* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, Arial, sans-serif;
  background: #10130f;
  color: #f4f0e8;
}

.game-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.game-board {
  width: min(520px, 100%);
  border: 1px solid rgba(244, 240, 232, 0.2);
  background: #171b16;
  padding: 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: #95d981;
  text-transform: uppercase;
  font-size: 12px;
}

h1 {
  margin: 0 0 16px;
  font-size: 42px;
  line-height: 1;
}

button {
  width: 100%;
  min-height: 48px;
  border: 0;
  background: #95d981;
  color: #10130f;
  font-weight: 800;
  cursor: pointer;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.card {
  min-height: 80px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(244, 240, 232, 0.25);
  background: #f4f0e8;
  color: #10130f;
  font-size: 28px;
  font-weight: 900;
}