:root {
    --header-height: 100px;
    --header-max-width: 1000px;
    --header-title-font-size: 30px;
    --header-navbar-font-size: 18px;
    --icon-size: 30px;
    --line-height: 50px;
    --padding-horizontal: 25px;
    --padding-vertical: 25px;
    --background: whitesmoke;
    --block-background: lightgray;
    --block-color:  #333333;
    --color: #333333;
    --hover-color: gray;
}

body {
    /* margin: 0; */
    background: var(--background);
    color: var(--color);
    font-style: normal;
    /* padding: 0; */
    /* box-sizing: border-box; */
}


* {
    color: var(--color);
}

html, body {
    background: var(--background);
    color: var(--color);
}


.header {
    /* overflow: hidden; */
    position: relative;
    max-width: var(--header-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--padding-horizontal);
    padding-right: var(--padding-horizontal);
    /* height: 100px; */
    background: var(--background);
}

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

.header a:hover {
    color: var(--color);
    text-decoration: underline;
}


.site-name {
    display: inline-block;
    font-size: var(--header-title-font-size);
    line-height: var(--header-height);
}

.right-img {
 float: right;
 padding: 0pt 0pt 0pt 5pt;
 text-padding: 0pt 0pt 0pt 0pt;
 text-align: justify;
}


.left-img {
 float: left;
 padding: 0pt 20pt 0pt 0pt;
 text-padding: 0pt 0pt 0pt 0pt;
 text-align: justify;
}


/* Hint and question drawers */
.org-drawer-container {
  margin: 1em 0;
}

.org-drawer-toggle {
  background-color: var(--background);
  color: var(--color);
  border: 1px solid var(--hover-color);
  padding: 0.5em 1em;
  cursor: pointer;
  font-size: 1em;
  border-radius: 4px;
  width: 100%;
  text-align: left;
  transition: background-color 0.2s;
}

.org-drawer-toggle:hover {
  background-color: var(--background);
  color: var(--hover-color);
}

.org-drawer-toggle.open {
  border-radius: 4px 4px 0 0;
  border-bottom: none;
}

.org-drawer-content {
  border: 1px solid var(--background);
  border-top: none;
  padding: 1em;
  background-color:  var(--background);
  color: var(--color);
  border-radius: 0 0 4px 4px;
}
/* ---------------------------------------- */



@media (max-width: 850px) {
    .navbar {
	display: none;
    }

    .hamburger #myLinks {
	display: none;
    }

    .hamburger a.icon {
	font-size: var(--icon-size);
	position: absolute;
	top: calc(0.5*var(--header-height) - 0.6*var(--icon-size));
	right: 0;
	padding-right: var(--padding-horizontal);
    }


    .menu {
	padding-bottom: var(--padding-horizontal);
    }

    .menu a {
	text-decoration: font;
	none-size: var(--header-navbar-font-size);
	display: block;
	line-height: 50px;
    }

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

}

@media (min-width: 850px) {
    .menu a {
	display: none;
    }

    .hamburger {
	display: none;
    }

    .hamburger #myLinks {
	display: none;
    }

    .navbar {
	float: right;
	width: 500px;
	display: flex;
	justify-content: space-between;
	position: relative;
	top: calc(0.5*var(--header-height) - 0.6*var(--icon-size));
	/* right: 5px; */
    }

    .navbar a {
	text-decoration: none;
	display: inline-block;
	margin: 3pt;
    }

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


}

/* Banner image */
.banner_container {
    max-width: var(--header-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--padding-horizontal);
    padding-right: var(--padding-horizontal);
}

.banner_container img {
    max-width: 100%;
    height: auto;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* Article */
.content {
    margin-left: auto;
    margin-right: auto;
    max-width: 900px;
    padding-top: var(--padding-vertical);
    padding-bottom: var(--padding-vertical);
    padding-left: var(--padding-horizontal);
    padding-right: var(--padding-horizontal);
}

.content a{
    color: #4099FF;
}

.content a:hover{
    color:  #4099FF;
    text-decoration: underline;
}

.content a:visited{
    color: #4099AA;
}

.content a:visited:hover{
    color: #4099AA;
    text-decoration: underline;
}


i, em {
    font-style: italic;
}


span.todo.TODO {
  color: red;
  font-weight: bold;
}


/* monospace code fonts */

code {
    font-family: monospace, monospace;
}


/* Latex */

.latex {
  overflow: visible !important; /* Prevents content clipping */
}

/* /\* Ensure all MathJax containers do not clip content *\/ */
/* .mathjax-container { */
/*   overflow: visible !important; */
/* } */

/* /\* Ensure MathJax spans allow proper rendering *\/ */
/* .MathJax { */
/*   overflow: visible !important; */
/*   display: inline-block; /\* Prevent constraints *\/ */

/* } */

/* Enable text selection and copying in MathJax elements */
.MathJax,
.MathJax_Display,
.MathJax_Preview,
.MathJax_SVG,
.MathJax_MathML {
  user-select: text !important;
  -webkit-user-select: text !important;
  -moz-user-select: text !important;
  -ms-user-select: text !important;
}

/* Ensure MathJax containers don't block selection */
.MathJax_Display {
  cursor: text;
}

/* For MathJax v3 (CHTML and SVG output) */
mjx-container,
mjx-math,
mjx-mtext {
  user-select: text !important;
  -webkit-user-select: text !important;
  -moz-user-select: text !important;
  -ms-user-select: text !important;
}

/* Prevent MathJax from being treated as an image */
.MathJax_SVG svg {
  user-select: text !important;
  pointer-events: all;
}

