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

html { scroll-behavior: smooth; }

body { margin: 0; }

img { max-width: 100%; height: auto; display: block; }

figure { margin: 0; }

p { margin: 0.75rem 0; }

a { color: inherit; }

:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

[hidden] { display: none !important; }

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

.skip {
  position: absolute;
  left: 0.75rem;
  top: -4rem;
  background: #fff;
  color: #111;
  padding: 0.45rem 0.7rem;
  z-index: 10;
}

.skip:focus { top: 0.75rem; }

.hp {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.buy {
  display: flex;
  flex-wrap: wrap;
  max-width: 28rem;
  margin-top: 1.25rem;
  padding-left: 1px;
}

.buy a {
  flex: 1 1 7.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 0.8rem;
  margin: 0 0 -1px -1px;
  border: 1px solid currentColor;
  text-decoration: none;
  text-align: center;
  background: transparent;
  color: inherit;
}

.ku {
  flex: 1 0 100%;
  margin: 0.75rem 0 0;
  font-size: 0.95rem;
}

.signup {
  display: grid;
  gap: 0.65rem;
  max-width: 26rem;
  margin-top: 1rem;
  position: relative;
}

.signup label { display: grid; gap: 0.35rem; }

.signup input[type="email"] {
  font: inherit;
  font-size: 1rem;
  min-height: 44px;
  width: 100%;
  padding: 0.6rem 0.75rem;
}

.signup button {
  min-height: 44px;
  font: inherit;
  cursor: pointer;
  padding: 0.6rem 1rem;
}

.joined {
  margin-top: 1rem;
  padding: 0.95rem 1rem;
  max-width: 38rem;
  font-weight: 600;
}

.social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.15rem;
  margin: 1rem 0;
  padding: 0;
  list-style: none;
}

.bonus ul { margin: 0.4rem 0 1rem; padding-left: 1.2rem; }

.bonus li { margin: 0.35rem 0; }

.about::after {
  content: "";
  display: block;
  clear: both;
}

.kicker,
.saying { margin: 0; }

.book,
#about,
#bonus { scroll-margin-top: 5rem; }

.book-copy p,
.about p,
.bonus p,
.bonus li { max-width: 65ch; }