/* ============================================================
   kelidari.com — hand-written stylesheet
   Type: Fraunces (display) · Newsreader (text) · IBM Plex Mono (meta)
   ============================================================ */

/* ---------- Fonts (self-hosted, latin subsets) ---------- */

@font-face {
  font-family: 'Fraunces';
  src: url('/fonts/fraunces-100-900.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Newsreader';
  src: url('/fonts/newsreader-200-800.woff2') format('woff2');
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Newsreader';
  src: url('/fonts/newsreader-200-800-italic.woff2') format('woff2');
  font-weight: 200 800;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Mono';
  src: url('/fonts/ibm-plex-mono-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Mono';
  src: url('/fonts/ibm-plex-mono-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* ---------- Tokens ---------- */

:root {
  --paper: #F7F3EB;
  --paper-deep: #F0EADD;
  --plate: #FDFCF8;
  --ink: #211C15;
  --ink-soft: #4A443A;
  --muted: #71675A;
  --line: #DCD3C2;
  --accent: #2D5A47;
  --accent-strong: #234938;

  --serif-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --serif-text: 'Newsreader', Georgia, 'Times New Roman', serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --measure: 62ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #17130E;
    --paper-deep: #1E1913;
    --plate: #F9F6EF;
    --ink: #ECE5D8;
    --ink-soft: #C9C0B0;
    --muted: #9A9080;
    --line: #352C20;
    --accent: #8FBCA4;
    --accent-strong: #A9CDB9;
  }
}

/* ---------- Reset-ish ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  background: var(--paper);
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif-text);
  font-size: 1.125rem;
  line-height: 1.65;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }

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

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 1px;
}

h1, h2, h3 {
  font-family: var(--serif-display);
  font-optical-sizing: auto;
  font-weight: 540;
  line-height: 1.08;
  letter-spacing: -0.012em;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

.wrap {
  max-width: 71rem;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.skip {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 1rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  z-index: 10;
}
.skip:focus { left: 0.5rem; }

/* ---------- Small utilities ---------- */

.kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.meta {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.prose { max-width: var(--measure); color: var(--ink-soft); }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 150ms ease;
}
.prose a:hover { color: var(--accent); }

/* Editorial drop cap on the opening paragraph */
.lede::first-letter {
  font-family: var(--serif-display);
  font-weight: 560;
  font-size: 3.4em;
  line-height: 0.82;
  float: left;
  padding: 0.06em 0.12em 0 0;
  color: var(--ink);
}

/* ---------- Masthead ---------- */

.masthead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  padding-block: 1.3rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-family: var(--serif-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.brand .dot { color: var(--accent); }

.masthead nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.masthead nav a {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  padding-block: 0.55rem;
  transition: color 150ms ease;
}
.masthead nav a:hover,
.masthead nav a[aria-current="page"] { color: var(--ink); }

/* ---------- Hero ---------- */

.hero {
  padding-block: clamp(3.5rem, 9vw, 6.5rem) clamp(3.5rem, 8vw, 6rem);
  display: grid;
  gap: 3rem;
}
@media (min-width: 920px) {
  .hero { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); align-items: center; }
}

.hero h1 {
  font-size: clamp(2.9rem, 8.5vw, 5.6rem);
  font-weight: 560;
  line-height: 1.0;
  margin: 0.9rem 0 1.4rem;
}

.hero .deck {
  font-size: clamp(1.15rem, 2.2vw, 1.36rem);
  line-height: 1.55;
  max-width: 34em;
  color: var(--ink-soft);
}
.hero .deck a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.hero .deck a:hover { color: var(--accent); }

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.8rem;
  margin-top: 2.1rem;
  padding: 0;
  list-style: none;
}
.hero-links a {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  display: inline-block;
  padding-top: 0.4rem;
  padding-bottom: 3px;
  transition: border-color 150ms ease, color 150ms ease;
}
.hero-links a:hover { border-color: var(--accent); color: var(--accent); }
.hero-links .arrow { color: var(--accent); }

