*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --black:#0a0a0a;--white:#fff;--gray:#888;
  --gray-light:#f0f0f0;--gray-mid:#d0d0d0;
  --green:#27ae60;--red:#e74c3c;--amber:#e67e22;--blue:#2980b9;
  --font-head:'Cormorant Garamond',Georgia,serif;
  --font-body:'DM Sans',sans-serif;
}
html{scroll-behavior:smooth}
body{background:#f5f5f5;color:var(--black);font-family:var(--font-body);overflow-x:hidden;min-height:100vh}
.page{display:none;min-height:100vh}
.page.active{display:flex;flex-direction:column}

/* НЭВТРЭХ */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#fafafa}
.login-card{width:100%;max-width:420px;background:var(--white);border:1px solid var(--gray-light);border-radius:8px;padding:48px 40px}
.login-logo{font-family:var(--font-head);font-size:28px;font-weight:500;letter-spacing:6px;text-transform:uppercase;text-align:center;margin-bottom:8px}
.login-sub{font-size:12px;color:var(--gray);text-align:center;letter-spacing:1px;text-transform:uppercase;margin-bottom:36px}
.field-label{font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--gray);font-weight:500;margin-bottom:8px;display:block}
.field-input,.field-select{width:100%;border:1px solid var(--gray-mid);background:var(--white);padding:12px 14px;font-size:14px;font-family:var(--font-body);outline:none;border-radius:6px;transition:border-color .15s;color:var(--black)}
.field-input:focus,.field-select:focus{border-color:var(--black)}
.field-select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.modal-field{margin-bottom:16px}
.pw-wrap{position:relative}
.pw-wrap .field-input{padding-right:44px}
.pw-toggle{position:absolute;right:12px;top:50%;transform:translateY(-50%);border:none;background:none;cursor:pointer;font-size:18px}
.btn-login{width:100%;background:var(--black);color:var(--white);border:none;padding:14px;font-size:12px;font-weight:600;letter-spacing:2px;text-transform:uppercase;cursor:pointer;border-radius:6px;font-family:var(--font-body);transition:opacity .2s}
.btn-login:hover{opacity:.8}
.login-hint{text-align:center;font-size:11px;color:var(--gray);margin-top:20px}
.login-hint span{color:var(--black);font-weight:600}
.login-error{background:#fff0ee;border:1px solid #fcc;color:var(--red);font-size:12px;padding:10px 14px;border-radius:6px;margin-bottom:16px;display:none}

/* POS LAYOUT */
.pos-page{background:#f5f5f5;display:grid;grid-template-rows:60px 1fr;min-height:100vh}
.pos-header{background:var(--black);color:var(--white);display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:60px}
.pos-logo{font-family:var(--font-head);font-size:20px;letter-spacing:4px;text-transform:uppercase}
.pos-branch{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border-radius:6px;padding:6px 14px}
.pos-branch-dot{width:8px;height:8px;border-radius:50%;background:var(--green)}
.pos-branch-name{font-size:12px;font-weight:600}
.pos-header-right{display:flex;align-items:center;gap:10px}
.pos-cashier{font-size:12px;color:rgba(255,255,255,.6)}
.btn-header{border:1px solid rgba(255,255,255,.2);background:none;color:var(--white);padding:7px 14px;font-size:11px;font-weight:500;letter-spacing:.5px;text-transform:uppercase;cursor:pointer;border-radius:6px;font-family:var(--font-body);transition:background .15s}
.btn-header:hover{background:rgba(255,255,255,.1)}
.btn-header.danger{border-color:rgba(231,76,60,.4);color:#ff8a80}
.pos-body{display:grid;grid-template-columns:1fr 380px;height:calc(100vh - 60px);overflow:hidden}

