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768px){.desktop-back-button{display:none}.signup-container{grid-template-columns:1fr;gap:0}.signup-left{display:block;padding:20px;background:#f8f9fa;border-bottom:1px solid #e5e7eb}.signup-right{width:100%;padding:20px;margin:0}.form-container{max-height:calc(100vh - 200px);width:100%;margin:0;padding:0;overflow-y:auto;scrollbar-width:none;-ms-overflow-style:none}.signup-form{width:100%;max-width:none}.signup-left .signup-header{text-align:center}.signup-left .signup-title{font-size:24px;margin-bottom:8px}.signup-left .signup-subtitle{font-size:14px;margin-bottom:20px}.signup-left .progress-indicator{margin:20px 0}.signup-left .auth-footer{display:none}.signup-container{width:100vw;height:100vh;margin:0;padding:0;max-width:none;border-radius:0}.signup-right{width:100vw;height:calc(100vh - 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h3{margin:0;font-size:1.5rem;font-weight:600;color:#000}.messaging-close-button{background:none;border:none;font-size:24px;color:#6c757d;cursor:pointer;padding:4px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s ease}.messaging-close-button:hover{background:#e5e7eb;color:#000}.messaging-content{display:flex;flex:1;min-height:0;overflow:hidden}.messaging-conversations-sidebar{width:300px;background:#f8f9fa;border-right:1px solid #e5e7eb;display:flex;flex-direction:column}.messaging-conversations-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #e5e7eb;background:#fff}.messaging-conversations-header 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h4{margin:0;font-size:1.1rem;font-weight:600;color:#000}.messaging-messages-list{flex:1;overflow-y:auto;padding:20px;scrollbar-width:none;-ms-overflow-style:none;min-height:0}.messaging-messages-list::-webkit-scrollbar{display:none}.messaging-message{margin-bottom:16px;display:flex;flex-direction:column}.messaging-message.sent{align-items:flex-end}.messaging-message.received{align-items:flex-start}.messaging-message-content{max-width:70%;padding:12px 16px;border-radius:12px;position:relative}.messaging-message.sent .messaging-message-content{background:#000;color:#fff;border-bottom-right-radius:4px}.messaging-message.received .messaging-message-content{background:#f3f4f6;color:#000;border:1px solid #e5e7eb;border-bottom-left-radius:4px}.messaging-message-text{font-size:.9rem;line-height:1.4;margin-bottom:4px}.messaging-message-time{font-size:.75rem;opacity:.7}.messaging-message-input-area{display:flex;gap:12px;padding:16px 20px;border-top:1px solid #e5e7eb;background:#f8f9fa}.messaging-message-input{flex:1;border:2px solid #e5e7eb;border-radius:8px;padding:12px 16px;font-size:.9rem;font-family:inherit;resize:none;outline:none;transition:all .2s ease;background:#fff;color:#000;min-height:20px;max-height:100px}.messaging-message-input:focus{border-color:#000;box-shadow:0 0 0 3px #0000001a}.messaging-send-button{background:#000;color:#fff;border:none;padding:12px;border-radius:8px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;min-width:44px;height:44px}.messaging-send-button:hover:not(:disabled){background:#333;transform:translateY(-1px)}.messaging-send-button:disabled{background:#9ca3af;cursor:not-allowed;transform:none}.messaging-no-conversation{display:flex;align-items:center;justify-content:center;height:100%;color:#6b7280;font-size:1rem}.messaging-loading{display:flex;align-items:center;justify-content:center;padding:20px;color:#6b7280;font-size:.9rem}.messaging-empty-state{display:flex;align-items:center;justify-content:center;padding:40px 20px;color:#9ca3af;font-size:.9rem;text-align:center}@media (max-width: 768px){.messaging-overlay{padding:0;align-items:stretch}.messaging-container{max-width:100vw;height:100vh;max-height:100vh;border-radius:0;margin:0;padding:0}.messaging-content{flex-direction:column;height:100%;min-height:0}.messaging-conversations-sidebar{width:100%;max-height:200px;border-right:none;border-bottom:1px solid #e5e7eb}.messaging-conversations-list{max-height:150px;-webkit-overflow-scrolling:touch}.messaging-conversation-item{padding:12px 16px}.messaging-conversation-time{display:none}.messaging-messages-area{flex:1;min-height:0;display:flex;flex-direction:column}.messaging-messages-list{flex:1;padding:12px 12px 24px;-webkit-overflow-scrolling:touch;min-height:0;overflow-y:auto}.messaging-message-content{max-width:85%}.messaging-message-input-area{padding:10px 12px;position:sticky;bottom:0;z-index:10;background:#f8f9fa;padding-bottom:calc(10px + env(safe-area-inset-bottom));flex-shrink:0}.messaging-header{position:sticky;top:0;z-index:20;flex-shrink:0}.messaging-message-input{min-height:36px;font-size:1rem}.messaging-send-button{min-width:48px;height:48px}}