:root {
    color-scheme: light;

    --site-primary: #101828;
    --site-secondary: #2563eb;
    --site-accent: #2dd4bf;
    --site-highlight: #7c3aed;
    --site-bg: #f8fafc;
    --site-surface: #ffffff;
    --site-text: #111827;
    --site-muted: #64748b;
    --site-border: #e2e8f0;
    --site-soft: #eff6ff;
    --site-glow: rgba(37, 99, 235, 0.18);
    --site-shadow: 0 20px 55px rgba(16, 24, 40, 0.10);

    --site-radius-lg: 28px;
    --site-radius-md: 18px;
    --site-radius-sm: 12px;

    --site-max-width: 1100px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 8% 0%, rgba(45, 212, 191, 0.18), transparent 28rem),
        radial-gradient(circle at 92% 8%, rgba(124, 58, 237, 0.16), transparent 30rem),
        linear-gradient(180deg, #ffffff 0%, var(--site-bg) 48%, #ffffff 100%);
    color: var(--site-text);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.75;
}

a {
    color: var(--site-secondary);
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.18em;
}

a:hover {
    color: var(--site-highlight);
}

.site-header,
.site-nav,
.site-main,
.site-footer {
    max-width: var(--site-max-width);
    margin: 0 auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
}

.site-header {
    padding-top: 1.25rem;
    padding-bottom: 1rem;
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    border-bottom: 1px solid var(--site-border);
}

.site-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    color: var(--site-primary);
    text-decoration: none;
}

.site-logo-mark {
    display: inline-grid;
    place-items: center;
    width: 2.85rem;
    height: 2.85rem;
    border-radius: 16px;
    background:
        linear-gradient(135deg, var(--site-secondary), var(--site-highlight));
    color: #ffffff;
    font-weight: 900;
    box-shadow: 0 14px 35px var(--site-glow);
}

.site-logo-text {
    display: grid;
    line-height: 1.2;
}

.site-logo-text strong {
    font-size: 1.12rem;
    letter-spacing: -0.025em;
}

.site-logo-text small {
    color: var(--site-muted);
    font-size: 0.82rem;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    padding-top: 0.75rem;
    padding-bottom: 1.5rem;
}

.site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 2.5rem;
    padding: 0.45rem 0.9rem;
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.82);
    color: var(--site-primary);
    font-size: 0.95rem;
    font-weight: 800;
    text-decoration: none;
    box-shadow: 0 8px 20px rgba(16, 24, 40, 0.03);
}

.site-nav a:hover {
    border-color: rgba(37, 99, 235, 0.35);
    background: var(--site-soft);
    color: var(--site-secondary);
}

.site-main {
    padding-top: 1rem;
    padding-bottom: 3rem;
}

.home-hero,
.archive-hero,
.post-hero {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(226, 232, 240, 0.75);
    border-radius: var(--site-radius-lg);
    background:
        radial-gradient(circle at 82% 12%, rgba(45, 212, 191, 0.28), transparent 18rem),
        radial-gradient(circle at 92% 88%, rgba(124, 58, 237, 0.28), transparent 18rem),
        linear-gradient(135deg, #101828 0%, #172554 58%, #1e1b4b 100%);
    color: #ffffff;
    box-shadow: var(--site-shadow);
}

.home-hero::after,
.archive-hero::after,
.post-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(135deg, black, transparent 72%);
    pointer-events: none;
}

.home-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.85fr);
    gap: 1.5rem;
    align-items: stretch;
    padding: clamp(1.5rem, 4vw, 3.2rem);
}

.home-hero-content,
.home-hero-card,
.archive-hero > *,
.post-hero > * {
    position: relative;
    z-index: 1;
}

.home-hero-card {
    align-self: center;
    padding: 1.3rem;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--site-radius-md);
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
}

.hero-card-label,
.home-kicker,
.archive-kicker,
.post-kicker {
    display: inline-flex;
    margin: 0 0 0.9rem;
    color: var(--site-accent);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.archive-hero,
.post-hero {
    padding: clamp(1.5rem, 4vw, 3.2rem);
}

.home-hero h1,
.archive-hero h1,
.post-hero h1 {
    max-width: 880px;
    margin: 0;
    font-size: clamp(2.15rem, 6vw, 4.35rem);
    line-height: 1.03;
    letter-spacing: -0.06em;
}

