/* ==========================================================================
   COMPONENTS
   ========================================================================== */

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 42px;
  padding: 0 var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast);
  white-space: nowrap;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--color-primary-dark); }

.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border-strong); }
.btn-secondary:hover:not(:disabled) { background: var(--color-bg); }

.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover:not(:disabled) { background: #d5372b; }

.btn-ghost { background: transparent; color: var(--color-text-secondary); }
.btn-ghost:hover:not(:disabled) { background: var(--color-bg); color: var(--color-text); }

.btn-sm { height: 34px; padding: 0 var(--space-3); font-size: var(--text-sm); border-radius: var(--radius-sm); }
.btn-lg { height: 48px; padding: 0 var(--space-6); font-size: var(--text-md); }
.btn-icon { width: 42px; padding: 0; }
.btn-block { width: 100%; }

/* ---- Forms ---- */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.field label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
}
.field-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.field-error {
  font-size: var(--text-xs);
  color: var(--color-danger);
}

.input, .select, .textarea {
  height: 44px;
  padding: 0 var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.textarea { height: auto; min-height: 96px; padding: var(--space-3); resize: vertical; }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.input.has-error, .select.has-error {
  border-color: var(--color-danger);
}
.input:disabled, .select:disabled {
  background: var(--color-bg);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.input-group { position: relative; display: flex; align-items: center; }
.input-group .input { padding-left: 2.5rem; }
.input-group-icon {
  position: absolute; left: var(--space-3);
  color: var(--color-text-muted);
  display: flex;
}

/* ---- Input + action button row (e.g. a barcode field with a Scan button
   beside it). Unlike .input-group (icon *inside* the input on the left),
   this puts a full separate button beside the input. ---- */
.input-button-row {
  display: flex;
  gap: var(--space-2);
  align-items: stretch;
}
.input-button-row .input,
.input-button-row .input-group { flex: 1; min-width: 0; }
.input-button-row .btn-icon { flex-shrink: 0; }

.checkbox-row { display: flex; align-items: center; gap: var(--space-2); }
.checkbox-row input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--color-primary); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ---- Cards ---- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
}
.card-body { padding: var(--space-6); }
.card-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.card-header h2, .card-header h3 { font-size: var(--text-lg); }
.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
}

/* ---- Stat cards (dashboard) ---- */
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.stat-card .stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.stat-card .stat-value {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
}
.stat-card .stat-delta {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
}
.stat-delta.up { color: var(--color-success); }
.stat-delta.down { color: var(--color-danger); }

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  line-height: 1.8;
  white-space: nowrap;
}
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.badge-info { background: var(--color-info-bg); color: var(--color-info); }
.badge-neutral { background: var(--color-bg); color: var(--color-text-secondary); }

.role-badge { background: var(--color-bg); }
.role-OWNER { color: var(--color-owner); background: color-mix(in srgb, var(--color-owner) 12%, white); }
.role-ADMIN { color: var(--color-admin); background: color-mix(in srgb, var(--color-admin) 12%, white); }
.role-MANAGER { color: var(--color-manager); background: color-mix(in srgb, var(--color-manager) 12%, white); }
.role-CASHIER { color: var(--color-cashier); background: color-mix(in srgb, var(--color-cashier) 12%, white); }
.role-STOREKEEPER { color: var(--color-storekeeper); background: color-mix(in srgb, var(--color-storekeeper) 12%, white); }
.role-ACCOUNTANT { color: var(--color-accountant); background: color-mix(in srgb, var(--color-accountant) 12%, white); }

/* ---- Table ---- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
table.table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}
.table th, .table td {
  text-align: left;
  padding: var(--space-4);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
.table th {
  color: var(--color-text-secondary);
  font-weight: var(--font-semibold);
  background: var(--color-bg);
  position: sticky;
  top: 0;
}
.table tbody tr:hover { background: var(--color-primary-50); }
.table tbody tr:last-child td { border-bottom: none; }
.table td.actions { display: flex; gap: var(--space-2); white-space: nowrap; }
.table .cell-primary { font-weight: var(--font-medium); color: var(--color-text); }

/* ---- Empty state ---- */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
  color: var(--color-text-secondary);
}
.empty-state .empty-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-3);
  opacity: 0.6;
}
.empty-state h3 { margin-bottom: var(--space-2); color: var(--color-text); }

/* ---- Loading ---- */
.spinner {
  width: 20px; height: 20px;
  border: 2.5px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.spinner-dark {
  border: 2.5px solid var(--color-border-strong);
  border-top-color: var(--color-primary);
}
@keyframes spin { to { transform: rotate(360deg); } }

.page-loader {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
}

.skeleton {
  background: linear-gradient(90deg, var(--color-border) 25%, #eef0f2 37%, var(--color-border) 63%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.4s ease infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-loading {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

/* ---- Modal ---- */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(16, 24, 40, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  padding: 0;
  animation: fade-in var(--transition-base);
}
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  width: 100%;
  max-width: 560px;
  max-height: 92vh;
  overflow-y: auto;
  z-index: var(--z-modal);
  box-shadow: var(--shadow-lg);
  animation: slide-up var(--transition-base);
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; background: var(--color-surface);
}
.modal-body { padding: var(--space-6); }
.modal-footer {
  display: flex; justify-content: flex-end; gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  position: sticky; bottom: 0; background: var(--color-surface);
}
.modal-close {
  background: none; border: none; cursor: pointer;
  color: var(--color-text-muted); font-size: 1.25rem;
  width: 32px; height: 32px; border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: var(--color-bg); color: var(--color-text); }

