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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background-color: #f7f7f7;
    color: #222;
    line-height: 1.6;
}

main {
    max-width: 820px;
    margin: 40px auto;
    padding: 0 20px;
}

h1 {
    font-size: 2.2rem;
    margin-bottom: 32px;
    font-weight: 700;
}

h2 {
    font-size: 1.2rem;
    margin: 32px 0 16px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #555;
}

article {
    background: #ffffff;
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 16px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

time {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: #666;
    margin-bottom: 8px;
}

ul {
    margin-left: 20px;
}

li {
    margin-bottom: 6px;
}

hr {
    border: none;
    border-top: 1px solid #ddd;
    margin: 40px 0;
}

#unreleased {
    color: #c0392b;
}

section[aria-labelledby="unreleased"] ul {
    background: #fff3f2;
    border: 1px solid #ffd2cf;
    border-radius: 8px;
    padding: 16px 20px;
}

section[aria-labelledby="unreleased"] li {
    margin-bottom: 8px;
}

@media (max-width: 600px) {
    main {
        margin: 24px auto;
    }

    h1 {
        font-size: 1.8rem;
    }
}