:root {
    --bg: #0f172a;
    --surface: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --accent: #38bdf8;
    --radius: 14px;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    background: #f1f5f9;
    color: #0f172a;
    line-height: 1.6;
    overflow-x: hidden;
    max-width: 100vw;
}
header {
    background: radial-gradient(circle at top, #0f172a 0%, #020617 70%);
    color: #fff;
    padding: 3rem 1.5rem 4rem;
    text-align: center;
}
header h1 {
    font-size: clamp(2.4rem, 4vw, 3rem);
    margin-bottom: 0.5rem;
}
header p {
    max-width: 650px;
    margin: 0.5rem auto 0;
    color: rgba(255,255,255,0.85);
}
.top-links {
    height: 48px;
}
.top-links .items {
    margin: auto;
    max-width: 1050px;
    width: 100%;
    text-align: center;
    padding-top: 12px;
}
.top-links .items a {
    margin-right: 32px;
}

main {
    max-width: 1050px;
    margin: -2.5rem auto 3rem;
    padding: 0 1.5rem;
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 1.3fr 0.7fr;
}
article, aside {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.5rem 1.5rem 1.75rem;
    box-shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
    max-width: 100%;
    overflow-wrap: break-word;
}
h2 {
    margin-top: 1.1rem;
    margin-bottom: 0.5rem;
}
pre {
    background: #0f172a;
    color: #e2e8f0;
    padding: 1rem 1.1rem;
    border-radius: 12px;
    overflow-x: auto;
    font-size: 0.9rem;
    line-height: 1.4;
    max-width: 100%;
}
code {
    font-family: ui-monospace, SFMono-Regular, SFMono-Regular, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
.badge {
    display: inline-block;
    background: rgba(56,189,248,0.12);
    color: #0f172a;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    margin-bottom: .75rem;
}
ul {
    padding-left: 1.2rem;
}
a {
    color: #0284c7;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
footer {
    text-align: center;
    color: #94a3b8;
    font-size: 0.8rem;
    margin-bottom: 2rem;
}
@media(max-width: 800px) {
    main {
        grid-template-columns: 1fr;
        margin-top: -2.5rem;
        padding: 0 1.25rem;
        width: 100%;
    }
    article, aside {
        width: 100%;
        min-width: 0;
    }
}
@media(max-width: 640px) {
    .top-links .items a {
        margin-right: 16px;
    }
    header {
        padding: 2rem 1rem 3rem;
    }
    header h1 {
        font-size: 2rem;
    }
    header p {
        font-size: 0.95rem;
    }
    main {
        padding: 0 1rem;
        gap: 1rem;
        margin-top: -2rem;
    }
    article, aside {
        padding: 1.25rem;
    }
    h2 {
        font-size: 1.4rem;
        margin-top: 1.5rem;
    }
    pre {
        padding: 0.85rem;
        font-size: 0.85rem;
        margin: 0.75rem 0;
    }
    code {
        word-break: break-word;
    }
    ul, ol {
        padding-left: 1rem;
    }
    .badge {
        font-size: 0.65rem;
        padding: 0.12rem 0.5rem;
    }
}