@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

:root {
  color-scheme: dark;
  --bg: #050505;
  --card: #111111;
  --muted: #a1a1aa;
  --line: #27272a;
  --orange: #f97316;
  --purple: #a855f7;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: #f4f4f5;
  font-family: Inter, system-ui, sans-serif;
  line-height: 1.75;
}
a { color: inherit; }
.blog-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(39,39,42,.8);
  background: rgba(5,5,5,.86);
  backdrop-filter: blur(16px);
}
.blog-nav {
  width: min(1180px, calc(100% - 32px));
  min-height: 76px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.blog-brand {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -.03em;
  text-decoration: none;
  background: linear-gradient(90deg, var(--orange), #ef4444, var(--purple));
  background-clip: text;
  color: transparent;
}
.blog-navlinks { display: flex; gap: 22px; color: var(--muted); font-size: .88rem; }
.blog-navlinks a { text-decoration: none; transition: color .2s ease; }
.blog-navlinks a:hover { color: var(--orange); }
.blog-wrap { width: min(900px, calc(100% - 32px)); margin: auto; }
.blog-hero { padding: 84px 0 42px; }
.blog-kicker {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--orange);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.blog-hero h1 {
  max-width: 840px;
  margin: 0 0 22px;
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  line-height: 1.08;
  letter-spacing: -.055em;
}
.blog-dek { max-width: 720px; margin: 0; color: var(--muted); font-size: 1.12rem; }
.blog-byline { margin-top: 28px; color: #d4d4d8; font-size: .9rem; }
.blog-byline strong { color: #fff; }
.blog-article {
  padding: 24px 0 80px;
  font-size: 1.05rem;
}
.blog-article h2 {
  margin: 52px 0 16px;
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -.035em;
}
.blog-article h3 { margin: 28px 0 8px; color: #fff; font-size: 1.08rem; }
.blog-article p { margin: 0 0 21px; color: #d4d4d8; }
.blog-article ol { margin: 0 0 26px; padding-left: 1.35rem; color: #d4d4d8; }
.blog-article li { margin: 0 0 13px; padding-left: 5px; }
.blog-article strong { color: #fff; }
.blog-article a { color: #fb923c; text-decoration: underline; text-decoration-color: rgba(251,146,60,.35); text-underline-offset: 3px; }
.course-callout {
  margin: 48px 0;
  padding: 30px;
  border: 1px solid rgba(249,115,22,.45);
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(249,115,22,.16), rgba(168,85,247,.12));
  box-shadow: 0 18px 60px rgba(249,115,22,.08);
}
.course-callout h2 { margin-top: 0; font-size: 1.7rem; }
.course-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 22px; }
.course-item { padding: 18px; border: 1px solid rgba(255,255,255,.12); border-radius: 16px; background: rgba(5,5,5,.48); }
.course-item h3 { margin-top: 0; font-size: 1rem; }
.course-item p { margin-bottom: 12px; font-size: .87rem; line-height: 1.55; }
.course-item a { font-size: .85rem; font-weight: 700; }
.article-links {
  margin-top: 52px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.article-links h2 { margin-top: 0; font-size: 1.5rem; }
.article-links ul { margin: 0; padding-left: 1.2rem; color: #d4d4d8; }
.blog-footer {
  border-top: 1px solid var(--line);
  padding: 30px 0 48px;
  color: var(--muted);
  font-size: .86rem;
}
.blog-index { padding: 82px 0 100px; }
.blog-index h1 { margin: 0 0 18px; font-size: clamp(2.5rem, 7vw, 5rem); letter-spacing: -.06em; line-height: 1; }
.blog-index-intro { max-width: 680px; margin-bottom: 46px; color: var(--muted); font-size: 1.1rem; }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.blog-card { display: flex; min-height: 300px; flex-direction: column; justify-content: space-between; padding: 26px; border: 1px solid var(--line); border-radius: 24px; background: var(--card); text-decoration: none; transition: transform .25s ease, border-color .25s ease; }
.blog-card:hover { transform: translateY(-4px); border-color: rgba(249,115,22,.6); }
.blog-card h2 { margin: 16px 0 14px; font-size: 1.3rem; line-height: 1.25; }
.blog-card p { margin: 0; color: var(--muted); font-size: .92rem; line-height: 1.65; }
.blog-card span { margin-top: 26px; color: #fb923c; font-size: .88rem; font-weight: 700; }
@media (max-width: 760px) {
  .blog-navlinks { display: none; }
  .blog-hero { padding-top: 54px; }
  .blog-article { font-size: 1rem; }
  .course-list, .blog-grid { grid-template-columns: 1fr; }
  .course-callout { padding: 22px; }
}