body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #181a20;
    color: #e0e0e0;
    margin: 0;
    padding: 0;
}

header {
    background: linear-gradient(90deg, #232946 0%, #1a1a2e 100%);
    color: #fff;
    padding: 2rem 0 1rem 0;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

main {
    max-width: 700px;
    margin: 2rem auto;
    background: #232946;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
    padding: 2rem;
}

section {
    margin-bottom: 2rem;
}

h1, h2 {
    font-weight: 700;
    margin-bottom: 0.5rem;
}

h2 {
    color: #eebbc3;
    margin-top: 1.5rem;
}

ul {
    padding-left: 1.2rem;
}

a {
    color: #eebbc3;
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #ffd6e0;
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 1rem 0;
    background: #1a1a2e;
    color: #e0e0e0;
    margin-top: 2rem;
    border-top: 1px solid #232946;
    font-size: 0.95rem;
    border-radius: 0 0 12px 12px;
}

.uebungen {
  padding: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.uebungen h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.uebungen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.uebungen-grid a {
  background-color: #f0f0f0;
  padding: 1rem;
  border-radius: 0.5rem;
  text-decoration: none;
  color: #333;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  transition: background-color 0.3s, transform 0.2s;
}

.uebungen-grid a:hover {
  background-color: #d1eaff;
  transform: translateY(-3px);
}