/* 1. Use a more-intuitive box-sizing model */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* 2. Remove default margin */
* {
  margin: 0;
}

/* 3. Enable keyword animations */
@media (prefers-reduced-motion: no-preference) {
  html {
    interpolate-size: allow-keywords;
  }
}

body {
  /* 4. Add accessible line-height */
  line-height: 1.5;
  /* 5. Improve text rendering */
  -webkit-font-smoothing: antialiased;
}

/* 6. Improve media defaults */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

/* 7. Inherit fonts for form controls */
input,
button,
textarea,
select {
  font: inherit;
}

/* 8. Avoid text overflows */
p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

/* 9. Improve line wrapping */
p {
  text-wrap: pretty;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  text-wrap: balance;
}

/*
  10. Create a root stacking context
*/
#root,
#__next {
  isolation: isolate;
}

body {
  margin: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center; /* horizontal center */
  align-items: center; /* vertical center */
  font-family: "Open Sans", sans-serif;
}

/* =================== Custom ================ */

.container {
  display: flex;
  gap: 10px;
  flex-direction: column;
}
.title {
  display: flex;
  justify-content: center;
}
.inputbox {
  width: 400px;
  min-height: 60px;
  padding: 10px;

  display: flex;
  flex-direction: column;
  justify-content: flex-end;

  font-size: 1.5rem;
  border: 1px solid #ccc;
  border-radius: 5px;
}

.inputnumbox {
  display: grid;
  grid-template-columns: 100px 100px 100px 100px;
  grid-template-rows: 100px 100px 100px 100px 100px;
}