#diary-wrapper {
  display: flex;
  width: 100%;
  min-height: 500px;
  text-align: left;
}

#diary-sidebar {
  width: 220px;
  min-width: 220px;
  border-right: 1px solid #d0d7de;
  background: #f6f8fa;
  overflow-y: auto;
  font-size: 13px;
  font-variant: normal;
}

#diary-sidebar .sec {
  margin: 4px 0;
}

#diary-sidebar .sh {
  padding: 4px 12px;
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #656d76;
  cursor: pointer;
  user-select: none;
}

#diary-sidebar .sh::before {
  content: '\25BE';
  display: inline-block;
  width: 12px;
  margin-right: 2px;
  font-size: 10px;
  transition: transform 0.15s;
}

#diary-sidebar .sec.collapsed .sh::before {
  transform: rotate(-90deg);
}

#diary-sidebar .sec.collapsed .si,
#diary-sidebar .sec.collapsed .sec {
  display: none;
}

#diary-sidebar .sec .sec {
  margin-left: 12px;
}

#diary-sidebar .si {
  padding: 2px 12px 2px 24px;
  color: #1f2328;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#diary-sidebar .si:hover {
  background: #ddf4ff;
  color: #0969da;
}

#diary-sidebar .si.on {
  background: #ddf4ff;
  color: #0969da;
  font-weight: 600;
}

#diary-sidebar .si.empty {
  color: #8b949e;
  cursor: default;
  font-style: italic;
}

#diary-sidebar .si.empty:hover {
  background: none;
  color: #8b949e;
}

#diary-pane {
  flex: 1;
  padding: 24px 32px;
  overflow-y: auto;
  font-variant: normal;
  line-height: 1.7;
  color: #1f2328;
  min-height: 400px;
}

#diary-pane .loading {
  text-align: center;
  padding: 60px 20px;
  color: #656d76;
  font-size: 14px;
  font-variant: normal;
}

#diary-pane h1 { font-size: 26px; font-weight: 700; margin: 16px 0 8px; padding-bottom: 4px; border-bottom: 1px solid #d0d7de; }
#diary-pane h2 { font-size: 22px; font-weight: 600; margin: 14px 0 6px; }
#diary-pane h3 { font-size: 18px; font-weight: 600; margin: 12px 0 4px; }
#diary-pane h4 { font-size: 16px; font-weight: 600; margin: 10px 0 4px; }

#diary-pane p { margin: 8px 0; }

#diary-pane a {
  color: #0969da;
  text-decoration: none;
  font-weight: 400;
}

#diary-pane a:hover {
  text-decoration: underline;
}

#diary-pane a.wl {
  color: #0969da;
}

#diary-pane a.wl.dead {
  color: #8b949e;
  cursor: not-allowed;
}

#diary-pane a.wl.dead:hover {
  text-decoration: none;
}

#diary-pane strong { font-weight: 700; }
#diary-pane em { font-style: italic; }

#diary-pane blockquote {
  margin: 8px 0;
  padding: 4px 12px;
  border-left: 3px solid #d0d7de;
  color: #656d76;
}

#diary-pane ul, #diary-pane ol {
  margin: 8px 0;
  padding-left: 24px;
}

#diary-pane li { margin: 2px 0; }

#diary-pane code {
  background: #f6f8fa;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, monospace;
  font-size: 13px;
}

#diary-pane pre {
  background: #f6f8fa;
  padding: 12px 16px;
  border-radius: 6px;
  overflow-x: auto;
}

#diary-pane pre code {
  background: none;
  padding: 0;
}

#diary-pane img {
  max-width: 100%;
  border-radius: 4px;
  margin: 8px 0;
}

#diary-pane hr {
  border: none;
  border-top: 1px solid #d0d7de;
  margin: 16px 0;
}

#diary-pane .embed-note {
  margin: 8px 0;
  padding: 8px 12px;
  border-left: 2px solid #d0d7de;
  background: #f6f8fa;
  border-radius: 4px;
}

@media (max-width: 780px) {
  #diary-wrapper {
    flex-direction: column;
  }
  #diary-sidebar {
    width: 100%;
    min-width: unset;
    border-right: none;
    border-bottom: 1px solid #d0d7de;
    max-height: 200px;
  }
  #diary-pane {
    padding: 16px;
  }
}