#battle-settings { width:min(420px,calc(100vw - 40px)); color:#eaf5fa; background:#13232b; border:1px solid #547487; border-radius:10px; padding:22px; }
#battle-settings::backdrop { background:#0008; }
#battle-settings h2 { margin:0 0 20px; font-size:20px; }
#battle-settings button { background:#203b49; color:#effaff; border:1px solid #547487; border-radius:5px; padding:9px 16px; cursor:pointer; }
.battle-settings-modes { display:flex; gap:10px; }
.battle-settings-modes button { flex:1; }
#battle-settings button[aria-pressed="true"] { background:#245f70; border-color:#71d8ed; }
.battle-settings-note { font-size:13px; line-height:1.6; color:#bfd1db; }