body {
  margin: 0;
  background: url('../gambar/background.jpg') no-repeat center center fixed;
  background-size: cover;
  font-family: Arial, sans-serif;
  position: relative;
  z-index: 0;
}

#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  background: rgba(15, 47, 64, 0.6); /* layer gelap semi transparan di atas gambar */
  z-index: -1;
  top: 0;
  left: 0;
}

.login-box {
  background: rgba(255, 255, 255, 0.95); /* putih transparan agar teks tetap terbaca */
  padding: 30px 20px;
  border-radius: 20px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.login-box img {
  max-width: 100px;
  height: auto;
}

.form-control {
  border-radius: 10px;
}

.btn-login {
  background-color: #0f2f40;
  color: #fff;
  font-weight: bold;
  width: 100%;
  border: none;
  border-radius: 10px;
  transition: background-color 0.3s ease;
}

.btn-login:hover {
  background-color: #145e7a;
}

.input-group-text {
  background-color: #0f2f40;
  color: white;
}

.form-control:focus {
  border-color: #0f2f40;
  box-shadow: none;
}