:root {
  --btj-lapis: #10243f;
  --btj-persimmon: #c4512c;
  --btj-wash: #e6eef4;
  --btj-line: #c9d3dc;
  --btj-ink: #10243f;
  --btj-muted: #3c4d63;
  --btj-measure: 68rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--btj-wash);
  color: var(--btj-ink);
  font-family: "Lexend", "Segoe UI", sans-serif;
  font-size: 1.05rem;
  line-height: 1.65;
}

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

a {
  color: var(--btj-persimmon);
}

a:hover {
  color: var(--btj-lapis);
}

h1,
h2,
.btj-mark {
  font-family: "Kaisei Tokumin", "Palatino Linotype", Palatino, serif;
  font-weight: 500;
  letter-spacing: 0;
}

.btj-skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--btj-persimmon);
  color: var(--btj-wash);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  z-index: 2;
}

.btj-skip:focus {
  top: 0.6rem;
}

.btj-frame {
  width: min(var(--btj-measure), calc(100% - 8vw));
  margin-inline: auto;
}

.btj-bar {
  padding: 1.25rem 0 0.5rem;
}

.btj-bar-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.btj-mark {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--btj-ink);
}

.btj-mark img {
  width: 196px;
  height: auto;
}

nav.btj-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem 1.35rem;
}

nav.btj-links a {
  color: var(--btj-ink);
  text-decoration: none;
  padding-bottom: 0.2rem;
  border-bottom: 3px solid transparent;
}

nav.btj-links a[aria-current="page"] {
  border-bottom-color: var(--btj-persimmon);
}

.btj-main {
  padding: 1.5rem 0 4rem;
}

.btj-open {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(16rem, 0.75fr);
  gap: 2.75rem;
  align-items: start;
  margin-bottom: 2.5rem;
}

.btj-h1 {
  position: relative;
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  font-size: clamp(2.15rem, 4.6vw, 3.5rem);
  line-height: 1.15;
}

.btj-stroke {
  position: absolute;
  left: 0;
  top: 0;
  width: 8px;
  height: 0;
  background: var(--btj-persimmon);
}

.btj-stroke.btj-drawn {
  height: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  .btj-stroke.btj-drawn {
    transition: height 0.7s linear;
  }
}

.btj-lead {
  margin: 0 0 1.25rem;
  max-width: 40rem;
}

.btj-button {
  display: inline-block;
  background: var(--btj-persimmon);
  color: var(--btj-wash);
  text-decoration: none;
  border: 0;
  border-radius: 20px;
  padding: 0.72rem 1.3rem;
  font: 600 1.125rem/1.2 "Lexend", "Segoe UI", sans-serif;
  cursor: pointer;
}

.btj-button:hover,
.btj-button:focus-visible {
  color: var(--btj-wash);
  background: #a34122;
}

.btj-office {
  margin: 0;
  padding-top: 0.35rem;
}

.btj-office h2,
.btj-sheet h2 {
  margin: 0 0 0.8rem;
  font-size: 1.45rem;
  line-height: 1.3;
}

.btj-office dt {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--btj-muted);
}

.btj-office dd {
  margin: 0.15rem 0 0.85rem;
}

.btj-sheet {
  margin: 0 0 2.4rem;
}

.btj-sheet > h2 a {
  color: var(--btj-ink);
  text-decoration: none;
}

.btj-sheet > h2 a:hover {
  color: var(--btj-persimmon);
}

.btj-row {
  display: grid;
  grid-template-columns: 11.5rem minmax(0, 1fr);
  gap: 1.25rem;
  align-items: baseline;
  padding: 0.95rem 0;
  border-top: 1px solid var(--btj-line);
  color: inherit;
  text-decoration: none;
}

.btj-rows .btj-row:last-child {
  border-bottom: 1px solid var(--btj-line);
}

.btj-row-label {
  font-family: "Kaisei Tokumin", "Palatino Linotype", Palatino, serif;
  font-size: 1.2rem;
}

.btj-row:hover .btj-row-label {
  color: var(--btj-persimmon);
}

.btj-steps {
  margin: 0 0 1.2rem;
  padding-left: 1.2rem;
}

.btj-steps li + li {
  margin-top: 0.45rem;
}

.btj-file,
.btj-fields {
  margin: 0 0 1.2rem;
}

.btj-file div,
.btj-fields div {
  display: grid;
  grid-template-columns: 12rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-top: 1px solid var(--btj-line);
}

.btj-file dt,
.btj-fields dt {
  margin: 0;
  color: var(--btj-muted);
}

.btj-file dd,
.btj-fields dd {
  margin: 0;
}

.btj-points,
.btj-index {
  margin: 0 0 1.2rem;
  padding-left: 1.15rem;
}

.btj-points li + li,
.btj-index li + li,
.btj-asks li + li {
  margin-top: 0.55rem;
}

.btj-asks {
  margin: 0 0 1.2rem;
  padding-left: 1.2rem;
}

.btj-asks p {
  margin: 0.15rem 0;
}

.btj-block h2 {
  margin-top: 1.4rem;
}

.btj-form {
  display: grid;
  gap: 0.85rem;
  max-width: 36rem;
  margin-top: 1rem;
}

.btj-form label {
  display: grid;
  gap: 0.3rem;
}

.btj-form input,
.btj-form select,
.btj-form textarea {
  width: 100%;
  border: 1px solid var(--btj-line);
  border-radius: 0;
  background: #f7fafc;
  color: var(--btj-ink);
  font: inherit;
  padding: 0.55rem 0.65rem;
}

.btj-form button {
  justify-self: start;
}

:focus-visible {
  outline: 2px solid var(--btj-persimmon);
  outline-offset: 3px;
}

.btj-foot {
  background: var(--btj-lapis);
  color: var(--btj-wash);
  padding: 2.4rem 0 2.8rem;
}

.btj-foot a {
  color: var(--btj-wash);
}

.btj-foot-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2rem 3rem;
}

.btj-foot-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
}

.btj-foot-links a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.btj-foot-links a:hover {
  border-bottom-color: var(--btj-persimmon);
}

.btj-foot h2 {
  margin: 0 0 0.6rem;
  font-size: 1.25rem;
  color: var(--btj-wash);
}

.btj-foot p {
  margin: 0.2rem 0;
}

.btj-foot-line {
  margin-top: 1rem;
  max-width: 40rem;
  color: #d5dee8;
}

@media (max-width: 800px) {
  .btj-bar-row,
  .btj-open,
  .btj-row,
  .btj-file div,
  .btj-fields div,
  .btj-foot-grid {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }

  nav.btj-links {
    justify-content: flex-start;
  }

  .btj-open {
    gap: 1.5rem;
  }

  .btj-row {
    gap: 0.25rem;
    width: 100%;
  }

  .btj-file div,
  .btj-fields div,
  .btj-foot-grid {
    gap: 0.2rem;
    width: 100%;
  }

  .btj-mark img {
    width: min(196px, 70vw);
  }
}