:root{--bg: #f5f7fa;--surface: #ffffff;--ink: #1a2332;--muted: #5a6a7a;--border: #d8e0ea;--accent: #1e4d7b;--accent-soft: #e8f0f8;--success: #2f6f4e;--success-soft: #e8f5ee;--warn: #8a5a12;--warn-bg: #fff6e8;--warn-border: #e8c88a;--danger: #9b1c1c;--danger-bg: #fef2f2;--danger-border: #f5c2c2;--info-bg: #eef4fa;--info-border: #b8cfe3;--font: "Source Sans 3", "Segoe UI", sans-serif;--mono: "IBM Plex Mono", ui-monospace, monospace}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:var(--font);color:var(--ink);background:radial-gradient(ellipse 80% 50% at 10% -10%,#dce8f4 0%,transparent 55%),radial-gradient(ellipse 60% 40% at 100% 0%,#e4efe8 0%,transparent 50%),var(--bg);line-height:1.45;-webkit-font-smoothing:antialiased}#root{min-height:100vh}.app{max-width:1100px;margin:0 auto;padding:28px 20px 48px;display:flex;flex-direction:column;gap:28px}html.is-embedded body{background:transparent}html.is-embedded .app{padding:8px 8px 16px}html.is-embedded 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