:root {
  --program-top-nav-height: 64px;
  --program-bottom-nav-height: 78px;
}

html,
body.program-booklet-body {
  margin: 0;
  height: 100%;
}

.program-booklet-body {
  background: #f8f5ee;
  color: var(--color-text-primary);
}

.program-top-nav,
.program-bottom-pager {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 20;
  background: rgba(250, 247, 242, 0.97);
  backdrop-filter: blur(8px);
}

.program-top-nav {
  top: 0;
  height: var(--program-top-nav-height);
  border-bottom: 1px solid rgba(26, 95, 109, 0.15);
}

.program-nav-content {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0 0.8rem;
}

.program-nav-home,
.program-nav-link,
.program-nav-close,
.program-nav-toggle {
  border-radius: 12px;
}

.program-nav-home,
.program-nav-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 700;
}

.program-nav-home {
  padding: 0.45rem 0.7rem;
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
}

.program-nav-home.is-active,
.program-nav-link.is-active {
  background: rgba(26, 95, 109, 0.12);
}

.program-nav-links {
  margin-left: auto;
}

.program-nav-list {
  list-style: none;
  display: flex;
  margin: 0;
  padding: 0;
  gap: 0.3rem;
}

.program-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.72rem;
  font-size: 0.88rem;
}

.program-nav-close {
  margin-left: 0.25rem;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--color-accent);
  font-size: 1.5rem;
}

.program-nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  width: 42px;
  height: 42px;
  color: var(--color-accent);
}

.program-hamburger-icon,
.program-hamburger-icon::before,
.program-hamburger-icon::after {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 99px;
  background: currentColor;
  content: "";
  position: relative;
}

.program-hamburger-icon::before {
  position: absolute;
  top: -6px;
}

.program-hamburger-icon::after {
  position: absolute;
  top: 6px;
}

.program-nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 15;
  background: rgba(0, 0, 0, 0.25);
}

.program-booklet-shell {
  height: 100dvh;
  padding-top: var(--program-top-nav-height);
  padding-bottom: var(--program-bottom-nav-height);
}

.program-booklet-stage,
.program-booklet-viewport {
  height: 100%;
}

.program-booklet-track {
  height: 100%;
  overflow: auto;
  padding: 0.8rem;
  display: grid;
  gap: 1rem;
  scroll-behavior: smooth;
}

.program-page {
  background: #fff;
  border: 1px solid rgba(26, 95, 109, 0.12);
  border-radius: 20px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.program-page__body {
  padding: 1rem 1rem 1rem;
  display: grid;
  gap: 0.8rem;
}

.program-page__lede {
  margin: 0;
  font-weight: 600;
}

.program-page__section {
  display: grid;
  gap: 0.35rem;
}

.program-page__section h3 {
  margin: 0;
  color: var(--color-accent-dark);
  font-size: 1.02rem;
}

.program-page__section p,
.program-page__note {
  margin: 0;
  line-height: 1.55;
}

.program-page__note--emphasis {
  font-style: italic;
}

.program-page__subhead {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.94rem;
}

.program-page__subhead--emphasis {
  font-weight: 600;
  color: var(--color-accent-dark);
}

.program-page__schedule-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.3rem;
}

.program-page__schedule-list li {
  display: grid;
  grid-template-columns: minmax(7.2rem, 8.6rem) 1fr;
  align-items: start;
  column-gap: 0.6rem;
  line-height: 1.45;
}

.program-page__schedule-time {
  font-weight: 600;
  color: var(--color-text-primary);
}

.program-page__schedule-item {
  color: var(--color-text-primary);
}

.program-page__art-entry {
  display: grid;
  gap: 0.4rem;
  padding: 0.75rem;
  border: 1px solid rgba(26, 95, 109, 0.12);
  border-radius: 12px;
  background: #fcfaf6;
}

.program-page__art-entry h3 {
  margin: 0;
  color: var(--color-accent-dark);
  font-size: 1.1rem;
}

.program-page__art-entry p {
  margin: 0;
  line-height: 1.6;
}

.program-page__byline {
  color: var(--color-text-secondary);
  font-style: italic;
}

.program-page__inline-figure {
  margin: 0;
  display: grid;
  gap: 0;
  border: 1px solid rgba(26, 95, 109, 0.14);
  border-radius: 14px;
  overflow: hidden;
  background: #f8f5ee;
}

.program-page__inline-figure img {
  width: 100%;
  height: auto;
  display: block;
}

.program-page__body ul {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.25rem;
}

.program-page__toc-list {
  list-style: none;
  padding-left: 0;
  gap: 0.1rem;
}

