/* ------------------------------------------------------------------
   custom.css — loaded AFTER tufte.css.
   Only adds blocks Tufte lacks; every element reuses ET Book / ETBembo
   / Gill Sans so the typography stays identical everywhere.
   ------------------------------------------------------------------ */

/* author's intro note */
.note {
  width: 55%;
  color: #6a6a6a;
  border-left: 2px solid #dcdcd6;
  padding-left: 1.2rem;
  margin: 1.4rem 0;
}
.note p { width: auto; font-style: italic; }

/* deep-dive definition boxes (echo his bordered diagram cards) */
.deepdive {
  width: 55%;
  box-sizing: border-box;
  background: #fff;
  border: 1px solid #e4e4de;
  border-radius: 2px;
  padding: 1rem 1.4rem .3rem;
  margin: 1.9rem 0;
}
.deepdive .callout-label {
  font-family: "Gill Sans", "Gill Sans MT", "Lato", Calibri, sans-serif;
  font-size: .95rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #0099FF;
  display: block;
}
.deepdive .callout-title {
  font-family: "et-book-display-italic", Georgia, serif;
  font-style: italic;
  font-size: 1.6rem;
  margin: .1rem 0 .6rem;
  display: block;
}
.deepdive p, .deepdive li { width: auto; font-size: 1.25rem; line-height: 1.35; }
.deepdive p { margin: .7rem 0; }
.deepdive ul { width: auto; margin: .5rem 0; padding-left: 1.4rem; }
.deepdive li { margin: .2rem 0; }
.deepdive .callout-title { margin-top: .15rem; }
.deepdive .formula {
  display: block;
  font-family: "Gill Sans", "Gill Sans MT", "Lato", Calibri, sans-serif;
  background: #f4f4f2;
  border-radius: 2px;
  padding: .5rem .7rem;
  margin: .3rem 0 1rem;
  overflow-x: auto;
}

/* figures + images (sized by orientation, centered like Notion) */
figure { width: 55%; margin: 2rem 0; text-align: center; }
figure img { display: block; margin: 0 auto; height: auto; border-radius: 2px; }
figure img.portrait { max-width: 240px; }
figure img.med      { max-width: 380px; }
figure img.wide     { max-width: 100%; }
.figph {
  background: #fff; border: 1px solid #e4e4de; min-height: 120px;
  display: flex; align-items: center; justify-content: center; color: #b3b1a9;
  font-family: "Gill Sans", "Gill Sans MT", "Lato", Calibri, sans-serif;
  font-size: .85rem; letter-spacing: .1em; text-transform: uppercase;
}
figcaption {
  font-family: "Gill Sans", "Gill Sans MT", "Lato", Calibri, sans-serif;
  font-size: 1rem; color: #8a8a8a; margin-top: .5rem; text-align: center;
}
/* simple callouts (info / warning notes with an icon) */
.callout-note {
  width: 55%; box-sizing: border-box; display: flex; gap: .7rem; align-items: flex-start;
  margin: 1.3rem 0; padding: .7rem .95rem; border: 1px solid #e4e4de; border-radius: 5px;
  font-size: 1.2rem; line-height: 1.45;
}
.callout-note .cw-icon { flex: 0 0 auto; }
.callout-note .cw-body { min-width: 0; }
.callout-note.cw-red   { background: #fbecec; border-color: #eecccc; }
.callout-note.cw-green { background: #eaf5ec; border-color: #cde5d3; }
.callout-note.cw-blue  { background: #eaf1f8; border-color: #cfe0ef; }
.callout-note.cw-gray  { background: #f4f1ea; }

/* display-math blocks */
.mathblock {
  width: 55%; text-align: center; margin: 1.5rem 0;
  font-size: 1.3rem; letter-spacing: .01em; color: #24292e;
}

/* fenced code blocks — wider than the prose column so code needs less horizontal scroll */
pre {
  width: 90%; box-sizing: border-box; overflow-x: auto;
  background: #f7f6f3; border: 1px solid #e4e4de; border-radius: 3px;
  padding: .8rem 1rem; margin: 1.5rem 0;
}
/* override tufte's body.layout-post pre code {width:52.5%} which was clamping code width */
body.layout-post pre code, pre code {
  width: auto !important; display: block; white-space: pre;
  font-family: Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.95rem; line-height: 1.45; color: #24292e;
  background: none; border: none; padding: 0;
}
/* let highlight.js color tokens but keep our block background/padding */
pre code.hljs { background: transparent; padding: 0; }

