.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--layer-navigation);
  background: var(--colour-brand);
  color: var(--colour-white);
  box-shadow: 0 1px 0 rgb(255 255 255 / 0.12);
}

.site-header__inner {
  display: flex;
  min-height: 4.25rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--colour-white);
  text-decoration: none;
}

.site-brand:hover { color: var(--colour-white); }
.site-brand__mark { width: 2.5rem; height: 2.5rem; object-fit: contain; }
.site-brand__name { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; line-height: 1.12; }
.site-brand__name small { display: block; color: var(--colour-highlight); font-family: var(--font-body); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase; }

.nav-toggle {
  display: none;
  min-width: 2.75rem;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  border: 1px solid rgb(255 255 255 / 0.35);
  border-radius: var(--radius-small);
  background: transparent;
  color: var(--colour-white);
  font-weight: 700;
}

.nav-list { display: flex; margin: 0; padding: 0; gap: var(--space-1); list-style: none; }
.nav-list li { margin: 0; }
.nav-list a { display: block; padding: var(--space-2) var(--space-3); border-radius: var(--radius-small); color: var(--colour-white); font-size: var(--text-step--1); font-weight: 600; text-decoration: none; }
.nav-list a:hover { background: rgb(255 255 255 / 0.15); color: var(--colour-white); }
.nav-list a[aria-current="page"] { background: var(--colour-white); color: var(--colour-brand-strong); }

.notice-bar { padding-block: var(--space-2); background: var(--colour-brand-bright); color: var(--colour-white); font-size: var(--text-step--1); font-weight: 600; }
.notice-bar__inner { display: flex; align-items: center; justify-content: center; gap: var(--space-3); text-align: center; }
.notice-bar a { color: inherit; }

.hero { position: relative; min-height: clamp(32rem, 70vh, 47rem); overflow: hidden; isolation: isolate; background: var(--colour-brand-strong); color: var(--colour-white); }
.hero__image { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: center 62%; }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(to bottom, rgb(10 45 25 / 0.08), rgb(10 45 25 / 0.28) 48%, rgb(10 45 25 / 0.82)); }
.hero__content { display: flex; min-height: inherit; flex-direction: column; justify-content: flex-end; padding-block: var(--space-20); }
.hero__content > * { max-width: 46rem; }
.hero .eyebrow { color: var(--colour-highlight); }
.hero .lead { color: rgb(255 255 255 / 0.9); }
.hero--compact { min-height: clamp(25rem, 55vh, 36rem); }
.hero--compact .hero__content { padding-block: var(--space-16); }

.button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.65rem 1.2rem;
  border: 2px solid transparent;
  border-radius: var(--radius-small);
  font-size: var(--text-step--1);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform var(--duration-fast) var(--ease-standard), background-color var(--duration-fast), box-shadow var(--duration-fast);
}
.button:hover { transform: translateY(-2px); }
.button--primary { background: var(--colour-highlight); color: var(--colour-charcoal-900); }
.button--primary:hover { background: var(--colour-gold-600); color: var(--colour-charcoal-900); box-shadow: 0 7px 20px rgb(245 194 0 / 0.3); }
.button--secondary { background: var(--colour-brand); color: var(--colour-white); }
.button--secondary:hover { background: var(--colour-brand-strong); color: var(--colour-white); }
.button--outline { border-color: currentColor; background: transparent; color: currentColor; }
.button--outline:hover { background: rgb(255 255 255 / 0.12); color: inherit; }

.card { overflow: hidden; border: 1px solid var(--colour-border); border-radius: var(--radius-medium); background: var(--colour-white); box-shadow: var(--shadow-small); }
.card__image { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.card__body { padding: var(--space-6); }
.card__meta { margin-block-end: var(--space-2); color: var(--colour-earth-600); font-size: var(--text-step--1); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.card__title { font-size: var(--text-step-2); }
.card--interactive { transition: transform var(--duration-normal) var(--ease-standard), box-shadow var(--duration-normal); }
.card--interactive:hover { transform: translateY(-0.35rem); box-shadow: var(--shadow-medium); }

