:root {
  --ink: #171717;
  --muted: #66666f;
  --indigo: #4d52de;
  --indigo-dark: #3438a8;
  --lime: #b5d44c;
  --paper: #f4f5f8;
  --white: #fff;
  --line: rgba(23, 23, 23, 0.1);
  --radius-xl: 36px;
  --radius-lg: 22px;
  --radius-md: 14px;
  --shadow: 0 24px 65px rgba(17, 18, 42, 0.11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--white); color: var(--ink); font-family: "Inter", sans-serif; font-size: 17px; line-height: 1.68; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; }
.container { width: min(1160px, 90%); margin-inline: auto; }

.topbar { padding: 0.65rem 0; background: #0d0d14; color: rgba(255,255,255,.82); font-size: .9rem; text-align: center; }
.topbar a { color: var(--lime); font-weight: 700; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.94); backdrop-filter: blur(14px); }
.nav { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 1.5rem; }
.logo { display: inline-flex; align-items: center; gap: .65rem; font-size: 1.35rem; font-weight: 800; letter-spacing: -.04em; }
.logo-mark { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 10px; background: var(--indigo); color: var(--white); }
.nav-links { display: flex; align-items: center; gap: 1.4rem; font-size: .94rem; font-weight: 700; }
.nav-links a:hover { color: var(--indigo); }
.nav-cta { padding: .72rem 1.05rem; border-radius: 12px; background: var(--ink); color: var(--white) !important; }
.menu-toggle { display: none; border: 0; background: transparent; font: inherit; font-weight: 800; cursor: pointer; }

.blog-hero { position: relative; overflow: hidden; margin: 30px auto; padding: clamp(4rem, 9vw, 7.5rem) clamp(1.5rem, 6vw, 5rem); border-radius: var(--radius-xl); background: linear-gradient(135deg, #11121e 0%, #282b82 58%, #4d52de 100%); color: var(--white); }
.blog-hero::before { position: absolute; top: -180px; right: -120px; width: 430px; height: 430px; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; content: ""; box-shadow: 0 0 0 80px rgba(255,255,255,.04), 0 0 0 160px rgba(255,255,255,.025); }
.blog-hero > * { position: relative; z-index: 1; }
.eyebrow { display: inline-block; margin-bottom: 1rem; color: var(--lime); font-family: "DM Mono", monospace; font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.12; letter-spacing: -.035em; }
h1 { max-width: 900px; margin-bottom: 1.25rem; font-size: clamp(2.4rem, 6vw, 5rem); }
h2 { margin-bottom: 1rem; font-size: clamp(1.7rem, 4vw, 2.65rem); }
h3 { margin-bottom: .7rem; font-size: 1.3rem; }
.hero-lead { max-width: 720px; margin: 0; color: rgba(255,255,255,.82); font-size: clamp(1.05rem, 2vw, 1.25rem); }
.hero-meta { display: flex; flex-wrap: wrap; gap: .7rem 1.4rem; margin-top: 1.8rem; color: rgba(255,255,255,.72); font-size: .9rem; font-weight: 700; }

.section { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.section-soft { background: var(--paper); }
.section-intro { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 2.5rem; }
.section-intro p { max-width: 650px; margin: 0; color: var(--muted); }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.post-card { display: flex; min-width: 0; overflow: hidden; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--white); transition: transform .25s ease, box-shadow .25s ease; }
.post-card:hover { transform: translateY(-7px); box-shadow: var(--shadow); }
.post-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.post-card-body { display: flex; flex: 1; flex-direction: column; padding: 1.45rem; }
.post-meta { margin-bottom: .6rem; color: var(--indigo); font-family: "DM Mono", monospace; font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.post-card p { flex: 1; margin: 0 0 1rem; color: var(--muted); font-size: .95rem; }
.text-link { display: inline-flex; align-items: center; gap: .4rem; color: var(--indigo); font-weight: 800; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.post-card:hover .text-link::after { transform: translateX(4px); }

.article-shell { display: grid; grid-template-columns: minmax(0, 760px) minmax(220px, 300px); gap: clamp(2rem, 6vw, 5rem); align-items: start; padding: 3rem 0 6rem; }
.article-main { min-width: 0; }
.article-main > p:first-of-type { color: #383842; font-size: 1.16rem; }
.article-main p { margin: 0 0 1.35rem; }
.article-main h2 { margin-top: 3.2rem; scroll-margin-top: 110px; }
.article-main h3 { margin-top: 2rem; }
.article-main ul, .article-main ol { margin: 0 0 1.5rem; padding-left: 1.3rem; }
.article-main li { margin-bottom: .65rem; }
.article-main a { color: var(--indigo-dark); font-weight: 700; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.article-image { width: 100%; margin: 2.4rem 0; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.image-caption { margin: -1.8rem 0 2.4rem !important; color: var(--muted); font-size: .82rem; }
.callout { margin: 2.2rem 0; padding: 1.5rem 1.6rem; border: 1px solid rgba(77,82,222,.22); border-left: 5px solid var(--indigo); border-radius: var(--radius-md); background: #f3f3ff; }
.callout strong { display: block; margin-bottom: .35rem; }
.callout p { margin: 0; }
.checklist { list-style: none; padding: 0 !important; }
.checklist li { position: relative; padding-left: 2rem; }
.checklist li::before { position: absolute; left: 0; top: .08rem; color: var(--indigo); content: "✓"; font-weight: 900; }
.comparison { width: 100%; margin: 2rem 0; border-collapse: collapse; font-size: .94rem; }
.comparison th, .comparison td { padding: 1rem; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.comparison th { background: var(--ink); color: var(--white); }
.comparison tr:nth-child(even) td { background: var(--paper); }
.toc { position: sticky; top: 100px; padding: 1.4rem; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); }
.toc strong { display: block; margin-bottom: .8rem; }
.toc a { display: block; padding: .48rem 0; color: var(--muted); font-size: .9rem; font-weight: 700; }
.toc a:hover { color: var(--indigo); }

.article-cta { display: grid; margin-top: 3.5rem; padding: clamp(1.7rem, 5vw, 3rem); border-radius: var(--radius-xl); background: var(--indigo); color: var(--white); }
.article-cta p { color: rgba(255,255,255,.8); }
.button { display: inline-flex; width: fit-content; align-items: center; justify-content: center; min-height: 50px; padding: .85rem 1.2rem; border-radius: 13px; background: var(--lime); color: var(--ink) !important; font-weight: 800; text-decoration: none !important; }

.site-footer { padding: 3.2rem 0; background: #0d0d14; color: rgba(255,255,255,.72); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center; }
.site-footer .logo { color: var(--white); }
.footer-links { display: flex; flex-wrap: wrap; gap: .8rem 1.2rem; justify-content: flex-end; font-size: .9rem; font-weight: 700; }
.footer-links a:hover { color: var(--lime); }
.footer-meta { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.12); font-size: .85rem; }

@media (max-width: 900px) {
  .nav-links { display: none; position: absolute; top: 76px; right: 5%; left: 5%; padding: 1rem; flex-direction: column; align-items: stretch; border: 1px solid var(--line); border-radius: 16px; background: var(--white); box-shadow: var(--shadow); }
  .nav-links.is-open { display: flex; }
  .menu-toggle { display: block; }
  .card-grid { grid-template-columns: 1fr; }
  .article-shell { grid-template-columns: 1fr; }
  .toc { position: static; order: -1; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .blog-hero { margin-top: 18px; padding: 3.4rem 1.35rem; border-radius: 24px; }
  .section-intro, .footer-grid { align-items: start; flex-direction: column; grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
  .comparison { display: block; overflow-x: auto; }
}