:root {
  --bg-app: #f4f6fa;
  --bg-sidebar: #ffffff;
  --bg-card: #ffffff;
  --border-color: #dadce0;
  
  --text-main: #202124;      /* Dark grey (Google's primary text) */
  --text-muted: #5f6368;     /* Muted grey (Google's secondary text) */
  
  --color-primary: #1a73e8;  /* Google Blue */
  --color-primary-hover: #1557b0;
  --color-primary-light: #e8f0fe;
  
  --color-success: #137333;   /* Google Green */
  --color-success-bg: #e6f4ea;
  --color-error: #c5221f;     /* Google Red */
  --color-error-bg: #fce8e6;
  --color-warning: #b06000;   /* Google Orange/Yellow */
  --color-warning-bg: #fef7e0;
  
  --color-68: #98989d;
  --color-69: #1a73e8;
  
  --font-stack: "Google Sans", "Sarabun", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 6px;
  
  --shadow-sm: 0 1px 2px 0 rgba(60, 64, 67, 0.15), 0 1px 3px 1px rgba(60, 64, 67, 0.08);
  --shadow-md: 0 2px 6px 0 rgba(60, 64, 67, 0.15), 0 1px 3px 0 rgba(60, 64, 67, 0.1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-stack);
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-app);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
}

/* App Layout Container */
.app-container {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* Left Sidebar (Mission BOSS style - pure white) */
.sidebar {
  width: 250px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: fixed;
  height: 100vh;
  left: 0;
  top: 0;
  z-index: 100;
}

.sidebar-top {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* Brand logo */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-left: 8px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
}

.brand-name h2 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.brand-name p {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Nav Menu Items */
.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 4px;
  list-style: none;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--text-main);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.nav-item a:hover {
  background-color: #f1f3f4;
}

.nav-item.active a {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 700;
}

.nav-icon {
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Bottom Profile Card (Mission BOSS style) */
.profile-card {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: #f1f3f4;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 0, 0, 0.03);
}

.profile-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.profile-info h4 {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-main);
}

.profile-info p {
  font-size: 10.5px;
  color: var(--text-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #34a853; /* Online green */
  display: inline-block;
}

/* Main Content Area */
.main-content {
  flex: 1;
  margin-left: 250px;
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: calc(100vw - 250px);
}

/* Top bar style */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.search-box {
  position: relative;
}

.search-box input {
  padding: 8px 16px 8px 36px;
  border-radius: var(--radius-md);
  border: none;
  background-color: #eef1f6;
  color: var(--text-main);
  font-size: 13px;
  outline: none;
  min-width: 240px;
  transition: var(--transition-fast);
}

.search-box input:focus {
  background-color: #ffffff;
  box-shadow: 0 0 0 2px var(--color-primary-light), 0 1px 3px rgba(0,0,0,0.1);
}

.search-box::before {
  content: '🔍';
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  opacity: 0.5;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-icon-btn {
  background: none;
  border: none;
  font-size: 16px;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

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

.user-profile-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

/* Page Title Section */
.page-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.page-title p {
  font-size: 13px;
  color: var(--text-muted);
}

.page-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.control-select {
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: #ffffff;
  color: var(--text-main);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  min-width: 200px;
  transition: var(--transition-fast);
}

.control-select:hover {
  border-color: var(--text-muted);
}

.tab-group {
  display: flex;
  background-color: #eef1f6;
  padding: 3px;
  border-radius: var(--radius-md);
}

.tab-control-btn {
  background: none;
  border: none;
  padding: 6px 14px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: calc(var(--radius-md) - 2px);
  transition: var(--transition-fast);
}

.tab-control-btn.active {
  background-color: #ffffff;
  color: var(--text-main);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-refresh {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.btn-refresh:hover {
  background-color: #f1f3f4;
  color: var(--text-main);
}

.btn-primary {
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: var(--color-primary);
  color: #ffffff;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

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

/* KPI Cards Layout (4 Columns) */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

@media (max-width: 1024px) {
  .kpi-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .kpi-row {
    grid-template-columns: 1fr;
  }
}

