:root{--bg:#f8fafc;--panel:#ffffff;--panel-soft:#f8fafc;--border:#e2e8f0;--text:#0f172a;--muted:#64748b;--primary:#0f172a;--primary-hover:#1e293b;--secondary:#f1f5f9;--secondary-hover:#e2e8f0;--success-bg:#dcfce7;--success-text:#166534;--warning-bg:#fef3c7;--warning-text:#92400e;--info-bg:#dbeafe;--info-text:#1d4ed8;--error-bg:#fee2e2;--error-text:#991b1b;--violet-bg:#ede9fe;--violet-text:#6d28d9;--shadow:0 10px 30px rgba(15,23,42,0.08);--radius:18px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}