:root{--bg:#f4f6f8;--panel:#fff;--ink:#1e2935;--muted:#718096;--line:#e7ebef;--accent:#167d68;--accent-dark:#116454;--soft:#eaf5f2;--danger:#d9544d;--warning:#d98c20;--shadow:0 3px 18px rgba(27,45,60,.06)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.45 Inter,Segoe UI,Arial,sans-serif}.sidebar{position:fixed;inset:0 auto 0 0;width:228px;background:#173a38;color:#fff;padding:28px 16px;display:flex;flex-direction:column}.brand{display:flex;gap:12px;align-items:center;padding:0 10px 28px}.logo{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;background:#eabf66;color:#173a38;font:bold 22px Georgia}.brand strong,.brand small{display:block}.brand strong{font-size:17px}.brand small{color:#a8c3bf}.sidebar nav{display:grid;gap:7px}.nav{border:0;background:transparent;color:#bcd0cd;padding:12px 14px;text-align:left;border-radius:9px;font:inherit;font-weight:600;cursor:pointer}.nav:first-letter{font-size:18px}.nav span{margin-left:11px}.nav:hover,.nav.active{background:rgba(255,255,255,.11);color:#fff}.online{margin-top:auto;padding:12px;color:#a8c3bf;font-size:12px}.online i{display:inline-block;width:8px;height:8px;border-radius:50%;background:#53d79f;margin-right:7px}main{margin-left:228px;padding:0 30px 40px;min-height:100vh}header{height:96px;display:flex;align-items:center;justify-content:space-between}h1,h2,p{margin:0}h1{font-size:25px}h2{font-size:16px}header p,.modal-head p,.toolbar p{color:var(--muted)}.date{color:var(--muted)}.view{display:none}.view.active{display:block}.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.pos-grid{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:18px;height:calc(100vh - 126px)}.catalog-panel{padding:18px;overflow:auto}.cart-panel{display:flex;flex-direction:column;overflow:hidden}.search-wrap{height:48px;border:1.5px solid #cfd8dd;border-radius:10px;display:flex;align-items:center;gap:10px;padding:0 14px;background:white}.search-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--soft)}.search-wrap input{border:0;outline:0;width:100%;font:inherit;background:transparent}.search-wrap span{font-size:22px;color:var(--muted)}kbd{font:11px inherit;color:#87939e;background:#f1f3f4;border:1px solid #d9dfe3;border-radius:5px;padding:3px 7px}.chips{display:flex;gap:7px;overflow:auto;padding:16px 0 12px}.chip{white-space:nowrap;border:1px solid var(--line);border-radius:20px;padding:7px 12px;background:white;cursor:pointer}.chip.active{background:var(--accent);color:white;border-color:var(--accent)}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:10px}.product-card{border:1px solid var(--line);background:white;border-radius:11px;padding:14px;text-align:left;cursor:pointer;min-height:126px;display:flex;flex-direction:column}.product-card:hover{border-color:var(--accent);transform:translateY(-1px)}.product-card .category{font-size:11px;text-transform:uppercase;color:var(--accent);font-weight:700}.product-card strong{margin:7px 0;line-height:1.25}.product-card .price{font-size:17px;font-weight:750;margin-top:auto}.stock{font-size:11px;color:var(--muted)}.stock.low{color:var(--danger);font-weight:700}.panel-title{padding:17px 19px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.panel-title small{color:var(--muted)}.icon-btn{border:0;background:#f0f3f4;border-radius:7px;width:30px;height:30px;cursor:pointer;font-size:20px}.cart-items{padding:8px 18px;overflow:auto;flex:1}.cart-empty{text-align:center;color:var(--muted);padding:60px 20px}.cart-line{display:grid;grid-template-columns:1fr auto;gap:8px;padding:12px 0;border-bottom:1px solid var(--line)}.cart-line small{color:var(--muted)}.cart-line strong{display:block}.qty{display:flex;align-items:center;gap:8px}.qty button{border:1px solid var(--line);background:#fff;border-radius:6px;width:25px;height:25px;cursor:pointer}.qty .remove{color:var(--danger);border:0}.line-right{text-align:right}.checkout{border-top:1px solid var(--line);padding:15px 18px;display:grid;gap:11px}.checkout label,dialog label{display:grid;gap:5px;color:#53616c;font-size:12px;font-weight:650}.discount-row{display:flex!important;justify-content:space-between;align-items:center}.discount-row div{display:flex;align-items:center}.discount-row