/*
 * Additions on top of Jon Barron's stylesheet.css (which is kept unmodified):
 * site-wide reading sizes, dark mode, the theme toggle, blog post styles, and a phone layout.
 */

/* ---- site-wide typography ----
   stylesheet.css pins text to 14px. The whole site uses a reading size in line with ML blogs
   (Distill, Lilian Weng, Sander Dieleman use roughly 17-19px body text). */
body,
td,
th,
tr,
p,
a,
strong,
.papertitle {
  font-size: 17px;
}
body {
  line-height: 1.55;
}
.name {
  font-size: 38px;
}
.site-name {
  font-size: 28px;
}
h2 {
  font-size: 25px;
}
/* The name on the home page is an <h1> (for search engines) styled like Barron's .name paragraph. */
h1.name {
  font-weight: normal;
}
/* Barron's footer uses an inline font-size:small (13px). */
p[style*="font-size:small"] {
  font-size: 15px !important;
}

/* ---- dark mode (toggled from the footer; light is the default) ---- */

/* Explicit colors, so browsers in dark mode don't paint a dark default behind the light page. */
html {
  color-scheme: light;
  background: #ffffff;
  color: #000000;
}
[data-theme="dark"] {
  color-scheme: dark;
  background: #161616;
}
[data-theme="dark"] body {
  color: #e4e4e4;
}
[data-theme="dark"] a {
  color: #5aa9f5;
}
[data-theme="dark"] a:focus,
[data-theme="dark"] a:hover {
  color: #f5a54a;
}
[data-theme="dark"] tr[bgcolor],
[data-theme="dark"] span.highlight {
  background-color: #2e2c17;
}

/* Callout box on the home page (e.g. the PhD search note). */
.notice {
  background-color: #ffffd0;
  padding: 12px 16px;
  border-radius: 10px;
  margin: 0 0 24px;
}
[data-theme="dark"] .notice {
  background-color: #2e2c17;
  border: 1px solid #4a4626;
}

.theme-toggle {
  background: none;
  border: 0;
  padding: 0 0 0 0.35em;
  color: #1772d0;
  font-size: 1.15em;
  line-height: 1;
  cursor: pointer;
}
[data-theme="dark"] .theme-toggle {
  color: #5aa9f5;
}
.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: #f09228;
}

/* Notice shown after clicking an email link (the script is in _includes/head-extras.html). */
.email-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 10;
  width: max-content;
  max-width: calc(100% - 32px);
  box-sizing: border-box;
  padding: 10px 16px;
  border-radius: 8px;
  background: #222222;
  color: #ffffff;
  font-size: 15px;
  overflow-wrap: anywhere;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transform: translate(-50%, 8px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}
.email-toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}
[data-theme="dark"] .email-toast {
  background: #e4e4e4;
  color: #161616;
}

/* ---- blog ---- */

.post-date {
  color: #666;
}
[data-theme="dark"] .post-date,
[data-theme="dark"] .post-meta {
  color: #9a9a9a;
}

.post-title {
  margin: 12px 0 10px;
  font-weight: normal;
  font-size: 40px;
  line-height: 1.15;
}
.post-meta {
  color: #666;
  margin: 0 0 44px;
  font-size: 15px;
}

/* Posts get a slightly taller line height for long-form reading. */
.post-content,
.post-content p,
.post-content li,
.post-content a,
.post-content strong,
.post-content blockquote {
  font-size: 17px;
  line-height: 1.7;
}
.post-content td,
.post-content th {
  font-size: 15px;
  line-height: 1.5;
}
.post-content figcaption,
.post-content figcaption a,
.post-content figcaption strong {
  font-size: 15px;
  line-height: 1.55;
  color: #555;
}
[data-theme="dark"] .post-content figcaption,
[data-theme="dark"] .post-content figcaption strong {
  color: #a8a8a8;
}
.post-content figure {
  margin: 28px 0;
}
.post-content {
  overflow-wrap: break-word;
}
.post-content h2 {
  font-size: 25px;
  margin: 1.8em 0 0.5em;
}
.post-content h3 {
  font-weight: normal;
  font-size: 21px;
  margin: 1.5em 0 0.4em;
}
.post-content h4 {
  font-weight: 700;
  font-size: 17px;
  margin: 1.4em 0 0.3em;
}

