/* ============================================================
   Festival Program — Mobile-First Styles
   Editorial booklet aesthetic: warm earth tones, bold typography,
   generous white space, coral energy accents
   ============================================================ */

/* ---- Layout Foundation ---- */

.program-body {
  min-height: 100vh;
  background-color: var(--color-bg-cream);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---- Fixed Top Nav ---- */
/* Light navbar: globe on cream, teal links, gradient accent border for contrast and visual interest */

.program-top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--color-bg-cream);
  box-shadow: 0 2px 12px rgba(26, 95, 109, 0.08);
  z-index: 1000;
  height: 64px;
}

.program-top-nav::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-light) 45%, var(--color-golden) 75%, var(--color-coral) 100%);
}

.program-nav-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0 var(--spacing-md);
  height: 100%;
}

/* Home link: "Festival" returns to main site */
.program-nav-home {
  flex-shrink: 0;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  padding: 0.375rem 0.5rem;
  border-radius: 6px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.program-nav-home .fa-icon {
  margin-right: 0.35rem;
  font-size: 0.95em;
  vertical-align: -0.05em;
}

.program-nav-home:hover {
  background-color: var(--color-nav-hover);
  color: var(--color-accent-dark);
}

.program-nav-home:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.program-nav-links {
  flex: 1;
  min-width: 0;
}

.program-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.25rem;
  justify-content: flex-end;
}

.program-nav-sep {
  height: 1px;
  background: rgba(26, 95, 109, 0.15);
  margin: var(--spacing-xs) 0;
  list-style: none;
}

.program-nav-link {
  display: inline-block;
  padding: 0.375rem 0.5rem;
  font-family: 'Poppins', sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  border-radius: 6px;
  transition: background-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.program-nav-link .fa-icon {
  margin-right: var(--spacing-sm);
  font-size: 1rem;
}

/* Schedule link: "Schedule" in top bar, "Festival Schedule" in dropdown */
.program-nav-label--short {
  display: none;
}

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

@media (min-width: 640px) {
  /* Home and separator only in dropdown; hide in icon-only and icon+label navbar */
  .program-nav-list li:first-child,
  .program-nav-list li:nth-child(2) {
    display: none;
  }

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

  .program-nav-label--long {
    display: none;
  }
}

.program-nav-link:hover {
  background-color: var(--color-nav-hover);
  color: var(--color-accent-dark);
}

.program-nav-link:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.program-nav-link:focus:not(:focus-visible) {
  outline: none;
}

.program-nav-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Close button: return to website home */
.program-nav-close {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  font-size: 1.5rem;
  line-height: 1;
  font-weight: 300;
  color: var(--color-accent);
  text-decoration: none;
  border-radius: 6px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.program-nav-close:hover {
  background-color: var(--color-nav-hover);
  color: var(--color-accent-dark);
}

.program-nav-close:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Current page highlight (section links) */
.program-body.program-page-schedule a.program-nav-link[href="/program/schedule.html"],
.program-body.program-page-directions a.program-nav-link[href="/program/directions.html"],
.program-body.program-page-directory a.program-nav-link[href="/program/directory.html"],
.program-body.program-page-earthday a.program-nav-link[href="/program/earthday.html"] {
  background-color: rgba(26, 95, 109, 0.1);
  color: var(--color-accent-dark);
  font-weight: 600;
}

/* Welcome page: Festival link is active */
.program-body.program-page-welcome .program-nav-home {
  background-color: rgba(26, 95, 109, 0.1);
  color: var(--color-accent-dark);
  font-weight: 700;
}

/* ---- Main Content ---- */

.program-content {
  padding-top: 64px;
}

/* ---- Sections ---- */

.program-section {
  padding: var(--spacing-xl) var(--spacing-md);
}

.program-section-inner {
  max-width: 600px;
  margin: 0 auto;
}

/* Decorative line above section titles */
.program-section-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--color-accent);
  text-align: center;
  margin: 0 0 var(--spacing-xs);
  line-height: 1.2;
}

