:root {
  color: #0c273e;
  background: #f2f8f8;
  font-family: system-ui, "Leelawadee UI", Tahoma, sans-serif;
  line-height: 1.65;
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; }
a { color: #005a62; }
a:focus-visible, button:focus-visible { outline: 3px solid #b45309; outline-offset: 4px; }
p { margin-block: 0 0.9rem; }
.wrap { width: min(100% - 2rem, 65rem); margin-inline: auto; }
.skip { position: absolute; top: 0.5rem; left: 1rem; padding: 0.6rem; background: #fff; z-index: 1; }
.skip:not(:focus) { transform: translateY(-160%); }
.site-header { background: #fff; border-bottom: 1px solid #cadcdd; }
.brand { display: flex; align-items: center; gap: 0.7rem; padding-block: 0.9rem; font-weight: 800; letter-spacing: 0.12em; }
.hero { margin-block: 1.25rem 2rem; padding: clamp(1.25rem, 5vw, 3.75rem); border-radius: 1.25rem; background: #0c273e; color: #fff; }
.status { display: inline-block; padding: 0.35rem 0.7rem; border-radius: 0.45rem; background: #d6f3ec; color: #0a413d; font-size: 0.9rem; font-weight: 750; }
h1, h2, h3 { line-height: 1.35; }
h1 { margin: 0.55rem 0 0.9rem; font-size: clamp(2rem, 6vw, 3.75rem); }
h2 { margin-block: 0 0.85rem; font-size: 1.5rem; }
h3 { margin-block: 0 0.45rem; font-size: 1.15rem; }
.hero > p:not(.status) { max-width: 37rem; color: #e2eff5; }
.install-link { display: inline-block; padding-block: 0.4rem; color: #a5f3df; text-underline-offset: 0.2em; }
main > section + section { margin-bottom: 2rem; }
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.card { padding: 1.1rem; border: 1px solid #cadcdd; border-radius: 0.85rem; background: #fff; }
.call { display: inline-block; min-height: 44px; padding: 0.5rem 1rem; border-radius: 0.6rem; background: #005c62; color: #fff; font-size: 1.15rem; font-weight: 750; text-decoration: none; }
.call:hover { background: #00474e; }
.source { display: block; width: fit-content; margin-top: 0.75rem; font-size: 0.9rem; }
.resource { display: grid; gap: 0.15rem; text-decoration: none; }
.resource strong { text-decoration: underline; text-underline-offset: 0.2em; }
.resource span { color: #34566b; }
.resource:hover { border-color: #005a62; }
.install ul { padding-inline-start: 1.4rem; }
.install li + li { margin-block-start: 0.4rem; }
.install-button { border: 0; cursor: pointer; font-family: inherit; }
.install-button[hidden] { display: none; }
.offline-ready { margin: 0; color: #005a62; }
.footer { padding-block: 1rem 1.5rem; border-top: 1px solid #cadcdd; font-size: 0.9rem; color: #34566b; }

@media (max-width: 39rem) {
  .cards { grid-template-columns: 1fr; }
}