/* ===== POS Management System - Main CSS ===== */
/* Design System: Primary #0056D2, Secondary #2E7D32, Font: Manrope/Inter */

@import url('fonts.css');
@import url('fontawesome/all.min.css');

/* Icon sizing helpers */
.btn i, .nav-item i { font-size: 13px; }
.icon-btn i { font-size: 16px; }
.stat-icon i { font-size: 22px; }
.nav-icon i { font-size: 15px; }

:root {
  --primary: #0040a1;
  --primary-container: #0056d2;
  --on-primary: #ffffff;
  --secondary: #1b6d24;
  --secondary-container: #a0f399;
  --on-secondary: #ffffff;
  --tertiary: #822800;
  --error: #ba1a1a;
  --surface: #f7f9fb;
  --surface-bright: #f7f9fb;
  --surface-container: #eceef0;
  --surface-container-high: #e6e8ea;
  --surface-container-highest: #e0e3e5;
  --surface-container-low: #f2f4f6;
  --surface-container-lowest: #ffffff;
  --surface-dim: #d8dadc;
  --on-surface: #191c1e;
  --on-surface-variant: #424654;
  --outline: #737785;
  --outline-variant: #c3c6d6;
  --inverse-surface: #2d3133;
  --sidebar-width: 240px;
  --navbar-height: 64px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-sm: 0 1px 3px rgba(25,28,30,0.06), 0 1px 2px rgba(25,28,30,0.04);
  --shadow-md: 0 4px 12px rgba(25,28,30,0.08);
  --shadow-lg: 0 12px 32px rgba(25,28,30,0.10);
  --transition: 200ms ease;
}

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

body {
  font-family: 'Noto Sans', 'Inter', sans-serif;
  font-size: 14px;
  color: var(--on-surface);
  background: var(--surface);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 { font-family: 'Noto Sans', 'Manrope', sans-serif; font-weight: 700; }

a { text-decoration: none; color: inherit; }

/* ===== LAYOUT ===== */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--surface-container-lowest);
  border-right: 1px solid var(--outline-variant);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
  transition: transform var(--transition);
  box-shadow: var(--shadow-sm);
}

.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--outline-variant);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-logo .logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 18px;
}

.sidebar-logo .logo-text {
  font-family: 'Noto Sans', 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 15px;
  color: var(--on-surface);
  line-height: 1.2;
}

.sidebar-logo .logo-text span {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--on-surface-variant);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  padding: 12px 20px 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: 0;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  color: var(--on-surface-variant);
  font-size: 13.5px;
  font-weight: 500;
  position: relative;
}

.nav-item:hover {
  background: var(--surface-container-low);
  color: var(--on-surface);
}

.nav-item.active {
  background: #dae2ff;
  color: var(--primary);
  font-weight: 600;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}

.nav-item .nav-icon {
  width: 20px; height: 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.nav-badge {
  margin-left: auto;
  background: var(--primary);
  color: white;
  font-size: 10px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 10px;
}

.nav-group { cursor: pointer; }
.nav-submenu { overflow: hidden; }
.nav-sub-item {
  padding-left: 48px;
  font-size: 13px;
}
.nav-sub-item.active {
  background: #dae2ff;
  color: var(--primary);
  font-weight: 600;
}
.nav-sub-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}

/* Submenu */
.nav-group { cursor: pointer; user-select: none; }
.nav-submenu { background: var(--surface-container-low); }
.nav-sub-item {
  padding-left: 44px;
  font-size: 13px;
}
.nav-sub-item.active {
  background: #dae2ff;
  color: var(--primary);
  font-weight: 600;
}
.nav-sub-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--outline-variant);
}

/* ===== MAIN CONTENT ===== */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== NAVBAR ===== */
.navbar {
  height: var(--navbar-height);
  background: var(--surface-container-lowest);
  border-bottom: 1px solid var(--outline-variant);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.navbar-title {
  font-family: 'Noto Sans', 'Manrope', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--on-surface);
  flex: 1;
}

