/* Dream Blanks POS System - Main Stylesheet
   Design: Minimalist Gray & White Professional Theme */

:root {
  --color-white: #FFFFFF;
  --color-light-gray: #F5F5F5;
  --color-gray-100: #E8E8E8;
  --color-gray-300: #D0D0D0;
  --color-gray-500: #808080;
  --color-gray-700: #505050;
  --color-dark-gray: #2D2D2D;
  --color-black: #000000;

  --color-primary: #0056B3;
  --color-primary-light: #E6F0FF;
  --color-primary-dark: #003d7a;
  --color-success: #28A745;
  --color-success-light: #d4edda;
  --color-warning: #FFC107;
  --color-warning-light: #fff3cd;
  --color-danger: #DC3545;
  --color-danger-light: #f8d7da;
  --color-info: #17A2B8;
  --color-info-light: #d1ecf1;

  --bg-primary: #FFFFFF;
  --bg-secondary: #F5F5F5;
  --bg-tertiary: #E8E8E8;

  --sidebar-width: 260px;
  --sidebar-collapsed: 60px;
  --header-height: 64px;
  --border-radius: 6px;
  --border-radius-sm: 4px;
  --border-radius-lg: 10px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow: 0 2px 8px rgba(0,0,0,0.12);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.15);
  --transition: all 0.25s ease;
  --font-family: 'Segoe UI', Arial, Helvetica, sans-serif;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  color: var(--color-dark-gray);
  background: var(--bg-secondary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

h1 { font-size: 2rem; font-weight: 700; }
h2 { font-size: 1.5rem; font-weight: 600; }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }
h5 { font-size: 1rem; font-weight: 600; }
h6 { font-size: 0.875rem; font-weight: 600; }

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

/* Mobile Sidebar Overlay */
.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  z-index: 1000;
  transition: opacity 0.25s ease;
  display: none;
}

@media (max-width: 768px) {
  .sidebar-overlay { display: block; }
  .app-wrapper.sidebar-mobile-open .sidebar-overlay {
    opacity: 1;
  }
}

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-primary);
  border-right: 1px solid var(--color-gray-100);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 1001;
  transition: var(--transition);
  overflow: hidden;
}
.sidebar.collapsed { width: var(--sidebar-collapsed); }

.sidebar-brand {
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 20px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-gray-100);
  white-space: nowrap;
  overflow: hidden;
}
.sidebar-brand .brand-icon { font-size: 1.4rem; margin-right: 12px; flex-shrink: 0; }

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

@media (max-width: 768px) {
  .sidebar {
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .sidebar-brand {
    flex-shrink: 0;
  }

  .nav-menu {
    overflow-y: visible;
    max-height: none;
    padding-bottom: 24px;
  }

  .nav-section-label {
    position: sticky;
    top: 0;
    background: var(--bg-primary);
    z-index: 1;
  }
}

.nav-section-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gray-500);
  padding: 12px 20px 4px;
  white-space: nowrap;
  overflow: hidden;
}
.sidebar.collapsed .nav-section-label { display: none; }

.nav-link {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  color: var(--color-gray-700);
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  transition: var(--transition);
  border-radius: 0;
  gap: 12px;
}
.nav-link:hover, .nav-link.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  text-decoration: none;
}
.nav-link.active { border-right: 3px solid var(--color-primary); }
.nav-link .nav-icon { flex-shrink: 0; width: 20px; display: flex; align-items: center; justify-content: center; }
.nav-link .nav-label { transition: var(--transition); }
.sidebar.collapsed .nav-label { display: none; }

/* Collapsed sidebar — icon tooltips */
.sidebar.collapsed { overflow: visible; }
.sidebar.collapsed .nav-menu { overflow: visible; }
.sidebar.collapsed .nav-link {
  justify-content: center;
  position: relative;
  overflow: visible;
}
.sidebar.collapsed .nav-label {
  display: block;
  position: absolute;
  left: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(-6px);
  background: var(--color-dark-gray);
  color: #fff;
  padding: 5px 10px;
  border-radius: var(--border-radius-sm);
  font-size: 0.78rem;
  font-weight: 500;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 1200;
  box-shadow: var(--shadow);
}
.sidebar.collapsed .nav-label::before {
  content: '';
  position: absolute;
  right: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-right-color: var(--color-dark-gray);
}
.sidebar.collapsed .nav-link:hover .nav-label {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

