:root {
  --farbe-primary: #4F46E5;
  --farbe-hintergrund: #F9FAFB;
  --farbe-text: #1F2937;
  --farbe-rand: #E5E7EB;
  --farbe-erfolg: #10B981;
  --farbe-warnung: #F59E0B;
  --farbe-fehler: #EF4444;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--farbe-hintergrund);
  color: var(--farbe-text);
}

header {
  background: white;
  border-bottom: 1px solid var(--farbe-rand);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header h1 {
  font-size: 18px;
  margin: 0;
}

nav {
  display: flex;
  gap: 20px;
}

nav a {
  color: var(--farbe-text);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

nav a:hover,
nav a.aktiv {
  border-bottom-color: var(--farbe-primary);
  color: var(--farbe-primary);
}

main {
  max-width: 960px;
  margin: 32px auto;
  padding: 0 24px;
}

.karte {
  background: white;
  border: 1px solid var(--farbe-rand);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.karte h2 {
  margin-top: 0;
  font-size: 16px;
}

form {
  display: grid;
  gap: 12px;
}

label {
  font-size: 13px;
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

input, textarea, select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--farbe-rand);
  border-radius: 6px;
  font-size: 14px;
}

button {
  background: var(--farbe-primary);
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  justify-self: start;
}

button:hover {
  opacity: 0.9;
}

button.sekundaer {
  background: transparent;
  color: var(--farbe-text);
  border: 1px solid var(--farbe-rand);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--farbe-rand);
  font-size: 14px;
}

th {
  font-size: 12px;
  text-transform: uppercase;
  color: #6B7280;
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.tag.gruen { background: #D1FAE5; color: #065F46; }
.tag.gelb { background: #FEF3C7; color: #92400E; }
.tag.rot { background: #FEE2E2; color: #991B1B; }

.zwei-spalten {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 600px) {
  .zwei-spalten {
    grid-template-columns: 1fr;
  }
}