/* ==========================================================================
   NSRL PUBLIC UI — styles shared by every public section
   Path: assets/common/css/public/public-ui.css   (needs tokens.css)

   1. Section shell (font, colors, Elementor full-bleed)
   2. Eyebrow chip + section heading (one look for every section)
   3. Buttons (primary green / gold on dark, secondary outline, light outline)
   4. CTA band (.nsrl-cta) — reusable on any page
   5. Skeleton screens
   6. Scroll reveal (reveal.js adds the classes; content shows without JS)
   7. Reduced motion
   ========================================================================== */

/* 1. SECTION SHELL ---------------------------------------------------------- */
.nsrl-hero,
#nsrl-overview,
.nsrl-latest,
.nsrl-coverflow,
:where(.nsrl-rp):not(.ak),
.nsrl-cta,
.nsrl-contact {
  box-sizing: border-box;
  font-family: var(--nsrl-font-body);
  color: var(--nsrl-color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

:is(.nsrl-hero, #nsrl-overview, .nsrl-latest, .nsrl-coverflow, :where(.nsrl-rp):not(.ak), .nsrl-cta, .nsrl-contact) *,
:is(.nsrl-hero, #nsrl-overview, .nsrl-latest, .nsrl-coverflow, :where(.nsrl-rp):not(.ak), .nsrl-cta, .nsrl-contact) *::before,
:is(.nsrl-hero, #nsrl-overview, .nsrl-latest, .nsrl-coverflow, :where(.nsrl-rp):not(.ak), .nsrl-cta, .nsrl-contact) *::after {
  box-sizing: border-box;
}

/* Elementor wraps each HTML widget in a padded container; let our sections run edge to edge */
.e-con:has(> .elementor-widget-html :is(#nsrl-hero-section, #nsrl-overview, .nsrl-latest, .nsrl-coverflow, :where(.nsrl-rp):not(.ak), .nsrl-cta, .nsrl-contact)),
.e-con:has(> .e-con-inner > .elementor-widget-html :is(#nsrl-hero-section, #nsrl-overview, .nsrl-latest, .nsrl-coverflow, :where(.nsrl-rp):not(.ak), .nsrl-cta, .nsrl-contact)) {
  --padding-top: 0px;
  --padding-right: 0px;
  --padding-bottom: 0px;
  --padding-left: 0px;
  --gap: 0px;
  --row-gap: 0px;
  --column-gap: 0px;
  --content-width: 100%;
  padding: 0 !important;
}
.elementor-widget-html:has(:is(#nsrl-hero-section, #nsrl-overview, .nsrl-latest, .nsrl-coverflow, :where(.nsrl-rp):not(.ak), .nsrl-cta, .nsrl-contact)) {
  width: 100% !important;
  max-width: 100% !important;
  margin: 0 !important;
}
.elementor-widget-html:has(:is(#nsrl-hero-section, #nsrl-overview, .nsrl-latest, .nsrl-coverflow, :where(.nsrl-rp):not(.ak), .nsrl-cta, .nsrl-contact)) > .elementor-widget-container {
  margin: 0 !important;
  padding: 0 !important;
}

/* 2. EYEBROW CHIP + SECTION HEADING ----------------------------------------- */
.nsrl-coverflow .nsrl-coverflow__eyebrow,
.nsrl-latest .nsrl-latest__eyebrow,
.nsrl-rp .nsrl-rp__eyebrow,
#nsrl-overview .nsrl-ov-eyebrow,
.nsrl-cta .nsrl-cta__eyebrow,
.nsrl-contact .nsrl-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 var(--nsrl-space-5);
  padding: 6px 14px 6px 10px;
  font-family: var(--nsrl-font-body);
  font-size: var(--nsrl-fs-eyebrow);
  font-weight: var(--nsrl-fw-bold);
  line-height: 1.4;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--nsrl-color-green-900);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(11, 61, 36, 0.12);
  border-radius: var(--nsrl-radius-pill);
}
.nsrl-coverflow .nsrl-coverflow__eyebrow::before,
.nsrl-latest .nsrl-latest__eyebrow::before,
.nsrl-rp .nsrl-rp__eyebrow::before,
#nsrl-overview .nsrl-ov-eyebrow::before,
.nsrl-cta .nsrl-cta__eyebrow::before,
.nsrl-contact .nsrl-eyebrow::before {
  content: "";
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--nsrl-color-gold-500);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.22);
}

