*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --accent: #ff6b9d;
    --bg: #1a1a1c;
    --card-bg: #2c2c2e;
    --text: #f0f0f0;
    --text-muted: #aaaaaa;
    --radius: 12px;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.65;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ── Viewport wrapper ─────────────────────────────── */

.viewport {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ── Header / Nav ────────────────────────────────── */

.site-head {
    padding: 1.25rem 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.site-head-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.site-head-logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
}

.site-head-menu .nav {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 2rem;
}

.site-head-menu .nav a {
    color: var(--text-muted);
    font-size: 0.925rem;
    transition: color 0.15s;
}

.site-head-menu .nav a:hover {
    color: var(--text);
}

/* ── Main content ────────────────────────────────── */

.site-content {
    flex: 1;
}

.article {
    padding: 4rem 2rem;
}

.content-canvas {
    max-width: 720px;
    margin: 0 auto;
}

.article-title {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.info-panel {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin: 1.5rem 1.5rem;
}

.info-panel-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.info-panel p {
    margin: 0;
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.6;
}

.content-canvas p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 1.25rem;
}

.content-canvas em {
    color: var(--text);
    font-style: italic;
}

.content-canvas p a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: rgba(255, 107, 157, 0.4);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.15s;
}

.content-canvas p a:hover {
    text-decoration-color: var(--accent);
}

.content-canvas code {
    background: var(--card-bg);
    color: var(--accent);
    font-family: 'Cascadia Code', 'Fira Code', 'Menlo', monospace;
    font-size: 0.875em;
    padding: 0.15em 0.45em;
    border-radius: 5px;
}

/* ── Lists ───────────────────────────────────────── */

.content-canvas ul,
.content-canvas ol {
    color: var(--text-muted);
    font-size: 1.05rem;
    padding-left: 1.75rem;
    margin-bottom: 1.25rem;
}

.content-canvas li {
    margin-bottom: 0.5rem;
    line-height: 1.65;
}

.content-canvas ul {
    list-style: disc;
}

.content-canvas ol {
    list-style: none;
    padding-left: 0;
}

.content-canvas ol li {
    padding-left: 0.25rem;
}

/* ── Blockquote ──────────────────────────────────── */

.content-canvas blockquote {
    background: var(--card-bg);
    border-left: 3px solid var(--accent);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--text-muted);
    font-size: 1.05rem;
    font-style: italic;
    line-height: 1.65;
    margin: 1.25rem 0;
    padding: 1rem 1.25rem;
}

/* ── Width helpers ───────────────────────────────── */

.width-wide {
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.width-full {
    width: 100vw;
    margin-left: calc(50% - 50vw);
}

/* ── Card / section blocks ───────────────────────── */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 2rem 1.75rem;
}

.card h3 {
    color: var(--accent);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.card p {
    color: var(--text-muted);
    font-size: 0.975rem;
    margin: 0;
}

/* ── Section headings ────────────────────────────── */

.content-canvas h2 {
    font-size: 1.9rem;
    font-weight: 700;
    margin: 2.5rem 0 1.25rem;
    text-align: left;
}

.content-canvas h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 2rem 0 0.75rem;
    color: var(--accent);
}

/* ── Footer ──────────────────────────────────────── */

.site-footer {
    padding: 1.75rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.site-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.site-footer-nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 1.5rem;
}

.site-footer-nav a {
    color: var(--text-muted);
    font-size: 0.875rem;
    transition: color 0.15s;
}

.site-footer-nav a:hover {
    color: var(--text);
}

/* ── Responsive ──────────────────────────────────── */

@media (max-width: 640px) {
    .site-head-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .article-title {
        font-size: 1.75rem;
    }

    .site-footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}