@import"https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=JetBrains+Mono:wght@300;400;500&display=swap";.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;transition:transform .3s cubic-bezier(.4,0,.2,1)}.sidebar-logo{padding:20px 20px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.logo-icon{width:34px;height:34px;background:linear-gradient(135deg,var(--accent),var(--accent2));border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;color:#fff;box-shadow:0 0 16px var(--accent-glow);font-family:var(--font-display);letter-spacing:-1px}.logo-text{font-size:18px;font-weight:800;background:linear-gradient(90deg,#f0f0ff,#a5b4fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.5px}.new-chat-btn{margin:14px 12px;padding:10px 14px;background:transparent;border:1px solid var(--border);border-radius:8px;color:var(--text-secondary);font-family:var(--font-display);font-size:13px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:8px;transition:all .2s}.new-chat-btn:hover{background:#6366f11a;border-color:var(--border-active);color:var(--text-primary)}.sidebar-section-label{padding:8px 16px 4px;font-size:10px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:1.5px}.chat-history{flex:1;overflow-y:auto;padding:4px 8px}.chat-history::-webkit-scrollbar{width:3px}.chat-history::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:3px}.history-item{padding:9px 12px;border-radius:7px;font-size:13px;font-weight:400;color:var(--text-secondary);cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:all .15s}.history-item:hover{background:#ffffff0d;color:var(--text-primary)}.history-item.active{background:#6366f11f;color:var(--text-primary);border-left:2px solid var(--accent);padding-left:10px}.no-history{padding:12px 16px;font-size:12px;color:var(--text-muted);font-style:italic}.sidebar-footer{padding:14px 12px;border-top:1px solid var(--border)}.model-badge{display:flex;align-items:center;gap:8px;padding:8px 10px;background:#06b6d414;border:1px solid rgba(6,182,212,.2);border-radius:8px;font-size:11px;color:var(--accent2);font-family:var(--font-mono);font-weight:400;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.model-dot{width:6px;height:6px;border-radius:50%;background:var(--accent2);flex-shrink:0;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@media (max-width: 768px){.sidebar{position:fixed;top:0;left:0;bottom:0;z-index:100;transform:translate(-100%);box-shadow:none}.sidebar.open{transform:translate(0);box-shadow:4px 0 24px #00000080}.sidebar-logo{padding:16px 20px 14px}}.chat-area{flex:1;display:flex;flex-direction:column;min-width:0}.chat-header{padding:16px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--bg-chat)}.chat-title{font-size:14px;font-weight:600;color:var(--text-secondary)}.header-actions{display:flex;gap:8px}.icon-btn{width:32px;height:32px;background:transparent;border:1px solid var(--border);border-radius:7px;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;transition:all .15s}.icon-btn:hover{background:#ffffff0d;color:var(--text-secondary)}.messages-container{flex:1;overflow-y:auto;padding:24px 0;scroll-behavior:smooth}.messages-container::-webkit-scrollbar{width:4px}.messages-container::-webkit-scrollbar-track{background:transparent}.messages-container::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:4px}.key-btn{font-size:16px}.key-active{border-color:#22c55e66;color:#22c55e}.key-missing{border-color:#eab30880;color:#eab308;animation:pulse-warn 2s ease-in-out infinite}@keyframes pulse-warn{0%,to{box-shadow:0 0 #eab30800}50%{box-shadow:0 0 0 4px #eab30833}}.no-key-banner{background:linear-gradient(90deg,#eab3081f,#eab3080f);border-bottom:1px solid rgba(234,179,8,.25);padding:8px 24px;font-size:.8rem;color:#ca8a04;display:flex;align-items:center;gap:6px}.banner-link{background:transparent;border:none;color:#eab308;font-weight:600;cursor:pointer;padding:0;font-size:inherit;text-decoration:underline;text-underline-offset:2px}.banner-link:hover{color:#fbbf24}.settings-wrap{position:relative}.active-btn{background:#ffffff14;color:var(--text-primary)!important}.disabled-btn{opacity:.35;cursor:default}.settings-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:#1e1e2e;border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:4px;min-width:180px;box-shadow:0 12px 32px #00000080;z-index:100;animation:dropIn .12s ease}@keyframes dropIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.settings-item{width:100%;padding:9px 14px;background:transparent;border:none;border-radius:7px;font-size:.85rem;text-align:left;cursor:pointer;transition:background .15s;color:var(--text-secondary)}.settings-item:hover{background:#ffffff12;color:var(--text-primary)}.settings-item.danger:hover{background:#ef44441f;color:#f87171}@media (max-width: 768px){.chat-header{padding:14px 16px 14px 58px}.chat-title{font-size:13px}.messages-container{padding:16px 0}}@media (max-width: 480px){.chat-header{padding:12px 12px 12px 54px}}.message-row{display:flex;padding:6px 24px;animation:fadeSlideIn .3s ease}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-row.user{justify-content:flex-end}.message-row.assistant{justify-content:flex-start}.message-bubble{max-width:72%;padding:12px 16px;border-radius:var(--radius);font-size:14px;line-height:1.7;font-weight:400;word-break:break-word;overflow-wrap:anywhere}.message-row.user .message-bubble{background:var(--bg-message-user);border:1px solid rgba(99,102,241,.2);color:var(--text-primary);border-bottom-right-radius:3px}.message-row.assistant .message-bubble{background:var(--bg-message-ai);border:1px solid var(--border);color:var(--text-primary);border-bottom-left-radius:3px}.message-avatar{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0;margin-top:4px}.message-row.assistant .message-avatar{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;margin-right:10px;box-shadow:0 0 12px var(--accent-glow)}.message-row.user .message-avatar{background:#ffffff1a;color:var(--text-secondary);margin-left:10px;order:2}.message-row.user .message-bubble{order:1}.code-block-wrap{margin:10px 0;border-radius:8px;border:1px solid rgba(99,102,241,.25);overflow:hidden}.code-block-header{display:flex;align-items:center;justify-content:space-between;background:#6366f11f;padding:6px 12px;border-bottom:1px solid rgba(99,102,241,.15)}.code-lang{font-family:var(--font-mono);font-size:11px;color:#a5b4fc;text-transform:uppercase;letter-spacing:.8px}.copy-code-btn{display:flex;align-items:center;gap:5px;background:transparent;border:1px solid rgba(255,255,255,.12);border-radius:5px;color:#94a3b8;font-size:11px;font-family:var(--font-display);padding:3px 8px;cursor:pointer;transition:all .15s}.copy-code-btn:hover{background:#ffffff14;color:#e2e8f0;border-color:#ffffff40}.code-block-wrap pre{background:#0d0d1a;padding:14px 16px;margin:0;overflow-x:auto;font-family:var(--font-mono);font-size:13px;line-height:1.65}.message-bubble pre{background:#0006;border:1px solid var(--border);border-radius:8px;padding:12px 14px;margin:10px 0;overflow-x:auto;font-family:var(--font-mono);font-size:13px}.message-bubble code{font-family:var(--font-mono);background:#6366f126;border:1px solid rgba(99,102,241,.25);padding:2px 6px;border-radius:4px;font-size:12px;color:#c4b5fd}.message-bubble pre code,.code-block-wrap pre code{background:transparent;border:none;padding:0;color:#dde1ff;font-size:13px}.typing-dots{display:flex;gap:4px;padding:4px 0}.typing-dots span{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:bounce 1.2s infinite}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-6px)}}.message-bubble strong{color:#e2e8f0;font-weight:700}.message-bubble em{color:#c4b5fd;font-style:italic}@media (max-width: 768px){.message-row{padding:5px 14px}.message-bubble{max-width:85%;padding:10px 14px;font-size:13px}.message-avatar{width:24px;height:24px;font-size:10px}.message-row.assistant .message-avatar{margin-right:8px}.message-row.user .message-avatar{margin-left:8px}.code-block-wrap pre,.message-bubble pre{padding:10px 12px;font-size:12px}.message-bubble code{font-size:11px}}@media (max-width: 480px){.message-row{padding:4px 10px}.message-bubble{max-width:90%;padding:8px 12px;font-size:13px}.message-avatar{width:22px;height:22px;font-size:9px}}.welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 24px;text-align:center;animation:fadeSlideIn .5s ease}.welcome-logo{width:64px;height:64px;background:linear-gradient(135deg,var(--accent),var(--accent2));border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:800;color:#fff;margin-bottom:20px;box-shadow:0 0 40px var(--accent-glow),0 0 80px #06b6d426;font-family:var(--font-display);letter-spacing:-2px}.welcome