/* CSS variables for consistent design tokens */
:root {
  /* Dark Theme Default */
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.7);
  --border-color: rgba(255, 255, 255, 0.06);
  --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --primary: #558000;
  --primary-hover: #6ea600;
  --primary-light: rgba(85, 128, 0, 0.15);
  --primary-glow: rgba(85, 128, 0, 0.35);

  --success: #10b981;
  --success-light: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.1);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme overrides */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --border-color: rgba(0, 0, 0, 0.06);
  --card-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --primary: #436600;
  --primary-hover: #324d00;
  --primary-light: rgba(67, 102, 0, 0.08);
  --primary-glow: rgba(67, 102, 0, 0.2);
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  transition: background-color 0.4s ease, color 0.4s ease;
  line-height: 1.5;
}

/* Sidebar Layout Architecture */
.dashboard-wrapper {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

.sidebar {
  width: 290px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 2.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  position: sticky;
  top: 0;
  height: 100vh;
  flex-shrink: 0;
  transition: var(--transition);
}

.main-content {
  flex-grow: 1;
  padding: 2.5rem 3rem;
  background-color: var(--bg-primary);
  overflow-y: auto;
  min-width: 0; /* Prevents flex children from breaking boundaries */
}

/* Sidebar Logo & Headers */
.sidebar-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.sidebar-header .logo-icon {
  font-size: 2.5rem;
  color: var(--primary);
  background: var(--primary-light);
  width: 4.5rem;
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px var(--primary-glow);
}

.sidebar-header .logo-text h1 {
  font-size: 1.4rem;
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.sidebar-header .logo-text p {
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0.9;
}

.sidebar-header .logo-text .sub-univ {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 0.1rem;
}

/* Sidebar Navigation Tabs */
.tabs-nav {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 0.95rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius-md);
  text-align: left;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  transition: var(--transition);
}

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

.tab-btn.active {
  color: #ffffff !important;
  background-color: var(--primary);
  box-shadow: 0 4px 15px var(--primary-glow);
}

.tab-icon {
  font-size: 1.15rem;
}

/* Sidebar Footer & Theme Toggle */
.sidebar-footer {
  margin-top: auto;
  width: 100%;
}

.btn-icon-toggle {
  width: 100%;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: inherit;
  transition: var(--transition);
}

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

/* Content Headers */
.content-header {
  margin-bottom: 2rem;
}

.content-header h2 {
  font-size: 1.8rem;
  font-family: 'Outfit', sans-serif;
  color: var(--text-primary);
}

.content-header .subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* Cards & Grid Systems */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  padding: 2rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(85, 128, 0, 0.25);
  box-shadow: 0 10px 40px 0 rgba(0, 0, 0, 0.1);
}

/* Filter panel layout */
.filter-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  align-items: end;
  background: var(--bg-card);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.filter-group label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-group select, .filter-group input {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
  width: 100%;
}

.filter-group select:focus, .filter-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
  background-color: var(--bg-card);
}

/* KPI Dashboard Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.kpi-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  position: relative;
  overflow: hidden;
}

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

.kpi-icon {
  width: 3.75rem;
  height: 3.75rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  background-color: var(--bg-secondary);
}

.kpi-info h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kpi-value {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: 'Outfit', sans-serif;
  margin-top: 0.15rem;
  color: var(--text-primary);
}

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.5rem;
}

@media (min-width: 1200px) {
  .double-width {
    grid-column: span 2;
  }
}

.chart-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  min-height: 400px;
}

.chart-header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.chart-header h2 {
  font-size: 1.3rem;
  font-weight: 700;
}

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

.chart-container {
  position: relative;
  flex-grow: 1;
  width: 100%;
  height: 100%;
  min-height: 280px;
}

/* Tables styling */
.table-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.table-info span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  border: 1px solid rgba(85, 128, 0, 0.15);
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

th {
  background-color: rgba(0, 0, 0, 0.15);
  color: var(--text-secondary);
  font-weight: 700;
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

[data-theme="light"] th {
  background-color: rgba(0, 0, 0, 0.03);
}

td {
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  transition: var(--transition);
}

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

tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

[data-theme="light"] tr:hover td {
  background-color: rgba(0, 0, 0, 0.015);
}

/* Matrix Table Specifics */
.matrix-table th {
  text-align: center;
}
.matrix-table th:first-child {
  text-align: left;
}

.primary-column {
  background-color: rgba(85, 128, 0, 0.06) !important;
  color: var(--primary) !important;
  font-weight: 700;
}

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

/* Buttons Styling */
.btn-secondary {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

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

/* Pagination container alignment */
.pagination-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
}

#page-info {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}