:root {
  --hpos-red: #a6193e;
  --hpos-ink: #14151A;
  --hpos-border: #E3E1DD;
  --hpos-bg: #F6F5F3;
}
#hpos-root {
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--hpos-ink);
  color-scheme: light;
  box-sizing: border-box;
}
#hpos-root input, #hpos-root select { color: var(--hpos-ink); }
.hpos-modal, .hpos-modal input, .hpos-modal select { color: var(--hpos-ink); }
#hpos-root * { box-sizing: border-box; }
#hpos-root h1 { font-size: 20px; margin: 0 0 16px; }

.hpos-btn {
  min-height: 44px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--hpos-border);
  border-radius: 8px;
  background: #fff;
  color: var(--hpos-ink);
  cursor: pointer;
}
.hpos-btn:hover { background: var(--hpos-bg); }
.hpos-btn-primary { background: var(--hpos-red); border-color: var(--hpos-red); color: #fff; }
.hpos-btn-primary:hover { background: #8a1533; }
.hpos-btn-secondary { background: #fff; }
.hpos-btn-small { min-height: 32px; padding: 4px 10px; font-size: 12px; }
.hpos-btn-danger { color: var(--hpos-red); border-color: var(--hpos-red); }
.hpos-btn-danger:hover { background: var(--hpos-red); color: #fff; }
.hpos-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.hpos-empty { color: #777; padding: 16px 0; }
.hpos-form-error { color: var(--hpos-red); font-size: 13px; margin: 8px 0; }

/* --- POS screen layout --- */
.hpos-pos-shell {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 16px;
  height: calc(100vh - 140px);
  min-height: 500px;
}
.hpos-pos-left { display: flex; flex-direction: column; min-height: 0; }
.hpos-pos-right { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--hpos-border); border-radius: 12px; padding: 14px; min-height: 0; }

.hpos-scan-row { display: flex; gap: 10px; margin-bottom: 12px; }
.hpos-scan-row input {
  flex: 1;
  min-height: 52px;
  font-size: 16px;
  padding: 10px 14px;
  border: 2px solid var(--hpos-border);
  border-radius: 8px;
}
#hpos-barcode-input { border-color: var(--hpos-red); }

.hpos-category-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.hpos-cat-tab {
  min-height: 44px;
  padding: 8px 16px;
  border: 2px solid var(--hpos-border);
  border-radius: 999px;
  background: #fff;
  color: var(--hpos-ink);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.hpos-cat-tab.active { background: var(--hpos-ink); color: #fff; border-color: var(--hpos-ink); }

.hpos-product-grid {
  flex: 1;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  align-content: start;
}
.hpos-product-tile {
  min-height: 90px;
  border: 1px solid var(--hpos-border);
  border-radius: 10px;
  background: #fff;
  padding: 12px;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.hpos-product-tile:hover { border-color: var(--hpos-red); }
.hpos-product-tile-name { font-weight: 600; font-size: 14px; }
.hpos-product-tile-price { font-size: 15px; color: var(--hpos-red); font-weight: 700; margin-top: 8px; }

.hpos-cart-header { font-weight: 700; font-size: 16px; margin-bottom: 10px; }
.hpos-cart-items { flex: 1; overflow-y: auto; min-height: 0; }
.hpos-cart-line { display: grid; grid-template-columns: 1fr auto auto auto auto; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--hpos-border); }
.hpos-cart-line-name { font-size: 13px; }
.hpos-cart-line-discount-note { font-size: 11px; color: var(--hpos-red); margin-top: 2px; }
.hpos-cart-line-qty { display: flex; align-items: center; gap: 6px; }
.hpos-cart-line-qty button { min-width: 30px; min-height: 30px; border: 1px solid var(--hpos-border); border-radius: 6px; background: #fff; color: var(--hpos-ink); cursor: pointer; }
.hpos-cart-line-price { font-weight: 600; font-size: 13px; white-space: nowrap; }
.hpos-cart-line-discount-btn { min-width: 30px; min-height: 30px; border: 1px solid var(--hpos-border); border-radius: 6px; background: #fff; color: var(--hpos-ink); cursor: pointer; font-weight: 700; }
.hpos-cart-line-discount-btn:hover { border-color: var(--hpos-red); color: var(--hpos-red); }
.hpos-cart-line-remove { border: none; background: none; color: var(--hpos-red); font-size: 18px; cursor: pointer; min-width: 30px; min-height: 30px; }

