*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --jxl-canvas: #f7f3ea;
  --jxl-cream: #fdfaf2;
  --jxl-panel: #ffffff;
  --jxl-ink: #2b2722;
  --jxl-muted: #6b6155;
  --jxl-accent: #a8552f;
  --jxl-accent-wash: rgba(168, 85, 47, 0.12);
  --jxl-rule: #e2d9c9;
  --jxl-serif: Georgia, "Times New Roman", serif;
  --jxl-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  --jxl-r1: 8px;
  --jxl-r2: 14px;
  --jxl-sh1: 0 2px 8px rgba(43, 39, 34, 0.06);
  --jxl-sh2: 0 10px 26px rgba(43, 39, 34, 0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--jxl-canvas);
  font-family: var(--jxl-sans);
  font-size: 16px;
  line-height: 1.72;
  color: var(--jxl-ink);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--jxl-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}
a:hover {
  color: #8a4324;
}

/* ---------- top bar ---------- */
.jxl-crest {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px 18px 18px;
  background: var(--jxl-cream);
  border-bottom: 2px solid var(--jxl-accent);
}
.jxl-crest__logo {
  font-family: var(--jxl-serif);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-indent: 0.14em;
  color: var(--jxl-ink);
  text-decoration: none;
}
.jxl-crest__logo:hover {
  color: var(--jxl-accent);
}

/* ---------- page head ---------- */
.jxl-sheet {
  max-width: 1080px;
  margin: 0 auto;
  padding: 46px 20px 10px;
}
.jxl-sheet__title {
  font-family: var(--jxl-serif);
  font-size: clamp(26px, 4.2vw, 42px);
  font-weight: 700;
  line-height: 1.24;
  color: var(--jxl-ink);
}
.jxl-sheet__intro {
  display: block;
  max-width: 660px;
  margin-top: 14px;
  font-size: 16px;
  color: var(--jxl-muted);
}
.jxl-sheet__stamp {
  display: inline-block;
  margin-top: 18px;
  padding: 6px 15px;
  border-radius: 999px;
  background: var(--jxl-accent-wash);
  border: 1px solid rgba(168, 85, 47, 0.38);
  font-size: 13px;
  font-weight: 600;
  color: var(--jxl-ink);
}

/* ---------- two columns ---------- */
.jxl-paper {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 20px 66px;
  display: grid;
  grid-template-columns: 252px minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}
.jxl-paper__aside {
  position: sticky;
  top: 22px;
  padding: 18px 18px 14px;
  background: var(--jxl-panel);
  border: 1px solid var(--jxl-rule);
  border-left: 3px solid var(--jxl-accent);
  border-radius: var(--jxl-r1);
  box-shadow: var(--jxl-sh1);
}
.jxl-paper__asidehead {
  margin-bottom: 10px;
  font-family: var(--jxl-serif);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--jxl-accent);
}
.jxl-paper__toc {
  list-style: none;
  counter-reset: jxlToc;
}
.jxl-paper__toc li {
  counter-increment: jxlToc;
  position: relative;
  padding-left: 26px;
  margin-bottom: 7px;
  font-size: 14px;
  line-height: 1.5;
}
.jxl-paper__toc li::before {
  content: counter(jxlToc);
  position: absolute;
  left: 0;
  top: 0.1em;
  width: 19px;
  text-align: right;
  font-weight: 700;
  font-size: 12px;
  color: var(--jxl-accent);
}
.jxl-paper__toc a {
  color: var(--jxl-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.jxl-paper__toc a:hover {
  color: var(--jxl-ink);
  border-bottom-color: rgba(168, 85, 47, 0.5);
}

.jxl-paper__main {
  min-width: 0;
}

/* ---------- numbered sections ---------- */
.jxl-chapter {
  scroll-margin-top: 20px;
  padding: 0 0 28px;
  border-bottom: 1px solid var(--jxl-rule);
  margin-bottom: 26px;
}
.jxl-chapter:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 4px;
}
.jxl-chapter__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 12px;
  font-family: var(--jxl-serif);
  font-size: clamp(19px, 2.4vw, 25px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--jxl-ink);
}
.jxl-chapter__num {
  flex: 0 0 auto;
  font-size: 0.72em;
  font-weight: 700;
  color: var(--jxl-accent);
}
.jxl-chapter__text p {
  margin-bottom: 12px;
  color: var(--jxl-muted);
}
.jxl-chapter__text p:last-child {
  margin-bottom: 0;
}
.jxl-chapter__text strong {
  color: var(--jxl-ink);
}
.jxl-chapter__text ul,
.jxl-chapter__text ol {
  margin: 0 0 12px;
  padding-left: 0;
  list-style: none;
  color: var(--jxl-muted);
}
.jxl-chapter__text ol {
  counter-reset: jxlStep;
}
.jxl-chapter__text li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
}
.jxl-chapter__text ul > li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.7em;
  width: 9px;
  height: 9px;
  border: 2px solid var(--jxl-accent);
  border-radius: 50%;
}
.jxl-chapter__text ol > li {
  counter-increment: jxlStep;
  padding-left: 30px;
}
.jxl-chapter__text ol > li::before {
  content: counter(jxlStep) ".";
  position: absolute;
  left: 2px;
  top: 0;
  font-weight: 700;
  color: var(--jxl-accent);
}