/* ===== TOPBAR ===== */
.topbar {
  height: var(--header-height);
  background: var(--bg-primary);
  border-bottom: 1px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  padding: 0 24px;
  position: fixed;
  top: 0;
  left: var(--sidebar-width);
  right: 0;
  z-index: 1000;
  gap: 16px;
  transition: var(--transition);
}
.topbar.sidebar-collapsed { left: var(--sidebar-collapsed); }

.topbar-left { display: flex; align-items: center; gap: 12px; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

.sidebar-toggle {
  background: none; border: none; cursor: pointer;
  color: var(--color-gray-700); font-size: 1.2rem; padding: 6px;
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
}
.sidebar-toggle:hover { background: var(--bg-secondary); }

.page-title { font-size: 1.1rem; font-weight: 600; color: var(--color-dark-gray); }

.notification-btn {
  position: relative; background: none; border: none;
  cursor: pointer; padding: 6px; font-size: 1.2rem;
  color: var(--color-gray-700); border-radius: var(--border-radius-sm);
  transition: var(--transition);
}
.notification-btn:hover { background: var(--bg-secondary); }
.notification-btn .badge {
  position: absolute; top: 0; right: 0;
  background: var(--color-danger); color: white;
  font-size: 0.65rem; font-weight: 700; line-height: 1;
  min-width: 18px; height: 18px; padding: 0 4px;
  border-radius: 9px; display: flex; align-items: center; justify-content: center;
}

.user-menu { position: relative; cursor: pointer; }
.user-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--color-primary); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.875rem; font-weight: 600;
}
.user-dropdown {
  position: absolute; top: 100%; right: 0; margin-top: 8px;
  background: white; border: 1px solid var(--color-gray-100);
  border-radius: var(--border-radius); box-shadow: var(--shadow-lg);
  min-width: 180px; display: none; z-index: 2000;
}
.user-dropdown.show { display: block; }
.user-dropdown a {
  display: block; padding: 10px 16px; color: var(--color-dark-gray);
  font-size: 0.875rem; transition: var(--transition);
}
.user-dropdown a:hover { background: var(--bg-secondary); text-decoration: none; }
.user-dropdown hr { border: none; border-top: 1px solid var(--color-gray-100); margin: 4px 0; }

/* ===== MAIN CONTENT ===== */
.main-content {
  margin-left: var(--sidebar-width);
  margin-top: var(--header-height);
  padding: 24px;
  min-height: calc(100vh - var(--header-height));
  transition: var(--transition);
  flex: 1;
}
.main-content.sidebar-collapsed { margin-left: var(--sidebar-collapsed); }

.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px;
}
.page-header h1 { font-size: 1.5rem; }

/* ===== CARDS ===== */
.card {
  background: var(--bg-primary);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-gray-100);
  display: flex; align-items: center; justify-content: space-between;
}
.card-title { font-size: 1rem; font-weight: 600; margin: 0; }
.card-body { padding: 20px; }
.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--color-gray-100);
  background: var(--bg-secondary);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
}

/* Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stats-card {
  background: var(--bg-primary);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.stats-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.stats-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.stats-label { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-gray-500); }
.stats-icon { display: flex; align-items: center; color: var(--color-gray-500); }
.stats-value { font-size: 1.8rem; font-weight: 700; color: var(--color-dark-gray); margin-bottom: 4px; }
.stats-change { font-size: 0.8rem; }
.stats-change.positive { color: var(--color-success); }
.stats-change.negative { color: var(--color-danger); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 18px;
  font-size: 0.875rem; font-weight: 600;
  border: 1px solid transparent; border-radius: var(--border-radius-sm);
  cursor: pointer; transition: var(--transition);
  text-decoration: none; white-space: nowrap;
  line-height: 1.4;
}
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-sm  { padding: 5px 12px; font-size: 0.8rem; }
.btn-lg  { padding: 12px 24px; font-size: 1rem; }
.btn-block { display: flex; width: 100%; justify-content: center; }