.home-hero p,
.archive-hero p,
.post-hero p {
    max-width: 760px;
    font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.home-hero-card h2 {
    margin-top: 0.35rem;
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    line-height: 1.2;
}

.topic-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1.25rem 0 2rem;
}

.topic-strip span {
    padding: 0.65rem 1rem;
    border: 1px solid rgba(37, 99, 235, 0.22);
    border-radius: 999px;
    background: rgba(239, 246, 255, 0.9);
    color: var(--site-primary);
    font-weight: 900;
}

.archive-context,
.post-insight-card,
.post-author-note {
    margin: 1.5rem 0;
    padding: 1.25rem;
    border: 1px solid var(--site-border);
    border-radius: var(--site-radius-md);
    background:
        linear-gradient(180deg, #ffffff, #fbfdff);
    box-shadow: 0 12px 32px rgba(16, 24, 40, 0.055);
}

.archive-context h2,
.post-author-note h2 {
    margin-top: 0;
}

.post-insight-card {
    border-left: 5px solid var(--site-accent);
}

.post-insight-card strong {
    display: block;
    color: var(--site-primary);
    font-size: 1rem;
    margin-bottom: 0.35rem;
}

.blog-post {
    max-width: 880px;
    margin: 0 auto;
}

.post-meta-card {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.5rem;
}

.post-meta-card span {
    display: inline-flex;
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.92);
    font-size: 0.9rem;
    font-weight: 800;
}

.post-excerpt {
    color: rgba(255, 255, 255, 0.88);
}

.featured-image {
    margin: 1.5rem 0;
}

.featured-image img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: var(--site-radius-lg);
    box-shadow: var(--site-shadow);
}

.post-content {
    margin-top: 2rem;
    font-size: 1.06rem;
}

.post-content h2,
.post-content h3 {
    color: var(--site-primary);
    line-height: 1.25;
    letter-spacing: -0.03em;
}

.post-content h2 {
    margin-top: 2.25rem;
    font-size: clamp(1.55rem, 3vw, 2.2rem);
}

.post-content h3 {
    margin-top: 1.75rem;
    font-size: clamp(1.25rem, 2.4vw, 1.55rem);
}

.post-content p,
.post-content li {
    color: var(--site-text);
}

.post-content blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1.25rem;
    border-left: 4px solid var(--site-secondary);
    border-radius: var(--site-radius-sm);
    background: var(--site-soft);
    color: var(--site-primary);
    font-weight: 800;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    overflow: hidden;
    border: 1px solid var(--site-border);
    border-radius: var(--site-radius-md);
}

.post-content th,
.post-content td {
    padding: 0.85rem;
    border-bottom: 1px solid var(--site-border);
    text-align: left;
    vertical-align: top;
}

.post-content th {
    background: var(--site-soft);
    color: var(--site-primary);
}

.post-list {
    display: grid;
    gap: 1rem;
    padding: 0;
    list-style: none;
}

.post-list li {
    padding: 1.2rem;
    border: 1px solid var(--site-border);
    border-radius: var(--site-radius-md);
    background: var(--site-surface);
    box-shadow: 0 12px 32px rgba(16, 24, 40, 0.055);
}

.post-list a {
    color: var(--site-primary);
    font-size: 1.1rem;
    font-weight: 900;
    text-decoration: none;
}

.post-list a:hover {
    color: var(--site-secondary);
}

.faq-item,
.reference-list li,
.related-posts li {
    margin-bottom: 0.75rem;
}

.related-posts,
.faq,
.references {
    margin-top: 2rem;
}

.site-footer {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.site-footer-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: start;
    padding-top: 1.5rem;
    border-top: 1px solid var(--site-border);
    color: var(--site-muted);
}

.site-footer strong {
    color: var(--site-primary);
}

.site-footer p {
    margin: 0.35rem 0 0;
}

.site-footer-note {
    max-width: 340px;
    text-align: right;
}

@media (max-width: 760px) {
    .home-hero {
        grid-template-columns: 1fr;
    }

    .site-footer-inner {
        grid-template-columns: 1fr;
    }

    .site-footer-note {
        max-width: none;
        text-align: left;
    }

    .site-nav a {
        width: 100%;
        justify-content: center;
    }
}