.hpos-pos-topbar { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.hpos-drawer-badge { font-size: 12px; color: #276B41; background: #E1F0E4; padding: 6px 10px; border-radius: 6px; margin-right: auto; }
.hpos-drawer-gate { max-width: 360px; margin: 60px auto; background: #fff; border: 1px solid var(--hpos-border); border-radius: 12px; padding: 28px; text-align: center; }
.hpos-drawer-gate h2 { margin-top: 0; }
.hpos-drawer-gate .hpos-field { text-align: left; }
.hpos-drawer-gate .hpos-btn-primary { width: 100%; min-height: 52px; font-size: 15px; margin-top: 8px; }

.hpos-cart-totals { padding-top: 10px; border-top: 1px solid var(--hpos-border); }
.hpos-total-line { display: flex; justify-content: space-between; padding: 4px 0; font-size: 14px; }
.hpos-total-line-grand { font-weight: 700; font-size: 17px; padding-top: 8px; }

.hpos-payment-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }
.hpos-btn-pay { min-height: 56px; font-size: 15px; font-weight: 700; background: var(--hpos-ink); color: #fff; border: none; }
.hpos-btn-pay:hover { background: var(--hpos-red); }

/* --- Modals --- */
.hpos-modal-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(20,21,26,0.5);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.hpos-modal { background: #fff; border-radius: 12px; padding: 24px; width: 100%; max-width: 420px; max-height: 90vh; overflow-y: auto; }
.hpos-modal-wide { max-width: 640px; }
.hpos-modal h3 { margin: 0 0 16px; }
.hpos-modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

.hpos-field { margin-bottom: 12px; }
.hpos-field label { display: block; font-size: 12px; font-weight: 600; color: #555; margin-bottom: 4px; }
.hpos-field input, .hpos-field select {
  width: 100%; min-height: 44px; padding: 8px 12px;
  border: 1px solid var(--hpos-border); border-radius: 8px; font-size: 14px;
}
.hpos-readonly { min-height: 44px; display: flex; align-items: center; font-weight: 700; font-size: 18px; }
.hpos-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 16px; }
.hpos-split-row { display: flex; gap: 8px; margin-bottom: 8px; }
.hpos-split-row select { flex: 1; }
.hpos-split-row input { flex: 1; }

/* --- Admin lists --- */
.hpos-list { margin-top: 16px; }
.hpos-list-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 14px; border: 1px solid var(--hpos-border); border-radius: 8px; margin-bottom: 8px; background: #fff;
}
.hpos-list-row-voided { opacity: 0.6; text-decoration: line-through; }

/* --- Dashboard --- */
.hpos-kiosk-callout {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: #fff; border: 1px solid var(--hpos-border); border-radius: 12px;
  padding: 18px 20px; margin-bottom: 20px;
}
.hpos-dash-cards { display: flex; gap: 16px; flex-wrap: wrap; }
.hpos-dash-card { background: #fff; border: 1px solid var(--hpos-border); border-radius: 12px; padding: 20px; min-width: 160px; }
.hpos-dash-card-value { font-size: 26px; font-weight: 700; color: var(--hpos-red); }
.hpos-dash-card-label { font-size: 13px; color: #555; margin-top: 4px; }

/* --- Refunds --- */
.hpos-refund-search { display: flex; gap: 10px; margin: 16px 0; flex-wrap: wrap; }
.hpos-refund-search input { min-height: 44px; padding: 8px 12px; border: 1px solid var(--hpos-border); border-radius: 8px; font-size: 14px; }
.hpos-refund-sale { background: #fff; border: 1px solid var(--hpos-border); border-radius: 10px; padding: 16px; margin-bottom: 12px; }
.hpos-refund-sale h3 { margin: 0 0 10px; font-size: 15px; }
.hpos-muted { color: #888; font-size: 13px; }

/* --- Tablet / phone --- */
@media (max-width: 900px) {
  .hpos-pos-shell { grid-template-columns: 1fr; height: auto; }
  .hpos-pos-right { order: -1; }
  .hpos-form-grid { grid-template-columns: 1fr; }
}