.program-section-subtitle {
  font-family: 'Poppins', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-align: center;
  margin: 0 0 var(--spacing-lg);
  letter-spacing: 0.02em;
}

.program-section-divider {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-coral), var(--color-golden));
  border-radius: 2px;
  margin: 0 auto var(--spacing-lg);
}

.program-section p {
  font-family: 'Poppins', sans-serif;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-md);
}

/* ---- Hero / Cover ---- */

.program-hero {
  height: calc(100dvh - 64px);
  min-height: 0;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem var(--spacing-md) var(--spacing-md);
  background:
    radial-gradient(ellipse at 30% 20%, rgba(244, 126, 96, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 80%, rgba(26, 95, 109, 0.05) 0%, transparent 60%),
    linear-gradient(180deg, var(--color-bg-warm) 0%, var(--color-bg-cream) 40%, #ffffff 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Subtle texture overlay */
.program-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%231a5f6d' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.program-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 480px;
  max-height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

.program-hero-org {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--spacing-xs);
  flex-shrink: 0;
}

.program-hero-owl {
  width: 48px;
  height: 48px;
}

.program-hero-presents {
  font-family: 'Poppins', sans-serif;
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
}

.program-hero-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--color-forest);
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 var(--spacing-xs);
  flex-shrink: 0;
}

.program-hero-location {
  display: block;
  font-size: 0.85em;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: none;
}

.program-hero-globe-details {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: var(--spacing-xs);
  flex-shrink: 1;
  min-height: 0;
}

.program-hero-globe {
  width: auto;
  max-width: 260px;
  max-height: min(38vh, 260px);
  height: auto;
  margin: 0 auto;
  display: block;
  object-fit: contain;
  flex-shrink: 1;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.1));
}

.program-hero-details {
  margin-top: var(--spacing-xs);
  flex-shrink: 0;
}

.program-hero-date {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
}

.program-hero-time {
  font-family: 'Poppins', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
}

.program-hero-venue {
  font-family: 'Poppins', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.program-hero-address {
  font-family: 'Poppins', sans-serif;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.program-hero-admission {
  display: inline-block;
  font-family: 'Poppins', sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-coral);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.375rem 1rem;
  border: 2px solid var(--color-coral);
  border-radius: 100px;
  margin-top: var(--spacing-xs);
}

.program-hero-tagline {
  margin-top: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.program-hero-tagline-line {
  flex: 1;
  max-width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-coral));
}

.program-hero-tagline-line:last-child {
  background: linear-gradient(90deg, var(--color-coral), transparent);
}

.program-hero-tagline-text {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-coral);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* Hero columns: stack on small screens */
.program-hero-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
}

.program-hero-poster {
  order: 1;
}

.program-hero-nav {
  order: 2;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
  width: 100%;
  max-width: 480px;
}

.program-hero-panel {
  display: block;
  padding: 0.75rem 1rem;
  font-family: 'Poppins', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  text-align: center;
  background: var(--color-card-bg);
  border: 2px solid rgba(26, 95, 109, 0.15);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.program-hero-panel:hover {
  background: rgba(26, 95, 109, 0.06);
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  box-shadow: var(--shadow-lg);
}

.program-hero-panel:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Current page highlight for hero panels */
.program-body.program-page-welcome .program-hero-panel[href="#program-welcome"],
.program-body.program-page-welcome .program-hero-panel[href="/program/index.html"],
.program-body.program-page-schedule .program-hero-panel[href="/program/schedule.html"],
.program-body.program-page-directions .program-hero-panel[href="/program/directions.html"],
.program-body.program-page-directory .program-hero-panel[href="/program/directory.html"],
.program-body.program-page-earthday .program-hero-panel[href="/program/earthday.html"] {
  background-color: rgba(26, 95, 109, 0.1);
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  font-weight: 600;
}

/* ---- Welcome (full-screen on index, screen 2) ---- */

.program-welcome-fullscreen {
  min-height: 100dvh;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-md);
}

