:root {
  color-scheme: dark;
  --ink: #07182f;
  --ink-soft: #102b4e;
  --panel: rgba(7, 24, 47, 0.95);
  --panel-soft: rgba(16, 43, 78, 0.9);
  --grid: rgba(130, 199, 232, 0.12);
  --cyan: #82c7e8;
  --cyan-bright: #b9e8ff;
  --salmon: #e86f6f;
  --lime: #9ee843;
  --gold: #ffc45b;
  --text: #f5fbff;
  --muted: #b7cadd;
  --line: rgba(130, 199, 232, 0.32);
  --max: 780px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--ink);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    radial-gradient(circle at 12% 0%, rgba(130, 199, 232, 0.2), transparent 34rem),
    radial-gradient(circle at 88% 15%, rgba(232, 111, 111, 0.13), transparent 28rem),
    var(--ink);
  background-size: 42px 42px, 42px 42px, auto, auto, auto;
}

a {
  color: var(--cyan-bright);
  text-underline-offset: 0.2em;
}

a:hover {
  color: #fff;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
  border-radius: 4px;
}

.site-header,
.site-footer,
main {
  width: min(calc(100% - 32px), var(--max));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 86px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-weight: 900;
  letter-spacing: 0.055em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-mark {
  position: relative;
  width: 32px;
  height: 32px;
  border: 4px solid var(--cyan);
  border-radius: 8px;
  background: var(--lime);
  box-shadow: 6px 6px 0 var(--salmon);
  transform: rotate(-4deg);
}

.brand-mark::after {
  position: absolute;
  inset: 7px;
  border-radius: 3px;
  background: var(--ink);
  content: "";
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px 18px;
  font-size: 0.88rem;
  font-weight: 750;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: var(--cyan-bright);
}

main {
  padding-block: 66px 76px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--lime);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.15;
  text-wrap: balance;
}

h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(2.35rem, 7vw, 4.5rem);
  letter-spacing: -0.055em;
}

h2 {
  margin: 48px 0 13px;
  padding-top: 8px;
  color: var(--cyan-bright);
  font-size: clamp(1.35rem, 3vw, 1.72rem);
}

h3 {
  margin: 26px 0 8px;
  font-size: 1.05rem;
}

p,
ul,
ol {
  margin-block: 0 18px;
}

ul,
ol {
  padding-left: 1.35rem;
}

li + li {
  margin-top: 8px;
}

.lede {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.2vw, 1.22rem);
}

.meta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  margin-top: 24px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: rgba(16, 43, 78, 0.7);
  font-size: 0.82rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 42px;
}

.card {
  min-height: 185px;
  padding: 23px;
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--text);
  background: var(--panel);
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.2);
  text-decoration: none;
  transition: transform 140ms ease, border-color 140ms ease;
}

.card:hover {
  border-color: var(--cyan);
  color: var(--text);
  transform: translateY(-3px);
}

.card:nth-child(2) {
  border-color: rgba(232, 111, 111, 0.46);
}

.card-kicker {
  display: block;
  margin-bottom: 15px;
  color: var(--lime);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.18rem;
}

.card span:last-child {
  color: var(--muted);
  font-size: 0.9rem;
}

.callout {
  margin: 30px 0;
  padding: 20px 22px;
  border: 1px solid rgba(158, 232, 67, 0.48);
  border-left: 5px solid var(--lime);
  border-radius: 10px;
  background: rgba(158, 232, 67, 0.07);
}

.callout strong {
  color: #d9ffac;
}

.warning {
  border-color: rgba(255, 196, 91, 0.48);
  border-left-color: var(--gold);
  background: rgba(255, 196, 91, 0.07);
}

.warning strong {
  color: #ffe0a6;
}

.section {
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(130, 199, 232, 0.14);
}

.step-list {
  counter-reset: steps;
  list-style: none;
  padding: 0;
}

.step-list li {
  position: relative;
  min-height: 54px;
  padding: 3px 0 20px 54px;
  counter-increment: steps;
}

.step-list li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 2px solid var(--cyan);
  border-radius: 9px;
  color: var(--ink);
  background: var(--cyan);
  font-weight: 900;
  content: counter(steps);
}

.button {
  display: inline-block;
  margin: 6px 0 18px;
  padding: 12px 17px;
  border: 2px solid var(--cyan);
  border-radius: 9px;
  color: var(--ink);
  background: var(--cyan);
  font-weight: 900;
  text-decoration: none;
  box-shadow: 5px 5px 0 var(--salmon);
}

.button:hover {
  color: var(--ink);
  background: var(--cyan-bright);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-block: 25px 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

.site-footer p {
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px 16px;
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 20px;
  }

  .site-nav {
    justify-content: flex-start;
  }

  main {
    padding-block: 48px 64px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .card {
    min-height: auto;
  }

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

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .card {
    transition: none;
  }
}