/**
 * CSIR EOI 8119 - Mining Safety Dashboard Styles
 * Modern, responsive CSS with CSS variables
 */

:root {
  /* Colors */
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary: #64748b;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* Neutrals */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

/* App Container */
.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.logo h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Navigation */
.nav {
  display: flex;
  gap: var(--spacing-xs);
}

.nav-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all 0.2s;
}

.nav-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.nav-btn.active {
  background: var(--primary);
  color: white;
}

/* User Menu */
.user-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

#userName {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

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

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

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

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

/* Main Content */
.main-content {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  width: 100%;
}

/* Views */
.view {
  display: none;
}

.view.active {
  display: block;
}

.view-header {
  margin-bottom: var(--spacing-lg);
}

.view-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.view-header p {
  color: var(--text-secondary);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.stat-card {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon svg {
  width: 24px;
  height: 24px;
}

.stat-icon.warning {
  background: #fef3c7;
  color: var(--warning);
}

.stat-icon.danger {
  background: #fee2e2;
  color: var(--danger);
}

.stat-icon.success {
  background: #dcfce7;
  color: var(--success);
}

.stat-icon.info {
  background: #dbeafe;
  color: var(--info);
}

.stat-content {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.chart-card {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.chart-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.chart-container {
  height: 200px;
}

/* Bar Chart */
.bar-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  height: 100%;
  padding-top: var(--spacing-md);
}

.bar {
  width: 12%;
  background: linear-gradient(to top, var(--primary), var(--info));
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  position: relative;
  transition: height 0.3s ease;
}

.bar::before {
  content: attr(data-value);
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
}

.bar span {
  position: absolute;
  bottom: -24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Severity Breakdown */
.severity-breakdown {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  height: 100%;
  justify-content: center;
}

.severity-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.severity-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
}

.severity-dot.critical {
  background: var(--danger);
}
.severity-dot.high {
  background: #f97316;
}
.severity-dot.medium {
  background: var(--warning);
}
.severity-dot.low {
  background: var(--success);
}

.severity-label {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.severity-value {
  font-weight: 600;
  font-size: 0.875rem;
}

/* Table Card */
.table-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

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

.table-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

/* Data Table */
.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
}

.data-table td {
  font-size: 0.875rem;
}

.data-table tbody tr:hover {
  background: var(--bg-tertiary);
}

/* Status Badges */
.badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-critical {
  background: #fee2e2;
  color: var(--danger);
}
.badge-high {
  background: #ffedd5;
  color: #c2410c;
}
.badge-medium {
  background: #fef3c7;
  color: #b45309;
}
.badge-low {
  background: #dcfce7;
  color: #15803d;
}
.badge-reported {
  background: #e0e7ff;
  color: #4338ca;
}
.badge-investigating {
  background: #fef3c7;
  color: #b45309;
}
.badge-resolved {
  background: #dcfce7;
  color: #15803d;
}
.badge-closed {
  background: #f1f5f9;
  color: #64748b;
}

/* Filters */
.filters {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.filters select {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  background: var(--bg-secondary);
  cursor: pointer;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-muted);
}

/* Checklist Grid */
.checklist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.checklist-card {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.checklist-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

/* Alerts List */
.alerts-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.alert-item {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--info);
}

.alert-item.emergency {
  border-left-color: var(--danger);
}
.alert-item.urgent {
  border-left-color: #f97316;
}
.alert-item.warning {
  border-left-color: var(--warning);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-overlay.hidden {
  display: none;
}

.modal {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

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

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
}

.modal-body {
  padding: var(--spacing-lg);
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--spacing-lg);
  text-align: center;
}

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

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-wrap: wrap;
  }

  .nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}