.chat-main{width:100%;min-height:100vh;background:linear-gradient(135deg,#ff6b35,#f7931e 50%,#ff1744);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;position:relative}.chat-header{padding:60px 0 80px;color:white}.header-content{max-width:1200px;margin:0 auto;padding:0 20px;gap:20px}.back-button,.header-content{display:flex;align-items:center}.back-button{background:none;border:none;color:white;cursor:pointer;padding:12px;border-radius:50%;justify-content:center;transition:background-color .2s ease;min-width:48px;height:48px}.back-button:hover{background-color:rgba(255,255,255,.1)}.header-text{flex:1}.header-text h1{font-size:48px;font-weight:700;margin:0 0 8px;line-height:1.1}.header-text p{font-size:18px;opacity:.9;margin:0}.chat-content{background:rgba(255,255,255,.95);backdrop-filter:blur(10px);min-height:calc(100vh - 140px);border-radius:40px 40px 0 0;position:relative;z-index:1}.content-wrapper{max-width:1200px;margin:0 auto;padding:40px 20px 20px;display:flex;flex-direction:column;height:calc(100vh - 200px)}.chat-messages{flex:1;overflow-y:auto;padding:20px 0;display:flex;flex-direction:column;gap:16px;margin-bottom:20px}.message{display:flex;max-width:70%}.user-message{align-self:flex-end}.bot-message{align-self:flex-start}.message-content{padding:12px 16px;border-radius:18px;position:relative}.user-message .message-content{background:linear-gradient(135deg,#ff6b35,#f7931e);color:white;border-bottom-right-radius:4px}.bot-message .message-content{background:#f5f5f5;color:#333;border-bottom-left-radius:4px}.message-content p{margin:0 0 8px;line-height:1.4}.message-time{font-size:12px;opacity:.7}.chat-input-section{border-top:1px solid #e0e0e0;padding:20px 0 0;background:rgba(255,255,255,.95)}.chat-input-wrapper{display:flex;gap:12px;align-items:center}.chat-input{flex:1;padding:14px 16px;border:2px solid #e0e0e0;border-radius:25px;font-size:16px;outline:none;transition:border-color .2s ease}.chat-input:focus{border-color:#ff6b35}.send-button{background:linear-gradient(135deg,#ff6b35,#f7931e);border:none;width:48px;height:48px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .2s ease}.send-button:hover{transform:scale(1.05)}.send-button:active{transform:scale(.95)}.chat-loading{display:flex;align-items:center;justify-content:center;height:100vh;color:white}.loading-spinner{font-size:18px}@media (max-width:768px){.header-text h1{font-size:32px}.content-wrapper{padding:20px 16px 16px}.message{max-width:85%}.chat-input{font-size:16px}}@media (max-width:480px){.chat-header{padding:40px 0 60px}.header-text h1{font-size:28px}.header-text p{font-size:16px}.content-wrapper{height:calc(100vh - 160px)}}