:root {
  color-scheme: light;
  --lab-ink: #111827;
  --lab-muted: #5f6b7d;
  --lab-blue: #2455b5;
  --lab-blue-soft: #eef4ff;
  --lab-green: #157a5a;
  --lab-line: #dce3ec;
  --lab-paper: #ffffff;
  --lab-bg: #f5f7fb;
  --lab-warm: #fff8ec;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--lab-ink);
  background: var(--lab-bg);
  font-family: Inter, Manrope, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; }

.lab-page { min-height: 100vh; }

.lab-header,
.lab-footer,
.lab-hero,
.lab-section,
.lab-method,
.lab-article-page {
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
}

.lab-header {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--lab-line);
}

.lab-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--lab-ink);
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

.lab-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--lab-ink);
  font-size: 16px;
}

.lab-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 22px;
}

.lab-nav a {
  color: #475467;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.lab-nav a:hover,
.lab-nav a[aria-current="page"] { color: var(--lab-blue); }

.lab-hero {
  padding: 88px 0 72px;
  border-bottom: 1px solid var(--lab-line);
}

.lab-kicker {
  margin: 0 0 12px;
  color: var(--lab-blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.lab-hero h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(52px, 9vw, 104px);
  line-height: 0.98;
  letter-spacing: 0;
}

.lab-hero-lead {
  max-width: 760px;
  margin: 28px 0 42px;
  color: #344054;
  font-size: clamp(21px, 2.5vw, 30px);
  line-height: 1.35;
}

.lab-principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--lab-line);
  border-bottom: 1px solid var(--lab-line);
}

.lab-principles > div {
  min-width: 0;
  padding: 20px 24px 20px 0;
}

.lab-principles > div + div {
  padding-left: 24px;
  border-left: 1px solid var(--lab-line);
}

.lab-principles strong,
.lab-principles span { display: block; }

.lab-principles strong { margin-bottom: 4px; font-size: 15px; }
.lab-principles span { color: var(--lab-muted); font-size: 14px; line-height: 1.45; }

.lab-section { padding: 72px 0; }

.lab-section-head {
  display: grid;
  grid-template-columns: minmax(180px, 0.34fr) minmax(0, 1fr);
  gap: 32px;
  margin-bottom: 32px;
}

.lab-section-head h2,
.lab-method h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
  letter-spacing: 0;
}

.lab-story-list { border-top: 1px solid var(--lab-line); }

.lab-story-card {
  display: grid;
  grid-template-columns: minmax(150px, 0.28fr) minmax(0, 1fr) minmax(150px, 0.25fr);
  gap: 32px;
  align-items: start;
  padding: 34px 0;
  border-bottom: 1px solid var(--lab-line);
}

.lab-story-meta,
.lab-story-foot {
  display: grid;
  gap: 6px;
  color: var(--lab-muted);
  font-size: 13px;
}

.lab-story-meta span { color: var(--lab-green); font-weight: 750; text-transform: uppercase; }
.lab-story-card h2 { margin: 0 0 12px; font-size: clamp(24px, 3vw, 34px); line-height: 1.17; }
.lab-story-card h2 a { text-decoration: none; }
.lab-story-card h2 a:hover { color: var(--lab-blue); }
.lab-story-main p { margin: 0; color: #475467; font-size: 17px; }
.lab-story-foot { align-content: start; justify-items: start; }
.lab-story-foot a { margin-top: 12px; color: var(--lab-blue); font-weight: 750; text-underline-offset: 4px; }

.lab-upcoming { border-top: 1px solid var(--lab-line); }

.lab-upcoming-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.lab-upcoming-list > div { min-width: 0; padding: 22px; border: 1px solid var(--lab-line); border-radius: 8px; background: var(--lab-paper); }
.lab-upcoming-list span { color: var(--lab-green); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.lab-upcoming-list p { margin: 10px 0 0; font-size: 17px; font-weight: 700; line-height: 1.4; }

.lab-method {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1fr);
  gap: 64px;
  padding: 72px 0 80px;
  border-top: 1px solid var(--lab-line);
}

.lab-method ol { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--lab-line); }
.lab-method li { display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--lab-line); }
.lab-method li span { color: var(--lab-blue); font-size: 13px; font-weight: 800; }
.lab-method li p { margin: 0; color: #344054; }

.lab-footer {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  padding: 32px 0 40px;
  border-top: 1px solid var(--lab-line);
  color: var(--lab-muted);
  font-size: 13px;
}

.lab-footer > div { display: grid; gap: 4px; }
.lab-footer strong { color: var(--lab-ink); }
.lab-footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; align-content: start; gap: 8px 18px; }
.lab-footer a { text-decoration: none; }
.lab-footer a:hover { color: var(--lab-blue); text-decoration: underline; text-underline-offset: 3px; }