.portrait { justify-self: center; width: min(21rem, 100%); }
@media (min-width: 920px) { .portrait { justify-self: end; } }
.portrait .mount {
  background: var(--plate);
  border: 1px solid var(--line);
  padding: 0.7rem;
}
.portrait img { display: block; width: 100%; }
.portrait .meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.6rem;
}

/* ---------- Sections with left rail ---------- */

.block {
  border-top: 1px solid var(--line);
  padding-block: clamp(3rem, 7vw, 5rem) clamp(3.5rem, 8vw, 5.5rem);
  display: grid;
  gap: 2rem;
}
@media (min-width: 920px) {
  .block { grid-template-columns: 14rem minmax(0, 1fr); gap: 3rem; }
  .block > .rail { position: sticky; top: 2.5rem; align-self: start; }
}

.rail .kicker { display: block; }
.rail .kicker .no { color: var(--accent); margin-right: 0.6em; }
.rail h2.kicker { font-size: 0.72rem; margin: 0; line-height: 1.6; }

section[id] { scroll-margin-top: 1.5rem; }

.block h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.15rem);
  margin-bottom: 1.6rem;
}

/* Tech list line */
.stack-line {
  margin-top: 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 2.1;
  color: var(--muted);
  max-width: 56ch;
}
.stack-line .sep { color: var(--accent); padding-inline: 0.15em; }

/* ---------- Experience ---------- */

.role {
  position: relative;
  padding-block: 2rem 2.3rem;
  padding-left: 4.4rem;
  border-top: 1px solid var(--line);
}
.role:first-of-type { padding-top: 0; border-top: 0; }

/* Institution pressmarks */
.org-mark {
  position: absolute;
  left: 0;
  top: 2.1rem;
  width: 3.1rem;
  height: 3.1rem;
  background: var(--plate);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  padding: 0.42rem;
}
.role:first-of-type .org-mark { top: 0.1rem; }
.org-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0.88;
}
@media (max-width: 540px) {
  .role { padding-left: 3.45rem; }
  .org-mark { width: 2.55rem; height: 2.55rem; padding: 0.34rem; }
}

.role-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem 2rem;
}
.role h3 { font-size: 1.32rem; font-weight: 560; }
.role .where {
  font-size: 1.02rem;
  color: var(--muted);
  font-style: italic;
  margin-top: 0.35rem;
  max-width: var(--measure);
}
.role .where a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.role .where a:hover { color: var(--accent); text-decoration-color: var(--accent); }
.role .when { white-space: nowrap; }

.points {
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
  max-width: var(--measure);
}
.points li {
  position: relative;
  padding-left: 1.5rem;
  margin-top: 0.65rem;
  color: var(--ink-soft);
}
.points li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--accent);
}
.points li strong { color: var(--ink); font-weight: 600; }

.role.aside-role .where,
.role.aside-role h3 { font-size: 1.05rem; }
.role.aside-role h3 { font-weight: 520; }
.role.aside-role .note {
  color: var(--muted);
  font-size: 1rem;
  margin-top: 0.5rem;
  max-width: var(--measure);
}

/* Education entries reuse .role */
.role .gpa { color: var(--ink); }

/* ---------- Selected work ---------- */

.project {
  display: grid;
  gap: 1.8rem;
  padding-block: 2.6rem;
  border-top: 1px solid var(--line);
  align-items: center;
}
.project:first-of-type { padding-top: 0; border-top: 0; }
@media (min-width: 860px) {
  .project { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 2.8rem; }
  .project.flip .plate { order: 2; }
}

figure.plate {
  margin: 0;
  background: var(--plate);
  border: 1px solid var(--line);
  padding: clamp(0.7rem, 1.6vw, 1rem);
}
figure.plate a { display: block; }
figure.plate img { display: block; width: 100%; }
figure.plate figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.65rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}
figure.plate figcaption span:first-child { white-space: nowrap; }
figure.plate figcaption span:last-child { text-align: right; }