/* Optional: Style for hover feedback */
.MathJax:hover {
  cursor: text;
}

/* For inline math */
.MathJax_Preview + .MathJax_Display {
  user-select: text !important;
}

/* Footer */
hr {
    width: 100%;
    margin-left:auto;
    margin-right:auto;
    border: none;
    height: 1.5px;
    color: var(--color);
    background-color: var(--color);
}

.footer {
    max-width: 900px;
    color: var(--color);
    margin-left: auto;
    margin-right: auto;
    /* padding-top: var(--padding-vertical); */
    padding-bottom: var(--padding-vertical);
    padding-left: var(--padding-horizontal);
    padding-right: var(--padding-horizontal);
    font-size: 12px;
    text-align: center;
}

.fa {
    text-decoration: none;
}

.src {
    border: 1px solid var(--color);
    padding-top: 10px;
    padding-bottom: 10px;
    padding-left: var(--padding-horizontal);
    padding-right: var(--padding-horizontal);
    overflow: visible; /* scroll; */
}

table {
    /* width: 100%; */
    text-align: left;
    border-top: 1px solid var(--color);
    border-top-width: 2px;
    border-collapse: collapse;
    margin: 0 0 1em 0;
    caption-side: bottom;
    margin-left:auto;
    margin-right:auto;
    font-size: 14px;
}

caption, td, th {
    padding: 0.3em;
}

caption {
    padding-top: 1em;
}

tbody {
    border-top: 1px solid var(--color);
    border-bottom: 1px solid var(--color);
    border-bottom-width: 2px;
}

tbody th, tfoot th {
    border: 0;
}

th.name {
    width: 25%;
}

th.location {
    width: 20%;
}

tfoot {
    text-align: center;
    color: ; #555;
    font-size: 0.8em;
}

/* fix header links */
.content h1 a,
.content h2 a,
.content h3 a,
.content h4 a,
.content h5 a,
.content h6 a  {
    color:  var(--color);
    text-decoration: none;
}


.content h1 a:hover,
.content h2 a:hover,
.content h3 a:hover,
.content h4 a:hover,
.content h5 a:hover,
.content h6 a:hover {
    color: var(--color);
    text-decoration: underline;
}

.content h1 a:visited,
.content h2 a:visited,
.content h3 a:visited,
.content h4 a:visited,
.content h5 a:visited,
.content h6 a:visited {
    color:  var(--color);
}
/* end fix */

/* Dark Mode */
.dark-mode {
    --background: #121212;
    --color: #909090;
    --hover-color: #7b7b7b;
}

/* Center images */
.content img {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.content iframe {
    display: block;
    margin-left: auto;
    margin-right: auto;
}


.content video {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

button {
  background: transparent;
  border: 1px solid currentColor;
  border-radius: 4px;
  padding: 4px 10px;
  color: inherit;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  cursor: pointer;
}

button:hover {
  opacity: 0.7;
}

/* code blocks */

/* wrapper owns the outer border for the whole block */
.src-block-wrapper {
  border: 1px solid #45475a;          /* same color as your pre.src border */
  border-radius: 6px;
  margin: 0 30px 0px 30px;
  overflow: hidden;
}


/* language + copy button */
.src-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.3em 0.85em;
  background: var(--block-background);
  border-radius: 5px 5px 0 0;
  border-bottom: 1px solid #45475a;
}

/* language badge */
.src-lang {
  font-family: monospace;
  font-size: 5pt;
  font-weight: 700;
  letter-spacing: 0.07em;
  background-color: transparent;
  text-transform: uppercase;
  color: #313244;
}

/* copy button  */
.copy-btn {
  font-size: 0.72rem;
  padding: 0.15em 0.6em;
  cursor: pointer;
  background: transparent;
  border: 1px solid #45475a;
  border-radius: 3px;
  color: var(--block-color);
  transition: background 0.1s, color 0.1s;
}
.copy-btn:hover            { background: #313244; color: #cdd6f4; }
.copy-btn--done            { color: #4a8c00; border-color: #4a8c00; }

/* stitch header to code block */
.src-block-wrapper .org-src-container { margin-top: 0;}
.src-block-wrapper pre.src            {
    border-radius: 0 0 5px 0px;
    margin-top: 0; margin-bottom:0;
}

pre.src {
    color: var(--block-color);
    background-color: var(--block-background);
    border: none;
    padding: 1em;
    border-radius: 4px;
    overflow-x: auto;
}

/* remove background from text */
pre.src span {
  background-color: transparent;
}

.org-keyword {
    /* font-lock-keyword-face */
    color: #2878aa;
    font-weight: bold;
}
.org-builtin {
    /* font-lock-builtin-face */
    color: #c0392b;
}
.org-string {
    /* font-lock-string-face */
    color: #4a8c00;
}
.org-success {
    /* success */
    color: #008800;
    font-weight: bold;
}
.org-function-name {
    /* font-lock-function-name-face */
    color: #6a8a00;
}
.org-variable-name {
    /* font-lock-variable-name-face */
    color: #6a8a00;
}
.org-constant {
    /* font-lock-constant-face */
    color: #c0392b;
}
.org-type {
    /* font-lock-type-face */
    color: #527a1a;
    font-weight: bold;
}
.org-comment           { color: #808080; font-style: italic; }
.org-comment-delimiter { color: #808080; font-style: italic; }
/* Bash-specific */
.org-sh-heredoc        { color: #9a8000; font-weight: bold; }
.org-sh-quoted-exec    { color: #c0392b; }
.org-sh-escaped-newline{ color: #4a8c00; }
/* YAML-specific */
.org-yaml-tab          { color: #ff0000; background-color: #ff0000; font-weight: bold; }