/* Congress listing & event detail pages */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.cong-page,
.cong-event-page {
  background: var(--hp-cream);
}

/* —— Listing hero —— */
.cong-hero {
  padding-block: calc(var(--header-height) + 2rem) 2.5rem;
  background: linear-gradient(165deg, var(--hp-ink) 0%, #1a2838 55%, var(--hp-ink-2) 100%);
  color: #fff;
}

.cong-hero .blog-breadcrumb a,
.cong-hero .blog-breadcrumb li {
  color: rgba(255, 255, 255, 0.75);
}

.cong-hero .blog-breadcrumb a:hover {
  color: #fff;
}

.cong-hero .blog-breadcrumb li:not(:last-child)::after {
  color: rgba(255, 255, 255, 0.4);
}

.cong-hero__label {
  font-family: var(--hp-sans);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hp-teal);
  margin: 0 0 0.75rem;
}

.cong-hero h1 {
  font-size: clamp(1.875rem, 5vw, 2.75rem);
  line-height: 1.12;
  color: #fff;
  max-width: 22ch;
  margin: 0 0 1rem;
}

.cong-hero__lead {
  font-family: var(--hp-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.82);
  max-width: 40rem;
  margin: 0 0 1rem;
}

.cong-hero__meta {
  font-family: var(--hp-sans);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}

.cong-intro {
  padding-block: 2rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.cong-intro p {
  font-family: var(--hp-sans);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--hp-ink-2);
  max-width: 48rem;
  margin: 0;
}

/* —— Toolbar —— */
.cong-toolbar {
  position: sticky;
  top: var(--header-height);
  z-index: 20;
  background: rgba(250, 248, 244, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  padding-block: 0.875rem;
}

.cong-toolbar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
}

.cong-search {
  flex: 1 1 14rem;
  min-width: 0;
}

.cong-search input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-family: var(--hp-sans);
  font-size: 0.875rem;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: var(--radius-md);
  background: #fff;
  color: var(--hp-ink);
}

.cong-search input:focus {
  outline: 2px solid var(--hp-teal);
  outline-offset: 1px;
  border-color: var(--hp-teal);
}

.cong-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cong-filters select {
  padding: 0.625rem 2rem 0.625rem 0.75rem;
  font-family: var(--hp-sans);
  font-size: 0.875rem;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: var(--radius-md);
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 8L1 3h10z'/%3E%3C/svg%3E") no-repeat right 0.625rem center;
  appearance: none;
  color: var(--hp-ink);
  cursor: pointer;
}

.cong-count {
  font-family: var(--hp-sans);
  font-size: 0.8125rem;
  color: var(--hp-ink-2);
  white-space: nowrap;
}

/* —— Grid cards —— */
.cong-list {
  padding-block: 2.5rem 3.5rem;
}

.cong-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .cong-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cong-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.cong-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cong-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.cong-card__media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--hp-ink);
}

.cong-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.cong-card:hover .cong-card__media img {
  transform: scale(1.04);
}

.cong-card__body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cong-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem 0.75rem;
  font-family: var(--hp-sans);
  font-size: 0.75rem;
  color: var(--hp-ink-2);
}

.cong-card__type {
  font-weight: 600;
  color: var(--hp-teal);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.cong-card__title {
  font-size: 1.0625rem;
  line-height: 1.35;
  color: var(--hp-ink);
  margin: 0;
  font-weight: 600;
}

.cong-card__excerpt {
  font-family: var(--hp-sans);
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--hp-ink-2);
  margin: 0;
  flex: 1;
}

.cong-card__footer {
  font-family: var(--hp-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--hp-teal);
  margin-top: 0.5rem;
}

.cong-empty,
.cong-loading {
  font-family: var(--hp-sans);
  font-size: 0.9375rem;
  color: var(--hp-ink-2);
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem 1rem;
}

/* —— Event detail page —— */
.cong-event-hero {
  padding-block: calc(var(--header-height) + 2rem) 2.5rem;
  background: linear-gradient(165deg, var(--hp-ink) 0%, #1a2838 55%, var(--hp-ink-2) 100%);
  color: #fff;
}

.cong-event-hero .blog-breadcrumb a,
.cong-event-hero .blog-breadcrumb li {
  color: rgba(255, 255, 255, 0.75);
}

.cong-event-hero .blog-breadcrumb a:hover {
  color: #fff;
}

.cong-event-hero .blog-breadcrumb li:not(:last-child)::after {
  color: rgba(255, 255, 255, 0.4);
}

.cong-event-hero__type {
  font-family: var(--hp-sans);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hp-teal);
  margin: 0 0 0.75rem;
}

.cong-event-hero h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.5rem);
  line-height: 1.15;
  color: #fff;
  max-width: 28ch;
  margin: 0 0 0.75rem;
}

.cong-event-hero__subtitle {
  font-family: var(--hp-sans);
  font-size: 1.0625rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.85);
  max-width: 42rem;
  margin: 0 0 1.25rem;
}

.cong-event-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  font-family: var(--hp-sans);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
  list-style: none;
  padding: 0;
}

.cong-event-hero__facts li {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.cong-event-hero__facts strong {
  color: #fff;
}

.cong-event-cover {
  margin-block: -1.5rem 0;
  position: relative;
  z-index: 2;
}

.cong-event-cover img {
  width: 100%;
  max-height: 28rem;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  display: block;
}

.cong-event-content {
  padding-block: 2.5rem 3rem;
}

.cong-event-summary {
  font-family: var(--hp-sans);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--hp-ink);
  max-width: 48rem;
  margin: 0 0 2.5rem;
}

.cong-event-section {
  margin-bottom: 2rem;
  max-width: 48rem;
}

.cong-event-section h2 {
  font-size: 1.375rem;
  color: var(--hp-ink);
  margin: 0 0 1rem;
}

