body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}
header {
    background: #201ec5;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
}
.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 0 20px;
    background: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    padding-bottom: 60px; /* Ensure footer does not overlap */
}
.profile-pic {
    text-align: center;
    margin: 20px 0;
}
.profile-pic img {
    width: 150px;
    height: 150px;
    object-fit: cover;
    
    transition: transform 0.5s;
}



/* --YouTubeサイズ調整-- */
.video {
    position: relative;
    height: 0;
    padding: 30px 0 56.25%;
    overflow: hidden;
    }
    
    .video iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    }


h1, h2 {
    color: #333;
}
p {
    color: #666;
}
.section {
    padding: 20px 0;
}
footer {
    text-align: center;
    padding: 1rem 0;
    background: #333;
    color: #fff;
}
button {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
}
button:hover {
    background-color: #555;
}