:root {
  color-scheme: dark;
  --bg: #08070d;
  --panel: #121118;
  --line: #2b2935;
  --text: #f7f5fb;
  --muted: #aaa6b5;
  --purple: #8b5cf6;
  --pink: #e65bc4;
  --max: 1180px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background:
    radial-gradient(circle at 50% -10%, #241344 0, transparent 35%), var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}
a {
  color: inherit;
}
img {
  max-width: 100%;
}
.resource-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(8, 7, 13, 0.82);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
}
.resource-nav {
  max-width: var(--max);
  margin: auto;
  height: 78px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.resource-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  font-size: 20px;
}
.resource-brand img {
  width: 40px;
  height: 40px;
  border-radius: 11px;
}
.resource-links {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}
.resource-links a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 650;
}
.resource-links a:hover {
  color: #fff;
}
.lang-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
}
.resource-main {
  max-width: var(--max);
  margin: auto;
  padding: 72px 28px 100px;
}
.hub-hero {
  max-width: 900px;
  margin: 25px auto 70px;
  text-align: center;
}
.eyebrow {
  color: #ad8aff;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  font-size: 13px;
}
.hub-hero h1,
.article-hero h1 {
  margin: 0.25em 0;
  font-size: clamp(44px, 7vw, 86px);
  line-height: 0.97;
  letter-spacing: -0.055em;
}
.hub-hero p,
.article-lead {
  font-size: clamp(19px, 2vw, 24px);
  color: var(--muted);
  line-height: 1.5;
}
.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
.article-card {
  min-height: 310px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(
    145deg,
    rgba(139, 92, 246, 0.13),
    rgba(18, 17, 24, 0.9) 55%
  );
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition:
    0.25s transform,
    0.25s border-color;
}
.article-card:hover {
  transform: translateY(-4px);
  border-color: #7352bd;
}
.article-card .number {
  color: #9d7cff;
  font-weight: 800;
}
.article-card h2 {
  font-size: 30px;
  line-height: 1.12;
  letter-spacing: -0.035em;
  margin: 24px 0 12px;
}
.article-card p {
  color: var(--muted);
  font-size: 17px;
}
.article-card .read {
  margin-top: auto;
  color: #c6adff;
  font-weight: 750;
}
.breadcrumbs {
  display: flex;
  gap: 9px;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 42px;
}
.breadcrumbs a {
  text-decoration: none;
}
.article-hero {
  max-width: 930px;
  margin: 0 auto 55px;
}
.article-hero h1 {
  font-size: clamp(43px, 6vw, 76px);
}
.article-meta {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}
.article-layout {
  max-width: 1040px;
  margin: auto;
  display: grid;
  grid-template-columns: minmax(0, 740px) 240px;
  gap: 60px;
  align-items: start;
}
.article-body {
  font-size: 18px;
}
.article-body h2 {
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: -0.035em;
  margin: 64px 0 18px;
  scroll-margin-top: 110px;
}
.article-body h3 {
  font-size: 24px;
  margin: 34px 0 12px;
}
.article-body p,
.article-body li {
  color: #d1cdd8;
}
.article-body li + li {
  margin-top: 9px;
}
.article-body strong {
  color: #fff;
}
.guide-figure {
  width: calc(100% + 100px);
  margin: 38px 0 42px -50px;
}
.guide-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #3b3748;
  border-radius: 24px;
  background: #121118;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
}
.guide-figure figcaption {
  margin: 13px 18px 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}
.callout {
  padding: 24px 26px;
  margin: 34px 0;
  border: 1px solid #523b82;
  border-radius: 20px;
  background: rgba(139, 92, 246, 0.1);
}
.article-toc {
  position: sticky;
  top: 110px;
  border-left: 1px solid var(--line);
  padding-left: 24px;
}
.article-toc strong {
  display: block;
  margin-bottom: 12px;
}
.article-toc a {
  display: block;
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
  padding: 7px 0;
}
.article-toc a:hover {
  color: #fff;
}
.article-cta {
  max-width: 1040px;
  margin: 80px auto 0;
  padding: 48px;
  border-radius: 30px;
  text-align: center;
  background: linear-gradient(135deg, #6246ea, #bd46cf);
  box-shadow: 0 30px 90px rgba(111, 66, 220, 0.25);
}
.article-cta h2 {
  font-size: 38px;
  line-height: 1.1;
  margin: 0 0 12px;
}
.article-cta p {
  font-size: 18px;
  margin: 0 auto 25px;
  max-width: 650px;
}
.cta-button {
  display: inline-flex;
  padding: 15px 24px;
  border-radius: 999px;
  background: #fff;
  color: #111;
  text-decoration: none;
  font-weight: 800;
}
.resource-footer {
  border-top: 1px solid var(--line);
  padding: 35px 28px;
  color: var(--muted);
}
.resource-footer > div {
  max-width: var(--max);
  margin: auto;
  display: flex;
  justify-content: space-between;
  gap: 25px;
  flex-wrap: wrap;
}
.resource-footer nav {
  display: flex;
  gap: 20px;
}
.resource-footer a {
  text-decoration: none;
}
.resource-footer a:hover {
  color: #fff;
}
@media (max-width: 850px) {
  .guide-figure {
    width: 100%;
    margin: 30px 0 36px;
  }
  .guide-figure img {
    border-radius: 18px;
  }
  .article-grid {
    grid-template-columns: 1fr;
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-toc {
    display: none;
  }
  .resource-links a:not(.lang-pill) {
    display: none;
  }
  .resource-main {
    padding-top: 45px;
  }
  .article-cta {
    padding: 35px 22px;
  }
  .article-card {
    min-height: 270px;
  }
}