/* ==========================================================================
   irenezanardi.com — main stylesheet
   Values below reproduce the original WordPress (Twenty Twenty-Four) theme.
   ========================================================================== */

/* ---------- Fonts ---------- */
@font-face { font-family: "Inter"; font-style: normal; font-weight: 300 900; font-display: fallback; src: url("../fonts/Inter-Variable.woff2") format("woff2"); }
@font-face { font-family: "Cardo"; font-style: normal; font-weight: 400; font-display: fallback; src: url("../fonts/Cardo-Regular.woff2") format("woff2"); }
@font-face { font-family: "Cardo"; font-style: italic; font-weight: 400; font-display: fallback; src: url("../fonts/Cardo-Italic.woff2") format("woff2"); }
@font-face { font-family: "Cardo"; font-style: normal; font-weight: 700; font-display: fallback; src: url("../fonts/Cardo-Bold.woff2") format("woff2"); }
@font-face { font-family: "Space Mono"; font-style: normal; font-weight: 400; font-display: fallback; src: url("../fonts/SpaceMono-Regular.woff2") format("woff2"); }
@font-face { font-family: "Space Mono"; font-style: normal; font-weight: 700; font-display: fallback; src: url("../fonts/SpaceMono-Bold.woff2") format("woff2"); }
@font-face { font-family: "Space Mono"; font-style: italic; font-weight: 400; font-display: fallback; src: url("../fonts/SpaceMono-Italic.woff2") format("woff2"); }
@font-face { font-family: "Space Mono"; font-style: italic; font-weight: 700; font-display: fallback; src: url("../fonts/SpaceMono-BoldItalic.woff2") format("woff2"); }

/* ---------- Design tokens ---------- */
:root {
  /* colours */
  --base: #f9f9f9;
  --base-2: #ffffff;
  --contrast: #111111;
  --pink: #ffb2e6;
  --lilac: #e59eff;

  /* fonts */
  --font-body: "Inter", sans-serif;
  --font-heading: "Cardo", serif;
  --font-mono: "Space Mono", monospace;

  /* font sizes */
  --fs-small: 0.9rem;
  --fs-medium: 1.05rem;
  --fs-large: clamp(1.39rem, 1.39rem + ((1vw - 0.2rem) * 0.767), 1.85rem);
  --fs-x-large: clamp(1.85rem, 1.85rem + ((1vw - 0.2rem) * 1.083), 2.5rem);
  --fs-xx-large: clamp(2.5rem, 2.5rem + ((1vw - 0.2rem) * 1.283), 3.27rem);
  --fs-hero: clamp(1.743rem, 1.743rem + ((1vw - 0.2rem) * 2.095), 3rem);

  /* spacing */
  --sp-10: 1rem;
  --sp-20: min(1.5rem, 2vw);
  --sp-30: min(2.5rem, 3vw);
  --sp-40: min(4rem, 5vw);
  --sp-50: min(6.5rem, 8vw);
  --sp-60: min(10.5rem, 13vw);
  --gap: 1.2rem;

  /* widths */
  --content: 620px;
  --wide: 1280px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background-color: var(--base);
  color: var(--contrast);
  font-family: var(--font-body);
  font-size: var(--fs-medium);
  font-weight: 400;
  line-height: 1.55;
}

body.menu-open,
body.lightbox-open { overflow: hidden; }

p, h1, h2, h3, h4, h5, h6, figure { margin: 0; }

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

a { color: var(--contrast); }
a:hover { text-decoration: none; }

h1, h2, h3, h4, h5, h6 {
  color: inherit;
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.2;
}
h1 { font-size: var(--fs-xx-large); line-height: 1.15; }
h2 { font-size: var(--fs-x-large); }
h3 { font-size: var(--fs-large); }
h4 { font-size: clamp(1.1rem, 1.1rem + ((1vw - 0.2rem) * 0.767), 1.5rem); }

.skip-link {
  position: absolute;
  left: 5px;
  top: -100px;
  z-index: 100000;
  padding: 15px 23px 14px;
  background: #ddd;
  color: #444;
}
.skip-link:focus { top: 5px; }

