/* ==============================
   Summary Cards
   ============================== */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.summary-card {
  background-color: #f8f9fa;
  border-radius: 8px;
  padding: 1rem 1.5rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.summary-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.summary-card h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: #333;
}

.summary-card .metric-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: #1c7ed6;
}

/* Color variations based on pinning setup */
.summary-card.unpinned {
  border-top: 4px solid #f03e3e;
}
.summary-card.half_pinned {
  border-top: 4px solid #fab005;
}
.summary-card.pinned {
  border-top: 4px solid #37b24d;
}

/* ==============================
   Filter Panel
   ============================== */
.filter-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.filter-option {
  background-color: #e9ecef;
  border: 1px solid #ced4da;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.filter-option:hover {
  background-color: #dee2e6;
}

.filter-option.active {
  background-color: #1c7ed6;
  color: #fff;
  border-color: #1c7ed6;
}

/* ==============================
   Chart Container
   ============================== */
.visualization-container {
  background: #fff;
  border: 1px solid #dee2e6;
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.chart-canvas {
  width: 100%;
  height: 400px;
}

@media (max-width: 768px) {
  .chart-canvas {
    height: 300px;
  }
}

/* ==============================
   Footer Notice
   ============================== */
footer {
  text-align: center;
  padding: 1rem 0;
  font-size: 0.8rem;
  color: #868e96;
}

footer::after {
  content: "© 2026 Donau2Space.de";
}