.grid-center {
  padding: 1rem;
}

.grid-center h1 {
  margin: 0 0 1rem 0;
  text-align: center;
}

.grid-select {
  text-align: center;
}

.grid-select h2 {
  font-style: italic;
  color: #003366;
  text-shadow: 0 0 12px rgba(0,51,102,0.85), 0 0 24px rgba(0,51,102,0.45);
  margin: 0;
}

/* allgemeine Controls / Buttons */
.controls {
  text-align: center;
  margin-top: 1rem;
}

.controls.controls-top {
  margin-top: 4rem; /* entspricht früher 66px */
  margin-bottom: 1.5rem;
}

.btn {
  margin: 0 .5rem;
  padding: .5rem 1rem;
  border: 1px solid #888;
  border-radius: 4px;
  background: #f0f0f0;
  color: #000;
  text-decoration: none;
  display: inline-block;
}

.btn-large {
  font-size: 1.8rem;
}

/* spezieller Login-Button mit mehrzeiliger Beschriftung */
.login-btn {
  display: inline-block;
  width: 320px;
  white-space: normal;
  text-align: center;
  margin: 0 .5rem;
  padding: .5rem 1rem;
}

.login-btn span {
  display: block;
}