:root {
    color-scheme: light dark;
    --background: #f6f7fb;
    --surface: #ffffff;
    --text: #172033;
    --muted: #5d6678;
    --accent: #3157c8;
    --border: #dfe3ec;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.65;
}

main {
    width: min(760px, calc(100% - 2rem));
    margin: 4rem auto;
    padding: clamp(1.5rem, 5vw, 3.5rem);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: 0 18px 60px rgba(23, 32, 51, 0.08);
}

h1,
h2 {
    line-height: 1.2;
}

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

h2 {
    margin-top: 2rem;
    font-size: 1.25rem;
}

p,
li {
    color: var(--muted);
}

a {
    color: var(--accent);
}

.eyebrow {
    margin-bottom: 0.5rem;
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.lead {
    font-size: 1.2rem;
}

.notice {
    margin: 2rem 0;
    padding: 1rem 1.25rem;
    border-left: 4px solid var(--accent);
    background: color-mix(in srgb, var(--accent) 7%, var(--surface));
}

nav {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

@media (prefers-color-scheme: dark) {
    :root {
        --background: #0c1120;
        --surface: #151c2d;
        --text: #f2f4fa;
        --muted: #bac2d4;
        --accent: #93adff;
        --border: #2c3650;
    }

    main {
        box-shadow: none;
    }
}