:root {
    color-scheme: dark;
    font-family: Inter, ui-sans-serif, system-ui, sans-serif;
    background: #030712;
    color: #e2e8f0;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    background: radial-gradient(ellipse at top left, rgba(16, 185, 129, 0.12), transparent 38%), #030712;
}

.site-banner {
    display: block;
    width: 100%;
    max-width: 960px;
    height: auto;
    margin-inline: auto;
}

.instruction-image {
    display: block;
    max-width: 100%;
    height: auto;
    margin-block: 1.25rem;
    padding: 0.25rem;
    border: 2px solid #475569;
    border-radius: 0.5rem;
    background: #0f172a;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

a {
    color: #6ee7b7;
    text-underline-offset: 0.2em;
}

a:hover {
    color: #a7f3d0;
}

.site-header,
.site-footer,
main {
    width: min(100% - 2rem, 54rem);
    margin-inline: auto;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-block: 1.5rem;
    border-bottom: 1px solid #1e293b;
}

.site-header a {
    color: #f8fafc;
    font-weight: 700;
    text-decoration: none;
}

main {
    padding-block: 3.5rem 4rem;
}

.eyebrow {
    color: #6ee7b7;
    font: 600 0.75rem/1.4 ui-monospace, monospace;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1 {
    margin: 0.5rem 0 0.75rem;
    color: #f8fafc;
    font-size: clamp(2rem, 6vw, 3rem);
    line-height: 1.1;
}

h2 {
    margin: 2rem 0 0.6rem;
    color: #f8fafc;
    font-size: 1.2rem;
    line-height: 1.35;
}

p,
li {
    color: #cbd5e1;
    font-size: 1rem;
    line-height: 1.75;
}

.about-intro {
    display: flow-root;
}

.about-intro img {
    float: right;
    width: 8rem;
    height: 10rem;
    margin: 0 0 1rem 1.25rem;
    border-radius: 0.75rem;
    object-fit: cover;
}

ul {
    padding-left: 1.25rem;
}

.updated {
    color: #94a3b8;
    font-size: 0.875rem;
}

.site-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
    padding-block: 1.5rem 2rem;
    border-top: 1px solid #1e293b;
    font-size: 0.875rem;
}

@media (prefers-reduced-motion: no-preference) {
    main {
        animation: appear 360ms ease-out both;
    }

    @keyframes appear {
        from { opacity: 0; transform: translateY(8px); }
        to { opacity: 1; transform: translateY(0); }
    }
}

@media (max-width: 30rem) {
    .about-intro img {
        width: 6rem;
        height: 7.5rem;
    }
}