.navbar-search {
  display: flex;
  align-items: center;
  background: var(--surface-container-low);
  border-radius: var(--radius-xl);
  padding: 8px 14px;
  gap: 8px;
  width: 260px;
  border: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.navbar-search:focus-within {
  border-color: var(--primary);
  background: var(--surface-container-lowest);
}

.navbar-search input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 13px;
  color: var(--on-surface);
  width: 100%;
}

.navbar-search input::placeholder { color: var(--on-surface-variant); }

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

.icon-btn {
  width: 38px; height: 38px;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--on-surface-variant);
  font-size: 18px;
  transition: background var(--transition), color var(--transition);
  position: relative;
}

.icon-btn:hover {
  background: var(--surface-container);
  color: var(--on-surface);
}

.icon-btn .badge {
  position: absolute;
  top: 6px; right: 6px;
  width: 8px; height: 8px;
  background: var(--error);
  border-radius: 50%;
  border: 2px solid white;
}

.user-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: 'Noto Sans', 'Manrope', sans-serif;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

.user-info:hover { background: var(--surface-container); }

.user-info .user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--on-surface);
}

.user-info .user-role {
  font-size: 11px;
  color: var(--on-surface-variant);
}

/* ===== PAGE CONTENT ===== */
.page-content {
  flex: 1;
  padding: 24px;
  background: var(--surface);
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 22px;
  font-weight: 800;
  color: var(--on-surface);
}

.page-header p {
  font-size: 13px;
  color: var(--on-surface-variant);
  margin-top: 2px;
}

/* ===== CARDS ===== */
.card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--outline-variant);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--on-surface);
}

.card-body { padding: 20px; }

/* ===== STAT CARDS ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.stat-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.stat-icon.blue { background: #dae2ff; color: var(--primary); }
.stat-icon.green { background: #a3f69c; color: var(--secondary); }
.stat-icon.orange { background: #ffdbcf; color: var(--tertiary); }
.stat-icon.purple { background: #e8d5ff; color: #6a1b9a; }

.stat-info { flex: 1; }

.stat-value {
  font-family: 'Noto Sans', 'Manrope', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--on-surface);
  line-height: 1.2;
}

.stat-label {
  font-size: 12px;
  color: var(--on-surface-variant);
  margin-top: 2px;
}

.stat-change {
  font-size: 12px;
  font-weight: 600;
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 3px;
}

.stat-change.up { color: var(--secondary); }
.stat-change.down { color: var(--error); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  font-family: 'Noto Sans', 'Inter', sans-serif;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: white;
  box-shadow: 0 2px 8px rgba(0,64,161,0.25);
}

.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(0,64,161,0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--secondary-container);
  color: #002204;
}

.btn-secondary:hover { background: #88d982; }

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--outline-variant);
  color: var(--on-surface);
}

.btn-outline:hover {
  background: var(--surface-container);
  border-color: var(--outline);
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
}

.btn-ghost:hover { background: #dae2ff; }

.btn-danger {
  background: var(--error);
  color: white;
}

.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }

/* ===== TABLE ===== */
.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  padding: 12px 16px;
  text-align: left;
  background: var(--surface-container-low);
  border-bottom: 1px solid var(--outline-variant);
}

tbody tr {
  border-bottom: 1px solid var(--surface-container);
  transition: background var(--transition);
}

tbody tr:hover { background: var(--surface-container-low); }

tbody td {
  padding: 13px 16px;
  font-size: 13.5px;
  color: var(--on-surface);
  vertical-align: middle;
}

tbody tr:last-child { border-bottom: none; }

/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 600;
}

.badge-success { background: #a3f69c; color: #002204; }
.badge-warning { background: #ffdbcf; color: #822800; }
.badge-error { background: #ffdad6; color: #93000a; }
.badge-info { background: #dae2ff; color: var(--primary); }
.badge-neutral { background: var(--surface-container-high); color: var(--on-surface-variant); }

