/* Standard Calculator — Minimal Overrides */

.standard-calc {
  max-width: 360px;
  margin: 0 auto;
}

.calc-display {
  width: 100%;
  height: 60px;
  font-size: 28px;
  font-weight: 600;
  padding: 10px;
  text-align: right;
  border-radius: 6px;
  background: #f8fafc;
  margin-bottom: 12px;
}

.calc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.calc-grid .btn {
  padding: 14px;
  font-size: 18px;
  border-radius: 6px;
  cursor: pointer;
  background: #e2e8f0;
  transition: 0.1s;
}

.calc-grid .btn:hover {
  background: #cbd5e1;
}

.calc-grid .eq {
  background: #0ea5a4;
  color: #fff;
}

.calc-grid .eq:hover {
  background: #0c8a88;
}

.mem {
  background: #ffe3b3 !important;
}