* {
  margin: 0;
  padding: 0;
  font-family: "montserrat", sans-serif;
  box-sizing: border-box;
}
h1 {
  text-align: center; /* Menyelaraskan teks ke tengah */
  color: #ffffff; /* Warna teks */
  margin-bottom: 40px; /* Jarak antara judul dan kalkulator */
}
body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: #091921;
}

.kalkulator {
  position: relative;
  display: grid;
}
.kalkulator .value {
  grid-column: span 4;
  height: 150px;
  width: 240px;
  text-align: right;
  border: none;
  outline: none;
  padding: 10px;
  font-size: 32px;
  background: #ffffff;
  border-radius: 8px; /* Ubah nilai sesuai kebutuhan */
}
.kalkulator span {
  display: grid;
  width: 60px;
  height: 60px;
  color: #fff;
  background: #0c2835;
  place-items: center;
  border: 8px inset rgba(0, 0, 0, 0.1);
  border-radius: 8px; /* Ubah nilai sesuai kebutuhan */
}
.kalkulator span:active {
  background: #a2ac9e;
  color: #111;
}
.kalkulator span.operator {
  font-size: 20px;
  font-weight: bold;
  color: #fa6e3b;
}
.kalkulator span.clear {
  grid-column: span 1;
  width: 60px;
  font-weight: bold;
  color: #fa6e3b;
}
.kalkulator span.delete {
  grid-column: span 1;
  width: 60px;
  font-weight: bold;
  color: #fa6e3b;
}
.kalkulator span.percent {
  grid-column: span 1;
  width: 60px;
  font-size: 18px;
  font-weight: bold;
  color: #fa6e3b;
}
.kalkulator span.plus {
  grid-row: span 1;
  height: 60px;
  font-size: 20px;
  font-weight: bolder;
  color: #fa6e3b;
}
.kalkulator span.equal {
  font-size: 20px;
  font-weight: lighter;
  background: #f7571d;
}
footer {
  text-align: right; /* Menyelaraskan teks ke tengah */
  color: #ffffff; /* Warna teks */
  margin-top: 60px; /* Jarak atas dari kalkulator */
  font-size: 14px; /* Ukuran font */
}