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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: #1d1d1f;
    background: #fafafa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    max-width: 640px;
    margin: 0 auto;
    padding: 4rem 1.5rem 2rem;
    flex: 1;
}

.hero {
    margin-bottom: 3rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.tagline {
    font-size: 1.1rem;
    color: #555;
    margin-bottom: 1.5rem;
}

.intro {
    font-size: 1.05rem;
    color: #333;
    margin-bottom: 1.5rem;
}

.links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.links a {
    color: #0066cc;
    text-decoration: none;
    font-weight: 500;
}

.links a:hover {
    text-decoration: underline;
}

h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

section {
    margin-bottom: 2.5rem;
}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    padding: 0.3rem 0;
    color: #333;
}

footer {
    text-align: center;
    padding: 2rem 1.5rem;
    color: #888;
    font-size: 0.85rem;
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    main {
        padding-top: 2.5rem;
    }
}