/* ==========================================================================
   VPNVL — deepdoc.css
   Page-scoped layout for the long-form technical reference.
   Depends on tokens from base.css and components.css.
   ========================================================================== */

.deepdoc {
  position: relative;
  z-index: 1;
  padding-bottom: 40px;
}

.doc-head {
  padding-bottom: 6px;
}
.doc-head h1 {
  max-width: 22em;
}
.doc-head .lead {
  max-width: 880px;
}
.doc-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
}
.doc-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}
.doc-platforms {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--muted);
}
.doc-platforms b {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--text-2);
}

.deepdoc .toc-tabs {
  max-width: 860px;
  margin-inline: auto;
  margin-bottom: 28px;
}

.deepdoc-body {
  max-width: 860px;
  margin-inline: auto;
  min-width: 0;
}
.deepdoc-body section {
  min-width: 0;
}
.deepdoc-body section[id] {
  scroll-margin-top: 86px;
}
.deepdoc-body section + section {
  margin-top: 46px;
  padding-top: 34px;
  border-top: 1px solid var(--border-soft);
}
.deepdoc-body h2 {
  margin: 10px 0 16px;
}
.deepdoc-body h3 {
  margin: 28px 0 10px;
}
.deepdoc-body p,
.deepdoc-body li {
  font-size: 15.5px;
  line-height: 1.78;
}
.deepdoc-body .table-scroll {
  margin: 18px 0 10px;
}
.deepdoc-body .callout {
  margin: 24px 0;
}
.deepdoc-body .faq {
  margin-top: 18px;
}

.dd-table-note {
  margin: 0 0 8px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.dd-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 24px 0;
}
.dd-pick {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  padding: 20px 18px;
  border-radius: var(--r-lg);
  background: var(--panel-3);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-panel);
}
.dd-pick-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent-dark);
}
.dd-pick h3 {
  margin: 0;
  font-size: 16px;
  line-height: 1.35;
}
.dd-pick p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.deepdoc-body .dd-steps {
  counter-reset: ddstep;
  list-style: none;
  margin: 20px 0 26px;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.deepdoc-body .dd-steps > li {
  counter-increment: ddstep;
  position: relative;
  margin: 0;
  padding: 15px 16px 15px 54px;
  border-radius: var(--r-md);
  background: var(--panel-3);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-panel);
}
.deepdoc-body .dd-steps > li::before {
  content: counter(ddstep, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  min-height: 26px;
  padding: 0 4px;
  border-radius: var(--r-sm);
  background: var(--accent-06);
  border: 1px solid var(--accent-16);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  line-height: 1;
  color: var(--accent-dark);
}
.deepdoc-body .dd-steps > li strong {
  color: var(--text);
}

@media (max-width: 1024px) {
  .dd-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .deepdoc {
    padding-bottom: 24px;
  }
  .deepdoc .toc-tabs {
    max-width: 100%;
  }
  .deepdoc-body {
    max-width: 100%;
  }
  .deepdoc-body section + section {
    margin-top: 34px;
    padding-top: 26px;
  }
  .dd-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .deepdoc-body .dd-steps > li {
    padding-left: 48px;
  }
  .deepdoc-body .dd-steps > li::before {
    left: 12px;
  }
}