:root {
    --bg: #faf8f4;
    --surface: #ffffff;
    --fg: #1f1d1a;
    --fg-muted: #58544e;
    --fg-faint: #8a8680;
    --accent: #8a9a7b;        /* sage */
    --accent-ink: #ffffff;
    --border: #e8e3da;
    --code-bg: #f1ede4;
    --radius: 14px;
    --max: 44rem;
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #141311;
        --surface: #1d1b17;
        --fg: #f1ede4;
        --fg-muted: #c5bfb3;
        --fg-faint: #8c877e;
        --accent: #a8b498;
        --accent-ink: #141311;
        --border: #2a2824;
        --code-bg: #26231f;
    }
}
:root[data-theme="dark"] {
    --bg: #141311;
    --surface: #1d1b17;
    --fg: #f1ede4;
    --fg-muted: #c5bfb3;
    --fg-faint: #8c877e;
    --accent: #a8b498;
    --accent-ink: #141311;
    --border: #2a2824;
    --code-bg: #26231f;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    background: var(--bg);
    color: var(--fg);
    font: 16px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    padding: 0 16px;
}
.wrap {
    max-width: var(--max);
    margin: 0 auto;
    padding: 48px 0 72px;
}

header.site {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}
header.site .brand {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--fg);
    text-decoration: none;
}
header.site nav a {
    color: var(--fg-muted);
    text-decoration: none;
    margin-left: 20px;
    font-size: 0.95rem;
}
header.site nav a:hover { color: var(--fg); }

h1 {
    font-size: 2rem;
    line-height: 1.2;
    letter-spacing: -0.01em;
    margin: 0 0 8px;
}
h2 {
    font-size: 1.25rem;
    margin: 32px 0 12px;
    letter-spacing: -0.005em;
}
h3 {
    font-size: 1.05rem;
    margin: 24px 0 8px;
    color: var(--fg-muted);
}
p { margin: 0 0 14px; color: var(--fg); }
.lede { color: var(--fg-muted); font-size: 1.05rem; margin-bottom: 24px; }
.meta { color: var(--fg-faint); font-size: 0.85rem; margin: 0 0 24px; }

a { color: var(--accent); }
a:hover { opacity: 0.8; }

ul, ol { padding-left: 1.4rem; margin: 0 0 14px; }
li { margin: 4px 0; }

code, kbd {
    background: var(--code-bg);
    padding: 0.1em 0.35em;
    border-radius: 6px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.9em;
}

blockquote {
    border-left: 3px solid var(--accent);
    padding: 2px 0 2px 14px;
    margin: 16px 0;
    color: var(--fg-muted);
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 22px;
    margin: 16px 0;
}

.hero {
    padding: 48px 0 32px;
    text-align: center;
}
.hero .tag {
    display: inline-block;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 0.78rem;
    margin-bottom: 12px;
}
.hero h1 {
    font-size: 2.4rem;
    margin: 0 0 10px;
}
.hero p { color: var(--fg-muted); font-size: 1.15rem; max-width: 32rem; margin: 0 auto 24px; }

.cta {
    display: inline-block;
    background: var(--accent);
    color: var(--accent-ink);
    padding: 10px 20px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
}
.cta:hover { opacity: 0.9; }

.features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin: 32px 0;
}
@media (min-width: 640px) {
    .features { grid-template-columns: 1fr 1fr; }
}
.feature h3 { color: var(--fg); margin-top: 0; }
.feature p { color: var(--fg-muted); margin-bottom: 0; }

footer.site {
    margin-top: 64px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--fg-faint);
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
footer.site a { color: var(--fg-muted); text-decoration: none; margin-right: 16px; }
footer.site a:hover { color: var(--fg); }