.doc-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 880px);
  gap: 40px;
  min-height: calc(100svh - var(--topbar));
  padding: 34px 36px 80px;
  background:
    linear-gradient(90deg, rgba(15, 79, 56, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(15, 79, 56, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: 64px 64px;
}

.doc-nav {
  position: sticky;
  top: calc(var(--topbar) + 28px);
  display: grid;
  align-self: start;
  gap: 8px;
}

.doc-nav a,
.doc-back-link {
  color: var(--ink);
  font-weight: 640;
  text-decoration: none;
}

.doc-nav a {
  padding: 10px 12px;
  border-left: 2px solid transparent;
  color: var(--muted);
}

.doc-nav a.active,
.doc-nav a:hover {
  border-left-color: var(--forest);
  color: var(--forest);
  background: rgba(15, 79, 56, 0.06);
}

.doc-back-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 18px;
  border-left: 1px solid var(--line);
}

.doc-page {
  max-width: 880px;
  padding-bottom: 60px;
}

.doc-header {
  display: grid;
  gap: 12px;
  margin-bottom: 30px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.doc-header h1,
.doc-page h1,
.doc-page h2,
.doc-page h3,
.doc-page h4 {
  max-width: 760px;
  color: var(--ink);
  line-height: 1.04;
  letter-spacing: 0;
}

.doc-header h1 {
  margin: 0;
  font-size: 48px;
  font-weight: 700;
}

.doc-header p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.45;
}

.doc-page h1 {
  margin: 30px 0 14px;
  font-size: 36px;
}

.doc-page h2 {
  margin: 34px 0 12px;
  font-size: 28px;
}

.doc-page h3 {
  margin: 26px 0 10px;
  font-size: 21px;
}

.doc-page h4 {
  margin: 22px 0 8px;
  font-size: 17px;
}

.doc-page p,
.doc-page li {
  max-width: 760px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.62;
}

.doc-page p {
  margin: 0 0 16px;
}

.doc-page a {
  color: var(--forest);
  font-weight: 650;
  text-decoration-color: rgba(15, 79, 56, 0.28);
  text-underline-offset: 3px;
}

.doc-page ul,
.doc-page ol {
  display: grid;
  gap: 8px;
  margin: 0 0 18px;
  padding-left: 24px;
}

.doc-page code {
  padding: 2px 5px;
  border: 1px solid var(--line);
  background: rgba(15, 79, 56, 0.06);
  color: var(--ink);
  font-size: 0.92em;
}

.doc-page pre {
  max-width: 100%;
  margin: 18px 0 24px;
  padding: 18px;
  overflow-x: auto;
  border: 1px solid var(--line);
  background: #17392f;
  color: #fffdf8;
}

.doc-page pre code {
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font-size: 14px;
  line-height: 1.55;
}

.doc-page img {
  display: block;
  max-width: min(100%, 720px);
  height: auto;
  margin: 20px 0 28px;
  border: 1px solid var(--line);
}

.doc-table {
  max-width: 100%;
  margin: 18px 0 26px;
  overflow-x: auto;
  border: 1px solid var(--line);
}

.doc-table table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  background: rgba(255, 253, 248, 0.78);
}

.doc-table th,
.doc-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.doc-table th {
  color: var(--ink);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.doc-table td {
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 980px) {
  .doc-shell {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px 20px 56px;
  }

  .doc-nav {
    position: static;
    display: flex;
    flex-wrap: wrap;
  }

  .doc-nav .section-kicker {
    flex-basis: 100%;
  }

  .doc-nav a {
    border-left: 0;
    border-bottom: 2px solid transparent;
  }

  .doc-nav a.active,
  .doc-nav a:hover {
    border-bottom-color: var(--forest);
  }

  .doc-header h1 {
    font-size: 34px;
  }
}