:root{--text: #6b6375;--text-h: #08060d;--bg: #fff;--border: #e5e4e7;--code-bg: #f4f3ec;--accent: #aa3bff;--accent-bg: rgba(170, 59, 255, .1);--accent-border: rgba(170, 59, 255, .5);--social-bg: rgba(244, 243, 236, .5);--shadow: rgba(0, 0, 0, .1) 0 10px 15px -3px, rgba(0, 0, 0, .05) 0 4px 6px -2px;--sans: system-ui, "Segoe UI", Roboto, sans-serif;--heading: system-ui, "Segoe UI", Roboto, sans-serif;--mono: ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (max-width: 1024px){:root{font-size:16px}}@media (prefers-color-scheme: dark){:root{--text: #9ca3af;--text-h: #f3f4f6;--bg: #16171d;--border: #2e303a;--code-bg: #1f2028;--accent: #c084fc;--accent-bg: rgba(192, 132, 252, .15);--accent-border: rgba(192, 132, 252, .5);--social-bg: rgba(47, 48, 58, .5);--shadow: rgba(0, 0, 0, .4) 0 10px 15px -3px, rgba(0, 0, 0, .25) 0 4px 6px -2px}#social .button-icon{filter:invert(1) brightness(2)}}body{margin:0}#root{width:1126px;max-width:100%;margin:0 auto;text-align:center;border-inline:1px solid var(--border);min-height:100svh;display:flex;flex-direction:column;box-sizing:border-box}h1,h2{font-family:var(--heading);font-weight:500;color:var(--text-h)}h1{font-size:56px;letter-spacing:-1.68px;margin:32px 0}@media (max-width: 1024px){h1{font-size:36px;margin:20px 0}}h2{font-size:24px;line-height:118%;letter-spacing:-.24px;margin:0 0 8px}@media (max-width: 1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);display:inline-flex;border-radius:4px;color:var(--text-h)}code{font-size:15px;line-height:135%;padding:4px 8px;background:var(--code-bg)}:root{--bg: #f3f6fb;--card: #ffffff;--border: #e5e9f0;--text: #1f2937;--muted: #6b7280;--primary: #2563eb;--primary-dark: #1d4ed8;--success: #059669;--danger: #dc2626;--shadow: 0 4px 16px rgba(15, 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var(--border);border-radius:10px;background:#fff;color:var(--text);cursor:pointer;font-size:13px;font-weight:500;transition:background .15s,border-color .15s}.logout-btn:hover{background:#f9fafb;border-color:#cbd5e1}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:16px;box-shadow:var(--shadow)}.card-title{font-size:13px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin:0 0 12px}.store-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.store-row label{font-size:14px;font-weight:500}.store-row select{padding:9px 12px;border:1px solid var(--border);border-radius:10px;font-size:14px;background:#fff;color:var(--text);min-width:220px;transition:border-color .15s,box-shadow .15s}.store-row select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}.sample-link{font-size:13px;color:var(--primary);text-decoration:none;padding:6px 10px;border-radius:8px;background:#eff6ff;transition:background .15s}.sample-link:hover{background:#dbeafe}.upload-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:12px}.upload-row input[type=file]{flex:1;min-width:200px;padding:8px;border:1px dashed var(--border);border-radius:10px;background:#fafbfc;font-size:13px}.upload-row button{padding:10px 18px;border:none;border-radius:10px;background:var(--success);color:#fff;font-weight:600;font-size:14px;cursor:pointer;transition:transform .05s,opacity .15s,background .15s}.upload-row button:hover:not(:disabled){background:#047857}.upload-row button:active:not(:disabled){transform:translateY(1px)}.upload-row button:disabled{opacity:.55;cursor:not-allowed}.status{margin-top:10px;font-size:13px;color:var(--muted);padding:8px 12px;background:#f9fafb;border-radius:8px;border:1px solid var(--border);word-break:break-all}.status.ok{color:var(--success);background:#ecfdf5;border-color:#a7f3d0}.status.err{color:var(--danger);background:#fef2f2;border-color:#fecaca}.chat{background:#f9fafb;border:1px solid var(--border);border-radius:12px;padding:14px;min-height:260px;max-height:52vh;overflow-y:auto;display:flex;flex-direction:column;gap:10px;scroll-behavior:smooth}.msg{display:flex;flex-direction:column;gap:4px;max-width:85%}.msg.user{align-self:flex-end;align-items:flex-end}.msg.assistant{align-self:flex-start;align-items:flex-start}.msg .role{font-size:11px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.msg .bubble{padding:10px 14px;border-radius:14px;line-height:1.5;font-size:14px;white-space:pre-wrap;word-break:break-word;box-shadow:0 1px 2px #0f172a0a}.msg.user .bubble{background:var(--primary);color:#fff;border-bottom-right-radius:4px}.msg.assistant .bubble{background:#fff;color:var(--text);border:1px solid var(--border);border-bottom-left-radius:4px}.msg.assistant .bubble.thinking{color:var(--muted);font-style:italic}.input-row{display:flex;gap:8px;margin-top:12px}.input-row input{flex:1;padding:11px 14px;border:1px solid var(--border);border-radius:10px;font-size:14px;background:#fff;transition:border-color .15s,box-shadow .15s}.input-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}.input-row input:disabled{background:#f3f4f6;color:var(--muted)}.input-row button{padding:11px 20px;border:none;border-radius:10px;background:var(--primary);color:#fff;font-weight:600;font-size:14px;cursor:pointer;transition:background .15s,transform .05s,opacity .15s}.input-row button:hover:not(:disabled){background:var(--primary-dark)}.input-row button:active:not(:disabled){transform:translateY(1px)}.input-row button:disabled{opacity:.5;cursor:not-allowed}.login-card{max-width:420px;margin:60px auto}.login-form{display:flex;flex-direction:column;gap:12px}.login-form input{padding:11px 14px;border:1px solid var(--border);border-radius:10px;font-size:14px;transition:border-color .15s,box-shadow .15s}.login-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}.login-form button{padding:11px 14px;border:none;border-radius:10px;background:var(--primary);color:#fff;font-weight:600;font-size:14px;cursor:pointer;transition:background .15s}.login-form button:hover{background:var(--primary-dark)}@media (max-width: 640px){.app{padding:16px 12px 32px}h1{font-size:19px}.brand-mark{width:32px;height:32px;font-size:16px}.store-row select{min-width:0;flex:1}.upload-row input[type=file]{min-width:0}.msg{max-width:92%}.chat{max-height:46vh}.login-card{margin:30px auto}}