/* ------------------------------------------------------------------ tokens */

/* DAMA palette: blue, green, and red, as on danieleskandar.github.io. */
:root {
  --bg: #ffffff;
  --bg-tint: #f5f5f5;         /* abstract, BibTeX, footer */
  --surface: #ffffff;
  --border: #e3e6ea;
  --text: #2b2e33;
  --heading: #16191d;
  --text-muted: #5d6670;
  --blue: #2554c4;
  --green: #1f8a5b;
  --red: #b42a3a;
  --accent: var(--blue);
  --accent-soft: rgba(37, 84, 196, 0.08);
  --accent-2: var(--red);
  /* One colour per letter of DAMA, left to right: blue, teal, green, red.
     The acronym letters of the subtitle use the same colours. */
  --dama-d: var(--blue);
  --dama-a1: color-mix(in srgb, var(--blue) 50%, var(--green));
  --dama-m: var(--green);
  --dama-a2: var(--red);
  --gradient: linear-gradient(90deg, var(--dama-d) 12%, var(--dama-a1) 37%, var(--dama-m) 63%, var(--dama-a2) 88%);
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 6px 20px rgba(16, 24, 40, 0.07);
  --radius: 10px;
  --radius-sm: 8px;
  --narrow: 1000px;
  --wide: 1000px;
  --content: 1000px;        /* one width for every block, as Bulma's is-max-desktop */
  --gutter: clamp(16px, 4vw, 32px);
  color-scheme: only light;
}

/* ------------------------------------------------------------------ base */

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

html {
  font-size: 17.5px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  font-size: 1.02rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

h1,
h2,
h3,
h4 {
  color: var(--heading);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 1.9rem);
  font-weight: 600;
  margin-bottom: 1rem;
}

#abstract h2 {
  text-align: center;
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
}

p {
  margin: 0 0 1rem;
}

/* No lone word on the last line of a paragraph or caption. */
p,
figcaption,
dd,
.card p {
  text-wrap: pretty;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

img,
video {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.icon-fill {
  fill: currentColor !important;
  stroke: none !important;
}

.icon {
  width: 1.1em;
  height: 1.1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

/* ------------------------------------------------------------------ layout */

.narrow,
.wide {
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.narrow {
  max-width: calc(var(--narrow) + 2 * var(--gutter));
}

.wide {
  max-width: calc(var(--content) + 2 * var(--gutter));
}

.section {
  padding-top: clamp(40px, 5vw, 64px);
  padding-bottom: clamp(32px, 4vw, 48px);
  scroll-margin-top: 60px;
}

.subsection {
  margin-top: clamp(48px, 6vw, 72px);
  scroll-margin-top: 72px;
}

.section-tinted {
  background: var(--bg-tint);
}

.eyebrow {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.section .narrow > p:not(.eyebrow) {
  color: var(--text);
}

/* Section intros: main.js narrows each column to its fitted paragraph width. */
.narrow.prose {
  max-width: calc(var(--content) + 2 * var(--gutter));
}

.narrow.prose > p:not(.eyebrow) {
  text-align: justify;
  hyphens: auto;
  -webkit-hyphens: auto;
}

.section .narrow + .wide {
  margin-top: 2.25rem;
}

h3.sub {
  margin: 2.5rem 0 1rem;
}

h3.sub:first-child {
  margin-top: 0;
}

/* ------------------------------------------------------------------ navbar */

.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
  transform: translateY(-100%);
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.navbar.visible {
  transform: none;
}

.navbar-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  max-width: calc(var(--content) + 2 * var(--gutter));
  height: 60px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.navbar-brand {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  flex: none;
}

.navbar-brand:hover {
  text-decoration: none;
}

.navbar-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.navbar-links::-webkit-scrollbar {
  display: none;
}

.navbar-links a {
  position: relative;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
}

.navbar-links a:hover {
  color: var(--text);
  background: var(--bg-tint);
}

.navbar-links a.active {
  color: var(--accent);
  font-weight: 600;
}

.navbar-links a.active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -11px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}

.navbar-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
}

.navbar-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--gradient);
  opacity: 0.7;
}

@media (max-width: 760px) {
  .navbar-inner {
    gap: 12px;
    height: 52px;
  }

  .navbar-links a.active::after {
    bottom: -7px;
  }
}

/* ------------------------------------------------------------------ buttons */

.button,
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.button {
  padding: 0.75em 1.2em;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--text);
  color: var(--bg);
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.button[aria-disabled="true"] {
  background: var(--bg-tint);
  color: var(--text-muted);
  border-color: var(--border);
  cursor: default;
  transform: none;
}

.button.small {
  padding: 0.55em 0.95em;
  font-size: 0.85rem;
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.button.small:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.button.icon-only {
  padding: 0.6em;
}

.soon {
  font-size: 0.7em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25em 0.5em;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}

.pill {
  padding: 0.7em 1.25em;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
}

