/* Shared palette and paper identity. Section compositions live in layouts.css. */
body.paper-project {
  /* Ball colors supply the accents; the page gray is sampled from the supplied reference. */
  --ball-blue: #4f95ff;
  --ball-red: #ff6c64;
  --ball-purple: #b174ff;
  --ball-yellow: #ffda62;
  --ball-orange: #ff9e5e;
  --ball-green: #79cf9a;
  --ball-burgundy: #c83b50;
  --paper-accent: #79b39a;
  --paper-accent-hover: #91cab0;
  --paper-accent-ink: #14291e;
  --paper-charcoal: #423b44;
  --border-color-main: #d5d5d4;
  --border-color-subtle: #6d6c69;
  --border-main: 1px var(--border-color-main) solid;
  --border-subtle: 1px var(--border-color-subtle) solid;
  background-color: var(--paper-charcoal);
  font-family: 'Geist Wght', sans-serif;
}

.paper-project ::selection { background: var(--paper-accent); color: var(--paper-accent-ink); }
.paper-project input[type='range'] { accent-color: var(--paper-accent); }

/* Footage fills its stage; labels stay separate from playback controls. */
.paper-project video[data-loop-video] { position: absolute; inset: 0; display: block; width: 100%; height: 100%; object-fit: contain; background: var(--lab-panel-deep); opacity: 0; pointer-events: none; }
.paper-project video[data-loop-video].is-ready { opacity: 1; }
.paper-project video[data-video-controls] { pointer-events: auto; }
.has-loop-video > .lab-frame-center, .has-loop-video > .lab-demo-outline, .has-loop-video > .lab-demo-center-label, .has-loop-video > .paper-video-center { visibility: hidden; }
.has-loop-video > .lab-frame-tag, .has-loop-video > .lab-frame-code, .has-loop-video > .lab-panel-topline, .has-loop-video > .lab-demo-bottom { text-shadow: 0 1px 8px #000; }

