:root{
  --navy:#0a2540;
  --navy-light:#123a5e;
  --gold:#b8860b;
  --gold-light:#d4a017;
  --green:#2f9e44;
  --red:#c92a2a;
  --bg:#f2f4f7;
  --card:#ffffff;
  --border:#e1e5eb;
  --text:#1a1f29;
  --text-muted:#6b7280;
  --radius:10px;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-tap-highlight-color:transparent;
  user-select:none;
}

/* ---------------- LOGIN ---------------- */
.login-body{
  display:flex;align-items:center;justify-content:center;
  height:100vh;
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-light) 100%);
}
.login-card{
  background:var(--card);
  padding:40px 36px;
  border-radius:16px;
  width:340px;
  text-align:center;
  box-shadow:0 20px 60px rgba(0,0,0,0.3);
}
.login-logo{font-size:48px;margin-bottom:8px;}
.login-card h1{font-size:20px;margin:0 0 2px;color:var(--navy);}
.login-sub{color:var(--text-muted);margin:0 0 24px;font-size:13px;text-transform:uppercase;letter-spacing:1px;}
.login-card label{display:block;text-align:left;font-size:12px;font-weight:600;color:var(--text-muted);margin:14px 0 4px;}
.login-card input{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;font-size:15px;
}
.login-hint{margin-top:16px;font-size:12px;color:var(--text-muted);}
.alert-error{background:#fee;color:var(--red);padding:10px;border-radius:8px;font-size:13px;margin-bottom:8px;}

.btn-primary{
  background:var(--navy);color:#fff;border:none;border-radius:8px;
  padding:14px;font-size:15px;font-weight:600;cursor:pointer;
}
.btn-primary:active{background:var(--navy-light);}
.btn-block{width:100%;margin-top:20px;}
.btn-secondary{
  background:#eef1f5;color:var(--text);border:none;border-radius:8px;
  padding:14px;font-size:15px;font-weight:600;cursor:pointer;
}

/* ---------------- TOPBAR ---------------- */
.topbar{
  height:56px;background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;flex-shrink:0;
}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:10px;}
.brand{font-weight:700;font-size:16px;}
.topbar-logo{height:32px;max-width:120px;object-fit:contain;vertical-align:middle;margin-right:2px;border-radius:4px;background:#fff;padding:2px;}
.btn-topbar{
  color:#fff;text-decoration:none;background:rgba(255,255,255,0.12);
  padding:8px 14px;border-radius:8px;font-size:13px;font-weight:600;border:none;cursor:pointer;
}
.btn-topbar:active{background:rgba(255,255,255,0.25);}
.btn-logout{background:rgba(201,42,42,0.5);}
.user-chip{font-size:13px;opacity:0.85;}
.order-badge{
  background:var(--gold);color:#fff;padding:6px 12px;border-radius:6px;font-size:13px;font-weight:700;
}
.order-badge.type-takeout{background:#e8590c;}
.order-badge.type-delivery{background:#2f9e44;}
.order-no{font-size:13px;opacity:0.8;}

/* ---------------- FLOOR PLAN ---------------- */
.floor-wrap{padding:24px;max-width:1100px;margin:0 auto;}
.section-title{color:var(--navy);font-size:17px;margin:20px 0 10px;}
.floor-legend{font-size:13px;color:var(--text-muted);margin-bottom:14px;display:flex;gap:6px;align-items:center;}
.legend-dot{width:10px;height:10px;border-radius:50%;display:inline-block;margin-left:14px;margin-right:4px;}
.legend-dot:first-child{margin-left:0;}
.legend-available{background:var(--green);}
.legend-occupied{background:var(--red);}
.legend-reserved{background:var(--gold);}

