:root {
  /* Light Theme Variablen */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --border-color: #dee2e6;
  --accent-color: #0d6efd;
  --success-bg: rgba(25, 135, 84, 0.15);
  --danger-bg: rgba(220, 53, 69, 0.15);
  --hover-bg: #f8f9fa;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #212529;
  --bg-secondary: #343a40;
  --text-primary: #f8f9fa;
  --text-secondary: #adb5bd;
  --border-color: #495057;
  --accent-color: #0d6efd;
  --success-bg: rgba(25, 135, 84, 0.25);
  --danger-bg: rgba(220, 53, 69, 0.25);
  --hover-bg: #343a40;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
}

/* Container und Layout */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem;
}

/* Tabellen-Styling */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  background: var(--bg-primary);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

th, td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background-color: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-secondary);
}

tr:hover {
  background-color: var(--hover-bg);
}

/* Signal-Indikatoren */
.bg-green {
  background-color: var(--success-bg);
  color: #198754;
}

.bg-red {
  background-color: var(--danger-bg);
  color: #dc3545;
}

/* Steuerelemente */
.controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

/* Buttons */
.btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
}

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

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

/* Suchfeld */
.search-input {
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* Indikator-Panel */
.indicator-panel {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.active-indicators {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.active-indicator {
  background: var(--accent-color);
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.875rem;
}

/* Loading Spinner */
.loading-spinner {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--accent-color);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  table {
    display: block;
    overflow-x: auto;
  }
}

/* Enhanced screener filter button tones */
.btn-group.btn-group-sm .btn{ transition: background-color .15s ease,color .15s ease,border-color .15s ease; }
.btn-tone-green{ background:#28a745 !important; color:#fff !important; border-color:#28a745 !important; }
.btn-tone-red{ background:#dc3545 !important; color:#fff !important; border-color:#dc3545 !important; }
.btn-tone-yellow{ background:#ffc107 !important; color:#212529 !important; border-color:#ffc107 !important; }