/* =============================
   Summary Panels
   ============================= */
.summary-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.stats-panel {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  transition: background-color 0.3s ease;
}

.stats-panel:hover {
  background-color: var(--surface-hover);
}

.stats-panel__title {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.stats-panel__value {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.stats-panel__delta {
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
  color: var(--accent);
}

/* =============================
   Charts
   ============================= */
.chart-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.comparison-view {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 1024px) {
  .comparison-view {
    grid-template-columns: 1fr 1fr;
  }
}

.chart-container {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  overflow-x: auto;
}

.chart-title {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.chart-placeholder {
  text-align: center;
  padding: var(--spacing-lg);
  color: var(--text-secondary);
}

/* =============================
   Tables
   ============================= */
.table-section {
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  border-spacing: 0;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.table-section th,
.table-section td {
  text-align: left;
  padding: var(--spacing-sm) var(--spacing-md);
  white-space: nowrap;
}

.table-section thead {
  background-color: var(--surface-alt);
}

.table-section tbody tr:nth-child(odd) {
  background-color: var(--surface-hover);
}

.table-section tbody tr:hover {
  background-color: var(--surface-focus);
}

.table-section th {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.table-section td {
  font-size: 0.875rem;
  color: var(--text-primary);
}

/* =============================
   Accessibility adjustments
   ============================= */
.table-section:focus-within,
.stats-panel:focus-within {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* =============================
   Footer placeholder for copyright
   ============================= */
footer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
  padding: var(--spacing-md) 0;
}

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