body {
  font-family: sans-serif;
  background: #121213;
  color: white;
  text-align: center;
  padding-bottom: 60px;
  margin: 0;
}

.board {
  display: grid;
  grid-template-rows: repeat(6, 1fr);
  gap: 10px;
  margin: 20px auto;
  width: max-content;
}

.row {
  display: grid;
  grid-template-columns: repeat(5, 60px);
  gap: 5px;
}

.tile {
  width: 60px;
  height: 60px;
  font-size: 2em;
  text-align: center;
  background: #3a3a3c;
  border: 2px solid #555;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
}

.correct {
  background: #538d4e !important;
}

.present {
  background: #b59f3b !important;
}

.absent {
  background: #3a3a3c !important;
  opacity: 0.5;
}

.keyboard {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.key-row {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  justify-content: center;
}

.key {
  width: 40px;
  height: 60px;
  font-size: 1.2em;
  background: #818384;
  border: none;
  border-radius: 4px;
  color: white;
  cursor: pointer;
  user-select: none;
}

.key.correct {
  background: #538d4e !important;
}

.key.present {
  background: #b59f3b !important;
}

.key.absent {
  background: #3a3a3c !important;
  opacity: 0.5;
}

.key.enter, .key.delete {
  width: 60px;
}

input[type="text"] {
  margin-top: 20px;
  padding: 10px;
  font-size: 1.2em;
  width: 200px;
  text-align: center;
}

button {
  padding: 10px 0px;
  font-size: 1em;
  margin-left: 10px;
  cursor: pointer;
}

/* ======= ✅ レスポンシブ対応 ========== */
@media (max-width: 600px) {
  .row {
    grid-template-columns: repeat(5, 55px);
  }

  .tile {
    width: 50px;
    height: 50px;
    font-size: 1.4em;
  }

  .key {
   margin-left: 0;
        width: 30px;
        height: 35px;
        font-size: 15px;
        display: flex;
        justify-content: center;
    }
    body {
      padding-bottom: 0;
    }

  .key.enter, .key.delete {
    width: 45px;
  }

  input[type="text"] {
    width: 160px;
    font-size: 1em;
  }

  button {
    font-size: 0.9em;
    padding: 8px;
  }
}