.room-toolbar{justify-content:space-between;background:hsla(0,0%,100%,.7);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);padding:12px 20px;border-bottom:1px solid #e0e0e0;font-size:14px;border-radius:0 0 12px 12px}.room-actions,.room-toolbar{display:flex;align-items:center}.room-actions{gap:12px}.room-input{padding:8px 12px;border:1px solid #ccc;background-color:#fff;box-shadow:0 1px 2px rgba(0,0,0,.05)}.room-button,.room-input{border-radius:8px;font-size:14px}.room-button{padding:8px 14px;border:none;cursor:pointer;font-weight:500;background-color:#4caf50;color:#fff;transition:background-color .2s ease}.room-button:hover{background-color:#43a047}.room-button.leave{background-color:#f44336}.room-button.leave:hover{background-color:#d32f2f}.room-status{font-size:16px;font-weight:600;color:#222;display:flex;align-items:center;gap:6px}.room-status-label{color:#555}.room-name{font-weight:700;color:#2e7d32;font-size:17px;background-color:#e8f5e9;padding:4px 8px;border-radius:6px}.current-room{margin-top:10px;font-weight:700;color:#333}.app-wrapper{display:flex;flex-direction:row;align-items:flex-start;gap:16px;padding:12px}.toolbar{text-align:center;width:100px;padding:10px;margin-right:20px;border:2px solid #ddd;border-radius:10px;background-color:#f8f8f8;display:flex;flex-direction:column;gap:10px}canvas{flex:1;min-width:0;border:2px solid #444;background-color:#fff;box-shadow:0 2px 10px rgba(0,0,0,.1)}.chat-panel{width:300px;flex-shrink:0;height:70vh;display:flex;flex-direction:column;border:2px solid #ddd;border-radius:10px;background-color:#f8f8f8;overflow:hidden}.chat-title{margin:0;padding:12px 14px;font-size:15px;font-weight:600;color:#333;border-bottom:1px solid #e0e0e0;background-color:#fff;text-align:center}.chat-messages{flex:1;overflow-y:auto;padding:10px;display:flex;flex-direction:column;gap:6px}.chat-empty{color:#aaa;text-align:center;margin-top:40px;font-size:13px}.chat-message{display:flex;flex-direction:column;max-width:85%;padding:6px 10px;border-radius:10px;font-size:13px;line-height:1.4;word-break:break-word}.chat-message.mine{align-self:flex-end;background-color:#dcf8c6;border-bottom-right-radius:2px}.chat-message.other{align-self:flex-start;background-color:#fff;border:1px solid #e8e8e8;border-bottom-left-radius:2px}.chat-session{font-size:11px;font-weight:600;color:#888;margin-bottom:2px}.chat-message.mine .chat-session{text-align:right;color:#5a9e3c}.chat-content{color:#222}.chat-input-area{display:flex;gap:6px;padding:10px;border-top:1px solid #e0e0e0;background-color:#fff}.chat-input{flex:1;padding:8px 10px;border:1px solid #ccc;border-radius:8px;font-size:13px;outline:none}.chat-input:focus{border-color:#4caf50;box-shadow:0 0 0 2px rgba(76,175,80,.15)}.chat-send-button{padding:8px 14px;font-size:13px;border-radius:8px;border:none;cursor:pointer;font-weight:500;background-color:#4caf50;color:#fff;transition:background-color .2s ease;white-space:nowrap}.chat-send-button:hover{background-color:#43a047}@media (max-width:768px){.room-toolbar{flex-direction:column;align-items:stretch;padding:16px;gap:12px;font-size:15px}.room-actions{flex-direction:column;gap:8px;width:100%}.room-button,.room-input{width:100%;font-size:15px;padding:9px 12px}.room-status{justify-content:center;font-size:14px}.app-wrapper{flex-direction:column;align-items:center;padding:12px}.toolbar{width:100%;margin-bottom:16px;flex-direction:row;justify-content:space-around;flex-wrap:wrap;padding:10px 14px;gap:10px}.toolbar h3{display:none}.toolbar label{font-size:13px;margin-right:4px}.toolbar input[type=color],.toolbar input[type=range]{max-width:100px;flex-shrink:0}.toolbar button{font-size:14px;padding:8px 10px;flex-shrink:0}canvas{width:95vw!important;height:400px!important;max-width:100%}.chat-panel{width:100%;height:300px}}