/* ==========================================================================
   KALIVA INVOICE POS - ENTERPRISE LIGHT & CRISP WORKSPACE
   Aesthetic: Clean White, Ocean Blue & Professional High-Density Accounting
   ========================================================================== */

:root {
  /* Slate & Neutral Scale - Sáng sủa, sạch sẽ */
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50:  #f8fafc;
  --white:     #ffffff;

  /* Primary Brand: Kaliva Ocean Blue (Thủy sản / Chuyên nghiệp) */
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-light: #f0f9ff;
  --primary-border: #bae6fd;
  --primary-dark: #075985;

  /* Semantic Accents */
  --success: #16a34a;
  --success-light: #f0fdf4;
  --success-border: #bbf7d0;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --amber: #d97706;
  --amber-light: #fffbeb;

  /* System UI Tokens */
  --surface: #ffffff;
  --background: #f8fafc;
  --preview-bg: #e2e8f0;
  --border: #d1d5db;
  --border-light: #e5e7eb;
  --border-focus: #0284c7;

  --text-main: #1e293b;
  --text-sub: #475569;
  --text-muted: #64748b;

  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--background);
  color: var(--text-main);
  line-height: 1.45;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
  height: 100vh;
  overflow: hidden;
}

.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* ==========================================================================
   TOP APPLICATION BAR (Sáng sủa, tinh tế, chuẩn POS hiện đại)
   ========================================================================== */
.top-navbar {
  height: 54px;
  background: #ffffff;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  color: var(--text-main);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  flex-shrink: 0;
  z-index: 50;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo-img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  border-radius: var(--radius-xs);
  display: block;
}

.brand-badge {
  background: var(--primary);
  color: #ffffff;
  font-weight: 800;
  font-size: 13px;
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  letter-spacing: 0.5px;
}

.brand-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--slate-800);
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 11px;
  color: var(--slate-500);
  line-height: 1.2;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Buttons */
.btn {
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  user-select: none;
  white-space: nowrap;
}

.btn-nav-ghost {
  background: #ffffff;
  color: var(--slate-700);
  border-color: var(--slate-300);
}

.btn-nav-ghost:hover {
  background: var(--slate-100);
  color: var(--slate-900);
  border-color: var(--slate-400);
}

/* Nút trạng thái Đã Đồng Bộ Thành Công (Màu xanh lá nhẹ chuyên nghiệp) */
.btn-synced {
  background: #f0fdf4 !important;
  color: #15803d !important;
  border-color: #86efac !important;
  font-weight: 600 !important;
}

.btn-synced svg {
  stroke: #16a34a !important;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 1px 2px rgba(2, 132, 199, 0.2);
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-outline {
  background: #ffffff;
  border-color: var(--slate-300);
  color: var(--slate-700);
}

.btn-outline:hover {
  background: var(--slate-50);
  color: var(--slate-900);
  border-color: var(--slate-400);
}

.btn-sm {
  padding: 4px 8px;
  font-size: 11px;
}

/* ==========================================================================
   WORKSPACE SPLIT VIEW
   ========================================================================== */
.main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
  height: calc(100vh - 54px);
}

/* 1. Left Operator Form */
.form-panel {
  width: 52%;
  min-width: 620px;
  max-width: 820px;
  background: #ffffff;
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  padding: 16px 20px;
  gap: 14px;
}

/* 2. Right Live Preview Stage */
.preview-panel {
  flex: 1;
  background: #eef2f6;
  overflow-y: auto;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.preview-toolbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #ffffff;
  color: var(--slate-700);
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--slate-300);
}

.preview-toolbar-badge {
  color: var(--primary);
  font-weight: 700;
}

/* ==========================================================================
   SECTION PANELS & FORM CONTROLS
   ========================================================================== */
.section-panel {
  background: #ffffff;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.section-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--slate-200);
}

.section-panel-title {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--slate-800);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Form Layout Grids */
.row-grid {
  display: grid;
  gap: 10px;
  margin-bottom: 8px;
}

.row-grid:last-child {
  margin-bottom: 0;
}

.grid-col-2 { grid-template-columns: 1fr 1fr; }
.grid-col-3 { grid-template-columns: 1fr 1fr 1fr; }
.grid-custom-meta { grid-template-columns: 130px 140px 1fr 125px; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.form-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--slate-700);
}

.form-control {
  font-family: inherit;
  font-size: 12px;
  padding: 5px 8px;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-xs);
  background-color: #ffffff;
  color: var(--slate-900);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  height: 31px;
  width: 100%;
}

.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.15);
}

.form-control[readonly] {
  background-color: var(--slate-100);
  color: var(--slate-600);
}

/* Select Box */
select.form-control {
  cursor: pointer;
  padding-right: 22px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  appearance: none;
}

/* Autocomplete Customer Suggestions Box */
.autocomplete-wrapper {
  position: relative;
}

.customer-suggestions-box {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 100;
  background: #ffffff;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-xs);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
  max-height: 180px;
  overflow-y: auto;
  display: none;
}

.customer-suggestion-item {
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  justify-content: space-between;
}

.customer-suggestion-item:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
}

