/* ============================================================
   NERON SIFFLORE — Academic Site
   Editorial design language inspired by data-journalism layouts
   Cream paper, sienna accents, Fraunces serif
   ============================================================ */

:root {
  --ink: #0E1116;
  --ink-2: #2A2F38;
  --ink-3: #5A6068;
  --paper: #F4EFE6;
  --paper-2: #EBE3D5;
  --paper-3: #DDD3C0;
  --rule: #1A1F28;
  --navy: #0E2A47;
  --navy-2: #1F3864;
  --accent: #B8470F;
  --accent-2: #D97334;
  --moss: #3D5A3F;
  --gold: #A47E3B;
  --grid: rgba(14, 17, 22, 0.08);
  --grid-light: rgba(14, 17, 22, 0.04);
  --shadow: 0 1px 0 rgba(14, 17, 22, 0.06), 0 8px 24px -12px rgba(14, 17, 22, 0.18);
}

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

html, body {
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: "Inter Tight", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background-image:
    radial-gradient(circle at 12% 8%, rgba(180,71,15,0.04) 0%, transparent 35%),
    radial-gradient(circle at 88% 92%, rgba(14,42,71,0.05) 0%, transparent 40%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.045 0'/></filter><rect width='120' height='120' filter='url(%23n)'/></svg>");
  min-height: 100vh;
}

.display, h1, h2, h3, h4 { font-family: "Fraunces", Georgia, serif; font-optical-sizing: auto; letter-spacing: -0.01em; }
.mono { font-family: "JetBrains Mono", "Courier New", monospace; font-feature-settings: "tnum"; }

a { color: var(--ink); text-decoration: none; transition: color 0.16s ease, border-color 0.16s ease; }
a:hover { color: var(--accent); }

p { margin-bottom: 1em; }
em { color: var(--accent); font-style: italic; font-family: "Fraunces", serif; }
strong { font-weight: 600; color: var(--ink); }

/* ============== LAYOUT ============== */
.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 56px 56px 96px;
}

/* ============== MASTHEAD ============== */
.mast {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: end;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 8px;
}

.mast .crest {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding: 6px 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.mast h1 {
  font-family: "Fraunces", serif;
  font-weight: 700;
  font-size: 48px;
  line-height: 0.95;
  letter-spacing: -0.025em;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
}

.mast h1 em { font-style: italic; color: var(--accent); font-weight: 600; }

.mast .meta {
  text-align: right;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  line-height: 1.6;
}

.mast .meta b { color: var(--ink); font-weight: 600; }

/* ============== NAV ============== */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0 32px;
  border-bottom: 1px solid var(--grid);
  margin-bottom: 48px;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  font-family: "Inter Tight", sans-serif;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-2);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.nav-right {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.nav-right a { color: var(--ink-2); }
.nav-right a:hover { color: var(--accent); }

/* ============== SECTION LABELS ============== */
.sec-label {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 56px 0 24px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink);
}

.sec-label .num {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-weight: 500;
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.sec-label h2 {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.sec-label .hint {
  margin-left: auto;
  font-size: 11px;
  color: var(--ink-2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

/* Plain headings (when not using section label) */
h2.plain {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.005em;
  margin: 40px 0 16px;
}

h3 {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 18px;
  margin: 24px 0 12px;
  color: var(--ink);
}

/* ============== HOMEPAGE INTRO ============== */
.intro {
  margin-top: 32px;
  padding-top: 32px;
}

.intro .lede {
  font-family: "Fraunces", serif;
  font-weight: 400;
  font-size: 26px;
  line-height: 1.4;
  color: var(--ink);
  letter-spacing: -0.01em;
  max-width: 700px;
  margin-bottom: 32px;
}

.intro .lede em { font-style: italic; color: var(--accent); }

.intro p {
  font-size: 16px;
  line-height: 1.7;
  max-width: 640px;
  color: var(--ink-2);
  margin-bottom: 14px;
}

