:root {
  color-scheme: light;
  --ink: #0f151a;
  --muted: #4e5961;
  --line: #cfd5d9;
  --line-dark: #7d878e;
  --blue: #0c5788;
  --paper: #ffffff;
  --wash: #f4f6f7;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}
a { color: var(--blue); }
img { display: block; max-width: 100%; height: auto; }

.site-header,
.site-footer,
main {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.brand { color: var(--ink); font-weight: 700; text-decoration: none; }
.brand span { color: var(--blue); font-weight: 600; }
.library-link { font-size: .92rem; }

section { padding: 82px 0; border-bottom: 1px solid var(--line); }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, .82fr);
  gap: clamp(38px, 7vw, 92px);
  align-items: center;
}
.kicker,
.section-number {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
}
h1,
h2 {
  margin: 0;
  max-width: 920px;
  line-height: 1.08;
  letter-spacing: -.025em;
}
h1 { font-size: clamp(2.7rem, 6vw, 5.2rem); font-weight: 500; }
h2 { font-size: clamp(2rem, 4.2vw, 3.5rem); font-weight: 500; }
.lead { max-width: 680px; margin: 30px 0 18px; color: var(--muted); font-size: 1.18rem; }
.byline { margin: 0 0 30px; color: var(--ink); font-weight: 700; }
.primary-link,
button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}
.release-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 42px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
}
.release-facts div { padding-right: 14px; }
.release-facts dt { font-size: 1.35rem; font-weight: 700; }
.release-facts dd { margin: 2px 0 0; color: var(--muted); font-size: .8rem; }
figure { margin: 0; }
.cover-figure img,
.wide-proof img,
.proof-pair img { border: 1px solid var(--line); background: var(--wash); }
figcaption { margin-top: 12px; color: var(--muted); font-size: .84rem; }

.problem-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 44px;
  max-width: 980px;
  margin-top: 34px;
  color: var(--muted);
  font-size: 1.06rem;
}
.review-sequence {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 46px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-dark);
  list-style: none;
  counter-reset: review;
}
.review-sequence li {
  position: relative;
  min-height: 150px;
  padding: 26px 28px 28px 58px;
  border-bottom: 1px solid var(--line);
  counter-increment: review;
}
.review-sequence li:nth-child(odd) { border-right: 1px solid var(--line); }
.review-sequence li::before {
  content: "0" counter(review);
  position: absolute;
  top: 27px;
  left: 0;
  color: var(--blue);
  font-weight: 700;
}
.review-sequence strong { display: block; margin-bottom: 6px; }

.wide-proof { margin-top: 42px; }
.proof-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-top: 48px; }
table { width: 100%; margin-top: 42px; border-collapse: collapse; }
th, td { padding: 18px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { width: 28%; color: var(--ink); }
td { color: var(--muted); }
.boundary { max-width: 900px; margin: 30px 0 0; padding-left: 18px; border-left: 3px solid var(--ink); color: var(--muted); }

.purchase { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(38px, 8vw, 100px); align-items: start; }
.purchase-summary p { color: var(--muted); }
.licence-note { padding-top: 18px; border-top: 1px solid var(--line); }
.checkout-form { display: grid; gap: 18px; padding: 34px; border: 1px solid var(--line-dark); }
.checkout-form label { display: grid; gap: 7px; font-weight: 700; }
.field-row,
.business-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
input,
select {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid #9aa4aa;
  background: #fff;
  color: var(--ink);
  font: inherit;
}
.check-line { grid-template-columns: 20px 1fr !important; align-items: start; font-weight: 400 !important; }
.check-line input { min-height: 0; margin-top: 4px; }
.check-line--optional { color: var(--muted); }
.rights-note { margin: 0; padding: 14px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--ink); font-size: .9rem; }
.checkout-status { margin: 0; color: var(--muted); font-size: .9rem; }
.checkout-status.is-error { color: #8b1e1e; }
.honeypot { position: absolute; left: -10000px; }
.site-footer { padding: 32px 0 56px; color: var(--muted); font-size: .88rem; }
.site-footer p { margin: 5px 0; }

@media (max-width: 820px) {
  .hero,
  .purchase { grid-template-columns: 1fr; }
  .cover-figure { max-width: 620px; }
  .problem-copy,
  .proof-pair { grid-template-columns: 1fr; }
  .release-facts { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 560px) {
  .site-header,
  .site-footer,
  main { width: min(100% - 24px, 1180px); }
  section { padding: 56px 0; }
  .review-sequence,
  .field-row,
  .business-fields { grid-template-columns: 1fr; }
  .review-sequence li:nth-child(odd) { border-right: 0; }
  .checkout-form { padding: 24px 18px; }
  th, td { display: block; width: 100%; }
  th { padding-bottom: 4px; }
  td { padding-top: 4px; }
}