/* Quick Search & Fast Product Insertion Bar */
.product-search-bar {
  display: flex;
  gap: 8px;
  background: var(--slate-50);
  border: 1px solid var(--slate-300);
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  align-items: center;
  margin-bottom: 8px;
}

.product-search-input {
  flex: 1;
  height: 30px;
  font-weight: 500;
  border-color: var(--slate-300);
  background: #ffffff;
}

.price-tier-badge-select {
  height: 30px;
  font-weight: 600;
  color: var(--slate-800);
  background-color: #ffffff;
  border-color: var(--slate-300);
  min-width: 200px;
}

/* Quick Product Buttons Bar */
.quick-product-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 8px;
}

.quick-product-chip {
  font-size: 11px;
  font-weight: 500;
  background: #ffffff;
  color: var(--slate-800);
  border: 1px solid var(--slate-300);
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s;
}

.quick-product-chip:hover {
  background: var(--slate-100);
  border-color: var(--slate-400);
  color: var(--primary);
}

.quick-product-chip strong {
  color: var(--primary-dark);
  font-weight: 700;
}

/* ==========================================================================
   HIGH SPEED ITEMS TABLE
   ========================================================================== */
.table-scroll-wrapper {
  overflow-x: auto;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-xs);
  background: #ffffff;
}

.items-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.items-table th {
  background: var(--slate-100);
  color: var(--slate-800);
  font-weight: 700;
  font-size: 11.5px;
  padding: 6px 8px;
  border-bottom: 1px solid var(--slate-300);
  border-right: 1px solid var(--slate-200);
  white-space: nowrap;
  text-align: left;
}

.items-table th:last-child {
  border-right: none;
}

.items-table td {
  padding: 4px 6px;
  border-bottom: 1px solid var(--slate-200);
  border-right: 1px solid var(--slate-200);
  vertical-align: middle;
}

.items-table td:last-child {
  border-right: none;
}

.items-table tr:hover {
  background-color: #fafbfc;
}

.items-table .table-input {
  width: 100%;
  height: 27px;
  padding: 2px 6px;
  font-size: 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  background: transparent;
  outline: none;
  font-family: inherit;
}

.items-table .table-input:hover {
  border-color: var(--slate-300);
  background: #ffffff;
}

.items-table .table-input:focus {
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 1px var(--primary);
}

.items-table .cell-numeric {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.items-table .cell-subtotal {
  font-weight: 700;
  color: var(--slate-900);
  text-align: right;
  padding-right: 6px;
}

.btn-del-row {
  background: none;
  border: none;
  color: var(--slate-400);
  cursor: pointer;
  padding: 2px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, background 0.15s;
}

.btn-del-row:hover {
  color: var(--danger);
  background: var(--danger-light);
}

/* ==========================================================================
   SETTLEMENT & PAYMENT SUMMARY (Fix overflow & CSS precision)
   ========================================================================== */
.settlement-panel {
  background: #ffffff;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
  align-items: start;
}

.settlement-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0; /* Prevents flex children from overflowing */
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  min-width: 0;
}

.summary-label {
  color: var(--slate-600);
  font-weight: 600;
  white-space: nowrap;
}

.summary-val {
  font-weight: 700;
  color: var(--slate-900);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}

.summary-val-lg {
  font-size: 15px;
  color: var(--primary-dark);
}

.summary-val-debt {
  color: var(--amber);
}

/* Khắc phục lỗi tràn viền của ô Khách thanh toán */
.paid-amount-input-wrapper {
  width: 120px;
  flex-shrink: 0;
}

.paid-amount-input-wrapper .form-control {
  height: 29px;
  text-align: right;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  padding: 4px 6px;
}

/* Modal Popup */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: #ffffff;
  width: 90%;
  max-width: 520px;
  border-radius: var(--radius-md);
  border: 1px solid var(--slate-300);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
  overflow: hidden;
}

.modal-header {
  background: #ffffff;
  color: var(--slate-800);
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--slate-200);
}

.modal-title {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--slate-800);
}

.modal-close,
.btn-close-modal {
  background: none;
  border: none;
  color: var(--slate-400);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: color 0.15s, background-color 0.15s;
}

.modal-close:hover,
.btn-close-modal:hover {
  color: var(--slate-700);
  background-color: var(--slate-100);
}

.modal-body {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-footer {
  background: var(--slate-50);
  border-top: 1px solid var(--slate-200);
  padding: 10px 18px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* Toast Notifications - Clean Light Toast, No Black, No Left Border Strip */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
}

/* Developer & System Credit at Bottom of Console */
.app-footer-credit {
  margin-top: auto;
  padding-top: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--slate-400);
}

.app-footer-credit strong {
  color: var(--slate-600);
  font-weight: 600;
}

.toast {
  background: #ffffff;
  color: var(--slate-800);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08), 0 1px 4px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--slate-200);
  border-left: none; /* Bỏ hẳn border-left */
  animation: slideInToast 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast-success {
  background: #ffffff;
  border-color: #bbf7d0;
  color: #14532d;
}

.toast-warning {
  background: #ffffff;
  border-color: #fde68a;
  color: #78350f;
}

.toast-info {
  background: #ffffff;
  border-color: #bae6fd;
  color: #0369a1;
}

@keyframes slideInToast {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}