.program-page__toc-item {
  line-height: 1.2;
}

.program-page__toc-item--major {
  margin-top: 0.18rem;
}

.program-page__toc-item--major:first-child {
  margin-top: 0;
}

.program-page__toc-item--sub {
  padding-left: 1rem;
}

.program-page__toc a {
  color: var(--color-link);
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration-thickness: 0.06em;
  text-underline-offset: 0.12em;
}

.program-page__toc-item--major a {
  font-weight: 700;
}

.program-page__toc a:hover,
.program-page__toc a:focus-visible {
  color: var(--color-link-hover);
}

.program-page__toc a:focus-visible {
  outline: 2px solid var(--color-link-hover);
  outline-offset: 0.12rem;
}

.program-page__reference {
  border-top: 1px solid rgba(26, 95, 109, 0.12);
  background: #f8f5ee;
}

.program-page__reference summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-accent);
  padding: 0.6rem 0.8rem;
}

.program-page__figure {
  margin: 0;
  background: #f3efe7;
  border-top: 1px solid rgba(26, 95, 109, 0.12);
  display: grid;
}

.program-page > .program-page__figure:first-child {
  border-top: none;
}

.program-page__figure img {
  width: 100%;
  height: auto;
  display: block;
}

.program-page__caption {
  margin: 0;
  padding: 0.55rem 0.8rem 0.7rem;
  font-size: 0.78rem;
  color: var(--color-text-secondary);
}

.program-page--maps-online .program-page__body {
  gap: 0.55rem;
  height: 100%;
  grid-template-rows: auto 1fr;
  padding: 0.8rem 0.9rem;
}

.program-page--maps-online.program-page--active {
  overflow: hidden;
}

.program-page--maps-online .program-page__section {
  gap: 0.3rem;
}

.program-page--maps-online .program-page__section h3 {
  font-size: 1.22rem;
  text-align: center;
}

.program-page--maps-online .program-page__lede {
  text-align: center;
  color: var(--color-text-secondary);
  font-weight: 500;
  line-height: 1.45;
  font-size: 0.95rem;
}

.program-maps-address {
  margin: 0;
  text-align: center;
  line-height: 1.35;
}

.program-maps-address a {
  color: var(--color-accent);
  font-weight: 500;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.12rem;
}

.program-maps-address__line {
  display: block;
}

.program-maps-address__line--school {
  font-weight: 600;
}

.program-maps-gallery {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  align-content: start;
  justify-items: center;
  min-height: 0;
  overflow: hidden;
}

.program-maps-figure {
  margin: 0;
  border: 1px solid rgba(26, 95, 109, 0.16);
  border-radius: 12px;
  padding: 0.45rem;
  background: #f8f5ee;
  width: 100%;
  max-width: 100%;
  display: grid;
  gap: 0.35rem;
}

.program-map-trigger {
  width: 100%;
  border: 0;
  background: transparent;
  padding: 0;
  margin: 0;
  display: block;
  cursor: zoom-in;
}

.program-map-trigger img {
  width: 100%;
  max-height: clamp(160px, 32vh, 330px);
  height: auto;
  display: block;
  border-radius: 8px;
  margin: 0 auto;
  object-fit: contain;
  background: #fff;
}

.program-maps-figure .program-page__subhead {
  text-align: center;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.program-maps-figure .program-page__subhead--emphasis {
  font-weight: 600;
  color: var(--color-accent-dark);
}

.program-map-trigger:focus-visible {
  outline: 3px solid var(--color-link-hover);
  outline-offset: 2px;
  border-radius: 10px;
}

.program-map-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.86);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  cursor: zoom-out;
}

.program-map-overlay[hidden] {
  display: none;
}

.program-map-overlay img {
  max-width: min(96vw, 1200px);
  max-height: 96vh;
  width: auto;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}

@media (max-width: 1200px) {
  body.program-section-ready #program-pages-root:has(.program-page--maps-online.program-page--active) {
    max-width: 46rem;
  }

  .program-page--maps-online .program-maps-gallery {
    grid-template-columns: 1fr;
    gap: 0.55rem;
  }

  .program-page--maps-online .program-map-trigger img {
    max-height: clamp(120px, 19vh, 220px);
  }
}

@media (max-width: 760px) {
  .program-page--maps-online .program-page__body {
    height: auto;
    grid-template-rows: auto;
    overflow: auto;
  }

  .program-page--maps-online.program-page--active {
    overflow: auto;
  }

  .program-maps-gallery {
    grid-template-columns: 1fr;
  }

  .program-map-trigger img {
    max-height: none;
  }
}

.program-booklet-loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(248, 245, 238, 0.88);
}

