/* Akshay Iyer personal site. Editorial ink-on-paper, matches polymathsociety.us */

:root {
  --paper: #fbfaf7;
  --ink: #141414;
  --meta: #6b6b6b;
  --rule: #e3e0d8;
  --code-bg: #141414;
  --code-ink: #fbfaf7;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: "Newsreader", "Iowan Old Style", "Palatino", Georgia, serif;
  font-size: 19px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 22px;
}

/* ---------- nav ---------- */

nav.site-nav {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 30px 0 0;
  flex-wrap: wrap;
  gap: 8px 20px;
}

nav.site-nav .brand {
  font-weight: 600;
  font-size: 19px;
  text-decoration: none;
  color: var(--ink);
}

nav.site-nav .links {
  display: flex;
  gap: 12px 22px;
  flex-wrap: wrap;
}

nav.site-nav .links a {
  color: var(--ink);
  text-decoration: none;
  font-size: 17px;
}

nav.site-nav .links a:hover,
nav.site-nav .links a.active {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- type ---------- */

h1 {
  font-size: clamp(30px, 4.5vw, 38px);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 0 0 18px;
}

h2 {
  font-size: 27px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 0 0 14px;
}

h3 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 8px;
}

p { margin: 0 0 16px; }

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: #b3ae9f;
  text-underline-offset: 3px;
}

a:hover { text-decoration-color: var(--ink); }

.kicker {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 14px;
}

/* In a hero the kicker is an eyebrow above the title, not a section heading. */
header.hero .kicker {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--meta);
  margin: 0 0 12px;
}

.meta {
  color: var(--meta);
  font-size: 16px;
}

hr.rule {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 56px 0;
}

section.block { margin: 64px 0; }

header.hero { margin: 72px 0 0; }

.lede { font-size: 22px; line-height: 1.55; }

/* ---------- lists ---------- */

ul.plain {
  list-style: disc;
  padding-left: 24px;
}

ul.plain li {
  padding: 4px 0;
}

ol.numbered { padding-left: 22px; }
ol.numbered li { margin-bottom: 12px; }

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  border-radius: 999px;
  padding: 11px 24px;
  font-size: 17px;
  font-weight: 500;
}

.btn:hover { background: #000; }

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
}

.btn-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin: 20px 0; }

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

.codeblock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 22px 0;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 16px;
}

.codeblock button {
  background: transparent;
  color: var(--code-ink);
  border: 1px solid #555;
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
}

.codeblock button:hover { border-color: var(--code-ink); }

/* ---------- portrait ---------- */

img.portrait {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin-bottom: 26px;
}

/* ---------- project entries ---------- */

.entry {
  padding: 26px 0;
  border-top: 1px solid var(--rule);
}

.entry:last-child { border-bottom: 1px solid var(--rule); }

.entry .head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.entry .head .year {
  color: var(--meta);
  font-size: 16px;
  white-space: nowrap;
}

.entry p { margin: 8px 0 0; }

.entry .links { margin-top: 8px; font-size: 17px; }
.entry .links a { margin-right: 18px; }

.stat {
  font-weight: 600;
}

/* ---------- thoughts / takes ---------- */

details.take {
  border-top: 1px solid var(--rule);
}

details.take:last-of-type { border-bottom: 1px solid var(--rule); }

details.take summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 18px 0;
  font-size: 21px;
  font-weight: 600;
  line-height: 1.35;
}

details.take summary::-webkit-details-marker { display: none; }

details.take summary::after {
  content: "+";
  font-weight: 400;
  font-size: 26px;
  color: var(--meta);
  flex-shrink: 0;
}

details.take[open] summary::after { content: "\2212"; }

details.take .body { padding: 0 0 22px; }

details.take .body p:last-child { margin-bottom: 0; }

.essay-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--rule);
}

.essay-item:last-of-type { border-bottom: 1px solid var(--rule); }

.essay-item a { font-size: 20px; font-weight: 500; }

.essay-item .date { color: var(--meta); font-size: 16px; white-space: nowrap; }

/* ---------- video ---------- */

video.demo, iframe.demo {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--rule);
  display: block;
  margin: 22px 0;
  background: #000;
}

iframe.embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--rule);
  border-radius: 12px;
  display: block;
  margin: 18px 0 6px;
  background: #000;
}

