body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f5f5f5;
  color: #333;
}
header {
  background: #ffffff;
  border-bottom: 2px solid #e5e5e5;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
header img.logo-small {
  height: 40px;
}
header nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #333;
  font-weight: bold;
}
header nav a:hover {
  color: #c00;
}
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}
.login-container {
  background: #fff;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  text-align: center;
  width: 100%;
  max-width: 450px; /* breder */
}
.login-container img.logo {
  height: 60px;
  margin-bottom: 20px;
}
.login-container input {
  display: block;
  width: 100%;
  padding: 12px;
  margin-bottom: 20px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 16px;
}
.login-container button {
  background: #c00;
  color: #fff;
  border: none;
  padding: 12px 25px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  font-weight: bold;
}
.login-container button:hover {
  background: #900;
}
.error {
  color: red;
  margin-bottom: 10px;
}