@import url('https://fonts.googleapis.com/css2?family=Mitr:wght@300;400;500;600&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  /* Design Tokens */
  --font-family: 'Plus Jakarta Sans', 'Mitr', sans-serif;
  
  /* Color Palette (Aesthetic HSL) */
  --bg-primary: #0b0f19;
  --bg-secondary: #131c31;
  --bg-tertiary: #1b2640;
  --bg-card: rgba(19, 28, 49, 0.75);
  
  --accent-primary: #6366f1; /* Indigo */
  --accent-secondary: #06b6d4; /* Cyan */
  --accent-gradient: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.4);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme overrides if needed, but we default to a stunning dark dashboard style */
.light-theme {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-color: rgba(0, 0, 0, 0.06);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
  transition: background-color var(--transition-normal);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

/* Application Shell Layout */
#app-root {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 280px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 24px;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.main-content {
  flex: 1;
  margin-left: 280px;
  padding: 40px;
  min-width: 0; /* Prevents flex children from breaking grid */
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 0.5em;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Glassmorphism Card Component */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.glass-card.hoverable:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99, 102, 241, 0.25);
}

/* Button UI Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
}
.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover {
  opacity: 0.95;
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
  transform: translateY(-1px);
}
.btn-secondary {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--text-secondary);
}
.btn-success {
  background: var(--success);
  color: white;
}
.btn-danger {
  background: var(--danger);
  color: white;
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Input Styles */
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--border-focus);
}

select option {
  background-color: #131c31 !important;
  color: #f8fafc !important;
}

/* Navigation List inside Sidebar */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
}
.nav-logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 20px;
  color: white;
}
.nav-logo-text {
  font-size: 20px;
  font-weight: 700;
}
.nav-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.nav-item-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: var(--font-family);
  font-size: 15px;
  text-align: left;
  transition: all var(--transition-fast);
}
.nav-item-btn:hover, .nav-item-btn.active {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
}
.nav-item-btn.active {
  border-left: 4px solid var(--accent-primary);
  background-color: rgba(99, 102, 241, 0.1);
  font-weight: 600;
}
.nav-footer {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

/* Badges */
.badge {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}
.badge-success { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.badge-info { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Mobile Header Bar */
.mobile-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 99;
}
.mobile-menu-btn {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

@media (max-width: 1024px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .sidebar { 
    transform: translateX(-100%); 
    transition: transform var(--transition-normal);
  }
  .sidebar.mobile-open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  .main-content { margin-left: 0; }
  .mobile-header {
    display: flex;
  }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .main-content { padding: 20px; }
}

/* Custom Table Components */
.table-wrapper {
  overflow-x: auto;
  margin-top: 16px;
}
.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.custom-table th {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 13px;
}
.custom-table td {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  font-size: 14px;
}
.custom-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.01);
}

/* Modal UI */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}
.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
.modal-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform var(--transition-fast);
}
.modal-overlay.active .modal-container {
  transform: scale(1);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}
.modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 24px;
}

/* Login UI Card */
.login-wrapper {
  min-height: 100vh;
  width: 100%;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top right, rgba(99, 102, 241, 0.15), transparent 40%),
              radial-gradient(circle at bottom left, rgba(6, 182, 212, 0.1), transparent 40%),
              var(--bg-primary);
  padding: 20px;
}
.login-card {
  width: 100%;
  max-width: 440px;
  padding: 40px;
  border-radius: var(--radius-lg);
}

/* Tab selector */
.tab-container {
  display: flex;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}
.tab-btn {
  padding: 12px 20px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-family: var(--font-family);
  font-weight: 500;
  transition: all var(--transition-fast);
}
.tab-btn.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

/* Shopping Cart UI */
.cart-drawer-toggle {
  position: relative;
}
.cart-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--accent-secondary);
  color: white;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

/* Screen-only styling for document previews */
@media screen {
  .print-page-wrapper {
    width: 100%;
    overflow-x: auto;
    padding: 12px;
    background: rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-sm);
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 20px;
    -webkit-overflow-scrolling: touch;
  }
  .print-document {
    min-width: 780px; /* Keep full A4 scale on screen to prevent squishing */
    margin: 0 auto !important;
  }
  /* Widen modal container on desktop when showing document previews */
  .modal-container:has(.print-page-wrapper) {
    max-width: 860px;
  }
  @media (max-width: 768px) {
    .modal-container {
      width: 95%;
      padding: 16px;
      max-height: 90vh;
    }
  }
}

/* Standard A4 Printing Layout Styles for Documents */
@media print {
  @page {
    size: A4;
    margin: 0;
  }
  body {
    background-color: white !important;
    color: black !important;
  }
  #app-root {
    display: none !important;
  }
  .modal-overlay {
    position: relative !important;
    background-color: transparent !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    display: block !important;
    backdrop-filter: none !important;
    z-index: auto !important;
  }
  .modal-container {
    background-color: transparent !important;
    border: none !important;
    width: 100% !important;
    max-width: none !important;
    max-height: none !important;
    overflow-y: visible !important;
    padding: 0 !important;
    box-shadow: none !important;
    transform: none !important;
  }
  .sidebar, .nav-logo, .nav-menu, .nav-footer, .btn, .modal-close, .modal-header, .cart-drawer-toggle, .no-print {
    display: none !important;
  }
  .main-content {
    margin-left: 0 !important;
    padding: 0 !important;
    display: none !important;
  }
  .print-document {
    background: white !important;
    color: black !important;
    border: none !important;
    box-shadow: none !important;
    padding: 20mm !important;
    width: 210mm !important;
    height: 297mm !important;
    margin: 0 !important;
    box-sizing: border-box !important;
    position: relative !important;
    overflow: hidden !important;
    page-break-after: always !important;
    break-after: page !important;
  }
  .print-document h1, .print-document h2, .print-document h3, .print-document h4, .print-document td, .print-document th {
    color: black !important;
  }
  .print-document table {
    border-color: #cbd5e1 !important;
  }
  .print-document th {
    background-color: #f8fafc !important;
    border-bottom: 2px solid #cbd5e1 !important;
  }
  .print-document td {
    border-bottom: 1px solid #cbd5e1 !important;
  }
  .badge {
    border: 1px solid #cbd5e1 !important;
    background: transparent !important;
    color: black !important;
  }
  .page-break {
    page-break-before: always !important;
    break-before: page !important;
    height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
  }
  .print-document-footer {
    position: absolute !important;
    bottom: 20mm !important;
    left: 20mm !important;
    right: 20mm !important;
    background: white !important;
  }
}