.floor-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:16px;
}
.table-tile{
  background:var(--card);border-radius:12px;padding:20px 14px;text-decoration:none;color:var(--text);
  text-align:center;border:2px solid var(--border);box-shadow:0 2px 6px rgba(0,0,0,0.04);
  transition:transform .1s;
}
.table-tile:active{transform:scale(0.96);}
.table-tile.status-available{border-color:var(--green);}
.table-tile.status-occupied{border-color:var(--red);background:#fff5f5;}
.table-tile.status-reserved{border-color:var(--gold);background:#fffaf0;}
.table-no{font-size:22px;font-weight:800;color:var(--navy);}
.table-seats{font-size:12px;color:var(--text-muted);margin-top:2px;}
.table-order-total{margin-top:8px;font-weight:700;color:var(--red);font-size:14px;}

.open-orders-list{display:flex;flex-direction:column;gap:8px;}
.open-order-card{
  background:var(--card);border-radius:10px;padding:14px 16px;display:flex;justify-content:space-between;
  align-items:center;text-decoration:none;color:var(--text);border:1px solid var(--border);gap:10px;
}
.oo-type{font-weight:700;color:var(--navy);}
.oo-no{color:var(--text-muted);font-size:13px;}
.oo-customer{flex:1;}
.oo-total{font-weight:700;}

/* ---------------- POS LAYOUT ---------------- */
.pos-body{height:100vh;display:flex;flex-direction:column;overflow:hidden;}
.pos-layout{flex:1;display:flex;overflow:hidden;}

.menu-pane{flex:1;display:flex;flex-direction:column;overflow:hidden;border-right:1px solid var(--border);}
.category-tabs{
  display:flex;gap:8px;padding:12px;overflow-x:auto;background:var(--card);border-bottom:1px solid var(--border);
  flex-shrink:0;
}
.cat-tab{
  flex-shrink:0;border:none;background:#eef1f5;color:var(--text);padding:10px 18px;border-radius:20px;
  font-weight:700;font-size:13px;cursor:pointer;
}
.cat-tab.active{background:var(--cat-color,var(--navy));color:#fff;}

.item-search{padding:10px 12px;background:var(--card);border-bottom:1px solid var(--border);flex-shrink:0;}
.item-search input{
  width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;
}

.item-grid{
  flex:1;overflow-y:auto;padding:14px;display:grid;
  grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px;align-content:start;
}
.item-tile{
  background:var(--card);border-radius:10px;padding:12px;cursor:pointer;border:1px solid var(--border);
  text-align:center;box-shadow:0 1px 4px rgba(0,0,0,0.05);
}
.item-tile:active{transform:scale(0.96);background:#f8f9fb;}
.item-tile-img{
  width:100%;height:80px;border-radius:8px;margin-bottom:8px;
  object-fit:cover;display:block;background:linear-gradient(135deg,var(--navy),var(--navy-light));
}
.item-tile-name{font-weight:700;font-size:13px;line-height:1.3;}
.item-tile-price{color:var(--gold);font-weight:700;font-size:13px;margin-top:4px;}
.loading{grid-column:1/-1;text-align:center;color:var(--text-muted);padding:40px;}

/* ---------------- CART PANE ---------------- */
.cart-pane{width:360px;flex-shrink:0;display:flex;flex-direction:column;background:var(--card);}
.cart-header{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;}
.cart-header h3{margin:0;color:var(--navy);}
.btn-icon{background:none;border:none;font-size:18px;cursor:pointer;opacity:0.6;}
.cart-items{flex:1;overflow-y:auto;padding:10px 16px;}
.cart-empty{color:var(--text-muted);text-align:center;padding:40px 0;font-size:13px;}

.cart-item{padding:10px 0;border-bottom:1px solid var(--border);}
.ci-top{display:flex;justify-content:space-between;font-weight:700;font-size:14px;}
.ci-mods{font-size:12px;color:var(--text-muted);margin-top:2px;}
.ci-notes{font-size:12px;color:var(--gold);margin-top:2px;font-style:italic;}
.ci-controls{display:flex;align-items:center;gap:10px;margin-top:6px;}
.qty-btn{
  width:26px;height:26px;border-radius:6px;border:1px solid var(--border);background:#f5f6f8;
  font-weight:700;cursor:pointer;
}
.ci-remove{margin-left:auto;background:none;border:none;color:var(--red);font-size:12px;cursor:pointer;font-weight:700;}