.program-booklet-loading[hidden] {
  display: none;
}

.program-booklet-loading__card {
  background: #fff;
  border-radius: 14px;
  border: 1px solid rgba(26, 95, 109, 0.15);
  padding: 1rem 1.25rem;
  text-align: center;
}

.program-bottom-pager {
  bottom: 0;
  min-height: var(--program-bottom-nav-height);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 0.6rem;
  border-top: 1px solid rgba(26, 95, 109, 0.15);
  padding: 0.65rem 0.8rem;
}

.program-bottom-pager__button {
  border: 0;
  background: rgba(26, 95, 109, 0.1);
  color: var(--color-accent);
  border-radius: 12px;
  min-height: 44px;
  font-weight: 700;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0.4rem;
}

.program-bottom-pager__button:disabled {
  opacity: 0.45;
}

.program-bottom-pager__status {
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.program-bottom-pager__label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.program-bottom-pager__select {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--color-accent);
  padding: 0.15rem 0.2rem;
  cursor: pointer;
  max-width: 11rem;
}

.program-bottom-pager__select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 3px;
}

@media (max-width: 760px) {
  :root {
    --program-top-nav-height: 62px;
    --program-bottom-nav-height: 70px;
  }

  .program-nav-content {
    justify-content: flex-start;
    position: relative;
  }

  .program-nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 0;
    order: -1;
  }

  .program-nav-home {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    white-space: nowrap;
    max-width: calc(100% - 7rem);
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .program-nav-close {
    margin-left: auto;
  }

  .program-nav-links {
    display: none;
    position: fixed;
    top: var(--program-top-nav-height);
    left: 0;
    right: 0;
    background: #fff;
    padding: 0.7rem;
    z-index: 16;
    border-top: 1px solid rgba(26, 95, 109, 0.15);
  }

  .program-nav-links.program-nav-open {
    display: block;
  }

  .program-nav-list {
    flex-direction: column;
  }

  .program-nav-link {
    justify-content: flex-start;
  }

  .program-nav-label {
    display: inline;
  }

  .program-page__body {
    padding: 0 0.85rem 0.85rem;
  }
}

/* ── Section-based single-page display ── */

body.program-section-ready .program-booklet-shell {
  height: 100dvh;
  padding-top: var(--program-top-nav-height);
  padding-bottom: var(--program-bottom-nav-height);
}

body.program-section-ready .program-booklet-stage {
  height: 100%;
}

body.program-section-ready .program-booklet-viewport {
  height: 100%;
  overflow: hidden;
  padding: 0.55rem 0.65rem;
  background: #ebe6dc;
}

body.program-section-ready #program-pages-root {
  height: 100%;
  display: block;
  max-width: 36rem;
  margin: 0 auto;
  position: relative;
}

body.program-section-ready #program-pages-root:has(.program-page--maps-online.program-page--active) {
  max-width: 52rem;
}

body.program-section-ready .program-page {
  display: none;
  overflow: auto;
  background: #fff;
  border: 1px solid rgba(26, 95, 109, 0.12);
  border-radius: 16px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.07);
  min-height: 0;
}

body.program-section-ready .program-page--active {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-height: 100%;
  overflow: auto;
}

body.program-section-ready .program-page--active:has(> .program-page__figure) {
  overflow: hidden;
}

body.program-section-ready .program-page .program-page__figure {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

body.program-section-ready .program-page .program-page__figure img {
  flex: 1;
  min-height: 0;
  width: auto;
  height: 100%;
  max-width: 100%;
  object-fit: contain;
  max-height: 100%;
}

/* ── Exhibitors page 29 organization links ── */

.program-page--organization-links .program-page__body {
  flex: 1;
  min-height: 0;
}

.program-org-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1rem;
}

.program-org-links__header {
  text-align: center;
}

.program-org-links__header h2 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(1.35rem, 1.2rem + 0.8vw, 1.8rem);
  line-height: 1.2;
  color: var(--color-forest);
}

.program-org-links__header p {
  margin: 0.45rem 0 0;
  font-family: "Poppins", "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(0.95rem, 0.9rem + 0.35vw, 1.08rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-accent);
}

.program-org-links__list {
  margin: 0;
  padding: 0;
  list-style: none;
  columns: 2;
  column-gap: 1.25rem;
}

.program-org-links__item {
  break-inside: avoid;
  margin: 0 0 0.3rem;
}

.program-org-links__item a {
  color: var(--color-link);
  font-size: 0.95rem;
  line-height: 1.45;
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.15em;
}

.program-org-links__item a:hover,
.program-org-links__item a:focus-visible {
  color: var(--color-link-hover);
}

.program-org-links__item a:focus-visible {
  outline: 2px solid var(--color-link-hover);
  outline-offset: 2px;
  border-radius: 2px;
}