.kpi-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
  transition: var(--transition-fast);
}

.kpi-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 1px 6px rgba(0,0,0,0.03);
}

/* KPI Circular Icons Containers (Google colors) */
.kpi-icon-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.kpi-icon-circle.blue { background-color: var(--color-primary-light); color: var(--color-primary); }
.kpi-icon-circle.green { background-color: var(--color-success-bg); color: var(--color-success); }
.kpi-icon-circle.red { background-color: var(--color-error-bg); color: var(--color-error); }
.kpi-icon-circle.yellow { background-color: var(--color-warning-bg); color: var(--color-warning); }

.kpi-info-block {
  display: flex;
  flex-direction: column;
}

.kpi-info-block h4 {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 2px;
}

.kpi-info-block .main-val {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.kpi-info-block .unit-val {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.kpi-trend-wrapper {
  position: absolute;
  top: 14px;
  right: 14px;
}

.trend-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
}

.trend-badge.positive {
  background-color: var(--color-success-bg);
  color: var(--color-success);
}

.trend-badge.negative {
  background-color: var(--color-error-bg);
  color: var(--color-error);
}

.trend-badge.stable {
  background-color: #f1f3f4;
  color: var(--text-muted);
}

/* Visualization Panel (8 cols + 4 cols) */
.vis-row {
  display: grid;
  grid-template-columns: 8fr 4fr;
  gap: 20px;
}

@media (max-width: 1024px) {
  .vis-row {
    grid-template-columns: 1fr;
  }
}

.card-panel {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.panel-title h3 {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-main);
}

.panel-title p {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 1px;
}

.panel-legend {
  display: flex;
  gap: 12px;
  font-size: 11.5px;
  font-weight: 500;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-muted);
}

.legend-color {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.legend-color.y68 { background-color: var(--color-68); }
.legend-color.y69 { background-color: var(--color-primary); }

.chart-area {
  position: relative;
  width: 100%;
  height: 280px;
}

/* Alerts Panel */
.alerts-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.alert-box {
  background-color: var(--color-error-bg);
  color: var(--color-error);
  border-left: 4px solid var(--color-error);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 500;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.alert-box-header {
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 4px;
}

.alert-item {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  line-height: 1.35;
}

.status-box {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border-left: 4px solid var(--color-success);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #34a853;
}

/* Progress Bars inside side panel */
.progress-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}

.progress-list h4 {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 2px;
}

.progress-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11.5px;
  font-weight: 500;
}

.progress-name {
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 160px;
}

.progress-val {
  color: var(--color-primary);
  font-weight: 700;
}

.progress-bar-bg {
  width: 100%;
  height: 6px;
  background-color: #f1f3f4;
  border-radius: 9999px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--color-primary);
  border-radius: 9999px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Table Area */
.table-panel {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 20px;
}

.table-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.table-filter-search {
  position: relative;
}

.table-filter-search input {
  padding: 8px 12px 8px 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: #ffffff;
  color: var(--text-main);
  font-size: 12.5px;
  outline: none;
  min-width: 220px;
  transition: var(--transition-fast);
}

.table-filter-search input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

.table-filter-search::before {
  content: '🔍';
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  opacity: 0.5;
}

.responsive-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

table.dashboard-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

table.dashboard-table th {
  background-color: #f8f9fa;
  padding: 12px 14px;
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: var(--transition-fast);
}

table.dashboard-table th:hover {
  background-color: #f1f3f4;
  color: var(--text-main);
}

table.dashboard-table th.sorted-asc::after {
  content: ' ▴';
}

table.dashboard-table th.sorted-desc::after {
  content: ' ▾';
}

table.dashboard-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  color: var(--text-main);
}

table.dashboard-table tbody tr {
  transition: var(--transition-fast);
}

table.dashboard-table tbody tr:hover {
  background-color: #f8f9fa;
}

/* Table comparative badges */
.table-change-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
}

.table-change-badge.positive {
  background-color: var(--color-success-bg);
  color: var(--color-success);
}

