/* Basic styles for the Simple Calculator */
.sccs-calculator {
  max-width: 320px;
  margin: 12px 0;
  padding: 12px;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.04);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji','Segoe UI Emoji';
}

.sccs-display {
  margin-bottom: 10px;
}

.sccs-display-input {
  width: 100%;
  font-size: 28px;
  text-align: right;
  padding: 10px 12px;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  background: #f8fafc;
}

.sccs-keys {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.sccs-key {
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 12px 8px;
  font-size: 18px;
  background: #f3f4f6;
  cursor: pointer;
  transition: transform .04s ease, background .15s ease;
}

.sccs-key:hover { background: #e5e7eb; }
.sccs-key:active { transform: translateY(1px); }

.sccs-key.operator { background: #e0f2fe; }
.sccs-key.equals { background: #d1fae5; }
.sccs-key.wide { grid-column: span 2; }