:root {
  color-scheme: dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #e1e2e7;
  background: #0c0e12;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 50% 8%, rgba(0, 219, 231, .09), transparent 30%),
    linear-gradient(rgba(0, 219, 231, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 219, 231, .035) 1px, transparent 1px),
    #0c0e12;
  background-size: auto, 40px 40px, 40px 40px, auto;
  font-size: 17px;
  line-height: 1.7;
}
body::after {
  content: "";
  position: fixed;
  z-index: 100;
  inset: 0;
  pointer-events: none;
  opacity: .13;
  background: repeating-linear-gradient(transparent 0 2px, rgba(0, 0, 0, .3) 2px 4px);
}
.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  width: 100%;
  min-height: 70px;
  margin: 0;
  padding: 8px max(28px, calc((100vw - 1180px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  border-bottom: 1px solid rgba(0, 219, 231, .2);
  background: rgba(12, 14, 18, .88);
  backdrop-filter: blur(14px);
}
.brand { display: block; width: 190px; height: 48px; overflow: hidden; }
.brand img { width: 100%; height: 100%; object-fit: cover; filter: drop-shadow(0 0 14px rgba(0, 219, 231, .32)); }
nav { display: flex; flex-wrap: wrap; gap: clamp(14px, 3vw, 32px); }
a { color: #74dbe6; text-underline-offset: 4px; }
.site-header a {
  color: #80aeb4;
  font: 600 10px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .14em;
  text-decoration: none;
  text-transform: uppercase;
}
.site-header a:hover { color: #74f5ff; text-shadow: 0 0 9px rgba(0, 219, 231, .7); }
main {
  width: min(900px, calc(100% - 40px));
  margin: 58px auto 80px;
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid rgba(0, 219, 231, .24);
  border-radius: 4px;
  background: rgba(12, 14, 18, .78);
  box-shadow: 0 0 34px rgba(0, 219, 231, .08);
}
h1 {
  margin: 0 0 14px;
  color: #fff;
  font-size: clamp(44px, 8vw, 76px);
  line-height: .96;
  letter-spacing: -.05em;
  text-transform: uppercase;
  text-shadow: 2px 0 #00f2ff, -2px 0 #ff8a00;
}
h2 {
  margin: 48px 0 10px;
  color: #eaffff;
  font: 700 18px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .07em;
  text-transform: uppercase;
}
h2::before { content: "// "; color: #00dbe7; }
p, li { color: #a7b8bc; }
.lede { max-width: 700px; margin: 0 0 42px; color: #c9d8dc; font-size: 20px; }
.notice {
  padding: 18px 20px;
  border: 1px solid rgba(255, 138, 0, .55);
  border-radius: 3px;
  color: #ffd6bf;
  background: rgba(255, 138, 0, .08);
  box-shadow: inset 3px 0 #ff8a00;
}
address { color: #c7dde4; font-style: normal; }
footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0 40px;
  border-top: 1px solid rgba(0, 219, 231, .15);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #5f7d83;
  font: 500 10px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
}
@media (max-width: 600px) {
  .site-header { align-items: flex-start; padding-inline: 16px; }
  .brand { width: 145px; }
  .site-header nav { justify-content: flex-end; gap: 8px 14px; }
  main { margin-top: 24px; padding: 24px 20px 38px; }
  footer { flex-direction: column; }
}