.event-card { position: relative; }
.event-card__status { position: absolute; inset-block-start: var(--space-4); inset-inline-start: var(--space-4); padding: var(--space-1) var(--space-3); border-radius: var(--radius-round); background: var(--colour-highlight); color: var(--colour-charcoal-900); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.07em; text-transform: uppercase; }

.quick-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); margin: 0; padding: var(--space-6); gap: var(--space-5); border-radius: var(--radius-medium); background: var(--colour-accent); color: var(--colour-white); }
.quick-facts div { display: flex; min-width: 0; flex-direction: column; justify-content: center; }
.quick-facts dt { color: rgb(255 255 255 / 0.75); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.09em; text-transform: uppercase; }
.quick-facts dd { margin: var(--space-1) 0 0; font-weight: 700; }

.feature { padding: var(--space-6); border-radius: var(--radius-medium); background: var(--colour-surface-soft); text-align: center; }
.feature__icon { display: grid; width: 2.75rem; height: 2.75rem; margin-block: 0 var(--space-4); margin-inline: auto; place-items: center; border-radius: var(--radius-round); background: var(--colour-green-100); color: var(--colour-brand-strong); font-weight: 800; }
.feature__title { margin-block-end: var(--space-4); font-size: var(--text-step-1); }

.status-pill { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--space-1) var(--space-3); border-radius: var(--radius-round); background: var(--colour-green-100); color: var(--colour-brand-strong); font-size: var(--text-step--1); font-weight: 700; }
.status-pill--pending { background: #fff2c6; color: #6d5100; }
.status-pill--complete { background: #e7edf0; color: #3e4c53; }

.colour-swatch { overflow: hidden; border: 1px solid var(--colour-border); border-radius: var(--radius-medium); background: var(--colour-white); }
.colour-swatch__colour { min-height: 6rem; background: var(--swatch); }
.colour-swatch__label { padding: var(--space-4); font-size: var(--text-step--1); }
.colour-swatch__label strong, .colour-swatch__label code { display: block; }

.type-sample { padding-block: var(--space-6); border-block-end: 1px solid var(--colour-border); }
.type-sample:last-child { border-block-end: 0; }
.type-sample__label { margin-block-end: var(--space-2); color: var(--colour-text-muted); font-size: var(--text-step--1); }

.event-theme { overflow: hidden; border-radius: var(--radius-large); background: var(--event-surface); color: var(--event-text); box-shadow: var(--shadow-medium); }
.event-theme__content { padding: clamp(var(--space-8), 5vw, var(--space-12)); background: linear-gradient(135deg, var(--event-surface-alt), var(--event-surface)); }
.event-theme .eyebrow { color: var(--event-highlight); }
.event-theme .button--secondary { background: var(--event-accent); }

details { border-block-end: 1px solid var(--colour-border); }
summary { padding-block: var(--space-4); color: var(--colour-brand-strong); font-weight: 700; cursor: pointer; }
details > div { padding-block-end: var(--space-4); }

.site-footer { padding-block: var(--space-16) var(--space-6); background: var(--colour-charcoal-900); color: rgb(255 255 255 / 0.82); }
.site-footer a { color: var(--colour-white); }
.site-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--space-10); }
.site-footer h2 { color: var(--colour-white); font-size: var(--text-step-1); }
.site-footer ul { padding: 0; list-style: none; }
.site-footer__bottom { margin-block-start: var(--space-10); padding-block-start: var(--space-4); border-block-start: 1px solid rgb(255 255 255 / 0.16); font-size: var(--text-step--1); }

.demo-nav { position: sticky; inset-block-start: 4.25rem; z-index: var(--layer-sticky); padding-block: var(--space-2); overflow-x: auto; background: rgb(255 255 255 / 0.95); border-block-end: 1px solid var(--colour-border); backdrop-filter: blur(12px); }
.demo-nav ul { display: flex; width: max-content; margin: 0; padding: 0; gap: var(--space-2); list-style: none; }
.demo-nav li { margin: 0; }
.demo-nav a { display: block; padding: var(--space-2) var(--space-3); border-radius: var(--radius-small); font-size: var(--text-step--1); font-weight: 700; text-decoration: none; }

