/* ------------------------------------------------------------------
   Cristian Inzunza: site styles
   Palette: slate ink on a cool paper, a deep-teal accent, and an ochre
   counterpoint taken from the field colouring of the mesh figures.
   ------------------------------------------------------------------ */
:root {
  --paper: #131C23;
  --paper-2: #1A252D;
  --ink: #E1E8EA;
  --muted: #9BABB1;
  --rule: #2B3A43;
  --accent: #8CC2D6;
  --ochre: #D8AE60;
  --mesh-line: #131C23;
  --b0: #8C6A2A; --b1: #6B5C3C; --b2: #384447; --b3: #2D474C;
  --b4: #2E5862; --b5: #3D7384; --b6: #5C95A8;
  --s0: #1E2B33; --s1: #23363F; --s2: #2A4550; --s3: #315A66;
  --s4: #3B7182; --s5: #5290A3; --s6: #86BED0;

  --serif: "STIX Two Text", "STIX Two", "Times New Roman", serif;
  --sans: "Schibsted Grotesk", "Helvetica Neue", Arial, sans-serif;
  --wrap: 72rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --measure: 40rem;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --paper: #F6F8F7;
  --paper-2: #EDF1EF;
  --ink: #1D2B34;
  --muted: #56666E;
  --rule: #D3DBD8;
  --accent: #2C5B76;
  --ochre: #9A6B1F;
  --mesh-line: #F6F8F7;
  /* field bands, ochre (low) to deep teal (high) */
  --b0: #E2BE72; --b1: #EAD7A6; --b2: #E6E5D7; --b3: #C5D9D3;
  --b4: #92B7B4; --b5: #5E8C99; --b6: #33607A;
  /* sequential bands for magnitudes and densities */
  --s0: #E9EEEA; --s1: #D2E0DB; --s2: #B2CDC8; --s3: #8DB4B4;
  --s4: #6A9BA6; --s5: #44788F; --s6: #24506A;

  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.62;
  font-variant-numeric: oldstyle-nums proportional-nums;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { font-weight: 500; line-height: 1.15; margin: 0; letter-spacing: -0.005em; }
p { margin: 0 0 1rem; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--paper); padding: .5rem 1rem; z-index: 10; }
.skip:focus { left: 0; }

/* ---------- header ---------- */
.site-header { border-bottom: 1px solid var(--rule); font-family: var(--sans); }
.header-row { display: flex; align-items: center; gap: 1.5rem; min-height: 4rem; }
.brand { font-family: var(--serif); font-size: 1.2rem; color: var(--ink); text-decoration: none; white-space: nowrap; }
.site-nav { margin-left: auto; }
.site-nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; margin: 0; padding: 0; }
.site-nav a, .lang-switch { color: var(--muted); text-decoration: none; font-size: .9rem; padding: .3rem 0; }
.site-nav a:hover, .lang-switch:hover { color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--ochre); }
.lang-switch { border-left: 1px solid var(--rule); padding-left: 1.25rem; white-space: nowrap; }
.header-tools { display: flex; align-items: center; gap: 1.25rem; }

@media (max-width: 860px) {
  .header-row { flex-wrap: wrap; gap: .25rem 1rem; padding-block: .75rem; }
  .site-nav { order: 3; width: 100%; margin-left: 0; }
  .site-nav ul { gap: .1rem 1rem; }
  .site-nav li { white-space: nowrap; }
  .lang-switch { border-left: 0; padding-left: 0; }
  .header-tools { margin-left: auto; gap: 1rem; }
}

/* ---------- mesh figures ---------- */
.mesh path { stroke: var(--mesh-line); stroke-width: .8; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.mesh .b0 { fill: var(--b0); } .mesh .b1 { fill: var(--b1); } .mesh .b2 { fill: var(--b2); }
.mesh .b3 { fill: var(--b3); } .mesh .b4 { fill: var(--b4); } .mesh .b5 { fill: var(--b5); }
.mesh .b6 { fill: var(--b6); }
.mesh .s0 { fill: var(--s0); } .mesh .s1 { fill: var(--s1); } .mesh .s2 { fill: var(--s2); }
.mesh .s3 { fill: var(--s3); } .mesh .s4 { fill: var(--s4); } .mesh .s5 { fill: var(--s5); }
.mesh .s6 { fill: var(--s6); }
.mesh .outline, .mesh .contour { fill: none; stroke: var(--ink); stroke-width: 1; stroke-dasharray: 4 3; opacity: .55; }
.mesh .contour { stroke-dasharray: none; opacity: .4; }
.thumb path { stroke-width: .45; }
.hero-mesh path { stroke-width: .35; }