/* ===== FORMS ===== */
.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--outline-variant);
  background: var(--surface-container-low);
  font-size: 13.5px;
  color: var(--on-surface);
  font-family: 'Noto Sans', 'Inter', sans-serif;
  transition: border-color var(--transition), background var(--transition);
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  background: var(--surface-container-lowest);
  box-shadow: 0 0 0 3px rgba(0,86,210,0.12);
}

.form-control::placeholder { color: var(--on-surface-variant); }

select.form-control { cursor: pointer; }

/* ===== PAGINATION ===== */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 16px 20px;
  border-top: 1px solid var(--outline-variant);
  justify-content: flex-end;
}

.pagination-info {
  font-size: 12.5px;
  color: var(--on-surface-variant);
  margin-right: auto;
}

.page-btn {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--outline-variant);
  background: transparent;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  color: var(--on-surface-variant);
  transition: all var(--transition);
}

.page-btn:hover {
  background: var(--surface-container);
  color: var(--on-surface);
}

.page-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===== GRID LAYOUTS ===== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ===== CHART PLACEHOLDER ===== */
.chart-container {
  position: relative;
  height: 240px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 0 4px;
}

.chart-bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--primary-container), var(--primary));
  opacity: 0.85;
  transition: opacity var(--transition);
  cursor: pointer;
  position: relative;
}

.chart-bar:hover { opacity: 1; }

.chart-bar .tooltip {
  position: absolute;
  top: -32px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--inverse-surface);
  color: white;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.chart-bar:hover .tooltip { opacity: 1; }

.chart-labels {
  display: flex;
  gap: 8px;
  padding: 8px 4px 0;
}

.chart-labels span {
  flex: 1;
  text-align: center;
  font-size: 11px;
  color: var(--on-surface-variant);
}

/* ===== DONUT CHART ===== */
.donut-chart {
  width: 140px; height: 140px;
  border-radius: 50%;
  background: conic-gradient(
    var(--primary) 0% 45%,
    var(--secondary) 45% 70%,
    var(--tertiary) 70% 85%,
    var(--surface-container-high) 85% 100%
  );
  position: relative;
  margin: 0 auto;
}

.donut-chart::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 80px; height: 80px;
  background: var(--surface-container-lowest);
  border-radius: 50%;
}

/* ===== SEARCH & FILTER BAR ===== */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--outline-variant);
  flex-wrap: wrap;
}

.search-input-wrap {
  display: flex;
  align-items: center;
  background: var(--surface-container-low);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  gap: 8px;
  border: 1.5px solid transparent;
  transition: border-color var(--transition);
  flex: 1;
  min-width: 200px;
  max-width: 320px;
}

.search-input-wrap:focus-within {
  border-color: var(--primary);
  background: var(--surface-container-lowest);
}

.search-input-wrap input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 13px;
  color: var(--on-surface);
  width: 100%;
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(25,28,30,0.5);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform var(--transition);
}

.modal-overlay.open .modal { transform: translateY(0); }

.modal-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--outline-variant);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 17px;
  font-weight: 700;
}

.modal-body { padding: 20px 24px; }

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--outline-variant);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ===== AVATAR ===== */
.avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  font-weight: 700;
  font-family: 'Noto Sans', 'Manrope', sans-serif;
  flex-shrink: 0;
}

/* ===== PRODUCT CARD (POS) ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.product-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  padding: 14px;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-align: center;
}

.product-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.product-card.selected {
  border-color: var(--primary);
  background: #dae2ff;
}

.product-card .product-img {
  width: 60px; height: 60px;
  border-radius: var(--radius-md);
  background: var(--surface-container);
  margin: 0 auto 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
}

.product-card .product-name {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 4px;
}

.product-card .product-price {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--outline-variant); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--outline); }

/* ===== UTILITIES ===== */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.text-sm { font-size: 12px; }
.text-muted { color: var(--on-surface-variant); }
.font-bold { font-weight: 700; }
.w-full { width: 100%; }