.breadcrumbs { padding-block: var(--space-3); font-size: var(--text-step--1); }
.breadcrumbs ol { display: flex; flex-wrap: wrap; margin: 0; padding: 0; gap: var(--space-2); list-style: none; }
.breadcrumbs li { margin: 0; }
.breadcrumbs li + li::before { content: "/"; margin-inline-end: var(--space-2); color: var(--colour-grey-500); }

.callout { display: grid; padding: clamp(var(--space-6), 5vw, var(--space-10)); gap: var(--space-5); border-radius: var(--radius-large); background: var(--colour-brand-strong); color: var(--colour-white); }
.callout .eyebrow { color: var(--colour-highlight); }
.callout h2, .callout p { max-width: 44rem; }
.callout__single-line-heading { font-size: clamp(1.45rem, 2.5vw, 2.2rem); text-wrap: wrap; white-space: nowrap; }

.quote { padding: clamp(var(--space-6), 5vw, var(--space-10)); border: 0; border-radius: var(--radius-large); background: var(--colour-surface-soft); color: var(--colour-text); }
.quote p { font-size: var(--text-step-2); }
.quote footer { font-family: var(--font-body); font-size: var(--text-step--1); font-weight: 700; }

.statistics { display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: var(--space-6); }
.statistic { padding: var(--space-6); border-block-start: 4px solid var(--colour-highlight); background: var(--colour-surface-soft); }
.statistic strong { display: block; color: var(--colour-brand-strong); font-family: var(--font-display); font-size: var(--text-step-3); line-height: 1; }
.statistics--centred .statistic { text-align: center; }
.statistics--centred .statistic span { display: block; }
.statistics--centred .statistic__label { margin-block-start: var(--space-2); font-weight: 700; }
.statistics--centred .statistic__detail { margin-block-start: var(--space-1); }

.timeline { position: relative; margin: 0; padding: 0; list-style: none; }
.timeline::before { content: ""; position: absolute; inset-block: 0; inset-inline-start: 0.45rem; width: 2px; background: var(--colour-border); }
.timeline__item { position: relative; margin: 0; padding: 0 0 var(--space-10) var(--space-8); }
.timeline__item::before { content: ""; position: absolute; inset-block-start: 0.45rem; inset-inline-start: 0; width: 0.95rem; height: 0.95rem; border: 3px solid var(--colour-white); border-radius: 50%; background: var(--colour-brand); box-shadow: 0 0 0 2px var(--colour-brand); }
.timeline__date { color: var(--colour-brand-strong); font-size: var(--text-step--1); font-weight: 800; }

.sponsor-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: var(--space-4); align-items: stretch; }
.sponsor { display: grid; min-height: 7rem; padding: var(--space-4); place-items: center; border: 1px solid var(--colour-border); border-radius: var(--radius-medium); background: var(--colour-white); color: var(--colour-text); text-align: center; text-decoration: none; }
.sponsor:hover { border-color: var(--colour-brand); color: var(--colour-brand-strong); }

.carousel { position: relative; overflow: hidden; border-radius: var(--radius-large); background: var(--colour-charcoal-900); color: var(--colour-white); }
.carousel__slide { margin: 0; }
.carousel__slide[hidden] { display: none; }
.carousel__slide img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.carousel__portrait { display: grid; aspect-ratio: 16 / 9; overflow: hidden; background: var(--colour-charcoal-900); }
.carousel__portrait-background, .carousel__portrait-image { width: 100% !important; height: 100% !important; grid-area: 1 / 1; aspect-ratio: auto !important; }
.carousel__portrait-background { object-fit: cover !important; filter: blur(24px); transform: scale(1.1); opacity: 0.78; }
.carousel__portrait-image { z-index: 1; object-fit: contain !important; }
.carousel__slide figcaption { padding: var(--space-4) var(--space-5); }
.carousel__controls { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; padding: var(--space-3) var(--space-4); gap: var(--space-3); }
.carousel__button { min-width: 2.75rem; min-height: 2.75rem; border: 1px solid rgb(255 255 255 / 0.45); border-radius: var(--radius-small); background: transparent; color: var(--colour-white); font-weight: 700; }
.carousel__button:hover { background: rgb(255 255 255 / 0.15); }