/* Eyebrow on dark bands */
.nsrl-coverflow .nsrl-coverflow__eyebrow,
.nsrl-cta .nsrl-cta__eyebrow {
  color: var(--nsrl-color-gold-300);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.16);
}

.nsrl-coverflow h2.nsrl-coverflow__heading,
.nsrl-latest h2.nsrl-latest__heading,
#nsrl-overview .nsrl-ov-title,
#nsrl-overview .nsrl-ov-title .elementor-heading-title,
.nsrl-rp h2.nsrl-rp__title-main,
.nsrl-cta h2.nsrl-cta__heading,
.nsrl-contact h2.nsrl-contact__heading {
  margin: 0;
  font-family: var(--nsrl-font-display);
  font-size: var(--nsrl-fs-h2);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--nsrl-color-heading);
  text-transform: none;
  text-wrap: balance;
  font-variation-settings: "opsz" 144;
}
:where(.nsrl-coverflow, .nsrl-latest, :where(.nsrl-rp):not(.ak), .nsrl-cta, .nsrl-contact, #nsrl-overview) :where(h1, h2) em {
  font-style: italic;
  font-weight: 400;
  color: var(--nsrl-color-teal-700);
}

/* Section lead paragraph (under a heading) */
.nsrl-section-lead {
  margin: 0;
  max-width: 46ch;
  font-family: var(--nsrl-font-body);
  font-size: var(--nsrl-fs-lead);
  line-height: var(--nsrl-lh-body);
  color: var(--nsrl-color-text);
}

/* 3. BUTTONS ---------------------------------------------------------------- */
.nsrl-btn,
.nsrl-latest__see-more,
.nsrl-rp__link,
.nsrl-contact__submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 52px;
  padding: 0.5rem 0.5rem 0.5rem 1.5rem;
  font-family: var(--nsrl-font-body);
  font-size: var(--nsrl-btn-font-size);
  font-weight: var(--nsrl-fw-bold);
  line-height: 1.2;
  letter-spacing: 0;
  text-decoration: none;
  text-transform: none;
  white-space: nowrap;
  border: 1.5px solid transparent;
  border-radius: var(--nsrl-btn-radius);
  cursor: pointer;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  transition:
    transform var(--nsrl-dur-base) var(--nsrl-ease-out),
    box-shadow var(--nsrl-dur-base) var(--nsrl-ease-out),
    background-color var(--nsrl-dur-fast) ease,
    color var(--nsrl-dur-fast) ease,
    border-color var(--nsrl-dur-fast) ease;
}
.nsrl-rp__link,
.nsrl-contact__submit { padding: 0.75rem 1.5rem; }

/* Arrow in a small circle at the end of the button */
.nsrl-btn::after,
.nsrl-latest__see-more::after {
  content: "\2192";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 15px;
  background: rgba(255, 255, 255, 0.16);
  transition: transform var(--nsrl-dur-base) var(--nsrl-ease-out), background-color var(--nsrl-dur-fast) ease;
}
.nsrl-btn:hover::after,
.nsrl-latest__see-more:hover::after { transform: translateX(3px) rotate(-45deg); }

.nsrl-btn:hover,
.nsrl-latest__see-more:hover,
.nsrl-rp__link:hover,
.nsrl-contact__submit:not(:disabled):hover { transform: translateY(-2px); }
.nsrl-btn:active,
.nsrl-latest__see-more:active,
.nsrl-rp__link:active,
.nsrl-contact__submit:not(:disabled):active { transform: translateY(0); }
.nsrl-btn:focus-visible,
.nsrl-latest__see-more:focus-visible,
.nsrl-rp__link:focus-visible,
.nsrl-contact__submit:focus-visible {
  outline: 2px solid var(--nsrl-color-accent);
  outline-offset: 3px;
}

