:root{--bg: #07110f;--bg-grad-1: #06100e;--bg-grad-2: #0b211a;--surface: #0e1c19;--surface-raised: #142521;--border: #213a34;--primary: #68f7c1;--primary-deep: #27c993;--text: #f3fbf8;--text-muted: #8fa9a1;--user-bubble: #1e6b57;--assistant-bubble: #13241f;--danger: #ff7d79;--r-sm: 12px;--r-md: 18px;--r-lg: 26px;--r-round: 999px;font-synthesis:none;-webkit-text-size-adjust:100%;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:radial-gradient(125% 120% at 50% 0%,var(--bg-grad-2) 0%,var(--bg-grad-1) 55%,var(--bg) 100%);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow:hidden}button{font:inherit;color:inherit;cursor:pointer;border:none;background:none}textarea{font:inherit}.app{display:flex;flex-direction:column;height:100%;max-width:820px;margin:0 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