.intro p strong { color: var(--ink); }

/* ============== FEATURED FIGURES (homepage) ============== */
.figures {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 48px 0;
}

.figures.single {
  grid-template-columns: 1fr;
}

.figure-card.wide .chart-wrap {
  height: 360px;
}

/* ============== CHART QUESTION HEADER ============== */
.chart-question {
  margin: 56px 0 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--ink);
}

.chart-question .kicker {
  display: block;
  font-family: "Inter Tight", sans-serif;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 12px;
}

.chart-question h2 {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 38px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
  max-width: 760px;
}

.chart-question h2 em {
  font-style: italic;
  color: var(--accent);
  font-weight: 600;
}

.chart-question .subline {
  display: block;
  margin-top: 10px;
  font-family: "Fraunces", serif;
  font-style: italic;
  font-weight: 400;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--ink-3);
}

.chart-question .subline::before {
  content: "↳ ";
  color: var(--accent);
  font-style: normal;
}

/* Tighten figure margin since the question already has space below */
.chart-question + .figures {
  margin-top: 0;
}

@media (max-width: 760px) {
  .chart-question h2 { font-size: 28px; }
}

.figure-card {
  border: 1px solid var(--ink);
  background: var(--paper);
  padding: 18px;
}

.figure-card img,
.figure-card svg {
  width: 100%;
  height: auto;
  display: block;
  margin-bottom: 14px;
}

.figure-card .chart-wrap {
  position: relative;
  width: 100%;
  height: 280px;
  margin-bottom: 14px;
}

.figure-card .chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

.figure-card .caption {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.4;
}

.figure-card .caption .fig-num {
  font-family: "Inter Tight", sans-serif;
  font-style: normal;
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

/* ============== RESEARCH LIST ============== */
.paper {
  margin: 32px 0 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--grid);
}

.paper:last-child { border-bottom: none; }

.paper .paper-tag {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}

.paper .paper-title {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 22px;
  line-height: 1.25;
  color: var(--ink);
  letter-spacing: -0.005em;
  margin-bottom: 6px;
  display: block;
}

.paper .paper-title:hover { color: var(--accent); }

.paper .authors {
  font-size: 13px;
  color: var(--ink-2);
  margin-bottom: 14px;
  font-family: "Inter Tight", sans-serif;
}

.paper .authors a { border-bottom: 1px dotted var(--ink-3); }
.paper .authors .year {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--ink-3);
  margin-left: 8px;
}

.paper .abstract {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 760px;
  margin-bottom: 18px;
}

.paper .figure-inline {
  border: 1px solid var(--ink);
  padding: 14px;
  background: var(--paper);
  margin-top: 18px;
  max-width: 560px;
}

.paper .figure-inline img,
.paper .figure-inline svg {
  width: 100%;
  height: auto;
  display: block;
}

.paper .figure-inline .fig-caption {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--grid);
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 12px;
  color: var(--ink-3);
}

/* ============== PROJECTS LIST ============== */
.project {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--grid);
}

.project:last-child { border-bottom: none; }

.project .project-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.05em;
}

.project .project-meta .label {
  font-family: "Inter Tight", sans-serif;
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

.project h3 {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 20px;
  margin: 0 0 8px;
  letter-spacing: -0.005em;
}

.project h3 a:hover { color: var(--accent); }

.project p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0 0 14px;
}

/* Project chart embed */
.project-figure {
  border: 1px solid var(--ink);
  background: var(--paper);
  padding: 18px;
  margin-top: 18px;
  max-width: 720px;
}

.project-figure .chart-wrap {
  position: relative;
  width: 100%;
  height: 300px;
  margin-bottom: 12px;
}

.project-figure .chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

.project-figure .fig-caption {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--grid);
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 12px;
  color: var(--ink-3);
  line-height: 1.5;
}

.project-figure .fig-caption .fig-num {
  font-family: "Inter Tight", sans-serif;
  font-style: normal;
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