.program-welcome-inner {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.program-welcome-message .program-section-title {
  text-align: center;
}

.program-welcome-message .program-section-divider {
  margin-left: auto;
  margin-right: auto;
}

.program-welcome-fullscreen .program-section-inner {
  width: 100%;
}

/* ---- Welcome / Logistics ---- */

.program-logistics {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.program-logistics-item {
  background: var(--color-card-bg);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.program-logistics-item strong {
  font-family: 'Poppins', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.program-logistics-item span {
  font-family: 'Poppins', sans-serif;
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  line-height: 1.5;
}

.program-logistics-item .btn-link {
  align-self: flex-start;
  margin-top: 0.25rem;
}

.program-profit-note {
  font-family: 'Poppins', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-forest);
  text-align: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(45, 80, 22, 0.05);
  border-radius: 8px;
  border-left: 3px solid var(--color-forest-light);
}

/* ---- Regional Transportation Resources (Getting There) ---- */

.program-transport-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
  margin: var(--spacing-xl) 0 0;
  line-height: 1.2;
}

.program-transport-divider {
  margin: var(--spacing-sm) 0 var(--spacing-md);
}

.program-transport-intro {
  margin-bottom: var(--spacing-lg);
}

.program-transport-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.program-transport-card {
  background: var(--color-card-bg);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow);
  border-left: 4px solid var(--color-accent-light);
}

.program-transport-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Poppins', sans-serif;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

.program-transport-card__link .fa-icon {
  flex-shrink: 0;
  font-size: 1.125rem;
  color: var(--color-coral);
}

.program-transport-card__link:hover,
.program-transport-card__link:focus-visible {
  color: var(--color-accent-dark);
}

.program-transport-card__link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.program-transport-card__desc {
  font-family: 'Poppins', sans-serif;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
  margin: 0.5rem 0 0 1.75rem;
}

/* ---- Schedule Timeline ---- */

.program-event-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.program-event-item {
  position: relative;
  background: var(--color-card-bg);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  padding-left: calc(var(--spacing-md) + 4px);
  box-shadow: var(--shadow);
  border-left: 4px solid var(--color-coral);
}

.program-event-time {
  font-family: 'Poppins', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-coral);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.program-event-item h3 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 0.375rem;
  line-height: 1.3;
}

.program-event-item p {
  font-family: 'Poppins', sans-serif;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
  margin: 0 0 0.25rem;
}

.program-event-item p:last-child {
  margin-bottom: 0;
}

.program-event-presenter {
  font-style: italic;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.program-schedule-empty {
  text-align: center;
  padding: var(--spacing-xl);
  font-style: italic;
  color: var(--color-text-secondary);
}

/* ---- Exhibitor Directory ---- */

.program-exhibitor-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* Featured exhibitor card */
.program-exhibitor-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  background: var(--color-card-bg);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease;
}

.program-exhibitor-card:hover {
  box-shadow: var(--shadow-lg);
}

.program-exhibitor-card h3 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 0.375rem;
  line-height: 1.3;
  min-width: 0;
  overflow-wrap: break-word;
}

.program-exhibitor-card p {
  font-size: 0.8125rem;
  line-height: 1.55;
  margin: 0 0 0.375rem;
  min-width: 0;
  overflow-wrap: break-word;
}

.program-exhibitor-card p:last-child {
  margin-bottom: 0;
}

.program-exhibitor-activity {
  font-family: 'Poppins', sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-forest);
  background: rgba(45, 80, 22, 0.06);
  padding: 0.375rem 0.625rem;
  border-radius: 6px;
  margin-top: 0.375rem;
  display: block;
  min-width: 0;
  max-width: 100%;
  overflow-wrap: break-word;
}

.program-exhibitor-website {
  font-family: 'Poppins', sans-serif;
  font-size: 0.8125rem;
  color: var(--color-link);
  text-decoration: none;
  font-weight: 500;
  min-width: 0;
  overflow-wrap: break-word;
  word-break: break-all;
}

