.doc-wrap {
  width: min(100%, 960px);
}

.doc-header {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  margin-bottom: 20px;
}

.doc-title {
  margin: 0 0 12px;
  font-family: "Calistoga", serif;
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.doc-subtitle {
  margin: 0;
  color: var(--muted-fg);
  line-height: 1.7;
}

.toc {
  margin-top: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.toc h2 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}

.toc ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 6px;
}

.toc a {
  text-decoration: none;
  color: var(--fg);
}

.toc a:hover {
  color: var(--accent);
}

.section {
  margin-top: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.section h2 {
  margin: 0 0 14px;
  font-size: 1.26rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section h3 {
  margin: 18px 0 8px;
  font-size: 1.04rem;
  color: var(--accent);
}

.section h4 {
  margin: 14px 0 8px;
  font-size: 0.96rem;
  color: var(--fg);
}

.section p,
.section li {
  line-height: 1.7;
}

.section ul,
.section ol {
  padding-left: 22px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0;
}

th,
td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
}

th {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  color: var(--accent);
  background: var(--muted);
}

code {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  background: var(--muted);
  border-radius: 6px;
  padding: 2px 6px;
}

pre {
  margin: 10px 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #f3f8fd;
  padding: 14px;
  overflow-x: auto;
}

pre code {
  background: transparent;
  padding: 0;
  display: block;
  line-height: 1.65;
}

.note {
  border-left: 3px solid var(--accent);
  background: var(--accent-light);
  border-radius: 8px;
  padding: 10px 12px;
}

.note.warn {
  border-left-color: var(--warn);
  background: var(--warn-soft);
}

.note.important {
  border-left-color: var(--danger);
  background: var(--danger-soft);
}

.flow-chart {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--muted);
  padding: 16px;
  display: grid;
  gap: 8px;
  justify-items: center;
}

.flow-box {
  width: min(100%, 460px);
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 10px;
  padding: 10px 12px;
  text-align: center;
  font-size: 0.92rem;
}

.flow-box.primary {
  border-color: var(--accent-border);
  background: var(--accent-light);
}

.flow-arrow {
  color: var(--muted-fg);
  font-family: "JetBrains Mono", monospace;
}

@media (max-width: 520px) {
  .doc-title {
    font-size: 2.2rem;
  }

  .section {
    padding: 16px;
  }
}