:root{--brand: #f2b600;--brand-dark: #c79600;--ink: #1c1c1e;--bg: #f2f2f7;--surface: #ffffff;--surface-2: #e5e5ea;--text: #1c1c1e;--text-2: #3a3a3c;--muted: #8e8e93;--divider: #d1d1d6;--divider-strong: #c7c7cc;--success: #16a34a;--danger: #dc2626;--radius: 14px;--radius-lg: 20px;--shadow-card: 0 1px 2px rgba(0, 0, 0, .04);--shadow-bar: 0 -1px 0 var(--divider)}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,system-ui,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}#root{min-height:100dvh}.screen{max-width:560px;margin:0 auto;padding:20px 16px;min-height:100dvh}.screen--center{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:14px}h1{font-size:26px;line-height:1.2;letter-spacing:-.02em;margin:4px 0 0;font-weight:700}h2{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:26px 8px 10px;font-weight:600}.muted{color:var(--muted);margin:0;font-size:15px;line-height:1.45}.hint{color:var(--muted);font-size:13px;margin:0}.error{color:var(--danger);font-weight:500;font-size:15px}.brand{font-weight:800;font-size:22px;color:var(--ink);letter-spacing:-.03em}.brand span{color:var(--brand)}.brand--sm{font-size:17px}.hero{display:flex;flex-direction:column;align-items:center;gap:14px;width:100%;max-width:360px}.hero__logo{width:76px;height:76px;object-fit:contain;margin-bottom:4px}.code-form{display:flex;flex-direction:column;gap:12px;width:100%;max-width:360px;margin-top:6px}.code-input{font-size:26px;font-weight:600;text-align:center;letter-spacing:.32em;padding:18px 16px;border:1px solid var(--divider);border-radius:var(--radius);text-transform:uppercase;background:var(--surface);color:var(--text);transition:border-color .15s}.code-input::placeholder{color:var(--muted);letter-spacing:.2em;font-weight:500}.code-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px #f2b60040}.btn{font-size:16px;font-weight:600;padding:15px 18px;border-radius:var(--radius);border:none;cursor:pointer;font-family:inherit;transition:opacity .15s,transform .05s}.btn:active{transform:scale(.985)}.btn--primary{background:var(--ink);color:#fff}.btn--primary:disabled{opacity:.5}.btn--ghost{background:transparent;color:var(--text-2);border:1px solid var(--divider)}.btn--add{width:38px;height:38px;border-radius:50%;background:var(--brand);color:var(--ink);font-size:22px;font-weight:700;line-height:1;display:flex;align-items:center;justify-content:center}.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-bottom:4px}.topbar__code{font-size:13px;color:var(--muted);margin-top:2px}.btn--chip{background:var(--surface);border:1px solid var(--divider);color:var(--text-2);font-size:14px;font-weight:500;padding:8px 14px;border-radius:999px;cursor:pointer}.product-list{list-style:none;margin:0;padding:0;background:var(--surface);border:1px solid var(--divider);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-card)}.product{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;border-top:1px solid var(--divider);min-height:62px}.product:first-child{border-top:none}.product--out{opacity:.55}.product__info{display:flex;flex-direction:column;gap:3px;min-width:0}.product__title{font-weight:500;font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.product__price{color:var(--muted);font-size:14px}.badge--out{font-size:13px;color:var(--danger);font-weight:600;white-space:nowrap}.stepper{display:flex;align-items:center;gap:14px}.stepper__btn{width:34px;height:34px;border-radius:50%;border:1px solid var(--divider-strong);background:var(--surface);color:var(--ink);font-size:19px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}.stepper__qty{min-width:18px;text-align:center;font-weight:600;font-size:16px}.checkout-bar{position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--divider);padding-bottom:env(safe-area-inset-bottom);z-index:20}.checkout-bar__inner{max-width:560px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 16px}.checkout-bar__summary{font-size:15px;color:var(--text-2);line-height:1.3}.checkout-bar__summary strong{color:var(--text);font-size:17px}.checkout-bar .btn--primary{padding:13px 22px;white-space:nowrap}.qr-card{background:var(--surface);border:1px solid var(--divider);border-radius:var(--radius-lg);padding:20px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-card)}.qr-img{width:256px;height:256px;display:block;image-rendering:pixelated}.qr-summary{font-size:15px;color:var(--text-2)}.qr-summary strong{color:var(--text)}