html, body {
  height: 100%;
}
body {
  min-height: 100vh;
  background: url('../assets/images/wallpaper.png') no-repeat center center fixed;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
}
.glass-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  color: #111;
  width: 100%;
  max-width: 420px;
}
.brand-title {
  color: #111;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.form-label, .form-text {
  color: #222 !important;
}
.form-control::placeholder {
  color: #666;
}
.form-control, .form-control:focus {
  color: #111;
  background-color: #fff;
  border-color: rgba(0,0,0,0.2);
}
.btn-primary {
  background: linear-gradient(135deg, #0d6efd 0%, #5a8cff 100%);
  border: none;
}
.btn-primary:disabled {
  opacity: 0.7;
}