/* PRIMARY — deep green */
html body :is(a.nsrl-btn--solid, a.nsrl-btn--primary):is(:link, :visited),
html body .nsrl-contact button.nsrl-contact__submit {
  background-color: var(--nsrl-btn-primary-bg);
  border-color: var(--nsrl-btn-primary-bg);
  color: var(--nsrl-btn-primary-text);
  text-decoration: none;
  box-shadow: 0 10px 24px -12px rgba(6, 40, 24, 0.65);
}
html body :is(a.nsrl-btn--solid, a.nsrl-btn--primary):is(:hover, :focus-visible),
html body .nsrl-contact button.nsrl-contact__submit:not(:disabled):is(:hover, :focus-visible) {
  background-color: var(--nsrl-btn-primary-bg-hover);
  border-color: var(--nsrl-btn-primary-bg-hover);
  color: var(--nsrl-btn-primary-text);
  text-decoration: none;
  box-shadow: 0 16px 30px -14px rgba(6, 40, 24, 0.7);
}
html body :is(a.nsrl-btn--solid, a.nsrl-btn--primary):active,
html body .nsrl-contact button.nsrl-contact__submit:not(:disabled):active {
  background-color: var(--nsrl-color-green-950);
  border-color: var(--nsrl-color-green-950);
  box-shadow: none;
}

/* PRIMARY on dark bands — gold */
html body :is(.nsrl-coverflow, .nsrl-cta__card) a.nsrl-btn--solid:is(:link, :visited, :hover, :focus, :active) {
  background-color: var(--nsrl-color-gold-500);
  border-color: var(--nsrl-color-gold-500);
  color: var(--nsrl-color-green-950);
  box-shadow: 0 10px 24px -12px rgba(201, 162, 39, 0.7);
}
html body :is(.nsrl-coverflow, .nsrl-cta__card) a.nsrl-btn--solid:is(:hover, :focus-visible) {
  background-color: var(--nsrl-color-gold-400);
  border-color: var(--nsrl-color-gold-400);
}
html body :is(.nsrl-coverflow, .nsrl-cta__card) a.nsrl-btn--solid::after { background: rgba(6, 40, 24, 0.12); }

/* SECONDARY — outline */
html body :is(a.nsrl-btn--outline, a.nsrl-btn--secondary, a.nsrl-latest__see-more, a.nsrl-rp__link):is(:link, :visited) {
  background-color: transparent;
  border-color: rgba(11, 61, 36, 0.28);
  color: var(--nsrl-color-green-900);
  text-decoration: none;
}
html body :is(a.nsrl-btn--outline, a.nsrl-btn--secondary, a.nsrl-latest__see-more, a.nsrl-rp__link):is(:hover, :focus-visible) {
  background-color: var(--nsrl-color-green-900);
  border-color: var(--nsrl-color-green-900);
  color: #ffffff;
  text-decoration: none;
}
html body :is(a.nsrl-btn--outline, a.nsrl-btn--secondary, a.nsrl-latest__see-more)::after { background: rgba(11, 61, 36, 0.08); }
html body :is(a.nsrl-btn--outline, a.nsrl-btn--secondary, a.nsrl-latest__see-more):is(:hover, :focus-visible)::after { background: rgba(255, 255, 255, 0.16); }

/* LIGHT OUTLINE — on dark bands */
html body a.nsrl-btn--light:is(:link, :visited) {
  background-color: transparent;
  border-color: rgba(255, 255, 255, 0.4);
  color: #ffffff;
  text-decoration: none;
}
html body a.nsrl-btn--light:is(:hover, :focus-visible) {
  background-color: #ffffff;
  border-color: #ffffff;
  color: var(--nsrl-color-green-950);
}
html body a.nsrl-btn--light:is(:hover, :focus-visible)::after { background: rgba(6, 40, 24, 0.08); }

