.solar-tool {
  font-family: Poppins, sans-serif;
  background: #f4f9fb;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
}
.solar-tool input {
  margin: 5px 3px;
  padding: 8px;
  border-radius: 4px;
  width: 22%;
}
.solar-tool button {
  margin-top: 10px;
  padding: 8px 16px;
  background: #2c3e50;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}
/* == Calculator Input Fields == */
.solar-tool input[type="text"],
.solar-tool input[type="number"],
.solar-tool select {
  margin: 5px 3px;
  padding: 8px;
  width: calc(25% - 8px);
  border-radius: 4px;
  border: 1px solid #ccc;
  font-size: 14px;
}

/* == Calculator Buttons == */
.solar-tool button {
  margin-top: 12px;
  padding: 8px 16px;
  background: #2c3e50;
  color: white;
  border: none;
  font-weight: 600;
  font-size: 14px;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.solar-tool button:hover {
  background: #1a252f;
}