@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Sarabun:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --primary: #0d9488;
  --primary-hover: #0f766e;
  --primary-light: #ccfbf1;
  --bg-main: #f8fafc;
  --bg-sidebar: #0f172a;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #ffffff;
  --border: #e2e8f0;
  --accent: #10b981;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --warning: #f59e0b;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --font-family: 'Sarabun', 'Inter', -apple-system, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-theme {
  --bg-main: #0b0f19;
  --bg-card: #151e33;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border: #223049;
  --primary-light: rgba(13, 148, 136, 0.15);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  transition: var(--transition);
}

/* Scrollbar Styles */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Sidebar Navigation */
aside {
  width: 280px;
  background-color: var(--bg-sidebar);
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  padding: 24px;
  box-shadow: 4px 0 25px rgba(0, 0, 0, 0.15);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  font-weight: bold;
  box-shadow: 0 4px 10px rgba(13, 148, 136, 0.4);
}

.logo-text h1 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.logo-text p {
  font-size: 11px;
  color: var(--text-muted);
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
}

.nav-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: white;
}

.nav-item.active {
  background-color: var(--primary);
  color: white;
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.35);
}

.nav-item svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: white;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Main Content Area */
main {
  margin-left: 280px;
  flex-grow: 1;
  padding: 40px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  max-width: calc(100vw - 280px);
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.header-title h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
}

.header-title p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.fy-badge {
  background-color: var(--primary-light);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 13px;
  border: 1px solid rgba(13, 148, 136, 0.2);
}

/* Dashboard Grid Layout */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 30px;
}

.stat-card {
  background-color: var(--bg-card);
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary);
}

.stat-card.warning::after {
  background: var(--warning);
}

.stat-card.danger::after {
  background: var(--danger);
}

.stat-title {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-val {
  font-size: 28px;
  font-weight: 700;
  margin: 10px 0;
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
}

.stat-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* Two Column Layout */
.grid-2col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 30px;
}

.card {
  background-color: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

/* Forms & Form Fields */
.form-group {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

input, select, textarea {
  font-family: var(--font-family);
  font-size: 14px;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background-color: var(--bg-card);
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

/* Buttons */
.btn {
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
}

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

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

.btn-secondary {
  background-color: transparent;
  border-color: var(--border);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: var(--border);
}

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

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

.btn-icon {
  padding: 6px;
  border-radius: 6px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text-muted);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  background-color: var(--border);
  color: var(--text-main);
}

.btn-icon.edit-btn:hover {
  color: var(--primary);
  background-color: var(--primary-light);
}

.btn-icon.delete-btn:hover {
  color: var(--danger);
  background-color: rgba(239, 68, 68, 0.1);
}

/* Table Design */
.table-container {
  overflow-x: auto;
  margin-top: 10px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

th {
  background-color: var(--bg-main);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.5px;
}

tr:hover td {
  background-color: rgba(13, 148, 136, 0.02);
}

/* Dialog & Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background-color: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 28px;
  transform: scale(0.9);
  transition: var(--transition);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
}

.modal-footer {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Tabs & Page Management */
.page-section {
  display: none;
}

.page-section.active {
  display: flex;
  flex-direction: column;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Multi-item Requisition Form Builder */
.req-items-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 10px;
}

.req-item-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  gap: 16px;
  align-items: end;
}

/* Badge Styles */
.badge {
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  display: inline-block;
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--accent);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

.badge-danger {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.category-tag {
  background-color: var(--border);
  color: var(--text-muted);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 12px;
}

/* Tab filter bar for reports */
.filter-bar {
  background-color: var(--bg-card);
  padding: 18px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 20px;
  align-items: end;
  margin-bottom: 24px;
}

/* Printable Government Layouts - hidden on screen */
.print-section {
  display: none;
}

/* Print Form Styling details */
.thai-gov-doc {
  background: white;
  color: black !important;
  font-family: 'Sarabun', 'TH Sarabun PSK', sans-serif !important;
  font-size: 15px !important;
  line-height: 1.6;
  padding: 30px;
  border: 1px solid #ddd;
  border-radius: var(--radius);
  margin-bottom: 30px;
}

.thai-gov-doc table {
  border-collapse: collapse;
}

.thai-gov-doc th, .thai-gov-doc td {
  border: 1px solid black !important;
  color: black !important;
  padding: 6px 8px;
  font-size: 14px;
}

.thai-gov-doc th {
  background: #f0f0f0 !important;
  font-weight: bold;
}

.thai-gov-header {
  text-align: center;
  position: relative;
  margin-bottom: 20px;
}

.garuda-logo {
  width: 60px;
  height: auto;
  margin-bottom: 10px;
}

.thai-gov-header h3 {
  font-size: 18px;
  font-weight: bold;
}

.thai-gov-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 15px;
}

.sign-blocks {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  text-align: center;
}

.sign-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.sign-line {
  width: 200px;
  border-bottom: 1px dotted black;
}

/* System Settings Card utilities */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.action-card {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}

.action-card h4 {
  font-size: 15px;
  font-weight: 600;
}

.action-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

/* Print Overrides */
@media print {
  body {
    background-color: white !important;
    color: black !important;
  }
  
  aside, main > header, .card-header, .btn, .filter-bar, .header-actions, .theme-toggle-btn, .dashboard-grid, .card:not(.thai-gov-doc) {
    display: none !important;
  }
  
  main {
    margin-left: 0 !important;
    padding: 0 !important;
    max-width: 100% !important;
  }
  
  .print-section {
    display: block !important;
  }

  .thai-gov-doc {
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
    width: 100% !important;
  }

  @page {
    size: A4 portrait;
    margin: 1.5cm;
  }
}