/* Table of contents */
.post-content .toc {
  background: #f7f7f7;
  border-radius: 8px;
  padding: 14px 22px 10px;
  margin: 24px 0 32px;
}
.post-content .toc ul {
  list-style: none;
  margin: 4px 0;
  padding-left: 0;
}
.post-content .toc ul ul {
  padding-left: 1.4em;
}
.post-content .toc li,
.post-content .toc a {
  font-size: 16px;
  line-height: 1.6;
}
[data-theme="dark"] .post-content .toc {
  background: #242424;
  border: 1px solid #3a3a3a;
}
.post-content img,
.post-content video {
  max-width: 100%;
  height: auto;
}
.post-content figure img,
.post-content figure video {
  display: block;
  margin: 0 auto 6px;
  border-radius: 6px;
}
.post-content ol.references li,
.post-content ol.references li a {
  font-size: 14.5px;
  line-height: 1.55;
  margin-bottom: 6px;
}
.post-content blockquote {
  margin: 1.25em 0;
  padding: 0 1em;
  border-left: 3px solid #ddd;
  color: #666;
}
.post-content table {
  border-collapse: collapse;
  margin: 1.25em 0;
  display: block;
  overflow-x: auto;
}
.post-content th,
.post-content td {
  border: 1px solid #ddd;
  padding: 0.35em 0.75em;
}
.post-content hr {
  border: 0;
  border-top: 1px solid #ddd;
  margin: 2em 0;
}
.post-content .footnotes,
.post-content .footnotes p,
.post-content .footnotes li {
  font-size: 13px;
  color: #666;
}
[data-theme="dark"] .post-content blockquote,
[data-theme="dark"] .post-content .footnotes,
[data-theme="dark"] .post-content .footnotes p {
  color: #9a9a9a;
}
[data-theme="dark"] .post-content blockquote,
[data-theme="dark"] .post-content th,
[data-theme="dark"] .post-content td,
[data-theme="dark"] .post-content hr {
  border-color: #333;
}

.post-pager {
  display: flex;
  justify-content: space-between;
  gap: 1em;
  margin-top: 3em;
}

/* ---- math ---- */

.math-display,
mjx-container[display="true"] {
  overflow-x: auto;
  overflow-y: hidden;
  max-width: 100%;
}
.math-display {
  margin: 1.25em 0;
}

/* ---- code ---- */

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.875em;
}
:not(pre) > code {
  background: #f3f4f6;
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
pre {
  background: #f6f8fa;
  padding: 1em;
  border-radius: 6px;
  overflow-x: auto;
  line-height: 1.5;
}
pre code {
  font-size: 1em;
}
[data-theme="dark"] :not(pre) > code,
[data-theme="dark"] pre {
  background: #22272e;
}
[data-theme="dark"] pre {
  border: 1px solid #373e47;
}
.highlight {
  margin: 1.25em 0;
}
.highlight pre {
  margin: 0;
}

/* Rouge syntax highlighting (GitHub-like) */
.highlight .c, .highlight .c1, .highlight .cm, .highlight .cs, .highlight .cp { color: #6e7781; font-style: italic; }
.highlight .k, .highlight .kd, .highlight .kn, .highlight .kp, .highlight .kr, .highlight .kt, .highlight .ow { color: #cf222e; }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .sd, .highlight .se, .highlight .sh, .highlight .si, .highlight .sx, .highlight .sr { color: #0a3069; }
.highlight .m, .highlight .mi, .highlight .mf, .highlight .mh, .highlight .mo, .highlight .kc, .highlight .no { color: #0550ae; }
.highlight .nf, .highlight .fm, .highlight .nc, .highlight .nn { color: #8250df; }
.highlight .nb, .highlight .bp, .highlight .nd { color: #953800; }
.highlight .gd { color: #82071e; background: #ffebe9; }
.highlight .gi { color: #116329; background: #dafbe1; }

