:root {
    color-scheme: dark;
    --accent: #fc4c02;
    --background: #000000;
    --surface: #17191e;
    --text: #f5f6f7;
    --muted: #b7bbc3;
    --border: #2b2f37;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: radial-gradient(circle at center, #111118 0%, #000000 72%);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.65;
}

.landing {
    display: grid;
    min-height: 100svh;
    grid-template-rows: 1fr auto;
    overflow: hidden;
}

.landing-content {
    display: grid;
    width: 100%;
    min-height: 0;
    min-width: 0;
    place-items: center;
    padding: 32px;
}

.app-icon {
    display: block;
    width: min(500px, 78vw, 66vh);
    max-width: 100%;
    height: auto;
}

.landing-footer {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 0 20px 24px;
    color: #777b84;
    font-size: 0.82rem;
}

.landing-footer a {
    color: #9da1aa;
    text-decoration: none;
}

.landing-footer a:hover,
.landing-footer a:focus-visible {
    color: var(--text);
}

.document {
    width: min(760px, calc(100% - 32px));
    margin: 48px auto;
}

.document-nav {
    display: flex;
    justify-content: space-between;
    margin-bottom: 36px;
    font-size: 0.9rem;
}

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

.document-nav a:hover,
.document-nav a:focus-visible {
    color: var(--text);
}

header {
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
    padding-bottom: 24px;
}

h1,
h2 {
    line-height: 1.2;
}

h1 {
    font-size: 2.3rem;
    margin: 0 0 8px;
}

h2 {
    font-size: 1.15rem;
    margin-top: 32px;
}

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

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

.brand {
    color: var(--accent);
    font-weight: 700;
}

.meta {
    font-size: 0.92rem;
}

.notice {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 18px;
}

footer {
    border-top: 1px solid var(--border);
    margin-top: 40px;
    padding-top: 20px;
}

code {
    color: #e7e9ed;
}

@media (max-width: 560px) {
    .landing-content {
        padding: 20px;
    }

    .app-icon {
        width: min(500px, 92vw);
    }

    .document {
        margin-top: 24px;
    }

    h1 {
        font-size: 2rem;
    }
}