/* =========================================================
   Dariusz Jemielniak - scholarly landing page
   Editorial / journal-inspired. Cream paper, ink, cinnabar.
   ========================================================= */

:root {
  --paper: #f1ece0;
  --paper-deep: #e8e1d0;
  --ink: #1a1612;
  --ink-soft: #3a322b;
  --ink-mute: #6b5f53;
  --rule: #c8bca4;
  --accent: #b2422b;       /* oxidized red / cinnabar */
  --accent-deep: #8a2f1d;

  --serif: "Fraunces", "Iowan Old Style", "Hoefler Text", Georgia, serif;
  --sans:  "Inter Tight", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1200px;
  --gutter: clamp(20px, 4vw, 60px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* subtle paper grain */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  z-index: 100;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.10 0 0 0 0 0.08 0 0 0 0 0.06 0 0 0 0.18 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  mix-blend-mode: multiply;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  transition: color 0.2s, border-color 0.2s;
}
a:hover {
  color: var(--accent-deep);
  border-bottom-color: var(--accent-deep);
}

em { font-style: italic; }

/* =========================================================
   MASTHEAD
   ========================================================= */
.masthead {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 22px var(--gutter);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  z-index: 50;
}
.mast-left { display: flex; align-items: center; gap: 10px; }
.mast-center { text-align: center; }
.mast-right { text-align: right; }
.mast-right a { color: var(--ink-soft); border-bottom: none; }
.mast-right a:hover { color: var(--accent); }

/* Language switcher in the masthead */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--mono);
}
.lang-switch a, .lang-switch span {
  display: inline-block;
  padding: 4px 9px;
  border-radius: 999px;
  border-bottom: none;
  letter-spacing: 0.16em;
  font-size: 11px;
  color: var(--ink-soft);
  transition: background 0.2s, color 0.2s;
}
.lang-switch a:hover {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}
.lang-switch .current {
  background: var(--ink);
  color: var(--paper);
}

.meta-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}

/* On small screens, masthead becomes more compact */
@media (max-width: 640px) {
  .masthead {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 18px var(--gutter);
  }
  .mast-center { grid-column: 1 / -1; order: 3; text-align: center; }
  .mast-left { font-size: 10px; }
}

/* =========================================================
   GENERIC SECTION SCAFFOLDING
   ========================================================= */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

section { padding: 80px 0; }
@media (max-width: 720px) { section { padding: 56px 0; } }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 14px;
}
.section-head .num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-weight: 500;
}
.section-head h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(28px, 4vw, 44px);
  margin: 0;
  letter-spacing: -0.01em;
  font-variation-settings: "SOFT" 60, "WONK" 1;
}

.rule {
  display: flex; align-items: center; justify-content: center;
  gap: 16px;
  color: var(--rule);
  font-family: var(--serif);
  font-style: italic;
  position: relative;
}
.rule::before, .rule::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}
.rule span {
  font-size: 14px;
  color: var(--ink-mute);
  padding: 0 6px;
}

/* =========================================================
   HERO
   ========================================================= */
.hero { padding-top: 64px; padding-bottom: 100px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}
@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 22px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.kicker::before {
  content: "";
  width: 28px; height: 1px;
  background: var(--accent);
  display: inline-block;
}

h1.display {
  font-family: var(--serif);
  font-weight: 360;
  font-size: clamp(56px, 11vw, 132px);
  line-height: 0.92;
  letter-spacing: -0.035em;
  margin: 0 0 28px;
  color: var(--ink);
  font-variation-settings: "opsz" 144, "SOFT" 20, "WONK" 0;
}
h1.display em {
  font-style: italic;
  font-weight: 320;
  color: var(--accent);
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}

.lede {
  font-family: var(--serif);
  font-weight: 350;
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.45;
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 0 0 36px;
  font-variation-settings: "opsz" 36;
}

.roles {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.roles li {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 24px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 14.5px;
}
.role-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  align-self: center;
}
.role-org {
  color: var(--ink);
  font-weight: 500;
}

.portrait {
  margin: 0;
  position: relative;
  transform: translateY(8px);
}
.portrait img {
  width: 100%;
  display: block;
  filter: grayscale(0.18) contrast(1.02) sepia(0.06);
  border: 1px solid var(--rule);
}
.portrait::before {
  content: "";
  position: absolute;
  inset: 14px -14px -14px 14px;
  background: var(--accent);
  z-index: -1;
  opacity: 0.92;
}
.portrait figcaption {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper);
  padding: 14px 14px 8px;
  margin-top: 8px;
  position: relative;
  z-index: 1;
}

