body {
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.5;
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
    color: #333;
    background-color: #f4f4f4;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

h1 {
    margin-bottom: 1rem;
}

.links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #fff;
    border: 1px solid #ccc;
    text-decoration: none;
    color: #333;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background: #eee;
}

#email-reveal,
#bio-section,
.video-item {
    background: #fff;
    border: 1px solid #ccc;
    padding: 1.5rem;
    margin: 1rem auto;
    width: 100%;
    box-sizing: border-box;
    text-align: left;
}

#email-reveal {
    font-weight: bold;
    text-align: center;
}

#bio-section {
    margin-top: 1.5rem;
}

#bio-section h3 {
    margin-top: 0;
    font-size: 1.1rem;
    border-bottom: 1px solid #eee;
    padding-bottom: 0.25rem;
}

#bio-section ul {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
}

#bio-section li {
    margin-bottom: 0.5rem;
}

.video-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.video-item {
    margin: 0;
    /* Already centered by video-list/body constraints */
}

.video-item h2 {
    margin: 0 0 0.5rem 0;
    font-size: 1.25rem;
}

.video-item p {
    margin: 0 0 1rem 0;
    color: #666;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 */
    height: 0;
    overflow: hidden;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}