/* ---------- Layout helpers ---------- */
.flow > * + * { margin-top: var(--gap); }

.container { max-width: var(--content); margin-inline: auto; }
.container--800 { max-width: 800px; }
.container--wide { max-width: var(--wide); }

.gutter { padding-inline: var(--sp-50); }

.center { text-align: center; }
.small { font-size: var(--fs-small); }
.large-serif { font-family: var(--font-heading); font-size: var(--fs-x-large); line-height: 1.2; }

/* Full-width coloured section */
.band { padding: var(--sp-50); }
.band--white { background: var(--base-2); }
.band--base { background: var(--base); }
.band--pink { background: var(--pink); }

.band__title { text-align: center; }
.band__intro {
  max-width: var(--content);
  margin: calc(var(--gap) + 1.25rem) auto 0;
  text-align: center;
}
.band__body { margin-top: calc(var(--sp-40) + var(--gap)); }

/* Hover colour used on headings across the site */
.highlighted:hover { color: var(--lilac); }

/* ---------- Header & navigation ---------- */
.site-header {
  position: relative;
  z-index: 10;
  background: var(--base);
  padding: 20px var(--sp-50);
}

.site-header__inner {
  max-width: var(--wide);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
}

.site-logo img { display: block; width: 40px; height: auto; }

.nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: var(--sp-20);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav__list a {
  display: block;
  color: inherit;
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: lowercase;
  text-decoration: none;
}
.nav__list a:hover { text-decoration: underline; }
.nav__list img { display: block; width: 50px; }

.nav__open,
.nav__close {
  display: none;
  padding: 0;
  border: 0;
  background: transparent;
  color: currentColor;
  cursor: pointer;
}
.nav__open svg,
.nav__close svg { display: block; width: 24px; height: 24px; fill: currentColor; }

/* Mobile: hamburger + full-screen overlay (same breakpoint as WordPress) */
@media (max-width: 599px) {
  .nav__open { display: flex; }

  .nav__panel { display: none; }
  .nav.is-open .nav__panel {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 100000;
    overflow: auto;
    padding: 1rem;
    background: #fff;
    color: #000;
    animation: menu-fade-in 0.1s ease-out forwards;
  }

  .nav__close { display: block; position: absolute; top: 1rem; right: 1rem; }

  .nav__list {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: flex-end;
    padding-top: calc(2rem + 24px);
  }
}

@keyframes menu-fade-in {
  from { opacity: 0; transform: translateY(0.5em); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Page title (inner pages) ---------- */
.page-title {
  padding: calc(var(--sp-50) + 2 * var(--gap)) var(--sp-50) calc(var(--sp-30) + 2 * var(--gap));
  text-align: center;
}
.page-title__intro { max-width: var(--content); margin: var(--sp-30) auto 0; }

/* ---------- Home: hero ---------- */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 70vh;
  padding-inline: var(--sp-60);
}
.hero__inner { width: 100%; max-width: var(--content); }

.hero__hello,
.hero__intro {
  font-family: var(--font-mono);
  font-size: var(--fs-hero);
}
.hero__hello { font-weight: 700; line-height: 1; }
.hero__intro { margin-top: var(--gap); font-weight: 400; line-height: 1.3; }

.typewriter {
  width: fit-content;
  overflow: hidden;
  white-space: nowrap;
  border-right: 3px solid;
  /* "Hello there." is 12 characters of a monospace font, so 12ch is exactly its width */
  animation: typing 1s steps(12), blink 0.7s step-end infinite alternate;
}
@keyframes typing { from { width: 0; } to { width: 12ch; } }
@keyframes blink { 50% { border-color: transparent; } }

.scroll-arrow-wrap { padding-inline: var(--sp-60); }
.scroll-arrow {
  display: block;
  margin-top: 10px;
  animation: bounce 1.5s infinite;
}
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-15px); }
  60% { transform: translateY(-7px); }
}

.bio { padding-top: calc(40px + var(--gap)); padding-bottom: 100px; }
.inline-logo { display: inline; vertical-align: baseline; }