.lab-article-page { padding: 58px 0 76px; }
.lab-article { width: min(760px, 100%); margin: 0 auto; }
.lab-back { display: inline-block; margin-bottom: 42px; color: var(--lab-blue); font-size: 14px; font-weight: 750; text-decoration: none; }
.lab-back::before { content: "←"; margin-right: 8px; }
.lab-article-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--lab-muted); font-size: 13px; }
.lab-article-meta span:first-child { color: var(--lab-green); font-weight: 800; text-transform: uppercase; }
.lab-article-header h1 { margin: 18px 0; font-size: clamp(40px, 6vw, 66px); line-height: 1.04; letter-spacing: 0; }
.lab-article-header > p { margin: 0; color: #475467; font-size: clamp(20px, 2.5vw, 25px); line-height: 1.45; }
.lab-article-body { margin-top: 56px; }
.lab-article-body p,
.lab-article-body li { font-size: 18px; line-height: 1.72; }
.lab-article-lead { padding-bottom: 8px; }
.lab-article-lead p:first-child::first-letter { float: left; margin: 8px 10px 0 0; color: var(--lab-blue); font-size: 64px; font-weight: 800; line-height: 0.75; }
.lab-article-section { margin-top: 54px; }
.lab-article-section h2 { margin: 0 0 20px; font-size: 30px; line-height: 1.2; letter-spacing: 0; }
.lab-article-section p { margin: 0 0 18px; }
.lab-article-section ul { margin: 24px 0; padding-left: 24px; }
.lab-article-section li + li { margin-top: 10px; }
.lab-fact { margin: 42px 0; padding: 24px 26px; border-left: 4px solid var(--lab-blue); border-radius: 0 8px 8px 0; background: var(--lab-blue-soft); }
.lab-fact strong { color: var(--lab-blue); font-size: 13px; text-transform: uppercase; }
.lab-fact p { margin: 8px 0 0; font-size: 20px; font-weight: 650; line-height: 1.5; }
.lab-article-steps { margin: 28px 0; padding: 0; list-style: none; border-top: 1px solid var(--lab-line); }
.lab-article-steps li { display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--lab-line); }
.lab-article-steps li > span { color: var(--lab-blue); font-size: 13px; font-weight: 800; }
.lab-article-steps strong { display: block; margin-bottom: 6px; font-size: 19px; }
.lab-article-steps p { margin: 0; color: #475467; font-size: 16px; line-height: 1.6; }
.lab-closing { padding: 30px; border-radius: 8px; background: var(--lab-warm); }
.lab-article-end { display: flex; justify-content: space-between; gap: 24px; align-items: center; margin-top: 60px; padding-top: 28px; border-top: 1px solid var(--lab-line); }
.lab-article-end p { margin: 0; }
.lab-article-end a { flex: none; padding: 10px 14px; border: 1px solid #b9c8e8; border-radius: 8px; color: var(--lab-blue); font-size: 14px; font-weight: 750; text-decoration: none; background: #fff; }
.lab-disclaimer { width: min(760px, 100%); margin: 36px auto 0; padding-top: 20px; border-top: 1px solid var(--lab-line); color: var(--lab-muted); font-size: 13px; }

@media (max-width: 840px) {
  .lab-principles { grid-template-columns: 1fr; }
  .lab-principles > div { padding: 16px 0; }
  .lab-principles > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--lab-line); }
  .lab-section-head,
  .lab-story-card,
  .lab-method { grid-template-columns: 1fr; }
  .lab-story-card { gap: 12px; }
  .lab-story-foot { grid-template-columns: 1fr auto; align-items: center; }
  .lab-story-foot a { margin-top: 0; }
  .lab-upcoming-list { grid-template-columns: 1fr; }
  .lab-method { gap: 30px; }
}

@media (max-width: 620px) {
  .lab-header,
  .lab-footer,
  .lab-hero,
  .lab-section,
  .lab-method,
  .lab-article-page { width: min(100% - 28px, 1120px); }
  .lab-header { align-items: flex-start; padding: 16px 0; }
  .lab-nav { gap: 6px 12px; }
  .lab-nav a:first-child { display: none; }
  .lab-nav a:last-child { display: none; }
  .lab-hero { padding: 58px 0 48px; }
  .lab-hero h1 { font-size: 50px; }
  .lab-hero-lead { margin: 22px 0 32px; font-size: 21px; }
  .lab-section,
  .lab-method { padding: 52px 0; }
  .lab-section-head { gap: 4px; }
  .lab-story-card { padding: 26px 0; }
  .lab-story-foot { grid-template-columns: 1fr; }
  .lab-footer { flex-direction: column; }
  .lab-footer nav { justify-content: flex-start; }
  .lab-article-page { padding: 38px 0 56px; }
  .lab-back { margin-bottom: 30px; }
  .lab-article-header h1 { font-size: 40px; }
  .lab-article-header > p { font-size: 19px; }
  .lab-article-body { margin-top: 42px; }
  .lab-article-body p,
  .lab-article-body li { font-size: 17px; }
  .lab-article-section { margin-top: 42px; }
  .lab-article-section h2 { font-size: 27px; }
  .lab-fact { padding: 20px; }
  .lab-fact p { font-size: 18px; }
  .lab-closing { padding: 22px; }
  .lab-article-end { align-items: flex-start; flex-direction: column; }
}