:root {
    --bg: #f6f7fb;
    --surface: #ffffff;
    --text: #1b1d24;
    --muted: #5d6170;
    --border: rgba(20, 24, 40, 0.09);
    --accent: #2a8fa8;
    --accent-2: #4f5fc4;
    --radius: 16px;
    --max: 760px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1117;
        --surface: #181b24;
        --text: #eceef4;
        --muted: #a0a5b5;
        --border: rgba(255, 255, 255, 0.08);
        --accent: #4fc3d9;
        --accent-2: #8c98ff;
    }
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
}

a {
    color: var(--accent);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.wrap {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    padding: 20px 0;
}

.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 650;
    text-decoration: none;
}

.brand img {
    width: 28px;
    height: 28px;
}

.site-header nav {
    display: flex;
    gap: 18px;
    font-size: 15px;
}

.site-header nav a {
    color: var(--muted);
    text-decoration: none;
}

.site-header nav a:hover,
.site-header nav a[aria-current="page"] {
    color: var(--text);
}

/* Hero */
.hero {
    padding: 48px 0 40px;
    text-align: center;
}

.hero img {
    width: 128px;
    height: 128px;
    filter: drop-shadow(0 12px 28px rgba(42, 100, 170, 0.28));
}

.hero h1 {
    margin: 22px 0 6px;
    font-size: clamp(36px, 7vw, 52px);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero .lede {
    max-width: 34em;
    margin: 0 auto;
    color: var(--muted);
    font-size: 19px;
}

.cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 28px;
    padding: 12px 22px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff;
    font-weight: 600;
    text-decoration: none;
}

.cta:hover {
    filter: brightness(1.06);
}

.fine {
    margin-top: 10px;
    color: var(--muted);
    font-size: 14px;
}

/* Cards */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 14px;
    margin: 8px 0 48px;
}

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

.card h3 {
    margin: 0 0 4px;
    font-size: 17px;
}

.card p {
    margin: 0;
    color: var(--muted);
    font-size: 15px;
}

/* Prose pages */
.prose {
    padding: 24px 0 56px;
}

.prose h1 {
    margin: 12px 0 4px;
    font-size: 36px;
    letter-spacing: -0.015em;
}

.prose h2 {
    margin: 36px 0 8px;
    font-size: 21px;
}

.prose .updated {
    margin: 0 0 24px;
    color: var(--muted);
    font-size: 15px;
}

.prose li + li {
    margin-top: 6px;
}

.panel {
    margin: 24px 0;
    padding: 18px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
}

.steps {
    margin: 0 0 48px;
}

.steps ol {
    padding-left: 1.3em;
}

h2.section {
    margin: 0 0 12px;
    font-size: 24px;
    letter-spacing: -0.01em;
}

/* Footer */
.site-footer {
    padding: 28px 0 40px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 14px;
}

.site-footer .wrap {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px 20px;
}

.site-footer a {
    color: var(--muted);
}