h1{font-size:32px;font-weight:800;background:linear-gradient(90deg,#f0f0ff,#a5b4fc,#67e8f9);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-1px;margin-bottom:10px}.welcome p{font-size:14px;color:var(--text-secondary);max-width:380px;line-height:1.6;margin-bottom:32px}.suggestion-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%;max-width:480px}.suggestion-card{padding:14px 16px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);text-align:left;cursor:pointer;transition:all .2s}.suggestion-card:hover{border-color:var(--border-active);background:#6366f114;transform:translateY(-1px)}.suggestion-card .card-icon{font-size:18px;margin-bottom:6px}.suggestion-card .card-title{font-size:13px;font-weight:600;color:var(--text-primary);margin-bottom:2px}.suggestion-card .card-sub{font-size:11px;color:var(--text-muted)}@media (max-width: 768px){.welcome{padding:32px 20px}.welcome-logo{width:52px;height:52px;font-size:22px;border-radius:14px}.welcome h1{font-size:26px}.welcome p{font-size:13px;margin-bottom:24px;max-width:320px}.suggestion-grid{max-width:400px;gap:8px}.suggestion-card{padding:12px 14px}}@media (max-width: 480px){.welcome{padding:24px 16px}.welcome h1{font-size:22px}.suggestion-grid{grid-template-columns:1fr;max-width:300px}.suggestion-card .card-title{font-size:12px}.suggestion-card .card-sub{font-size:10px}}.input-area{padding:16px 24px 20px;background:var(--bg-chat);border-top:1px solid var(--border)}.input-box{display:flex;align-items:flex-end;gap:10px;background:var(--bg-input);border:1px solid var(--border);border-radius:14px;padding:10px 12px 10px 16px;transition:border-color .2s,box-shadow .2s}.input-box:focus-within{border-color:var(--border-active);box-shadow:0 0 0 3px var(--accent-glow)}.input-box textarea{flex:1;background:transparent;border:none;outline:none;color:var(--text-primary);font-family:var(--font-display);font-size:14px;font-weight:400;resize:none;line-height:1.6;max-height:180px;min-height:24px}.input-box textarea::placeholder{color:var(--text-muted)}.send-btn{width:36px;height:36px;flex-shrink:0;background:linear-gradient(135deg,var(--accent),#818cf8);border:none;border-radius:9px;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:15px;transition:all .2s;box-shadow:0 0 12px var(--accent-glow)}.send-btn:hover:not(:disabled){transform:scale(1.05);box-shadow:0 0 20px var(--accent-glow)}.send-btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.input-footer{text-align:center;margin-top:10px;font-size:11px;color:var(--text-muted);font-family:var(--font-mono)}@media (max-width: 768px){.input-area{padding:12px 14px 16px}.input-box{padding:8px 10px 8px 14px;border-radius:12px}.input-box textarea{font-size:16px}.input-footer{font-size:10px;margin-top:8px}}@media (max-width: 480px){.input-area{padding:10px 10px 14px}.input-box{gap:8px;padding:8px 8px 8px 12px}.send-btn{width:34px;height:34px}.input-footer{font-size:9px}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-base: #0a0a0f;--bg-sidebar: #0e0e16;--bg-chat: #0a0a0f;--bg-input: #13131f;--bg-message-user: #1a1a2e;--bg-message-ai: #0e0e16;--border: rgba(255,255,255,.07);--border-active: rgba(99, 102, 241, .5);--accent: #6366f1;--accent-glow: rgba(99,102,241,.3);--accent2: #06b6d4;--text-primary: #f0f0ff;--text-secondary: #b0b0cc;--text-muted: #6e6e90;--radius: 12px;--font-display: "Syne", sans-serif;--font-mono: "JetBrains Mono", monospace;--sidebar-width: 260px}body{font-family:var(--font-display);background:var(--bg-base);color:var(--text-primary);height:100vh;overflow:hidden}.app{display:flex;height:100vh;position:relative}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:90;animation:fadeIn .2s ease}.sidebar-overlay.visible{display:block}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.sidebar-toggle{display:none;position:fixed;top:14px;left:14px;z-index:110;width:38px;height:38px;background:var(--bg-sidebar);border:1px solid var(--border);border-radius:9px;color:var(--text-secondary);cursor:pointer;align-items:center;justify-content:center;transition:all .2s;box-shadow:0 2px 12px #0000004d}.sidebar-toggle:hover{background:#6366f11a;border-color:var(--border-active);color:var(--text-primary)}.sidebar-toggle:active{transform:scale(.93)}@media (max-width: 768px){.sidebar-toggle{display:flex}.sidebar-overlay.visible{display:block}}