@media (max-width: 760px) {
  .project-figure .chart-wrap { height: 240px; }
}

/* ============== INLINE LINK LIST ============== */
.tagged-list {
  list-style: none;
  margin: 24px 0 32px;
}

.tagged-list li {
  position: relative;
  padding: 12px 0 12px 18px;
  border-bottom: 1px solid var(--grid);
  font-size: 15px;
  line-height: 1.5;
}

.tagged-list li:last-child { border-bottom: none; }

.tagged-list li::before {
  content: "↳";
  position: absolute;
  left: 0;
  top: 12px;
  color: var(--accent);
  font-family: "Fraunces", serif;
  font-style: italic;
}

.tagged-list li em {
  font-style: italic;
  font-family: "Fraunces", serif;
  color: var(--ink);
  font-weight: 500;
}

.tagged-list a {
  border-bottom: 1px dotted var(--ink-3);
}

.tagged-list a:hover { border-bottom-color: var(--accent); border-bottom-style: solid; }

/* ============== PROSE (long-form text body) ============== */
.prose {
  max-width: 700px;
  margin: 24px 0 48px;
}

.prose p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink-2);
  margin-bottom: 18px;
}

.prose p strong { color: var(--ink); font-weight: 600; }

.prose p em {
  color: var(--accent);
  font-style: italic;
  font-family: "Fraunces", serif;
  font-weight: 500;
}

.prose blockquote {
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 22px;
  margin: 24px 0;
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 19px;
  line-height: 1.5;
  color: var(--ink);
}

.prose ul, .prose ol {
  margin: 18px 0 24px 24px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-2);
}

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

.prose ul li::marker { color: var(--accent); }

.prose hr {
  border: none;
  border-top: 1px solid var(--grid);
  margin: 36px 0;
}

/* ============== CONTACT ============== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1px solid var(--ink);
  margin-top: 32px;
}

.contact-cell {
  padding: 24px 28px;
  border-right: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.contact-cell:nth-child(2n) { border-right: none; }
.contact-cell:nth-last-child(-n+2) { border-bottom: none; }

.contact-cell .label {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-2);
  font-weight: 600;
  margin-bottom: 6px;
}

.contact-cell .val {
  font-family: "Fraunces", serif;
  font-size: 16px;
  color: var(--ink);
}

.contact-cell .val a { border-bottom: 1px dotted var(--ink-3); }

/* ============== COLOPHON / FOOTER ============== */
.colophon {
  margin-top: 96px;
  padding: 24px 0 0;
  border-top: 1px solid var(--ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.colophon .right { text-align: right; }
.colophon a { color: var(--ink-3); border-bottom: 1px dotted var(--ink-3); }
.colophon a:hover { color: var(--accent); border-color: var(--accent); }

/* ============== REVEAL ANIMATION ============== */
/* Default: visible. Animation only kicks in if .js-loaded class is on body */
.reveal { opacity: 1; }
.js-loaded .reveal {
  animation: rise 0.7s ease both;
  opacity: 0;
}
@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
.r1 { animation-delay: 0.05s; }
.r2 { animation-delay: 0.15s; }
.r3 { animation-delay: 0.25s; }
.r4 { animation-delay: 0.35s; }
.r5 { animation-delay: 0.45s; }

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

/* ============== MOBILE ============== */
@media (max-width: 760px) {
  .page { padding: 32px 20px 60px; }
  .mast { grid-template-columns: 1fr; gap: 16px; }
  .mast .meta { text-align: left; }
  .mast h1 { font-size: 36px; }
  .nav { flex-direction: column; align-items: flex-start; gap: 16px; padding: 12px 0 24px; margin-bottom: 32px; }
  .nav-links { flex-wrap: wrap; gap: 14px 18px; }
  .figures { grid-template-columns: 1fr; }
  .project { grid-template-columns: 1fr; gap: 12px; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-cell { border-right: none; }
  .contact-cell:nth-child(2n) { border-right: none; }
  .intro .lede { font-size: 22px; }
}