:root{--c-bg:#ffffff;--c-white:#ffffff;--c-ink:#111827;--c-muted:#4b5563;--c-subtle:#6b7280;--c-border:#e5e7eb;--c-input-bg:#ffffff;--c-input-border:#d1d5db;--c-input-focus:#1d4ed8;--c-primary:#1d3d8f;--c-cta:#dc2626;--c-cta-hover:#b91c1c;--c-success-bg:#f0fdf4;--c-success-border:#86efac;--c-success-text:#166534;--c-error-bg:#fef2f2;--c-error-border:#fca5a5;--c-error-text:#991b1b;--c-warn-bg:#fffbeb;--c-warn-border:#fcd34d;--c-warn-text:#92400e;--c-readonly-bg:#ffffff;--r:6px;--shadow-sm:0 1px 3px rgba(0,0,0,0.08);--shadow-md:0 4px 16px rgba(0,0,0,0.07);--font:'Open Sans', system-ui, -apple-system, sans-serif}*,::after,::before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font);font-size:15px;line-height:1.55;background:#f3f4f6;color:var(--c-ink);min-height:100vh}