:root {
    --bg: #090909;
    --bg-surface: #111111;
    --bg-inset: #070707;
    --fg: #dddddd;
    --fg-muted: #888888;
    --fg-dim: #555555;
    --border: #222222;
    --border-light: #2a2a2a;
    --shadow-raised: 0 4px 16px rgba(0, 0, 0, 0.6);
    --shadow-inset: inset 0 2px 6px rgba(0, 0, 0, 0.7);
    --radius: 2px;
    --link: #66b3ff;
    --accent: #fff066;
    --accent-muted: #a366ffcc;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-y: scroll;
}

body {
    background: var(--bg);
    color: var(--fg);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--link);
    text-decoration: none;
}

a:hover,
a:focus {
    color: #99ccff;
}

button,
select,
input {
    background: var(--bg-surface);
    color: var(--fg);
    border: 1px solid var(--border);
    border-top: 1px solid var(--border-light);
    border-radius: var(--radius);
    padding: 8px 12px;
    font: inherit;
    cursor: pointer;
}

button:hover,
select:hover,
input:hover {
    border-color: var(--border-light);
}

button:focus-visible,
select:focus-visible,
input:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 2px;
}

button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 2px;
}

.flex-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    align-items: start;
    gap: 16px;
}

.bi-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.tri-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.stack {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--link);
    color: var(--bg);
    padding: 8px 16px;
    z-index: 200;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 0;
}

main {
    position: relative;
    z-index: 1;
    flex: 1;
    width: 100%;
    padding: 32px 40px 64px;
}

hr {
    border: none;
    border-top: 1px solid var(--border-light);
    margin: 16px 0 16px 0;
    width: 100%;
}

p {
    color: var(--fg-muted);
}

p.bright {
    color: var(--fg);
}

.meta-label {
    color: var(--fg-dim);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ── Contact Links ── */
.social-link {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--fg-dim);
    font-size: 14px;
    margin: 12px 0 0 0;
}

.social-link a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.12s ease;
}

.social-link a:hover {
    text-decoration: none;
}

.social-link svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.social-link a.github,
.social-link a.email { color: #cccccc; }

.social-link a.github:hover,
.social-link a.email:hover { color: #ffffff; }

.social-link a.linkedin { color: #0A66C2; }

.social-link a.linkedin:hover { color: #4d9ef5; }

.social-link a.discord { color: #5865F2; }

.social-link a.discord:hover { color: #8b93f5; }

article {
    max-width: 760px;
    margin: 0 auto;
}

.article-header h1 {
    margin: 0 0 12px 0;
    color: var(--fg);
    font-size: 28px;
    line-height: 1.25;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--fg-dim);
    font-size: 14px;
    margin-bottom: 24px;
}

article hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 24px 0 28px 0;
}

article h3 {
    margin: 28px 0 12px 0;
    color: var(--fg);
    font-size: 18px;
    line-height: 1.3;
}

article p {
    margin: 0 0 14px 0;
    line-height: 1.65;
}

article ul {
    margin: 0 0 14px 0;
    padding-left: 20px;
}

article li {
    margin-bottom: 6px;
    line-height: 1.55;
}

article pre {
    margin: 16px 0;
}

pre code {
    display: block;
}

code {
    font-family: inherit;
}

.callout {
    border-left: 3px solid var(--border-light);
    padding: 10px 14px;
    margin: 16px 0;
    color: var(--fg-muted);
    background: rgba(255, 255, 255, 0.02);
    line-height: 1.55;
}

.copyright {
    text-align: center;
    padding: 24px;
    margin: 0;
    color: var(--fg-dim);
    font-size: 14px;
    border-top: 1px solid var(--border);
}

/* Responsiveness */
@media (max-width: 640px) {
    .watermark {
        display: none;
    }

    main {
        padding: 20px 12px 48px;
    }

    .tri-grid,
    .bi-grid {
        grid-template-columns: 1fr;
    }

    .social-link {
        flex-wrap: wrap;
        gap: 10px 16px;
    }
}

@media print {
    body {
        background: #fff;
        color: #000;
    }

    .copyright {
        display: none;
    }

    a {
        color: #000;
        text-decoration: underline;
    }
}