:root {
  color-scheme: dark;
  --ink: #f4f7fb;
  --muted: #aab7c7;
  --line: rgba(255,255,255,.12);
  --panel: rgba(255,255,255,.045);
  --aqua: #72e0c4;
  --blue: #6c8dff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 16%, rgba(108,141,255,.17), transparent 30rem),
    radial-gradient(circle at 8% 88%, rgba(114,224,196,.1), transparent 28rem),
    #101722;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: inherit; }
.shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.nav {
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 680; letter-spacing: -.02em; text-decoration: none; }
.brand img { filter: drop-shadow(0 8px 22px rgba(108,141,255,.25)); }
.status { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: .83rem; }
.status i { width: 7px; height: 7px; border-radius: 50%; background: var(--aqua); box-shadow: 0 0 14px var(--aqua); }
.hero { min-height: 620px; padding: 110px 0 80px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.eyebrow { margin: 0 0 18px; color: var(--aqua); font-size: .75rem; font-weight: 750; letter-spacing: .17em; text-transform: uppercase; }
h1 { max-width: 850px; margin: 0; font-size: clamp(3.4rem, 9vw, 7.8rem); line-height: .94; letter-spacing: -.075em; }
h1 span { color: transparent; -webkit-text-stroke: 1px rgba(244,247,251,.48); }
.lede { max-width: 650px; margin: 34px 0; color: var(--muted); font-size: clamp(1.04rem, 2vw, 1.25rem); }
.button { display: inline-flex; gap: 18px; align-items: center; padding: 13px 19px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.04); text-decoration: none; transition: transform .2s, border-color .2s, background .2s; }
.button:hover { transform: translateY(-2px); border-color: rgba(114,224,196,.5); background: rgba(114,224,196,.08); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.grid article { padding: 42px 34px 46px 0; }
.grid article + article { padding-left: 34px; border-left: 1px solid var(--line); }
.grid .number { color: var(--aqua); font-size: .72rem; letter-spacing: .1em; }
.grid h2 { margin: 35px 0 10px; font-size: 1.35rem; letter-spacing: -.025em; }
.grid article > p:last-child { max-width: 290px; margin: 0; color: var(--muted); }
footer { display: flex; justify-content: space-between; padding: 32px 0 55px; color: var(--muted); font-size: .79rem; }
.error-shell { width: min(900px, calc(100% - 40px)); min-height: 100vh; margin: auto; padding: 29px 0; display: flex; flex-direction: column; }
.error-card { margin: auto 0; padding: 80px 0; }
.error-card h1 { font-size: clamp(3rem, 8vw, 6.5rem); }

@media (max-width: 720px) {
  .shell { width: min(100% - 28px, 1120px); }
  .nav { height: 76px; }
  .hero { min-height: 560px; padding: 78px 0 65px; }
  .grid { grid-template-columns: 1fr; }
  .grid article { padding: 30px 0; }
  .grid article + article { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .grid h2 { margin-top: 14px; }
  footer { flex-direction: column; gap: 4px; }
  .status { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}