body{margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}:root{--message-input-height:100px}*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}.App{background-color:#f5f5f5;min-height:100vh}.loading{align-items:center;color:#666;display:flex;font-size:1.2rem;height:100vh;justify-content:center}.page-container{margin:0 auto;max-width:800px;padding:20px}.auth-container{background:#fff;border-radius:8px;box-shadow:0 2px 10px #0000001a;margin:100px auto;max-width:400px;padding:30px}.auth-container h2{color:#333;margin-bottom:20px;text-align:center}.form-group{margin-bottom:20px}.form-group label{color:#555;display:block;font-weight:500;margin-bottom:5px}.form-group input{border:1px solid #ddd;border-radius:4px;font-size:1rem;padding:10px;width:100%}.form-group input:focus{border-color:#007bff;outline:none}.btn{border:none;border-radius:4px;cursor:pointer;font-size:1rem;padding:12px;transition:background-color .3s;width:100%}.btn-primary{background-color:#007bff;color:#fff}.btn-primary:hover{background-color:#0056b3}.btn-primary:disabled{background-color:#ccc;cursor:not-allowed}.btn-secondary{background-color:#6c757d;color:#fff;margin-top:10px}.btn-secondary:hover{background-color:#545b62}.btn-danger{background-color:#dc3545;color:#fff}.btn-danger:hover{background-color:#c82333}.error{background-color:#f8d7da;color:#dc3545}.error,.success{border-radius:4px;margin-bottom:10px;padding:10px;text-align:center}.success{background-color:#d4edda;color:#28a745}.header{align-items:center;background-color:#007bff;color:#fff;display:flex;justify-content:space-between;padding:15px 20px}.header h1{font-size:1.5rem;margin:0}.header-actions{display:flex;gap:10px}.header-actions button{background-color:#fff3;border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:.9rem;padding:8px 16px}.header-actions button:hover{background-color:#ffffff4d}.messages-container{background:#fff;border-radius:8px;box-shadow:0 2px 10px #0000001a;display:flex;flex-direction:column;height:calc(100vh - 100px);height:calc(100vh - var(--message-input-height));margin:20px auto;max-width:800px;position:relative}.messages-list{flex:1 1;overflow-y:auto;padding:20px 20px 100px;padding-bottom:var(--message-input-height)}.message{align-items:flex-end;display:flex;flex-direction:row;gap:10px;margin-bottom:15px}.message.sent{justify-content:flex-end}.message.received{justify-content:flex-start}.message-avatar{align-items:center;border-radius:50%;color:#fff;display:flex;flex-shrink:0;font-size:1rem;font-weight:700;height:36px;justify-content:center;overflow:hidden;width:36px}.message-avatar img{height:100%;object-fit:cover;width:100%}.message-content{display:flex;flex-direction:column;max-width:min(500px,90vw)}.message-bubble{word-wrap:break-word;border-radius:18px;padding:10px 15px}.message.received .message-bubble{background-color:#e9ecef;color:#333}.message-time{color:#999;font-size:.75rem;margin-top:5px}.message-input-container{background:#fff;border-radius:0 0 8px 8px;border-top:1px solid #ddd;bottom:0;display:flex;flex-direction:column;gap:10px;left:0;padding:20px;position:absolute;right:0}.message-input-container .input-row{display:flex;gap:10px}.message-input-container input[type=text]{border:1px solid #ddd;border-radius:20px;flex:1 1;font-size:1rem;padding:10px}.message-input-container input[type=text]:focus{border-color:#007bff;outline:none}.message-input-container button{background-color:#007bff;border:none;border-radius:20px;color:#fff;cursor:pointer;font-size:1rem;padding:10px 20px}.message-input-container button:hover{background-color:#0056b3}.message-input-container button:disabled{background-color:#ccc;cursor:not-allowed}.photo-button{background-color:#6c757d!important;font-size:1.2rem!important;padding:10px 15px!important}.photo-button:hover{background-color:#5a6268!important}.image-preview-container{display:inline-block;max-width:200px;position:relative}.image-preview{border:2px solid #ddd;border-radius:8px;max-height:200px;max-width:200px}.remove-image-button{align-items:center;background-color:#dc3545!important;border-radius:50%!important;color:#fff;display:flex;font-size:1.5rem!important;height:30px;justify-content:center;line-height:1;padding:0!important;position:absolute;right:-10px;top:-10px;width:30px}.remove-image-button:hover{background-color:#c82333!important}.message-image{border-radius:8px;cursor:pointer;display:block;margin-bottom:5px;max-height:300px;max-width:100%}.message-text{margin-top:5px}.no-messages{color:#999;padding:40px;text-align:center}.admin-container{margin:20px auto;max-width:1000px;padding:20px}.admin-tabs{border-bottom:2px solid #ddd;display:flex;gap:10px;margin-bottom:20px}.admin-tabs button{background:none;border:none;border-bottom:2px solid #0000;color:#666;cursor:pointer;font-size:1rem;margin-bottom:-2px;padding:10px 20px}.admin-tabs 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