body{font-family:Roboto,Arial,sans-serif;margin:0;padding:0;background-color:#f1f3f4;display:flex;flex-direction:column;height:100vh;overflow:hidden}.welcome-screen{display:flex;align-items:center;justify-content:center;height:100vh;background:linear-gradient(135deg,#287be7,#0959c2 135%);padding:20px;box-sizing:border-box}.welcome-container{background:#fff;border-radius:16px;padding:48px;box-shadow:0 8px 32px #0000001a;max-width:480px;width:100%;text-align:center;position:relative;transition:opacity .3s ease}.welcome-container.loading{pointer-events:none}.welcome-container.loading:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:#fffc;border-radius:16px;z-index:10}.welcome-container.loading:after{content:"";position:absolute;top:50%;left:50%;width:40px;height:40px;margin:-20px 0 0 -20px;border:3px solid #f3f3f3;border-top:3px solid #1a73e8;border-radius:50%;animation:spin 1s linear infinite;z-index:11}.welcome-header{margin-bottom:40px}.welcome-logo{width:200px;height:auto;margin-bottom:20px}.welcome-title{font-size:48px;font-weight:500;color:#202124;margin:0 0 8px;letter-spacing:-1px}.welcome-subtitle{font-size:18px;color:#5f6368;margin:0;font-weight:400}.welcome-actions{display:flex;flex-direction:column;gap:32px}.join-meeting-section,.create-meeting-section{text-align:left}.join-meeting-section h3,.create-meeting-section h3{font-size:16px;color:#202124;margin:0 0 16px;font-weight:500}.input-group{display:flex;flex-direction:column;gap:12px}.meeting-id-input{padding:16px;font-size:18px;border:2px solid #e8eaed;border-radius:8px;background:#f8f9fa;transition:all .2s ease;text-align:center;letter-spacing:1px;font-weight:600}.copyright{padding:16px 0 0}.copyright .divider{padding-bottom:16px}.meeting-id-input::-webkit-outer-spin-button,.meeting-id-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.meeting-id-input[type=number]{-moz-appearance:textfield;-webkit-appearance:textfield;appearance:textfield}.error-message,.success-message{display:flex;align-items:center;gap:12px;padding:16px;margin:16px 0;border-radius:8px;font-size:14px;font-weight:500;animation:slideIn .3s ease-out}.error-message{background:#fef7f0;border:1px solid #f9ab55;color:#d93025}.success-message{background:#e8f5e8;border:1px solid #81c784;color:#1e7e34}.error-message .material-icons,.success-message .material-icons{font-size:20px}.error-message .material-icons{color:#d93025}.success-message .material-icons{color:#1e7e34}.close-error-btn,.close-success-btn{background:none;border:none;cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center;margin-left:auto}.close-error-btn:hover,.close-success-btn:hover{background:#0000001a}.close-error-btn .material-icons,.close-success-btn .material-icons{font-size:18px}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.meeting-id-input:focus{outline:none;border-color:#1a73e8;background:#fff;box-shadow:0 0 0 4px #1a73e81a}.action-btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:16px 24px;font-size:16px;font-weight:500;border:none;border-radius:8px;cursor:pointer;transition:all .2s ease;min-height:56px}.action-btn.primary{background-color:#1a73e8;color:#fff}.action-btn.primary:hover{background-color:#1557b0;transform:translateY(-1px);box-shadow:0 4px 12px #1a73e84d}.action-btn.secondary{width:100%;background-color:#f8f9fa;color:#1a73e8;border:2px solid #e8eaed}.action-btn.secondary:hover{background-color:#e8f0fe;border-color:#1a73e8;transform:translateY(-1px)}.action-btn:disabled{background-color:#f1f3f4;color:#9aa0a6;cursor:not-allowed;transform:none}.divider{position:relative;text-align:center;margin:8px 0}.divider:before{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:#e8eaed}.divider span{background:#fff;padding:0 16px;color:#5f6368;font-size:14px;position:relative}.meeting-screen{display:flex;flex-direction:column;height:100vh}.header{background-color:#fff;padding:16px;box-shadow:0 1px 2px #0000001a;display:flex;align-items:center;justify-content:space-between;gap:16px}.meeting-info{display:flex;align-items:center;gap:12px}.meeting-id-display{font-size:18px;font-weight:600;color:#1a73e8;letter-spacing:2px}.copy-btn{background:none;border:1px solid #e8eaed;border-radius:4px;padding:8px;cursor:pointer;color:#5f6368;transition:all .2s ease}.copy-btn:hover{background-color:#f8f9fa;color:#1a73e8}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;box-sizing:border-box;animation:fadeIn .3s ease}.modal-container{background:#fff;border-radius:16px;padding:40px;max-width:1200px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 8px 32px #0003;animation:slideUp .3s ease}@keyframes