/* --- MTC Frontend POS Styles --- */
/* Version: 1.8.1 (Settings Update) */

:root {
  --c-bg: #f5f5f5;
  --c-surface: #ffffff;
  --c-text: #212121;
  --c-text-secondary: #757575;
  --c-border: #e0e0e0;
  --c-accent: #000000;
  --c-accent-text: #ffffff;
  --c-secondary: #f0f0f0;
  --c-secondary-text: #424242;
  --c-error: #d32f2f;
  --border-radius: 4px;
}

/* --- Base & Reset --- */
.mtc-pos {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--c-bg);
  color: var(--c-text);
  line-height: 1.5;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* --- Layout --- */
.mtc-pos__header {
  background-color: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  padding: 10px 20px;
}
.mtc-pos__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.mtc-pos__logo {
  font-weight: bold;
  background-color: var(--c-accent);
  color: var(--c-accent-text);
  padding: 4px 8px;
  border-radius: var(--border-radius);
  font-size: 14px;
}
.mtc-pos__title {
  font-weight: 500;
  color: var(--c-text-secondary);
}
.mtc-pos__body {
  display: grid;
  grid-template-columns: 7fr 3fr;
  height: 100vh;
}
.mtc-pos__left {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--c-border);
  overflow: hidden;
}
.mtc-pos__right {
  background-color: var(--c-surface);
  padding: 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* --- Search & Products --- */
.mtc-pos__search {
  padding: 16px;
  border-bottom: 1px solid var(--c-border);
}
#mtc-pos-search {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--c-border);
  border-radius: var(--border-radius);
  font-size: 16px;
  outline: none;
  transition: border-color .2s;
}
#mtc-pos-search:focus {
  border-color: var(--c-accent);
}
.mtc-pos__products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
  padding: 16px;
  overflow-y: auto;
}
.mtc-pos__product {
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: border-color .2s, box-shadow .2s;
  overflow: hidden;
  text-align: center;
}
.mtc-pos__product:hover {
  border-color: var(--c-accent);
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}
.mtc-pos__product--oos {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: #fafafa;
}
.mtc-pos__product img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  display: block;
  background-color: #f9f9f9;
}
.mtc-pos__product-info {
  padding: 8px;
}
.mtc-pos__product-title {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  height: calc(13px * 1.4 * 2); 
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.mtc-pos__product-price {
  font-size: 14px;
  font-weight: bold;
  margin-top: 4px;
}
.mtc-pos__product-stock {
  font-size: 11px;
  color: var(--c-text-secondary);
  margin-top: 4px;
  display: block;
}

/* --- Cart --- */
#mtc-pos-cart {
  flex: 1;
  overflow-y: auto;
  border: 1px solid var(--c-border);
  border-radius: var(--border-radius);
  margin-top: 8px;
}
.mtc-pos__cart-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px;
  align-items: center;
  padding: 8px 12px;
}
.mtc-pos__cart-row:not(:last-child) {
  border-bottom: 1px solid #f0f0f0;
}
.mtc-pos__cart-item-name {
  font-weight: 500;
  margin-bottom: 4px;
  font-size: 14px;
}
.mtc-pos__cart-item-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--c-text-secondary);
}
.mtc-pos__cart-item-meta input {
  width: 70px;
  padding: 6px;
  border: 1px solid var(--c-border);
  border-radius: var(--border-radius);
  text-align: center;
  font-size: 14px;
}
.mtc-pos__cart-item-total {
  font-weight: bold;
  font-size: 14px;
  text-align: right;
  min-width: 90px;
}
.mtc-pos__cart-item-remove {
  background: none;
  border: none;
  color: var(--c-text-secondary);
  font-size: 20px;
  line-height: 1;
  padding: 4px;
  cursor: pointer;
}
.mtc-pos__cart-item-remove:hover {
  color: var(--c-error);
}

/* --- Right Panel: Totals, Actions --- */
.mtc-pos__meta-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 16px;
  flex-shrink: 0;
}
.meta-btn {
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  background-color: var(--c-secondary);
  color: var(--c-secondary-text);
  border: 1px solid var(--c-border);
  border-radius: var(--border-radius);
  text-decoration: none;
  cursor: pointer;
  transition: background-color .2s, border-color .2s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}
.meta-btn:hover {
  background-color: #e0e0e0;
  border-color: #ccc;
}
#mtc-pos-customer-label, #mtc-pos-staff-label {
  font-weight: bold;
}
.mtc-pos__totals-panel {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--c-border);
  flex-shrink: 0;
}
.mtc-pos__totals-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 14px;
}
.mtc-pos__totals-row--grand {
  font-weight: bold;
  font-size: 18px;
  margin-top: 8px;
  border-top: 2px solid var(--c-text);
  padding-top: 8px;
}
.mtc-pos__actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 16px;
  flex-shrink: 0;
}

