.container-math-equation-solver {
  font-family: Arial, sans-serif;
  background: #fff0d4;
  padding: 40px 5px;
}
.container-math-equation-solver .card {
  background: #ffffff;
  padding: 30px;
  max-width: 900px;
  margin: auto;
  border-radius: 12px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.281);
}
.container-math-equation-solver h2 {
  text-align: center;
  color: #333;
  margin-bottom: 20px;
}
.container-math-equation-solver .keyboard {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 10px;
  margin-top: 20px;
  
}
@media (max-width: 600px) {
  .container-math-equation-solver .keyboard {
    grid-template-columns: repeat(4, 1fr);
  }
  .container-math-equation-solver button.solve-btn {
    width: 100%;
    margin-top: 10px;
  }
  
}
.container-math-equation-solver .keyboard button {
  padding: 10px;
  font-size: 16px;
  background: #f0f0f0;
  border: 1px solid #adadad;
  border-radius: 5px;
  cursor: pointer;
}
.container-math-equation-solver .keyboard button:hover {
  background: #de9406;
  border: 1px solid #de9406;
  color: white;
}
.container-math-equation-solver .input-area {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.container-math-equation-solver input[type=text] {
  flex: 1;
  padding: 10px;
  font-size: 18px;
  border: 1px solid #ccc;
  border-radius: 5px;
  width: 100%;
}
.container-math-equation-solver button.solve-btn {
  padding: 10px 20px;
  font-size: 18px;
  background-color: #DE9406;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}
.container-math-equation-solver .result {
  margin-top: 20px;
  background: #fff4e0;
  padding: 20px;
  border-left: 5px solid #DE9406;
  font-family: monospace;
}
.container-math-equation-solver .examples {
  margin-top: 30px;
  background: #fff4e0;
  padding: 15px;
  border: 1px dashed #ccc;
}
.container-math-equation-solver .examples strong {
  display: block;
  margin-bottom: 5px;
}