slideUp{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{text-align:center;margin-bottom:40px}.modal-header h2{font-size:32px;font-weight:500;color:#202124;margin:0 0 12px}.modal-header p{font-size:16px;color:#5f6368;margin:0}.publisher-tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-bottom:32px}.tier-card{background:#f8f9fa;border:2px solid #e8eaed;border-radius:12px;padding:32px 24px;text-align:center;transition:all .3s ease;cursor:pointer;position:relative;display:flex;flex-direction:column}.tier-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001a;border-color:#1a73e8}.tier-card.recommended{background:linear-gradient(135deg,#f0f7ff,#e6f2ff);border-color:#1a73e8}.recommended-badge{position:absolute;top:-12px;left:50%;transform:translate(-50%);background:linear-gradient(135deg,#358cff,#0959c2);color:#fff;padding:4px 16px;border-radius:12px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.tier-icon{width:64px;height:64px;margin:0 auto 20px;background:linear-gradient(135deg,#358cff,#0959c2);border-radius:50%;display:flex;align-items:center;justify-content:center}.tier-icon .material-icons{font-size:36px;color:#fff}.tier-card h3{font-size:24px;font-weight:500;color:#202124;margin:0 0 8px}.tier-description{font-size:14px;color:#5f6368;margin:0 0 24px;flex-grow:1}.tier-specs{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}.spec-item{display:flex;align-items:center;justify-content:center;gap:8px;font-size:14px;color:#202124}.spec-item .material-icons{font-size:20px;color:#5f6368}.select-tier-btn{background:#fff;border:2px solid #1a73e8;color:#1a73e8;padding:12px 32px;border-radius:8px;font-size:16px;font-weight:500;cursor:pointer;transition:all .2s ease;width:100%}.select-tier-btn:hover{background:#1a73e8;color:#fff}.select-tier-btn.primary{background:linear-gradient(135deg,#358cff,#0959c2);border-color:transparent;color:#fff}.select-tier-btn.primary:hover{transform:scale(1.05);box-shadow:0 4px 12px #667eea66}.cancel-modal-btn{background:none;border:none;color:#5f6368;padding:12px 24px;font-size:14px;cursor:pointer;display:block;margin:0 auto;transition:color .2s ease}.cancel-modal-btn:hover{color:#202124}@media (max-width: 768px){.modal-container{padding:24px}.modal-header h2{font-size:24px}.modal-header p{font-size:14px}.publisher-tiers{grid-template-columns:1fr;gap:16px}.tier-card{padding:24px 20px}.tier-icon{width:56px;height:56px}.tier-icon .material-icons{font-size:32px}.tier-card h3{font-size:20px}}@media (max-width: 768px){.welcome-container{padding:32px 24px;margin:16px}.welcome-title{font-size:36px}.input-group{gap:16px}.action-btn{padding:18px 24px;font-size:16px}}.video-container{flex:1;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-auto-rows:minmax(200px,1fr);gap:16px;padding:16px;background-color:#202124;overflow:auto;align-items:center;justify-content:center}.video-container.auto-layout-1{display:flex!important;align-items:center;justify-content:center;padding:20px}.video-container.auto-layout-1 .video-wrapper{width:100%;max-width:1200px;max-height:75vh;height:auto;aspect-ratio:16 / 9}.video-container.auto-layout-2{display:grid!important;grid-template-columns:1fr 1fr!important;grid-template-rows:1fr;gap:12px;padding:12px;align-items:center}.video-container.auto-layout-2 .video-wrapper{width:100%;height:auto;max-height:60vh;aspect-ratio:16 / 9!important}.video-container.auto-layout-3{display:grid!important;grid-template-columns:1fr 1fr 1fr!important;grid-template-rows:1fr;gap:12px;padding:12px;align-items:center}.video-container.auto-layout-3 .video-wrapper{width:100%;height:auto;max-height:60vh;aspect-ratio:16 / 9!important}.video-container.auto-layout-4{display:grid!important;grid-template-columns:1fr 1fr!important;grid-auto-rows:auto;gap:12px;padding:12px;align-items:center}.video-container.auto-layout-4 .video-wrapper{width:100%;height:auto;max-height:40vh;aspect-ratio:16 / 9!important}.video-container.auto-layout-5{display:grid!important;grid-template-columns:repeat(6,1fr)!important;gap:12px;padding:12px;align-items:center}.video-container.auto-layout-5 .video-wrapper:nth-child(1),.video-container.auto-layout-5 .video-wrapper:nth-child(2),.video-container.auto-layout-5 .video-wrapper:nth-child(3){grid-column:span 2}.video-container.auto-layout-5 .video-wrapper:nth-child(4){grid-column:2 / span 2}.video-container.auto-layout-5 .video-wrapper:nth-child(5){grid-column:4 / span 2}.video-container.auto-layout-5 .video-wrapper{width:100%;height:auto;max-height:40vh;aspect-ratio:16 / 9!important}.video-container.auto-layout-6{display:grid!important;grid-template-columns:1fr 