@import "https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500&family=Zen+Kaku+Gothic+New:wght@400;500;700;900&family=Shippori+Mincho+B1:wght@400;500;600;700;800&display=swap";#root{height:100vh}*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#fafafa;--surface:#fff;--surface-2:#f5f5f4;--surface-3:#e7e5e4;--border:#e2e0de;--border-hover:#c7c5c2;--text:#1c1917;--text-secondary:#44403c;--text-muted:#78716c;--accent:#3730a3;--accent-light:#e0e7ff;--accent-hover:#312e81;--accent-surface:#eef2ff;--user-bg:#3730a3;--user-text:#fff;--assistant-bg:#fff;--error:#dc2626;--error-bg:#fef2f2;--success:#16a34a;--success-bg:#f0fdf4;--warning:#d97706;--warning-bg:#fffbeb;--radius:12px;--radius-sm:8px;--radius-xs:6px;--shadow-sm:0 1px 2px #1c19170a;--shadow-md:0 2px 8px #1c19170f, 0 1px 2px #1c19170a;--shadow-lg:0 4px 16px #1c191714, 0 2px 4px #1c19170a;--font-mono:"IBM Plex Mono", "SF Mono", monospace;--font-sans:"Noto Sans JP", 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