@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap";:root{--primary: #0a192f;--bg-sidebar: #050b1d;--bg-chat: #0a192f;--accent: #64ffda;--text-main: #e6f1ff;--text-secondary: #8892b0;--border: rgba(255, 255, 255, .08);--input-bg: #112240;--msg-user-bg: rgba(255, 255, 255, .03);--msg-ai-bg: transparent;--radius-btn: 10px}[data-theme=light]{--primary: #ffffff;--bg-sidebar: #f9fafb;--bg-chat: #ffffff;--accent: #0ea5e9;--text-main: #111827;--text-secondary: #4b5563;--border: rgba(0, 0, 0, .08);--input-bg: #f3f4f6;--msg-user-bg: #f9fafb;--msg-ai-bg: transparent}*{margin:0;padding:0;box-sizing:border-box;-webkit-font-smoothing:antialiased}body{background-color:var(--bg-chat);color:var(--text-main);font-family:Inter,sans-serif;height:100vh;margin:0}#root{display:flex;height:100vh;width:100vw;overflow:hidden}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:10px}.app-container{display:flex;width:100%;height:100%}.sidebar{width:280px;height:100%;background-color:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:16px;flex-shrink:0}.main-chat{flex:1;display:flex;flex-direction:column;height:100%;position:relative;background-color:var(--bg-chat)}.new-chat-btn{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--radius-btn);border:1px solid var(--border);background:transparent;color:var(--text-main);font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s;margin-bottom:24px}.new-chat-btn:hover{background:#ffffff0d;border-color:var(--accent)}.history-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:4px}.history-item{padding:10px 12px;border-radius:8px;font-size:.85rem;color:var(--text-secondary);cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:all .2s}.history-item:hover,.history-item.active{background:#ffffff0d;color:var(--text-main)}.messages-wrapper{flex:1;overflow-y:auto;padding:60px 0 160px;width:100%}.message-container{max-width:800px;margin:0 auto;width:90%;padding:24px 0;display:flex;gap:20px}.avatar{width:30px;height:30px;border-radius:6px;flex-shrink:0;display:flex;align-items:center;justify-content:center}.message-text{flex:1;line-height:1.7;font-size:1rem;color:var(--text-main)}.message-row-user{background:var(--msg-user-bg)}.bottom-area{position:absolute;bottom:0;left:0;right:0;padding:24px;background:linear-gradient(transparent,var(--bg-chat) 40%)}.input-box{max-width:800px;margin:0 auto;background:var(--input-bg);border:1px solid var(--border);border-radius:20px;padding:12px 16px;transition:border-color .3s}.input-box:focus-within{border-color:var(--accent)}.input-row{display:flex;align-items:flex-end;gap:12px}.textarea-chat{flex:1;background:transparent;border:none;outline:none;color:var(--text-main);font-size:1rem;resize:none;max-height:200px;padding:8px 0;font-family:inherit}.action-row{display:flex;align-items:center;justify-content:space-between;margin-top:12px;padding-top:8px;border-top:1px solid rgba(255,255,255,.04)}.tools-group{display:flex;gap:6px}.tool-chip{padding:6px 12px;border-radius:20px;border:1px solid var(--border);font-size:.75rem;color:var(--text-secondary);background:transparent;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:6px}.tool-chip:hover,.tool-chip.active{border-color:var(--accent);color:var(--accent);background:#64ffda0d}.icon-btn{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;padding:6px;border-radius:6px;display:flex}.icon-btn:hover{color:var(--text-main);background:#ffffff0d}.send-circle{background:var(--text-main);color:var(--primary);width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:none;cursor:pointer}.send-circle:disabled{opacity:.2;cursor:not-allowed}.empty-hero{max-width:800px;margin:15vh auto 0;text-align:center}.empty-hero h1{font-size:2.2rem;margin-bottom:32px;font-weight:500}.pill-container{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}@media(max-width:768px){.sidebar{display:none}.message-container{padding:20px;width:100%}}