html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  transition: background-color var(--transition-duration) ease, color var(--transition-duration) ease;
}

main {
  max-width: var(--content-width);
  margin-inline: auto;
  padding: 1rem var(--gutter);
  padding-top: 0;
}

article {
  max-width: var(--reading-width);
  margin-inline: auto;
}

.youtube {
  display: block;
  margin: 1rem;
  max-width: 100%;
  height: auto;
}
/* Table of Content */

.toc {
  margin: 1rem 0;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--standard-border-radius);
  background-color: var(--accent-bg);
  transition: background-color var(--transition-duration) ease, color var(--transition-duration) ease;
}

.toctitle {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 1.25rem;
}

.toc > ul {
  margin: 0;
}

.toc li > a{
  margin: 0.25rem 0;
  text-decoration: none;
}

.toc-toggle {
  display: block;
  margin: 0.25rem auto 0;
  padding: 0.35rem 0.75rem;
  border: 0px solid var(--border);
  border-radius: var(--standard-border-radius);
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  font: inherit;
  font-size: 0.875rem;
}

.toc-toggle:hover,
.toc-toggle:focus-visible {
  border-color: var(--accent-hover);
  color: var(--accent-hover);
}


details[open] .toc::after {
  content: "Click to collapse";
}

article h1,
article h2,
article h3 {
  font-family: var(--font-display);
  line-height: 1.25;
}

article h2 {
  margin-top: 2rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  font-size: clamp(1.5rem, 3vw, 1.75rem);
}

article h3 {
  margin-top: 1.5rem;
  font-size: 1.25rem;
}

::selection {
  background: var(--accent);
  color: var(--bg);
}

/* Hidden by opacity */
.anchor {
  display: inline-block;
  opacity: 0;
  color: var(--accent);
    transition:
    opacity 150ms ease,
    visibility 150ms ease;
}

/* Show anchor on hover */
article h1:hover .anchor, 
article h2:hover .anchor,
article h3:hover .anchor,
article h4:hover .anchor,
article h5:hover .anchor,
article h6:hover .anchor {
  display:inline-flex;
  color:var(--accent-hover);
  margin-inline-start:1rem;
  font-weight:700;
  user-select:none;
}

article :is(h1, h2, h3, h4, h5, h6):hover .anchor,
article :is(h1, h2, h3, h4, h5, h6):focus-within .anchor,
.anchor:focus-visible {
  opacity: 1;
  visibility: visible;
}

.anchor:hover,
.anchor:focus-visible {
  color: var(--accent-hover);
}

/* REM for major headings */
h1,
h2 {
  font-family: "REM", sans-serif;
  font-weight: 700;
  margin: 0.75rem 0;
}

h3,
h4,
h5,
h6 {
  font-family: "Roboto", sans-serif;
}

/* Narrower, readable article column */
main {
  max-width: 1080px;
  margin-inline: auto;
}

/* Portfolio-style structural lines */
hr {
  border-color: var(--border);
  opacity: 0.7;
}

/* Links use your cornflower-blue accent */
a,
a:visited {
  color: var(--accent);
}

a:hover,
a:focus-visible {
  color: var(--accent-hover);
}

/* Code blocks from Pygments/codehilite */
.codehilite {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  padding: 1rem;
  font-family: var(--mono-font);
  font-size: 0.875rem;
}

.codehilite pre {
  margin: 0;
}

/* Inline code */
:not(pre) > code {
  border: 0px solid var(--border);
  background-color: var(--marked);
  border-radius: 0.375rem;
  padding: 0.1em 0.3em;
  font-family: var(--mono-font);
}

/* Media */
img,
video {
  max-width: 100%;
  height: auto;
}

video {
  display: block;
  margin: 1.5rem 0;
}

iframe.youtube {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border: 0;
  margin: 1.5rem 0;
}