.btn-primary   { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-dark); text-decoration: none; color: white; }
.btn-secondary { background: white; color: var(--color-gray-700); border-color: var(--color-gray-300); }
.btn-secondary:hover { background: var(--bg-secondary); text-decoration: none; }
.btn-success   { background: var(--color-success); color: white; border-color: var(--color-success); }
.btn-success:hover { background: #1e7e34; text-decoration: none; color: white; }
.btn-danger    { background: var(--color-danger); color: white; border-color: var(--color-danger); }
.btn-danger:hover { background: #b02a37; text-decoration: none; color: white; }
.btn-warning   { background: var(--color-warning); color: var(--color-dark-gray); border-color: var(--color-warning); }
.btn-info      { background: var(--color-info); color: white; border-color: var(--color-info); }
.btn-ghost     { background: transparent; color: var(--color-primary); border-color: transparent; }
.btn-ghost:hover { background: var(--color-primary-light); text-decoration: none; }

.icon-btn {
  background: none; border: none; cursor: pointer; padding: 6px;
  border-radius: var(--border-radius-sm); transition: var(--transition);
  color: var(--color-gray-700); font-size: 0.875rem; display: inline-flex; align-items: center; gap: 4px;
}
.icon-btn:hover { background: var(--bg-secondary); }
.icon-btn.danger:hover { color: var(--color-danger); }

/* ===== FORMS ===== */
.form-group { margin-bottom: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

.form-label {
  display: block; font-size: 0.875rem; font-weight: 600;
  margin-bottom: 6px; color: var(--color-gray-700);
}
.form-label .required { color: var(--color-danger); margin-left: 2px; }

.form-input, .form-select, .form-textarea {
  width: 100%; height: 40px; padding: 8px 12px;
  font-size: 0.9rem; font-family: var(--font-family);
  border: 1px solid var(--color-gray-300); border-radius: var(--border-radius-sm);
  color: var(--color-dark-gray); background: white;
  transition: var(--transition); outline: none;
}
.form-textarea { height: auto; min-height: 100px; resize: vertical; }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(0,86,179,0.12);
}
.form-input:disabled, .form-select:disabled { background: var(--bg-secondary); cursor: not-allowed; }
.form-input.is-invalid, .form-select.is-invalid { border-color: var(--color-danger); }
.form-input.is-valid { border-color: var(--color-success); }
.form-error { font-size: 0.8rem; color: var(--color-danger); margin-top: 4px; display: block; }
.form-hint  { font-size: 0.8rem; color: var(--color-gray-500); margin-top: 4px; display: block; }

.form-check { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.form-check-input { width: 16px; height: 16px; cursor: pointer; accent-color: var(--color-primary); }
.form-check-label { font-size: 0.875rem; cursor: pointer; }

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

.data-table {
  width: 100%; border-collapse: collapse; font-size: 0.875rem;
}
.data-table th {
  background: var(--bg-secondary); padding: 12px 16px;
  text-align: left; font-size: 0.8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--color-gray-500); white-space: nowrap;
  border-bottom: 2px solid var(--color-gray-100);
}
.data-table th.sortable { cursor: pointer; user-select: none; }
.data-table th.sortable:hover { color: var(--color-primary); }
.data-table td {
  padding: 12px 16px; border-bottom: 1px solid var(--color-gray-100);
  vertical-align: middle; color: var(--color-dark-gray);
}
.data-table tr:hover td { background: var(--color-primary-light); }
.data-table tr:last-child td { border-bottom: none; }