/* БАРАА ХЭСЭГ */
.pos-left{display:flex;flex-direction:column;overflow:hidden}
.pos-toolbar{background:var(--white);border-bottom:1px solid var(--gray-light);padding:12px 16px;display:flex;gap:10px;align-items:center}
.search-wrap{flex:1;position:relative}
.search-wrap svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--gray);fill:none;stroke-width:1.5;stroke-linecap:round}
.pos-search{width:100%;border:1px solid var(--gray-light);border-radius:6px;padding:9px 12px 9px 38px;font-size:13px;font-family:var(--font-body);outline:none;background:#fafafa;transition:border-color .15s}
.pos-search:focus{border-color:var(--black);background:var(--white)}
.barcode-btn{display:flex;align-items:center;gap:8px;border:1px solid var(--gray-mid);border-radius:6px;padding:9px 14px;font-size:12px;font-weight:500;cursor:pointer;background:var(--white);font-family:var(--font-body);transition:all .15s;white-space:nowrap}
.barcode-btn:hover{border-color:var(--black)}
.barcode-btn svg{width:16px;height:16px;stroke:var(--black);fill:none;stroke-width:1.5;stroke-linecap:round}
.cat-tabs{background:var(--white);border-bottom:1px solid var(--gray-light);padding:0 16px;display:flex;overflow-x:auto}
.cat-tab{padding:11px 18px;font-size:11px;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--gray);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap;transition:all .15s;border:none;background:none;font-family:var(--font-body)}
.cat-tab:hover{color:var(--black)}
.cat-tab.active{color:var(--black);border-bottom:2px solid var(--black)}
.product-grid-pos{flex:1;overflow-y:auto;padding:16px;display:grid;grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:12px;align-content:start}
.pos-product-card{background:var(--white);border:1px solid var(--gray-light);border-radius:8px;overflow:hidden;cursor:pointer;transition:all .2s}
.pos-product-card:hover{border-color:var(--black);transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,.08)}
.pos-product-card.out-of-stock{opacity:.45;cursor:not-allowed}
.pos-product-card.out-of-stock:hover{transform:none;box-shadow:none;border-color:var(--gray-light)}
.pos-product-img{background:#f8f8f8;aspect-ratio:1;display:flex;align-items:center;justify-content:center;font-size:52px;position:relative}
.pos-stock-badge{position:absolute;top:6px;right:6px;font-size:9px;font-weight:600;padding:2px 7px;border-radius:10px}
.badge-ok{background:#e8f8ef;color:var(--green)}
.badge-low{background:#fff3e0;color:var(--amber)}
.badge-out{background:#ffeaea;color:var(--red)}
.pos-product-info{padding:10px 12px}
.pos-product-name{font-size:13px;font-weight:500;margin-bottom:3px;line-height:1.3}
.pos-product-sku{font-size:10px;color:var(--gray);letter-spacing:.5px;margin-bottom:6px}
.pos-product-bottom{display:flex;align-items:center;justify-content:space-between}
.pos-product-price{font-size:14px;font-weight:600}
.pos-product-colors{display:flex;gap:3px}
.pos-color-dot{width:10px;height:10px;border-radius:50%;border:1px solid rgba(0,0,0,.1)}

/* САГС */
.pos-right{background:var(--white);border-left:1px solid var(--gray-light);display:flex;flex-direction:column;overflow:hidden}
.pos-cart-header{padding:14px 16px;border-bottom:1px solid var(--gray-light);display:flex;align-items:center;justify-content:space-between}
.pos-cart-title{font-size:13px;font-weight:600;letter-spacing:.5px}
.pos-cart-count{background:var(--black);color:var(--white);font-size:10px;font-weight:700;padding:2px 8px;border-radius:10px}
.btn-clear{border:none;background:none;cursor:pointer;color:var(--gray);font-size:11px;letter-spacing:.5px;text-transform:uppercase;font-family:var(--font-body);transition:color .15s}
.btn-clear:hover{color:var(--red)}
.pos-cart-items{flex:1;overflow-y:auto;padding:8px}
.pos-cart-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--gray);font-size:13px}
.pos-cart-empty-icon{font-size:48px;opacity:.3}
.pos-cart-item{display:flex;gap:10px;align-items:center;padding:10px 8px;border-radius:6px;transition:background .15s}
.pos-cart-item:hover{background:#fafafa}
.pos-cart-item-emoji{font-size:28px;flex-shrink:0;width:44px;height:44px;background:#f8f8f8;border-radius:6px;display:flex;align-items:center;justify-content:center}
.pos-cart-item-info{flex:1;min-width:0}
.pos-cart-item-name{font-size:13px;font-weight:500;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pos-cart-item-variant{font-size:10px;color:var(--gray)}
.pos-cart-item-right{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex-shrink:0}
.pos-cart-item-price{font-size:13px;font-weight:600}
.pos-item-qty{display:flex;align-items:center;border:1px solid var(--gray-light);border-radius:4px;overflow:hidden}
.pos-item-qty button{width:24px;height:24px;border:none;background:none;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:background .15s}
.pos-item-qty button:hover{background:var(--gray-light)}
.pos-item-qty span{width:28px;text-align:center;font-size:12px;font-weight:600;border-left:1px solid var(--gray-light);border-right:1px solid var(--gray-light);line-height:24px}
.pos-item-remove{border:none;background:none;cursor:pointer;color:var(--gray-mid);font-size:16px;line-height:1;padding:0 2px;transition:color .15s}
.pos-item-remove:hover{color:var(--red)}
.pos-discount-wrap{padding:10px 16px;border-top:1px solid var(--gray-light)}
.discount-row{display:flex;gap:8px}
.discount-input{flex:1;border:1px solid var(--gray-light);border-radius:6px;padding:8px 12px;font-size:12px;font-family:var(--font-body);outline:none;transition:border-color .15s}
.discount-input:focus{border-color:var(--black)}
.discount-btn{background:var(--black);color:var(--white);border:none;padding:8px 14px;font-size:11px;font-weight:600;text-transform:uppercase;cursor:pointer;border-radius:6px;font-family:var(--font-body)}
.pos-totals{padding:12px 16px;border-top:1px solid var(--gray-light)}
.total-row{display:flex;justify-content:space-between;font-size:13px;padding:4px 0}
.total-row span:first-child{color:var(--gray)}
.total-row.grand{font-size:18px;font-weight:700;padding-top:10px;border-top:2px solid var(--black);margin-top:6px}
.total-row.grand span:first-child{color:var(--black)}
.pos-payment{padding:12px 16px;border-top:1px solid var(--gray-light)}
.pay-methods{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-bottom:12px}
.pay-method{border:1px solid var(--gray-light);border-radius:6px;padding:8px 6px;cursor:pointer;text-align:center;transition:all .15s;background:var(--white)}
.pay-method:hover{border-color:var(--gray-mid)}
.pay-method.active{border-color:var(--black);background:#fafafa}
.pay-method-icon{font-size:18px;margin-bottom:3px}
.pay-method-name{font-size:10px;font-weight:600;letter-spacing:.5px}
.btn-charge{width:100%;background:var(--green);color:var(--white);border:none;padding:15px;font-size:13px;font-weight:700;letter-spacing:1px;text-transform:uppercase;cursor:pointer;border-radius:6px;font-family:var(--font-body);transition:opacity .2s;display:flex;align-items:center;justify-content:center;gap:8px}
.btn-charge:hover{opacity:.85}
.btn-charge:disabled{background:var(--gray-mid);cursor:not-allowed;opacity:1}
.btn-charge svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:2.5;stroke-linecap:round}