.filter-bar { display: flex; flex-wrap: wrap; margin-block-end: var(--space-6); gap: var(--space-2); }
.filter-button { min-height: 2.75rem; padding: var(--space-2) var(--space-4); border: 1px solid var(--colour-border); border-radius: var(--radius-round); background: var(--colour-white); color: var(--colour-text); font-weight: 700; }
.filter-button[aria-pressed="true"] { border-color: var(--colour-brand); background: var(--colour-brand); color: var(--colour-white); }

.gallery-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); gap: var(--space-4); }
.gallery-grid [hidden] { display: none; }
.gallery-load-more { margin-block-start: var(--space-8); text-align: center; }
.gallery-item { margin: 0; }
.gallery-item button { width: 100%; padding: 0; overflow: hidden; border: 0; border-radius: var(--radius-medium); background: var(--colour-surface-soft); text-align: start; }
.gallery-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform var(--duration-normal) var(--ease-standard); }
.gallery-item button:hover img { transform: scale(1.025); }
.gallery-item figcaption { padding: var(--space-3) var(--space-4); color: var(--colour-text); }

.lightbox { width: min(92vw, 72rem); max-height: 92vh; padding: 0; border: 0; border-radius: var(--radius-large); background: var(--colour-charcoal-900); color: var(--colour-white); box-shadow: var(--shadow-large); }
.lightbox::backdrop { background: rgb(0 0 0 / 0.78); }
.lightbox__body { display: grid; max-height: 92vh; grid-template-rows: auto minmax(0, 1fr) auto; }
.lightbox__top, .lightbox__controls { display: flex; align-items: center; justify-content: space-between; padding: var(--space-3) var(--space-4); gap: var(--space-3); }
.lightbox__image { width: 100%; height: min(68vh, 46rem); object-fit: contain; }
.lightbox__caption { margin: 0; }
.lightbox__button { min-width: 2.75rem; min-height: 2.75rem; border: 1px solid rgb(255 255 255 / 0.45); border-radius: var(--radius-small); background: transparent; color: var(--colour-white); font-weight: 700; }

.countdown { padding: clamp(var(--space-6), 5vw, var(--space-10)); border-radius: var(--radius-large); background: var(--colour-brand-strong); color: var(--colour-white); text-align: center; }
.countdown .eyebrow { color: var(--colour-highlight); }
.countdown__output { display: grid; grid-template-columns: repeat(4, minmax(4rem, 1fr)); gap: var(--space-3); }
.countdown__item { padding: var(--space-4) var(--space-2); border-radius: var(--radius-medium); background: rgb(255 255 255 / 0.12); }
.countdown__item strong, .countdown__item span { display: block; }
.countdown__item strong { color: var(--colour-highlight); font-family: var(--font-display); font-size: var(--text-step-3); line-height: 1; }
.countdown__item span { margin-block-start: var(--space-2); font-size: var(--text-step--1); }
.countdown__complete { margin: 0; font-size: var(--text-step-1); font-weight: 700; }

.component-state { padding: var(--space-6); border: 1px dashed var(--colour-grey-500); border-radius: var(--radius-medium); background: var(--colour-surface-soft); text-align: center; }
.component-state[data-state="error"] { border-color: var(--colour-red-600); }