.project h3 { font-size: 1.45rem; font-weight: 560; }
.project h3 .device {
  display: inline-flex;
  width: 1.3rem;
  height: 1.3rem;
  color: var(--accent);
  margin-right: 0.55rem;
  vertical-align: -0.18em;
}
.device svg { width: 100%; height: 100%; }
.project .year { margin-left: 0.75em; }
.project .prose { margin-top: 0.9rem; font-size: 1.06rem; }
.project .tools { margin-top: 0.9rem; display: block; }

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.6rem;
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
}
.project-links a {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  display: inline-block;
  padding-top: 0.35rem;
  padding-bottom: 2px;
  transition: border-color 150ms ease, color 150ms ease;
}
.project-links a:hover { border-color: var(--accent); color: var(--accent); }
.project-links .arrow { color: var(--accent); }

.work-outro {
  border-top: 1px solid var(--line);
  padding-top: 1.8rem;
  color: var(--ink-soft);
  max-width: var(--measure);
}

/* ---------- Contact ---------- */

.email-line {
  display: inline-block;
  font-family: var(--serif-display);
  font-size: clamp(1.5rem, 4.5vw, 2.4rem);
  font-weight: 540;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 7px;
  margin-block: 1.2rem 1.8rem;
  overflow-wrap: anywhere;
  transition: color 150ms ease;
}
.email-line:hover { color: var(--accent); }

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.contact-links a {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  display: inline-block;
  padding-top: 0.4rem;
  padding-bottom: 3px;
  transition: border-color 150ms ease, color 150ms ease;
}
.contact-links a:hover { border-color: var(--accent); color: var(--accent); }
.contact-links .arrow { color: var(--accent); }

/* ---------- Footer ---------- */

footer.colophon {
  border-top: 1px solid var(--line);
  padding-block: 2.2rem 2.8rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem 2.5rem;
}
footer.colophon p { margin: 0; }
footer.colophon .meta { max-width: 44ch; line-height: 1.8; }
footer.colophon a { color: var(--muted); text-underline-offset: 3px; }
footer.colophon a:hover { color: var(--ink); }

/* ---------- Project index page ---------- */

.index-head { padding-block: clamp(3rem, 8vw, 5.5rem) clamp(2.5rem, 6vw, 4rem); }
.index-head h1 { font-size: clamp(2.4rem, 6.5vw, 4rem); margin: 0.9rem 0 1.2rem; }
.index-head .prose { font-size: 1.15rem; }

.cat { border-top: 1px solid var(--line); padding-block: 2.6rem 3rem; }
.cat h2 {
  font-size: 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin-bottom: 0.4rem;
}
.cat h2 .no {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.cat .cat-desc { color: var(--muted); font-style: italic; max-width: var(--measure); margin-bottom: 0.6rem; }

.entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.2rem 2rem;
  padding-block: 1.15rem;
  border-top: 1px solid color-mix(in srgb, var(--line) 55%, transparent);
}
.entry:first-of-type { border-top: 0; }
.entry h3 { font-size: 1.12rem; font-weight: 540; }
.entry h3 a {
  text-decoration: none;
  transition: color 150ms ease;
}
.entry h3 a:hover { color: var(--accent); }
.entry h3 .arrow { color: var(--accent); font-size: 0.85em; }
.entry .desc { grid-column: 1 / -1; color: var(--ink-soft); font-size: 1rem; max-width: var(--measure); margin-top: 0.15rem; }
.entry .tools { grid-column: 1 / -1; margin-top: 0.3rem; }
.entry .links { display: inline; }
.entry .links a {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
}
.entry .links a:hover { color: var(--accent); }

/* ---------- Reveal on scroll (JS-gated) ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.js .reveal.on { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Print ---------- */

@media print {
  .masthead nav, .skip { display: none; }
  body { background: #fff; color: #000; }
}