.table-change-badge.negative {
  background-color: var(--color-error-bg);
  color: var(--color-error);
}

.table-change-badge.neutral {
  background-color: #f1f3f4;
  color: var(--text-muted);
}

.table-school-link {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px dashed var(--border-color);
  transition: var(--transition-fast);
}

.table-school-link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Footer layout */
.footer-row {
  margin-top: 12px;
  text-align: center;
  font-size: 11.5px;
  color: var(--text-muted);
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
  transition: var(--transition-fast);
}

.modal-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 400px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  border: 1px solid var(--border-color);
  overflow: hidden;
  animation: modalSlideIn 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalSlideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

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

.modal-header h3 {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

.modal-close-btn:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.settings-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-main);
}

.settings-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.color-options {
  display: flex;
  gap: 12px;
  margin-top: 4px;
}

.color-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition-fast);
}

.color-dot:hover {
  transform: scale(1.1);
}

.color-dot.active {
  border-color: #202124;
  box-shadow: 0 0 0 3px rgba(0,0,0,0.08);
}

/* Glow effects when navigated to panels */
.glow-highlight {
  animation: glowAnimation 1.5s ease-in-out;
}

@keyframes glowAnimation {
  0% { box-shadow: none; border-color: var(--border-color); }
  50% { box-shadow: 0 0 15px rgba(26, 115, 232, 0.4); border-color: var(--color-primary); }
  100% { box-shadow: none; border-color: var(--border-color); }
}

/* --- Responsive & Mobile Layout Additions --- */

/* Hide hamburger toggle by default on desktop */
.menu-toggle-btn {
  display: none;
}

/* Backdrop for sidebar drawer */
.sidebar-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(2px);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.sidebar-backdrop.active {
  opacity: 1;
  visibility: visible;
}

/* Media Query: Tablets & Mobile Devices (<= 992px) */
@media (max-width: 992px) {
  /* Sidebar transitions to slide-out drawer */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 260px;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    box-shadow: 4px 0 15px rgba(0, 0, 0, 0.05);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  /* Shift main content to cover full page width */
  .main-content {
    margin-left: 0;
    max-width: 100%;
    padding: 20px 24px;
  }

  /* Show mobile hamburger icon button */
  .menu-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    padding: 8px;
    margin-right: 8px;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
  }

  .menu-toggle-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
  }

  .menu-toggle-btn svg {
    display: block;
  }

  /* Align top-bar to accommodate the hamburger button */
  .top-bar {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 12px;
  }

  .top-bar-right {
    margin-left: auto;
  }
}

/* Media Query: Small Screen & Mobile Devices (<= 768px) */
@media (max-width: 768px) {
  .main-content {
    padding: 16px;
    gap: 20px;
  }

  /* Stack dashboard header elements vertically */
  .page-title-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .page-title h1 {
    font-size: 20px;
  }

  .page-title p {
    font-size: 12.5px;
  }

  /* Stack actions, filter selectors, and buttons */
  .page-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .control-select {
    width: 100%;
    min-width: unset;
  }

  .tab-group {
    width: 100%;
    display: flex;
  }

  .tab-control-btn {
    flex: 1;
    text-align: center;
  }

  .btn-refresh {
    padding: 10px;
    justify-content: center;
  }

  .btn-primary {
    width: 100%;
    justify-content: center;
    padding: 10px 16px;
  }

  /* Table Header Controls Alignment */
  .table-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .table-filter-search input {
    width: 100%;
    min-width: unset;
  }

  /* Lower chart panel height for compact view */
  .chart-area {
    height: 240px;
  }

  /* KPI Card adjustments */
  .kpi-card {
    padding: 14px 16px;
  }

  .kpi-info-block .main-val {
    font-size: 20px;
  }
}

/* Media Query: Extra Small Mobile Devices (<= 480px) */
@media (max-width: 480px) {
  .top-bar {
    padding-bottom: 4px;
  }

  .search-box input {
    min-width: 120px;
    max-width: 160px;
    padding: 8px 12px 8px 30px;
  }

