:root {
  color-scheme: light dark;
  --bg: #F4F2ED;
  --card: #FFFFFF;
  --ink: #191B26;
  --muted: #5B5E6C;
  --sage: #2A9A7E;
  --deep: #0E5A48;
  --line: #E4E0D8;
  --soft: #E7F6F1;
  --shadow: 0 10px 30px rgba(25, 27, 38, 0.06);
  --max: 72rem;
  --radius: 1.25rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0D0F13;
    --card: #1A1D25;
    --ink: #F4F2ED;
    --muted: #C4C7D1;
    --sage: #3CB892;
    --deep: #97EBD2;
    --line: #2C313C;
    --soft: #14332C;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  font-size: 1.0625rem;
}
img { max-width: 100%; height: auto; }
a { color: var(--deep); }
a:hover { text-decoration-thickness: 2px; }
:focus-visible {
  outline: 3px solid var(--sage);
  outline-offset: 3px;
}
.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--deep);
  color: #fff;
  padding: 0.6rem 0.9rem;
  border-radius: 0.6rem;
  z-index: 5;
}
.skip:focus { top: 1rem; }

.wrap { width: min(100% - 2rem, var(--max)); margin-inline: auto; }
header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem 1rem;
  padding: 1rem 0;
}
.brand { display: flex; align-items: center; gap: 0.7rem; color: inherit; text-decoration: none; font-weight: 750; }
.brand img { width: 2.5rem; height: 2.5rem; border-radius: 0.7rem; }
nav { display: flex; gap: 0.9rem; flex-wrap: wrap; margin-left: auto; }
nav a { color: var(--ink); text-decoration: none; font-weight: 650; }
nav a[aria-current="page"] { color: var(--deep); text-decoration: underline; text-underline-offset: 0.25rem; }

.hero { display: grid; gap: 1.5rem; padding: 1.5rem 0 2rem; align-items: center; }
.hero h1 { font-size: clamp(2.2rem, 6vw, 4rem); line-height: 1.05; letter-spacing: -0.03em; margin: 0.4rem 0; }
.slogan { color: var(--deep); font-weight: 700; margin: 0; }
.lede { color: var(--muted); font-size: 1.15rem; max-width: 38rem; }
.hero-mark {
  justify-self: center;
  width: min(16rem, 70vw);
  border-radius: 2rem;
  box-shadow: var(--shadow);
}
.btn, .quiet {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.7rem 1.1rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 750;
}
.btn { background: var(--sage); color: #fff; }
.quiet { background: transparent; color: var(--deep); border: 1.5px solid var(--line); }
.actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.2rem; }

section { padding: 1.2rem 0 0.4rem; }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); letter-spacing: -0.02em; margin: 0 0 0.4rem; }
.intro { color: var(--muted); max-width: 42rem; }
.grid { display: grid; gap: 0.9rem; margin-top: 1rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.15rem;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 0.35rem; font-size: 1.15rem; }
.card p, .steps li, .faq p { color: var(--muted); }
.steps { margin: 1rem 0 0; padding: 0; list-style: none; display: grid; gap: 0.8rem; }
.steps li { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1rem 1rem 4.2rem; position: relative; }
.steps span {
  position: absolute; left: 1rem; top: 1rem;
  width: 2.2rem; height: 2.2rem; border-radius: 999px;
  background: var(--soft); color: var(--deep);
  display: grid; place-items: center; font-weight: 800;
}
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 1rem; padding: 0.8rem 1rem; margin-top: 0.7rem; }
.faq summary { cursor: pointer; font-weight: 750; }
.faq p { margin-bottom: 0.2rem; }
.cta { margin: 2rem 0; background: var(--deep); color: #F4F2ED; border-radius: 1.5rem; padding: 1.4rem; }
.cta p { color: #E7F6F1; }
.cta .btn { background: #F4F2ED; color: #0E5A48; }
footer.site { border-top: 1px solid var(--line); margin-top: 2rem; padding: 1.3rem 0 2rem; color: var(--muted); display: flex; flex-wrap: wrap; gap: 0.8rem 1.2rem; justify-content: space-between; }
footer.site a { color: var(--muted); }
.prose h2 { margin-top: 1.6rem; }
.prose ul { color: var(--muted); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92em; }
.code {
  font-size: clamp(2rem, 8vw, 3.2rem);
  letter-spacing: 0.18em;
  font-weight: 800;
  text-align: center;
  margin: 0.4rem 0;
}
.note { color: var(--muted); }

@media (min-width: 800px) {
  .hero { grid-template-columns: 1.2fr 0.8fr; padding-top: 2.5rem; }
  .hero-mark { justify-self: end; width: 18rem; }
  .grid.three { grid-template-columns: repeat(3, 1fr); }
  .grid.two { grid-template-columns: 1fr 1fr; }
}