.pill .icon {
  width: 1.15em;
  height: 1.15em;
  color: var(--accent);
}

.pill:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: 0 4px 14px rgba(16, 24, 40, 0.08);
  transform: translateY(-1px);
  text-decoration: none;
}

.pill.icon-only {
  padding: 0.7em;
}

/* ------------------------------------------------------------------ hero */

.hero {
  max-width: calc(980px + 2 * var(--gutter));
  margin-inline: auto;
  padding: 72px var(--gutter) 40px;
  text-align: center;
}

.hero-top {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
}

.title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35em;
  margin-bottom: 28px;
}

.title-name {
  font-size: clamp(3.2rem, 9vw, 5.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  padding-bottom: 0.05em;       /* keeps descenders inside the clipped gradient */
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.title-sub {
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

/* The letters that spell DAMA, in the colour of the same letter in the title. */
.acr {
  font-weight: 800;
}

.acr-d { color: var(--dama-d); }
.acr-a1 { color: var(--dama-a1); }
.acr-m { color: var(--dama-m); }
.acr-a2 { color: var(--dama-a2); }

.authors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.3em 1.4em;
  font-size: 1.12rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.author {
  white-space: nowrap;
}

.authors a {
  color: var(--text);
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}

.authors a:hover {
  text-decoration: none;
  border-color: var(--accent);
  color: var(--accent);
}

.authors sup,
.affiliations sup {
  color: var(--text-muted);
  font-size: 0.65em;
  margin-left: 1px;
}

.affiliations {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.2em 1.2em;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.note {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 0.6rem;
  padding: 0.3em 0.85em;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 500;
}

.note-star {
  color: var(--accent);
  font-weight: 800;
}

.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 28px 0 36px;
}

.tldr {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px 28px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  font-size: 1.05rem;
  text-align: center;
  text-wrap: balance;   /* even line lengths, no dangling words */
}

.tldr-label {
  font-weight: 800;
  color: var(--accent);
  margin-right: 0.4em;
}

/* dropdown */

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translate(-50%, -4px);
  min-width: 260px;
  width: max-content;
  max-width: calc(100vw - 32px);
  padding: 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  text-align: left;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s, transform 0.15s, visibility 0.15s;
  z-index: 60;
}

.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.dropdown-menu a {
  display: flex;
  flex-direction: column;
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--text);
}

.dropdown-menu a:hover {
  background: var(--accent-soft);
  text-decoration: none;
}

.dropdown-menu span {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ------------------------------------------------------------------ teaser + stats */

.teaser {
  padding-bottom: clamp(36px, 5vw, 56px);
}

.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--bg-tint);
}

.media video,
.media img {
  width: 100%;
  height: auto;
}

.teaser-media {
  box-shadow: var(--shadow);
  aspect-ratio: 16 / 9;
}

.teaser-media video {
  height: 100%;
  object-fit: cover;
}

figcaption {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
  margin-top: 0.9rem;
  text-align: center;
}

figure {
  margin: 0;
}

.stats {
  max-width: calc(var(--content) + 2 * var(--gutter));
  margin: 44px auto 0;
  padding-inline: var(--gutter);
  display: flex;
}

/* Columns take their content width plus an equal share of the rest, so no
   label wraps on wide screens. */
.stats div {
  position: relative;
  flex: 1 1 auto;
  padding: 8px 18px;
  text-align: center;
}

.stats div + div::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18%;
  bottom: 18%;
  width: 1px;
  background: var(--border);
}

.stats dt {
  font-size: clamp(1.7rem, 2.8vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.15;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.stats dt small {
  font-size: 0.55em;
  font-weight: 700;
  margin-left: 0.12em;
  color: var(--accent);
}

.stats dd {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.35;
  white-space: nowrap;
}

.stats dd::before {
  content: "";
  display: block;
  width: 22px;
  height: 3px;
  margin: 0 auto 8px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

@media (max-width: 980px) {
  .stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    row-gap: 28px;
  }

  .stats div:nth-child(4)::before {
    display: none;
  }
}

@media (max-width: 560px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats dd {
    white-space: normal;
  }

  .stats div:nth-child(odd)::before {
    display: none;
  }
}

/* ------------------------------------------------------------------ figures */

.figure {
  margin-top: 56px;
  border-radius: var(--radius);
  background: #fff;             /* paper figures are drawn on white */
}

.figure img {
  width: 100%;
}

/* Figures without a caption: a thin frame, so the figure gets the full width. */
.figure-tight {
  margin-top: 0;
}

/* Subsection titles inside a section intro. */
.prose h3.sub {
  margin: 0.25rem 0 0.75rem;
  font-size: 1.3rem;
}

.wide h3.sub {
  scroll-margin-top: 80px;
  margin: 48px 0 14px;
  font-size: 1.4rem;
  font-weight: 600;
}

.figure figcaption {
  max-width: 900px;
  margin: 0.75rem auto 0;
  padding-bottom: 0.25rem;
  color: #3d454e;
  font-size: 0.98rem;
}


