/* ==========================================================================
   AIKA'S BOBA TEA POS & DASHBOARD SYSTEM - STYLESHEET
   Design Tokens: Warm Milk Tea Palette, Glassmorphism, Responsive Grid
   ========================================================================== */

:root {
  /* Color Palette - Milk Tea & Boba Aesthetic */
  --primary-milk: #5C3A21;       /* Deep Pearl Brown */
  --primary-light: #8C5C38;      /* Creamy Milk Tea Brown */
  --accent-gold: #E0A96D;       /* Warm Boba Golden Caramel */
  --accent-cream: #FFF8F0;      /* Fresh Milk Cream */
  --bg-cream: #FDF9F3;          /* Soft Cream Background */
  --bg-card: #FFFFFF;           /* Card White */
  
  --success-green: #2E7D32;     /* Matcha Green */
  --success-light: #E8F5E9;
  --danger-red: #D32F2F;        /* Strawberry Red */
  --danger-light: #FFEBEE;
  --purple-accent: #7B1FA2;     /* Taro Purple */
  --purple-light: #F3E5F5;

  --text-dark: #2B1E19;
  --text-muted: #7A685D;
  --border-color: #E8DEC8;
  --shadow-sm: 0 2px 8px rgba(92, 58, 33, 0.06);
  --shadow-md: 0 8px 24px rgba(92, 58, 33, 0.12);
  --shadow-lg: 0 16px 40px rgba(92, 58, 33, 0.18);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-pill: 50px;

  --font-main: 'Prompt', 'Kanit', sans-serif;
}

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-cream);
  color: var(--text-dark);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* App Container */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* --------------------------------------------------------------------------
   HEADER & NAVIGATION BAR
   -------------------------------------------------------------------------- */
.app-header {
  background: linear-gradient(135deg, var(--primary-milk), #3E2413);
  color: #FFFFFF;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 16px;
  flex-wrap: wrap;
}

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

.header-logo {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: contain;
  background: #FFF;
  padding: 2px;
  border: 2px solid var(--accent-gold);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--accent-gold);
}

.brand-tagline {
  font-size: 0.75rem;
  opacity: 0.85;
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  padding: 4px;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(8px);
}

.nav-btn {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.85);
  padding: 10px 18px;
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-pill);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
}

.nav-btn.active {
  background: var(--accent-gold);
  color: var(--primary-milk);
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(224, 169, 109, 0.4);
}

.nav-btn.locked {
  opacity: 0.6;
}

.badge-lock {
  font-size: 0.75rem;
  background: rgba(0, 0, 0, 0.25);
  padding: 2px 6px;
  border-radius: 10px;
}

/* User & Lock Status */
.user-bar {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-status {
  background: rgba(255, 255, 255, 0.15);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-lock {
  background: rgba(211, 47, 47, 0.2);
  border: 1px solid rgba(211, 47, 47, 0.4);
  color: #FFCDD2;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-family: var(--font-main);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.btn-lock:hover {
  background: var(--danger-red);
  color: #FFF;
}

/* --------------------------------------------------------------------------
   TAB CONTENT LAYOUTS
   -------------------------------------------------------------------------- */
.tab-content {
  display: none;
  flex: 1;
}

.tab-content.active {
  display: block;
}

/* --------------------------------------------------------------------------
   POS SCREEN (TAB 1)
   -------------------------------------------------------------------------- */
.pos-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  height: calc(100vh - 72px);
  overflow: hidden;
}

/* POS Menu Section */
.pos-menu-section {
  padding: 16px 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Category Filter Bar */
.category-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  padding: 6px 4px 10px 4px;
  scrollbar-width: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 4px;
  min-height: 54px;
}

