:root {
  --primary: #1B3A6B;
  --primary-dark: #0f2445;
  --primary-light: #2c599d;
  --accent: #0284c7;
  --accent-light: #e0f2fe;
  --success: #10b981;
  --success-bg: #ecfdf5;
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --purple: #8b5cf6;
  --purple-bg: #f5f3ff;
  
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --border-color: #e2e8f0;
  --border-focus: #94a3b8;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-inverse: #ffffff;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

[data-theme="dark"] {
  --bg-main: #0b1329;
  --bg-card: #132247;
  --bg-card-subtle: #1c305e;
  --border-color: #233b73;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-light: #64748b;
  
  --accent-light: #17325c;
  --success-bg: #064e3b;
  --warning-bg: #78350f;
  --danger-bg: #7f1d1d;
  --purple-bg: #4c1d95;
}

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

body {
  font-family: 'Prompt', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Header & Top Bar */
.navbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-area {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: 0 4px 10px rgba(27, 58, 107, 0.3);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

[data-theme="dark"] .brand-title {
  color: #60a5fa;
}

.brand-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 400;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Layout */
.app-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
  width: 100%;
  flex: 1;
}

/* Hero & Date Selector Bar */
.control-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.date-selector-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.date-pill-select {
  padding: 0.55rem 1rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
  outline: none;
  transition: all var(--transition-fast);
}

.date-pill-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27, 58, 107, 0.15);
}

.quick-pills {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
}

.quick-btn {
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-card-subtle);
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.quick-btn:hover, .quick-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* Action Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  box-shadow: 0 4px 10px rgba(27, 58, 107, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(27, 58, 107, 0.35);
}

.btn-success {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #fff;
  box-shadow: 0 4px 10px rgba(16, 185, 129, 0.25);
}

.btn-success:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(16, 185, 129, 0.35);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--bg-card-subtle);
}

/* Navigation Tabs */
.tabs-nav {
  display: flex;
  gap: 0.5rem;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 1.5rem;
  overflow-x: auto;
  padding-bottom: 2px;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  margin-bottom: -2px;
}

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

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

[data-theme="dark"] .tab-btn.active {
  color: #60a5fa;
  border-bottom-color: #60a5fa;
}

/* KPI Stat Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.kpi-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  flex-shrink: 0;
}

.kpi-danger .kpi-icon-box { background: var(--danger-bg); color: var(--danger); }
.kpi-warning .kpi-icon-box { background: var(--warning-bg); color: var(--warning); }
.kpi-success .kpi-icon-box { background: var(--success-bg); color: var(--success); }
.kpi-primary .kpi-icon-box { background: var(--accent-light); color: var(--primary); }

.kpi-details {
  flex: 1;
}

.kpi-value {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-main);
}

.kpi-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 0.2rem;
}

/* Executive Briefing Banner */
.briefing-banner {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.briefing-banner::after {
  content: '';
  position: absolute;
  right: -50px;
  top: -50px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.briefing-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.briefing-title-area h2 {
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.briefing-date-badge {
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-top: 0.25rem;
}

.briefing-summary-text {
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(0, 0, 0, 0.15);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border-left: 4px solid #38bdf8;
  margin-bottom: 1.25rem;
}

.briefing-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Content Columns & Cards */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

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

.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-badge {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

/* Incident Items */
.incident-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.incident-item {
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card-subtle);
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  transition: all var(--transition-fast);
}

.incident-item:hover {
  border-color: var(--border-focus);
}

.incident-item.urgent {
  border-left: 4px solid var(--danger);
  background: var(--danger-bg);
}

.incident-item.warning {
  border-left: 4px solid var(--warning);
  background: var(--warning-bg);
}

.incident-item.info {
  border-left: 4px solid var(--accent);
  background: var(--accent-light);
}

.incident-content {
  flex: 1;
}

.incident-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.incident-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.incident-meta {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-light);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--primary-dark);
  color: #fff;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  animation: slideIn 0.3s ease forwards;
}

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

/* Footer */
footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
  padding: 1.25rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}