  .search-box::before {
    left: 10px;
  }
}

/* --- Collapsible Responsive Table Styles --- */

/* Default hide toggle column and button styling */
.col-toggle {
  display: none;
}

.row-toggle-btn {
  background-color: var(--color-primary-light);
  border: none;
  color: var(--color-primary);
  border-radius: 4px;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  transition: var(--transition-fast);
}

.row-toggle-btn:hover {
  background-color: var(--color-primary);
  color: #ffffff;
}

/* Row states */
tr.expanded {
  background-color: #fcfdfe !important;
}

/* Default show for all table columns */
.col-seq, .col-name, .col-std68, .col-std69, .col-change, .col-room68, .col-room69, .col-ratio68, .col-ratio69 {
  display: table-cell;
}

/* Tablet Breakpoint (<= 1024px) */
@media (max-width: 1024px) {
  .col-toggle {
    display: table-cell;
  }
  /* Hide minor columns on tablet */
  .col-room68, .col-room69, .col-ratio68, .col-ratio69 {
    display: none;
  }
  
  /* Details Sub-row Styling */
  tr.child-row {
    background-color: #f8fafc !important;
  }
  
  tr.child-row td {
    padding: 0 !important;
    border-bottom: 1px solid var(--border-color);
  }
  
  .child-details-wrapper {
    padding: 12px 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    border-left: 4px solid var(--color-primary);
    background-color: #f8fafc;
    animation: childSlideIn 0.18s ease-out;
  }
  
  @keyframes childSlideIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .child-detail-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
  }
  
  .detail-label {
    font-weight: 700;
    color: var(--text-muted);
  }
  
  .detail-val {
    color: var(--text-main);
  }
}

/* Mobile Breakpoint (<= 768px) */
@media (max-width: 768px) {
  /* On mobile, also hide std68 */
  .col-std68 {
    display: none;
  }
  
  .child-details-wrapper {
    flex-direction: column;
    gap: 8px;
    padding: 10px 14px;
  }
}

/* --- Presentation Dark Mode Styles --- */

body.dark-theme {
  --bg-app: #121214;          /* Google dark app background */
  --bg-sidebar: #1e1e24;      /* Google dark sidebar */
  --bg-card: #1e1e24;         /* Google dark card */
  --border-color: #3c4043;    /* Google dark border color */
  
  --text-main: #f1f3f4;       /* Google dark primary text */
  --text-muted: #9aa0a6;      /* Google dark secondary text */
  
  --color-primary-light: rgba(26, 115, 232, 0.15);
  --color-success-bg: rgba(19, 115, 51, 0.15);
  --color-error-bg: rgba(197, 34, 31, 0.15);
  --color-warning-bg: rgba(176, 96, 0, 0.15);
}

/* Specific UI Element overrides under Dark Mode */
body.dark-theme select,
body.dark-theme input[type="text"] {
  background-color: #2e3033;
  color: #f1f3f4;
  border-color: #3c4043;
}

body.dark-theme input[type="range"] {
  accent-color: var(--color-primary);
}

body.dark-theme .modal-card {
  background-color: #1e1e24;
  color: #f1f3f4;
  border-color: #3c4043;
}

body.dark-theme .tab-group {
  background-color: #2e3033;
}

body.dark-theme .tab-control-btn.active {
  background-color: #1e1e24;
  color: #f1f3f4;
}

body.dark-theme .profile-card,
body.dark-theme .search-box input,
body.dark-theme .btn-refresh:hover,
body.dark-theme .nav-item a:hover {
  background-color: #2e3033;
  color: #f1f3f4;
}

body.dark-theme .nav-item.active a {
  background-color: rgba(26, 115, 232, 0.2);
  color: #8ab4f8; /* Google Sans Blue light */
}

body.dark-theme table.dashboard-table th {
  background-color: #25262b;
  color: #9aa0a6;
}

body.dark-theme table.dashboard-table tbody tr:hover {
  background-color: #25262b;
}

body.dark-theme .child-details-wrapper {
  background-color: #202124;
}

body.dark-theme .row-toggle-btn {
  background-color: rgba(26, 115, 232, 0.2);
  color: #8ab4f8;
}

body.dark-theme .row-toggle-btn:hover {
  background-color: var(--color-primary);
  color: #ffffff;
}

body.dark-theme footer-row {
  color: var(--text-muted);
}

/* --- School Comparison & Advanced Insights Layouts --- */

.comparison-grid,
.insights-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* Strategic Insights list items styling */
.insight-bullet {
  padding-left: 20px;
  position: relative;
}