[data-theme="dark"] .highlight .c, [data-theme="dark"] .highlight .c1, [data-theme="dark"] .highlight .cm, [data-theme="dark"] .highlight .cs, [data-theme="dark"] .highlight .cp { color: #8b949e; }
[data-theme="dark"] .highlight .k, [data-theme="dark"] .highlight .kd, [data-theme="dark"] .highlight .kn, [data-theme="dark"] .highlight .kp, [data-theme="dark"] .highlight .kr, [data-theme="dark"] .highlight .kt, [data-theme="dark"] .highlight .ow { color: #ff7b72; }
[data-theme="dark"] .highlight .s, [data-theme="dark"] .highlight .s1, [data-theme="dark"] .highlight .s2, [data-theme="dark"] .highlight .sb, [data-theme="dark"] .highlight .sd, [data-theme="dark"] .highlight .se, [data-theme="dark"] .highlight .sh, [data-theme="dark"] .highlight .si, [data-theme="dark"] .highlight .sx, [data-theme="dark"] .highlight .sr { color: #a5d6ff; }
[data-theme="dark"] .highlight .m, [data-theme="dark"] .highlight .mi, [data-theme="dark"] .highlight .mf, [data-theme="dark"] .highlight .mh, [data-theme="dark"] .highlight .mo, [data-theme="dark"] .highlight .kc, [data-theme="dark"] .highlight .no { color: #79c0ff; }
[data-theme="dark"] .highlight .nf, [data-theme="dark"] .highlight .fm, [data-theme="dark"] .highlight .nc, [data-theme="dark"] .highlight .nn { color: #d2a8ff; }
[data-theme="dark"] .highlight .nb, [data-theme="dark"] .highlight .bp, [data-theme="dark"] .highlight .nd { color: #ffa657; }
[data-theme="dark"] .highlight .gd { color: #ffdcd7; background: #67060c; }
[data-theme="dark"] .highlight .gi { color: #aff5b4; background: #033a16; }

/* Smooth jumps for in-page links (section references, citations). */
html {
  scroll-behavior: smooth;
}
.post-content h2,
.post-content h3,
.post-content ol.references li {
  scroll-margin-top: 16px;
}

/* ---- phones ---- */

@media (max-width: 640px) {
  body {
    margin: 0 6px;
  }
  body,
  td,
  th,
  tr,
  p,
  a,
  strong,
  .papertitle,
  .post-content,
  .post-content p,
  .post-content li,
  .post-content a,
  .post-content strong,
  .post-content blockquote {
    font-size: 16px;
  }
  .name {
    font-size: 30px;
  }
  .site-name {
    font-size: 24px;
  }
  .post-title {
    font-size: 30px;
  }
  .post-meta {
    margin-bottom: 32px;
  }
  .post-content h2 {
    font-size: 22px;
  }
  .post-content h3 {
    font-size: 19px;
  }
  .post-content .toc {
    padding: 12px 14px 8px;
  }
  .post-content .toc li,
  .post-content .toc a {
    font-size: 15px;
  }
  .post-content figcaption,
  .post-content figcaption a,
  .post-content figcaption strong {
    font-size: 14px;
  }

  /* Barron's layout puts things side by side in fixed-width table cells; stack them instead. */
  td[style*="width:63%"],
  td[style*="width:37%"],
  td[style*="width:20%"],
  td[style*="width:80%"] {
    display: block !important;
    width: auto !important;
    max-width: none !important;
    box-sizing: border-box;
  }
  /* Home: photo above the bio, smaller and centred. */
  tr:has(> td[style*="width:37%"]) {
    display: flex;
    flex-direction: column-reverse;
  }
  td[style*="width:37%"] {
    padding: 8px 22% 0 !important;
  }
  /* Project rows and Miscellanea: thumbnail or label above the text. */
  td[style*="width:20%"] {
    padding: 14px 16px 4px !important;
    text-align: center;
  }
  td[style*="width:20%"] .one,
  td[style*="width:20%"] img {
    margin: 0 auto;
  }
  td[style*="width:80%"] {
    padding: 4px 16px 12px !important;
  }
  /* Blog list: date on its own line, left aligned. */
  td.post-date {
    text-align: left;
    padding-bottom: 0 !important;
  }
}