body {
  margin: 0;
  font-family: 'Quicksand', sans-serif;
  background-color: #f9f3ea;
  color: #333;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  flex-direction: column;
}

.container {
  max-width: 700px;
  padding: 20px;
  text-align: center;
}

.tablero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(50px, 1fr));
  gap: 10px;
  margin: 20px auto;
  max-width: 100%;
}

.celda {
  aspect-ratio: 1 / 1;
  background: #fff;
  border: 2px solid #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  border-radius: 6px;
  transition: background-color 0.2s;
  user-select: none;
}

.celda.seleccionada {
  background-color: #d280a2;
  color: #fff;
}

button {
  background-color: #d280a2;
  color: white;
  border: none;
  padding: 10px 20px;
  margin-top: 15px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  padding: 30px;
  text-align: center;
  z-index: 1000;
  display: none;
  max-width: 80%;
}

.modal.active {
  display: block;
}