/* Bestehende Farben */
:root {
  --rot: #000099;
  --grau-dunkel: #333333;
  --grau-hell: #CCCCCC;

  /* Standard-Hintergründe / Textfarben */
  --bg-page: #ffffff;
  --bg-left-column: #ffffff;
  --bg-right-column: #f8f9fa;
  --text-color: #000000;
  --fieldset-border: #a2a9b1;
  --img-border: #ccc;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg-page: #121212;
  --bg-left-column: #1e1e1e;
  --bg-right-column: #2a2a2a;
  --text-color: #e0e0e0;
  --fieldset-border: #555;
  --img-border: #444;
}

/* Container & Boxen */
.container {
  display: grid;
  grid-template-columns: repeat(auto-fill, 350px);
  gap: 1rem;
  justify-content: center;
  padding: 1rem;
}

.box {
  width: 350px;
  height: 350px;
  background-color: var(--rot); /* bleibt wie bisher */
  color: white; /* bleibt weiß, Dark Mode nicht nötig */
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  text-align: center;
}

.portrait-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem;
}

.kachel a:hover {
  color: #000000;
  text-decoration: underline;
  transform: scale(1.05);
  transition: transform 0.3s, background-color 0.3s;
}

/* Page Layout */
.page-container {
  display: flex;
  flex-direction: row;
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px;
  background-color: var(--bg-page);
  color: var(--text-color);
}

.left-column {
  flex: 1;
  max-width: 400px;
  padding: 15px;
  background: var(--bg-left-column);
  border: 1px solid var(--fieldset-border);
  margin-right: 15px;
}

.right-column {
  flex: 2;
  padding: 10px;
}

.right-column fieldset {
  border: 1px solid var(--fieldset-border);
  background: var(--bg-right-column);
  margin-bottom: 1em;
  padding: 0.5em;
}

.right-column legend {
  font-size: 1em;
  font-weight: bold;
  padding: 0 5px;
}

.right-column img {
  margin: 5px;
  border: 1px solid var(--img-border);
  background: var(--bg-right-column);
}

.right-column img:hover {
  border-color: #36c;
}

/* Responsive */
@media (max-width: 900px) {
  .page-container {
    flex-direction: column;
  }
  .left-column {
    max-width: 100%;
    margin-right: 0;
    margin-bottom: 20px;
  }
}