body {
  font-family: 'Georgia', serif;
  background: #fbf8ef;
  color: #222;
  margin: 0;
  padding: 2rem;
  line-height: 1.6;
}

header, footer {
  text-align: center;
  margin-bottom: 2rem;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

p.tagline {
  font-size: 1.2rem;
  color: #555;
}

main {
  max-width: none;
  margin: 0;
  padding: 0;
}

.cta {
  margin-top: 2rem;
  text-align: center;
}

.cta a {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: #222;
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-weight: bold;
}

footer {
  margin-top: 4rem;
  font-size: 0.9rem;
  color: #888;
}

.lang-switch {
  position: absolute;
  top: 1rem;
  right: 1rem;
}
.grid-wrapper {
  width: 100%;
  overflow-x: auto;
  padding: 1rem 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(80, minmax(10px, 1fr));
  gap: 2px;
  width: 100%;
  box-sizing: border-box;
}

.cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 8px;
}

.cell span {
  font-size: 8px;
  color: #888;
}

.cell input {
  width: 100%;
  aspect-ratio: 1 / 1.2;
  font-size: 14px;
  text-align: center;
  border: none;
  border-bottom: 1px solid #bbb;
  background-color: #eee;
  padding: 0;
  margin: 0;
  transition: background-color 0.3s ease;
}

.cell input.active {
  background-color: #c7f3c0;
}

.cell input.filled {
  background-color: transparent;
  color: #000;
}