:root {
  color-scheme: dark;
  font-family: Inter, ui-rounded, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #020713;
  color: #edf7ff;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 12% -8%, rgba(45, 145, 255, .28), transparent 34rem),
    radial-gradient(circle at 92% 14%, rgba(194, 76, 255, .16), transparent 30rem),
    linear-gradient(180deg, #051123, #020713 44%, #01040b);
}

a { color: #83d9ff; text-underline-offset: .2em; }
a:hover { color: #c2efff; }

.page {
  width: min(100% - 32px, 780px);
  margin: 0 auto;
  padding: 28px 0 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 34px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: .14em;
  text-decoration: none;
}

.mark {
  display: block;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(131, 217, 255, .5);
  border-radius: 9px;
  box-shadow: 0 0 22px rgba(45, 145, 255, .25);
  object-fit: cover;
}

.nav { display: flex; gap: 15px; font-size: 13px; font-weight: 750; }

.hero, .card {
  border: 1px solid rgba(91, 163, 219, .24);
  background: rgba(4, 13, 28, .82);
  box-shadow: 0 18px 55px rgba(0, 0, 0, .28);
  backdrop-filter: blur(18px);
}

.hero { padding: clamp(24px, 6vw, 48px); border-radius: 24px; }

.eyebrow {
  margin: 0 0 10px;
  color: #83d9ff;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
}

h1 { margin: 0; font-size: clamp(32px, 8vw, 56px); line-height: 1; letter-spacing: -.04em; }
h2 { margin: 0 0 10px; color: #dff4ff; font-size: 17px; }
p, li { color: #aebfd2; font-size: 15px; line-height: 1.68; }
p { margin: 0; }
ul { margin: 10px 0 0; padding-left: 20px; }

.lede { max-width: 58ch; margin-top: 16px; font-size: 17px; }
.updated { margin-top: 18px; color: #7289a5; font-size: 12px; font-weight: 700; }

.notice {
  margin-top: 18px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 212, 76, .28);
  border-radius: 12px;
  background: rgba(255, 185, 31, .07);
  color: #ffd97a;
  font-size: 13px;
  line-height: 1.5;
}

.stack { display: grid; gap: 14px; margin-top: 18px; }
.card { padding: 22px; border-radius: 17px; }
.card strong { color: #eef9ff; }

.contact {
  display: inline-flex;
  margin-top: 14px;
  padding: 11px 14px;
  border: 1px solid rgba(83, 207, 255, .42);
  border-radius: 11px;
  background: rgba(45, 145, 255, .13);
  font-weight: 850;
  text-decoration: none;
}

footer { padding: 26px 4px 0; color: #64758b; font-size: 12px; text-align: center; }

@media (max-width: 560px) {
  .topbar { align-items: flex-start; }
  .nav { flex-direction: column; align-items: flex-end; gap: 6px; }
}