/* Rate-distortion frontier explorer. */
.fr{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:18px;align-items:start}
.fr-main{min-width:0}
.fr-controls{display:flex;flex-wrap:wrap;gap:8px 14px;margin:6px 0 12px}
.fr-group{display:inline-flex;gap:6px;flex-wrap:wrap}
.fr-controls button{padding:6px 11px;font-size:12.5px;border-radius:999px;display:inline-flex;gap:6px;align-items:center}
.fr-controls button[aria-pressed=true]{border-color:var(--amber);color:var(--amber)}
.fr-controls button[data-codec][aria-pressed=false]{opacity:.45}
.fr-controls button i{width:9px;height:9px;border-radius:2px;background:var(--c)}
.fr-chart{position:relative;width:100%;touch-action:none;user-select:none;cursor:crosshair;border:1px solid var(--line);border-radius:10px;background:#0c1218}
.fr-chart svg{display:block;width:100%;height:auto}
.fr-grid{stroke:#1b242d;stroke-width:1}
.fr-tick{fill:#6f7a86;font-size:10.5px;font-family:var(--font)}
.fr-axis{fill:#8f9aa6;font-size:11.5px;font-family:var(--font)}
.fr-target{stroke:#f5bd68;stroke-dasharray:4 4;stroke-width:1;opacity:.7}
.fr-brush{fill:#f5bd6814;stroke:#f5bd68;stroke-dasharray:3 3}
.fr-pt{cursor:pointer}
.fr-tip{position:absolute;z-index:2;pointer-events:none;width:250px;background:#0b1016f2;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:12px;line-height:1.45}
.fr-tip span{color:var(--muted);font-size:11px}
.fr-side{display:flex;flex-direction:column;gap:10px}
.fr-side label{font-size:12px;color:var(--muted);display:flex;flex-direction:column;gap:6px}
.fr-side input{accent-color:var(--amber)}
.fr-target-label{font-size:13px;color:#c9cfd5}
.fr-row{display:grid;grid-template-columns:10px 1fr auto;column-gap:8px;align-items:baseline;padding:7px 0;border-bottom:1px solid var(--line);font-size:13px}
.fr-row i{width:9px;height:9px;border-radius:2px;background:var(--c)}
.fr-row strong{font-variant-numeric:tabular-nums}
.fr-row em{grid-column:2/4;font-style:normal;font-size:11.5px;color:var(--muted)}
.fr-note,.fr-scope{font-size:11.5px;color:var(--muted);line-height:1.5;margin:4px 0 0}
.fr-empty{color:var(--muted);padding:40px 20px}
@media (max-width:860px){.fr{grid-template-columns:1fr}}
.fr-table{grid-column:1/-1;margin-top:6px}