.bmi-container {
  background: #091825;
  color: #fff;
  padding: 20px;
  border-radius: 8px;
  max-width: 700px;
  margin: auto;
  font-family: sans-serif;
}
.bmi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}
.bmi-grid div {
  display: flex;
  flex-direction: column;
}
.bmi-grid label {
  font-weight: 600;
  margin-bottom: 5px;
}
.bmi-grid input, select {
  padding: 8px;
  border-radius: 4px;
  border: 1px solid #1e293b;
  background: #0f2a3d;
  color: #fff;
}
.bmi-grid small {
  font-size: 12px;
  color: #94a3b8;
  margin-top: 4px;
}
.unit-group {
  display: flex;
  gap: 8px;
}
.bmi-actions {
  text-align: center;
  margin-top: 20px;
}
.bmi-actions button {
  padding: 10px 20px;
  border: none;
  margin: 0 5px;
  border-radius: 5px;
  background: #2563eb;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
}
.bmi-actions button#bmi-reset {
  background: #334155;
}
.bmi-result {
  margin-top: 30px;
  padding: 20px;
  border: 1px solid #1e293b;
  border-radius: 8px;
}
.bmi-score {
  font-size: 42px;
  font-weight: bold;
  margin: 10px 0;
}
.bmi-categories {
  display: flex;
  justify-content: space-around;
  margin-top: 10px;
}
.bmi-categories .cat {
  padding: 6px 10px;
  border-radius: 5px;
  background: #1e293b;
  color: #94a3b8;
}
.bmi-categories .cat.active {
  background: #facc15;
  color: #000;
  font-weight: bold;
}
.bmi-feedback {
  background: #3b3b00;
  color: #f1f1a1;
  padding: 15px;
  border-radius: 5px;
  margin-top: 20px;
}
.bmi-feedback strong {
  font-size: 18px;
  display: block;
  margin-bottom: 5px;
}
.bmi-math {
  font-size: 14px;
  color: #cbd5e1;
  margin-top: 10px;
}
.bmi-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}
.bmi-table th, .bmi-table td {
  padding: 10px;
  border: 1px solid #334155;
}
.bmi-table th {
  background: #1e293b;
  color: #fff;
}
.bmi-table td {
  background: #0f2a3d;
  color: #e2e8f0;
}
.hidden {
  display: none;
}