:root{--primary:#e94560;--primary-dark:#de3d63}.board-container{display:flex;justify-content:center;align-items:center;position:relative;--board-avail-h:calc(100vh - 200px);width:100%;max-width:calc(var(--board-avail-h) * 4 / 3);max-height:var(--board-avail-h);aspect-ratio:4/3;background-color:#1a1a2e;border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.4);overflow:hidden;border:1px solid var(--border)}.game-board{width:100%;height:100%;cursor:crosshair;position:relative;overflow:hidden}.game-board>canvas{display:block;width:100%!important;height:100%!important}#golf-ui-overlay{user-select:none;-webkit-user-select:none}#golf-power-gauge-container{box-shadow:0 4px 10px rgba(0,0,0,.5);animation:pulse-border 1.5s infinite alternate}@keyframes pulse-border{from{border-color:#fff}to{border-color:var(--primary)}}@media (max-width:820px){.board-container{max-width:100%;aspect-ratio:auto;width:100%;max-height:none;min-height:280px;flex:0 0 auto}.game-board{width:100%;height:100%}.ad-mobile-fixed,.game-controls-mobile{flex-shrink:0}.ad-mobile-fixed:not(.hidden){height:auto!important;min-height:50px;overflow:visible;margin:6px auto 10px}}.sidebar{padding:1px;gap:1px}.sidebar-tabs{display:flex;border-bottom:1px solid var(--border-color);margin-bottom:1px;flex-shrink:0}.sidebar-tab{flex:1;padding:10px;background:0 0;border:none;color:var(--text-secondary);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:6px}.sidebar-tab:hover{background:var(--bg-hover);color:var(--text-primary)}.sidebar-tab.active{color:var(--accent);border-bottom:2px solid var(--accent);margin-bottom:-1px}.sidebar-tab-content{flex:1;display:flex;flex-direction:column;gap:1px;overflow-y:auto;min-height:0}#sidebar-chat-content .chat-panel{display:flex;flex-direction:column;flex:1;background:var(--bg-card);border-radius:1px;overflow:hidden;min-height:0}#sidebar-chat-content .chat-section{flex:1;display:flex;flex-direction:column;overflow:hidden;min-height:0}#sidebar-chat-content .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 6px;border-radius:10px;min-width:18px;text-align:center}.tab-content{flex:1;display:flex;flex-direction:column;overflow:hidden}#chat-content{display:flex;flex-direction:column;height:100%}#chat-content .chat-messages{flex:1}.participants-list{padding:10px;overflow-y:auto;height:100%}.participant-section{margin-bottom:15px}.participant-section-header{font-size:12px;color:var(--text-secondary);font-weight:600;margin-bottom:8px;padding-bottom:5px;border-bottom:1px solid var(--border-color)}.participant-items{display:flex;flex-direction:column;gap:6px}.participant-item{display:flex;align-items:center;gap:10px;padding:8px 10px;background:var(--bg-secondary);border-radius:8px;font-size:13px}.participant-item.player{border-left:3px solid var(--accent)}.participant-item.host{border-left:3px solid #f1c40f}.participant-avatar{width:28px;height:28px;border-radius:50%;background:var(--bg-hover);display:flex;align-items:center;justify-content:center;font-size:14px}.participant-info{flex:1}.participant-name{font-weight:500;color:var(--text-primary)}.participant-role{font-size:11px;color:var(--text-secondary)}.participant-badge{font-size:10px;padding:2px 6px;border-radius:4px;font-weight:500}.participant-badge.host{background:#f1c40f;color:#000}.participant-badge.black{background:#2c3e50;color:#fff}.participant-badge.white{background:#ecf0f1;color:#2c3e50}.empty-participants{text-align:center;color:var(--text-secondary);padding:20px;font-size:13px}#participants-content{min-height:0}#participants-content .participants-list{flex:1;height:auto;min-height:0}.participant-search{padding:10px 10px 0}.participant-search input{width:100%;padding:8px 10px;color:var(--text-primary);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:6px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}#players-list.virtual-list{display:block}#players-list.virtual-list>.participant-item{margin-bottom:6px}.virtual-list-spacer{width:100%;margin:0;padding:0;pointer-events:none}