:root {
  color-scheme: light;
  --paper: #f3f4ee;
  --ink: #203b30;
  --muted: #58665c;
  --lime: #d8f891;
  --line: #d7dcd2;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; }
button { font: inherit; }
.page-shell { max-width: 1320px; margin: 0 auto; padding: 0 64px; }
.site-header { display: flex; align-items: center; justify-content: space-between; min-height: 120px; border-bottom: 1px solid var(--line); gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 23px; font-weight: 650; letter-spacing: -.8px; text-decoration: none; }
.brand-mark { width: 44px; height: 44px; display: grid; place-content: center; grid-auto-flow: column; border-radius: 13px; background: var(--ink); color: white; font-size: 23px; font-weight: 700; }
.brand-mark span { color: var(--lime); }
.test-label { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; letter-spacing: .3px; white-space: nowrap; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #64883d; }
.hero { display: grid; grid-template-columns: 1.13fr 1fr; align-items: center; gap: 64px; padding: 76px 0 68px; }
.eyebrow { margin: 0 0 24px; color: var(--muted); font-size: 11px; font-weight: 650; letter-spacing: 1.7px; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(40px, 4.8vw, 65px); font-weight: 500; line-height: 1.09; letter-spacing: -3px; }
h1 span { color: #6d7d6d; }
.intro { max-width: 375px; margin: 25px 0 29px; font-size: 16px; line-height: 1.7; color: var(--muted); }
button { display: inline-flex; justify-content: space-between; align-items: center; min-width: 201px; min-height: 52px; padding: 14px 20px; border: 1px solid var(--ink); border-radius: 7px; background: var(--ink); color: white; font-size: 14px; font-weight: 600; cursor: pointer; transition: background .15s, color .15s; gap: 24px; }
button:hover:not(:disabled) { background: #365b48; }
button:disabled { opacity: .6; cursor: wait; }
button[data-checked="true"] { background: var(--lime); color: var(--ink); }
button[data-checked="true"]:hover { background: #c7ed78; }
:focus-visible { outline: 3px solid #689325; outline-offset: 5px; }
.test-result { min-height: 42px; max-width: 390px; margin: 14px 0 0; font-size: 12px; line-height: 1.6; color: var(--muted); }
.no-script { font-size: 13px; line-height: 1.5; }
.visual { aspect-ratio: 1 / 1.06; border-radius: 18px; padding: 27px 29px 25px; display: flex; flex-direction: column; justify-content: space-between; color: #d8f891; background: #254e3f; overflow: hidden; }
.visual-top { display: flex; justify-content: space-between; gap: 10px; font: 9px/1.4 ui-monospace, "SFMono-Regular", Consolas, monospace; letter-spacing: 1px; }
.chain { display: block; width: calc(100% + 30px); margin-left: -15px; flex: 1; min-height: 0; }
.visual-bottom { display: flex; align-items: flex-end; justify-content: space-between; color: #ecf1de; font-size: 17px; line-height: 1.35; letter-spacing: -.25px; }
.visual-arrow { font-size: 32px; line-height: 1; color: var(--lime); }
.details { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 30px 0 32px; gap: 30px; }
.details > div + div { border-left: 1px solid var(--line); padding-left: 30px; }
.detail-number { display: block; margin-bottom: 14px; color: #64755c; font: 11px ui-monospace, "SFMono-Regular", Consolas, monospace; }
h2 { margin: 0 0 7px; font-size: 15px; font-weight: 600; letter-spacing: -.15px; }
.details p { margin: 0; font-size: 12px; line-height: 1.5; color: var(--muted); }
footer { display: flex; justify-content: space-between; gap: 16px; padding: 28px 0; color: var(--muted); font-size: 11px; }
@media (min-width: 1400px) { .page-shell { padding-top: 20px; } }
@media (max-width: 950px) {
  .page-shell { padding: 0 32px; }
  .hero { gap: 32px; padding: 56px 0; }
  h1 { font-size: 48px; letter-spacing: -2.4px; }
  .visual { padding: 24px; }
}
@media (max-width: 700px) {
  .page-shell { padding: 0 24px; }
  .site-header { min-height: 91px; }
  .brand { font-size: 19px; gap: 9px; }
  .brand-mark { width: 36px; height: 36px; border-radius: 11px; font-size: 20px; }
  .test-label { font-size: 10px; }
  .hero { grid-template-columns: 1fr; gap: 28px; padding: 42px 0; }
  h1 { font-size: clamp(39px, 8.5vw, 58px); letter-spacing: -2px; }
  .intro { max-width: 410px; margin-top: 21px; font-size: 15px; }
  .test-result { min-height: 38px; }
  .visual { aspect-ratio: 1.15; max-width: 480px; width: 100%; justify-self: center; }
  .details { grid-template-columns: 1fr; gap: 23px; padding: 26px 0; }
  .details > div { display: grid; grid-template-columns: 32px 1fr; column-gap: 12px; }
  .details > div + div { border-left: none; padding-left: 0; }
  .detail-number { grid-row: 1 / 3; margin: 2px 0 0; }
  footer { flex-direction: column; gap: 9px; padding: 23px 0; }
}
@media (prefers-reduced-motion: reduce) { button { transition: none; } }