/* General Styles */
.concrete-calculator .section-title {
  text-align: center;
  margin-bottom: 30px;
  font-size: 2rem;
  color: var(--primary-color);
}

.calculator-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 20px;
  background-color: #f9f9f9;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.form-group {
  margin-bottom: 15px;
}

.input-with-dropdown {
  display: flex;
  gap: 10px;
}

.input-with-dropdown input {
  flex: 1;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}

.input-with-dropdown select {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}

.calculator-toolbar {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.calculator-toolbar button {
  padding: 10px 20px;
  border: none;
  background-color: var(--primary-color);
  color: #fff;
  cursor: pointer;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.calculator-toolbar button:hover {
  background-color: var(--primary-hover-color);
}

.output-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.output-table th,
.output-table td {
  border: 1px solid #ddd;
  padding: 10px;
  text-align: left;
}

.output-table th {
  background-color: #f9f9f9;
}



@media (max-width: 768px) {
  .card-item {
      width: 100%; /* Single column layout for smaller screens */
  }
}