1fr 1fr!important;grid-auto-rows:auto;gap:12px;padding:12px;align-items:center}.video-container.auto-layout-6 .video-wrapper{width:100%;height:auto;max-height:40vh;aspect-ratio:16 / 9!important}.video-container.auto-layout-many{display:grid!important;grid-template-columns:repeat(var(--participant-columns, 4),1fr)!important;grid-auto-rows:auto;gap:8px;padding:8px;align-items:center;overflow-y:auto;--participant-max-height: 30vh;--participant-columns: 4}.video-container.auto-layout-many .video-wrapper{width:100%;height:auto;max-height:var(--participant-max-height);aspect-ratio:16 / 9!important}@media (max-width: 768px){.video-container.auto-layout-2,.video-container.auto-layout-3,.video-container.auto-layout-4,.video-container.auto-layout-5,.video-container.auto-layout-6,.video-container.auto-layout-many{grid-template-columns:1fr!important;gap:8px}.video-container.auto-layout-5 .video-wrapper{grid-column:1!important}.video-container.auto-layout-1{padding:8px}.video-container.auto-layout-1 .video-wrapper{max-height:60vh}.video-container.auto-layout-many .video-wrapper{max-height:40vh}}@media (min-width: 769px) and (max-width: 1024px){.video-container.auto-layout-3,.video-container.auto-layout-6{grid-template-columns:1fr 1fr!important}.video-container.auto-layout-5{grid-template-columns:repeat(4,1fr)!important}.video-container.auto-layout-5 .video-wrapper:nth-child(1),.video-container.auto-layout-5 .video-wrapper:nth-child(2){grid-column:span 2}.video-container.auto-layout-5 .video-wrapper:nth-child(3),.video-container.auto-layout-5 .video-wrapper:nth-child(4),.video-container.auto-layout-5 .video-wrapper:nth-child(5){grid-column:auto}.video-container.auto-layout-many{grid-template-columns:repeat(3,1fr)!important}}.video-container.has-pinned{display:flex;flex-direction:column;align-items:center;justify-content:flex-start}.video-wrapper.pinned{width:100%;max-width:1200px;max-height:70vh;aspect-ratio:16 / 9;margin-bottom:16px;order:-1}.unpinned-videos-container{display:flex;flex-direction:row;flex-wrap:wrap;gap:12px;justify-content:center;width:100%}.video-container.has-pinned .video-wrapper:not(.pinned){max-height:120px;width:160px;aspect-ratio:16 / 9;flex-shrink:0}.video-container.has-pinned .video-wrapper:not(.pinned) .pin-button,.video-container.has-pinned .video-wrapper:not(.pinned) .fullscreen-button,.video-container.has-pinned .video-wrapper:not(.pinned) .video-label{opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease}.video-container.has-pinned .video-wrapper:not(.pinned):hover .pin-button,.video-container.has-pinned .video-wrapper:not(.pinned):hover .fullscreen-button,.video-container.has-pinned .video-wrapper:not(.pinned):hover .video-label{opacity:1;visibility:visible}@media (max-width: 768px){.video-container{grid-template-columns:1fr;gap:12px;padding:12px}.video-wrapper{max-height:50vh}}@media (min-width: 769px) and (max-width: 1200px){.video-container{grid-template-columns:repeat(4,1fr)}}@media (min-width: 1201px){.video-container{grid-template-columns:repeat(5,1fr)}}.video-wrapper{max-height:60vh;position:relative;aspect-ratio:16 / 9;display:flex;justify-content:center;border-radius:8px;overflow:hidden;background-color:#000;box-shadow:0 2px 8px #0003;opacity:0;transform:scale(.8);animation:videoAppear .4s ease-out forwards}@keyframes videoAppear{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.video-wrapper.removing{animation:videoDisappear .3s ease-in forwards}@keyframes videoDisappear{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(.8)}}.video-wrapper video{width:100%;height:100%;border-radius:8px;background-color:#000;object-fit:cover;transition:all .3s ease}.video-label{position:absolute;bottom:6px;left:6px;right:6px;color:#fff;padding:6px 10px;border-radius:6px;font-size:12px;font-weight:500;z-index:2;max-width:calc(100% - 16px);display:flex;align-items:center;justify-content:space-between;gap:6px}.video-label .participant-name{background-color:#000000b3;border-radius:4px;white-space:nowrap;overflow:hidden;padding:5px 15px;text-overflow:ellipsis;min-width:0}.video-label .participant-name:empty{display:none}.video-label .media-status{display:flex;gap:10px;flex-shrink:0}.video-label .media-status-icon{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;font-size:10px}.video-label .media-status-icon .material-icons{font-size:18px}.video-label .media-status-icon.audio{background:#34a853;color:#fff}.video-label .media-status-icon.audio.muted{background:#ea4335;color:#fff}.video-label .media-status-icon.video{background:#1a73e8;color:#fff}.video-label .media-status-icon.video.disabled{background:#ea4335;color:#fff}.video-wrapper.pinned{grid-column:1 / -1;z-index:1;max-height:80vh;width:100%;max-width:1200px;justify-self:center;aspect-ratio:16 / 9}.video-wrapper.pinned video{width:100%;height:100%;object-fit:contain}.video-wrapper.fullscreen{position:fixed!important;top:0!important;left:0!important;width:100vw!important;height:100vh!important;max-height:none!important;z-index:9999;background-color:#000;padding:0;margin:0;border-radius:0;aspect-ratio:unset!important}.video-wrapper.fullscreen video{width:100%!important;height:100%!important;object-fit:contain;border-radius:0}.pin-button{position:absolute;top:8px;right:8px;background-color:#ffffffe6;border:none;border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 2px 4px #0003;transition:all .2s ease;z-index:3}.pin-button:hover{background-color:#fff;transform:scale(1.1)}.pin-button .material-icons{font-size:18px;color:#5f6368}.fullscreen-button{position:absolute;top:8px;right:48px;background-color:#ffffffe6;border:none;border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 2px 4px #0003;transition:all .2s ease;z-index:3}.fullscreen-button:hover{background-color:#fff;transform:scale(1.1)}.fullscreen-button .material-icons{font-size:18px;color:#5f6368}.video-wrapper.pinned .pin-button{background-color:#1a73e8}.video-wrapper.pinned .pin-button .material-icons{color:#fff}.video-wrapper.pinned .pin-button:hover{background-color:#1557b0}.controls{background-color:#fff;padding:16px;box-shadow:0 -1px 2px #0000001a;display:flex;justify-content:center;gap:24px;align-items:center;flex-wrap:wrap}.control-group{display:flex;gap:0;position:relative}.control-btn{background-color:#fff;border:none;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 1px 2px #0003;transition:background-color .2s}.control-btn-small{background-color:#fff;border:none;border-radius:0 24px 24px 0;width:32px;height:48px;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 1px 2px #0003;transition:background-color .2s;margin-left:-4px;border-left:1px solid #e0e0e0}.control-btn-small .material-icons{font-size:20px}.control-group .control-btn{border-radius:24px 0 0 24px}.control-btn:hover,.control-btn-small:hover{background-color:#f1f3f4}.device-dropdown{position:absolute;bottom:60px;left:0;background:#fff;border-radius:8px;box-shadow:0 4px 12px #00000026;min-width:250px;max-width:300px;z-index:1000;display:none;animation:slideUp .2s ease-out}.device-dropdown.show{display:block}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.device-dropdown-header{padding:12px 16px;border-bottom:1px solid #e0e0e0;font-weight:500;font-size:14px;color:#202124}.device-dropdown-list{max-height:300px;overflow-y:auto}.device-dropdown-item{padding:12px 16px;cursor:pointer;display:flex;align-items:center;gap:12px;transition:background-color .15s;font-size:14px;color:#202124}.device-dropdown-item:hover{background-color:#f1f3f4}.device-dropdown-item.selected{background-color:#e8f0fe;color:#1a73e8;font-weight:500}.device-dropdown-item .material-icons{font-size:20px;color:#5f6368}.device-dropdown-item.selected .material-icons{color:#1a73e8}.control-btn:hover{background-color:#f1f3f4}.control-btn.active{background-color:#1a73e8;color:#fff}.control-btn.active.media-control{background-color:#ea4335;color:#fff}.control-btn.active.media-control:hover{background-color:#d93025}.control-btn.leave{width:70px;border-radius:24px;background-color:#ea4335;color:#fff}.control-btn.leave:hover{background-color:#d93025}.material-icons{font-size:24px}.video-wrapper:hover .pin-button,.video-wrapper:hover .fullscreen-button{opacity:1}.pin-button,.fullscreen-button{opacity:.8;transition:opacity .2s ease,transform .2s ease}.video-wrapper.fullscreen .video-label{bottom:20px;left:20px;font-size:16px;padding:8px 12px}.video-wrapper.fullscreen .pin-button,.video-wrapper.fullscreen .fullscreen-button{top:20px;width:40px;height:40px}.video-wrapper.fullscreen .fullscreen-button{right:70px}.video-wrapper.fullscreen .pin-button{right:20px}.controls button.device-unavailable{opacity:.5;cursor:not-allowed;background-color:#666!important}.controls button.device-unavailable:hover{background-color:#666!important;transform:none}.controls button.device-unavailable .material-icons{color:#ccc!important}.video-wrapper.view-only-participant{background:linear-gradient(135deg,#2c3e50,#34495e)}.video-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2c3e50,#34495e);border-radius:8px;min-height:200px}.placeholder-content{text-align:center;color:#ecf0f1}.placeholder-icon{font-size:48px!important;margin-bottom:10px;opacity:.7}.placeholder-text{font-size:14px;font-weight:500;opacity:.8}.view-only-indicator{position:absolute;top:10px;left:10px;background:#3498dbe6;color:#fff;padding:4px 