.insight-bullet::before {
  content: "•";
  position: absolute;
  left: 6px;
  color: var(--color-primary);
  font-weight: bold;
}

/* Responsive queries for comparison */
@media (max-width: 992px) {
  .comparison-grid,
  .insights-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* Dark theme overrides for Comparison specific colors */
body.dark-theme #schoolCardB {
  border-left-color: var(--color-warning, #b06000) !important;
}

body.dark-theme .comparison-grid .kpi-card {
  background-color: var(--bg-card);
}

/* --- School Detail Modal (Drill-down) --- */
.school-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1100;
  backdrop-filter: blur(4px);
  transition: var(--transition-fast);
}

.school-modal-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  width: 95%;
  max-width: 800px;
  max-height: 90vh;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  border: 1px solid var(--border-color);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  animation: modalSlideIn 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-theme .school-modal-card {
  background-color: #1e1e24;
  color: #f1f3f4;
  border-color: #3c4043;
}

.school-modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.school-modal-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 2px;
}

.school-modal-header p {
  font-size: 12px;
  color: var(--text-muted);
}

.school-modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.school-modal-kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.school-modal-kpi-card {
  background-color: #f8f9fa;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  text-align: center;
}

body.dark-theme .school-modal-kpi-card {
  background-color: #25262b;
}

.school-modal-kpi-card h4 {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 4px;
}

.school-modal-kpi-card p {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}

.school-modal-charts-row {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 20px;
}

@media (max-width: 768px) {
  .school-modal-charts-row {
    grid-template-columns: 1fr;
  }
  .school-modal-kpi-row {
    grid-template-columns: 1fr;
  }
}

.school-modal-chart-container {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  background-color: #ffffff;
  min-height: 280px;
  position: relative;
}

body.dark-theme .school-modal-chart-container {
  background-color: #1e1e24;
}

.school-modal-chart-container h4 {
  font-size: 12.5px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-main);
}

/* --- School Clustering Tab styling --- */
.cluster-tabs-container {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.cluster-tab-btn {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.cluster-tab-btn:hover {
  background-color: #f1f3f4;
  color: var(--text-main);
}

.cluster-tab-btn.active {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

body.dark-theme .cluster-tab-btn {
  background-color: #1e1e24;
  color: var(--text-muted);
}

body.dark-theme .cluster-tab-btn:hover {
  background-color: #2e3033;
  color: #f1f3f4;
}

body.dark-theme .cluster-tab-btn.active {
  background-color: rgba(26, 115, 232, 0.2);
  color: #8ab4f8;
  border-color: #8ab4f8;
}

/* --- Print Stylesheet (@media print) --- */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }
  
  .sidebar,
  .top-bar-right,
  .page-actions,
  .table-controls,
  .modal-overlay,
  .school-modal-overlay,
  .theme-toggle,
  .btn-refresh,
  #closeSettingsBtn,
  #btnExport,
  .cluster-tabs-container {
    display: none !important;
  }
  
  .main-content {
    margin-left: 0 !important;
    padding: 0 !important;
    max-width: 100% !important;
  }
  
  .card-panel,
  .kpi-card,
  table.dashboard-table {
    border: 1px solid #000000 !important;
    box-shadow: none !important;
    page-break-inside: avoid;
  }
  
  table.dashboard-table th {
    background-color: #f0f0f0 !important;
    color: #000000 !important;
  }
  
  .kpi-row {
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 10px !important;
  }
  
  .vis-row {
    grid-template-columns: 1fr !important;
    gap: 15px !important;
  }
  
  .chart-area {
    height: 300px !important;
    page-break-inside: avoid;
  }
}