.cat-btn {
  background: #FFFFFF !important;
  border: 2px solid #D4C3B3 !important;
  color: #3E2413 !important;
  padding: 8px 18px !important;
  border-radius: 50px !important;
  font-family: var(--font-main);
  font-size: 0.95rem !important;
  font-weight: 600 !important;
  line-height: 1.2 !important;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
  box-shadow: 0 2px 6px rgba(92, 58, 33, 0.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  opacity: 1 !important;
  visibility: visible !important;
}

.cat-btn.active {
  background: linear-gradient(135deg, #5C3A21, #3E2413) !important;
  color: #FFFFFF !important;
  border-color: #3E2413 !important;
  box-shadow: 0 4px 14px rgba(92, 58, 33, 0.35) !important;
  font-weight: 700 !important;
}

.cat-btn:hover:not(.active) {
  background: #F4EBE1 !important;
  color: #2B1E19 !important;
  border-color: #5C3A21 !important;
}

/* Action Header & Search Box */
.pos-action-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-bar-box {
  flex: 1;
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-sm);
}

.search-bar-box i {
  color: var(--text-muted);
}

.search-bar-box input {
  border: none;
  outline: none;
  width: 100%;
  font-family: var(--font-main);
  font-size: 0.95rem;
  background: transparent;
}

.btn-add-menu-main {
  background: linear-gradient(135deg, var(--accent-gold), var(--primary-light));
  color: var(--primary-milk);
  border: none;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-add-menu-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(224, 169, 109, 0.4);
}

.btn-add-menu-main:active {
  transform: scale(0.96);
}

/* Products Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 16px;
}

.product-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-gold);
}

.product-card:active {
  transform: scale(0.97);
}

.drink-icon {
  font-size: 3rem;
  margin-bottom: 8px;
  line-height: 1;
}

.drink-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-dark);
}

.drink-cat-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-cream);
  padding: 2px 8px;
  border-radius: 10px;
  margin-bottom: 8px;
}

.drink-price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-milk);
}

.product-card .btn-add-quick {
  margin-top: 10px;
  width: 100%;
  background: var(--bg-cream);
  border: 1px solid var(--accent-gold);
  color: var(--primary-milk);
  padding: 6px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.product-card:hover .btn-add-quick {
  background: var(--accent-gold);
  color: var(--primary-milk);
}

/* POS Cart Section (Right Panel) */
.pos-cart-section {
  background: var(--bg-card);
  border-left: 1.5px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.cart-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #FAF6F0;
}

.cart-header h3 {
  font-size: 1.1rem;
  color: var(--primary-milk);
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-clear-cart {
  background: transparent;
  border: none;
  color: var(--danger-red);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--font-main);
}

.cart-items-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cart-empty {
  text-align: center;
  color: var(--text-muted);
  margin: auto;
  padding: 30px;
}

.cart-empty i {
  font-size: 3rem;
  opacity: 0.4;
  margin-bottom: 10px;
}

.cart-item {
  background: var(--bg-cream);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.cart-item-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.cart-item-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.cart-item-price {
  font-weight: 700;
  color: var(--primary-milk);
}

.cart-item-details {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.cart-item-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
}

.qty-btn-group {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #FFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  padding: 2px 8px;
}

.qty-btn-group button {
  background: transparent;
  border: none;
  color: var(--primary-milk);
  font-weight: 700;
  width: 24px;
  height: 24px;
  cursor: pointer;
  font-size: 0.9rem;
}

.cart-item-remove {
  background: transparent;
  border: none;
  color: var(--danger-red);
  cursor: pointer;
  font-size: 0.85rem;
}

/* Cart Footer & Checkout Button */
.cart-footer {
  padding: 16px 20px;
  border-top: 1.5px solid var(--border-color);
  background: #FAF6F0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cart-summary-line {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}

.cart-summary-line.total-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-milk);
}

.payment-method-selector label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 4px;
  display: block;
}

.pay-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.pay-btn {
  background: #FFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px;
  font-family: var(--font-main);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s;
}

.pay-btn.active {
  border-color: var(--primary-milk);
  background: var(--primary-milk);
  color: #FFF;
  font-weight: 600;
}