/* MODAL */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:500;display:none;align-items:center;justify-content:center;padding:20px}
.modal-overlay.show{display:flex}
.modal{background:var(--white);border-radius:12px;padding:32px;width:100%;max-width:440px;max-height:90vh;overflow-y:auto}
.modal-title{font-family:var(--font-head);font-size:26px;font-weight:300;margin-bottom:6px}
.modal-sub{font-size:13px;color:var(--gray);margin-bottom:24px}
.modal-btns{display:flex;gap:10px;margin-top:24px}
.btn-modal-cancel{flex:1;border:1px solid var(--gray-mid);background:var(--white);padding:12px;font-size:12px;font-weight:600;letter-spacing:1px;text-transform:uppercase;cursor:pointer;border-radius:6px;font-family:var(--font-body)}
.btn-modal-ok{flex:2;background:var(--black);color:var(--white);border:none;padding:12px;font-size:12px;font-weight:600;letter-spacing:1px;text-transform:uppercase;cursor:pointer;border-radius:6px;font-family:var(--font-body)}

/* RECEIPT */
.receipt-modal{max-width:340px}
.receipt-header{text-align:center;margin-bottom:16px;padding-bottom:14px;border-bottom:1px dashed var(--gray-mid)}
.receipt-logo{font-family:var(--font-head);font-size:20px;letter-spacing:4px;text-transform:uppercase;margin-bottom:4px}
.receipt-info{font-size:11px;color:var(--gray);line-height:1.6}
.receipt-item-row{display:flex;justify-content:space-between;font-size:12px;padding:4px 0;border-bottom:1px solid #f0f0f0}
.receipt-item-row:last-child{border-bottom:none}
.receipt-totals{border-top:1px dashed var(--gray-mid);padding-top:12px;margin:12px 0}
.receipt-total-row{display:flex;justify-content:space-between;font-size:12px;padding:3px 0}
.receipt-total-row.grand{font-size:15px;font-weight:700;border-top:1px solid var(--black);padding-top:8px;margin-top:6px}
.receipt-footer{text-align:center;font-size:11px;color:var(--gray);padding-top:14px;border-top:1px dashed var(--gray-mid)}
.receipt-actions{display:flex;gap:8px;margin-top:18px}
.btn-print{flex:1;background:var(--black);color:var(--white);border:none;padding:12px;font-size:11px;font-weight:600;letter-spacing:1px;text-transform:uppercase;cursor:pointer;border-radius:6px;font-family:var(--font-body)}
.btn-new-sale{flex:1;border:1px solid var(--black);background:var(--white);color:var(--black);padding:12px;font-size:11px;font-weight:600;letter-spacing:1px;text-transform:uppercase;cursor:pointer;border-radius:6px;font-family:var(--font-body)}

/* REPORT */
.report-modal{max-width:500px}
.report-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:18px}
.report-card{background:#f8f8f8;border-radius:8px;padding:14px}
.report-card-label{font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--gray);margin-bottom:6px}
.report-card-val{font-family:var(--font-head);font-size:24px;font-weight:400}
.report-card-val.green{color:var(--green)}
.report-table{width:100%;border-collapse:collapse;font-size:12px;margin-bottom:14px}
.report-table th{text-align:left;padding:8px 10px;background:#f0f0f0;font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--gray)}
.report-table td{padding:8px 10px;border-bottom:1px solid var(--gray-light)}

/* TOAST */
.toast{position:fixed;bottom:24px;right:24px;z-index:999;background:var(--black);color:white;padding:12px 18px;font-size:12px;font-weight:500;border-radius:6px;transform:translateY(80px);opacity:0;transition:all .3s ease;pointer-events:none;display:flex;align-items:center;gap:10px;max-width:300px}
.toast.show{transform:translateY(0);opacity:1}
.toast.success{background:var(--green)}
.toast.error{background:var(--red)}
.toast svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2.5;stroke-linecap:round;flex-shrink:0}