:root {
  color-scheme: light;
  font-family: "Helvetica Neue", Arial, sans-serif;
  color: #111312;
  background: #fff;
}
* { box-sizing: border-box; }
body { margin: 0; }
main {
  width: min(1120px, 100%);
  min-height: 100svh;
  margin-inline: auto;
  padding: clamp(28px, 6vw, 80px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(36px, 6vw, 72px);
}
h1 {
  margin: 0;
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: -.045em;
  font-weight: 750;
}
p { margin: 24px 0 0; color: #4f5653; font-size: 18px; }
nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.version {
  min-height: 184px;
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 2px solid #111312;
  border-radius: 0;
  background: #fff;
  color: #111312;
  font: 700 clamp(24px, 3vw, 32px)/1.2 "Helvetica Neue", Arial, sans-serif;
  text-decoration: none;
  text-align: center;
}
a.version:hover { background: #3ff0b4; }
a.version:focus-visible { outline: 3px solid #111312; outline-offset: 5px; background: #3ff0b4; }
.version:disabled { background: #f3f4f2; border-color: #d4d9d6; color: #59615d; }
.version span { font-size: 14px; font-weight: 400; }
@media (max-width: 650px) {
  nav { grid-template-columns: 1fr; gap: 14px; }
  .version { min-height: 120px; }
}