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.chat-messages{flex:1;overflow-y:auto;padding:1px;min-height:150px}#sidebar-chat-content .game-controls{padding:10px;border-top:1px solid var(--border-color);display:flex;flex-wrap:wrap;gap:8px;flex-shrink:0}#sidebar-chat-content .game-controls .btn{flex:1;min-width:80px}.sidebar .ad-sidebar{flex-shrink:0;margin-top:auto;display:flex;justify-content:center}@media (max-width:820px){.sidebar-tabs{display:none}}.chat-tabs{display:flex;border-bottom:1px solid var(--border-color);margin-bottom:0}.chat-tab{flex:1;padding:10px 15px;background:0 0;border:none;color:var(--text-secondary);font-size:14px;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:6px}.chat-tab:hover{background:var(--bg-hover);color:var(--text-primary)}.chat-tab.active{color:var(--accent);border-bottom:2px solid var(--accent);font-weight:500}.participant-count{background:var(--accent);color:#fff;font-size:11px;padding:2px 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