:root {
    --bg: #f4f8f6;
    --card: #ffffff;
    --text: #122019;
    --muted: #50685e;
    --accent: #1f9e74;
    --border: #dde9e3;
    --code-bg: #eef5f1;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0d1714;
        --card: #16221d;
        --text: #e8f2ed;
        --muted: #9bb3a8;
        --accent: #4fd1a0;
        --border: #25352e;
        --code-bg: #1c2a24;
    }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", Helvetica, Arial, sans-serif;
}
.wrap {
    max-width: 720px;
    margin: 0 auto;
    padding: 32px 22px 80px;
}
header { margin-bottom: 32px; }
header a {
    color: var(--accent);
    text-decoration: none;
    font-size: 14px;
    letter-spacing: 0.02em;
}
h1 {
    font-size: 30px;
    line-height: 1.2;
    margin: 14px 0 6px;
    letter-spacing: -0.01em;
}
.lede {
    color: var(--muted);
    margin: 0 0 28px;
    font-size: 14px;
}
h2 {
    font-size: 18px;
    margin: 32px 0 8px;
    letter-spacing: 0.01em;
}
p, ul { margin: 0 0 12px; }
ul { padding-left: 20px; }
li { margin: 4px 0; }
a { color: var(--accent); }
strong { color: var(--text); }
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px 28px;
    box-shadow: 0 1px 2px rgba(18, 32, 25, 0.04);
}
code {
    background: var(--code-bg);
    padding: 1px 6px;
    border-radius: 4px;
    font: 13px/1.5 "SF Mono", Menlo, monospace;
}
footer {
    margin-top: 40px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 13px;
}
footer a { color: var(--accent); }
.list-card {
    display: block;
    padding: 18px 22px;
    margin-top: 14px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text);
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}
.list-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(31, 158, 116, 0.14);
}
.list-card h3 { margin: 0 0 4px; font-size: 17px; color: var(--accent); }
.list-card p  { margin: 0; color: var(--muted); font-size: 14px; }