:root{--green:#17643a;--green-dark:#11512f;--green-soft:#e8f3eb;--ink:#19251d;--muted:#718077;--line:#dfe7e0;--paper:#fff;--back:#f4f7f3}*{box-sizing:border-box}body{background:var(--back);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif}button{font:inherit}.app-shell{min-height:100vh}.topbar{background:var(--green);color:#fff;justify-content:space-between;align-items:center;gap:16px;min-height:70px;padding:14px 28px;display:flex}.brand{align-items:center;gap:10px;font-size:18px;font-weight:700;display:flex}.brand span{font-size:22px}.turn-info{align-items:center;gap:7px;font-size:14px;display:flex}.turn-info small{opacity:.8}.turn-info button,.cart-title button{color:inherit;cursor:pointer;background:0 0;border:1px solid #ffffff73;border-radius:9px;margin-left:8px;padding:8px 12px}.status-dot{background:#8de0a8;border-radius:50%;width:8px;height:8px}.start-card{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:calc(100vh - 70px);padding:24px;display:flex}.receipt-icon{background:var(--green-soft);border-radius:20px;place-items:center;width:72px;height:72px;font-size:34px;display:grid}.start-card h1{margin:20px 0 5px;font-size:28px}.start-card p{color:var(--muted);margin:0 0 24px}.primary-button{background:var(--green);color:#fff;cursor:pointer;border:0;border-radius:11px;padding:13px 22px;font-weight:700}.primary-button:hover{background:var(--green-dark)}.primary-button:disabled{opacity:.4;cursor:not-allowed}.checkout-layout{grid-template-columns:minmax(0,1fr) 350px;min-height:calc(100vh - 70px);display:grid}.catalog{padding:24px 28px}.section-title{justify-content:space-between;align-items:center;gap:16px;display:flex}.section-title h1,.cart-title h2{margin:0;font-size:18px}.section-title span{color:var(--muted);font-size:14px}.categories{flex-wrap:wrap;gap:8px;margin:18px 0;display:flex}.categories button,.cart-title button{border:1px solid var(--line);background:var(--paper);color:var(--ink);cursor:pointer;border-radius:9px;margin-left:0;padding:8px 13px}.categories button.active{background:var(--green-soft);color:var(--green-dark);border-color:#8ab498}.product-grid{grid-template-columns:repeat(3,minmax(130px,1fr));gap:13px;display:grid}.product-card{border:1px solid var(--line);background:var(--paper);min-height:140px;color:var(--ink);cursor:pointer;text-align:left;border-radius:14px;flex-direction:column;justify-content:space-between;align-items:flex-start;padding:15px;transition:all .15s;display:flex}.product-card:hover{border-color:#8ab498;transform:translateY(-2px);box-shadow:0 8px 22px #1c492b14}.product-icon{font-size:38px}.product-card strong,.product-card small{display:block}.product-card small{color:var(--green);margin-top:5px}.cart-panel{border-left:1px solid var(--line);background:var(--paper);flex-direction:column;padding:22px;display:flex}.cart-title{justify-content:space-between;align-items:center;display:flex}.cart-lines{flex:1;padding:15px 0}.empty-cart{height:100%;min-height:260px;color:var(--muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;font-size:28px;display:flex}.empty-cart p{color:var(--ink);margin:12px 0 4px;font-size:15px}.empty-cart small{font-size:13px}.cart-line{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:13px 0;display:flex}.cart-line strong,.cart-line small{display:block}.cart-line small{color:var(--muted);margin-top:4px}.quantity{align-items:center;gap:8px;display:flex}.quantity button{border:1px solid var(--line);background:var(--paper);cursor:pointer;border-radius:8px;width:29px;height:29px}.cart-footer{border-top:1px solid var(--line);padding-top:16px}.cart-footer>div{justify-content:space-between;align-items:center;margin-bottom:15px;display:flex}.cart-footer strong{font-size:22px}.cart-footer .primary-button{width:100%}@media (max-width:780px){.checkout-layout{grid-template-columns:1fr}.cart-panel{border-left:0;border-top:1px solid var(--line)}.product-grid{grid-template-columns:repeat(2,minmax(120px,1fr))}.topbar,.catalog{padding-left:16px;padding-right:16px}.turn-info small{display:none}}@media (max-width:430px){.product-grid{grid-template-columns:1fr 1fr}.product-card{min-height:125px}.turn-info{font-size:0}.turn-info button{font-size:13px}.section-title span{display:none}}.loading{min-height:100vh;color:var(--muted);place-items:center;display:grid}.modal-backdrop{z-index:20;background:#0d1c128c;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.payment-modal{background:var(--paper);border-radius:17px;width:min(440px,100%);padding:22px;box-shadow:0 24px 70px 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