/* ===== SIDEBAR COLLAPSE (desktop) ===== */
.sidebar-collapse-btn {
  width: 28px; height: 28px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--outline-variant);
  background: var(--surface-container-low);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--on-surface-variant);
  font-size: 11px;
  margin-left: auto;
  flex-shrink: 0;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.sidebar-collapse-btn:hover {
  background: var(--surface-container);
  color: var(--on-surface);
}

/* Collapsed state */
.sidebar.collapsed {
  width: 64px;
}
.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-section-label,
.sidebar.collapsed .nav-item > span:not(.nav-icon),
.sidebar.collapsed .nav-group-arrow,
.sidebar.collapsed .nav-badge,
.sidebar.collapsed .sidebar-footer .nav-item > span:not(.nav-icon) {
  display: none;
}
.sidebar.collapsed .sidebar-logo {
  justify-content: center;
  padding: 20px 12px 16px;
}
.sidebar.collapsed .sidebar-collapse-btn {
  display: none;
}
.sidebar.collapsed .nav-item {
  justify-content: center;
  padding: 10px;
}
.sidebar.collapsed .nav-icon {
  width: 24px; height: 24px;
}
.sidebar.collapsed .nav-submenu {
  display: none !important;
}
.sidebar.collapsed ~ .main-content {
  margin-left: 64px;
}

/* Navbar hamburger button */
.navbar-menu-btn {
  width: 38px; height: 38px;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  cursor: pointer;
  display: none;
  align-items: center; justify-content: center;
  color: var(--on-surface-variant);
  font-size: 18px;
  transition: background var(--transition);
  flex-shrink: 0;
}
.navbar-menu-btn:hover { background: var(--surface-container); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .sidebar-collapse-btn { display: none; }
  .sidebar.collapsed { width: var(--sidebar-width); }
  .sidebar.collapsed .logo-text,
  .sidebar.collapsed .nav-section-label,
  .sidebar.collapsed .nav-item > span:not(.nav-icon),
  .sidebar.collapsed .nav-group-arrow,
  .sidebar.collapsed .nav-badge {
    display: unset;
  }
  .sidebar.collapsed .nav-item {
    justify-content: flex-start;
    padding: 10px 20px;
  }
  .sidebar.collapsed ~ .main-content {
    margin-left: 0;
  }

  .sidebar {
    transform: translateX(-100%);
    z-index: 200;
  }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .navbar-menu-btn { display: flex; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }

  /* Page header stack on tablet */
  .page-header {
    flex-wrap: wrap;
    gap: 12px;
  }
  .page-header .btn-group,
  .page-header > div:last-child {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
}

@media (max-width: 600px) {
  .stats-grid { grid-template-columns: 1fr; }
  .page-content { padding: 12px; }
  .navbar { padding: 0 12px; gap: 8px; }
  .navbar-search { display: none; }
  .navbar-title { font-size: 15px; }

  /* User info: ẩn text, chỉ hiện avatar */
  .user-info .user-name,
  .user-info .user-role,
  .user-info i.fa-chevron-down { display: none; }

  /* Tables: scroll ngang */
  .table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table { min-width: 540px; }

  /* Cards */
  .card-header { flex-wrap: wrap; gap: 8px; }
  .card-body { padding: 12px; }

  /* Filter bar */
  .filter-bar { padding: 10px 12px; gap: 8px; }
  .search-input-wrap { max-width: 100%; }

  /* Buttons trong page header */
  .page-header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .page-header .btn { font-size: 12.5px; padding: 8px 14px; }

  /* Grid */
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }

  /* Modal full screen on mobile */
  .modal-overlay { padding: 0; align-items: flex-end; }
  .modal {
    max-width: 100%;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    max-height: 92vh;
  }

  /* Pagination */
  .pagination { padding: 10px 12px; flex-wrap: wrap; gap: 6px; }
  .pagination-info { width: 100%; margin-right: 0; }

  /* Stat cards */
  .stat-card { padding: 14px; gap: 12px; }
  .stat-value { font-size: 20px; }
  .stat-icon { width: 40px; height: 40px; font-size: 18px; }
}

