.calculator {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
}

.calc-display {
  background: #1a1a2e;
  color: #fff;
  font-size: 1.5rem;
  padding: 1rem;
  text-align: right;
  border-radius: 8px 8px 0 0;
  min-height: 60px;
  word-break: break-all;
  overflow-wrap: break-word;
}

.calc-buttons {
  padding: 0.5rem;
}

.calc-btn {
  font-size: 1.25rem;
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  margin: 0.25rem;
  transition: background 0.2s;
}

.calc-btn:hover {
  background: #e2e8f0;
}

.calc-btn.op {
  background: #7c3aed;
  color: #fff;
}

.calc-btn.op:hover {
  background: #6d28d9;
}

.calc-btn.sci {
  background: #3b82f6;
  color: #fff;
  font-size: 1rem;
}

.calc-btn.sci:hover {
  background: #2563eb;
}

.columns.is-mobile .column {
  padding: 0.25rem;
}

html[data-theme="dark"] .calculator {
  background: #1e293b;
}

html[data-theme="dark"] .calc-display {
  background: #0f172a;
}

html[data-theme="dark"] .calc-btn {
  background: #334155;
  border-color: #475569;
  color: #f8fafc;
}

html[data-theme="dark"] .calc-btn:hover {
  background: #475569;
}

html[data-theme="dark"] .calc-btn.op {
  background: #7c3aed;
}

html[data-theme="dark"] .calc-btn.sci {
  background: #3b82f6;
}