/* Master List of Digital Hazards - Main Stylesheet */

:root {
  --primary-color: #2c3e50;
  --secondary-color: #34495e;
  --accent-color: #3498db;
  --text-color: #333;
  --bg-color: #f8f9fa;
  --card-bg: #ffffff;
  --border-color: #dee2e6;
  --header-bg: #1a252f;
  --table-header: #d5e8f0;
  --shadow: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-hover: 0 4px 8px rgba(0,0,0,0.15);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
}

/* Header */
header {
  background: var(--header-bg);
  color: white;
  padding: 1.5rem 2rem;
  box-shadow: var(--shadow);
}

header h1 {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

header p {
  font-size: 0.95rem;
  opacity: 0.9;
}

/* Navigation */
nav {
  background: var(--primary-color);
  padding: 1rem 2rem;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

nav a {
  color: white;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: background 0.3s;
  display: inline-block;
}

nav a:hover {
  background: var(--accent-color);
}

nav a.active {
  background: var(--accent-color);
  font-weight: 600;
}

/* Main Content */
main {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
}

.container {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

h2 {
  color: var(--primary-color);
  font-size: 1.8rem;
  margin-bottom: 1rem;
  border-bottom: 3px solid var(--accent-color);
  padding-bottom: 0.5rem;
}

h3 {
  color: var(--secondary-color);
  font-size: 1.3rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1rem;
}

/* Category Cards (for index page) */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.category-card {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
  border-left: 4px solid var(--accent-color);
}

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

.category-card h3 {
  margin-top: 0;
  color: var(--primary-color);
}

.category-card p {
  margin-bottom: 1rem;
  color: #666;
  font-size: 0.9rem;
}

.category-card .hazard-count {
  font-weight: 600;
  color: var(--accent-color);
  font-size: 1.1rem;
}

.category-card a {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1.5rem;
  background: var(--accent-color);
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.3s;
}

.category-card a:hover {
  background: #2980b9;
}

/* Legend */
.legend {
  background: #f1f3f5;
  border-radius: 6px;
  padding: 1rem;
  margin: 1.5rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.legend-item strong {
  color: var(--primary-color);
}

/* Tables */
.table-container {
  overflow-x: auto;
  margin: 1.5rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  box-shadow: var(--shadow);
  border-radius: 8px;
  overflow: hidden;
}

thead {
  background: var(--table-header);
}

th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--primary-color);
  border-bottom: 2px solid var(--border-color);
}

th.platform-col {
  text-align: center;
  width: 80px;
}

td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

td.platform-cell {
  text-align: center;
  font-weight: 600;
  color: var(--accent-color);
  font-size: 1.1rem;
}

tr:hover {
  background: #f8f9fa;
}

tr.hidden {
  display: none;
}

/* Summary Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.stat-card {
  background: linear-gradient(135deg, var(--accent-color), #2980b9);
  color: white;
  padding: 1.5rem;
  border-radius: 8px;
  text-align: center;
}

.stat-card .stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  display: block;
  margin-bottom: 0.5rem;
}

.stat-card .stat-label {
  font-size: 0.9rem;
  opacity: 0.95;
}

/* Navigation Buttons */
.page-nav {
  display: flex;
  justify-content: space-between;
  margin: 2rem 0;
  gap: 1rem;
}

.nav-btn {
  padding: 0.75rem 1.5rem;
  background: var(--accent-color);
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-btn:hover {
  background: #2980b9;
}

.nav-btn.disabled {
  background: #bdc3c7;
  cursor: not-allowed;
  pointer-events: none;
}

/* Reports Grid */
.reports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.report-card {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
  border-left: 4px solid #27ae60;
  display: flex;
  flex-direction: column;
}

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

.report-card h3 {
  margin-top: 0;
  color: var(--primary-color);
  font-size: 1.2rem;
}

.report-card p {
  margin-bottom: 1rem;
  color: #666;
  font-size: 0.9rem;
  flex-grow: 1;
}

.pdf-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding: 0.65rem 1.25rem;
  background: #27ae60;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.3s, transform 0.2s;
  font-weight: 500;
  font-size: 0.9rem;
}

.pdf-button:hover {
  background: #229954;
  transform: translateY(-2px);
}

.pdf-button.view {
  background: var(--accent-color);
}

.pdf-button.view:hover {
  background: #2980b9;
}

.pdf-button span {
  font-size: 1.1rem;
}

/* Footer */
footer {
  background: var(--header-bg);
  color: white;
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
}

footer p {
  margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  header {
    padding: 1rem;
  }
  
  header h1 {
    font-size: 1.4rem;
  }
  
  nav {
    padding: 0.75rem 1rem;
  }
  
  nav ul {
    gap: 0.5rem;
  }
  
  nav a {
    padding: 0.4rem 0.75rem;
    font-size: 0.9rem;
  }
  
  main {
    padding: 0 1rem;
    margin: 1rem auto;
  }
  
  .container {
    padding: 1rem;
  }
  
  h2 {
    font-size: 1.4rem;
  }
  
  .category-grid {
    grid-template-columns: 1fr;
  }
  
  .reports-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-controls {
    padding: 0.75rem;
  }
  
  .filter-btn {
    padding: 0.4rem 0.75rem;
    font-size: 0.85rem;
  }
  
  table {
    font-size: 0.9rem;
  }
  
  th, td {
    padding: 0.5rem;
  }
  
  th.platform-col {
    width: 60px;
    font-size: 0.85rem;
  }
  
  .page-nav {
    flex-direction: column;
  }
  
  .nav-btn {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 1.2rem;
  }
  
  .legend {
    font-size: 0.85rem;
  }
  
  .stat-card .stat-number {
    font-size: 2rem;
  }
}