/* Pagination */
.pagination {
  display: flex; align-items: center; gap: 4px; justify-content: center;
  padding: 16px;
}
.page-link {
  padding: 6px 12px; font-size: 0.875rem;
  border: 1px solid var(--color-gray-300); border-radius: var(--border-radius-sm);
  color: var(--color-gray-700); background: white; cursor: pointer;
  transition: var(--transition);
}
.page-link:hover { background: var(--color-primary-light); border-color: var(--color-primary); color: var(--color-primary); }
.page-link.active { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.page-link:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== BADGES ===== */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: 20px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.03em;
  text-transform: uppercase; white-space: nowrap;
}
.badge-success   { background: var(--color-success-light); color: var(--color-success); }
.badge-danger    { background: var(--color-danger-light);  color: var(--color-danger); }
.badge-warning   { background: var(--color-warning-light); color: #856404; }
.badge-info      { background: var(--color-info-light);    color: var(--color-info); }
.badge-primary   { background: var(--color-primary-light); color: var(--color-primary); }
.badge-gray      { background: var(--color-gray-100); color: var(--color-gray-700); }
.badge-secondary { background: #e2e8f0; color: #475569; }
.badge-purple    { background: #f3e8ff; color: #7c3aed; }
.badge-orange    { background: #fff7ed; color: #c2410c; }
.badge-teal      { background: #ccfbf1; color: #0f766e; }

/* ===== MODALS ===== */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000; display: flex;
  align-items: center; justify-content: center;
  padding: 20px;
  opacity: 0; visibility: hidden; transition: var(--transition);
}
.modal-overlay.show { opacity: 1; visibility: visible; }
.modal-content {
  background: white; border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg); width: 100%; max-width: 560px;
  max-height: 90vh; overflow-y: auto;
  transform: scale(0.9); transition: var(--transition);
}
.modal-overlay.show .modal-content { transform: scale(1); }
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; border-bottom: 1px solid var(--color-gray-100);
}
.modal-title { font-size: 1.1rem; font-weight: 600; }
.modal-close {
  background: none; border: none; cursor: pointer; padding: 4px;
  font-size: 1.2rem; color: var(--color-gray-500); border-radius: var(--border-radius-sm);
  transition: var(--transition);
}
.modal-close:hover { background: var(--bg-secondary); }
.modal-body   { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--color-gray-100); display: flex; gap: 8px; justify-content: flex-end; }

/* ===== TOASTS ===== */
.toast-container {
  position: fixed; top: 24px; right: 24px;
  z-index: 9999; display: flex; flex-direction: column; gap: 8px;
}
.toast {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg); min-width: 300px; max-width: 400px;
  animation: slideInRight 0.3s ease;
  color: white; font-size: 0.875rem; font-weight: 500;
}
.toast-success { background: var(--color-success); }
.toast-error   { background: var(--color-danger); }
.toast-warning { background: var(--color-warning); color: var(--color-dark-gray); }
.toast-info    { background: var(--color-primary); }
.toast-close { margin-left: auto; background: none; border: none; cursor: pointer; color: inherit; font-size: 1rem; opacity: 0.8; }
.toast-close:hover { opacity: 1; }

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* ===== ALERTS ===== */
.alert {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 16px; border-radius: var(--border-radius);
  margin-bottom: 16px; font-size: 0.875rem;
}
.alert-success { background: var(--color-success-light); color: #155724; border-left: 4px solid var(--color-success); }
.alert-danger  { background: var(--color-danger-light);  color: #721c24; border-left: 4px solid var(--color-danger); }
.alert-warning { background: var(--color-warning-light); color: #856404; border-left: 4px solid var(--color-warning); }
.alert-info    { background: var(--color-info-light);    color: #0c5460; border-left: 4px solid var(--color-info); }

/* ===== LOGIN PAGE ===== */
.auth-page {
  min-height: 100vh; display: flex;
  align-items: center; justify-content: center;
  background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
  padding: 20px;
}
.auth-card {
  background: white; border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg); padding: 40px; width: 100%; max-width: 420px;
}
.auth-logo { text-align: center; margin-bottom: 32px; }
.auth-logo h1 { font-size: 1.8rem; color: var(--color-primary); }
.auth-logo p { color: var(--color-gray-500); font-size: 0.9rem; margin-top: 4px; }

/* ===== SEARCH BAR ===== */
.search-bar {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-secondary); border: 1px solid var(--color-gray-100);
  border-radius: var(--border-radius-sm); padding: 6px 12px;
}
.search-bar input {
  border: none; background: none; outline: none;
  font-size: 0.875rem; color: var(--color-dark-gray); width: 200px;
}

