:root {
    color-scheme: dark;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #0c0f14;
    color: #d9e0ea;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at top, #182131 0, transparent 42rem),
        #0c0f14;
}

main {
    width: min(100% - 2rem, 42rem);
    margin: 4rem auto;
    padding: clamp(1.5rem, 5vw, 3rem);
    border: 1px solid #252d3a;
    border-radius: 1rem;
    background: rgba(17, 22, 30, 0.9);
    box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.25);
}

h1,
h2 {
    color: #f4f7fb;
    line-height: 1.2;
}

h1 {
    margin: 0 0 1.5rem;
    font-size: clamp(1.75rem, 5vw, 2.4rem);
    letter-spacing: -0.035em;
}

h2 {
    margin: 2rem 0 0.75rem;
    font-size: 1.05rem;
}

p {
    margin: 0 0 1rem;
    color: #aeb8c7;
    line-height: 1.7;
}

nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    margin-top: 2rem;
    padding-top: 1.25rem;
    border-top: 1px solid #252d3a;
}

a {
    color: #78b7ff;
    text-decoration: none;
}

a:hover,
a:focus-visible {
    color: #b6d8ff;
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

.back-link {
    margin-top: 2rem;
}