.arf-live-arena-container{display:grid;grid-template-columns:65% 33%;gap:2%;background:#f3f4f6;padding:20px;border-radius:12px;min-height:600px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}.arf-arena-game{background:#fff;border-radius:12px;box-shadow:0 4px 6px -1px rgb(0 0 0 / .1);padding:30px;display:flex;flex-direction:column;position:relative;overflow:hidden}.quiz-placeholder,.no-quiz{text-align:center;margin-top:10%;color:#4b5563}.icon-lg{font-size:64px;height:64px;width:64px;color:#d1d5db;margin-bottom:20px}.quiz-placeholder h2{margin:0 0 10px 0;color:#111}.quiz-placeholder p{margin-bottom:30px;color:#666}.pulsate{animation:pulse-btn 2s infinite}@keyframes pulse-btn{0%{box-shadow:0 0 0 0 rgb(128 0 0 / .7)}70%{box-shadow:0 0 0 10px #fff0}100%{box-shadow:0 0 0 0 #fff0}}.arf-arena-sidebar{display:flex;flex-direction:column;gap:20px}.arf-sidebar-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 6px -1px rgb(0 0 0 / .1)}.card-header{padding:15px 20px;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center;background:#f9fafb}.card-header h4{margin:0;font-size:14px;font-weight:700;text-transform:uppercase;color:#374151}.card-body{padding:20px}.arf-sidebar-card.launcher-card{background:#1f2937;color:#fff;border:none}.launcher-card .card-header{background:#111827;border-bottom:1px solid #374151}.launcher-card .card-header h4{color:#fff}.status-dot{width:8px;height:8px;background:#10b981;border-radius:50%;box-shadow:0 0 8px #10b981;display:inline-block}.launcher-card p{color:#d1d5db;font-size:13px;margin-bottom:20px;line-height:1.5}.btn-launch-jitsi{display:flex;align-items:center;justify-content:center;gap:10px;background:#10b981;color:#fff;text-decoration:none;padding:12px;border-radius:8px;font-weight:700;font-size:16px;transition:transform 0.1s,background 0.2s;box-shadow:0 4px 6px rgb(0 0 0 / .2)}.btn-launch-jitsi:hover{background:#059669;transform:translateY(-2px);color:#fff}.room-info{margin-top:15px;font-size:11px;color:#9ca3af;text-align:center}.room-info code{background:#374151;padding:2px 6px;border-radius:4px;color:#fbbf24;margin-left:5px}.leaderboard-card .card-body{padding:0;max-height:400px;overflow-y:auto;min-height:200px}.lb-placeholder{text-align:center;padding:40px 20px;color:#9ca3af}.lb-placeholder span{font-size:32px;display:block;margin-bottom:10px;opacity:.5}@media (max-width:768px){.arf-live-arena-container{grid-template-columns:1fr;display:flex;flex-direction:column-reverse;flex-direction:column}.arf-arena-sidebar{order:1;margin-bottom:20px}.arf-arena-game{order:2;min-height:400px}}