:root {
  --bg-color: #121212;
  --surface-color: #1e1e1e;
  --surface-color-light: #2d2d2d;
  --primary-color: #3b82f6; /* Modern Blue */
  --primary-hover: #2563eb;
  --danger-color: #ef4444;
  --success-color: #10b981;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --border-radius: 12px;
  --transition-speed: 0.3s;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-speed);
}
a:hover {
  color: var(--primary-hover);
}

/* Navbar */
.navbar {
  background-color: var(--surface-color) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
  color: var(--text-primary) !important;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav-link {
  color: var(--text-secondary) !important;
  font-weight: 500;
}
.nav-link:hover {
  color: var(--text-primary) !important;
}

/* Cards */
.card {
  background-color: var(--surface-color);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
  margin-bottom: 1.5rem;
}

.card-header {
  background-color: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-weight: 600;
  padding: 1rem 1.5rem;
  color: var(--text-primary);
}

.card-body {
  padding: 1.5rem;
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  border-radius: 8px;
  padding: 0.5rem 1rem;
  font-weight: 500;
  transition: all var(--transition-speed);
  border: none;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}
.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

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

/* Forms */
.form-control {
  background-color: var(--surface-color-light);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-radius: 8px;
}
.form-control:focus {
  background-color: var(--surface-color-light);
  border-color: var(--primary-color);
  color: var(--text-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}
.form-control::placeholder {
  color: #6b7280;
}

/* Tables */
.table {
  color: var(--text-secondary);
  border-color: rgba(255, 255, 255, 0.05);
}
.table thead th {
  border-bottom: 2px solid rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  font-weight: 600;
}
.table td { /* Explicitly target cells to override Bootstrap */
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  vertical-align: middle;
}
/* Ensure hover effect works on dark mode */
.table-hover tbody tr:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
}
/* Ensure striped rows are visible */
.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(255, 255, 255, 0.02);
    color: inherit;
}


/* Badges */
.badge {
  padding: 0.5em 0.8em;
  border-radius: 6px;
  font-weight: 600;
}

/* Custom Utilities */
.text-muted {
  color: #9ca3af !important;
}

label {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
  background: var(--surface-color-light);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: #4b5563;
}