:root {
  --ink: #f4f0e7;
  --muted: #b9b5aa;
  --canvas: #121311;
  --panel: #1b1d19;
  --line: rgba(244, 240, 231, 0.16);
  --lime: #c9f36b;
  --lime-ink: #17200a;
  --amber: #f2bd65;
  --max: 760px;
}

* { box-sizing: border-box; }

html { background: var(--canvas); color: var(--ink); font-family: Georgia, "Times New Roman", serif; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 8% 0%, rgba(201, 243, 107, 0.14), transparent 31rem),
    radial-gradient(circle at 94% 12%, rgba(242, 189, 101, 0.10), transparent 25rem),
    var(--canvas);
}

a { color: var(--lime); text-underline-offset: 0.18em; }

a:hover { color: #e1ff9d; }

.shell { width: min(calc(100% - 2rem), var(--max)); margin: 0 auto; }

header { padding: 1.35rem 0 0; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.82rem 1rem;
  background: rgba(27, 29, 25, 0.86);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(14px);
}

.brand { color: var(--ink); font-size: 1.12rem; font-weight: 700; letter-spacing: 0.035em; text-decoration: none; }

.nav-links { display: flex; gap: 0.9rem; font-family: Arial, sans-serif; font-size: 0.84rem; }

main { padding: 5.5rem 0 3.5rem; }

.eyebrow { color: var(--lime); font-family: Arial, sans-serif; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }

h1, h2 { line-height: 1.03; letter-spacing: -0.035em; }

h1 { max-width: 12ch; margin: 0.75rem 0 1.35rem; font-size: clamp(2.6rem, 9vw, 5.4rem); }

h2 { margin: 2.4rem 0 0.7rem; font-size: clamp(1.55rem, 4vw, 2.15rem); }

p, li { color: var(--muted); font-family: Arial, sans-serif; font-size: 1rem; line-height: 1.7; }

.lede { max-width: 39rem; color: var(--ink); font-size: 1.14rem; }

.card { margin: 2rem 0; padding: 1.4rem; background: rgba(27, 29, 25, 0.9); border: 1px solid var(--line); border-radius: 1.25rem; }

.card h2 { margin-top: 0; }

.steps { margin: 1rem 0 0; padding-left: 1.3rem; }

.button {
  display: inline-block;
  margin-top: 0.4rem;
  padding: 0.9rem 1.15rem;
  color: var(--lime-ink);
  background: var(--lime);
  border-radius: 0.7rem;
  font-family: Arial, sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
}

.button:hover { color: var(--lime-ink); background: #ddff9b; }

.notice { border-left: 3px solid var(--amber); padding: 0.1rem 0 0.1rem 1rem; }

footer { padding: 1.25rem 0 2.5rem; border-top: 1px solid var(--line); }

footer p { font-size: 0.84rem; }

@media (max-width: 480px) {
  .nav { align-items: flex-start; border-radius: 1rem; }
  .nav-links { flex-direction: column; align-items: flex-end; gap: 0.35rem; }
  main { padding-top: 4.25rem; }
}