*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-page:#1e293b;--bg-card:#0f172a;--bg-el:#1e293b;--bg-deep:#0a1628;--border:#334155;--border-s:#1e293b;--t1:#f1f5f9;--t2:#cbd5e1;--t3:#94a3b8;--t4:#64748b;--t5:#475569;--topbar-bg:#0f172a;--topbar-border:#1e293b;--scroll-track:#0f172a;--scroll-thumb:#334155}[data-theme=light]{--bg-page:#f1f5f9;--bg-card:#fff;--bg-el:#f8fafc;--bg-deep:#eff6ff;--border:#cbd5e1;--border-s:#e2e8f0;--t1:#0f172a;--t2:#1e293b;--t3:#475569;--t4:#64748b;--t5:#94a3b8;--topbar-bg:#fff;--topbar-border:#e2e8f0;--scroll-track:#f1f5f9;--scroll-thumb:#cbd5e1}body{background:var(--bg-page);color:var(--t1);min-height:100vh;font-family:Segoe UI,system-ui,-apple-system,sans-serif;transition:background .2s,color .2s}#root{width:100%;min-height:100vh}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--scroll-track)}::-webkit-scrollbar-thumb{background:var(--scroll-thumb);border-radius:3px}input,select,textarea,button{font-family:inherit}a{color:inherit;text-decoration:none}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media print{body *{visibility:hidden}#bill-print-area,#bill-print-area *{visibility:visible}#bill-print-area{color:#000;background:#fff;width:100%;padding:24px;font-family:Segoe UI,sans-serif;position:fixed;top:0;left:0}}