/* ---------- Home: photo carousels ---------- */
.carousel {
  overflow: hidden;
  margin-top: var(--gap);
}
.carousel__track {
  display: flex;
  gap: 10px;
  transition: transform 2s linear;
  will-change: transform;
}
.carousel__track + .carousel__track { margin-top: 10px; }

.carousel__slide { flex: 0 0 calc(22.5% + 15px); }
@media (max-width: 768px) {
  .carousel__slide { flex-basis: 60%; }
}
.carousel__slide img { display: block; width: 100%; height: auto; }
.carousel__slide img:hover { filter: sepia(0.3) hue-rotate(-110deg) saturate(4); }

/* ---------- Wavy animated button ---------- */
.wave {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.wave__line {
  height: 2em;
  min-width: 0;
  flex-shrink: 1;
  fill: none;
  stroke: #000;
  stroke-width: 1px;
}
.wave__line--forward { animation: wave-forward 4s linear infinite; }
.wave__line--back { animation: wave-back 4s linear infinite; }

.wave__button {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 10em;
  height: 8em;
  margin: 1em;
  color: #000;
  font-family: var(--font-mono);
  text-align: center;
  text-decoration: none;
  animation: pulse 4s infinite;
}
.wave__button--wide { width: 15em; }

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}
@keyframes wave-back {
  0%, 100% { stroke-dasharray: 100; stroke-dashoffset: 0; }
  50% { stroke-dasharray: 100; stroke-dashoffset: 85; }
}
@keyframes wave-forward {
  0%, 100% { stroke-dasharray: 100; stroke-dashoffset: 0; }
  50% { stroke-dasharray: 100; stroke-dashoffset: -100; }
}

.cta { padding-block: 64px; color: #000; }
.cta h4 { font-size: var(--fs-large); line-height: 1.15; text-align: center; }
.cta .wave { margin-top: var(--gap); }

/* ---------- Card grid (publications & theses) ---------- */
.card-grid {
  max-width: var(--wide);
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: var(--sp-40);
  row-gap: calc(2 * var(--gap) + var(--sp-20));
}

.card { display: flex; flex-direction: column; gap: var(--sp-10); }
.card__marker { font-weight: 700; }
.card__title {
  font-family: var(--font-body);
  font-size: var(--fs-medium);
  font-weight: 700;
  line-height: 1.2;
}
.card__year { font-size: var(--fs-small); font-style: italic; }

@media (max-width: 781px) {
  .card-grid { grid-template-columns: 1fr; row-gap: var(--sp-30); }
}

/* ---------- Teaching: course rows ---------- */
.course {
  max-width: var(--wide);
  margin-inline: auto;
  display: flex;
  gap: var(--sp-40) var(--sp-30);
}
.course__meta { flex: 0 1 40%; }
.course__meta > * { max-width: 260px; }
.course__body { flex: 0 1 60%; }
.course__body > * + * { margin-top: var(--sp-40); }

.two-col { display: flex; gap: var(--sp-30); }
.two-col > * { flex: 1 1 0; min-width: 0; }

@media (max-width: 781px) {
  .course,
  .two-col { flex-direction: column; }
  .course__meta,
  .course__body { flex-basis: auto; }
}

/* ---------- Tadaa ---------- */
.eyebrow { font-size: var(--fs-small); }

.quote-band {
  padding: var(--sp-60);
  background-color: var(--contrast);
  background-image: url("../img/tadaa-quote-bg.png");
  background-position: 47% 69%;
  background-size: cover;
  color: var(--base);
  text-align: center;
}
.quote-band blockquote { margin: 0 auto; }
.quote-band p { font-family: var(--font-heading); font-size: var(--fs-x-large); font-weight: 700; line-height: 1.2; }
.quote-band cite { display: block; margin-top: calc(var(--gap) + var(--sp-10)); font-style: normal; font-weight: 700; }

/* ---------- Contact ---------- */
.contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  padding-inline: var(--sp-50);
  text-align: center;
}
.contact h2 { font-size: var(--fs-x-large); }

/* ---------- Posters gallery ---------- */
.poster-gallery { max-width: var(--wide); margin-inline: auto; }

