:root {
  --science-accent: #1f9d55;
  --science-accent-soft: rgba(31, 157, 85, 0.08);
  --science-ink: #0d1411;
  --science-muted: #4a5752;
  --science-line: rgba(13, 20, 17, 0.1);
  --science-surface: #ffffff;
  --science-warm: #fafaf7;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--science-warm); color: var(--science-ink); font-family: "Inter", sans-serif; }
a { color: inherit; }
.science-shell { min-height: 100vh; overflow-x: hidden; }
.science-wrap { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.science-promo { padding: 9px 16px; background: var(--science-ink); color: #fff; text-align: center; font: 800 11px/1.4 "Inter", sans-serif; letter-spacing: .16em; text-transform: uppercase; }
.science-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--science-line); background: rgba(250, 250, 247, .94); backdrop-filter: blur(12px); }
.science-header-inner { min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.science-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--science-ink); font-size: 17px; font-weight: 900; text-decoration: none; }
.science-flame { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px; background: var(--science-accent); color: #fff; font-weight: 900; }
.science-nav { display: flex; align-items: center; gap: 8px; }
.science-nav a { padding: 9px 13px; border: 1px solid var(--science-line); border-radius: 999px; color: var(--science-ink); font-size: 12px; font-weight: 800; text-decoration: none; }
.science-nav a[aria-current="page"] { border-color: var(--science-accent); color: var(--science-accent); }
.science-nav .science-nav-primary { border-color: var(--science-ink); background: var(--science-ink); color: #fff; }
.science-hero { min-height: 78vh; display: grid; place-items: center; padding: 110px 0 90px; position: relative; text-align: center; }
.science-hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 50% 45%, var(--science-accent-soft), transparent 42%); pointer-events: none; }
.science-hero-content { position: relative; max-width: 900px; }
.science-eyebrow { margin: 0 0 18px; color: var(--science-accent); font-size: 11px; font-weight: 900; letter-spacing: .22em; line-height: 1.5; text-transform: uppercase; }
.science-title { margin: 0; font-size: clamp(58px, 10vw, 126px); font-weight: 900; letter-spacing: -.06em; line-height: .9; text-transform: uppercase; }
.science-title span { color: var(--science-accent); }
.science-lede { max-width: 650px; margin: 28px auto 0; color: var(--science-muted); font-size: clamp(17px, 2vw, 21px); line-height: 1.6; }
.science-stats { margin-top: 48px; display: grid; grid-template-columns: repeat(6, 1fr); border: 1px solid var(--science-line); background: var(--science-surface); }
.science-stat { padding: 22px 10px; border-right: 1px solid var(--science-line); }
.science-stat:last-child { border-right: 0; }
.science-stat strong { display: block; color: var(--science-accent); font-size: 28px; line-height: 1; }
.science-stat span { display: block; margin-top: 7px; color: var(--science-muted); font-size: 9px; font-weight: 800; letter-spacing: .08em; line-height: 1.4; text-transform: uppercase; }
.science-section { padding: 100px 0; border-top: 1px solid var(--science-line); background: var(--science-surface); }
.science-section-alt { background: #f1f7f2; }
.science-section-head { max-width: 720px; margin-bottom: 42px; }
.science-heading { margin: 0; font-size: clamp(38px, 6vw, 70px); font-weight: 900; letter-spacing: -.045em; line-height: 1; text-transform: uppercase; }
.science-intro { margin: 20px 0 0; color: var(--science-muted); font-size: 17px; line-height: 1.7; }
.science-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--science-line); border-left: 1px solid var(--science-line); }
.science-grid-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.science-card { min-width: 0; padding: 30px; border-right: 1px solid var(--science-line); border-bottom: 1px solid var(--science-line); background: var(--science-surface); }
.science-card:hover { background: var(--science-accent-soft); }