/* content tables */
.tablewrap { width: 55%; overflow-x: auto; margin: 1.6rem 0; }
table.ntable { width: 100%; border-collapse: collapse; border: none; text-align: left; margin: 0; }
table.ntable th, table.ntable td {
  border: 1px solid #e4e4de; padding: .5rem .75rem; vertical-align: top; font-size: 1.15rem; line-height: 1.35;
}
table.ntable thead th {
  background: #f4f1ea; border-bottom: 1px solid #d8d3c6;
  font-family: "Gill Sans", "Gill Sans MT", "Lato", Calibri, sans-serif;
  font-weight: 600; font-size: 1rem;
}

/* table of contents */
.toc {
  width: 55%; box-sizing: border-box; margin: 1.4rem 0 2rem;
  padding: .8rem 1.1rem .9rem; background: #f7f6f3; border: 1px solid #e4e4de; border-radius: 3px;
}
.toc .toc-title {
  font-family: "Gill Sans", "Gill Sans MT", "Lato", Calibri, sans-serif;
  font-size: .78rem; letter-spacing: .13em; text-transform: uppercase; color: #0099FF;
  display: block; margin-bottom: .5rem;
}
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li { margin: .18rem 0; line-height: 1.3; }
.toc li.toc-h3 { padding-left: 1.2rem; font-size: 1.05rem; }
.toc a { color: rgb(59,59,59); background: none; border: none; }
.toc a:hover { color: #0099FF; }

/* responsive interactive embeds */
.embed { position: relative; width: 100%; padding-top: 56.25%; }
.embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 1px solid #e4e4de; border-radius: 2px; }

/* video poster — click swaps in an inline player (see site.js) */
.videowrap { position: relative; display: block; border: none; background: none; cursor: pointer; }
.videowrap img { width: 100%; display: block; border: 1px solid #e4e4de; border-radius: 2px; }
.videowrap .pbtn {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 72px; height: 50px; background: rgba(20,20,20,.78); border-radius: 12px;
  display: flex; align-items: center; justify-content: center; transition: background .15s;
}
.videowrap .pbtn::after {
  content: ""; margin-left: 4px;
  border-style: solid; border-width: 10px 0 10px 17px;
  border-color: transparent transparent transparent #fff;
}
.videowrap:hover .pbtn { background: #cc0000; }

/* auto-numbered footnote sidenotes (Tufte / Thinking-Machines style).
   Numbering is scoped to real footnotes (label + input + .sidenote) so plain
   .marginnote asides stay unnumbered. */
html { counter-reset: sidenote-counter; }
.sidenote-number { counter-increment: sidenote-counter; }
.sidenote-number::after {
  content: counter(sidenote-counter);
  font-family: "Gill Sans", "Gill Sans MT", "Lato", Calibri, sans-serif;
  font-size: .8rem; vertical-align: super; line-height: 0; color: #0099FF; margin-left: 1px;
}
input.margin-toggle + .sidenote::before {
  content: counter(sidenote-counter) " ";
  color: #0099FF; font-weight: 600;
}

/* blockquotes — Tufte only sizes blockquote>p; restore reading size for bare quotes */
blockquote { width: 55%; font-size: 1.4rem; line-height: 1.42; margin: 1.6rem 0; }
blockquote p { font-size: inherit; line-height: inherit; margin: 0; width: auto; }
blockquote footer, blockquote cite {
  display: block; font-style: normal; font-size: 1.1rem; color: #8a8a8a; margin-top: .35rem;
}

/* home: headshot — left-aligned block, above the bio */
.headshot {
  display: block;
  width: 150px; height: auto;
  margin: .7rem 0 1.3rem;
  border-radius: 4px;
}

/* link-preview cards (Notion/Medium-style bookmark blocks) */
.linkcard {
  display: flex; align-items: center; gap: .85rem;
  width: 55%; box-sizing: border-box; margin: 1.5rem 0;
  padding: .7rem .9rem; background: #fff; border: 1px solid #e4e4de; border-radius: 6px;
  text-decoration: none;
}
.linkcard:hover { background: #f7f6f3; border-color: #d8d3c6; }
.lc-icon {
  flex: 0 0 40px; width: 40px; height: 40px; border-radius: 6px;
  object-fit: contain; background: #f4f1ea; padding: 4px; box-sizing: border-box;
}
.lc-icon-blank { background: #ece8df; }
.lc-body { display: flex; flex-direction: column; min-width: 0; }
.lc-title {
  display: block; color: rgb(59,59,59); font-size: 1.15rem; line-height: 1.3;
  overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.linkcard:hover .lc-title { color: #0099FF; }
.lc-domain {
  display: block; margin-top: .35rem;
  font-family: "Gill Sans", "Gill Sans MT", "Lato", Calibri, sans-serif;
  font-size: .85rem; color: #a4a29a;
}

