html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, sans-serif;
  background: url("/static/knelogo_web_optimized.png") no-repeat center top;
  background-size: contain;
  background-attachment: fixed;
  background-color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-box {
  background: rgba(255, 255, 255, 0.95);
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  max-width: 400px;
  width: 100%;
  z-index: 1;
}

input, button {
  width: 100%;
  padding: 10px;
  margin: 10px 0;
}

.error {
  color: red;
}

footer {
  text-align: center;
  padding: 10px;
  background: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  font-family: Arial, sans-serif;
  position: relative;
  z-index: 1;
}