.science-tag { display: inline-block; margin-bottom: 16px; padding: 5px 9px; border: 1px solid var(--science-accent); color: var(--science-accent); font-size: 9px; font-weight: 900; letter-spacing: .12em; line-height: 1.2; text-transform: uppercase; }
.science-card h3 { margin: 0; font-size: 20px; line-height: 1.35; }
.science-meta { margin: 10px 0 0; color: var(--science-muted); font-size: 11px; font-weight: 800; line-height: 1.6; }
.science-card p { margin: 14px 0 0; color: var(--science-muted); line-height: 1.7; }
.science-link { display: inline-flex; margin-top: 18px; color: var(--science-accent); font-size: 11px; font-weight: 900; letter-spacing: .08em; line-height: 1.4; text-decoration: none; text-transform: uppercase; }
.science-claims { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--science-line); border-left: 1px solid var(--science-line); }
.science-claim { padding: 20px; border-right: 1px solid var(--science-line); border-bottom: 1px solid var(--science-line); background: var(--science-surface); }
.science-claim small { display: block; margin-bottom: 8px; color: var(--science-accent); font-size: 9px; font-weight: 900; letter-spacing: .12em; line-height: 1.4; text-transform: uppercase; }
.science-claim p { margin: 0; line-height: 1.5; }
.science-band { padding: 62px 20px; background: var(--science-accent); color: #fff; text-align: center; }
.science-band h2 { margin: 0; font-size: clamp(38px, 6vw, 72px); font-weight: 900; letter-spacing: -.045em; line-height: 1; text-transform: uppercase; }
.science-band p { max-width: 670px; margin: 20px auto 0; line-height: 1.7; }
.science-regions { max-width: 1050px; margin: 28px auto 0; font-size: 10px; font-weight: 900; letter-spacing: .08em; line-height: 2; text-transform: uppercase; }
.science-callout { margin-bottom: 2px; padding: 32px; border: 1px solid var(--science-accent); background: var(--science-accent-soft); }
.science-callout h3 { margin: 0; font-size: 24px; }
.science-callout p { max-width: 900px; margin: 14px 0 0; color: var(--science-muted); line-height: 1.7; }
.science-footnote { margin-top: 24px; padding: 20px; border: 1px solid var(--science-line); color: var(--science-muted); font-size: 12px; line-height: 1.7; }
.science-footer { padding: 54px 0 34px; border-top: 1px solid var(--science-line); background: var(--science-ink); color: #cbd3cf; }
.science-footer-grid { display: grid; grid-template-columns: 1.1fr 2fr; gap: 50px; }
.science-footer .science-brand { color: #fff; }
.science-footer-links { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 18px; }
.science-footer-links a { color: #fff; font-size: 13px; font-weight: 700; text-decoration: none; }
.science-disclaimer { margin: 0; font-size: 12px; line-height: 1.75; }
.science-copyright { margin-top: 34px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.13); font-size: 10px; font-weight: 800; letter-spacing: .08em; line-height: 1.6; text-transform: uppercase; }

@media (max-width: 900px) {
  .science-stats { grid-template-columns: repeat(3, 1fr); }
  .science-stat:nth-child(3) { border-right: 0; }
  .science-stat:nth-child(-n+3) { border-bottom: 1px solid var(--science-line); }
  .science-grid-three, .science-claims { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .science-footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .science-wrap { width: min(100% - 28px, 1180px); }
  .science-header-inner { min-height: 60px; }
  .science-nav a[aria-current="page"] { display: none; }
  .science-nav a { padding: 8px 10px; }
  .science-hero { min-height: 0; padding: 80px 0 70px; }
  .science-stats { grid-template-columns: repeat(2, 1fr); }
  .science-stat:nth-child(2n) { border-right: 0; }
  .science-stat:nth-child(3) { border-right: 1px solid var(--science-line); }
  .science-stat:nth-child(-n+4) { border-bottom: 1px solid var(--science-line); }
  .science-section { padding: 72px 0; }
  .science-grid, .science-grid-three, .science-claims { grid-template-columns: 1fr; }
  .science-card { padding: 24px; }
  .science-footer { padding-bottom: 28px; }
}