/* Topnav responsive (horizontal menu mode) */
@media (max-width: 768px) {
  .topnav-menu { overflow-x: auto; }
  .topnav-item { font-size: 12px; padding: 5px 8px; }
  .topnav-logo .logo-text span { display: none; }
}

/* ===== HORIZONTAL MENU (menu-mode: horizontal) ===== */
body.menu-horizontal .sidebar { display: none !important; }
body.menu-horizontal .main-content { margin-left: 0 !important; }
body.menu-horizontal .app-layout { flex-direction: column; }

/* Top bar chứa logo + menu ngang */
.topnav {
  display: none;
  background: var(--surface-container-lowest);
  border-bottom: 1px solid var(--outline-variant);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

body.menu-horizontal .topnav { display: block; }

.topnav-inner {
  display: flex;
  align-items: center;
  height: 52px;
  padding: 0 20px;
  gap: 0;
}

/* Logo trong topnav */
.topnav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-right: 20px;
  border-right: 1px solid var(--outline-variant);
  margin-right: 8px;
  flex-shrink: 0;
  text-decoration: none;
  color: inherit;
}

.topnav-logo .logo-icon {
  width: 30px; height: 30px;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 14px;
  flex-shrink: 0;
}

.topnav-logo .logo-text {
  font-family: 'Noto Sans', 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 14px;
  line-height: 1.2;
  white-space: nowrap;
}

.topnav-logo .logo-text span {
  display: block;
  font-size: 10px;
  font-weight: 500;
  color: var(--on-surface-variant);
}

/* Menu items ngang */
.topnav-menu {
  display: flex;
  align-items: center;
  flex: 1;
  gap: 2px;
  overflow-x: visible;
  overflow-y: visible;
  scrollbar-width: none;
}
.topnav-menu::-webkit-scrollbar { display: none; }

.topnav-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  color: var(--on-surface-variant);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
  position: relative;
}

.topnav-item:hover {
  background: var(--surface-container);
  color: var(--on-surface);
}

.topnav-item.active {
  background: #dce8ff;
  color: var(--primary);
  font-weight: 700;
  border-bottom: 2.5px solid var(--primary);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.topnav-item i { font-size: 13px; }

/* Dropdown cho group có submenu */
.topnav-group { position: relative; }

.topnav-group-arrow {
  font-size: 9px;
  margin-left: 2px;
  transition: transform .2s;
}

/* Pseudo-element lấp khoảng gap giữa trigger và dropdown */
.topnav-group::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 8px;
  z-index: 199;
}

.topnav-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  z-index: 200;
  padding: 6px;
  /* Bridge gap: margin âm kéo dropdown lên sát ::after */
  margin-top: -6px;
  padding-top: 10px;
}

.topnav-group:hover .topnav-dropdown,
.topnav-group:focus-within .topnav-dropdown {
  display: block;
}

.topnav-group:hover .topnav-item .topnav-group-arrow {
  transform: rotate(180deg);
}

.topnav-dropdown a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--on-surface);
  text-decoration: none;
  transition: background var(--transition);
  white-space: nowrap;
}

.topnav-dropdown a:hover {
  background: var(--surface-container);
  color: var(--on-surface);
}

.topnav-dropdown a.active {
  background: #dce8ff;
  color: var(--primary);
  font-weight: 600;
  border-left: 3px solid var(--primary);
  padding-left: 9px;
}

/* Section label trong dropdown */
.topnav-section-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--on-surface-variant);
  padding: 6px 12px 2px;
}

/* Khi menu ngang: ẩn navbar gốc (topnav thay thế), ẩn menu-btn */
body.menu-horizontal .navbar { display: none !important; }
body.menu-horizontal .navbar-menu-btn { display: none !important; }

/* ── Print receipt ─────────────────────────────────────────── */
@media print {
  body > * { display: none !important; }
  body > #receipt { display: block !important; }
  #receipt {
    width: 190mm !important;
    margin: 0 auto !important;
    padding: 0 !important;
  }
}