* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--liva-fg);
  background: var(--liva-bg);
  font: 1rem/1.6 var(--liva-font-sans);
}

.wrap {
  width: min(100% - 2.5rem, 66rem);
  margin-inline: auto;
}

main { flex: 1; }

.site-header { border-bottom: 1px solid var(--liva-border); }
.site-footer { border-top: 1px solid var(--liva-border); }

.header-inner,
.footer-inner {
  min-height: 4.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  column-gap: 1rem;
}

.footer-inner {
  justify-content: flex-start;
  gap: 1.5rem;
  color: var(--liva-fg-muted);
}

a {
  color: var(--liva-fg);
  text-underline-offset: .2em;
}

.header-inner a,
.footer-inner a {
  display: inline-flex;
  align-items: center;
  min-height: var(--liva-min-touch);
}

h1, h2, h3, p { margin: 0; }

h1 {
  max-width: 16ch;
  font-size: clamp(2.5rem, 7.2vw, 5.6rem);
  font-weight: 750;
  letter-spacing: -.045em;
  line-height: 1.05;
  text-wrap: balance;
}

h2, h3 { line-height: 1.2; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); letter-spacing: -.035em; }
h3 { font-size: 1.2rem; letter-spacing: -.02em; }

p { color: var(--liva-fg-muted); }

.intro { padding-block: clamp(3rem, 9vw, 7rem) clamp(2.75rem, 7vw, 5rem); }
.intro p {
  max-width: 44ch;
  margin-top: 1.2rem;
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
}

.product-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(15rem, 19rem);
  align-items: center;
  gap: clamp(1.25rem, 5vw, 4rem);
}

.availability {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background: var(--liva-surface-muted);
  border: 1px solid var(--liva-border);
  border-radius: var(--liva-radius-card);
}

.availability h2 { font-size: 1.2rem; }
.availability p, .product p, .features p { margin-top: .6rem; }

.section {
  border-top: 1px solid var(--liva-border);
  padding-block: 1.8rem clamp(3rem, 7vw, 5rem);
}

.catalog,
.features {
  margin-top: 1.25rem;
  display: grid;
  gap: 1rem;
}

.catalog { grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); }

.product {
  padding: clamp(1.25rem, 4vw, 2rem);
  border-radius: var(--liva-radius-card);
  background: var(--liva-surface-selected);
}

.product p { max-width: 56ch; }

.button {
  display: inline-flex;
  align-items: center;
  min-height: var(--liva-min-touch);
  margin-top: 1.25rem;
  padding: .65rem 1rem;
  border-radius: var(--liva-radius-control);
  color: var(--liva-action-fg);
  background: var(--liva-action-bg);
  font-weight: 700;
  text-decoration: none;
  transition: background-color var(--liva-motion-fast);
}

.button:hover { background: var(--liva-action-hover); }

.features { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.features article {
  padding: 1.25rem;
  border: 1px solid var(--liva-border);
  border-radius: var(--liva-radius-card);
  background: var(--liva-surface);
}

@media (max-width: 42rem) {
  .product-intro, .features { grid-template-columns: 1fr; }
  .product-intro { padding-bottom: 2.75rem; }
  .product-intro .intro { padding-bottom: 0; }
}