:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #060910;
  color: #eef7ff;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% -10%, rgba(35, 237, 185, .17), transparent 34rem),
    radial-gradient(circle at 90% 10%, rgba(51, 195, 255, .14), transparent 30rem),
    #060910;
  line-height: 1.65;
}

a {
  color: #58dcff;
  text-underline-offset: .2em;
}

a:hover,
a:focus-visible {
  color: #7ff6cf;
}

.shell {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: #f4fbff;
  font-size: .84rem;
  font-weight: 900;
  letter-spacing: .18em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(101, 242, 201, .55);
  border-radius: 50%;
  background: rgba(35, 237, 185, .1);
  color: #65f2c9;
  box-shadow: 0 0 24px rgba(35, 237, 185, .15);
}

.toplink {
  font-size: .88rem;
  font-weight: 700;
}

.hero,
.card {
  border: 1px solid rgba(107, 165, 194, .25);
  border-radius: 22px;
  background: rgba(11, 18, 29, .91);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .28);
}

.hero {
  padding: clamp(28px, 6vw, 58px);
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0 0 auto auto;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(88, 220, 255, .11);
  border-radius: 50%;
  transform: translate(32%, -42%);
  box-shadow: 0 0 0 34px rgba(88, 220, 255, .025), 0 0 0 68px rgba(88, 220, 255, .02);
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 12px;
  color: #65f2c9;
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .19em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  max-width: 740px;
  margin: 0;
  font-size: clamp(2rem, 7vw, 4rem);
  letter-spacing: -.035em;
}

.lead {
  max-width: 760px;
  margin: 20px 0 0;
  color: #b7c8d6;
  font-size: clamp(1rem, 2.2vw, 1.16rem);
}

.updated {
  margin: 20px 0 0;
  color: #7890a3;
  font-size: .88rem;
}

.content {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.card {
  padding: clamp(22px, 4vw, 34px);
}

.card h2 {
  margin: 0 0 14px;
  color: #f4fbff;
  font-size: clamp(1.25rem, 3vw, 1.65rem);
}

.card h3 {
  margin: 24px 0 8px;
  color: #dff8ff;
  font-size: 1.04rem;
}

.card p,
.card li {
  color: #aec0cf;
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

ul,
ol {
  padding-left: 1.25rem;
}

li + li {
  margin-top: .55rem;
}

.note {
  margin: 18px 0 0;
  padding: 16px 18px;
  border-left: 3px solid #58dcff;
  border-radius: 4px 12px 12px 4px;
  background: rgba(88, 220, 255, .07);
  color: #d5e9f4;
}

.good-note {
  border-left-color: #65f2c9;
  background: rgba(101, 242, 201, .07);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  margin-top: 10px;
  padding: 0 20px;
  border-radius: 12px;
  background: #65f2c9;
  color: #04100d;
  font-weight: 900;
  letter-spacing: .025em;
  text-decoration: none;
  box-shadow: 0 12px 34px rgba(35, 237, 185, .16);
}

.button:hover,
.button:focus-visible {
  background: #83f8d6;
  color: #04100d;
}

.steps {
  counter-reset: steps;
  display: grid;
  gap: 12px;
  padding: 0;
  list-style: none;
}

.steps li {
  position: relative;
  min-height: 44px;
  padding-left: 58px;
}

.steps li::before {
  counter-increment: steps;
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(101, 242, 201, .45);
  border-radius: 50%;
  color: #65f2c9;
  font-weight: 900;
}

footer {
  padding: 28px 6px 0;
  color: #71879a;
  font-size: .84rem;
  text-align: center;
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 20px, 980px);
    padding-top: 20px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .card {
    border-radius: 17px;
  }
}