body {
  background: #f5f6fa;
  font-family: 'Roboto', Arial, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
}
.container {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(60,72,88,0.12);
  padding: 48px 32px 32px 32px;
  text-align: center;
  max-width: 400px;
}
h1 {
  font-weight: 500;
  color: #222;
  margin-bottom: 32px;
}
.material-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #1976d2;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 16px 32px;
  font-size: 1.2rem;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(25,118,210,0.08);
  transition: background 0.2s, box-shadow 0.2s;
  outline: none;
}
.material-btn:hover, .material-btn:focus {
  background: #1565c0;
  box-shadow: 0 4px 16px rgba(25,118,210,0.16);
}
.material-icons {
  font-size: 1.5em;
}