body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #f4f6f9;
  margin: 0;
  padding: 20px;
  color: #333;
}

.form-container, .products-container {
  max-width: 600px;
  margin: 30px auto;
  background: #ffffff;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

label {
  display: block;
  margin-top: 12px;
  font-weight: 600;
  font-size: 0.9rem;
}

input, textarea {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border: 1px solid #ccc;
  border-radius: 5px;
  box-sizing: border-box;
}

input[readonly] {
  background-color: #e9ecef;
}

.row {
  display: flex;
  gap: 10px;
}

button, .btn-primary {
  display: inline-block;
  width: 100%;
  background-color: #0066cc;
  color: white;
  padding: 12px;
  border: none;
  border-radius: 5px;
  margin-top: 20px;
  text-align: center;
  text-decoration: none;
  font-weight: bold;
  cursor: pointer;
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-top: 20px;
}

.product-card {
  border: 1px solid #e2e8f0;
  padding: 15px;
  border-radius: 8px;
  background: #fafafa;
}

/* Real-time Validation Styles */
.error-msg {
  color: #dc3545;
  font-size: 0.8rem;
  margin-top: 2px;
  display: block;
  min-height: 18px; /* Keeps the layout from jumping when text appears */
}

input.input-error {
  border: 1px solid #dc3545;
  background-color: #fff8f8;
  outline: none;
}