/* =========================================================
   ABOUT
   ========================================================= */
.about-body {
  max-width: 68ch;
  margin: 0 auto;
}
.about-body p {
  font-family: var(--serif);
  font-size: clamp(18px, 1.7vw, 21px);
  font-weight: 360;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0 0 20px;
  font-variation-settings: "opsz" 18;
}
.about-body p:first-child::first-letter {
  font-family: var(--serif);
  font-size: 4.2em;
  font-style: italic;
  float: left;
  line-height: 0.85;
  padding: 6px 12px 0 0;
  color: var(--accent);
  font-weight: 360;
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}

/* =========================================================
   THEMES
   ========================================================= */
.themes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
@media (max-width: 720px) {
  .themes-grid { grid-template-columns: 1fr; }
}
.theme {
  padding: 28px 30px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  transition: background 0.3s;
}
.theme:hover { background: var(--paper-deep); }
.theme h3 {
  font-family: var(--serif);
  font-weight: 420;
  font-size: 22px;
  font-style: italic;
  margin: 0 0 10px;
  color: var(--ink);
  font-variation-settings: "opsz" 36, "SOFT" 50;
}
.theme p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.55;
}

/* =========================================================
   BOOKS
   ========================================================= */
.books-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--rule);
}
.book {
  display: grid;
  grid-template-columns: 120px 1fr 2.2fr;
  gap: clamp(16px, 3vw, 40px);
  padding: 24px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
  transition: padding 0.3s;
  position: relative;
}
.book:hover { padding-left: 12px; }
.book::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 0;
  background: var(--accent);
  transition: width 0.25s;
}
.book:hover::before { width: 3px; }

@media (max-width: 720px) {
  .book { grid-template-columns: 1fr; gap: 6px; padding: 20px 0; }
}

.book-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.book-meta .year { color: var(--accent); font-weight: 500; }
.book-meta .pub { color: var(--ink-mute); }

.book-title {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 380;
  font-size: clamp(22px, 2.6vw, 30px);
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.012em;
  color: var(--ink);
  font-variation-settings: "opsz" 60, "SOFT" 40, "WONK" 1;
}

.book-note {
  margin: 0;
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.55;
}

/* =========================================================
   PAPERS
   ========================================================= */
.paper-list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.paper-list li {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.paper-year {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
}
.paper-title {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 420;
  margin: 0 0 4px;
  color: var(--ink);
  line-height: 1.3;
}
.paper-venue {
  margin: 0;
  font-size: 14px;
  color: var(--ink-mute);
}
.papers-cta {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  margin: 16px 0 0;
}

/* =========================================================
   TALKS
   ========================================================= */
.talks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 4vw, 48px);
}
@media (max-width: 820px) { .talks-grid { grid-template-columns: 1fr; } }

.talks-grid h3 {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 420;
  font-size: 24px;
  margin: 0 0 10px;
  color: var(--accent);
  font-variation-settings: "opsz" 36, "SOFT" 80;
}
.talks-grid p {
  margin: 0;
  font-size: 15.5px;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* =========================================================
   CONTACT
   ========================================================= */
.contact-body { max-width: 60ch; }
.contact-lede {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 360;
  line-height: 1.35;
  color: var(--ink);
  margin: 0 0 32px;
  font-variation-settings: "opsz" 48, "SOFT" 60, "WONK" 1;
}
.links {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.links li {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  align-items: center;
}
@media (max-width: 540px) {
  .links li { grid-template-columns: 1fr; gap: 4px; }
}
.link-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.links a {
  font-size: 16px;
  word-break: break-word;
}

/* Wikipedia row: three language sub-links inline */
.wiki-langs {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.wiki-langs a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  padding: 4px 10px;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: 999px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.wiki-langs a:hover {
  background: var(--accent);
  color: var(--paper);
  border-color: var(--accent);
}

/* =========================================================
   COLOPHON
   ========================================================= */
.colophon {
  max-width: var(--maxw);
  margin: 60px auto 0;
  padding: 30px var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-mute);
}
.colophon div { display: flex; align-items: center; gap: 12px; }
.foot-mark {
  font-family: var(--serif);
  font-style: italic;
  font-size: 22px;
  color: var(--accent);
}
.colophon p { margin: 0; }

/* =========================================================
   SCROLL REVEAL (only applied when JS is present)
   ========================================================= */
.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.js .reveal.in {
  opacity: 1;
  transform: none;
}

/* =========================================================
   SELECTION
   ========================================================= */
::selection {
  background: var(--accent);
  color: var(--paper);
}

/* Wikipedia pills under the hero roles */
.hero-wiki {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0 0;
}
.hero-wiki-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}