html, body {
  color: #333;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  font-family: Helvetica, arial, freesans, clean, sans-serif;
  font-size: 1em;
  line-height: 1.5em;
  background-color: #fff;
  overscroll-behavior-y: none;
}

body {
  display: flex;
  flex-direction: column;
  height:100vh;
}

h1, h2, h3, h4, h5, h6, p {
  font-size: 1em;
  margin: 0;
  padding: 0;
  font-weight: normal;
}

p {
  margin: 1em;
}

a:link,
a:visited,
a:hover
a:active {
  text-decoration: none;
}

img {
  border: none;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  width: 100%;
  background-color: #444;
  font-size: 12px;
  color: #fff;
}

header a:link, header a:hover, header a:visited, header a:active {
  color: #fff;
}

header a:hover {
  text-decoration: underline;
}

#menu-items {
    display: flex;
}

#open-button {
    margin-left: 16px;
    padding: 0;
    border: 0;
    background: none;
    color: inherit;
    font: inherit;
    cursor: pointer;
}

#open-button:hover {
    text-decoration: underline;
}

#open-button:disabled {
    opacity: 0.6;
    cursor: wait;
}

#reset-button {
    margin-left: 16px;
}

#copy-button {
    margin-left: 16px;
}

#export-button {
    margin-left: 16px;
}

#sync-button {
    margin-left: 16px;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

header input[type="checkbox"] {
    vertical-align: middle;
    margin-right: 4px;
    margin-top: 0px;
}

#github {
    padding-right: 32px;
}

#github img {
  display: block;
  width: 16px;
}

footer {
  padding: 8px;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: #fff;
  color: #fff;
  text-align: center;
  justify-content: center;
  align-items: center;
}

#container {
  flex-grow: 1;
  overflow: hidden;
  width: 100%;
  margin: 0 auto;
  background-color: #fff;
  border-bottom: 1px solid #e8e8e8;
  display: flex;
}

#editor-wrapper {
  height: 100%;
}

#editor {
  height: 100%;
}

#preview-wrapper {
  padding: 8px 16px 16px 16px;
}

.column {
  width: 50%;
  padding: 0;
  margin: 0;
  white-space: nowrap;
  vertical-align: top;
}

#preview.column {
  overflow-y: scroll;
  white-space: normal;
}

.markdown-body .mermaid {
  overflow-x: auto;
  padding: 16px;
  text-align: center;
}

.markdown-body .mermaid svg {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}

/* Print/PDF export */
@media print {
  @page {
    size: A4 portrait;
    margin: 10mm;
  }

  html,
  body,
  #container,
  #preview,
  #preview-wrapper,
  #output {
    margin: 0;
    padding: 0;
    width: 100%;
    max-width: 100%;
    height: auto;
    overflow: visible;
    background: #fff;
    color: #24292f;
  }

  header,
  footer,
  #edit,
  #split-divider {
    display: none !important;
  }

  #container,
  #preview {
    display: block;
    border: 0;
  }

  * {
    box-sizing: border-box;
  }

  .markdown-body {
    font-size: 12px;
    line-height: 1.5;
  }

  .markdown-body img,
  .markdown-body table {
    max-width: 100%;
  }

  .markdown-body .mermaid {
    width: 100%;
    max-width: 100%;
    overflow: visible;
    padding: 12px 0;
    margin: 16px 0;
    text-align: center;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .markdown-body .mermaid svg {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    margin: 0 auto;
    color-scheme: light;
    background: #fff;
  }

  /* Keep section titles with the opening content of their section. */
  .markdown-body h1,
  .markdown-body h2,
  .markdown-body h3,
  .markdown-body h4,
  .markdown-body h5,
  .markdown-body h6 {
    break-after: avoid-page;
    page-break-after: avoid;
  }

  .markdown-body h1 + *,
  .markdown-body h2 + *,
  .markdown-body h3 + *,
  .markdown-body h4 + *,
  .markdown-body h5 + *,
  .markdown-body h6 + * {
    break-before: avoid-page;
    page-break-before: avoid;
  }

  .markdown-body p,
  .markdown-body li {
    orphans: 3;
    widows: 3;
  }

  .markdown-body pre,
  .markdown-body blockquote,
  .markdown-body table,
  .markdown-body img {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}

.markdown-body .mermaid-error {
  color: #cf222e;
  white-space: pre-wrap;
  text-align: left;
}

[data-theme="dark"] .markdown-body .mermaid-error {
  color: #ff7b72;
}

.split-container {
  display: flex;
  height: 100%;
  width: 100%;
}

.editor-pane,
.preview-pane {
  height: 100%;
}

.split-divider {
  width: 5px;
  background: #ccc;
  cursor: col-resize;
  z-index: 1;
}

.split-divider.hover {
  background: #999;
}

.split-divider.active {
  background: #666;
}

/* Dark theme overrides */
[data-theme="dark"] html, [data-theme="dark"] body {
  background-color: #212830;
  color: #e6edf3;
}

[data-theme="dark"] header {
  background-color: #333;
  color: #e6edf3;
}

[data-theme="dark"] header a:link, [data-theme="dark"] header a:hover, [data-theme="dark"] header a:visited {
  color: #e6edf3;
}

[data-theme="dark"] #container {
  background-color: #212830;
  border-bottom: 1px solid #1f2d3a;
}

[data-theme="dark"] .split-divider {
  background: #30363d;
}

[data-theme="dark"] .split-divider.hover {
  background: #444c56;
}

[data-theme="dark"] .split-divider.active {
  background: #768390;
}

[data-theme="dark"] footer {
  background-color: #333;
}

/* ===== Padrão global de scroll (estilo Radix ScrollArea, auto-hide) ===== */
:root { --scroll-thumb: #E2E8F0; --scroll-thumb-hover: #CBD5E1; }
[data-theme="dark"] { --scroll-thumb: #1E293B; --scroll-thumb-hover: #334155; }

* { scrollbar-width: thin; scrollbar-color: transparent transparent; }
*:hover, .is-scrolling { scrollbar-color: var(--scroll-thumb) transparent; }

::-webkit-scrollbar { width: 10px; height: 10px; background: transparent; }
::-webkit-scrollbar-track, ::-webkit-scrollbar-corner { background: transparent; }
::-webkit-scrollbar-thumb {
  background-color: transparent;
  border-radius: 9999px;
  border: 1px solid transparent;
  background-clip: padding-box;
}
*:hover::-webkit-scrollbar-thumb,
.is-scrolling::-webkit-scrollbar-thumb { background-color: var(--scroll-thumb); }
::-webkit-scrollbar-thumb:hover { background-color: var(--scroll-thumb-hover); }

#preview.column { overflow-y: auto; }

/* Monaco (editor) */
.monaco-editor .scrollbar { background: transparent !important; }
.monaco-editor .scrollbar .slider {
  background: var(--scroll-thumb) !important;
  border-radius: 9999px;
}
.monaco-editor .scrollbar .slider:hover,
.monaco-editor .scrollbar .slider.active { background: var(--scroll-thumb-hover) !important; }
.monaco-editor .scrollbar.vertical .slider { left: 1px !important; width: 8px !important; }
.monaco-editor .scrollbar.horizontal .slider { top: 1px !important; height: 8px !important; }