8px;border-radius:12px;font-size:12px;display:flex;align-items:center;gap:4px;z-index:10}.view-only-indicator .material-icons{font-size:14px!important}@media (max-width: 768px){.placeholder-icon{font-size:36px!important}.placeholder-text{font-size:12px}.view-only-indicator{font-size:10px;padding:2px 6px}.view-only-indicator .material-icons{font-size:12px!important}}.language-switcher{position:absolute;top:20px;right:20px;z-index:1000}.language-select{background:#f8f9fa;border:1px solid #e8eaed;border-radius:6px;padding:8px 12px;font-size:14px;color:#3c4043;cursor:pointer;transition:all .2s ease;outline:none}.language-select:hover{border-color:#1a73e8;background:#fff}.language-select:focus{border-color:#1a73e8;background:#fff;box-shadow:0 0 0 2px #1a73e81a}@media (max-width: 768px){.language-switcher{top:10px;right:10px}.language-select{font-size:12px;padding:6px 10px}.control-btn-small.device-selector{display:none}.control-group .control-btn{border-radius:50%}.device-dropdown{left:50%;transform:translate(-50%);min-width:200px}}.control-btn{position:relative}.unread-badge{position:absolute;top:-5px;right:-5px;background:#ea4335;color:#fff;border-radius:50%;min-width:18px;height:18px;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:600;line-height:1;z-index:2}.control-btn.has-unread{animation:pulse-notification 2s infinite}@keyframes pulse-notification{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}.chat-panel{position:fixed;top:0;right:0;width:350px;height:100vh;background:#fff;border-left:1px solid #dadce0;display:flex;flex-direction:column;z-index:1000;box-shadow:-2px 0 8px #0000001a;transform:translate(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);visibility:hidden}.chat-panel.open{transform:translate(0);visibility:visible}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #dadce0;background:#f8f9fa;flex-shrink:0}.chat-header-title{display:flex;align-items:center;gap:10px}.chat-header h3{margin:0;font-size:18px;font-weight:500;color:#202124}.chat-status-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;transition:background-color .3s ease}.chat-status-dot.connected{background-color:#34a853;box-shadow:0 0 4px #34a85366}.chat-status-dot.disconnected{background-color:#9aa0a6;box-shadow:0 0 4px #9aa0a64d}.chat-close-btn{background:none;border:none;padding:8px;border-radius:50%;cursor:pointer;color:#5f6368;transition:all .2s ease}.chat-close-btn:hover{background:#f1f3f4;color:#202124}.chat-messages{flex:1;overflow-y:auto;padding:0;scroll-behavior:smooth}.chat-messages::-webkit-scrollbar{width:6px}.chat-messages::-webkit-scrollbar-track{background:#f1f3f4}.chat-messages::-webkit-scrollbar-thumb{background:#dadce0;border-radius:3px}.chat-messages::-webkit-scrollbar-thumb:hover{background:#bdc1c6}.chat-message{margin:12px 16px;padding:12px;border-radius:12px;max-width:85%;word-wrap:break-word;animation:messageSlideIn .3s ease}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.chat-message.sent{background:#e3f2fd;border:1px solid #bbdefb;margin-left:auto;margin-right:16px}.chat-message.received{background:#f5f5f5;border:1px solid #e0e0e0;margin-right:auto;margin-left:16px}.chat-message.error{background:#ffebee;border:1px solid #ef5350;color:#c62828;margin:8px 16px;text-align:center}.chat-message.system-message{margin:8px 16px;padding:0;border-radius:4px;animation:slideInUp .3s ease}.chat-message.system-message.info{background:#e7f3ff;border-left:3px solid #007bff;color:#004085}.chat-message.system-message.warning{background:#fff3cd;border-left:3px solid #ffc107;color:#856404}.chat-message.system-message.error{background:#fff3cd;border-left:3px solid #dc3545;color:#721c24;text-align:left}.message-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px;font-size:12px}.message-author{font-weight:600;color:#1a73e8}.chat-message.sent .message-author{color:#0d47a1}.message-time{color:#5f6368;font-size:11px}.message-content{font-size:14px;line-height:1.4;color:#202124}.message-content a{color:#1a73e8;text-decoration:none}.message-content a:hover{text-decoration:underline}.error-text{color:#d32f2f;font-weight:500}.chat-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;color:#5f6368;font-size:14px}.chat-spinner{width:32px;height:32px;border:3px solid #f1f3f4;border-top:3px solid #1a73e8;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:12px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.chat-loading-text{text-align:center;line-height:1.4}.chat-input-container{display:flex;align-items:flex-end;padding:16px;border-top:1px