.scientific-options{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
  flex-wrap:wrap;
}

.angle-mode-label{
  font-weight:600;
}

.angle-mode-select{
  height:38px;
  border:1px solid #ccc;
  border-radius:8px;
  padding:0 10px;
  font-size:0.95rem;
  background:#fff;
  outline:none;
}

.angle-mode-select:focus{
  border-color:#007bff;
}

.scientific-input{
  min-height:48px;
}

.scientific-input:empty::before{
  content:attr(placeholder);
  color:#999;
  pointer-events:none;
}

.solve-button:hover{
  background-color:#2980b9;
}