.overlap-panel { position: relative; z-index: 2; margin-block-start: clamp(-5rem, -8vw, -3rem); padding: clamp(var(--space-6), 5vw, var(--space-10)); border-radius: var(--radius-large); background: var(--colour-white); box-shadow: var(--shadow-large); }
.image-panel { display: grid; min-height: 28rem; overflow: hidden; grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.85fr); border-radius: var(--radius-large); background: var(--colour-brand-strong); color: var(--colour-white); box-shadow: var(--shadow-medium); }
.image-panel__media { min-height: 22rem; }
.image-panel__media img { width: 100%; height: 100%; object-fit: cover; }
.image-panel__content { display: flex; flex-direction: column; justify-content: center; padding: clamp(var(--space-8), 6vw, var(--space-16)); }
.image-panel__content .eyebrow { color: var(--colour-highlight); }
.image-panel__content p { color: rgb(255 255 255 / 0.88); }

.news-card { padding: var(--space-6); border-block-start: 4px solid var(--colour-brand); background: var(--colour-white); box-shadow: var(--shadow-small); }
.news-card time { color: var(--colour-earth-600); font-size: var(--text-step--1); font-weight: 700; }

.location-prompt { position: relative; overflow: hidden; padding: clamp(var(--space-10), 8vw, var(--space-20)); border-radius: var(--radius-large); background: linear-gradient(135deg, var(--colour-green-900), var(--colour-green-700)); color: var(--colour-white); }
.location-prompt::after { content: ""; position: absolute; width: 18rem; height: 18rem; inset-block-end: -9rem; inset-inline-end: -6rem; border: 3rem solid rgb(255 255 255 / 0.06); border-radius: 50%; }
.location-prompt > * { position: relative; z-index: 1; max-width: 45rem; }
.location-prompt .eyebrow { color: var(--colour-highlight); }

.practical-list { display: grid; margin: 0; gap: var(--space-4); }
.practical-list div { padding: var(--space-5); border-inline-start: 4px solid var(--colour-brand); background: var(--colour-surface-soft); }
.practical-list dt { color: var(--colour-brand-strong); font-weight: 800; }
.practical-list dd { margin: var(--space-1) 0 0; overflow-wrap: anywhere; }

.person-card { display: grid; padding: var(--space-6); grid-template-columns: auto 1fr; gap: var(--space-4); align-items: center; border: 1px solid var(--colour-border); border-radius: var(--radius-medium); background: var(--colour-white); box-shadow: var(--shadow-small); }
.person-card__mark { display: grid; width: 3.5rem; height: 3.5rem; place-items: center; border-radius: 50%; background: var(--colour-green-100); color: var(--colour-brand-strong); font-family: var(--font-display); font-size: var(--text-step-1); font-weight: 700; }
.person-card h3, .person-card p { margin: 0; }
.person-card p { color: var(--colour-text-muted); font-size: var(--text-step--1); }

.contact-card { display: flex; min-height: 100%; padding: var(--space-6); flex-direction: column; border-block-start: 4px solid var(--colour-brand); border-radius: 0 0 var(--radius-medium) var(--radius-medium); background: var(--colour-white); box-shadow: var(--shadow-small); }
.contact-card p:last-of-type { flex-grow: 1; }
.contact-card__address { overflow-wrap: anywhere; font-weight: 700; }

@media (max-width: 48rem) {
  .overlap-panel { margin-block-start: -2rem; }
  .image-panel { grid-template-columns: 1fr; }
  .image-panel__media { min-height: 18rem; }
  .callout__single-line-heading { font-size: var(--text-step-3); white-space: normal; }
}

@media (max-width: 56rem) {
  .js .nav-toggle { display: inline-flex; }
  .js .site-navigation { position: absolute; inset-block-start: 100%; inset-inline: 0; display: none; padding: var(--space-3) var(--page-gutter) var(--space-5); background: var(--colour-brand); box-shadow: var(--shadow-medium); }
  .js .site-navigation.is-open { display: block; }
  .nav-list { flex-direction: column; }
  .nav-list a { padding: var(--space-3); }
  .site-footer__grid { grid-template-columns: 1fr; }
}

@media (max-width: 36rem) {
  .site-brand__name { font-size: 0.92rem; }
  .hero { min-height: 34rem; }
  .quick-facts { grid-template-columns: 1fr 1fr; }
  .countdown__output { grid-template-columns: 1fr 1fr; }
}