/* Shared leaderboard filter panel and options. */
/* ----- floating filter panel ----- */
.fpanel { position: absolute; left: 50%; top: 12px; z-index: 5; width: min(680px, calc(100% - 44px)); max-height: min(560px, calc(100% - 24px)); overflow: hidden; display: flex; flex-direction: column; background: var(--bg); border: 1px solid var(--ink); box-shadow: 4px 4px 0 rgba(9, 8, 8, 0.85); transform: translateX(-50%); transform-origin: top center; transition: transform 170ms ease, opacity 170ms ease; }
.app.fclosed .fpanel { transform: translate(-50%, -8px) scale(.985); opacity: 0; pointer-events: none; }
.fp-head { flex: none; display: flex; align-items: center; gap: 8px; padding: 10px 12px 9px; border-bottom: 1px solid var(--bg-2); background: #fff; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-3); }
.fpc { font-family: var(--font-mono); font-size: 8.5px; color: #FEFCFB; background: var(--brick); padding: 1px 6px; }
.fpc:empty { display: none; }
.fp-x { margin-left: auto; appearance: none; cursor: pointer; border: 1px solid var(--bg-3); background: #fff; color: var(--ink-3); font-size: 13px; line-height: 1; width: 22px; height: 22px; }
.fp-x:hover { border-color: var(--ink); color: var(--ink); }
.fpanel .side-f { overflow-y: auto; flex: 1; min-height: 0; }
.fp-tab { position: absolute; left: 14px; top: 12px; z-index: 4; appearance: none; cursor: pointer; display: inline-flex; align-items: center; gap: 7px; font: inherit; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.07em; text-transform: uppercase; border: 1px solid var(--ink); background: #fff; color: var(--ink); padding: 7px 11px; box-shadow: 3px 3px 0 rgba(9, 8, 8, 0.85); }
.fp-tab:hover { background: var(--ink); color: #FEFCFB; }
.main { transition: padding-left 170ms ease; }
.app:not(.fclosed) .main { padding-left: 0; }
.app.fclosed .main { padding-left: 0; }
@media (max-width: 980px) { .fpanel { width: min(680px, calc(100% - 24px)); } .app:not(.fclosed) .main { padding-left: 0; } }

/* ----- sidebar: pedagogic filters ----- */
.side-f { padding: 14px 16px 18px; }
.fgrp { margin-bottom: 20px; }
.fgrp h4 { margin: 0; display: flex; align-items: baseline; gap: 8px; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-3); font-weight: 500; }
.fgrp h4 .rst { margin-left: auto; cursor: pointer; font-family: var(--font-mono); font-size: 8.5px; letter-spacing: 0.04em; color: var(--brick); text-transform: none; }
.fgrp .fex { margin: 3px 0 9px; font-size: 10.5px; line-height: 1.55; color: var(--ink-4); }
.fgroup { display: flex; flex-wrap: wrap; gap: 6px; }
.fcols { display: grid; grid-template-columns: 1fr 1fr; gap: 5px 6px; }
.fcols .fopt { margin-bottom: 0; }
.fchip { appearance: none; cursor: pointer; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.04em; text-transform: uppercase; border: 1px solid var(--bg-3); background: #fff; color: var(--ink-3); padding: 5px 9px; transition: all 120ms ease; }
.fchip:hover { border-color: var(--ink); color: var(--ink); }
.fchip.on { background: var(--ink); border-color: var(--ink); color: #FEFCFB; }
.fopt { appearance: none; cursor: pointer; font: inherit; font-size: 15px; display: flex; align-items: flex-start; gap: 9px; width: 100%; box-sizing: border-box; text-align: left; border: 1px solid var(--bg-2); background: #fff; color: var(--ink); padding: 7px 9px; margin-bottom: 5px; transition: all 120ms ease; }
.fopt:hover { border-color: var(--ink); }
.fopt .fic { width: 24px; height: 24px; flex: none; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--bg-2); background: var(--bg); }
.fopt .fic img { width: 14px; height: 14px; object-fit: contain; display: block; }
.fopt .fic svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.4; }
.fopt .ftx { min-width: 0; flex: 1; }
.fopt b { display: block; font-size: 11.5px; font-weight: 600; line-height: 1.3; }
.fopt small { display: block; font-size: 10px; line-height: 1.45; color: var(--ink-4); margin-top: 1px; }
.fopt .fn { flex: none; font-family: var(--font-mono); font-size: 9px; color: var(--ink-4); margin-top: 2px; }
.fopt.on { border-color: var(--ink); background: var(--ink); color: #FEFCFB; }
.fopt.on small { color: rgba(254, 252, 251, 0.62); }
.fopt.on .fn { color: rgba(254, 252, 251, 0.62); }
.fopt.on .fic { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.25); }
.fopt.slim { padding: 5px 9px; align-items: center; }
.fmore { appearance: none; cursor: pointer; font: inherit; width: 100%; border: 1px dashed var(--bg-3); background: none; color: var(--ink-3); font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.04em; padding: 6px 0; text-transform: uppercase; }
.fmore:hover { border-color: var(--ink); color: var(--ink); }