/* 4. CTA BAND --------------------------------------------------------------- */
.nsrl-cta {
  width: 100%;
  padding: calc(var(--nsrl-section-y) * 0.6) var(--nsrl-gutter);
  background: var(--nsrl-color-surface);
}
.nsrl-cta__card {
  position: relative;
  max-width: var(--nsrl-container-wide);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 88px) clamp(24px, 6vw, 88px);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  align-items: end;
  gap: 32px 48px;
  border-radius: var(--nsrl-radius-2xl);
  overflow: hidden;
  isolation: isolate;
  color: var(--nsrl-color-on-dark);
  background:
    radial-gradient(60% 120% at 100% 0%, rgba(8, 127, 135, 0.45) 0%, rgba(8, 127, 135, 0) 60%),
    radial-gradient(50% 90% at 0% 100%, rgba(201, 162, 39, 0.22) 0%, rgba(201, 162, 39, 0) 60%),
    var(--nsrl-color-green-900);
}
.nsrl-cta__card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: -1;
  background-image: radial-gradient(rgba(255, 255, 255, 0.09) 1px, transparent 1.2px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 70%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 70%);
}
.nsrl-cta h2.nsrl-cta__heading {
  max-width: 15ch;
  color: #ffffff;
  font-size: clamp(2.25rem, 1.3rem + 3.4vw, 4.5rem);
}
.nsrl-cta h2.nsrl-cta__heading em { color: var(--nsrl-color-gold-300); }
.nsrl-cta p.nsrl-cta__lead {
  max-width: 48ch;
  margin: 20px 0 0;
  font-size: var(--nsrl-fs-lead);
  line-height: var(--nsrl-lh-body);
  color: var(--nsrl-color-on-dark-muted);
}
.nsrl-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}
@media (max-width: 860px) {
  .nsrl-cta__card { grid-template-columns: 1fr; align-items: start; }
  .nsrl-cta__actions { justify-content: flex-start; }
}
@media (max-width: 480px) {
  .nsrl-cta__card { border-radius: var(--nsrl-radius-xl); }
  .nsrl-cta__actions .nsrl-btn { width: 100%; justify-content: space-between; }
}

/* 5. SKELETON SCREENS ------------------------------------------------------- */
@keyframes nsrl-skel-sweep {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

.nsrl-skel,
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured-image,
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured-title,
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured .nsrl-latest__category,
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured .nsrl-latest__date,
#nsrl-overview:not(.is-loaded) :is(h1.nsrl-ov-title, h2.nsrl-ov-title, h3.nsrl-ov-title, .nsrl-ov-title .elementor-heading-title, [data-field="ov_title"]:is(h1, h2, h3)),
#nsrl-overview:not(.is-loaded) :is(.nsrl-ov-description, [data-field="ov_description"]) p,
.nsrl-coverflow__track:empty::before,
.nsrl-coverflow__caption-title:empty,
.nsrl-coverflow__caption-desc:empty,
.nsrl-contact__map:not(.is-loaded) {
  background-image: linear-gradient(90deg, var(--nsrl-skel-base) 25%, var(--nsrl-skel-shine) 50%, var(--nsrl-skel-base) 75%);
  background-color: var(--nsrl-skel-base);
  background-size: 200% 100%;
  animation: nsrl-skel-sweep 1.4s ease-in-out infinite;
  border-radius: var(--nsrl-radius-sm);
}

.nsrl-skel        { display: block; }
.nsrl-skel--line  { height: 14px; width: 100%; }
.nsrl-skel--short { width: 60%; }
.nsrl-skel--num   { height: 12px; width: 20px; }

/* Hero: text bars instead of the fallback copy (light background) */
.nsrl-hero:not(.is-loaded) [data-field] {
  color: transparent !important;
  text-shadow: none !important;
  background: linear-gradient(90deg, var(--nsrl-skel-base) 25%, var(--nsrl-skel-shine) 50%, var(--nsrl-skel-base) 75%) !important;
  background-size: 200% 100% !important;
  animation: nsrl-skel-sweep 1.4s ease-in-out infinite;
  border-radius: 10px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  -webkit-user-select: none;
  user-select: none;
  pointer-events: none;
}
.nsrl-hero:not(.is-loaded) .nsrl-btn [data-field] { background: none !important; color: inherit !important; animation: none; }
.nsrl-hero:not(.is-loaded) a.nsrl-btn--solid { opacity: 0.55; pointer-events: none; }

/* News & Events */
.nsrl-latest:not(.is-loaded) #nsrl-latest-list > :not(.nsrl-latest__item--skeleton) { display: none; }
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured-media,
.nsrl-latest__item--skeleton .nsrl-latest__item-image { background-color: var(--nsrl-color-sage); }
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured-title,
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured .nsrl-latest__category,
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured .nsrl-latest__date {
  color: transparent !important;
  border-color: transparent !important;
  -webkit-user-select: none;
  user-select: none;
}
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured-title { width: 75%; }
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured .nsrl-latest__category { display: inline-block; min-width: 56px; }
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured .nsrl-latest__date { display: inline-block; min-width: 84px; }
.nsrl-latest:not(.is-loaded) .nsrl-latest__featured,
.nsrl-latest:not(.is-loaded) .nsrl-latest__item { pointer-events: none; }
.nsrl-latest__item--skeleton .nsrl-latest__item-text { justify-content: center; gap: 12px; }
.nsrl-latest .nsrl-latest__item--skeleton:hover { transform: none; box-shadow: none; }