.program-exhibitor-website:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

/* Compact exhibitor listing */
.program-exhibitor-compact {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid rgba(26, 95, 109, 0.08);
}

.program-exhibitor-compact:last-child {
  border-bottom: none;
}

.program-exhibitor-compact-name {
  font-family: 'Poppins', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
  flex-shrink: 0;
}

.program-exhibitor-compact-desc {
  font-family: 'Poppins', sans-serif;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  flex: 1;
  min-width: 0;
  overflow-wrap: break-word;
}

/* ---- Sponsor Directory ---- */

.program-sponsor-tier {
  margin-bottom: var(--spacing-xl);
}

.program-sponsor-tier:last-of-type {
  margin-bottom: 0;
}

.program-sponsor-tier h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 var(--spacing-sm);
  padding-bottom: 0.375rem;
  border-bottom: 2px solid var(--color-accent);
}

.program-sponsor-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm);
}

.program-sponsor-card {
  background: var(--color-card-bg);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow);
}

.program-sponsor-card h4 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 0.25rem;
}

.program-sponsor-card .sponsor-category-name {
  font-family: 'Poppins', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-golden);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.375rem;
}

.program-sponsor-card p {
  font-size: 0.8125rem;
  line-height: 1.55;
  margin: 0 0 0.375rem;
}

.program-sponsor-link {
  font-family: 'Poppins', sans-serif;
  font-size: 0.8125rem;
  color: var(--color-link);
  text-decoration: none;
  font-weight: 500;
}

.program-sponsor-link:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

.program-sponsor-prize-value {
  font-family: 'Poppins', sans-serif;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-coral);
}

.program-sponsor-cta {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* ---- Ad Slots ---- */

.program-ad-slot {
  /* Empty slots collapse */
}

.program-ad-slot:empty {
  display: none;
}

/* Shared ad base */
.program-ad {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.program-ad-label {
  font-family: 'Poppins', sans-serif;
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.5;
  margin-bottom: var(--spacing-xs);
}

.program-ad-sponsor {
  font-family: 'Poppins', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--spacing-xs);
}

.program-ad-headline {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-sm);
  line-height: 1.2;
}

.program-ad-body {
  font-family: 'Poppins', sans-serif;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0 0 var(--spacing-md);
}

.program-ad-image {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
  object-fit: cover;
}

.program-ad-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 1.5rem;
  font-family: 'Poppins', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--color-accent);
  border: none;
  border-radius: 100px;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}

.program-ad-cta:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26, 95, 109, 0.3);
}

/* Back Cover Ad */
.program-ad--back-cover {
  min-height: 100vh;
  min-height: 100dvh;
  padding: var(--spacing-xl) var(--spacing-lg);
  background:
    radial-gradient(ellipse at 50% 50%, rgba(26, 95, 109, 0.04) 0%, transparent 70%),
    linear-gradient(180deg, #ffffff 0%, var(--color-bg-cream) 100%);
  border-top: 4px solid var(--color-accent);
}

.program-ad--back-cover .program-ad-headline {
  font-size: 1.75rem;
}

.program-ad--back-cover .program-ad-body {
  font-size: 1rem;
  max-width: 480px;
}

.program-ad--back-cover .program-ad-image {
  max-width: 320px;
}

/* Full Screen Ad */
.program-ad--full-screen {
  min-height: 80vh;
  padding: var(--spacing-xl) var(--spacing-lg);
  background:
    linear-gradient(180deg, var(--color-bg-warm) 0%, #ffffff 50%, var(--color-bg-cream) 100%);
  border-top: 1px solid rgba(26, 95, 109, 0.08);
  border-bottom: 1px solid rgba(26, 95, 109, 0.08);
}

.program-ad--full-screen .program-ad-headline {
  font-size: 1.5rem;
}

.program-ad--full-screen .program-ad-body {
  font-size: 0.9375rem;
  max-width: 440px;
}

