.calculator {
  display: flex;
  gap: 20px;
  margin-bottom: 40px;
}

.form {
  flex: 1;
}

.amortization-table {
  margin-top: 40px;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 10px;
  text-align: left;
  border-bottom: 1px solid #333;
  color: #fff;
}

body.light-mode th, body.light-mode td {
    border-bottom: 1px solid #ddd;
    color: #333;
}

thead {
  background: rgba(255, 255, 255, 0.1);
}

body.light-mode thead {
    background: #f0f2f5;
}