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loadingBounce{0%,80%,to{transform:translateY(0)}40%{transform:translateY(-12px)}}.loading-spinner{width:40px;height:40px;border:3px solid var(--bg-card);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.fullscreen-btn{position:absolute;bottom:20px;right:20px;width:44px;height:44px;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-md);color:#fff;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;z-index:100}.fullscreen-btn:hover{background:#000000e6;border-color:var(--primary);transform:scale(1.05)}.screen-share-mode .fullscreen-btn{bottom:140px}.participant-placeholder .placeholder-name{font-size:18px;font-weight:600;color:var(--text-primary);margin-top:8px}.participant-placeholder.large .placeholder-name{font-size:28px;margin-top:16px}@media (max-width: 768px){.zoom-layout .main-video{padding:10px}.viewer-room-video-area.compact-mode{height:auto!important;flex:none!important}.viewer-room-video-area.compact-mode .lk-room-container,.viewer-room-video-area.compact-mode .zoom-layout{height:auto!important}.viewer-room-video-area.compact-mode .main-video{height:auto!important;min-height:200px}.zoom-layout.screen-share-mode{height:auto!important;flex:none!important}.zoom-layout.screen-share-mode .main-video{padding:0!important;align-items:flex-start!important;flex:none!important;height:auto!important}.zoom-layout.screen-share-mode .main-video video{width:100%!important;height:auto!important;max-height:60vh;object-fit:contain}.zoom-layout .main-participant-name{bottom:20px;left:20px;font-size:12px;padding:6px 12px}.zoom-layout .cohost-strip{padding:8px 12px}.zoom-layout .cohost-video{width:120px;height:68px}.zoom-layout .camera-strip{bottom:10px;right:10px}.zoom-layout .camera-item{width:100px;height:56px}.waiting-screen{height:auto!important;min-height:200px;padding:40px 20px}.waiting-animation{width:100px;height:100px;margin-bottom:24px}.waiting-animation .mic-icon{font-size:40px}.waiting-title{font-size:20px}.waiting-subtitle{font-size:14px}.fullscreen-btn{width:40px;height:40px;bottom:16px;right:16px;font-size:18px}.screen-share-mode .fullscreen-btn{bottom:100px}}@media (max-width: 768px) and (orientation: portrait){.viewer-room-content{flex-direction:column!important;flex:1!important;height:auto!important;min-height:0!important;overflow:visible!important}.viewer-room-video-area{flex:0 0 auto!important;height:auto!important;min-height:auto!important;max-height:none!important}.viewer-room-video-area .lk-room-container,.viewer-room-video-area .zoom-layout{height:auto!important;min-height:auto!important}.viewer-room-video-area .main-video{flex:0 0 auto!important;height:auto!important;min-height:200px}.viewer-room-video-area .participant-placeholder{height:auto!important;min-height:200px;padding:40px 20px}.viewer-room-video-area .waiting-screen{height:auto!important;min-height:250px}.viewer-room-chat{position:relative!important;width:100%!important;flex:1!important;min-height:300px;background:var(--bg-card);border-top:1px solid rgba(255,255,255,.1);border-left:none!important;display:flex!important;flex-direction:column;transform:none!important}.viewer-room-chat.open{transform:none!important}.viewer-mobile-chat-btn,.chat-close-btn,.viewer-room-header .chat-toggle-desktop{display:none!important}.viewer-room-header{padding:8px 12px!important}.viewer-room-header .btn{min-width:36px!important;min-height:36px!important;padding:6px!important}.zoom-layout .main-video{padding:5px!important}.zoom-layout.screen-share-mode{height:auto!important;flex:none!important}.zoom-layout.screen-share-mode .main-video{padding:0!important;align-items:flex-start!important;flex:none!important;height:auto!important}.zoom-layout.screen-share-mode .main-video video{width:100%!important;height:auto!important;max-height:50vh;object-fit:contain}}@media (max-width: 900px) and (orientation: landscape){.viewer-room-content{flex-direction:row!important}.viewer-room-video-area{flex:1!important}.viewer-room-chat{position:fixed!important;top:0;right:0;bottom:0;width:300px!important;height:100%!important;transform:translate(100%);transition:transform .3s ease;z-index:1000;background:var(--bg-card);border-left:1px solid rgba(255,255,255,.1)}.viewer-room-chat.open{transform:translate(0)}.viewer-mobile-chat-btn{display:flex!important;position:fixed;bottom:20px;right:20px;z-index:999}.chat-close-btn{display:flex!important;position:absolute;top:12px;right:60px;width:40px;height:40px;border-radius:50%;background:var(--bg-card);border:1px solid rgba(255,255,255,.1);color:var(--text-primary);font-size:20px;cursor:pointer;align-items:center;justify-content:center;z-index:1001}.viewer-room-header .chat-toggle-desktop{display:none!important}.viewer-room-header{padding:8px 12px!important}.viewer-room-header .btn{min-width:36px!important;min-height:36px!important;padding:6px!important}.zoom-layout .main-video{padding:5px!important}.zoom-layout.screen-share-mode .main-video{padding:0!important;align-items:flex-start!important}.zoom-layout.screen-share-mode .main-video video{object-position:top!important}.participant-placeholder.large .placeholder-avatar{width:70px;height:70px;font-size:28px}.participant-placeholder.large .placeholder-name{font-size:20px}.participant-placeholder.large .placeholder-status{font-size:12px}}