/* Plain list: what the page shows if JavaScript is off */
.poster-list { max-width: var(--content); margin: 0 auto; padding: 0; list-style: none; }
.poster-list > li + li { margin-top: var(--sp-40); }
.poster-list img { display: block; width: 100%; }
.poster-list .poster__caption { margin-top: var(--sp-10); }
.poster-gallery.is-enhanced .poster-list { display: none; }

.poster__title { font-size: var(--fs-large); }
.poster__venue { font-family: var(--font-mono); font-size: var(--fs-small); text-transform: uppercase; }
.poster__caption > * + * { margin-top: 0.4rem; }

/* Thumbnail strip */
.pg-thumbs {
  position: relative;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 6px;
  scrollbar-width: thin;
}
.pg-thumbs > :first-child { margin-left: auto; }
.pg-thumbs > :last-child { margin-right: auto; }

.pg-thumb {
  flex: 0 0 auto;
  width: 64px;
  height: 64px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  opacity: 0.45;
  transition: opacity 0.2s ease;
}
.pg-thumb img { display: block; width: 100%; height: 100%; object-fit: cover; }
.pg-thumb:hover { opacity: 0.8; }
.pg-thumb[aria-current="true"] { opacity: 1; outline: 2px solid var(--contrast); outline-offset: 3px; }

/* Stage: previous – current – next */
/* Image heights are set from --stage-h directly so a poster can never grow
   taller than the stage and overlap the caption below. */
.pg-stage {
  --stage-h: clamp(320px, 56vh, 640px);
  --side-scale: 0.55;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2.2fr) minmax(0, 1fr);
  grid-template-rows: var(--stage-h);
  align-items: center;
  gap: var(--sp-30);
  margin-top: var(--sp-40);
}

.pg-main,
.pg-side {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}
.pg-main img,
.pg-side img { display: block; width: auto; height: auto; max-width: 100%; object-fit: contain; }
.pg-main img { max-height: var(--stage-h); box-shadow: 0 12px 40px rgba(0, 0, 0, 0.14); }
.pg-side img { max-height: calc(var(--stage-h) * var(--side-scale)); }
.pg-main img.is-entering { animation: poster-in 0.35s ease-out; }

.pg-side { opacity: 0.4; transition: opacity 0.2s ease; }
.pg-side:hover { opacity: 0.85; }
.pg-side--prev { justify-content: flex-end; }
.pg-side--next { justify-content: flex-start; }

@keyframes poster-in {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}

.pg-caption {
  max-width: var(--content);
  min-height: 7.5rem;
  margin: var(--sp-30) auto 0;
  text-align: center;
}
.pg-counter { margin-top: var(--sp-10); font-family: var(--font-mono); font-size: var(--fs-small); }

@media (max-width: 599px) {
  .pg-stage {
    --stage-h: clamp(300px, 58vh, 520px);
    --side-scale: 0.65;
    grid-template-columns: minmax(0, 0.7fr) minmax(0, 3fr) minmax(0, 0.7fr);
    gap: 8px;
  }
}

/* ---------- Full-screen image viewer ---------- */
.lightbox {
  width: 100vw;
  max-width: none;
  height: 100vh;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgba(17, 17, 17, 0.95);
  color: var(--base);
}
.lightbox::backdrop { background: rgba(17, 17, 17, 0.6); }

.lightbox__figure {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  height: 100%;
  margin: 0;
  padding: 1rem 4rem;
}
.lightbox__figure img {
  max-width: 100%;
  max-height: calc(100% - 2.5rem);
  object-fit: contain;
}
.lightbox__caption { font-family: var(--font-mono); font-size: var(--fs-small); text-align: center; }

.lightbox__btn {
  position: absolute;
  z-index: 1;
  padding: 0.75rem;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
}
.lightbox__btn svg { display: block; width: 32px; height: 32px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.lightbox__btn:hover { color: var(--lilac); }
.lightbox__close { top: 0.5rem; right: 0.5rem; }
.lightbox__prev { top: 50%; left: 0.25rem; transform: translateY(-50%); }
.lightbox__next { top: 50%; right: 0.25rem; transform: translateY(-50%); }

