:root{--bg-color:#0f172a;--panel-bg:#1e293bb3;--border-color:#ffffff1a;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-color:#3b82f6;--accent-hover:#2563eb;--user-msg-bg:#3b82f633;--ai-msg-bg:#1e293b80}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);background-image:radial-gradient(at 0 0,#3b82f626 0,#0000 50%),radial-gradient(at 100% 100%,#8b5cf626 0,#0000 50%);justify-content:center;align-items:center;height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;display:flex;overflow:hidden}.app-container{background:var(--panel-bg);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-color);border-radius:24px;flex-direction:row;width:100%;max-width:1200px;height:90vh;display:flex;overflow:hidden;box-shadow:0 25px 50px -12px #00000080}.sidebar{border-right:1px solid var(--border-color);background:#0f172a80;flex-direction:column;width:280px;padding:16px;display:flex}.new-chat-btn{border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;background:0 0;border-radius:12px;align-items:center;gap:8px;margin-bottom:16px;padding:12px;font-weight:500;transition:all .2s;display:flex}.new-chat-btn:hover{border-color:var(--accent-color);background:#ffffff0d}.session-list{flex-direction:column;flex:1;gap:8px;display:flex;overflow-y:auto}.session-list::-webkit-scrollbar{width:4px}.session-list::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.session-item{cursor:pointer;color:var(--text-secondary);background:0 0;border-radius:10px;justify-content:space-between;align-items:center;padding:12px;font-size:.9rem;transition:background .2s;display:flex}.session-item:hover{background:#ffffff0d}.session-item.active{color:var(--text-primary);border-left:3px solid var(--accent-color);background:#3b82f626}.session-title{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.delete-session-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:4px;display:flex}.delete-session-btn:hover{color:#ef4444;background:#ef44441a}.main-content{flex-direction:column;flex:1;height:100%;display:flex}.header{border-bottom:1px solid var(--border-color);text-align:left;flex-direction:row;justify-content:flex-start;align-items:center;gap:16px;padding:12px 24px;display:flex}.header-icon{background:0 0;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;display:flex;box-shadow:0 4px 12px #0006}.header h1{letter-spacing:-.025em;margin-bottom:2px;font-size:1.1rem;font-weight:600}.header p{color:var(--text-secondary);font-size:.8rem}.chat-area{scroll-behavior:smooth;flex-direction:column;flex:1;gap:24px;padding:24px;display:flex;overflow-y:auto}.chat-area::-webkit-scrollbar{width:8px}.chat-area::-webkit-scrollbar-track{background:0 0}.chat-area::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.message-wrapper{flex-direction:column;max-width:80%;animation:.3s ease-out fadeIn;display:flex}.message-wrapper.user{align-self:flex-end}.message-wrapper.ai{align-self:flex-start}.message{border-radius:16px;padding:16px;font-size:.95rem;line-height:1.5;position:relative}.message.user{background:var(--user-msg-bg);color:#eff6ff;border:1px solid #3b82f64d;border-bottom-right-radius:4px}.message.ai{background:var(--ai-msg-bg);border:1px solid var(--border-color);color:var(--text-primary);border-bottom-left-radius:4px}.message-label{color:var(--text-secondary);margin-bottom:6px;margin-left:4px;font-size:.75rem;font-weight:500}.user .message-label{text-align:right;margin-right:4px}.generated-image{border:1px solid var(--border-color);border-radius:12px;max-width:100%;margin-top:12px;box-shadow:0 10px 15px -3px #0003}.input-area{border-top:1px solid var(--border-color);background:#0f172a4d;padding:20px 24px}.input-container{border:1px solid var(--border-color);background:#1e293bcc;border-radius:16px;gap:12px;padding:8px;transition:border-color .2s,box-shadow .2s;display:flex}.input-container:focus-within{border-color:#3b82f680;box-shadow:0 0 0 2px #3b82f61a}.chat-input{color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;padding:8px 12px;font-family:inherit;font-size:.95rem}.chat-input::placeholder{color:var(--text-secondary)}.action-buttons{gap:8px;display:flex}.btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:10px;justify-content:center;align-items:center;width:40px;height:40px;transition:all .2s;display:flex}.btn:hover{color:var(--text-primary);background:#ffffff0d}.btn.primary{background:var(--accent-color);color:#fff}.btn.primary:hover{background:var(--accent-hover);transform:translateY(-1px)}.btn.primary:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.typing-indicator{align-items:center;gap:4px;padding:8px 12px;display:flex}.typing-dot{background-color:var(--text-secondary);border-radius:50%;width:6px;height:6px;animation:1.4s ease-in-out infinite both typing}.typing-dot:first-child{animation-delay:-.32s}.typing-dot:nth-child(2){animation-delay:-.16s}@keyframes typing{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.image-preview-container{margin-bottom:12px;display:flex}.image-preview{border:1px solid #3b82f64d;border-radius:8px;display:inline-block;position:relative;overflow:hidden;box-shadow:0 4px 6px -1px #0000001a}.image-preview img{max-height:100px;display:block}.clear-image-btn{color:#fff;cursor:pointer;background:#0f172ab3;border:none;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;transition:background .2s;display:flex;position:absolute;top:4px;right:4px}.clear-image-btn:hover{background:#ef4444e6}