:root {
  --bg: #e9eef2;
  --bg2: #dde5eb;
  --ink: #14202b;
  --muted: #4a5a68;
  --line: rgba(20, 32, 43, 0.12);
  --accent: #0c6b5c;
  --accent-soft: rgba(12, 107, 92, 0.12);
  --danger: #9b3b3b;
  --display: "Literata", Georgia, serif;
  --sans: "Outfit", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100dvh;
  font: 400 1.125rem/1.55 var(--sans);
  color: var(--ink);
  background: var(--bg);
}

.wash {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(90% 70% at 0% 0%, #c5ddd6 0%, transparent 55%),
    radial-gradient(70% 50% at 100% 10%, #c8d4e4 0%, transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
}

.hero,
main,
.foot {
  position: relative;
  z-index: 1;
  width: min(38rem, calc(100% - 2.25rem));
  margin-inline: auto;
}

.hero {
  padding: clamp(3.25rem, 14vh, 7rem) 0 2rem;
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero.in {
  opacity: 1;
  transform: none;
}

.brand {
  margin: 0 0 0.75rem;
  font: 700 clamp(3rem, 11vw, 4.5rem)/0.9 var(--display);
  letter-spacing: -0.035em;
  color: var(--accent);
}

.hero h1 {
  margin: 0 0 1rem;
  max-width: 14ch;
  font: 500 clamp(1.65rem, 4.5vw, 2.15rem)/1.2 var(--display);
  letter-spacing: -0.02em;
}

.lede {
  margin: 0 0 1.75rem;
  max-width: 34ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #f4fffb;
  font: 600 0.95rem/1 var(--sans);
  text-decoration: none;
  transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(12, 107, 92, 0.25);
}

.btn:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

.btn-quiet {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn-quiet:hover {
  box-shadow: none;
  border-color: var(--muted);
}

.sec {
  padding: 2rem 0 0.25rem;
  border-top: 1px solid var(--line);
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.05s,
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.05s;
}

.sec.in {
  opacity: 1;
  transform: none;
}

.sec h2 {
  margin: 0 0 1rem;
  font: 600 0.8rem/1.2 var(--sans);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.plain {
  margin: 0;
  padding: 0;
  list-style: none;
}

.plain li {
  margin: 0 0 1.15rem;
  color: var(--muted);
  max-width: 36ch;
}

.plain strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--ink);
  font-weight: 600;
  font-size: 1.05rem;
}

.plain--neg li {
  padding-left: 1rem;
  border-left: 2px solid var(--line);
}

.status {
  margin: 0 0 0.75rem;
  padding: 1rem 1.1rem;
  background: var(--accent-soft);
  border-radius: 4px;
  font-size: 1rem;
  color: var(--ink);
}

.status .on {
  color: var(--accent);
}

.status .off {
  color: var(--danger);
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 2.25rem 1fr;
  gap: 0.85rem;
  align-items: start;
  margin: 0 0 1.35rem;
}

.steps li > span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--accent);
  color: #f4fffb;
  font: 700 0.95rem/1 var(--sans);
}

.steps strong {
  display: block;
  margin: 0.15rem 0 0.25rem;
  color: var(--ink);
  font-size: 1.1rem;
}

.steps p {
  margin: 0;
  color: var(--muted);
  max-width: 34ch;
  font-size: 1rem;
}

.code,
code {
  font-family: ui-monospace, "IBM Plex Mono", monospace;
  font-size: 0.9em;
  color: var(--accent);
}

.foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  padding: 2.5rem 0 3rem;
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.foot a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.foot a:hover {
  text-decoration: underline;
}

@media (prefers-reduced-motion: reduce) {
  .hero,
  .sec {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .btn {
    transition: none;
  }
}