/* ===== FILTER BAR ===== */
.filter-bar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin-bottom: 16px;
}

/* ===== POS LAYOUT ===== */
.pos-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 20px;
  height: calc(100vh - var(--header-height) - 48px);
}
.pos-products { overflow-y: auto; }
.pos-cart { display: flex; flex-direction: column; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  padding-bottom: 16px;
}
.product-card {
  background: white; border: 1px solid var(--color-gray-100);
  border-radius: var(--border-radius); padding: 12px; cursor: pointer;
  transition: var(--transition); text-align: center;
}
.product-card:hover { box-shadow: var(--shadow); border-color: var(--color-primary); transform: translateY(-2px); }
.product-card img { width: 80px; height: 80px; object-fit: cover; border-radius: var(--border-radius-sm); margin-bottom: 8px; }
.product-card .product-name { font-size: 0.875rem; font-weight: 600; margin-bottom: 4px; }
.product-card .product-price { font-size: 0.95rem; font-weight: 700; color: var(--color-primary); }
.product-card .product-stock { font-size: 0.75rem; color: var(--color-gray-500); margin-top: 4px; }
.product-card.out-of-stock { opacity: 0.5; cursor: not-allowed; }

/* Cart */
.cart-header { padding: 12px 16px; border-bottom: 1px solid var(--color-gray-100); font-weight: 600; }
.cart-items { flex: 1; overflow-y: auto; padding: 12px; }
.cart-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px; margin-bottom: 8px;
  background: var(--bg-secondary); border-radius: var(--border-radius-sm);
}
.cart-item-info { flex: 1; }
.cart-item-name { font-size: 0.875rem; font-weight: 600; }
.cart-item-price { font-size: 0.8rem; color: var(--color-gray-500); }
.cart-item-qty { display: flex; align-items: center; gap: 6px; }
.qty-btn {
  width: 26px; height: 26px; border: 1px solid var(--color-gray-300);
  background: white; border-radius: var(--border-radius-sm);
  cursor: pointer; font-size: 1rem; display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.qty-btn:hover { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.qty-input {
  width: 36px; text-align: center; border: 1px solid var(--color-gray-300);
  border-radius: var(--border-radius-sm); padding: 2px 4px; font-size: 0.875rem;
}
.cart-item-total { font-weight: 700; color: var(--color-dark-gray); font-size: 0.9rem; }
.cart-remove { background: none; border: none; color: var(--color-danger); cursor: pointer; padding: 4px; font-size: 1rem; }

.cart-summary {
  padding: 16px; border-top: 1px solid var(--color-gray-100);
  background: white;
}
.summary-row { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 0.875rem; }
.summary-row.total { font-size: 1.1rem; font-weight: 700; padding-top: 8px; border-top: 2px solid var(--color-gray-100); margin-top: 4px; }

/* ===== PRINT STYLES ===== */
@media print {
  .sidebar, .topbar, .no-print { display: none !important; }
  .main-content { margin: 0 !important; padding: 0 !important; }
  .invoice-print { max-width: 100%; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .sidebar-overlay { display: block; z-index: 1000; }
  .app-wrapper.sidebar-mobile-open .sidebar-overlay,
  body.sidebar-mobile-open .sidebar-overlay {
    opacity: 1;
  }
  
  .sidebar {
    transform: translateX(-100%) !important;
    position: fixed;
    width: var(--sidebar-width);
    height: 100dvh;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    z-index: 1002;
  }
  .sidebar.mobile-open,
  body.sidebar-mobile-open .sidebar,
  .app-wrapper.sidebar-mobile-open .sidebar {
    transform: translateX(0) !important;
  }
  .sidebar.collapsed { width: var(--sidebar-width); }
  .sidebar.collapsed .nav-label { display: none; }
  .sidebar-brand { flex-shrink: 0; }
  .nav-menu {
    overflow: visible;
    max-height: none;
    padding-bottom: 24px;
  }
  .nav-menu::-webkit-scrollbar { width: 6px; }
  .nav-menu::-webkit-scrollbar-thumb { background: var(--color-gray-300); border-radius: 999px; }
  