.video-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 18px 0 6px;
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 28px;
  row-gap: 0;
  margin-top: 10px;
}

/* Title, description and media sit on shared row tracks so every card in a
   row starts its embed at the same height. Links live inside .media so they
   follow the embed itself rather than the tallest embed in the row. */
.project-cell {
  display: grid;
  grid-template-rows: subgrid;
  grid-row: span 3;
  align-content: start;
  padding-bottom: 52px;
}

.project-cell h3 { margin: 0 0 8px; }

.project-cell p { font-size: 17px; margin: 0 0 14px; }

.project-cell .media iframe.embed,
.project-cell .media video { margin: 0 0 10px; }

.project-cell .media .tweet-embed { margin: 0 0 10px; }

/* Twitter's widget injects its own 10px top margin, which knocks the tweet
   out of line with the YouTube embed beside it. */
.project-cell .media .twitter-tweet,
.project-cell .media .twitter-tweet-rendered { margin-top: 0 !important; }

.project-cell .media .links { font-size: 16px; margin-top: 6px; }
.project-cell .media .links a { margin-right: 14px; }

@supports not (grid-template-rows: subgrid) {
  .project-cell { display: block; }
}

@media (max-width: 640px) {
  .project-grid { grid-template-columns: 1fr; }
  .project-cell { display: block; padding-bottom: 40px; }
}

.video-grid iframe.embed { margin: 0; }

.tweet-embed { margin: 18px 0 6px; }

@media (max-width: 560px) {
  .video-grid { grid-template-columns: 1fr; }
}

/* ---------- experience cards ---------- */

.xp {
  padding: 28px 0;
  border-top: 1px solid var(--rule);
}

.xp:last-child { border-bottom: 1px solid var(--rule); }

.xp .xp-head {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 10px;
}

.xp .xp-head img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--rule);
  padding: 4px;
}

.xp .sub {
  color: var(--meta);
  font-size: 16px;
}

.xp ul {
  padding-left: 22px;
  margin: 10px 0 0;
}

.xp ul li { margin-bottom: 8px; }

.coursework { font-style: italic; }

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag {
  border: 1px solid var(--rule);
  background: #f2efe7;
  padding: 2px 12px;
  border-radius: 999px;
  font-size: 14px;
}

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

.post { margin: 56px 0 0; }

.post h1 {
  font-size: clamp(32px, 5.5vw, 44px);
  margin-bottom: 28px;
}

.post h2 {
  font-size: 26px;
  margin: 44px 0 12px;
}

.post h3 { margin: 32px 0 8px; }

.post p, .post li { font-size: 19px; }

.post ul, .post ol { padding-left: 24px; margin: 0 0 16px; }

.post li { margin-bottom: 10px; }

.post hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 40px 0;
}

.post blockquote {
  border-left: 2px solid var(--rule);
  padding-left: 18px;
  margin: 0 0 16px;
  color: var(--meta);
}

.post img { max-width: 100%; border-radius: 10px; }

.post code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.9em;
  background: #f2efe7;
  padding: 1px 5px;
  border-radius: 4px;
}

.back-link { font-size: 17px; margin-bottom: 20px; }

.acknowledgements {
  color: var(--meta);
  font-size: 17px;
  font-style: italic;
  margin-top: 40px;
}

/* ---------- footer ---------- */

footer.site-footer {
  margin: 90px 0 48px;
  padding-top: 26px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-size: 16px;
  color: var(--meta);
}

footer.site-footer .social a {
  margin-right: 18px;
  color: var(--ink);
}

@media (max-width: 560px) {
  body { font-size: 18px; }
  header.hero { margin-top: 48px; }
  .entry .head, .essay-item { flex-direction: column; gap: 2px; }
}