/* フォントの取得 */
@font-face {
    font-family: 'DotGothic16';
    src: url('../assets/fonts/DotGothic16-Regular.ttf') format('truetype');
}

/* 背景、文字などのサイズと配置調整 */
body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    text-align: center;
    color: red;
    background-image: url('../assets/images/Background.png');
    background-size: cover;
    background-position: center;
    font-family: 'DotGothic16', sans-serif; /* フォント適応 */
    overflow: hidden;
}

/* タイトル文字エリア */
.text-box {
    background-color: rgba(0, 0, 64, 0.6);
    border: 4px solid #00ffff;
    border-radius: 10px;
    padding: 50px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    max-width: 500px;
}

/* タイトルサイズと色 */
h1 {
    font-size: 60px;
    color: crimson;
    margin-bottom: 0px;
}

/* 文字サイズと色 */
p {
    font-size: 25px;
    color: honeydew;
    margin-bottom: 100px;
}

label {
    font-size: 20px;
    color: honeydew;
    margin-bottom: 20px;
}

/* 共通ボタン（タイトル、スタート、遊び方）のスタイル */
.title_button{ 
    margin-top: 20px;
    font-size: 20px;
    padding: 10px 20px;
    border: 2px solid #00ffff;
    background-color: #004466;
    color: #fff;
    border-radius: 5px;
    cursor: pointer;
    position: relative; 
    z-index: 9999; 
}

/* 説明画面表示オフ */
.hidden {
    display: none !important;
}

/* 説明画面のCanvasレイアウト */
#explanationcanvas {
    position: absolute;
    border: 4px solid white;    
    top: 50%;
    left: 50%;
    width: 600px;
    height: 90%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.5); 
    border: 2px solid #00ffff;
    overflow: hidden;    
    z-index: 1;
}

h2 {
    font-size: 60px;
    color: crimson;
    margin-bottom: 0px;
    cursor: pointer;
    z-index: 9999; 
    position: absolute;
    top: 3%; 
    left: 50%;
    transform: translateX(-50%);
}

h3 {
    font-size: 30px;
    color: rgb(255, 255, 255);
    margin-bottom: 20px;
    cursor: pointer;
    z-index: 9999; 
    position: absolute;
    top: 20%; 
    left: 50%;
    transform: translateX(-50%);
}

h4 {
    font-size: 30px;
    color: rgb(255, 255, 255);
    margin-bottom: 20px;
    cursor: pointer;
    z-index: 9999; 
    position: absolute;
    top: 30%; 
    left: 50%;
    transform: translateX(-50%);
}

h5 {
    font-size: 30px;
    color: rgb(255, 255, 255);
    margin-bottom: 20px;
    cursor: pointer;
    z-index: 9999; 
    position: absolute;
    top: 40%; 
    left: 50%;
    transform: translateX(-50%);
}

h6 {
    font-size: 30px;
    color: rgb(255, 255, 255);
    cursor: pointer;
    z-index: 9999; 
    position: absolute;
    top: 50%; 
    left: 50%;
    transform: translateX(-50%);
}

.return_button { 
    margin-bottom: 20px;
    font-size: 20px;
    padding: 10px 20px;
    border: 2px solid #00ffff;
    background-color: #004466;
    color: #fff;
    border-radius: 5px;
    cursor: pointer;
    z-index: 9999; 
    position: absolute;
    bottom: 10%; 
    left: 50%;
    transform: translateX(-50%);
}

#error_warning {
    position: absolute;
    border: 4px solid white;    
    top: 50%;
    left: 50%;
    width: 600px;
    height: 90%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.5); 
    border: 2px solid #00ffff;
    overflow: hidden;    
    z-index: 1;
}