* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: #333;
    background: #fff;
    max-width: 700px;
    margin: 0 auto;
    padding: 0 2rem;
}

header {
    padding: 2rem 0 1rem;
    border-bottom: 1px solid #e0e0e0;
    margin-bottom: 3rem;
}

.logo {
    display: inline-block;
}

.logo img {
    height: 40px;
    width: auto;
}

main {
    padding-bottom: 4rem;
}

.intro {
    margin-bottom: 4rem;
}

.intro h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #000;
}

.tagline {
    font-size: 1.1rem;
    color: #666;
}

.content {
    font-size: 1rem;
}

.content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 3rem;
    margin-bottom: 1rem;
    color: #000;
}

.content h2:first-of-type {
    margin-top: 0;
}

.content p {
    margin-bottom: 1.5rem;
    color: #444;
}

.content a {
    color: #000;
    text-decoration: underline;
    text-decoration-color: #ccc;
    text-underline-offset: 3px;
}

.content a:hover {
    text-decoration-color: #666;
}

footer {
    padding: 3rem 0;
    border-top: 1px solid #e0e0e0;
    margin-top: 4rem;
    text-align: center;
    color: #999;
    font-size: 0.9rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.social-links a {
    color: #666;
    transition: color 0.2s;
    display: inline-block;
}

.social-links a:hover {
    color: #000;
}

@media (max-width: 768px) {
    body {
        padding: 0 1.5rem;
    }

    .intro h1 {
        font-size: 2rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .content h2 {
        font-size: 1.3rem;
    }
}