/* --- Buttons --- */
button {
  padding: 12px;
  font-size: 16px;
  font-weight: bold;
  border: 1px solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color .2s, color .2s;
  background-color: var(--c-accent);
  color: var(--c-accent-text);
}
button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
button.secondary {
  background-color: var(--c-secondary);
  color: var(--c-secondary-text);
  border-color: var(--c-border);
}
button:not(:disabled):hover {
  background-color: #333;
}
button.secondary:not(:disabled):hover {
  background-color: #e0e0e0;
}

/* --- Modals --- */
.mtc-pos__modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
}
.mtc-pos__modal.show {
  display: flex;
}
.mtc-pos__modal-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0,0,0,0.5);
}
.mtc-pos__modal-dialog {
  background-color: var(--c-surface);
  border-radius: var(--border-radius);
  width: 100%;
  max-width: 450px;
  z-index: 1;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}
.mtc-pos__modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid var(--c-border);
}
.mtc-pos__modal-title {
  font-size: 18px;
  font-weight: 500;
}
.mtc-pos__modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--c-text-secondary);
  padding: 0;
  line-height: 1;
}
.mtc-pos__modal-body {
  padding: 16px;
}
.mtc-pos__modal-footer {
  padding: 16px;
  border-top: 1px solid var(--c-border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* --- Modal Specifics --- */
.mtc-pos__paylist-modal {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.mtc-pos__paylist-modal input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.mtc-pos__paylist-modal span {
  display: block;
  text-align: center;
  padding: 16px 12px;
  border: 1px solid var(--c-border);
  border-radius: var(--border-radius);
  transition: background-color .2s, border-color .2s, color .2s;
  font-weight: 500;
  cursor: pointer;
}
.mtc-pos__paylist-modal input[type="radio"]:checked + span {
  background-color: var(--c-accent);
  color: var(--c-accent-text);
  border-color: var(--c-accent);
}
.mtc-pos__paylist-modal label:hover span {
  border-color: #999;
}
.mtc-pos__cash-pane { 
  display: grid; 
  grid-template-columns: auto 1fr;
  gap: 12px; 
  border-top: 1px solid var(--c-border); 
  padding-top: 16px; 
  align-items: center;
}
.mtc-pos__cash-row {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.mtc-pos__cash-label { 
  font-size: 16px;
  font-weight: 500;
}
#mtc-pos-cash-received { 
  font-size: 18px; 
  padding: 8px; 
  border-radius: var(--border-radius); 
  border: 1px solid var(--c-border); 
  max-width: 180px;
  text-align: right;
}
#mtc-pos-cash-change { font-size: 22px; font-weight: bold; }

.mtc-pos__settings-grid, .mtc-pos__customer-fields { display: grid; grid-template-columns: auto 1fr; gap: 12px 16px; align-items: center; }
.mtc-pos__customer-fields { grid-template-columns: 1fr; }
.mtc-pos__settings-grid label, .mtc-pos__customer-fields label { font-weight: 500; }
.mtc-pos__settings-grid input, .mtc-pos__settings-grid select, .mtc-pos__customer-fields input { width: 100%; padding: 8px 12px; border: 1px solid var(--c-border); border-radius: var(--border-radius); font-size: 14px; }

/* --- Toast Notification --- */
.mtc-pos__toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background-color: var(--c-accent); color: var(--c-accent-text); padding: 12px 20px; border-radius: var(--border-radius); z-index: 200; box-shadow: 0 5px 15px rgba(0,0,0,0.2); display: none; }

/* --- Report Modal --- */
#mtc-pos-report-body { min-height: 200px; }

/* --- Cash Suggest Buttons --- */
.mtc-pos__cash-suggest {
    grid-column: 1 / -1;
    display: flex;
    gap: 8px;
    margin: 4px 0 12px 0;
}
.mtc-pos__btn-suggest {
    flex: 1;
    padding: 8px;
    font-size: 13px;
    background: #f0f0f0;
    border: 1px solid #ddd;
    border-radius: 6px;
    cursor: pointer;
    color: var(--c-text);
    font-weight: 500;
}
.mtc-pos__btn-suggest:hover {
    background: #e0e0e0;
    border-color: #ccc;
    color: #000;
}

/* --- Settings Modal Heading --- */
.mtc-pos__settings-grid h4 {
    grid-column: 1 / -1;
    margin-top: 16px;
    margin-bottom: 4px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--c-border);
    font-size: 16px;
}
.mtc-pos__settings-grid h4:first-child {
    margin-top: 0;
}