:root{--bg:#ffffff;--bg-elev:#f7fafc;--border: rgba(15,23,42,.12);--text:#0f172a;--muted:#475569;--accent:#0b67c2;--accent-dark:#094a8b;--accent-soft: rgba(11,103,194,.12);--shadow: 0 18px 50px rgba(2,6,23,.1);--radius-xl: 22px;--radius-lg: 16px}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;color:var(--text);background:linear-gradient(#fff,#f7fafc)}.container{max-width:1100px;margin:0 auto;padding:24px}.header{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin:10px 0 22px}.h1{font-size:32px;letter-spacing:-.02em;margin:0}.sub{color:var(--muted);margin:6px 0 0}.grid{display:grid;grid-template-columns:1fr 360px;gap:18px}@media(max-width:920px){.grid{grid-template-columns:1fr}}.card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow);padding:18px}.card h3{margin:0 0 12px;font-size:18px}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.chip{border:1px solid var(--border);background:var(--bg-elev);color:var(--text);padding:10px 12px;border-radius:999px;cursor:pointer;-webkit-user-select:none;user-select:none}.chip[aria-pressed=true]{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-dark);font-weight:700}.qty{display:flex;align-items:center;gap:10px}.btn{border:none;background:var(--accent);color:#fff;padding:12px 14px;border-radius:14px;cursor:pointer;font-weight:700}.btn:hover{filter:brightness(.98)}.btn:disabled{opacity:.55;cursor:not-allowed}.btnGhost{border:1px solid var(--border);background:#fff;color:var(--text);padding:12px 14px;border-radius:14px;cursor:pointer;font-weight:700}.summaryLine{display:flex;justify-content:space-between;gap:10px;margin:8px 0;color:var(--muted)}.total{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:18px;font-weight:800}.sticky{position:sticky;top:16px;align-self:start}.note{color:var(--muted);font-size:13px;margin-top:8px;line-height:1.4}