body {
  font-family: system-ui, sans-serif;
  background: #0d4d2e;
  color: #fff;
  margin: 0;
  text-align: center;
}

/* === Kopfbereich === */
header {
  background: #07331f;
  padding: 20px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

h1 {
  color: #ffe77a;
  margin: 0;
}

header p {
  color: #cce3d3;
  margin-top: 8px;
}

/* === Hauptbereich === */
main {
  margin: 50px auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
  max-width: 1000px;
}

/* === Tool-Karten === */
.tool-card {
  background: #14532d;
  border: 3px solid #1a4731;
  border-radius: 14px;
  width: 260px;
  height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  color: #fff;
  transition: transform 0.25s ease, background 0.25s ease;
  box-shadow: 0 3px 8px rgba(0,0,0,0.4);
}

.tool-card:hover {
  background: #1e6b3e;
  transform: scale(1.05);
}

.tool-card h2 {
  color: #ffefc1;
  margin: 0 0 8px 0;
}

.tool-card p {
  color: #d4e9d6;
  font-size: 0.9em;
  margin: 0;
}

/* Deaktivierte Karte (noch nicht verfügbar) */
.tool-card.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* === Fußzeile === */
footer {
  margin-top: 60px;
  color: #b4d4b8;
  font-size: 0.9em;
  padding-bottom: 20px;
}