.program-org-links__empty {
  margin: 0;
  text-align: center;
  font-style: italic;
  color: var(--color-text-secondary);
}

@media (max-width: 680px) {
  .program-org-links__list {
    columns: 1;
  }
}

/* ── Cover layout (single-page mode) ── */

.program-cover {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding-bottom: 0.6rem;
}

.program-cover__label {
  margin: 0;
  font-family: "Poppins", "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(1.1rem, 3.4vw, 1.75rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--color-text-primary);
}

.program-cover__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  width: 100%;
}

.program-cover__art {
  width: auto;
  max-width: min(100%, 200px);
  height: auto;
  max-height: min(26dvh, 200px);
  display: block;
  object-fit: contain;
}

.program-cover__copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.4rem;
  min-width: 0;
  width: 100%;
}

.program-cover__presenter {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  font-family: "Poppins", "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.35;
  color: var(--color-text-secondary);
}

.program-cover__presenter img {
  width: 36px;
  height: auto;
  flex-shrink: 0;
}

.program-cover__presenter em {
  font-style: italic;
  font-weight: 500;
}

.program-cover__title {
  margin: 0;
  font-family: "Playfair Display", Georgia, "Times New Roman", Times, serif;
  font-size: clamp(1.55rem, 5vw, 2.55rem);
  font-weight: 700;
  line-height: 1.08;
  color: var(--color-accent);
}

.program-cover__subtitle {
  margin: 0;
  font-family: "Playfair Display", Georgia, "Times New Roman", Times, serif;
  font-size: clamp(1.05rem, 3.2vw, 1.45rem);
  font-weight: 700;
  color: var(--color-accent-dark);
}

.program-cover__details {
  margin: 0.2rem 0 0;
  font-family: "Poppins", "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--color-text-primary);
  text-align: center;
}

.program-cover__details strong {
  display: block;
  margin-bottom: 0.12rem;
}

/* Cover: fill the card without scrollbar */
body.program-section-ready .program-page--cover {
  overflow: hidden;
}

body.program-section-ready .program-page--cover .program-page__body {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0.45rem 0.7rem 0.45rem;
  container-type: size;
}

body.program-section-ready .program-page--cover .program-cover {
  flex: 1;
  min-height: 0;
  max-height: 100%;
  overflow: hidden;
  width: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: clamp(0.12rem, 0.8cqh, 0.42rem);
  height: 100%;
}

body.program-section-ready .program-page--cover .program-cover__label {
  font-size: clamp(1.3rem, 5.3cqh, 2.35rem);
  flex: 0 0 auto;
}

body.program-section-ready .program-page--cover .program-cover__visual {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}

body.program-section-ready .program-page--cover .program-cover__art {
  max-width: min(100%, 86cqw);
  max-height: 100%;
}

body.program-section-ready .program-page--cover .program-cover__title {
  font-size: clamp(1.3rem, 5.9cqh, 2.45rem);
}

body.program-section-ready .program-page--cover .program-cover__subtitle {
  font-size: clamp(1rem, 3.9cqh, 1.62rem);
}

body.program-section-ready .program-page--cover .program-cover__presenter {
  font-size: clamp(0.82rem, 2.7cqh, 1.1rem);
}

body.program-section-ready .program-page--cover .program-cover__presenter img {
  width: clamp(22px, 6.1cqh, 34px);
}

body.program-section-ready .program-page--cover .program-cover__details {
  font-size: clamp(1rem, 3.25cqh, 1.35rem);
  line-height: 1.28;
  margin: 0.1rem 0 0;
}

body.program-section-ready .program-page--cover .program-cover__copy {
  flex: 0 0 auto;
  gap: clamp(0.06rem, 0.45cqh, 0.18rem);
  padding: 0 0 0.05rem;
}

@media (max-height: 640px) {
  body.program-section-ready .program-page--cover .program-cover__label {
    font-size: clamp(1.02rem, 4.2cqh, 1.68rem);
  }
  body.program-section-ready .program-page--cover .program-cover__title {
    font-size: clamp(1.08rem, 5.2cqh, 1.9rem);
  }
  body.program-section-ready .program-page--cover .program-cover__subtitle {
    font-size: clamp(0.9rem, 3.4cqh, 1.25rem);
  }
  body.program-section-ready .program-page--cover .program-cover__presenter {
    font-size: clamp(0.74rem, 2.3cqh, 0.94rem);
  }
  body.program-section-ready .program-page--cover .program-cover__details {
    font-size: clamp(0.88rem, 2.75cqh, 1.08rem);
    line-height: 1.24;
  }
}