/* --- Authentication Pages Premium UI --- */
.auth-container {
  min-height: 100vh;
  min-height: 100dvh;
  background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05), 0 5px 15px rgba(0, 0, 0, 0.03);
  transform: translateY(0);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.auth-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08), 0 8px 20px rgba(0, 0, 0, 0.04);
}

.auth-card-header {
  padding: 40px 30px 20px;
}

.auth-card-header h2 {
  color: #2c3e50;
  letter-spacing: -0.5px;
}

.auth-card-body {
  padding: 0 30px 40px;
}

.auth-btn {
  background: linear-gradient(135deg, #008069, #00a884);
  border: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 128, 105, 0.3);
}

.auth-btn:hover, .auth-btn:focus {
  background: linear-gradient(135deg, #006b58, #009171);
  box-shadow: 0 6px 16px rgba(0, 128, 105, 0.4);
  transform: translateY(-2px);
}

.auth-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 128, 105, 0.3);
}

.input-group-text {
  border-color: #e9ecef;
}

.form-control:focus {
  box-shadow: none;
  border-color: #008069;
}

.input-group:focus-within .input-group-text,
.input-group:focus-within .form-control {
  border-color: #008069;
  box-shadow: 0 0 0 0.2rem rgba(0, 128, 105, 0.15);
}

.input-group:focus-within .input-group-text svg {
  color: #008069 !important;
}

/* Hide header for login/signup pages if necessary, but Layout.cshtml handles this by not showing header if no UserId */