:root{--background: 0 0% 100%;--foreground: 0 0% 3.9%;--card: 0 0% 100%;--card-foreground: 0 0% 3.9%;--popover: 0 0% 100%;--primary: 0 0% 9%;--primary-foreground: 0 0% 98%;--secondary: 0 0% 96.1%;--secondary-foreground: 0 0% 9%;--muted: 0 0% 96.1%;--muted-foreground: 0 0% 45.1%;--accent: 0 0% 96.1%;--accent-foreground: 0 0% 9%;--destructive: 0 72% 51%;--border: 0 0% 89.8%;--input: 0 0% 89.8%;--ring: 0 0% 63%;--radius: .5rem;--radius-sm: calc(var(--radius) - 4px);--radius-md: calc(var(--radius) - 2px);--radius-lg: var(--radius);--radius-xl: calc(var(--radius) + 4px);--font-sans: "Geist", ui-sans-serif, system-ui, -apple-system, sans-serif;--font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;color-scheme:light}*{box-sizing:border-box}html,body{margin:0}body{background:hsl(var(--background));color:hsl(var(--foreground));font-family:var(--font-sans);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:hsl(var(--foreground));font-weight:500;text-decoration:none;text-underline-offset:4px}a:hover{text-decoration:underline}::selection{background:hsl(var(--foreground) / .1)}.app{max-width:680px;margin:0 auto;padding:56px 24px 220px}.brand{display:flex;align-items:center;gap:10px}.brand h1{font-family:var(--font-mono);font-size:15px;font-weight:600;letter-spacing:-.01em;margin:0}.lede{margin:12px 0 0;color:hsl(var(--muted-foreground));font-size:15px;max-width:60ch}.card{margin-top:24px;padding:24px;background:hsl(var(--card));color:hsl(var(--card-foreground));border:1px solid hsl(var(--border));border-radius:var(--radius-xl);box-shadow:0 1px 2px #0000000d}.tabs{display:inline-flex;align-items:center;gap:4px;height:36px;padding:4px;margin:28px 0 0;background:hsl(var(--muted));border-radius:var(--radius-lg)}.tabs+.card{margin-top:16px}.panel{margin-top:16px}.tab{display:inline-flex;align-items:center;height:28px;padding:0 12px;border:none;background:none;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:13px;font-weight:500;color:hsl(var(--muted-foreground));cursor:pointer;transition:color .15s,background .15s,box-shadow .15s}.tab:hover{color:hsl(var(--foreground))}.tab[aria-selected=true]{background:hsl(var(--background));color:hsl(var(--foreground));box-shadow:0 1px 2px #00000014}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:36px;padding:0 16px;font-family:var(--font-sans);font-size:14px;font-weight:500;color:hsl(var(--foreground));background:hsl(var(--background));border:1px solid hsl(var(--border));border-radius:var(--radius-md);box-shadow:0 1px 2px #0000000d;cursor:pointer;white-space:nowrap;transition:background .15s,color .15s,border-color .15s,box-shadow .15s,opacity .15s}.btn:hover:not(:disabled){background:hsl(var(--accent));color:hsl(var(--accent-foreground))}.btn:focus-visible{outline:none;border-color:hsl(var(--ring));box-shadow:0 0 0 3px hsl(var(--ring) / .4)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:hsl(var(--primary));color:hsl(var(--primary-foreground));border-color:hsl(var(--primary))}.btn-primary:hover:not(:disabled){background:hsl(var(--primary) / .9);color:hsl(var(--primary-foreground));border-color:transparent}.btn-sm{height:32px;padding:0 12px;font-size:13px}.field{width:100%;height:36px;padding:0 12px;font-family:var(--font-sans);font-size:14px;color:hsl(var(--foreground));background:hsl(var(--background));border:1px solid hsl(var(--input));border-radius:var(--radius-md);box-shadow:0 1px 2px #0000000d;transition:border-color .15s,box-shadow .15s}.field::placeholder{color:hsl(var(--muted-foreground))}.field:focus{outline:none;border-color:hsl(var(--ring));box-shadow:0 0 0 3px hsl(var(--ring) / .4)}textarea.field{height:auto;padding:10px 12px;resize:vertical;line-height:1.6}.banner{margin-top:16px;padding:12px 16px;background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:var(--radius-lg);font-size:14px;color:hsl(var(--foreground))}.banner code{font-family:var(--font-mono);font-size:12.5px;background:hsl(var(--muted));padding:1px 5px;border-radius:var(--radius-sm)}.chat-window{border:1px solid hsl(var(--border));border-radius:var(--radius-lg);background:hsl(var(--background));overflow:hidden}.thread{display:flex;flex-direction:column;gap:16px;padding:16px;min-height:150px}.row{display:flex;gap:10px;align-items:flex-start}.row.user{flex-direction:row-reverse}.avatar{flex:0 0 32px;width:32px;height:32px;border-radius:9999px;display:grid;place-items:center;font-family:var(--font-mono);font-size:11px;font-weight:500}.avatar.ai{background:hsl(var(--muted));color:hsl(var(--muted-foreground));border:1px solid hsl(var(--border))}.avatar.me{background:hsl(var(--primary));color:hsl(var(--primary-foreground))}.bubble{max-width:80%;padding:8px 12px;border-radius:var(--radius-lg);font-size:14px;line-height:1.5;white-space:pre-wrap;word-break:break-word}.bubble.assistant{background:hsl(var(--muted));color:hsl(var(--foreground))}.bubble.user{background:hsl(var(--primary));color:hsl(var(--primary-foreground))}.composer{display:flex;gap:8px;padding:12px;border-top:1px solid hsl(var(--border));background:hsl(var(--muted) / .4)}.empty{color:hsl(var(--muted-foreground));font-size:14px;text-align:center;padding:36px 0}.result{padding:16px;background:hsl(var(--muted));border-radius:var(--radius-lg);color:hsl(var(--foreground));font-size:14px;line-height:1.6;white-space:pre-wrap}.progress-row{display:flex;align-items:center;gap:12px;font-family:var(--font-mono);font-size:12px;color:hsl(var(--muted-foreground))}progress{width:160px;height:8px;accent-color:hsl(var(--primary))}.passage{font-size:16px;line-height:1.75;color:hsl(var(--foreground))}.popover{background:hsl(var(--popover));color:hsl(var(--foreground));border:1px solid hsl(var(--border));border-radius:var(--radius-md);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;padding:12px;animation:fade-in .18s ease-out}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.icon-btn{display:inline-grid;place-items:center;width:24px;height:24px;border:none;background:none;border-radius:var(--radius-sm);color:hsl(var(--muted-foreground));font-size:13px;line-height:1;cursor:pointer}.icon-btn:hover{background:hsl(var(--accent));color:hsl(var(--accent-foreground))}.tip-label{font-family:var(--font-mono);font-size:11px;color:hsl(var(--muted-foreground))}.muted{color:hsl(var(--muted-foreground))}.error{color:hsl(var(--destructive));font-size:13px}.blink{animation:blink 1s steps(1) infinite;color:hsl(var(--foreground))}@keyframes blink{50%{opacity:0}}