:root {
  /* Light theme colors */
  --primary-color: #2196f3;
  --secondary-color: #1976d2;
  --background-color: #f5f5f5;
  --card-background: #ffffff;
  --text-color: #333333;
  --text-secondary: #666666;
  --border-color: #e0e0e0;
  --success-color: #4caf50;
  --warning-color: #ff9800;
  --danger-color: #f44336;
  --critical-color: #d32f2f;

  /* Spacing */
  --border-radius: 8px;
  --card-padding: 1.5rem;
  --grid-gap: 1.5rem;

  /* Effects */
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s ease;
}

/* Dark theme colors */
[data-theme="dark"] {
  --background-color: #1a1a1a;
  --card-background: #2d2d2d;
  --text-color: #ffffff;
  --text-secondary: #b0b0b0;
  --border-color: #404040;
}

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

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  transition: var(--transition);
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

/* Header Styles */
header {
  margin-bottom: 3rem;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin: 0;
}

.user-controls {
  display: flex;
  gap: 1rem;
}

.intro {
  max-width: 800px;
  margin: 0 auto 2rem;
  color: var(--text-secondary);
  text-align: center;
}

/* Dashboard Summary */
.dashboard-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--grid-gap);
  margin-bottom: 2rem;
}

.summary-card {
  background-color: var(--card-background);
  padding: var(--card-padding);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.summary-card h3 {
  margin-bottom: 1rem;
  color: var(--primary-color);
}

/* Controls */
.controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.control-group {
  display: flex;
  gap: 1rem;
}

.control-btn {
  padding: 0.5rem 1rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

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

.control-btn.danger:hover {
  background-color: #d32f2f;
}

.search-container {
  display: flex;
  gap: 1rem;
  flex-grow: 1;
  max-width: 600px;
}

#search,
.filter-select {
  padding: 0.5rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--card-background);
  color: var(--text-color);
  transition: var(--transition);
}

#search {
  flex-grow: 1;
}

#search:focus,
.filter-select:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--grid-gap);
}

/* Checklist Cards */
.checklist-card {
  background-color: var(--card-background);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  overflow: hidden;
}

.checklist-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

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

.card-header h2 {
  margin: 0;
  color: var(--primary-color);
}

.priority-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.priority-badge.critical {
  background-color: var(--critical-color);
  color: white;
}

.priority-badge.high {
  background-color: var(--danger-color);
  color: white;
}

.priority-badge.medium {
  background-color: var(--warning-color);
  color: white;
}

.card-progress {
  padding: 1rem var(--card-padding);
}

.progress-bar {
  height: 20px;
  background-color: var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background-color: var(--primary-color);
  transition: var(--transition);
  width: 0;
}

.progress-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-weight: bold;
  text-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
}

.checklist-card p {
  padding: 0 var(--card-padding);
  color: var(--text-secondary);
  margin: 1rem 0;
}

.card-footer {
  padding: var(--card-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
}

.view-btn {
  padding: 0.5rem 1rem;
  background-color: var(--primary-color);
  color: white;
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

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

.last-updated {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Footer */
.dashboard-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.stats-summary {
  display: flex;
  justify-content: center;
  gap: 3rem;
}

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

.stat-label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  justify-content: center;
  align-items: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background-color: var(--card-background);
  padding: var(--card-padding);
  border-radius: var(--border-radius);
  max-width: 500px;
  width: 90%;
}

.export-options {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0;
}

.export-option {
  padding: 1rem;
  background-color: var(--card-background);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
}

.export-option:hover {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  .header-top {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  .controls {
    flex-direction: column;
  }

  .search-container {
    flex-direction: column;
  }

  .stats-summary {
    flex-direction: column;
    gap: 1.5rem;
  }
}

/* Summary Card */
.summary-card {
  background-color: var(--card-background);
  padding: var(--card-padding);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.summary-card h3 {
  margin-bottom: 1rem;
  color: var(--primary-color);
}