:root {
    color-scheme: light dark;
    --background: #f8f8f6;
    --foreground: #171717;
    --muted: #5f6368;
    --border: #d8d8d2;
    --accent: #2563eb;
    --surface: #ffffff;
}

@media (prefers-color-scheme: dark) {
    :root {
        --background: #111111;
        --foreground: #f4f4f1;
        --muted: #b6b6ae;
        --border: #33332f;
        --accent: #7aa2ff;
        --surface: #191916;
    }
}

* {
    box-sizing: border-box;
}

html {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
    line-height: 1.55;
    background: var(--background);
    color: var(--foreground);
}

body {
    margin: 0;
}

.page {
    width: min(760px, calc(100% - 32px));
    margin: 0 auto;
    padding: 48px 0 56px;
}

header {
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
    padding-bottom: 24px;
}

nav {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 18px;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1 {
    font-size: clamp(2rem, 6vw, 3.25rem);
    line-height: 1.04;
    margin: 0;
}

h2 {
    font-size: 1.22rem;
    margin: 32px 0 8px;
}

p,
li {
    font-size: 1rem;
}

.lead {
    color: var(--muted);
    font-size: 1.08rem;
    max-width: 620px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 18px;
    margin: 18px 0;
}

.meta {
    color: var(--muted);
    font-size: 0.94rem;
}

footer {
    border-top: 1px solid var(--border);
    color: var(--muted);
    margin-top: 40px;
    padding-top: 18px;
}