@media (max-width: 599px) {
  .lightbox__figure { padding: 3.5rem 0.5rem 1rem; }
  .lightbox__prev,
  .lightbox__next { top: auto; bottom: 0.25rem; transform: none; }
}

/* ---------- Resources: toolkits ---------- */
.toolkit { max-width: var(--wide); margin-inline: auto; }

.toolkit__header { max-width: 800px; }
.toolkit__header > * + * { margin-top: var(--gap); }
.toolkit__title { font-size: var(--fs-x-large); }
.toolkit__lead { font-family: var(--font-heading); font-size: var(--fs-large); line-height: 1.25; }

.toolkit__tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  border: 2px solid var(--lilac);
  border-radius: 999px;
  background: var(--lilac);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  font-weight: 700;
}
.tag--outline { background: transparent; border-color: var(--contrast); }

.toolkit__hero { margin-top: var(--sp-40); }
.toolkit__hero img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.toolkit__body {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  align-items: start;
  gap: var(--sp-40) var(--sp-50);
  margin-top: var(--sp-40);
}
.toolkit__text > * + * { margin-top: var(--gap); }
.toolkit__text > .toolkit__shots { margin-top: var(--sp-30); }

/* Sidebar with two boxes ("What's inside" and "Read the paper");
   it stays in view while the description scrolls */
.toolkit__side {
  position: sticky;
  top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: var(--sp-20);
}
.toolkit__panel {
  padding: max(var(--sp-30), 1.25rem);
  background: var(--base);
}
.band--base .toolkit__panel { background: var(--base-2); }

.toolkit__panel-title { font-size: var(--fs-small); text-transform: uppercase; }

.inside-list { margin: var(--gap) 0 0; padding: 0; list-style: none; }
.inside-list li {
  display: flex;
  flex-direction: column;
  padding: 0.7rem 0;
  border-top: 1px solid rgba(17, 17, 17, 0.15);
}
.inside-list li:last-child { border-bottom: 1px solid rgba(17, 17, 17, 0.15); }
.inside-list span { font-size: var(--fs-small); }

.toolkit__downloads { display: flex; flex-direction: column; align-items: flex-start; gap: 0.75rem; margin-top: var(--sp-30); }
.toolkit__note { margin-top: 0.75rem; font-size: var(--fs-small); }

.toolkit__shots {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.toolkit__shots img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}
.toolkit__shots img:hover { filter: sepia(0.3) hue-rotate(-110deg) saturate(4); }

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.7rem 1.3rem;
  border: 2px solid var(--contrast);
  border-radius: 999px;
  color: var(--contrast);
  font-family: var(--font-mono);
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}
.button:hover { background: var(--lilac); border-color: var(--lilac); }
.button svg { width: 1.1em; height: 1.1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
/* "Read the paper" box */
.toolkit__paper a { display: inline-block; margin-top: var(--gap); font-weight: 600; line-height: 1.35; }
.toolkit__paper a::after { content: " \2197"; text-decoration: none; display: inline-block; margin-left: 0.25em; }
.toolkit__paper a:hover { color: var(--lilac); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

@media (max-width: 781px) {
  .toolkit__body { grid-template-columns: 1fr; }
  .toolkit__side { position: static; }
}
@media (max-width: 599px) {
  .toolkit__panel { padding: 1rem; }
  .toolkit__downloads .button { padding: 0.6rem 1rem; font-size: var(--fs-small); white-space: nowrap; }
}

/* ---------- Custom cursor (only on devices with a mouse) ---------- */
@media (hover: hover) and (pointer: fine) {
  body.has-custom-cursor,
  body.has-custom-cursor a,
  body.has-custom-cursor button { cursor: none; }
}

.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100001;
  width: 20px;
  height: 20px;
  border: 2px solid #000;
  border-radius: 50%;
  background-color: transparent;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, -50%);
  transition: background-color 0.2s ease, transform 0.1s ease;
  will-change: left, top;
}
.custom-cursor.is-visible { opacity: 1; }
.custom-cursor.clickable { background-color: var(--lilac); border-color: var(--lilac); }
.lightbox .custom-cursor { border-color: var(--base); }

/* ---------- Respect "reduce motion" system setting ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}