/* ---------- inserts ---------- */
.jxl-note {
  margin: 14px 0 4px;
  padding: 15px 17px;
  background: var(--jxl-accent-wash);
  border: 1px solid rgba(168, 85, 47, 0.3);
  border-radius: var(--jxl-r1);
}
.jxl-note p {
  margin: 0;
  font-size: 15px;
  color: var(--jxl-ink);
}

.jxl-duo {
  margin: 12px 0;
  display: grid;
  gap: 10px;
}
.jxl-duo__item {
  display: grid;
  grid-template-columns: minmax(130px, 36%) 1fr;
  gap: 4px 16px;
  padding: 12px 14px;
  background: var(--jxl-panel);
  border: 1px solid var(--jxl-rule);
  border-radius: var(--jxl-r1);
  box-shadow: var(--jxl-sh1);
  font-size: 15px;
}
.jxl-duo__key {
  font-weight: 700;
  color: var(--jxl-ink);
}
.jxl-duo__val {
  color: var(--jxl-muted);
}
@media (max-width: 560px) {
  .jxl-duo__item {
    grid-template-columns: 1fr;
  }
}

.jxl-board {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 15px;
  background: var(--jxl-panel);
  border: 1px solid var(--jxl-rule);
  border-radius: var(--jxl-r1);
  overflow: hidden;
}
.jxl-board th {
  padding: 11px 14px;
  text-align: left;
  font-size: 14px;
  font-weight: 700;
  color: var(--jxl-ink);
  background: #f1e8d9;
  border-bottom: 2px solid var(--jxl-accent);
}
.jxl-board td {
  padding: 11px 14px;
  border-top: 1px solid var(--jxl-rule);
  color: var(--jxl-muted);
}
.jxl-board tr:nth-child(even) td {
  background: #fbf7ef;
}

.jxl-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}
.jxl-tag {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--jxl-rule);
  background: var(--jxl-panel);
  font-size: 13px;
  font-weight: 600;
  color: var(--jxl-ink);
}

.jxl-afterword {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px 56px;
}
.jxl-afterword__inner {
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px dashed rgba(168, 85, 47, 0.45);
  border-radius: var(--jxl-r2);
  font-size: 15px;
  color: var(--jxl-muted);
}

/* ---------- stacked layout ---------- */
@media (max-width: 900px) {
  .jxl-paper {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }
  .jxl-paper__aside {
    position: static;
    top: auto;
    padding: 14px 16px 10px;
  }
  .jxl-paper__toc {
    columns: 2;
    column-gap: 20px;
  }
  .jxl-paper__toc li {
    break-inside: avoid;
  }
}
@media (max-width: 560px) {
  .jxl-paper__toc {
    columns: 1;
  }
  .jxl-sheet {
    padding-top: 34px;
  }
}

/* ---------- bottom bar ---------- */
.jxl-base {
  margin-top: auto;
  flex-shrink: 0;
  padding: 26px 20px;
  text-align: center;
  background: #efe6d6;
  border-top: 2px solid var(--jxl-accent);
  color: var(--jxl-ink);
}
.jxl-base__inner {
  max-width: 880px;
  margin: 0 auto;
}
.jxl-base__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 22px;
  margin-bottom: 14px;
}
.jxl-base__nav a {
  font-size: 12px;
  color: var(--jxl-muted);
  text-decoration: none;
  border-bottom: 1px solid rgba(168, 85, 47, 0.45);
  padding-bottom: 2px;
}
.jxl-base__nav a:hover {
  color: var(--jxl-accent);
}
.jxl-base__note {
  margin-bottom: 10px;
  font-size: 12px;
  color: var(--jxl-muted);
}
.jxl-base__legal {
  max-width: 760px;
  margin: 0 auto;
  font-size: 11px;
  line-height: 1.75;
  color: #756b5f;
}