body {
  background-color: #f3f4f6;
  font-family: Arial, sans-serif;
}
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}
h1 {
  text-align: center;
  font-size: 24px;
  margin-bottom: 20px;
  color: #ffffff !important;
}
.form-group {
  margin-bottom: 15px;
}
label {
  display: block;
  font-weight: bold;
  margin-bottom: 5px;
  color: #ffffff !important;
}
select, input, textarea {
  width: 100%;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
  color: #000000;
}
.error {
  background-color: #fee2e2;
  color: #dc2626;
  padding: 10px;
  border-radius: 4px;
  margin-bottom: 15px;
  text-align: center;
}
.error.hidden {
  display: none;
}
.item {
  background-color: white;
  padding: 15px;
  border: 1px solid #ccc;
  border-radius: 4px;
  margin-bottom: 15px;
  position: relative;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
}
.item-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  justify-content: center;
}
.hidden {
  display: none;
}
.remove-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: #ef4444;
  color: white;
  border: none;
  border-radius: 4px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.buttons {
  display: flex;
  justify-content: center;
  margin-top: 20px;
  gap: 10px; /* اضافه کردن فاصله 10px بین دکمه‌ها */
}
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
.btn-add {
  background-color: #3b82f6;
  color: white;
}
.btn-submit {
  background-color: #22c55e;
  color: white;
}
.btn-disabled {
  background-color: #d1d5db;
  color: #9ca3af;
  cursor: not-allowed;
}
.btn-group {
  display: flex;
  gap: 10px;
}