/* home: name + writing list */
.namelink { font-size: 1.4rem; }
.writing-h { margin-top: 4rem; margin-bottom: 2rem; }
.postlist { width: 55%; list-style: none; padding-left: 0; margin: 0; }
.postlist li { display: block; width: auto; margin: 0 0 1.35rem; }
.postlist .title {
  display: block; font-size: 1.5rem; line-height: 1.25;
  color: rgb(59,59,59); background: none; border-bottom: none;
}
.postlist .title:hover { color: #0099FF; }
.postlist .date {
  display: block; margin-top: .15rem;
  font-family: "Gill Sans", "Gill Sans MT", "Lato", Calibri, sans-serif;
  font-size: .92rem; letter-spacing: .01em; color: #a4a29a;
}
.more-note { width: 55%; color: #a4a29a; font-style: italic; }
.postdate { font-size: 1.1rem; color: #7a7a7a; margin-top: 0; }

/* h4 (Tufte styles only h1–h3; markdown ### / #### can produce h4) */
body.layout-post h4 {
  font-family: "et-book", Palatino, Georgia, serif; font-style: italic; font-weight: 400;
  font-size: 1.5rem; line-height: 1.2; margin: 1.8rem 0 .4rem;
}
hr { border: none; border-top: 1px solid #e0ded6; width: 55%; margin: 2.2rem 0; }

/* embedded X / Twitter posts */
figure.tweet { width: auto; margin: 1.8rem 0; display: flex; justify-content: center; }
figure.tweet .twitter-tweet { margin: 0 auto !important; }

.navtoggle { display: none; }                        /* hamburger: hidden on desktop, shown on phones */
.navlinks { display: contents; }                     /* wrapper is transparent to layout on desktop */

@media screen and (max-width: 760px) {
  html, body { overflow-x: hidden; }                 /* never scroll sideways on a phone */

  /* full-width blocks instead of the desktop 55%/90% */
  .note, .deepdive, figure, .postlist, .more-note, pre, .mathblock, .tablewrap,
  .toc, .linkcard, .callout-note, hr { width: auto; box-sizing: border-box; }

  /* images must fit the screen (the desktop 380px/240px caps overflowed) */
  figure { margin: 1.5rem 0; }
  figure img, figure img.med, figure img.portrait, figure img.wide { max-width: 100%; height: auto; }

  /* code: full width + a smaller mono size so it fits / scrolls less */
  pre { overflow-x: auto; }
  pre code, pre code.hljs, body.layout-post pre code { font-size: .8rem; }

  /* nav becomes a FIXED hamburger button that stays on screen while scrolling */
  header > nav.group { height: auto; min-height: 2.8rem; }
  .navtoggle {
    display: flex; flex-direction: column; justify-content: center; gap: 5px;
    position: fixed; top: .55rem; right: .55rem; z-index: 200; width: 44px; height: 40px;
    padding: 9px; cursor: pointer; border: 1px solid #e4e4de;
    background: rgba(249,249,249,.92); border-radius: 9px; box-shadow: 0 1px 8px rgba(0,0,0,.12);
  }
  .navtoggle span { display: block; width: 100%; height: 2px; background: #0099FF;
    border-radius: 2px; transition: transform .22s ease, opacity .2s ease; }

  /* links hidden until the button is tapped, then shown as a fixed dropdown panel */
  .navlinks { display: none; }
  header > nav.group.open .navlinks {
    display: block; position: fixed; top: 0; right: 0; z-index: 190;
    background: #f9f9f9; box-shadow: 0 8px 28px rgba(0,0,0,.18);
    padding: 3.6rem 1.7rem 1.3rem; border-bottom-left-radius: 14px; min-width: 56vw; max-width: 82vw;
  }
  .navlinks a { float: none; display: block; margin: 0; padding: .55rem 0; font-size: 1.2rem; white-space: nowrap; }

  /* morph the bars into an X while open */
  header > nav.group.open .navtoggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  header > nav.group.open .navtoggle span:nth-child(2) { opacity: 0; }
  header > nav.group.open .navtoggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}