:root {
  --navy-950: #051524;
  --navy-900: #071d33;
  --navy-800: #0c2e4e;
  --gold-600: #b98a32;
  --gold-500: #d4a64a;
  --gold-400: #e5c477;
  --ink: #102234;
  --muted: #607082;
  --line: #dfe6ec;
  --paper: #fff;
  --mist: #f4f7f9;
  --page: min(1120px, calc(100% - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.container { width: var(--page); margin-inline: auto; }
.course-header { height: 76px; color: white; background: var(--navy-950); border-bottom: 1px solid rgba(255,255,255,.1); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.course-brand { position: relative; width: 210px; height: 58px; display: block; overflow: hidden; }
.course-brand img { position: absolute; top: 50%; left: 0; width: 210px; max-width: none; transform: translateY(-48%); }
.back-link { display: inline-flex; align-items: center; gap: 10px; color: rgba(255,255,255,.78); font-size: .9rem; font-weight: 650; transition: color .2s ease; }
.back-link:hover { color: var(--gold-400); }
.back-link svg { width: 18px; height: 18px; }
.back-link:focus-visible, .button:focus-visible { outline: 3px solid rgba(212,166,74,.58); outline-offset: 4px; }

.course-hero { position: relative; padding: 104px 0 96px; color: white; background: var(--navy-950); overflow: hidden; isolation: isolate; }
.course-hero::before { content: ""; position: absolute; z-index: -1; top: -220px; right: -90px; width: 590px; height: 590px; border: 1px solid rgba(212,166,74,.2); border-radius: 50%; box-shadow: 0 0 0 90px rgba(212,166,74,.025), 0 0 0 180px rgba(212,166,74,.018); }
.course-hero::after { content: ""; position: absolute; z-index: -1; inset: auto 0 0; height: 180px; background: linear-gradient(transparent, rgba(12,46,78,.32)); }
.eyebrow { display: inline-flex; align-items: center; gap: 11px; margin: 0 0 24px; color: var(--gold-400); font-size: .76rem; font-weight: 760; letter-spacing: .17em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 30px; height: 1px; background: currentColor; }
.course-hero h1 { max-width: 920px; margin: 0; font-size: clamp(2.8rem, 6vw, 6rem); font-weight: 610; letter-spacing: -.062em; line-height: .98; text-wrap: balance; }
.course-lead { max-width: 710px; margin: 30px 0 0; color: rgba(255,255,255,.68); font-size: clamp(1.05rem, 1.8vw, 1.26rem); }

.course-main { padding: 102px 0 116px; }
.summary-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(340px, .65fr); gap: clamp(54px, 8vw, 100px); align-items: start; }
.section-label { margin: 0 0 18px; color: var(--gold-600); font-size: .76rem; font-weight: 760; letter-spacing: .16em; text-transform: uppercase; }
.section-title { margin: 0; color: var(--navy-900); font-size: clamp(2rem, 4vw, 3.7rem); font-weight: 650; letter-spacing: -.05em; line-height: 1.05; text-wrap: balance; }
.summary-copy > p:last-child { max-width: 680px; margin: 28px 0 0; color: var(--muted); font-size: 1.08rem; line-height: 1.82; }
.audience-card { padding: 34px; color: white; background: var(--navy-900); border-radius: 22px; box-shadow: 0 24px 70px rgba(6,29,51,.1); }
.audience-card p { margin: 0 0 16px; color: var(--gold-400); font-size: .73rem; font-weight: 750; letter-spacing: .15em; text-transform: uppercase; }
.audience-card strong { display: block; font-size: 1.28rem; font-weight: 610; line-height: 1.45; }

.content-block { margin-top: 96px; }
.topic-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 42px; }
.topic { position: relative; min-height: 154px; padding: 30px 30px 28px 72px; background: var(--mist); border: 1px solid rgba(7,29,51,.06); border-radius: 18px; }
.topic span { position: absolute; top: 31px; left: 28px; color: var(--gold-600); font-size: .72rem; font-weight: 780; letter-spacing: .12em; }
.topic h3 { margin: 0 0 10px; color: var(--navy-900); font-size: 1.07rem; line-height: 1.35; }
.topic p { margin: 0; color: var(--muted); font-size: .92rem; line-height: 1.62; }

.methodology { margin-top: 100px; padding: clamp(38px, 6vw, 70px); color: white; background: var(--navy-800); border-radius: 28px; overflow: hidden; }
.methodology .section-label { color: var(--gold-400); }
.methodology .section-title { max-width: 780px; color: white; }
.method-intro { max-width: 760px; margin: 26px 0 0; color: rgba(255,255,255,.64); font-size: 1.04rem; }
.method-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 50px; border-top: 1px solid rgba(255,255,255,.16); }
.method-step { min-height: 160px; padding: 28px 24px 0 0; }
.method-step + .method-step { padding-left: 24px; border-left: 1px solid rgba(255,255,255,.16); }
.method-step span { display: block; margin-bottom: 18px; color: var(--gold-400); font-size: .72rem; font-weight: 760; letter-spacing: .13em; }
.method-step strong { display: block; font-size: 1rem; font-weight: 610; line-height: 1.45; }

.course-cta { display: flex; align-items: center; justify-content: space-between; gap: 42px; margin-top: 92px; padding-top: 46px; border-top: 1px solid var(--line); }
.course-cta h2 { max-width: 650px; margin: 0; color: var(--navy-900); font-size: clamp(1.7rem, 3.3vw, 3rem); font-weight: 650; letter-spacing: -.045em; line-height: 1.08; }
.button { display: inline-flex; min-height: 52px; flex: 0 0 auto; align-items: center; justify-content: center; gap: 10px; padding: 0 23px; color: var(--navy-950); background: var(--gold-500); border-radius: 999px; font-size: .92rem; font-weight: 740; transition: transform .25s ease, background .25s ease; }
.button:hover { background: var(--gold-400); transform: translateY(-2px); }
.button svg { width: 18px; height: 18px; }
.course-footer { padding: 30px 0; color: #7b8895; background: var(--mist); font-size: .82rem; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-brand { color: var(--navy-900); font-weight: 760; }
.footer-brand span { color: var(--gold-600); }

@media (max-width: 820px) {
  .summary-grid { grid-template-columns: 1fr; }
  .audience-card { max-width: 620px; }
  .method-steps { grid-template-columns: repeat(2, 1fr); }
  .method-step:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.16); }
  .method-step:nth-child(4) { border-top: 1px solid rgba(255,255,255,.16); }
  .course-cta { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 600px) {
  :root { --page: calc(100% - 32px); }
  .course-header { height: 70px; }
  .course-brand { width: 174px; height: 54px; }
  .course-brand img { width: 174px; }
  .back-link span { display: none; }
  .course-hero { padding: 76px 0 74px; }
  .course-hero h1 { font-size: clamp(2.65rem, 13vw, 4.25rem); }
  .course-main { padding: 78px 0 86px; }
  .topic-grid { grid-template-columns: 1fr; }
  .topic { min-height: auto; }
  .methodology { margin-inline: -4px; border-radius: 22px; }
  .method-steps { grid-template-columns: 1fr; }
  .method-step, .method-step + .method-step { min-height: 0; padding: 24px 0; border-top: 1px solid rgba(255,255,255,.16); border-left: 0; }
  .method-step:first-child { border-top: 0; }
  .course-cta { margin-top: 72px; }
  .button { width: 100%; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}