/* styles.css — tampilan kalkulator sederhana */

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #f3f4f6;
  font-family: system-ui, sans-serif;
}

.kalkulator {
  width: 240px;
  padding: 16px;
  background-color: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.layar {
  display: block;
  min-height: 48px;
  margin-bottom: 12px;
  padding: 10px 12px;
  background-color: #111827;
  color: #f9fafb;
  font-size: 2rem;
  text-align: right;
  white-space: nowrap;
  overflow-x: auto;
  border-radius: 8px;
}

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

.tombol {
  padding: 12px 0;
  font-size: 1.25rem;
  border: none;
  border-radius: 8px;
  background-color: #e5e7eb;
  cursor: pointer;
}

.tombol:hover {
  background-color: #d1d5db;
}

.tombol--operasi {
  background-color: #fde68a;
}

.tombol--sama-dengan {
  background-color: #86efac;
}

.tombol--hapus {
  background-color: #fecaca;
}

.tombol--nol {
  grid-column: span 2;
}