:root {
  color-scheme: dark;
  --bg: #171a18;
  --panel: #20231f;
  --line: #33382e;
  --text: #eceee7;
  --muted: #a2ab99;
  --accent: #d4ef9d;
  --mono: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
a { color: inherit; text-underline-offset: 5px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
a:hover { color: var(--accent); }
::selection { background: #566a3c; color: #f3ffe4; }
.shell { width: min(1360px, 100% - 96px); margin-inline: auto; }
.topbar { min-height: 96px; display: flex; align-items: center; justify-content: space-between; gap: 32px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 13px; text-decoration: none; font-size: 13px; font-weight: 750; letter-spacing: 1.8px; }
.brand svg { width: 30px; height: 33px; color: var(--accent); flex-shrink: 0; }
.brand-sub { display: block; margin-top: 7px; font: 8px var(--mono); letter-spacing: 1.45px; color: var(--muted); }
nav { display: flex; align-items: center; gap: 30px; }
nav a { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; text-decoration: none; font-size: 12px; color: #c2cbbb; }
.github-link { color: var(--muted); padding-left: 30px; border-left: 1px solid var(--line); }
.hero { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 34px; padding: 80px 0 76px; }
.hero-copy { padding: 12px 0; }
.eyebrow { display: flex; align-items: center; gap: 9px; font: 10px/1.7 var(--mono); letter-spacing: 1.6px; color: var(--muted); margin: 0 0 23px; }
.status-dot { display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
h1 { margin: 0; font-size: clamp(44px, 4.65vw, 70px); font-weight: 450; line-height: 1.1; letter-spacing: -3.5px; }
h1 em { color: var(--accent); font-weight: 400; font-family: Georgia, "Times New Roman", serif; }
.lead { max-width: 440px; color: var(--muted); font-size: 16px; line-height: 1.8; margin: 27px 0 29px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 22px; padding: 13px 18px; border: 1px solid #48513e; border-radius: 6px; text-decoration: none; font-size: 12px; font-weight: 600; }
.primary { background: var(--accent); border-color: var(--accent); color: #253016; }
.primary:hover { background: #e1ffad; color: #253016; }
.secondary:hover { background: #292f24; border-color: #708357; }
.caption { font-size: 10px; line-height: 1.7; color: var(--muted); margin: 16px 0 0; }
.formation-study { margin: 0; min-width: 0; border: 1px solid #3b4433; border-radius: 9px; background: #161c14; overflow: hidden; }
.study-heading { display: flex; justify-content: space-between; gap: 16px; padding: 18px 19px; border-bottom: 1px solid var(--line); font: 8px var(--mono); letter-spacing: .7px; color: var(--muted); }
.study-heading>span:first-child { display: flex; align-items: center; gap: 8px; }
.formation-art { display: block; width: 100%; height: auto; }
figcaption { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; padding: 17px 19px; border-top: 1px solid var(--line); font-size: 10px; color: var(--muted); background: #20261c; }
figcaption>span:first-child { display: flex; align-items: center; gap: 8px; }
.path-dot { display: inline-block; width: 6px; height: 6px; border: 1px solid var(--accent); }
.study-tag { font: 8px var(--mono); letter-spacing: .6px; color: #c8d6b7; }
.possibilities { border-top: 1px solid var(--line); padding: 45px 0 50px; }
.section-heading .eyebrow { margin-bottom: 13px; font-size: 9px; }
h2 { margin: 0; font-weight: 450; font-size: 28px; letter-spacing: -.8px; line-height: 1.3; }
.steps { margin-top: 34px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.steps article { padding-right: 38px; }
.steps article+article { padding-left: 34px; border-left: 1px solid var(--line); }
.steps article:last-child { padding-right: 0; }
.step-number { color: #bed09f; font: 9px var(--mono); letter-spacing: 1px; }
h3 { font-size: 16px; font-weight: 500; margin: 18px 0 12px; }
.steps p, .guide-card p:not(.eyebrow) { font-size: 13px; line-height: 1.85; color: var(--muted); margin: 0; max-width: 570px; }
code { font: .95em var(--mono); color: #c8d6b7; }
.guide-card { display: flex; align-items: center; justify-content: space-between; gap: 38px; padding: 33px 36px; margin: 0 0 60px; border: 1px solid #3b4433; border-radius: 8px; background: var(--panel); }
.guide-card .eyebrow { font-size: 9px; margin-bottom: 10px; }
.guide-card h2 { margin-bottom: 10px; }
.guide-card .button { flex-shrink: 0; }
.footer { border-top: 1px solid var(--line); padding: 24px 0; display: flex; align-items: center; justify-content: space-between; gap: 25px; color: var(--muted); font: 9px var(--mono); letter-spacing: 1px; }
.footer-note { margin-left: 18px; font-family: "Segoe UI", system-ui, sans-serif; letter-spacing: 0; }
.footer nav { gap: 24px; }
.footer nav a { font: 11px "Segoe UI", system-ui, sans-serif; letter-spacing: 0; }
.skip { position: fixed; top: -100px; left: 16px; z-index: 10; padding: 12px; background: var(--accent); color: #253016; }
.skip:focus { top: 12px; }
@media (min-width: 1600px) { .hero { gap: 70px; padding-block: 96px; } }
@media (max-width: 1100px) {
  .shell { width: calc(100% - 56px); }
  .hero { gap: 26px; padding-block: 56px; }
  h1 { letter-spacing: -2.5px; }
  .study-heading>span:last-child { display: none; }
  .steps article { padding-right: 24px; }
  .steps article+article { padding-left: 24px; }
  .footer-note { display: block; margin: 8px 0 0; }
}
@media (max-width: 760px) {
  .topbar { min-height: 110px; flex-wrap: wrap; gap: 8px 22px; padding-block: 20px 8px; }
  .topbar nav { width: 100%; gap: 24px; }
  .github-link { margin-left: auto; padding-left: 0; border: 0; }
  .hero { grid-template-columns: 1fr; gap: 32px; padding-block: 36px 42px; }
  .hero-copy { padding: 0; }
  h1 { font-size: clamp(44px, 8vw, 64px); }
  .lead { max-width: 510px; margin-block: 22px; }
  .formation-study { max-width: 580px; width: 100%; justify-self: center; }
  .study-heading>span:last-child { display: inline; }
  .possibilities { padding-block: 34px; }
  .steps { grid-template-columns: 1fr; gap: 24px; margin-top: 28px; }
  .steps article { padding: 0; }
  .steps article+article { border-left: 0; border-top: 1px solid var(--line); padding: 24px 0 0; }
  h3 { margin-block: 12px 8px; }
  .guide-card { flex-direction: column; align-items: flex-start; padding: 25px; gap: 22px; margin-bottom: 38px; }
  .footer { flex-wrap: wrap; gap: 13px; }
  .footer nav { gap: 25px; }
}
@media (max-width: 400px) {
  .shell { width: calc(100% - 36px); }
  .brand-sub { font-size: 7px; }
  .topbar nav { gap: 18px; }
  .topbar nav a { font-size: 11px; }
  .eyebrow { font-size: 9px; }
  h1 { font-size: 42px; letter-spacing: -2px; }
  .lead { font-size: 15px; }
  .actions .button { width: 100%; justify-content: space-between; }
  .study-heading { padding: 15px; font-size: 7px; }
  .study-tag { display: none; }
  h2 { font-size: 25px; }
}