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

.btn-add-more-items {
  background: var(--bg-cream);
  color: var(--primary-milk);
  border: 1px solid var(--border-color);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s ease;
}

.btn-add-more-items:hover {
  background: var(--primary-milk);
  color: #FFFFFF;
}

.cart-action-buttons {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 10px;
  margin-top: 4px;
}

.btn-select-more {
  background: #FFFFFF;
  color: var(--primary-milk);
  border: 2px solid var(--primary-milk);
  padding: 12px 10px;
  border-radius: var(--radius-md);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.btn-select-more:hover {
  background: var(--primary-milk);
  color: #FFFFFF;
}

.btn-select-product-empty {
  margin-top: 14px;
  padding: 10px 20px;
  font-size: 0.9rem;
  border-radius: var(--radius-pill);
}

.btn-checkout {
  background: linear-gradient(135deg, var(--accent-gold), var(--primary-light));
  color: var(--primary-milk);
  border: none;
  padding: 14px;
  border-radius: var(--radius-md);
  font-family: var(--font-main);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(224, 169, 109, 0.4);
  transition: all 0.2s;
}

.btn-checkout:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(224, 169, 109, 0.6);
}

/* --------------------------------------------------------------------------
   GENERAL PAGE CONTAINER & CARDS
   -------------------------------------------------------------------------- */
.page-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.page-header h2 {
  font-size: 1.5rem;
  color: var(--primary-milk);
  display: flex;
  align-items: center;
  gap: 10px;
}

.subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Buttons */
.btn-primary {
  background: var(--primary-milk);
  color: #FFFFFF;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-family: var(--font-main);
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #FFF;
  border: 1.5px solid var(--border-color);
  color: var(--text-dark);
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  font-family: var(--font-main);
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.btn-secondary:hover {
  background: var(--bg-cream);
  border-color: var(--accent-gold);
}

.btn-danger {
  background: var(--danger-red);
  color: #FFF;
  border: none;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  font-family: var(--font-main);
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-success {
  background: var(--success-green);
  color: #FFF;
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-small {
  padding: 6px 12px;
  font-size: 0.82rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
  background: #FFF;
  cursor: pointer;
  font-family: var(--font-main);
}

/* --------------------------------------------------------------------------
   DASHBOARD & STATS CARDS
   -------------------------------------------------------------------------- */
.dashboard-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dashboard-controls select {
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--border-color);
  font-family: var(--font-main);
  font-size: 0.9rem;
  background: #FFF;
  outline: none;
}

.dashboard-metrics-grid, .stats-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.metric-card, .stat-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.metric-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.metric-icon, .stat-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.gold .metric-icon { background: #FFF3E0; color: #E65100; }
.green .metric-icon, .income .stat-icon { background: var(--success-light); color: var(--success-green); }
.purple .metric-icon { background: var(--purple-light); color: var(--purple-accent); }
.red .metric-icon, .expense .stat-icon { background: var(--danger-light); color: var(--danger-red); }
.net .stat-icon { background: #E3F2FD; color: #1565C0; }

.metric-body, .stat-info {
  display: flex;
  flex-direction: column;
}

.metric-title, .stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

.metric-body h2, .stat-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.2;
}

.metric-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 20px;
}

.chart-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chart-header h3 {
  font-size: 1.05rem;
  color: var(--primary-milk);
  display: flex;
  align-items: center;
  gap: 8px;
}

.chart-container {
  position: relative;
  height: 260px;
  width: 100%;
}

/* --------------------------------------------------------------------------
   TABLES (EXPENSE LOG & MENU SETTINGS)
   -------------------------------------------------------------------------- */
.table-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.data-table th {
  background: #FAF6F0;
  color: var(--primary-milk);
  padding: 12px 14px;
  font-weight: 600;
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.badge-income {
  background: var(--success-light);
  color: var(--success-green);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-expense {
  background: var(--danger-light);
  color: var(--danger-red);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   SETTINGS & PIN SECURITY
   -------------------------------------------------------------------------- */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 20px;
}

