:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f5f7fb;--surface:#fff;--text:#11213a;--muted-text:#5e6a7f;--border:#dbe3ef;--sidebar-start:#19365f;--sidebar-end:#0f2341;--accent:#2f6fef}*{box-sizing:border-box}html,body{background:radial-gradient(circle at 10% 0%, #e7ecf7 0%, var(--bg) 40%);min-height:100%;color:var(--text);margin:0;font-family:Cambria,Times New Roman,serif}a{color:inherit;text-decoration:none}.app-shell{grid-template-columns:240px 1fr;min-height:100vh;display:grid}.sidebar{background:linear-gradient(180deg, var(--sidebar-start), var(--sidebar-end));color:#eef4ff;border-right:1px solid #ffffff14;padding:28px 18px}.sidebar-title{letter-spacing:.04em;margin-bottom:20px;font-size:1.2rem;font-weight:700}.sidebar-nav{flex-direction:column;gap:10px;display:flex}.sidebar-link{color:#d9e6ff;background:#ffffff0f;border-radius:10px;padding:11px 12px;transition:transform .12s,background-color 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