/* ---------- hero ---------- */
.hero { position: relative; }
.hero-figure { margin: 0; }
.hero-figure .mesh { width: 100%; height: clamp(15rem, 34vw, 27rem); }
.fig-num { color: var(--ink); font-weight: 500; }
.hero-text { position: relative; margin-top: calc(-1 * (clamp(2.7rem, 7.2vw, 5.4rem) + 1.2rem)); pointer-events: none; }
.hero-text > * { pointer-events: auto; }
.hero h1 {
  display: inline-block; background: var(--paper);
  padding: .9rem 2rem .3rem 0; margin-left: calc(-1 * var(--gutter)); padding-left: var(--gutter);
  font-size: clamp(2.7rem, 7.2vw, 5.4rem); font-weight: 400; letter-spacing: -0.02em; line-height: 1;
}
.lede { font-size: 1.3rem; line-height: 1.45; max-width: 34rem; color: var(--ink); margin: 1.25rem 0 0; }

.lvl1, .lvl2 { opacity: 0; animation: refine .7s ease-out forwards; }
.lvl1 { animation-delay: .6s; }
.lvl2 { animation-delay: 1.5s; }
@keyframes refine { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .lvl0, .lvl1 { display: none; }
  .lvl2 { opacity: 1; animation: none; }
}

@media (max-width: 700px) {
  .hero-text { margin-top: 0; }
  .hero h1 { padding: 1.25rem 0 0; margin-left: 0; padding-left: 0; background: none; }
}

.research-line figcaption { font-family: var(--sans); font-size: .82rem; color: var(--muted); line-height: 1.45; margin-top: .7rem; max-width: 46rem; }

/* ---------- home ---------- */
.home-grid { display: grid; gap: 4.5rem; padding-block: 3.5rem 5rem; }
.home-grid h2, .page h2 { font-size: 1.65rem; margin-bottom: 1.25rem; }
.about { display: grid; grid-template-columns: 15rem minmax(0, var(--measure)); gap: 2.5rem; align-items: start; }
.portrait { width: 15rem; height: 15rem; object-fit: cover; border-radius: 50%; }
.prose { max-width: var(--measure); }
.prose p { hyphens: auto; }
.more { font-family: var(--sans); font-size: .9rem; margin-top: 1.25rem; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
@media (max-width: 700px) {
  .about { grid-template-columns: 1fr; gap: 1.5rem; }
  .portrait { width: 9rem; height: 9rem; }
}

/* research rows */
.lines { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.lines li { border-bottom: 1px solid var(--rule); }
.line { display: grid; grid-template-columns: 12rem 1fr; gap: 1.5rem; align-items: center; padding-block: 1rem; text-decoration: none; color: var(--ink); }
.line-fig svg, .line-fig img { width: 12rem; height: 6.5rem; object-fit: contain; }
.line-title { display: block; font-size: 1.25rem; margin-bottom: .15rem; }
.line-short { display: block; color: var(--muted); font-size: 1rem; line-height: 1.45; max-width: 36rem; }
.line:hover .line-title { color: var(--accent); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .18em; }
@media (max-width: 560px) {
  .line { grid-template-columns: 7rem 1fr; gap: 1rem; }
  .line-fig svg, .line-fig img { width: 7rem; height: 4.5rem; }
}

/* ---------- dated lists: news, talks ---------- */
.news, .dated { list-style: none; margin: 0; padding: 0; }
.news li, .dated li { display: grid; grid-template-columns: 6rem 1fr; gap: 1rem; padding-block: .7rem; border-top: 1px solid var(--rule); }
.news p, .dated p { margin: 0; }
.news a { color: var(--ink); text-decoration-color: var(--rule); }
.news a:hover { color: var(--accent); text-decoration-color: currentColor; }
.news-date { font-family: var(--sans); font-size: .85rem; color: var(--muted); padding-top: .2rem; font-variant-numeric: lining-nums tabular-nums; }
.dated .pub-venue { margin-top: .2rem; }

/* ---------- publications ---------- */
.pubs { list-style: none; margin: 0; padding: 0; }
.pub { display: grid; grid-template-columns: 4.5rem 1fr; gap: 1rem; padding-block: 1rem; border-top: 1px solid var(--rule); }
.pub[hidden] { display: none; }
.pub-year { font-family: var(--sans); font-size: .85rem; color: var(--muted); padding-top: .2rem; font-variant-numeric: lining-nums tabular-nums; }
.pub-body p { margin: 0; }
.pub-title { font-weight: 500; font-size: 1.08rem; line-height: 1.35; }
.pub-authors { color: var(--muted); font-size: 1rem; margin-top: .2rem !important; }
.me { color: var(--ink); font-weight: 600; }
.pub-venue { font-size: 1rem; color: var(--muted); }
.pub-links { font-family: var(--sans); font-size: .85rem; margin-top: .35rem !important; display: flex; flex-wrap: wrap; gap: .25rem 1.1rem; }
.compact .pub { grid-template-columns: 3.5rem 1fr; padding-block: .8rem; }
.compact .pub-title { font-size: 1rem; }
.compact .pub-authors, .compact .pub-venue { font-size: .95rem; }
.count { font-family: var(--sans); font-size: .9rem; color: var(--muted); font-weight: 400; margin-left: .4rem; vertical-align: .2em; }

