/* 基本スタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    overflow: hidden;
    touch-action: none; /* スマホでのスクロール防止 */
}

#game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    background-color: skyblue;
}

#game-area {
    position: relative;
    width: 100%;
    height: 80%;
    overflow: hidden;
}

/* プレイヤー機 */
#player {
    position: absolute;
    width: 50px;
    height: 30px;
    background-color: blue;
    top: 50px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

/* 地面 */
#ground {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 50px;
    background-color: green;
}

/* 爆弾 */
.bomb {
    position: absolute;
    width: 10px;
    height: 15px;
    background-color: black;
    border-radius: 50%;
    z-index: 5;
}

/* 敵 */
.enemy {
    position: absolute;
    width: 40px;
    height: 20px;
    background-color: red;
    bottom: 50px; /* 地面の上 */
    z-index: 8;
}

/* UI要素 */
#score-display {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 20px;
    color: white;
    background-color: rgba(0, 0, 0, 0.5);
    padding: 5px 10px;
    border-radius: 5px;
    z-index: 20;
}

#controls {
    position: absolute;
    bottom: 10px;
    width: 100%;
    text-align: center;
    z-index: 20;
}

#start-button {
    padding: 10px 20px;
    font-size: 18px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

#instructions {
    margin-top: 10px;
    color: white;
    background-color: rgba(0, 0, 0, 0.5);
    padding: 5px;
    border-radius: 5px;
    display: inline-block;
}

#game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    z-index: 100;
}

#game-over h1 {
    font-size: 3em;
    margin-bottom: 10px;
}

#game-over p {
    font-size: 1.5em;
    margin-bottom: 10px;
}

#game-over button {
    padding: 10px 20px;
    font-size: 1.2em;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    #player {
        width: 40px;
        height: 24px;
    }
    
    .enemy {
        width: 30px;
        height: 15px;
    }
    
    #instructions {
        font-size: 14px;
    }
}