:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #1d1d1f;
  background: #fff;
  font-synthesis: none;
}
* { box-sizing: border-box; }
body { margin: 0; }
body { min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; }
nav { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; }
nav a[aria-current="page"] { color: #1d1d1f; font-weight: 600; }
a { color: #0066cc; text-underline-offset: 0.2em; }
a:focus-visible { outline: 3px solid #0066cc; outline-offset: 6px; border-radius: 3px; }
.shell { width: min(100% - 48px, 1000px); margin-inline: auto; }
.skip-link { position: absolute; top: 12px; left: 12px; padding: 12px; background: #fff; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
header { border-bottom: 1px solid #e8e8ed; }
header .shell { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 24px; }
.brand { color: #1d1d1f; font-size: 21px; font-weight: 650; letter-spacing: -0.6px; text-decoration: none; }
nav a { color: #515154; font-size: 14px; text-decoration: none; }
nav a:hover { text-decoration: underline; }
.intro { max-width: 770px; padding-block: 104px 76px; }
.eyebrow { margin: 0 0 20px; color: #64646a; font-size: 15px; font-weight: 500; }
h1 { margin: 0; font-size: clamp(42px, 6.5vw, 72px); line-height: 1.08; font-weight: 650; letter-spacing: -0.045em; text-wrap: balance; }
.intro > p:not(.eyebrow) { max-width: 590px; margin: 28px 0 0; color: #64646a; font-size: 21px; line-height: 1.6; }
.projects { padding-bottom: 104px; }
.section-title { margin: 0 0 24px; font-size: 20px; font-weight: 600; letter-spacing: -0.4px; }
.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.project { display: flex; flex-direction: column; align-items: flex-start; padding: 36px; background: #f5f5f7; border-radius: 20px; }
.category { margin: 0 0 28px; color: #64646a; font-size: 14px; }
h3 { margin: 0; font-size: 32px; font-weight: 600; letter-spacing: -1px; }
.description { max-width: 330px; margin: 16px 0 28px; color: #64646a; font-size: 17px; line-height: 1.65; }
.project a { margin-top: auto; font-size: 16px; font-weight: 500; text-decoration: none; }
.project a:hover { text-decoration: underline; }
footer { border-top: 1px solid #e8e8ed; }
footer .shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; padding-block: 28px; color: #64646a; font-size: 14px; line-height: 1.5; }
footer p { margin: 0; }
footer a { color: inherit; }
.product-nav { border-bottom: 1px solid #e8e8ed; }
.product-nav .shell { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; padding-block: 18px; }
.product-name { color: #1d1d1f; font-size: 18px; font-weight: 600; text-decoration: none; letter-spacing: -0.4px; }
.product-nav nav a { min-height: 28px; display: inline-flex; align-items: center; }
.actions { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 12px 22px; background: #0066cc; color: #fff; border-radius: 25px; text-decoration: none; font-size: 16px; font-weight: 500; }
.button:hover { background: #0058b0; }
.text-link { font-size: 16px; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; padding-block: 40px 64px; border-top: 1px solid #e8e8ed; }
.feature-grid h2 { margin: 0 0 14px; font-size: 22px; font-weight: 600; letter-spacing: -0.6px; }
.feature-grid p { margin: 0; color: #64646a; font-size: 17px; line-height: 1.65; }
.notice { margin-bottom: 88px; padding: 28px 32px; border-radius: 18px; background: #f5f5f7; }
.notice h2 { margin: 0 0 10px; font-size: 20px; font-weight: 600; letter-spacing: -0.4px; }
.notice p { margin: 0; color: #515154; font-size: 17px; line-height: 1.65; }
.article { max-width: 720px; padding-block: 64px 88px; }
.article h1 { font-size: clamp(38px, 5vw, 56px); }
.article .lead { margin: 24px 0 0; font-size: 20px; line-height: 1.6; color: #64646a; }
.article .meta { margin: 18px 0 0; font-size: 14px; line-height: 1.6; color: #64646a; }
.article section { margin-top: 40px; }
.article h2 { margin: 0 0 14px; font-size: 23px; font-weight: 600; line-height: 1.3; letter-spacing: -0.5px; }
.article p, .article li { color: #515154; font-size: 17px; line-height: 1.75; }
.article p { margin: 12px 0; }
.article ul { padding-left: 24px; margin: 14px 0; }
.article li + li { margin-top: 10px; }
.article a { overflow-wrap: anywhere; }
.article .summary { margin-top: 32px; padding: 24px 28px; border-radius: 18px; background: #f5f5f7; }
.article .summary p { margin: 0; }
.contact { margin-top: 32px; padding: 28px 32px; background: #f5f5f7; border-radius: 18px; }
.contact .button { color: #fff; }
.contact .email { display: block; margin-top: 16px; font-size: 16px; }
.faq { margin-top: 20px; border-top: 1px solid #e8e8ed; }
.faq details { border-bottom: 1px solid #e8e8ed; padding-block: 20px; }
.faq summary { cursor: pointer; font-size: 18px; font-weight: 500; line-height: 1.5; }
.faq summary:focus-visible { outline: 3px solid #0066cc; outline-offset: 4px; border-radius: 3px; }
.faq details p { margin: 14px 0 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; }
@media (max-width: 640px) {
  .shell { width: calc(100% - 40px); }
  header .shell { min-height: 68px; }
  .intro { padding-block: 72px 52px; }
  .intro > p:not(.eyebrow) { font-size: 19px; }
  .project-grid { grid-template-columns: 1fr; gap: 20px; }
  .project { padding: 28px; }
  .projects { padding-bottom: 64px; }
  nav { gap: 18px; }
  .feature-grid { grid-template-columns: 1fr; padding-block: 32px 40px; gap: 28px; }
  .notice { padding: 24px; margin-bottom: 56px; }
  .article { padding-block: 48px 64px; }
  .article .summary, .contact { padding: 24px; }
}