.filter { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; font-family: var(--sans); font-size: .88rem; margin: 0 0 3rem; }
.filter-label { color: var(--muted); margin-right: .25rem; }
.filter button {
  font: inherit; color: var(--ink); background: transparent; cursor: pointer;
  border: 1px solid var(--rule); border-radius: 2rem; padding: .3rem .85rem;
}
.filter button:hover { border-color: var(--muted); }
.filter button[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* ---------- inner pages ---------- */
.page { padding-block: 3rem 5rem; }
.page > section + section { margin-top: 3.5rem; }
.page-head { margin-bottom: 3rem; max-width: 46rem; }
.page-head h1 { font-size: clamp(2.3rem, 5vw, 3.4rem); font-weight: 400; letter-spacing: -0.015em; }
.page-head .lede { margin-top: 1rem; }
.page h3 { font-family: var(--sans); font-size: .95rem; font-weight: 500; color: var(--muted); margin: 1.75rem 0 .25rem; }

.research-line { display: grid; grid-template-columns: minmax(0, 22rem) minmax(0, var(--measure)); gap: 3rem; padding-top: 3rem; border-top: 1px solid var(--rule); scroll-margin-top: 1rem; }
.page > .research-line + .research-line { margin-top: 3rem; }
.research-line figure { margin: 0; }
.research-line figure svg, .research-line figure img { width: 100%; height: auto; }
.teach-role { font-family: var(--sans); font-size: .82rem; color: var(--muted); margin-top: .6rem; line-height: 1.45; }
@media (max-width: 820px) { .research-line { grid-template-columns: 1fr; gap: 1.5rem; } .research-line figure { max-width: 22rem; } }

.plate { margin: 1.75rem 0 .5rem; }
.plate img { width: 100%; height: auto; }
.plate.narrow img { max-width: 26rem; }
.plate figcaption { font-family: var(--sans); font-size: .82rem; color: var(--muted); line-height: 1.45; margin-top: .6rem; }
.plate figcaption em { font-style: italic; }

.teach { display: grid; grid-template-columns: 6rem 1fr; gap: 1rem; border-top: 1px solid var(--rule); padding-top: 1.25rem; }
.page > .teach + .teach { margin-top: 2rem; }
.teach h2 { font-size: 1.35rem; margin-bottom: .2rem; }
.teach-role { font-size: .9rem; margin: 0 0 .75rem; }
.courses { margin: 0; padding-left: 1.1rem; }
.courses li { margin-bottom: .2rem; }

.facts { display: grid; grid-template-columns: max-content 1fr; gap: .6rem 2rem; margin: 0 0 3.5rem; padding: 1.5rem 0; border-block: 1px solid var(--rule); max-width: 46rem; }
.facts dt { font-family: var(--sans); font-size: .88rem; color: var(--muted); padding-top: .15rem; }
.facts dd { margin: 0; }
@media (max-width: 560px) { .facts { grid-template-columns: 1fr; gap: 0; } .facts dd { margin-bottom: .75rem; } }
.prose ul { padding-left: 1.2rem; }
.prose li { margin-bottom: .4rem; }
.ack { margin: 0; padding: 1rem 1.25rem; background: var(--paper-2); border-left: 3px solid var(--ochre); font-size: 1rem; }

@media (max-width: 560px) {
  .pub, .news li, .dated li, .teach { grid-template-columns: 1fr; gap: .15rem; }
  .compact .pub { grid-template-columns: 1fr; }
}

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--rule); background: var(--paper-2); font-family: var(--sans); font-size: .9rem; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; padding-block: 2.5rem; }
.footer-grid p { margin: 0 0 .4rem; }
.footer-name { color: var(--ink); font-family: var(--serif); font-size: 1.05rem; }
.footer-label { color: var(--ink); }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: .3rem; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 1.25rem; } }

/* theme switch */
.theme-switch { font: inherit; font-family: var(--sans); font-size: .9rem; color: var(--muted); background: none; border: 0; padding: .3rem 0; cursor: pointer; white-space: nowrap; }
.theme-switch:hover { color: var(--ink); }
:root[data-theme="light"] .only-dark, :root:not([data-theme="light"]) .only-light { display: none; }

@media print {
  .site-header nav, .header-tools, .filter, .hero-figure { display: none; }
  body { background: #fff; color: #000; }
}

/* recreated paper figures */
.plate-svg { width: 100%; height: auto; }
.plate-svg path { stroke-width: .3; }
.plate-svg.grid path { stroke: none; shape-rendering: crispEdges; }
.mesh .panel-label { font-family: var(--serif); font-size: 15px; fill: var(--muted); }