@media (min-width: 640px) {
  .modal-backdrop { align-items: center; padding: var(--space-6); }
  .modal { border-radius: var(--radius-lg); max-height: 88vh; }
}

@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes slide-up { from { transform: translateY(24px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ---- Barcode scanner modal (camera viewfinder) ---- */
.scanner-overlay {
  position: fixed; inset: 0;
  background: rgba(10, 14, 20, 0.92);
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  animation: fade-in var(--transition-base);
}
.scanner-modal {
  width: 100%;
  max-width: 480px;
  background: #0b0f14;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: slide-up var(--transition-base);
}
.scanner-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  color: #fff;
  font-weight: var(--font-semibold);
}
.scanner-close {
  background: rgba(255,255,255,0.12);
  border: none; color: #fff;
  width: 34px; height: 34px;
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}
.scanner-close:hover { background: rgba(255,255,255,0.22); }
.scanner-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  overflow: hidden;
}
.scanner-viewport video {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.scanner-viewport #scanner-html5-inner {
  width: 100%; height: 100%;
}
.scanner-frame {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 78%; height: 42%;
  border: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: 0 0 0 2000px rgba(0,0,0,0.35);
  pointer-events: none;
  z-index: 2;
}
.scanner-hint {
  padding: var(--space-4) var(--space-5);
  color: rgba(255,255,255,0.75);
  font-size: var(--text-sm);
  text-align: center;
}

@media (max-width: 640px) {
  .scanner-overlay { padding: 0; align-items: stretch; }
  .scanner-modal { max-width: none; height: 100%; border-radius: 0; }
  .scanner-viewport { flex: 1; aspect-ratio: auto; }
}

/* ---- Toasts ---- */
.toast-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  left: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: var(--z-toast);
  pointer-events: none;
}
@media (min-width: 640px) {
  .toast-container { left: auto; width: 360px; }
}
.toast {
  pointer-events: auto;
  background: var(--color-text);
  color: #fff;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  animation: toast-in var(--transition-base);
}
.toast-success { background: #0d7a4f; }
.toast-error { background: #b91c1c; }
.toast-warning { background: #b45309; }
.toast-icon { flex-shrink: 0; margin-top: 1px; }
.toast-close { margin-left: auto; background: none; border: none; color: inherit; opacity: 0.7; cursor: pointer; }
.toast-close:hover { opacity: 1; }
@keyframes toast-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

/* ---- Dropdown menu ---- */
.dropdown { position: relative; display: inline-block; }
.dropdown-menu {
  position: absolute; right: 0; top: calc(100% + 6px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  min-width: 180px;
  padding: var(--space-2);
  z-index: var(--z-dropdown);
}
.dropdown-menu button {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.dropdown-menu button:hover { background: var(--color-bg); }
.dropdown-menu button.danger { color: var(--color-danger); }

/* ---- Pagination ---- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  flex-wrap: wrap;
}
.pagination-pages { display: flex; gap: var(--space-1); }
.pagination-pages button {
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  font-size: var(--text-sm);
}
.pagination-pages button.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.pagination-pages button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---- Tabs ---- */
.tabs { display: flex; gap: var(--space-1); border-bottom: 1px solid var(--color-border); overflow-x: auto; }
.tab-btn {
  padding: var(--space-3) var(--space-4);
  background: none; border: none; border-bottom: 2px solid transparent;
  font-weight: var(--font-medium); color: var(--color-text-secondary);
  cursor: pointer; white-space: nowrap;
}
.tab-btn.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

/* ---- Search bar ---- */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-6);
  flex-wrap: wrap;
}
.toolbar-search { position: relative; max-width: 320px; flex: 1; min-width: 200px; }

/* ---- POS (Sales) layout ---- */
.pos-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 960px) {
  .pos-layout { grid-template-columns: 1fr 400px; align-items: start; }
  .pos-cart-panel { position: sticky; top: calc(var(--topbar-height) + var(--space-4)); }
}
.pos-search-results {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-height: 60vh;
  overflow-y: auto;
}
.pos-product-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.pos-product-card:hover { border-color: var(--color-primary); background: var(--color-primary-50); }

.pos-cart-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}
.pos-cart-item:last-child { border-bottom: none; }
.pos-qty-control {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.pos-qty-control button {
  width: 26px; height: 26px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  cursor: pointer;
  font-weight: var(--font-semibold);
}

.pos-totals-row { display: flex; justify-content: space-between; padding: 2px 0; font-size: var(--text-sm); }
.pos-totals-row.grand { font-size: var(--text-lg); font-weight: var(--font-bold); border-top: 1px solid var(--color-border); margin-top: var(--space-2); padding-top: var(--space-3); }

/* ---- POS scan-to-add row ---- */
.pos-scan-row {
  margin-bottom: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.pos-scan-hint {
  text-align: center;
}

.shift-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}
.shift-banner.open { background: var(--color-success-bg); color: var(--color-success); }
.shift-banner.closed { background: var(--color-warning-bg); color: var(--color-warning); }