/* Wide tables should scroll on mobile */
table {
  display: block;
  overflow-x: auto;
  white-space: nowrap;
  border-collapse: collapse;
}

th, td {
  padding: 0.25rem 0.5rem;
  text-align: left;
}

tr {
  border-bottom: 1px solid var(--border);
}

tbody tr:nth-child(even) {
  background-color: var(--accent-bg);
}

/* Break long URLs */
p,
li,
td,
th {
  overflow-wrap: anywhere;
}

blockquote {
  margin:20px 0;
  padding:0 14px;
  border-inline-start:3px solid var(--text-light);
}

details {
  border: 1px solid var(--border);
  border-radius: var(--standard-border-radius);
  background-color: var(--accent-bg);
}

.note p {
  padding: 0.5rem;
  margin: 0;
}

summary {
  list-style: none; /* Removes marker in modern browsers */
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: bold;
}

/* Custom indicator */
summary::after {
  font-weight: light;
  content: ">";
  transition: transform 0.2s ease;
}

/* Rotate when open */
details[open] summary::after {
  transform: rotate(90deg);
}

.note {
  border: 1px solid var(--note-border);
  background-color: var(--note-background);
}

.note summary, .note .admonition {
  padding: 0.25rem 0.5rem;
  border-radius: var(--standard-border-radius)
    var(--standard-border-radius) 0 0;
  background-color: var(--note-heading);
  color: var(--note-heading-text);
  font-weight: 600;
}

.note p {
  color: var(--text);
}

.admonition {
  border: 1px solid var(--note-border);
  background-color: var(--note-background);
  border-radius: var(--standard-border-radius);
}

.admonition-title {
  border-radius: var(--standard-border-radius)
    var(--standard-border-radius) 0 0;
  background-color: var(--note-heading);
  color: var(--note-heading-text);
  font-weight: 600;
}

/* Responsive Layout (Mobile) */
@media (max-width: 576px) {
  p,li,td,th {
    font-size: 1.1rem;
  }
}

.imgflex{
  display: flex;
  flex-wrap: wrap;
  margin: 10px;
  gap: 20px;
  justify-content: center;
  align-items: space-evenly;
  max-width: 150%;
  overflow: hidden;
}

.imgflex img {
  height: 230px;
  width: auto;
}

.carousel-item {
  height: 230px;
  width: 360px;
  overflow: hidden;
}

.carousel-item img {
  object-fit: cover;
  object-position: top;
}

/* Shared site header */

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  flex: none;
  margin: 0 0.5rem;
  background: transparent;
  border: none;
}

@media (max-width: 576px) {
  .theme-toggle { margin-left: auto; }
  .site-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
  }
}

.site-header {
  background: var(--accent-bg);
  border-bottom: 1px solid var(--border);
    transition: background-color var(--transition-duration) ease, color var(--transition-duration) ease;
}

.site-header-elements {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin: 0 2rem 0;
  padding: 0;
  list-style: none;
}

.site-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text);
  text-decoration: none;
  margin-left: 2rem;
}

.site-brand:visited {
  color: var(--text);
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.5rem;
  padding: 0.1rem 0.75rem;

  border: 1px solid transparent;
  border-radius: var(--standard-border-radius);

  color: var(--text-light);
  font-family: var(--font-mono);
  text-decoration: none;
}

.site-nav a:hover {
  border-color: var(--border);
  color: var(--text);
}

.site-nav a[aria-current="page"] {
  border-bottom: 3px solid var(--text-light);
}

@media (max-width: 576px) {
  .site-header-elements {
    flex-wrap: wrap;
    gap: 0.1rem;
    padding-block: 0.25rem;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav ul {
    width: max-content;
    margin: auto;
  }

  .site-nav a {
    min-height: 2rem;
  }

  .site-brand {
    margin-left: 0;
  }
}

/* Footer */
.site-footer {
  background: var(--accent-bg);
  border-top: 1px solid var(--border);
  padding: 0.5rem var(--gutter);
  font-size: 0.875rem;
}