solid #dadce0;background:#fff;flex-shrink:0;gap:8px}.chat-input-container.disabled{opacity:.6;pointer-events:none}.chat-input{flex:1;border:1px solid #dadce0;border-radius:20px;padding:10px 16px;font-size:14px;resize:none;max-height:100px;min-height:40px;outline:none;transition:border-color .2s ease;font-family:inherit}.chat-input:focus{border-color:#1a73e8;box-shadow:0 0 0 2px #1a73e81a}.chat-input::placeholder{color:#9aa0a6}.chat-send-btn{background:#1a73e8;border:none;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:#fff;transition:all .2s ease;flex-shrink:0}.chat-send-btn:hover:not(.disabled){background:#1557b0;transform:scale(1.05)}.chat-send-btn.disabled{background:#dadce0;color:#9aa0a6;cursor:not-allowed;transform:none}.chat-send-btn .material-icons{font-size:18px}.emoji-btn{background:none;border:none;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:#5f6368;transition:all .2s ease;flex-shrink:0}.emoji-btn:hover{background:#f1f3f4;color:#202124}.emoji-btn.active{background:#e8f0fe;color:#1a73e8}.emoji-picker{position:absolute;bottom:70px;left:16px;width:320px;max-height:380px;background:#fff;border:1px solid #dadce0;border-radius:12px;box-shadow:0 4px 16px #0003;z-index:1000;overflow:hidden;display:flex;flex-direction:column}.emoji-picker-header{display:flex;gap:4px;padding:8px;border-bottom:1px solid #dadce0;background:#f8f9fa;overflow-x:auto;flex-wrap:nowrap}.emoji-picker-header::-webkit-scrollbar{height:4px}.emoji-picker-header::-webkit-scrollbar-track{background:#f1f3f4}.emoji-picker-header::-webkit-scrollbar-thumb{background:#dadce0;border-radius:2px}.emoji-category{padding:6px 10px;cursor:pointer;border-radius:6px;font-size:20px;transition:background .2s ease;-webkit-user-select:none;user-select:none;flex-shrink:0}.emoji-category:hover{background:#e8eaed}.emoji-category.active{background:#e8f0fe}.emoji-picker-content{display:grid;grid-template-columns:repeat(6,1fr);gap:6px;padding:12px;overflow-y:auto;overflow-x:hidden;max-height:300px;background:#fff;min-height:200px;font-family:"Apple Color Emoji","Segoe UI Emoji","Noto Color Emoji","Android Emoji",EmojiSymbols,sans-serif}.emoji-picker-content::-webkit-scrollbar{width:8px}.emoji-picker-content::-webkit-scrollbar-track{background:#f1f3f4}.emoji-picker-content::-webkit-scrollbar-thumb{background:#dadce0;border-radius:4px}.emoji-picker-content::-webkit-scrollbar-thumb:hover{background:#bdc1c6}.emoji-item{background:transparent;border:none;font-size:28px;padding:8px;cursor:pointer;border-radius:6px;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;line-height:1;min-width:40px;min-height:40px;font-family:"Apple Color Emoji","Segoe UI Emoji","Noto Color Emoji","Android Emoji",EmojiSymbols,EmojiOne Mozilla,Twemoji Mozilla,Segoe UI Symbol,sans-serif;vertical-align:middle;-webkit-user-select:none;user-select:none;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.emoji-item:hover{background:#f1f3f4;transform:scale(1.15)}.emoji-item:active{transform:scale(1.05)}@media (max-width: 768px){.chat-panel{width:100%;right:0}.chat-message{margin:8px 12px;padding:10px;max-width:90%}.chat-input-container{padding:12px}.chat-header{padding:12px 16px}.emoji-picker{width:calc(100% - 32px);left:16px;right:16px}.emoji-picker-content{grid-template-columns:repeat(6,1fr)}.emoji-item{font-size:20px;padding:4px}}@media (max-width: 480px){.chat-message{margin:6px 8px;padding:8px;font-size:13px}.message-header{font-size:11px}.message-content{font-size:13px}}@media (max-width: 1024px) and (min-width: 769px){.chat-panel{width:300px}}.chat-close-btn:focus,.chat-send-btn:focus{outline:2px solid #1a73e8;outline-offset:2px}@media (prefers-contrast: high){.chat-panel{border-left:2px solid #000}.chat-message,.chat-input{border-width:2px}}@media (prefers-reduced-motion: reduce){.chat-panel{transition:none}.chat-message,.control-btn.has-unread{animation:none}}.file-drop-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;display:none;z-index:10000;justify-content:center;align-items:center;flex-direction:column;color:#fff;font-size:24px;pointer-events:none;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.file-drop-overlay.active{display:flex}.file-upload-btn{background:none!important;border:none!important;padding:8px!important;cursor:pointer;color:#666;transition:color .2s;margin-right:8px;border-radius:4px;display:flex;align-items:center;justify-content:center}.file-upload-btn:hover{color:#007bff;background:#007bff1a!important}.file-upload-btn:active{transform:scale(.95)}.chat-message.file-message{background:transparent;padding:8px 