/* Publication details sit beneath the title; the film has its own caption. */
.paper-authors, .paper-affiliations { display: flex; flex-wrap: wrap; gap: 10px 22px; line-height: 1.5; }
.paper-authors { font-size: 16px; color: #fff; }
.paper-authors > span:nth-child(1) { color: var(--author-yellow, var(--ball-yellow)); }
.paper-authors > span:nth-child(2) { color: var(--author-blue, var(--ball-blue)); }
.paper-authors > span:nth-child(3) { color: var(--author-red, var(--ball-red)); }
.paper-authors > span:nth-child(4) { color: var(--author-purple, var(--ball-purple)); }
.paper-authors > span:nth-child(5) { color: var(--author-orange, var(--ball-orange)); }
.paper-affiliations { font-size: 14px; color: #bdc7bd; }
.paper-authors > span, .paper-affiliations > span, .paper-contributions > span { white-space: nowrap; }
.paper-contributions { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 22px; max-width: none; margin: 0; color: #bdc7bd; font-size: 14px; line-height: 1.5; }
.paper-byline sup { margin-left: 2px; font-size: .7em; }
/* Numbered pool balls keep the affiliation references recognizable. */
.paper-authors .paper-author-markers,
.paper-affiliations .paper-affiliation-marker {
  position: relative;
  top: -.35em;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  margin: 0 0 0 .28em;
  font-size: 1em;
  line-height: 1;
  vertical-align: baseline;
}
.paper-affiliations .paper-affiliation-marker { top: -.12em; margin: 0 .15em 0 0; }
.paper-pool-ball {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: max(12px, .875em);
  height: max(12px, .875em);
  border-radius: 50%;
  background: radial-gradient(circle at 28% 22%, #ffffff80, transparent 55%), var(--pool-ball-color);
  box-shadow: inset -.08em -.1em .18em #00000024, inset 0 0 0 1px #00000014, 0 .05em .1em #0000001f;
}
.paper-pool-ball[data-ball="1"] { --pool-ball-color: var(--ball-yellow); }
.paper-pool-ball[data-ball="2"] { --pool-ball-color: var(--ball-blue); }
.paper-pool-ball[data-ball="3"] { --pool-ball-color: var(--ball-red); }
.paper-pool-ball[data-ball="4"] { --pool-ball-color: var(--ball-purple); }
.paper-pool-ball[data-ball="5"] { --pool-ball-color: var(--ball-orange); }
.paper-pool-ball > span {
  display: grid;
  place-items: center;
  width: 62%;
  height: 62%;
  border-radius: 50%;
  background: #f7f3e9;
  color: #232127;
  font-size: .44em;
  font-weight: 650;
  line-height: 1;
  letter-spacing: 0;
}
.paper-contribution-marker { margin-left: 1px; color: var(--lab-muted, #bdc7bd); font-size: .7em; line-height: 1; }
.paper-marker-separator { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.paper-hero { width: 100%; pointer-events: auto; border: var(--border-main); border-top: 0; color: #eeede7; }
.paper-hero-shell { width: calc(100% - 2 * var(--content-padding)); max-width: var(--lab-content-max); margin-inline: auto; }
.paper-hero-masthead { display: flex; justify-content: center; align-items: center; padding-block: 32px 8px; }
.paper-brand { display: inline-flex; flex-direction: column; align-items: center; gap: 10px; min-width: 0; color: #fff; text-align: center; }
.paper-brand-logo { display: block; width: clamp(200px, 20vw, 260px); max-width: 100%; height: auto; }
.paper-brand-caption { max-width: none; color: #bdc7bd; font-size: 16px; line-height: 1.45; }
.paper-hero-composition { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--lab-section-space); padding-block: 8px var(--lab-section-space); }
.paper-hero-identity, .paper-hero-media { min-width: 0; }
.paper-hero-identity { display: flex; flex-direction: column; align-items: center; text-align: center; }
.paper-hero-identity .paper-authors, .paper-hero-identity .paper-affiliations { justify-content: center; }
.paper-hero .paper-authors {
  --author-blue: color-mix(in srgb, var(--ball-blue) 70%, white);
  --author-red: color-mix(in srgb, var(--ball-red) 80%, white);
  --author-purple: color-mix(in srgb, var(--ball-purple) 70%, white);
}
.paper-title { max-width: 1100px; margin: 0 auto; color: #eeede7; font-size: clamp(36px, 3.7vw, 60px); line-height: 1.08; letter-spacing: -.035em; text-align: center; text-wrap: balance; }
.paper-byline { display: grid; gap: 10px; margin-top: 18px; }
.paper-video-link { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; margin-top: 24px; padding: 12px 22px; border: 1px solid var(--paper-accent); background: var(--paper-accent); color: var(--paper-accent-ink); font-size: 15px; font-weight: 500; line-height: 1.5; text-decoration: none; transition: background .2s, border-color .2s; }
.paper-video-link:hover { background: var(--paper-accent-hover); border-color: var(--paper-accent-hover); }
.paper-video-link svg { flex: 0 0 16px; }
.paper-venue { margin: 14px 0 0; color: var(--paper-accent); font-size: 14px; line-height: 1.5; }
.paper-hero a:focus-visible { outline: 2px solid #eeede7; outline-offset: 5px; }
.paper-hero-media { width: 100%; margin-inline: auto; }
.paper-film { width: 100%; margin: 0; scroll-margin-top: 80px; }
.paper-video-placeholder { position: relative; display: grid; place-items: center; width: 100%; aspect-ratio: 16 / 9; margin: 0; overflow: hidden; background: var(--lab-panel); }
.paper-hero-video { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; scroll-margin-top: 80px; border: 1px solid #ffffff26; background: radial-gradient(ellipse at 50% 35%, #ffffff06, transparent 70%), #302d32; box-shadow: none; }
.paper-hero-video > video[data-loop-video] { opacity: 1; }
.paper-video-center { display: grid; place-items: center; padding: 24px; color: #bdc7bd; font-size: 16px; line-height: 1.5; text-align: center; }

/* One continuous background and spacing rhythm join the demonstrations and film. */
.paper-video-section { background: transparent; }

@media (min-width: 1800px) {
  .paper-authors { font-size: 18px; }
}
@media (max-width: 991px) {
  .paper-title { font-size: clamp(34px, 4.8vw, 46px); }
}
@media (max-width: 479px) {
  .paper-hero-masthead { padding-block: 24px 6px; }
  .paper-brand-caption { font-size: 15px; }
  .paper-hero-composition { padding-block-start: 6px; }
  .paper-title { font-size: clamp(29px, 7.8vw, 36px); }
  .paper-authors { gap: 8px 18px; }
  .paper-affiliations { gap: 8px 16px; }
}
@media (prefers-reduced-motion: reduce) { .paper-hero a { transition: none; } }

/* Emphasis is part of the heading from the first render. */
.gap-not, .agentic-highlight { color: #e99a7c; }
.gap-not { font-weight: 600; }

.paper-authors a { color: inherit; text-decoration: none; text-underline-offset: .2em; }
.paper-authors a:hover, .paper-authors a:focus-visible { color: inherit; text-decoration: underline; }
.paper-authors a:focus-visible { outline: 1px solid currentColor; outline-offset: 4px; }