/* Overview text */
#nsrl-overview:not(.is-loaded) :is(h1.nsrl-ov-title, h2.nsrl-ov-title, h3.nsrl-ov-title, .nsrl-ov-title .elementor-heading-title, [data-field="ov_title"]:is(h1, h2, h3)) {
  color: transparent !important;
  width: 85%;
  -webkit-user-select: none;
  user-select: none;
}
#nsrl-overview:not(.is-loaded) :is(.nsrl-ov-description, [data-field="ov_description"]) p {
  color: transparent !important;
  -webkit-user-select: none;
  user-select: none;
}

/* Our Facilities (dark band): ghost card while the laboratories load */
.nsrl-coverflow {
  --nsrl-skel-base: rgba(255, 255, 255, 0.07);
  --nsrl-skel-shine: rgba(255, 255, 255, 0.16);
}
.nsrl-coverflow__track:empty::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 100%;
  transform: translateX(-50%);
  border-radius: var(--nsrl-radius-xl);
}
.nsrl-coverflow__caption-title:empty { width: 220px; height: 28px; }
.nsrl-coverflow__caption-desc:empty  { width: min(380px, 90%); height: 14px; margin-top: 10px; }

/* Research / Publications rows */
.nsrl-rp__item--skeleton {
  display: grid;
  grid-template-columns: 64px 1fr;
  align-items: center;
  padding: 30px 24px 30px 0;
}

/* Footer laboratories list (dark background) */
.nsrl-chrome-footer {
  --nsrl-skel-base: rgba(255, 255, 255, 0.1);
  --nsrl-skel-shine: rgba(255, 255, 255, 0.22);
}
.nsrl-chrome-footer__skeleton { width: 100%; padding: 7px 0; }
.nsrl-chrome-footer__skeleton:nth-child(2) .nsrl-skel { width: 80%; }
.nsrl-chrome-footer__skeleton:nth-child(3) .nsrl-skel { width: 65%; }

@media (max-width: 768px) {
  .nsrl-rp__item--skeleton { grid-template-columns: 44px 1fr; padding-top: 22px; padding-bottom: 22px; }
}
@media (max-width: 600px) {
  .nsrl-chrome-footer .nsrl-chrome-footer__col li.nsrl-chrome-footer__skeleton { max-width: 220px; margin: 0 auto; }
}

/* 6. SCROLL REVEAL ---------------------------------------------------------- */
html.nsrl-reveal-on .nsrl-reveal {
  opacity: 0;
  -webkit-transform: translate3d(0, 32px, 0);
  transform: translate3d(0, 32px, 0);
  transition:
    opacity 800ms var(--nsrl-ease-out),
    transform 800ms var(--nsrl-ease-out);
  transition-delay: calc(var(--nsrl-reveal-i, 0) * 90ms);
}
html.nsrl-reveal-on .nsrl-reveal.is-revealed {
  opacity: 1;
  -webkit-transform: none;
  transform: none;
}

@keyframes nsrl-rise-in {
  from { opacity: 0; transform: translate3d(0, 14px, 0); }
  to   { opacity: 1; transform: none; }
}

/* 7. REDUCED MOTION --------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .nsrl-skel,
  .nsrl-hero:not(.is-loaded) [data-field],
  .nsrl-latest:not(.is-loaded) *,
  #nsrl-overview:not(.is-loaded) *,
  .nsrl-coverflow__track:empty::before,
  .nsrl-coverflow__caption-title:empty,
  .nsrl-coverflow__caption-desc:empty,
  .nsrl-contact__map:not(.is-loaded) { animation: none !important; }

  html.nsrl-reveal-on .nsrl-reveal { opacity: 1; transform: none; transition: none; }

  .nsrl-btn,
  .nsrl-latest__see-more,
  .nsrl-rp__link,
  .nsrl-contact__submit,
  .nsrl-btn::after,
  .nsrl-latest__see-more::after { transition: none; }
  .nsrl-btn:hover,
  .nsrl-latest__see-more:hover,
  .nsrl-rp__link:hover,
  .nsrl-contact__submit:hover { transform: none; }
  .nsrl-btn:hover::after,
  .nsrl-latest__see-more:hover::after { transform: none; }
}