/* Half Screen Ad */
.program-ad--half-screen {
  min-height: 50vh;
  padding: var(--spacing-xl) var(--spacing-md);
  background: var(--color-card-bg);
  border-top: 1px solid rgba(26, 95, 109, 0.08);
  border-bottom: 1px solid rgba(26, 95, 109, 0.08);
}

.program-ad--half-screen .program-ad-headline {
  font-size: 1.25rem;
}

.program-ad--half-screen .program-ad-body {
  font-size: 0.875rem;
  max-width: 400px;
}

/* Quarter Screen Ad */
.program-ad--quarter-screen {
  padding: var(--spacing-lg) var(--spacing-md);
  margin: var(--spacing-md) auto;
  max-width: 600px;
  background: rgba(26, 95, 109, 0.03);
  border: 1px solid rgba(26, 95, 109, 0.1);
  border-radius: var(--border-radius);
}

.program-ad--quarter-screen .program-ad-headline {
  font-size: 1rem;
}

.program-ad--quarter-screen .program-ad-body {
  font-size: 0.8125rem;
  max-width: 360px;
}

.program-ad--quarter-screen .program-ad-image {
  max-width: 200px;
}

/* Exhibit Listing Ad */
.program-ad--exhibit-listing {
  flex-direction: row;
  text-align: left;
  align-items: flex-start;
  padding: var(--spacing-md);
  margin: var(--spacing-sm) 0;
  background: var(--color-card-bg);
  border: 2px solid var(--color-accent);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  gap: var(--spacing-sm);
}

.program-ad--exhibit-listing .program-ad-content {
  flex: 1;
  min-width: 0;
}

.program-ad--exhibit-listing .program-ad-sponsor {
  margin-bottom: 0.125rem;
  color: var(--color-accent);
  font-size: 0.8125rem;
}

.program-ad--exhibit-listing .program-ad-headline {
  font-family: 'Poppins', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.program-ad--exhibit-listing .program-ad-body {
  font-size: 0.8125rem;
  margin-bottom: 0.375rem;
}

.program-ad--exhibit-listing .program-ad-cta {
  padding: 0.375rem 1rem;
  font-size: 0.8125rem;
  border-radius: 6px;
}

/* Line Listing Ad */
.program-ad--line-listing {
  flex-direction: row;
  text-align: left;
  justify-content: flex-start;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid rgba(26, 95, 109, 0.08);
  background: transparent;
}

.program-ad--line-listing .program-ad-sponsor {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0;
  text-transform: none;
  letter-spacing: 0;
  flex-shrink: 0;
}

.program-ad--line-listing .program-ad-body {
  font-size: 0.8125rem;
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}

.program-ad--line-listing .program-ad-cta {
  background: none;
  color: var(--color-link);
  padding: 0;
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: 0;
  flex-shrink: 0;
}

.program-ad--line-listing .program-ad-cta:hover {
  background: none;
  color: var(--color-link-hover);
  text-decoration: underline;
  transform: none;
  box-shadow: none;
}

/* ---- Closing Section ---- */

.program-closing {
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 80%, rgba(45, 80, 22, 0.04) 0%, transparent 60%),
    var(--color-bg-cream);
  padding-bottom: calc(var(--spacing-xl) * 2);
}

.program-closing-cta {
  margin: var(--spacing-lg) 0;
}

.program-closing-org {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(26, 95, 109, 0.1);
}

.program-closing-owl {
  width: 40px;
  height: 40px;
  opacity: 0.7;
}

.program-closing-org p {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.program-closing-org a {
  color: var(--color-link);
  text-decoration: none;
  font-weight: 500;
}

.program-closing-org a:hover {
  text-decoration: underline;
}

/* ---- Animations ---- */

@keyframes programFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes programSlideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll reveal animation */
.program-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.program-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Tablet (768px+) ---- */