.settings-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.card-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pin-settings-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-group input, .form-group select {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color);
  font-family: var(--font-main);
  font-size: 0.95rem;
  outline: none;
}

.divider {
  border: 0;
  height: 1px;
  background: var(--border-color);
  margin: 10px 0;
}

.danger-zone {
  background: var(--danger-light);
  border: 1px solid rgba(211, 47, 47, 0.2);
  border-radius: var(--radius-md);
  padding: 16px;
}

.danger-zone h4 {
  color: var(--danger-red);
  margin-bottom: 4px;
}

.danger-zone p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.danger-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   MODALS SYSTEM
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(43, 30, 25, 0.65);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}

.modal-overlay.active {
  display: flex;
}

.modal-box {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 90vh;
}

.modal-header {
  padding: 16px 20px;
  background: #FAF6F0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 1.15rem;
  color: var(--primary-milk);
}

.btn-close {
  background: transparent;
  border: none;
  font-size: 1.8rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-footer {
  padding: 16px 20px;
  background: #FAF6F0;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
}

/* Customize Drink Modal Options */
.option-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.option-group label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-milk);
}

.option-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill-btn {
  background: var(--bg-cream);
  border: 1.5px solid var(--border-color);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-main);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.pill-btn.active {
  background: var(--accent-gold);
  color: var(--primary-milk);
  border-color: var(--accent-gold);
  font-weight: 600;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.check-item {
  background: var(--bg-cream);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.85rem;
}

.check-item.selected {
  border-color: var(--primary-milk);
  background: #F4EBE1;
  font-weight: 600;
}

.qty-control {
  display: flex;
  align-items: center;
  gap: 14px;

}

.qty-control button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--primary-milk);
  background: #FFF;
  color: var(--primary-milk);
  font-size: 1rem;
  cursor: pointer;
}

.modal-price-calc {
  margin-right: auto;
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
}

.modal-price-calc strong {
  font-size: 1.25rem;
  color: var(--primary-milk);
}

/* --------------------------------------------------------------------------
   AUTH / PIN LOCK MODAL SCREEN
   -------------------------------------------------------------------------- */
.auth-overlay {
  z-index: 2000;
  background: linear-gradient(135deg, rgba(43, 30, 25, 0.9), rgba(92, 58, 33, 0.92));
}

.auth-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 380px;
  padding: 30px 24px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.auth-logo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: contain;
  margin-bottom: 8px;
}

.auth-header h2 {
  font-size: 1.4rem;
  color: var(--primary-milk);
}

.auth-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.role-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.role-btn {
  background: var(--bg-cream);
  border: 1.5px solid var(--border-color);
  padding: 10px;
  border-radius: var(--radius-md);
  font-family: var(--font-main);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.role-btn.active {
  background: var(--primary-milk);
  color: #FFF;
  border-color: var(--primary-milk);
  font-weight: 600;
}

.pin-display-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.role-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pin-dots {
  display: flex;
  gap: 12px;
}

.pin-dots .dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--primary-milk);
  transition: all 0.2s;
}

.pin-dots .dot.filled {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  transform: scale(1.15);
}

.auth-error-msg {
  color: var(--danger-red);
  font-size: 0.82rem;
  min-height: 20px;

}

.pin-keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.pin-keypad button {
  height: 52px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color);
  background: var(--bg-cream);
  font-family: var(--font-main);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary-milk);
  cursor: pointer;
  transition: all 0.15s;
}

.pin-keypad button:active {
  background: var(--accent-gold);
  transform: scale(0.95);
}

.pin-keypad .btn-clear { background: #FFEBEE; color: var(--danger-red); }
.pin-keypad .btn-submit { background: var(--primary-milk); color: #FFF; }