.cart-summary{padding:12px 16px;border-top:1px solid var(--border);}
.cart-summary .row{display:flex;justify-content:space-between;padding:4px 0;font-size:14px;}
.cart-summary .row input{width:90px;text-align:right;border:1px solid var(--border);border-radius:6px;padding:4px 6px;}
.total-row{font-weight:800;font-size:17px;color:var(--navy);border-top:1px solid var(--border);margin-top:6px;padding-top:8px;}

.cart-actions{padding:14px 16px;display:flex;gap:10px;border-top:1px solid var(--border);}
.cart-actions button{flex:1;}

/* ---------------- MODALS ---------------- */
.modal-overlay{
  display:none;position:fixed;inset:0;background:rgba(0,0,0,0.5);
  align-items:center;justify-content:center;z-index:100;
}
.modal-overlay.show{display:flex;}
.modal-box{
  background:var(--card);border-radius:14px;padding:22px;width:360px;max-height:85vh;overflow-y:auto;
}
.modal-box h3{margin-top:0;color:var(--navy);}
.modal-checkout{width:380px;}

.mod-group{margin-bottom:14px;}
.mod-group-title{font-weight:700;font-size:13px;margin-bottom:6px;color:var(--navy);}
.mod-group-hint{font-size:11px;color:var(--text-muted);font-weight:400;}
.mod-option{
  display:flex;justify-content:space-between;align-items:center;padding:8px 10px;border:1px solid var(--border);
  border-radius:8px;margin-bottom:6px;cursor:pointer;
}
.mod-option.selected{border-color:var(--navy);background:#eef3fb;}
.mod-option-price{color:var(--text-muted);font-size:12px;}

.qty-label{display:block;font-size:12px;font-weight:700;color:var(--text-muted);margin:12px 0 4px;}
.qty-stepper{display:flex;align-items:center;gap:14px;}
.qty-stepper button{
  width:36px;height:36px;border-radius:8px;border:none;background:#eef1f5;font-size:18px;font-weight:700;cursor:pointer;
}
#modQtyVal{font-size:18px;font-weight:700;width:24px;text-align:center;}
#modNotes,#tenderedInput,#cardRefInput,#splitCashInput,#splitCardInput{
  width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;
}
.modal-actions{display:flex;gap:10px;margin-top:18px;}
.modal-actions button{flex:1;}

.pay-methods{display:flex;gap:8px;margin-bottom:16px;}
.pay-method{
  flex:1;padding:12px;border-radius:8px;border:2px solid var(--border);background:#fff;font-weight:700;
  cursor:pointer;font-size:13px;
}
.pay-method.active{border-color:var(--navy);background:#eef3fb;}

.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:10px;}
.key-btn{padding:14px;font-size:16px;font-weight:700;border-radius:8px;border:1px solid var(--border);background:#f8f9fb;cursor:pointer;}
.change-due{margin-top:12px;font-size:16px;font-weight:800;color:var(--green);text-align:center;}

/* ---------------- RECEIPT PRINT ---------------- */
.receipt-print{display:none;}
@media print{
  body.pos-body *{visibility:hidden;}
  body.pos-body .receipt-print,body.pos-body .receipt-print *{visibility:visible;}
  body.pos-body .receipt-print{display:block;position:absolute;top:0;left:0;width:280px;font-family:monospace;font-size:12px;padding:10px;}
}

/* ---------------- RESPONSIVE ---------------- */
@media (max-width:900px){
  .pos-layout{flex-direction:column;}
  .cart-pane{width:100%;height:45vh;}
  .menu-pane{height:55vh;}
}