@media (min-width: 768px) {
  .program-top-nav {
    height: 70px;
  }

  .program-content {
    padding-top: 70px;
  }

  .program-hero {
    height: calc(100dvh - 70px);
  }

  .program-nav-home {
    font-size: 1.375rem;
  }

  .program-nav-link {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }

  .program-section-inner {
    max-width: 680px;
  }

  .program-section-title {
    font-size: 2rem;
  }

  .program-hero-title {
    font-size: 2.125rem;
  }

  .program-hero-globe {
    max-width: 300px;
    max-height: min(40vh, 300px);
  }

  .program-hero-date {
    font-size: 1.5rem;
  }

  .program-hero-admission {
    font-size: 1rem;
  }

  .program-logistics {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .program-logistics-item {
    flex: 1;
    min-width: 200px;
  }

  .program-transport-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .program-sponsor-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Half screen ad: side-by-side on tablet */
  .program-ad--half-screen {
    flex-direction: row;
    text-align: left;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .program-ad--half-screen .program-ad-image {
    max-width: 240px;
    flex-shrink: 0;
  }

  .program-ad--half-screen .program-ad-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .program-ad--back-cover .program-ad-headline {
    font-size: 2.25rem;
  }

  .program-ad--full-screen .program-ad-headline {
    font-size: 1.875rem;
  }
}

/* ---- Desktop (1024px+) ---- */

@media (min-width: 1024px) {
  .program-section-inner {
    max-width: 800px;
  }

  .program-section-title {
    font-size: 2.25rem;
  }

  /* Two-column hero: poster left (wider), section nav right (narrower); fit in one viewport */
  .program-hero {
    padding: 1rem var(--spacing-md);
  }

  .program-hero-inner {
    display: grid;
    grid-template-columns: 1.4fr 0.6fr;
    gap: var(--spacing-lg);
    align-items: center;
    max-width: 1100px;
    width: 100%;
    max-height: 100%;
    min-height: 0;
  }

  .program-hero-poster {
    order: unset;
    min-height: 0;
    overflow: hidden;
  }

  .program-hero-globe-details {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: 0.25rem;
    flex-shrink: 1;
    min-height: 0;
  }

  .program-hero-globe {
    max-width: 280px;
    max-height: min(36vh, 280px);
    flex-shrink: 0;
  }

  .program-hero-details {
    margin-top: 0;
    text-align: left;
    flex-shrink: 0;
  }

  .program-hero-date {
    font-size: 1.25rem;
    margin-bottom: 0.125rem;
  }

  .program-hero-time {
    font-size: 0.875rem;
    margin-bottom: 0.125rem;
  }

  .program-hero-venue {
    font-size: 0.875rem;
  }

  .program-hero-address {
    font-size: 0.8125rem;
    margin-bottom: 0.25rem;
  }

  .program-hero-admission {
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
    margin-top: 0.25rem;
  }

  .program-hero-tagline {
    margin-top: 0.5rem;
  }

  .program-hero-tagline-text {
    font-size: 0.875rem;
  }

  .program-hero-nav {
    order: unset;
    margin-top: 0;
    max-width: none;
  }

  .program-hero-panel {
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    text-align: left;
  }

  .program-hero-title {
    font-size: 2.25rem;
  }

  /* Welcome screen 2: two columns — message left, back-cover ad right */
  .program-welcome-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: stretch;
    max-width: 1100px;
    width: 100%;
    min-height: calc(100dvh - 70px);
    min-height: calc(100vh - 70px);
  }

  .program-welcome-message {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-lg) 0;
  }

  .program-welcome-message .program-section-title {
    text-align: left;
  }

  .program-welcome-message .program-section-divider {
    margin-left: 0;
    margin-right: 0;
  }

  .program-ad-slot--welcome {
    display: flex;
    min-height: 0;
  }

  .program-ad-slot--welcome .program-ad--back-cover {
    flex: 1;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
  }

  .program-ad-slot--welcome .program-ad--back-cover .program-ad-body {
    max-width: 100%;
  }

  .program-sponsor-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .program-exhibitor-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-md);
  }

