@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono&display=swap');

:root {
  --win98-gray: #c0c0c0;
  --win98-gray-dark: #808080;
  --win98-gray-light: #ffffff;
  --win98-navy: #000080;
  --win98-white: #ffffff;
  --win98-black: #000000;
}

body {
  margin: 0;
  padding: 0;
  background: var(--win98-gray);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  overflow: hidden;
}

.grid,
.nested-grid {
  display: grid;
  gap: 2px;
  padding: 0;
  background: var(--win98-gray);
  box-sizing: border-box;
  max-width: 100%;
  max-height: 100%;
}

.grid {
  width: 90vmin;
  height: 90vmin;
  border: 1px solid var(--win98-gray);
  overflow: hidden;
}

.nested-grid {
  width: 100%;
  height: 100%;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
}

.grid-cell {
  background: var(--win98-gray);
  border: 1px solid;
  border-color: var(--win98-gray-light) var(--win98-gray-dark) var(--win98-gray-dark) var(--win98-gray-light);
  min-height: 0;
  min-width: 0;
  padding: 2px;
  box-shadow: 1px 1px 0 rgba(0, 0, 0, 0.2);
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

.grid-cell:hover {
  opacity: 0.9;
}