:root {
  --ink: #151925;
  --surface: #242a3b;
  --paper: #f5f0e4;
  --muted: #aeb4c5;
  --coral: #ff626c;
  --cyan: #25becb;
  --yellow: #ffca3e;
  --lime: #73d843;
}

* { box-sizing: border-box; }
html { background: var(--ink); }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--paper);
  background: linear-gradient(90deg, var(--coral) 0 18px, transparent 18px calc(100% - 18px), var(--yellow) calc(100% - 18px)), var(--ink);
  font-family: ui-rounded, "Arial Rounded MT Bold", system-ui, sans-serif;
  letter-spacing: 0;
}
a { color: inherit; }
main { width: min(920px, calc(100% - 64px)); margin: 0 auto; padding: 72px 0 40px; }
.hero { max-width: 700px; }
.app-icon { display: block; width: 112px; height: 112px; margin-bottom: 28px; border-radius: 24px; box-shadow: 0 14px 0 #090c13; }
.eyebrow { margin: 0 0 8px; color: var(--yellow); font-size: .9rem; font-weight: 700; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(3.2rem, 9vw, 6.2rem); line-height: .95; font-weight: 800; }
.lede { max-width: 650px; margin: 22px 0 0; color: var(--muted); font-size: clamp(1.1rem, 3vw, 1.45rem); line-height: 1.45; }
.link-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 56px; }
.resource { --accent: var(--coral); position: relative; min-height: 190px; padding: 28px; overflow: hidden; text-decoration: none; background: var(--surface); border: 3px solid #090c13; border-radius: 8px; box-shadow: 8px 8px 0 #090c13; transition: transform 160ms ease, box-shadow 160ms ease; }
.resource::before { position: absolute; inset: 0 auto 0 0; width: 12px; content: ""; background: var(--accent); }
.resource:hover, .resource:focus-visible { transform: translate(-3px, -3px); box-shadow: 11px 11px 0 #090c13; }
.resource span:first-child { display: block; color: var(--muted); font-size: .95rem; }
.resource strong { display: block; max-width: 80%; margin-top: 8px; font-size: 2rem; line-height: 1.05; }
.resource .arrow { position: absolute; right: 24px; bottom: 18px; color: var(--accent); font-size: 3.2rem; line-height: 1; }
.cyan { --accent: var(--cyan); }
.document { max-width: 760px; }
.back { display: inline-block; margin-bottom: 32px; color: var(--cyan); font-weight: 700; text-decoration: none; }
.document h1 { font-size: clamp(2.5rem, 7vw, 4.6rem); }
.document h2 { margin: 40px 0 10px; color: var(--yellow); font-size: 1.45rem; }
.document p, .document li { color: #d4d8e4; font-size: 1.08rem; line-height: 1.65; }
.document ul { padding-left: 24px; }
.contact { display: inline-block; padding: 12px 16px; color: var(--ink); font-weight: 800; text-decoration: none; background: var(--lime); border: 3px solid #090c13; border-radius: 6px; box-shadow: 4px 4px 0 #090c13; }
footer { margin-top: 60px; color: #7f879b; font-size: .9rem; }
@media (max-width: 640px) {
  body { background: linear-gradient(90deg, var(--coral) 0 10px, transparent 10px calc(100% - 10px), var(--yellow) calc(100% - 10px)), var(--ink); }
  main { width: min(100% - 44px, 920px); padding-top: 44px; }
  .link-grid { grid-template-columns: 1fr; }
  .resource { min-height: 150px; }
}
@media (prefers-reduced-motion: reduce) { .resource { transition: none; } }