/* Reset */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans",
        "Yu Gothic", "Segoe UI", Roboto, sans-serif;
    line-height: 1.8;
    color: #3B2417;
    background: #FFFBF6;
}

/* Layout */
.container {
    max-width: 860px;
    margin: 0 auto;
    padding: 40px 20px 80px;
}

.card {
    background: #ffffff;
    border: 1px solid #F1E6D9;
    border-radius: 24px;
    padding: 32px 24px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}

/* Typography */
h1 {
    font-size: 28px;
    margin: 0 0 8px;
    font-weight: 800;
    color: #3B2417;
}

.updated {
    font-size: 14px;
    color: #8B6A55;
    margin-bottom: 28px;
}

h2 {
    font-size: 20px;
    margin-top: 32px;
    margin-bottom: 12px;
    font-weight: 800;
    color: #7A3D15;
}

h3 {
    font-size: 16px;
    margin-top: 20px;
    margin-bottom: 8px;
    font-weight: 700;
    color: #7A3D15;
}

p {
    font-size: 15px;
    color: #4A3428;
    margin: 8px 0;
}

ul {
    padding-left: 1.4em;
    margin: 8px 0 0;
}

li {
    font-size: 15px;
    color: #4A3428;
    margin-bottom: 6px;
}

/* Links */
a {
    color: #B55A20;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Note box */
.note {
    background: #FFF4EA;
    border: 1px solid #FFD6B8;
    border-radius: 16px;
    padding: 14px 16px;
    margin-top: 20px;
    font-size: 14px;
    color: #7A3D15;
}

.footer {
    text-align: center;
    font-size: 13px;
    color: #9A8477;
    padding: 24px 16px 40px;
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 24px 16px 60px;
    }

    .card {
        padding: 24px 16px;
        border-radius: 20px;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 18px;
    }
}