/* Checkout Cash Box */
.checkout-summary-box {
  background: var(--bg-cream);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sum-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sum-row h2 {
  font-size: 1.8rem;
  color: var(--primary-milk);
}

.large-input {
  font-size: 1.6rem;
  font-weight: 700;
  text-align: right;
  padding: 12px;
  border-radius: var(--radius-md);
  border: 2px solid var(--primary-milk);
  width: 100%;
}

.quick-cash-buttons {
  display: flex;
  gap: 8px;
  margin: 10px 0;
  flex-wrap: wrap;
}

.quick-cash-buttons button {
  flex: 1;
  padding: 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-cream);
  font-weight: 600;
  cursor: pointer;
}

.change-display {
  display: flex;
  justify-content: space-between;
  font-size: 1.1rem;
  background: #E8F5E9;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--success-green);
}

/* Digital Receipt Paper */
.receipt-paper {
  background: #FFF;
  padding: 24px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.88rem;
  color: #000;
  border: 1px dashed #CCC;
}

.receipt-header {
  text-align: center;
}

.receipt-logo {
  width: 50px;
  height: 50px;

}

.receipt-divider {
  text-align: center;
  margin: 6px 0;
}

.rec-item-row {
  display: flex;
  justify-content: space-between;
  margin: 4px 0;
}

.rec-item-detail {
  font-size: 0.75rem;
  color: #555;
  padding-left: 10px;
}

.rec-row {
  display: flex;
  justify-content: space-between;
  margin: 4px 0;
}

.thank-you {
  text-align: center;
  margin-top: 12px;
  font-weight: bold;
}

/* Animations */
.animate-fade-in {
  animation: fadeIn 0.3s ease;
}

.animate-pop {
  animation: popIn 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.hide { display: none !important; }

/* --------------------------------------------------------------------------
   RESPONSIVE DESIGN FOR MOBILE & TABLETS (ทำให้สามารถใช้บนโทรศัพท์ได้)
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .pos-layout {
    grid-template-columns: 1fr;
    height: auto;
    overflow: visible;
  }

  .pos-cart-section {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100vw;
    height: auto;
    max-height: 80vh;
    z-index: 500;
    box-shadow: 0 -8px 24px rgba(0,0,0,0.2);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    transform: translateY(calc(100% - 70px));
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .pos-cart-section.expanded {
    transform: translateY(0);
  }

  .cart-header {
    cursor: pointer;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .charts-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .app-header {
    padding: 10px 12px;
    flex-direction: column;
    align-items: stretch;
  }

  .brand-info {
    justify-content: space-between;
  }

  .nav-tabs {
    overflow-x: auto;
    padding: 4px;
    justify-content: flex-start;
  }

  .nav-btn {
    padding: 8px 12px;
    font-size: 0.82rem;
  }

  .user-bar {
    justify-content: space-between;
    width: 100%;
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .product-card {
    padding: 12px 8px;
  }

  .drink-icon {
    font-size: 2.2rem;
  }

  .drink-title {
    font-size: 0.85rem;
  }

  .dashboard-metrics-grid, .stats-cards-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .metric-card, .stat-card {
    padding: 14px 10px;
    gap: 10px;
  }

  .metric-icon, .stat-icon {
    width: 42px;
    height: 42px;
    font-size: 1.2rem;
  }

  .metric-body h2, .stat-info h3 {
    font-size: 1.15rem;
  }

  .chart-container {
    height: 220px;
  }

  .quick-cash-buttons button {
    font-size: 0.8rem;
    padding: 6px;
  }
}

/* Emoji Picker Palette Grid */
.emoji-picker-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
  background: var(--bg-cream);
  padding: 10px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  max-height: 120px;
  overflow-y: auto;
}

.emoji-opt-btn {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1.4rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.emoji-opt-btn:hover {
  background: var(--accent-gold);
  transform: scale(1.15);
  border-color: var(--primary-milk);
}