.cong-event-section p {
  font-family: var(--hp-sans);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--hp-ink-2);
  margin: 0 0 1rem;
}

.cong-event-section p:last-child {
  margin-bottom: 0;
}

.cong-event-organizers {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 0, 0, 0.06);
  max-width: 48rem;
}

.cong-event-organizers h3 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--hp-ink-2);
  margin: 0 0 0.75rem;
}

.cong-event-organizers ul {
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--hp-sans);
  font-size: 0.9375rem;
  color: var(--hp-ink);
}

.cong-event-organizers li + li {
  margin-top: 0.375rem;
}

/* —— Event gallery —— */
.cong-event-gallery {
  padding-block: 0 3.5rem;
}

.cong-event-gallery h2 {
  font-size: 1.5rem;
  color: var(--hp-ink);
  margin: 0 0 1.5rem;
}

.cong-event-gallery__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .cong-event-gallery__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
}

@media (min-width: 1024px) {
  .cong-event-gallery__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

.cong-event-gallery__item {
  display: block;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.cong-event-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.cong-event-gallery__item:hover img {
  transform: scale(1.05);
}

.cong-event__loading,
.cong-event__error {
  padding-block: 4rem;
  font-family: var(--hp-sans);
  text-align: center;
}

.cong-event__error h1 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.skeleton-cong-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.skeleton-cong-card__media {
  aspect-ratio: 16 / 10;
}

.skeleton-cong-card__body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* —— Event photo slideshow —— */
.cong-slideshow {
  padding-block: 0 2rem;
  margin-top: -0.5rem;
}

.cong-slideshow__frame {
  position: relative;
  background: var(--hp-ink);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.cong-slideshow__viewport {
  position: relative;
  aspect-ratio: 16 / 9;
  max-height: 32rem;
  margin: 0 auto;
}

.cong-slideshow__figure {
  margin: 0;
  height: 100%;
  cursor: zoom-in;
}

.cong-slideshow__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.25s ease;
}

.cong-slideshow__figure img.is-fading {
  opacity: 0.4;
}

.cong-slideshow__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 2.5rem 1rem 1rem;
  font-family: var(--hp-sans);
  font-size: 0.875rem;
  line-height: 1.45;
  color: #fff;
  background: linear-gradient(to top, rgba(7, 11, 16, 0.88) 0%, transparent 100%);
  pointer-events: none;
}

.cong-slideshow__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.75rem;
  height: 2.75rem;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--hp-ink);
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0 0.1rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transition: background 0.2s ease, transform 0.2s ease;
}

.cong-slideshow__nav:hover,
.cong-slideshow__nav:focus-visible {
  background: #fff;
  transform: translateY(-50%) scale(1.05);
}

.cong-slideshow__nav--prev {
  left: 0.75rem;
}

.cong-slideshow__nav--next {
  right: 0.75rem;
}

.cong-slideshow__nav[hidden] {
  display: none !important;
}

.cong-slideshow__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.875rem;
  font-family: var(--hp-sans);
  font-size: 0.8125rem;
  color: var(--hp-ink-2);
}

.cong-slideshow__counter {
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--hp-ink);
}

.cong-slideshow__hint {
  color: var(--hp-ink-2);
}

.cong-slideshow__dots {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.375rem;
  margin-top: 0.875rem;
}

.cong-slideshow__dot {
  width: 0.5rem;
  height: 0.5rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.18);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.cong-slideshow__dot.is-active {
  background: var(--hp-teal);
  transform: scale(1.2);
}

.cong-slideshow__dot:hover,
.cong-slideshow__dot:focus-visible {
  background: var(--hp-teal);
}

@media (min-width: 768px) {
  .cong-slideshow__nav--prev {
    left: 1.25rem;
  }

  .cong-slideshow__nav--next {
    right: 1.25rem;
  }

  .cong-slideshow__caption {
    padding: 3rem 1.5rem 1.25rem;
    font-size: 0.9375rem;
  }
}

/* Lightbox (used by congress event galleries) */
.giv-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.giv-lightbox[hidden] {
  display: none !important;
}

.giv-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 11, 16, 0.92);
  cursor: zoom-out;
}

.giv-lightbox__panel {
  position: relative;
  z-index: 1;
  max-width: min(1100px, 96vw);
  max-height: 92vh;
  width: 100%;
}

.giv-lightbox__close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
}

.giv-lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.75rem;
  height: 2.75rem;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0 0.15rem;
  transition: background 0.2s ease;
}

.giv-lightbox__nav:hover,
.giv-lightbox__nav:focus-visible {
  background: rgba(255, 255, 255, 0.28);
}

.giv-lightbox__nav--prev {
  left: -0.25rem;
}

.giv-lightbox__nav--next {
  right: -0.25rem;
}

.giv-lightbox__nav[hidden] {
  display: none !important;
}

@media (min-width: 768px) {
  .giv-lightbox__nav--prev {
    left: -3.5rem;
  }

  .giv-lightbox__nav--next {
    right: -3.5rem;
  }
}

.giv-lightbox__figure {
  margin: 0;
}

.giv-lightbox__img {
  display: block;
  max-width: 100%;
  max-height: calc(92vh - 3rem);
  width: auto;
  height: auto;
  margin: 0 auto;
  border-radius: 0.5rem;
  object-fit: contain;
}

.giv-lightbox__caption {
  margin-top: 0.75rem;
  text-align: center;
  font-family: var(--hp-sans);
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.85);
}

.giv-lightbox__counter {
  margin: 0.35rem 0 0;
  text-align: center;
  font-family: var(--hp-sans);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

.giv-lightbox__counter[hidden] {
  display: none !important;
}

body.lightbox-open {
  overflow: hidden;
}