  .topbar { left: 0; }
  .main-content { margin-left: 0; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .pos-layout { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .main-content { padding: 16px; }
  .stats-grid { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ===== UTILITIES ===== */
.text-center  { text-align: center; }
.text-right   { text-align: right; }
.text-muted   { color: var(--color-gray-500); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-danger  { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.font-bold    { font-weight: 700; }
.font-semibold{ font-weight: 600; }
.d-flex       { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mt-8   { margin-top: 8px; }
.mt-16  { margin-top: 16px; }
.mt-24  { margin-top: 24px; }
.mb-8   { margin-bottom: 8px; }
.mb-16  { margin-bottom: 16px; }
.mb-24  { margin-bottom: 24px; }
.p-16   { padding: 16px; }
.p-24   { padding: 24px; }
.w-100  { width: 100%; }
.hidden { display: none; }
.loading { opacity: 0.6; pointer-events: none; }
.spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white; border-radius: 50%;
  animation: spin 0.7s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Empty state */
.empty-state {
  text-align: center; padding: 48px 24px; color: var(--color-gray-500);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state h3 { color: var(--color-gray-700); margin-bottom: 6px; }

/* ===== SVG ICON FIXES ===== */
.nav-link .nav-icon svg { display: block; }
.stats-icon svg { display: block; }

/* ===== VARIATION LIST (used in /variations and /roles) ===== */
.variation-list { list-style: none; margin: 0; padding: 0; }
.variation-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--color-gray-100);
  transition: var(--transition);
}
.variation-item:last-child { border-bottom: none; }
.variation-item:hover { background: var(--bg-secondary); }
.variation-item.selected { background: var(--color-primary-light); border-right: 3px solid var(--color-primary); }
.variation-info { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.variation-name { font-size: 0.875rem; font-weight: 600; color: var(--color-dark-gray); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.variation-meta { font-size: 0.75rem; color: var(--color-gray-500); }
.empty-list-msg { padding: 24px; text-align: center; color: var(--color-gray-500); font-size: 0.875rem; }

/* Color dot preview */
.color-dot {
  width: 20px; height: 20px; border-radius: 50%;
  border: 2px solid var(--color-gray-300); flex-shrink: 0;
  display: inline-block;
}

/* ===== PERMISSIONS MATRIX (roles page) ===== */
.perm-matrix { display: flex; flex-direction: column; gap: 16px; }
.perm-module {
  border: 1px solid var(--color-gray-100);
  border-radius: var(--border-radius);
  overflow: hidden;
}
.perm-module-name {
  background: var(--bg-secondary);
  padding: 8px 14px;
  font-size: 0.8rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-100);
}
.perm-actions { display: flex; flex-wrap: wrap; gap: 4px; padding: 12px 14px; }
.perm-checkbox {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--color-gray-200, #e0e0e0);
  border-radius: 20px;
  font-size: 0.8rem; cursor: pointer;
  transition: var(--transition);
  user-select: none;
}
.perm-checkbox:hover { border-color: var(--color-primary); color: var(--color-primary); }
.perm-checkbox input[type=checkbox] { accent-color: var(--color-primary); width: 14px; height: 14px; cursor: pointer; }
.perm-checkbox input[type=checkbox]:checked + span { color: var(--color-primary); font-weight: 600; }

/* ===== DASHBOARD QUICK ACTIONS ===== */
.quick-action-card {
  background: white; border: 1px solid var(--color-gray-100);
  border-radius: var(--border-radius); padding: 20px;
  text-align: center; text-decoration: none; color: var(--color-dark-gray);
  transition: var(--transition); display: flex; flex-direction: column;
  align-items: center; gap: 10px;
}
.quick-action-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); text-decoration: none; color: var(--color-dark-gray); }
.quick-action-icon { display: flex; align-items: center; justify-content: center; }

/* ===== MISC UTILITY ===== */
.gap-4 { gap: 4px; }