:root{--bg: #f6f8fb;--bg-card: #ffffff;--bg-inset: #f1f5f9;--border: #e5e9f0;--border-strong: #d6dce5;--text: #111827;--text-dim: #475569;--text-mute: #94a3b8;--accent: #10b981;--accent-hover: #0d9a6c;--accent-soft: rgba(16, 185, 129, .1);--teal: #06b6d4;--danger: #dc2626;--danger-soft: rgba(220, 38, 38, .1);--info: #0369a1;--info-soft: rgba(3, 105, 161, .12);--radius: 12px;--radius-sm: 8px;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1{font-size:22px;margin:0 0 8px}h2{font-size:17px;margin:0 0 8px}h3{font-size:15px;margin:16px 0 8px}.shell{display:flex;flex-direction:column;min-height:100vh}.topbar{display:flex;align-items:center;gap:24px;padding:14px 28px;background:var(--bg-card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-size:16px}.brand:hover{text-decoration:none}.brand-text b{color:var(--accent)}.nav{display:flex;gap:8px;margin-left:auto}.nav a{color:var(--text-dim);font-weight:500;padding:8px 12px;border-radius:var(--radius-sm)}.nav a:hover{background:var(--bg-inset);color:var(--text);text-decoration:none}.main{flex:1;max-width:1080px;width:100%;margin:0 auto;padding:28px}.footer{text-align:center;color:var(--text-mute);font-size:13px;padding:24px;border-top:1px solid var(--border)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}.card.narrow{max-width:560px;margin-left:auto;margin-right:auto}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}@media (max-width: 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var(--border-strong);background:var(--bg-card);color:var(--text);cursor:pointer;font-weight:600;font-size:14px;font-family:var(--font)}.btn:hover{background:var(--bg-inset)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-hover)}.btn.danger{color:var(--danger);border-color:var(--border-strong)}.btn.ghost{border-color:transparent;background:transparent}.btn.sm{padding:6px 11px;font-size:13px}.btn.block{width:100%}.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.alert{padding:12px 14px;border-radius:var(--radius-sm);font-size:14px;margin:14px 0}.alert.error{background:var(--danger-soft);border:1px solid rgba(220,38,38,.3);color:var(--danger)}.alert.success{background:var(--accent-soft);border:1px solid rgba(16,185,129,.3);color:var(--accent-hover)}.alert.info{background:var(--info-soft);border:1px solid rgba(3,105,161,.2);color:var(--info)}.muted{color:var(--text-mute)}.muted.small{font-size:13px}.mono{font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:13px}code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;background:var(--bg-inset);padding:1px 5px;border-radius:4px}.product{display:flex;gap:16px;margin-top:16px}.product-img{width:96px;height:96px;flex-shrink:0;border-radius:var(--radius);background:linear-gradient(135deg,var(--accent),var(--teal));display:grid;place-items:center;color:#fff;font-size:34px;font-weight:800}.product-info h2{margin-bottom:4px}.product-info p{margin:4px 0}.price{font-size:24px;font-weight:700;color:var(--text);margin:8px 0}.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;background:var(--accent-soft);color:var(--accent)}.cart-controls{margin-top:16px}.qty-row{display:flex;align-items:center;gap:10px}.qty{font-size:18px;font-weight:700;min-width:28px;text-align:center}.summary{margin:12px 0}.summary .row{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid var(--border)}.summary .row.total{border-bottom:none;padding-top:10px}.pay-section{margin-top:18px;padding-top:16px;border-top:1px solid var(--border)}.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:10px 0}@media (max-width: 480px){.method-grid{grid-template-columns:1fr}}.method-option{display:flex;align-items:center;gap:10px;padding:12px;border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer}.method-option.selected{border-color:var(--accent);background:var(--accent-soft)}.method-option input{margin:0}.method-option small{display:block}.order-status{margin-top:16px;padding:14px;background:var(--bg-inset);border-radius:var(--radius-sm)}.empty{text-align:center;padding:40px 0}.result{text-align:center;padding:20px 0}.result-icon{width:56px;height:56px;margin:0 auto 12px;border-radius:999px;display:grid;place-items:center;font-size:28px;color:#fff}.result.ok .result-icon{background:var(--accent)}.result.bad .result-icon{background:var(--danger)}.result.wait .result-icon{background:var(--text-mute)}.method-list{list-style:none;padding:0}.method-list li{padding:8px 0;border-bottom:1px solid var(--border)}.status-box{margin-top:18px;padding:14px;background:var(--bg-inset);border-radius:var(--radius-sm)}.status-box h3{margin-top:0}.status-box p{margin:0}@media (max-width: 560px){.main{padding:16px}.topbar{padding:12px 16px;gap:12px}.nav a{padding:6px 8px}}