/* ------------------------------------------------------------------ carousel */

.carousel-stage {
  position: relative;
}

/* Arrows beside the video; inside its edges when the screen has no room. */
.carousel-stage .arrow {
  position: absolute;
  top: var(--arrow-top, 50%);
  transform: translateY(-50%);
  z-index: 2;
}

.carousel-stage .arrow.prev {
  left: -64px;
}

.carousel-stage .arrow.next {
  right: -64px;
}

@media (max-width: 1240px) {
  .carousel-stage .arrow.prev {
    left: 8px;
  }

  .carousel-stage .arrow.next {
    right: 8px;
  }

  .carousel-stage .arrow {
    background: color-mix(in srgb, var(--surface) 85%, transparent);
    backdrop-filter: blur(6px);
  }
}

.carousel {
  position: relative;
}

.carousel-track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
  border-radius: var(--radius);
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.slide {
  flex: 0 0 100%;
  scroll-snap-align: center;
  display: flex;
  justify-content: center;
  margin: 0;
}

/* Every slide stretches to the tallest one; the caption box absorbs the
   difference, so all caption boxes share one height. */
.slide-body {
  width: 100%;
  display: flex;
  flex-direction: column;
}

.panel-heads {
  display: grid;
  gap: 10px;
  margin-bottom: 12px;
  min-height: 3.2em;          /* two caption lines: every video starts at one height */
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.panel-head .tag {
  margin-bottom: 0;
}

.panel-caption {
  font-size: 0.9rem;
  line-height: 1.4;
  color: var(--text);
  text-wrap: balance;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.slide .media {
  background: #fff;
}

.slide .media video {
  height: 100%;
  object-fit: cover;
}

.slide-body > .media.unframed::after {
  display: none;
}

.slide-body > .media::after {
  /* frames the composed panel on the right, as in the main-idea diagram */
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: var(--last-panel, 25%);
  border: 2px solid var(--role-purple);
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: inset 0 0 0 4px color-mix(in srgb, var(--role-purple) 10%, transparent);
  pointer-events: none;
}

.slide-caption {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 14px 0 0;
  padding: 14px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  text-align: center;
  font-size: 1.08rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--text);
}

.carousel-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 16px;
}

.carousel-stage .arrow,
.carousel-nav .arrow {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.carousel-stage .arrow:hover,
.carousel-nav .arrow:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.dots {
  display: flex;
  gap: 6px;
}

.dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: var(--border);
  cursor: pointer;
  transition: width 0.25s, background 0.25s;
}

.dots button[aria-current="true"] {
  width: 22px;
  background: var(--accent);
}

/* ------------------------------------------------------------------ dama */

/* Venue line under the title. */
.venue {
  margin: 0 0 22px;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-muted);
}

.venue a {
  color: inherit;
}

.venue a:hover {
  color: var(--accent);
  text-decoration: none;
}

.venue .oral {
  margin-left: 0.3em;
  color: var(--red);
  font-weight: 700;
}

/* Section intro text inside a section, after an h3. */
.section .wide > p,
.section .wide > .lead {
  color: var(--text);
  text-align: justify;
  hyphens: auto;
  -webkit-hyphens: auto;
  margin: 0 0 1.25rem;
}

.wide h4.sub {
  margin: 32px 0 10px;
  font-size: 1.18rem;
  font-weight: 600;
}

.figure-narrow {
  max-width: 460px;
  margin-inline: auto;
}

.figure + h3.sub,
.video-block + h3.sub,
.carousel + h3.sub {
  margin-top: 48px;
}

/* A single video outside a carousel. */
.video-block {
  margin: 0 0 18px;
  background: #fff;
}

.video-block video,
.slide .media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Single-video slides. */
.slide > .media {
  width: 100%;
  background: #fff;
}

/* Funding logos. */
.logos {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  margin-top: 2rem;
}

.logo-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1.75rem;
}

.logo-row img {
  width: auto;
  object-fit: contain;
}

@media (max-width: 768px) {
  .logo-row img {
    height: 30px !important;
  }
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-links .icon {
  width: 1.5rem;
  height: 1.5rem;
}

.bib-type { color: var(--blue); font-weight: 700; }
.bib-key { color: var(--red); }
.bib-field { color: var(--green); }

/* ------------------------------------------------------------------ bibtex */

.code-block {
  position: relative;
  border-radius: var(--radius);
  background: var(--bg-tint);
}

.code-block pre {
  margin: 0;
  padding: 22px;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
}

.code-block .copy {
  position: absolute;
  top: 12px;
  right: 12px;
}

.code-block .copy.done {
  border-color: #2f9e6e;
  color: #2f9e6e;
}

/* ------------------------------------------------------------------ footer */

.footer {
  padding: 40px var(--gutter) 56px;
  background: var(--bg-tint);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer p {
  margin: 0;
}

/* ------------------------------------------------------------------ motion */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}