:root{--color-bg:#fff;--color-surface:#f7f8fa;--color-border:#e2e5ea;--color-text:#1a1d23;--color-text-muted:#5b6270;--color-primary:#1f5eff;--color-primary-contrast:#fff;--color-danger:#c0362c;--color-success:#1f8a4c;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--radius:6px;--font-sans:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--color-canvas:#f5f6f8;--color-surface-2:#eef0f4;--color-sidebar-bg:#fff;--color-sidebar-border:var(--color-border);--color-sidebar-hover:#f2f4f8;--color-sidebar-active-bg:#eaf0ff;--color-sidebar-active-text:var(--color-primary);--color-text-subtle:#868d9b;--color-warning:#b7791f;--color-info:#1f5eff;--color-success-soft:#e6f4ec;--color-warning-soft:#fbf1de;--color-danger-soft:#fbe9e7;--color-info-soft:#eaf0ff;--color-neutral-soft:#eef0f4;--focus-ring:2px solid var(--color-primary);--focus-ring-offset:2px;--radius-sm:4px;--radius-lg:12px;--radius-pill:999px;--shadow-sm:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08);--shadow-md:0 4px 12px rgba(16,24,40,.08),0 2px 4px rgba(16,24,40,.06);--space-5:1.25rem;--space-10:2.5rem;--space-12:3rem;--control-h:2.25rem;--control-h-sm:1.75rem;--sidebar-w:248px;--sidebar-w-collapsed:68px;--topbar-h:3.5rem;--font-serif:Georgia,"Times New Roman",Cambria,"Iowan Old Style",serif;--font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;--text-xs:0.75rem;--text-sm:0.85rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.375rem;--text-2xl:1.75rem}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}img,svg{max-width:100%;display:block}