input{width:92px}.checkout input,.checkout select,dialog input,dialog select,dialog textarea,#period{border:1px solid #d7dee2;border-radius:8px;padding:9px 10px;background:white;font:inherit;color:var(--ink)}.totals{display:grid;gap:5px}.totals>div{display:flex;justify-content:space-between}.grand{font-size:20px;padding-top:4px}.checkout small{color:var(--accent);text-align:right}.primary,.button{border:0;background:var(--accent);color:white;border-radius:8px;padding:10px 15px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none}.primary:hover{background:var(--accent-dark)}.primary:disabled{opacity:.45;cursor:not-allowed}.primary.large{font-size:15px;display:flex;justify-content:space-between}.secondary{border:1px solid #d3dade;background:white;color:var(--ink);border-radius:8px;padding:9px 14px;font:inherit;cursor:pointer}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.compact{width:420px;height:42px}.table-panel{overflow:auto}table{width:100%;border-collapse:collapse}th{text-align:left;color:#71808b;font-size:11px;text-transform:uppercase;letter-spacing:.04em;background:#fafbfb}th,td{padding:13px 15px;border-bottom:1px solid var(--line)}tbody tr:hover{background:#fafcfb}.badge{display:inline-block;padding:4px 8px;border-radius:20px;background:var(--soft);color:var(--accent);font-size:11px;font-weight:700}.badge.danger{background:#fff0ef;color:var(--danger)}.badge.warning{background:#fff5e4;color:var(--warning)}.link-btn{border:0;background:transparent;color:var(--accent);cursor:pointer;font-weight:700}.summary-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin-bottom:16px}.summary-card{padding:18px}.summary-card small{color:var(--muted)}.summary-card strong{display:block;font-size:25px;margin-top:5px}.payment-summary{padding:15px 20px}.payment-row{display:grid;grid-template-columns:140px 1fr auto;gap:15px;align-items:center;padding:10px 0}.bar{height:8px;border-radius:8px;background:#edf1f2;overflow:hidden}.bar i{display:block;height:100%;background:var(--accent);border-radius:8px}dialog{border:0;border-radius:14px;box-shadow:0 20px 70px rgba(14,34,42,.26);padding:0;width:min(540px,calc(100% - 30px));color:var(--ink)}dialog::backdrop{background:rgba(18,34,39,.55)}dialog form{padding:22px}.modal-head{display:flex;justify-content:space-between;margin-bottom:20px}.modal-head .close{border:0;background:transparent;font-size:25px;cursor:pointer}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.span2{grid-column:1/-1}.check{display:flex!important;align-items:center;grid-template-columns:auto 1fr}.check input{width:auto}.modal-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:22px}.receipt-dialog{width:360px}.receipt-dialog>div{padding:20px}.receipt-paper{font:12px/1.35 Consolas,monospace}.receipt-paper h2{text-align:center;font-size:18px}.receipt-paper .center{text-align:center}.receipt-paper hr{border:0;border-top:1px dashed #777;margin:12px 0}.receipt-item{display:grid;grid-template-columns:1fr auto}.receipt-total{font-size:16px;font-weight:bold}.receipt-paper .legal{font-size:10px;text-align:center;margin-top:13px}#toast{position:fixed;right:25px;bottom:25px;background:#243b3a;color:white;padding:12px 16px;border-radius:9px;box-shadow:var(--shadow);opacity:0;transform:translateY(15px);pointer-events:none;transition:.2s;z-index:20}#toast.show{opacity:1;transform:none}#toast.error{background:var(--danger)}@media(max-width:1050px){.pos-grid{grid-template-columns:1fr 360px}.summary-cards{grid-template-columns:1fr 1fr}}@media(max-width:800px){.sidebar{width:66px;padding:18px 8px}.brand div,.nav span,.online{display:none}.brand{padding:0 6px 25px}.nav{text-align:center}.nav:first-letter{font-size:20px}main{margin-left:66px;padding:0 14px 25px}.pos-grid{display:block;height:auto}.catalog-panel{max-height:45vh}.cart-panel{margin-top:12px;min-height:50vh}.summary-cards{grid-template-columns:1fr}.toolbar{gap:10px}.compact{width:100%}.form-grid{grid-template-columns:1fr}.span2{grid-column:auto}}@media print{body *{visibility:hidden}.receipt-dialog,.receipt-dialog *{visibility:visible}.receipt-dialog{position:absolute;left:0;top:0;width:80mm;box-shadow:none}.no-print{display:none!important}}