  /* Full-width items span the grid */
  .program-ad--exhibit-listing,
  .program-ad--line-listing,
  .program-ad--quarter-screen {
    grid-column: 1 / -1;
  }

  .program-ad--back-cover .program-ad-headline {
    font-size: 2.5rem;
  }

  .program-ad--full-screen {
    min-height: 70vh;
  }

  .program-ad--full-screen .program-ad-headline {
    font-size: 2.125rem;
  }

  .program-ad--half-screen .program-ad-image {
    max-width: 320px;
  }
}

/* ---- Narrow viewport: icon-only section links (640px–950px) ---- */
@media (min-width: 640px) and (max-width: 950px) {
  .program-nav-link .program-nav-label {
    display: none;
  }

  .program-nav-link {
    padding: 0.375rem;
    position: relative;
  }

  .program-nav-link .fa-icon {
    margin-right: 0;
  }

  /* Tooltip below on hover (z-index so it appears above content below the bar) */
  .program-nav-link::after {
    content: attr(title);
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 0.25rem;
    padding: 0.25rem 0.5rem;
    font-family: 'Poppins', sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    color: #fff;
    background: var(--color-accent-dark);
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
    z-index: 1001;
  }

  .program-nav-link:hover::after {
    opacity: 1;
  }
}

/* ---- Mobile Hamburger Menu (max 639px) ---- */

/* Toggle button: hidden by default, shown on mobile */
.program-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  z-index: 10;
  flex-shrink: 0;
}

/* Hamburger icon: 3 lines */
.program-hamburger-icon {
  display: block;
  width: 24px;
  height: 2px;
  position: relative;
  background-color: var(--color-accent);
  transition: background-color 0.3s ease;
  margin: 8px 0;
}

.program-hamburger-icon::before,
.program-hamburger-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent);
  transition: top 0.3s ease, transform 0.3s ease;
}

.program-hamburger-icon::before {
  top: -8px;
}

.program-hamburger-icon::after {
  top: 8px;
}

/* Animate to X when open */
.program-nav-toggle[aria-expanded="true"] .program-hamburger-icon {
  background-color: transparent;
}

.program-nav-toggle[aria-expanded="true"] .program-hamburger-icon::before {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.program-nav-toggle[aria-expanded="true"] .program-hamburger-icon::after {
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
}

@media (max-width: 639px) {
  .program-nav-toggle {
    display: block;
    min-width: 44px;
    min-height: 44px;
    padding: 0.5rem;
    margin-left: auto;
  }

  .program-nav-close {
    display: none;
  }

  .program-nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    width: 100%;
    background: #ffffff;
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid rgba(26, 95, 109, 0.15);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    z-index: 999;
  }
}

/* Backdrop overlay for mobile menu */
.program-nav-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 998;
}

@media (max-width: 639px) {
  .program-nav-links.program-nav-open {
    display: flex;
    animation: programMenuSlideDown 0.3s ease;
  }

  @keyframes programMenuSlideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .program-nav-list {
    flex-direction: column;
    gap: 0.25rem;
    justify-content: flex-start;
  }

  .program-nav-list li {
    width: 100%;
  }

  .program-nav-link {
    width: 100%;
    padding: 0.875rem var(--spacing-md);
    text-align: left;
    font-size: 1rem;
    min-height: 44px;
    display: flex;
    align-items: center;
  }
}

/* ---- Small phones (max 480px) ---- */

@media (max-width: 480px) {
  .program-hero-title {
    font-size: 1.625rem;
  }

  .program-hero-globe {
    max-width: 220px;
    max-height: min(34vh, 200px);
  }

  .program-hero-date {
    font-size: 1.0625rem;
  }

  .program-section-title {
    font-size: 1.375rem;
  }

  .program-ad--back-cover .program-ad-headline {
    font-size: 1.375rem;
  }

  .program-ad--full-screen .program-ad-headline {
    font-size: 1.25rem;
  }
}