* {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
}

body {
  margin: 0;
  min-width: 320px;
}

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

.mast,
.page-shell,
.site-foot {
  width: min(100% - 28px, 1080px);
  margin-inline: auto;
}

.mast {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  border-bottom: 1px solid var(--line);
}

.mast__home,
.mast__stamp {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.page-shell {
  padding-block: 34px 58px;
}

.hero {
  display: grid;
  gap: 24px;
  align-items: end;
  min-height: min(680px, calc(100svh - 90px));
  padding: clamp(36px, 8vw, 94px) 0 32px;
}

.hero--article {
  min-height: 0;
  padding-top: 26px;
}

.hero__copy,
.prose,
.worksheet,
.notice {
  width: min(100%, 720px);
}

.hero__deck {
  max-width: 640px;
}

.page-grid {
  display: grid;
  grid-template-columns: minmax(0, 720px) minmax(220px, 1fr);
  gap: clamp(30px, 6vw, 84px);
  align-items: start;
}

.prose > * + * {
  margin-top: 20px;
}

.prose section {
  padding-block: 28px;
  border-top: 1px solid var(--line);
}

.prose section > * + * {
  margin-top: 16px;
}

.prose ul,
.prose ol {
  padding-left: 1.25rem;
}

.prose li + li {
  margin-top: 12px;
}

.contact-entry {
  margin-block: 28px;
}

.contact-entry__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  padding: 6px;
}

.contact-entry__cell {
  min-width: 0;
  aspect-ratio: 10 / 7;
  overflow: hidden;
}

.contact-entry__cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.card-link,
.source-link {
  display: flex;
  min-height: 110px;
  padding: 18px;
  flex-direction: column;
  justify-content: space-between;
}

.source-link {
  min-height: 88px;
}

.step-list {
  list-style: none;
  padding: 0;
  counter-reset: steps;
}

.step-list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  counter-increment: steps;
}

.step-list li::before {
  content: counter(steps, decimal-leading-zero);
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
}

.fact-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.fact-strip__item,
.notice,
.worksheet,
.question,
.answer {
  padding: 20px;
}

.question + .answer {
  margin-top: 6px;
}

.worksheet {
  margin-top: 26px;
}

.worksheet__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-block: 22px;
}

.field {
  display: grid;
  gap: 8px;
}

.field input {
  width: 100%;
  min-height: 48px;
  padding: 10px 14px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 10px 16px;
}

.worksheet__result {
  min-height: 54px;
  margin-top: 18px;
}

.desk-index {
  position: sticky;
  top: 14px;
  padding: 16px;
}

.desk-index__links {
  display: grid;
  gap: 2px;
  margin-top: 12px;
}

.desk-index__links a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding-inline: 10px;
}

.next-note {
  display: flex;
  align-items: center;
  min-height: 68px;
  padding: 14px 18px;
  margin-top: 34px;
}

.site-foot {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
  padding-block: 24px 42px;
  border-top: 1px solid var(--line);
}

.site-foot a {
  display: inline-flex;
  align-items: center;
  min-width: 44px;
  min-height: 44px;
}

@media (max-width: 800px) {
  .page-grid {
    grid-template-columns: 1fr;
  }

  .desk-index {
    position: static;
    order: 2;
  }

  .fact-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .mast__stamp {
    display: none;
  }

  .hero {
    min-height: 580px;
  }

  .hero--article {
    min-height: 0;
  }

  .card-grid,
  .worksheet__grid {
    grid-template-columns: 1fr;
  }

  .contact-entry__grid {
    gap: 4px;
    padding: 4px;
  }

  .site-foot {
    grid-template-columns: 1fr;
  }
}

@media print {
  .mast,
  .desk-index,
  .site-foot,
  .next-note,
  .contact-entry,
  .button-row {
    display: none;
  }

  .page-shell,
  .prose,
  .worksheet {
    width: 100%;
  }
}