:root{--bg: #0d1117;--bg-2: #161b22;--panel: #21262d;--panel-2: #2d333b;--border: rgba(48, 54, 61, .9);--border-hi: rgba(57, 211, 83, .35);--text: #e6edf3;--muted: #8b949e;--muted-2: #484f58;--accent: #39d353;--accent-2: #ff6b8a;--accent-3: #4ade80;--gold: #d7b46a;--green: #39d353;--radius: 14px;--sidebar-w: 280px;--font: -apple-system, "Segoe UI", "Trebuchet MS", sans-serif;--mono: "SF Mono", "Fira Code", "Cascadia Code", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.5;overflow:hidden}.app{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--bg-2);border-right:1px solid var(--border);display:flex;flex-direction:column;transition:width .22s ease,min-width .22s ease,opacity .22s 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var(--border);border-radius:var(--radius);cursor:pointer;color:var(--text);transition:border-color .15s,background .15s;text-align:left}.provider-current:hover,.model-current:hover{border-color:var(--border-hi);background:var(--panel-2)}.provider-emoji{font-size:20px;flex-shrink:0}.model-emoji{font-size:18px;flex-shrink:0}.provider-info,.model-info{flex:1;display:flex;flex-direction:column;text-align:left;min-width:0}.provider-name,.model-name{font-weight:700;font-size:14px}.provider-tagline,.model-tagline{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.provider-chevron,.model-chevron{color:var(--muted);transition:transform .2s;font-size:12px;flex-shrink:0}.provider-chevron.open,.model-chevron.open{transform:rotate(180deg)}.provider-dropdown,.model-dropdown{position:absolute;top:calc(100% + 4px);left:0;right:0;background:var(--panel-2);border:1px solid var(--border-hi);border-radius:var(--radius);box-shadow:0 16px 48px 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.15s}.api-key-input:focus{border-color:var(--border-hi)}.key-status{font-size:11px;color:var(--accent);font-weight:600;white-space:nowrap}.new-chat-btn{margin:0 12px 8px;padding:10px 14px;background:linear-gradient(135deg,var(--accent),#27a83e);border:none;border-radius:var(--radius);color:#0d1117;font-weight:700;font-size:14px;cursor:pointer;display:flex;align-items:center;gap:8px;transition:transform .1s,box-shadow .15s,filter .15s;flex-shrink:0}.new-chat-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px #39d3534d;filter:brightness(1.1)}.new-chat-btn span{font-size:18px}.conv-list{flex:1;overflow-y:auto;padding:4px 8px;min-height:0}.conv-empty{color:var(--muted-2);font-size:13px;padding:20px 12px;text-align:center}.conv-item{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:10px;cursor:pointer;transition:background 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var(--border-hi);flex-shrink:0}.header-avatar-img{width:100%;height:100%;object-fit:cover}.header-text{display:flex;flex-direction:column}.header-model{font-weight:700;font-size:15px}.header-tagline{color:var(--muted);font-size:12px}.header-status{display:flex;align-items:center}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--muted-2)}.status-dot.streaming{background:var(--accent);animation:pulse 1.4s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;box-shadow:0 0 #39d35366}50%{opacity:.5;box-shadow:0 0 0 6px #39d35300}}.messages{flex:1;overflow-y:auto;padding:24px 0 8px;scroll-behavior:smooth;display:flex;flex-direction:column}.welcome{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;text-align:center;gap:10px;padding:40px 24px}.welcome-avatar-wrap{width:100px;height:100px;border-radius:50%;overflow:hidden;border:3px solid var(--border-hi);box-shadow:0 0 32px #39d35333;margin-bottom:8px}.welcome-avatar-img{width:100%;height:100%;object-fit:cover}.welcome h2{font-size:26px;font-weight:700;background:linear-gradient(135deg,var(--accent),#b2f5c1);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.welcome