 750; }
    .player-status.managed { color: #745300; background: #fff5cf; }
    .player-status.normal { color: #17613c; background: #e6f7ed; }
    .player-status.blocked { color: #a1262c; background: #fdebed; }
    .manual-registration-panel, .circuit-members-panel {
      padding: 1.1rem;
      border: 1px solid var(--admin-line);
      border-radius: 1rem;
      background: #f8faf7;
    }
    .selected-player-chips { display: flex; flex-wrap: wrap; gap: .4rem; min-height: 1.8rem; }
    .selected-player-chip { padding: .28rem .55rem; border-radius: 999px; color: #145d39; background: #e4f5eb; font-size: .76rem; font-weight: 750; }
    .selection-meter { color: var(--admin-muted); font-size: .78rem; font-weight: 650; }
    .player-picker { max-height: 255px; overflow-y: auto; padding: .45rem; border: 1px solid #ccd3cd; border-radius: .8rem; background: #fff; }
    .player-picker-option { display: flex; align-items: center; gap: .65rem; padding: .62rem .65rem; border-radius: .65rem; cursor: pointer; }
    .player-picker-option:hover { background: #f3f7f3; }
    .player-picker-option:has(input:checked) { color: #145d39; background: #e7f6ed; }
    .player-picker-option input { width: 1rem; height: 1rem; accent-color: var(--admin-green); }
    .player-picker-option span { font-size: .84rem; font-weight: 650; }
    .player-picker-option small { margin-left: auto; color: var(--admin-muted); }
    .seed-mode-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; }
    .seed-mode-btn {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: .22rem;
      min-height: 92px;
      padding: .85rem;
      border: 1px solid var(--admin-line);
      border-radius: 1rem;
      text-align: left;
      color: var(--admin-ink);
      background: #fff;
    }
    .seed-mode-btn:hover { border-color: rgba(24,138,82,.4); background: #f7fbf8; }
    .seed-mode-btn.active { border-color: var(--admin-green); box-shadow: 0 0 0 .16rem rgba(24,138,82,.13); background: #f1faf5; }
    .seed-mode-btn strong { font-size: .9rem; }
    .seed-mode-btn span { color: var(--admin-muted); font-size: .73rem; line-height: 1.3; }
    .seed-summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; }
    .seed-stat { padding: .75rem; border: 1px solid var(--admin-line); border-radius: .85rem; background: #fff; }
    .seed-stat strong { display: block; font-size: 1.15rem; }
    .seed-stat span { color: var(--admin-muted); font-size: .72rem; }
    .seed-rank { width: 2.3rem; height: 2.3rem; display: inline-flex; align-items: center; justify-content: center; border-radius: .75rem; color: #5b4300; background: #fff2bd; font-weight: 900; }
    .seed-confidence { display: inline-flex; padding: .2rem .45rem; border-radius: 999px; color: #17613c; background: #e6f7ed; font-size: .7rem; font-weight: 750; }
    .seed-table td { vertical-align: middle; }
    .bracket-choice-card { border: 1px solid var(--admin-line); border-radius: 1rem; padding: 1rem; background: #f8faf7; }
    @media (max-width: 991.98px) {
      .admin-management-actions { width: 100%; justify-content: flex-start !important; }
      #btnDeleteTournament { margin-left: 0; }
      .matches-workspace-table, .matches-workspace-table tbody, .matches-workspace-table tr, .matches-workspace-table td { display: block; width: 100%; min-width: 0; }
      .matches-workspace-table thead { display: none; }
      .matches-workspace-table tbody tr { padding: .85rem; border: 1px solid var(--admin-line); border-radius: 1rem; background: #fff; margin-bottom: .7rem; }
      .matches-workspace-table tbody td { padding: .45rem 0; border: 0; }
      .matches-workspace-table tbody td::before { content: attr(data-label); display: block; margin-bottom: .2rem; color: #748078; font-size: .65rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
      .match-schedule-grid { grid-template-columns: 1fr; }
      .match-schedule-grid .btn { grid-column: auto; width: 100%; }
      .match-action-buttons .btn { flex: 1 1 auto; }
    }
    @media (max-width: 767.98px) {
      #adminApp { padding: .8rem .75rem 5.5rem !important; }
      #adminApp > .card > .card-body { padding: 1rem; }
      .admin-page-header { min-height: 0; padding: 1.25rem; align-items: flex-start !important; gap: 1rem; }
      .admin-page-header::after { right: -5rem; }
      .top-actions { width: 100%; }
      .top-actions .btn { flex: 1 1 auto; padding: .4rem .55rem; font-size: .78rem; }
      .admin-management-actions .btn { flex: 1 1 calc(50% - .5rem); font-size: .8rem; }
      .admin-tabs { margin-inline: -.2rem; }
      .admin-tabs .nav-item { flex: 0 0 auto; }
      .admin-tabs .nav-link { width: auto; justify-content: flex-start; }
      .seed-mode-grid { grid-template-columns: 1fr; }
      .seed-mode-btn { min-height: 0; }
      .seed-summary-grid { grid-template-columns: repeat(3, 1fr); }
      .category-workspace-grid { grid-template-columns: 1fr; }
      .category-workspace-actions .btn { flex: 1 1 calc(50% - .45rem); }
      .registrations-table-wrap, .categories-table-wrap, .players-table-wrap { overflow: visible; }
      .registrations-table thead, .categories-table thead, .players-table thead { display: none; }
      .registrations-table, .registrations-table tbody, .registrations-table tr, .registrations-table td,
      .categories-table, .categories-table tbody, .categories-table tr, .categories-table td,
      .players-table, .players-table tbody, .players-table tr, .players-table td { display: block; width: 100%; min-width: 0; }
      .registrations-table tr:not(.registration-group-row), .categories-table tbody tr, .players-table tbody tr {
        border: 1px solid var(--admin-line);
        border-radius: 1rem;
        background: #fff;
        margin-bottom: .75rem;
        padding: .8rem;
        box-shadow: 0 .25rem .75rem rgba(15, 23, 42, .04);
      }
      .registrations-table tr:not(.registration-group-row) td, .categories-table tbody td, .players-table tbody td { border: 0; padding: .3rem 0; }
      .registrations-table tr:not(.registration-group-row) td::before, .categories-table tbody td::before, .players-table tbody td::before {
        content: attr(data-label);
        display: block;
        color: #748078;
        font-size: .66rem;
        font-weight: 800;
        text-transform: uppercase;
        letter-spacing: .05em;
      }
      .registrations-table td.text-end, .categories-table td.text-end { text-align: left !important; }
      .registration-actions, .category-actions { display: flex; flex-wrap: wrap; justify-content: flex-start; gap: .4rem; white-space: normal; padding-top: .55rem !important; }
      .registration-actions .btn, .category-actions > .btn, .category-actions > .dropdown { flex: 1 1 auto; margin: 0 !important; }
      .category-actions > .dropdown .btn { width: 100%; }
      .registration-group-row td { border-radius: .75rem; margin: .75rem 0 .5rem; display: block; }
      .section-heading { flex-direction: column; }
      .manual-registration-panel { padding: .9rem; }
    }