styles.css

:root {
  --primary-font: "Lucida Sans", "Lucida Grande", "Lucida Sans Unicode", Geneva,
    Verdana, sans-serif;
  --primary-color: #f0f0f0;
  --accent-color: #000;
  --border-radius: 0.5rem;
  --transition-duration: 0.3s;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

h1 {
  text-align: center;
  font-size: 2.5rem;
  font-family: var(--primary-font);
  margin: 1rem 0;
}

body,
main {
  background-color: var(--primary-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: 1rem 0;
}

#grid-container {
  display: flex;
  flex-direction: column;
  width: 87vw;
  height: 87vh;
  max-width: 87vh;
  max-height: 87vw;
  border: 2px solid var(--accent-color);
  overflow: hidden;
}

.row {
  display: flex;
  flex: 1;
}

.cell {
  flex: 1;
  border: 1px solid var(--accent-color);
  transition: background-color var(--transition-duration),
    opacity var(--transition-duration);
  cursor: unset;
}

#controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

button {
  font-size: 1.5rem;
  padding: 0.5rem 1rem;
  border: 2px solid var(--accent-color);
  border-radius: var(--border-radius);
  background-color: var(--primary-color);
  cursor: pointer;
  transition: background-color var(--transition-duration),
    transform var(--transition-duration);
}

button:hover {
  background-color: #e0e0e0;
  transform: scale(1.05);
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  button {
    font-size: 1.2rem;
  }
}