p{color:var(--muted);font-size:15px}.welcome-hints{margin-top:20px;display:flex;flex-direction:column;gap:8px}.hint{color:var(--muted-2);font-size:13px;padding:8px 16px;background:var(--panel);border-radius:8px;border:1px solid var(--border)}.message{display:flex;align-items:flex-start;gap:10px;padding:6px 20px;max-width:860px;width:100%;margin:0 auto}.message.assistant{flex-direction:row;justify-content:flex-start}.message.user{flex-direction:row;justify-content:flex-end}.message.system{justify-content:center}.message-avatar{width:38px;height:38px;border-radius:50%;overflow:hidden;flex-shrink:0;border:2px solid var(--border);background:var(--panel);margin-top:4px}.message.assistant .message-avatar{border-color:#39d3534d}.message.user .message-avatar{border-color:#ff6b8a4d}.user-avatar{order:2}.avatar-img{width:100%;height:100%;object-fit:cover}.message-bubble{max-width:72%;padding:10px 14px 12px;border-radius:18px;line-height:1.55}.message.assistant .message-bubble{background:var(--panel);border:1px solid var(--border);border-top-left-radius:4px;box-shadow:0 2px 8px #0000004d}.message.user .message-bubble{background:linear-gradient(135deg,#39d35314,#161b22e6);border:1px solid rgba(57,211,83,.2);border-top-right-radius:4px;box-shadow:0 2px 8px #0000004d}.message.system .message-bubble{background:var(--panel);border:1px solid var(--border);border-radius:10px;font-size:13px;color:var(--muted)}.message-role{font-size:11px;font-weight:700;color:var(--muted);margin-bottom:5px;text-transform:uppercase;letter-spacing:.04em}.message.assistant .message-role{color:var(--accent)}.message.user .message-role{color:var(--accent-2);text-align:right}.message-content{font-size:15px;line-height:1.6;white-space:pre-wrap;word-break:break-word;color:var(--text)}.message.user .message-content{text-align:left}.typing{animation:blink 1s steps(2) infinite;color:var(--accent)}@keyframes blink{50%{opacity:0}}.input-area{padding:12px 20px 16px;border-top:1px solid var(--border);background:#0d1117d9;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);flex-shrink:0}.input-form{max-width:800px;margin:0 auto;display:flex;gap:8px;align-items:flex-end;background:var(--panel);border:1px solid var(--border);border-radius:24px;padding:8px 8px 8px 18px;transition:border-color .15s,box-shadow .15s}.input-form:focus-within{border-color:var(--border-hi);box-shadow:0 0 0 3px #39d3531a}.input-box{flex:1;background:none;border:none;color:var(--text);font-family:var(--font);font-size:15px;line-height:1.5;resize:none;outline:none;max-height:200px;padding:6px 0}.input-box::placeholder{color:var(--muted-2)}.input-box:disabled{opacity:.4}.send-btn{background:var(--accent);border:none;border-radius:50%;width:38px;height:38px;cursor:pointer;font-size:15px;color:#0d1117;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s,transform .1s,opacity .15s,box-shadow .15s}.send-btn:hover{transform:scale(1.08);box-shadow:0 4px 12px #39d35366}.send-btn:disabled{opacity:.25;cursor:default;transform:none;box-shadow:none}.send-btn.stop{background:var(--accent-2);color:#fff;box-shadow:none}.send-btn.stop:hover{box-shadow:0 4px 12px #ff6b8a66}.input-footer{max-width:800px;margin:6px auto 0;text-align:center}.input-footer span{font-size:11px;color:var(--muted-2);font-family:var(--mono)}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff12;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#39d35333}@media(max-width:768px){.sidebar{position:absolute;z-index:30;height:100%;box-shadow:4px 0 24px #00000080}.sidebar.collapsed{width:0}.message{padding:5px 12px}.message-bubble{max-width:85%}.input-area{padding:10px 12px 12px}}