12px}.chat-message.file-message .file-content{background:#f8f9fa;border:1px solid #e9ecef;border-radius:8px;padding:12px;margin:4px 0;display:flex;align-items:center;gap:12px;transition:all .2s ease;cursor:default}.chat-message.file-message .file-content:hover{background:#f1f3f4;border-color:#d0d7de}.chat-message.file-message.sent .file-content{background:#e7f3ff;border-color:#b3d9ff}.chat-message.file-message.sent .file-content:hover{background:#d1ecff;border-color:#9cf}.file-content .file-info{flex:1;min-width:0}.file-content .file-name{font-weight:500;word-break:break-word;color:#333;margin-bottom:2px}.file-content .file-meta{font-size:12px;color:#6c757d;margin-top:2px}.file-content .download-btn{background:#007bff;color:#fff;border:none;padding:6px 12px;border-radius:4px;cursor:pointer;font-size:11px;transition:all .2s ease;display:flex;align-items:center;gap:4px;text-decoration:none;white-space:nowrap}.file-content .download-btn:hover{background:#0056b3;transform:translateY(-1px);box-shadow:0 2px 4px #007bff4d}.file-content .download-btn:active{transform:translateY(0);box-shadow:0 1px 2px #007bff4d}.file-content .download-btn:disabled{cursor:not-allowed;opacity:.7}.file-content .download-btn:disabled:hover{transform:none;box-shadow:none}.file-content .download-btn i{font-size:14px}.file-content .download-btn .spinning{animation:spin 1s linear infinite}.upload-progress{background:#f0f0f0;padding:8px 12px;margin:4px 0;border-radius:4px;border-left:3px solid #4caf50;animation:slideInUp .3s ease}.upload-progress .progress-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.upload-progress .progress-filename{font-size:14px;color:#333}.upload-progress .progress-percentage{font-size:12px;color:#666;font-weight:500}.upload-progress .progress-bar{background:#ddd;height:4px;border-radius:2px;overflow:hidden}.upload-progress .progress-fill{background:#4caf50;height:100%;border-radius:2px;transition:width .3s ease;min-width:2px}.file-icon{font-size:24px;flex-shrink:0;width:32px;text-align:center}.chat-input-container{display:flex;align-items:center;gap:4px;padding:8px;border-top:1px solid #eee;background:#fff}.chat-input-container .message-input{flex:1;padding:8px 12px;border:1px solid #ddd;border-radius:20px;outline:none;resize:none;max-height:100px;font-family:inherit}.chat-input-container .message-input:focus{border-color:#007bff;box-shadow:0 0 0 2px #007bff40}.file-error{background:#fff3cd;border:1px solid #ffeaa7;border-left:3px solid #fdcb6e;color:#856404;padding:8px 12px;margin:4px 0;border-radius:4px;font-size:13px}@keyframes slideInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media (max-width: 768px){.file-content{flex-direction:column;align-items:stretch!important;gap:8px!important}.file-content .download-btn{align-self:center;width:fit-content}.file-drop-overlay{font-size:18px;padding:20px;text-align:center}}@media (prefers-color-scheme: dark){.file-content{background:#2d2d2d!important;border-color:#444!important;color:#fff}.file-content:hover{background:#3d3d3d!important;border-color:#555!important}.file-content .file-name{color:#fff}.file-content .file-meta{color:#ccc}.upload-progress{background:#2d2d2d;border-left-color:#4caf50}.upload-progress .progress-filename{color:#fff}.upload-progress .progress-percentage{color:#ccc}.upload-progress .progress-bar{background:#444}}.participants-panel{position:fixed;right:-400px;top:0;width:350px;height:100vh;background:#fff;box-shadow:-2px 0 10px #0000001a;transition:right .3s ease;z-index:1000;display:flex;flex-direction:column}.participants-panel.open{right:0}.participants-header{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:1px solid #e8eaed;background:#f8f9fa}.participants-group{display:flex;flex-direction:row;align-items:center;gap:10px}.participants-header h3{margin:0;color:#202124;font-size:18px;font-weight:500}.participants-count{background:#1a73e8;color:#fff;border-radius:12px;padding:4px 8px;font-size:12px;font-weight:500;min-width:20px;text-align:center}.participants-close-btn{background:none;border:none;padding:8px;border-radius:50%;cursor:pointer;color:#5f6368;transition:all .2s ease}.participants-close-btn:hover{background:#f1f3f4;color:#202124}.participants-list{flex:1;overflow-y:auto;padding:16px}.participant-item{display:flex;align-items:center;padding:12px;border-radius:8px;margin-bottom:8px;transition:background-color .2s ease}.participant-item:hover{background:#f8f9fa}.participant-item.local{background:#e8f0fe;border:1px solid #dadce0}.participant-avatar{width:40px;height:40px;border-radius:50%;background:#1a73e8;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:500;font-size:16px;margin-right:12px;flex-shrink:0}.participant-info{flex:1;min-width:0}.participant-name{font-weight:500;color:#fff;font-size:14px;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.participants-panel .participant-name{color:#202124}.participant-status{font-size:12px;color:#5f6368}.participant-controls{display:flex;gap:4px;margin-left:8px}.participant-media-status{display:flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;font-size:14px;transition:all .2s ease}.participant-media-status .material-icons{font-size:16px}.participant-media-status.audio{background:#34a853;color:#fff}.participant-media-status.audio.muted{background:#ea4335;color:#fff}.participant-media-status.video{background:#1a73e8;color:#fff}.participant-media-status.video.disabled{background:#ea4335;color:#fff}.participants-badge{position:absolute;top:-8px;right:-8px;background:#ea4335;color:#fff;border-radius:10px;padding:2px 6px;font-size:10px;font-weight:500;min-width:16px;text-align:center;line-height:1.2}.pre-join-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px;box-sizing:border-box}.pre-join-container{background:#fff;border-radius:20px;padding:32px;box-shadow:0 20px 60px #0000004d;max-width:600px;width:100%;animation:slideUp .4s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.pre-join-header{text-align:center;margin-bottom:24px}.pre-join-header h2{margin:0 0 8px;font-size:24px;color:#202124;font-weight:500}.pre-join-header p{margin:0;font-size:13px;color:#5f6368}.pre-join-preview{position:relative;width:100%;aspect-ratio:16 / 9;max-height:280px;background:#000;border-radius:12px;overflow:hidden;margin-bottom:16px;box-shadow:0 4px 12px #00000026}.pre-join-preview video{width:100%;height:100%;object-fit:cover}.no-video-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%;background:linear-gradient(135deg,#434343,#000);color:#fff}.no-video-placeholder .material-icons{font-size:48px;margin-bottom:10px;opacity:.7}.no-video-placeholder p{margin:0;font-size:14px;opacity:.9}.pre-join-meeting-info{display:flex;align-items:center;justify-content:center;gap:8px;padding:10px;background:#f1f3f4;border-radius:8px;margin-bottom:20px;font-size:13px;color:#5f6368}.pre-join-meeting-info .material-icons{font-size:20px}.pre-join-meeting-id{font-weight:600;color:#1a73e8;font-size:16px}.pre-join-devices{display:flex;flex-direction:column;gap:14px;margin-bottom:20px}.device-selector-group{display:flex;flex-direction:column;gap:6px}.device-selector-group label{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:#202124}.device-selector-group label .material-icons{font-size:18px;color:#5f6368}.device-select{width:100%;padding:10px 14px;border:2px solid #dadce0;border-radius:8px;font-size:13px;color:#202124;background:#fff;cursor:pointer;transition:all .2s ease;font-family:Roboto,Arial,sans-serif}.device-select:hover{border-color:#1a73e8}.device-select:focus{outline:none;border-color:#1a73e8;box-shadow:0 0 0 3px #1a73e81a}.device-select option{padding:10px}.pre-join-controls{display:flex;gap:10px;margin-bottom:24px}.pre-join-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:12px 16px;border:none;border-radius:8px;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s ease;font-family:Roboto,Arial,sans-serif}.pre-join-btn.toggle-btn{background:#f1f3f4;color:#5f6368;border:2px solid transparent}.pre-join-btn.toggle-btn:hover{background:#e8eaed}.pre-join-btn.toggle-btn.active{background:#e8f0fe;color:#1a73e8;border-color:#1a73e8}.pre-join-btn.toggle-btn.active .material-icons{color:#1a73e8}.pre-join-btn.toggle-btn:not(.active) .material-icons{color:#ea4335}.pre-join-btn .material-icons{font-size:20px}.pre-join-actions{display:flex;gap:12px}.pre-join-btn.primary{background:#1a73e8;color:#fff;font-size:16px;padding:16px 32px}.pre-join-btn.primary:hover{background:#1557b0;box-shadow:0 2px 8px #1a73e84d}.pre-join-btn.primary:active{transform:scale(.98)}.pre-join-btn.secondary{background:transparent;color:#5f6368;border:2px solid #dadce0;padding:16px 32px;font-size:16px}.pre-join-btn.secondary:hover{background:#f1f3f4;border-color:#5f6368}.pre-join-btn:disabled{opacity:.5;cursor:not-allowed}@media (max-width: 768px){.pre-join-container{padding:24px}.pre-join-header h2{font-size:24px}.pre-join-controls{flex-direction:column}.pre-join-actions{flex-direction:column-reverse}.pre-join-btn{width:100%}}@media (max-width: 768px){.participants-panel{width:100%;right:-100%}.participants-header{padding:16px}.participants-list{padding:12px}}