.page-challenge-system { background: var(--paper-100); }

#event,
#categories,
#community-impact,
#previous-challenges,
#enquire { scroll-margin-top: 7rem; }

.challenge-text-link {
  display: inline-flex;
  min-height: 2.6rem;
  align-items: center;
  border-bottom: 1px solid currentColor;
  color: var(--rust-500);
  text-decoration: none;
  text-transform: uppercase;
  font: 500 .7rem/1.4 var(--field);
  letter-spacing: .09em;
}

.challenge-text-link--reverse { color: #f4d2bd; }

.challenge-hero {
  position: relative;
  min-height: min(58rem, 100svh);
  margin-top: -6rem;
  overflow: hidden;
  background: var(--iron-950) url("assets/ui/parchment-texture.webp") center / 560px auto repeat;
  background-blend-mode: multiply;
  color: var(--text-reverse);
}

.challenge-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(112deg, rgb(21 10 6 / 96%) 0 40%, rgb(31 16 10 / 76%) 68%, rgb(21 10 6 / 92%) 100%);
  pointer-events: none;
}

.challenge-hero__layout {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: min(58rem, 100svh);
  grid-template-columns: minmax(26rem, 1.08fr) minmax(24rem, .92fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
  padding-block: clamp(9rem, 13vw, 11.5rem) clamp(4rem, 8vw, 7rem);
}

.challenge-hero__copy { max-width: 48rem; }

.challenge-hero__edition,
.challenge-hero__date {
  margin: 0;
  color: #efc6ad;
  text-transform: uppercase;
  font: 500 .72rem/1.5 var(--field);
  letter-spacing: .14em;
}

.challenge-hero__copy h1 {
  max-width: 11ch;
  margin: 1.25rem 0 1.7rem;
  font-size: clamp(3.5rem, 2rem + 4.1vw, 6.8rem);
  line-height: .91;
}

.challenge-hero__date {
  width: fit-content;
  padding-block: .7rem;
  border-block: 1px solid rgb(255 248 239 / 24%);
  color: var(--firelight-400);
}

.challenge-hero__intro {
  max-width: 43rem;
  margin: 1.6rem 0 0;
  color: rgb(255 248 239 / 75%);
  font-size: var(--font-lead);
}

.challenge-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem 1.6rem;
  align-items: center;
  margin-top: 2rem;
}

.challenge-hero__poster {
  width: min(100%, 34rem);
  justify-self: end;
  transform: rotate(.35deg);
  filter: drop-shadow(0 18px 32px rgb(0 0 0 / 38%));
}

.challenge-hero__poster > img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center;
  filter: none;
}

.challenge-introduction {
  padding-block: var(--section-space);
  overflow: hidden;
}

.challenge-introduction__layout {
  display: grid;
  grid-template-columns: minmax(20rem, .78fr) minmax(28rem, 1.22fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
}

.challenge-introduction__heading {
  position: relative;
  padding-bottom: 1.7rem;
}

.challenge-introduction__heading::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 5rem;
  height: 2px;
  background: var(--rust-500);
}

.challenge-introduction__heading h2 { max-width: 9ch; }

.challenge-introduction__note {
  padding: clamp(2.2rem, 4.2vw, 4rem);
  background: #fbf3e5 url("assets/ui/parchment-texture.webp") center / 560px auto repeat;
  background-blend-mode: screen;
  box-shadow: none;
  filter: drop-shadow(0 8px 16px rgb(39 24 14 / 18%));
  transform: rotate(.25deg);
}

.challenge-introduction__note .lead { margin-top: 0; color: var(--ink-900); }
.challenge-introduction__note p:last-child { margin-bottom: 0; color: var(--stone-600); }

.challenge-facts {
  display: grid;
  grid-template-columns: .75fr 1fr 1.35fr 1.5fr;
  margin-top: clamp(3.5rem, 6vw, 5.5rem);
  background: var(--iron-950) url("assets/ui/charcoal-sheet.webp") center / cover no-repeat;
  color: var(--text-reverse);
  box-shadow: var(--shadow-print);
}

.challenge-facts > div {
  display: grid;
  min-width: 0;
  gap: .55rem;
  padding: 1.55rem clamp(1rem, 2vw, 1.8rem);
}

.challenge-facts > div + div { border-left: 1px solid rgb(255 248 239 / 17%); }
.challenge-facts dt { color: var(--firelight-400); text-transform: uppercase; font: 500 .62rem/1.3 var(--field); letter-spacing: .1em; }
.challenge-facts dd { margin: 0; color: rgb(255 248 239 / 82%); font-size: .9rem; line-height: 1.45; }

.challenge-categories {
  padding-block: var(--section-space);
  background: var(--paper-200);
}

.challenge-categories__layout {
  display: grid;
  grid-template-columns: minmax(18rem, .65fr) minmax(32rem, 1.35fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
}

.challenge-categories__heading { padding-top: 1.2rem; }
.challenge-categories__heading h2 { max-width: 8ch; }
.challenge-categories__heading .lead { max-width: 30rem; color: var(--stone-600); }
.challenge-categories__heading .button { margin-top: 1.25rem; }

.challenge-categories__heading address {
  margin-top: 1.6rem;
  color: var(--stone-600);
  font: normal .75rem/1.65 var(--field);
  letter-spacing: .04em;
}

.challenge-categories__heading address a {
  color: var(--rust-600);
  text-underline-offset: .2em;
}

.challenge-category-ledger {
  min-height: 0;
  padding: clamp(2.6rem, 5vw, 4.8rem);
  -webkit-mask: var(--deckle-tall) center / 100% 100% no-repeat;
  mask: var(--deckle-tall) center / 100% 100% no-repeat;
}

.challenge-category-ledger ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(2rem, 5vw, 4.5rem);
  margin: 0;
  padding: 0;
  counter-reset: challenge-category;
  list-style: none;
}

.challenge-category-ledger li {
  position: relative;
  min-height: 5.7rem;
  padding: 1.35rem 0 1.2rem 3.2rem;
  border-top: 1px solid rgb(255 248 239 / 22%);
  counter-increment: challenge-category;
}

.challenge-category-ledger li::before {
  content: counter(challenge-category, decimal-leading-zero);
  position: absolute;
  top: 1.55rem;
  left: 0;
  color: var(--firelight-400);
  font: 500 .68rem/1 var(--field);
  letter-spacing: .1em;
}

.challenge-category-ledger strong {
  display: block;
  color: rgb(255 248 239 / 88%);
  font: 500 clamp(1.06rem, .96rem + .3vw, 1.28rem)/1.35 var(--display);
  letter-spacing: -.015em;
}

.challenge-community {
  padding-block: var(--section-space);
  background: var(--iron-950) url("assets/ui/parchment-texture.webp") center / 560px auto repeat;
  background-blend-mode: multiply;
}

.challenge-community__layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: center;
}

.challenge-community__photo {
  grid-column: 1 / span 8;
  grid-row: 1;
  transform: rotate(-.3deg);
}

.challenge-community__photo .photo-frame > img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(.88) contrast(1.025);
}

.challenge-community__photo figcaption { color: rgb(255 248 239 / 58%); }
.challenge-community__photo .tape--bottom-right { top: 99%; left: 64%; }

.challenge-community__copy {
  z-index: 2;
  grid-column: 7 / -1;
  grid-row: 1;
  padding: clamp(2.4rem, 4.8vw, 4.6rem);
  transform: rotate(.25deg);
}

.challenge-community__copy h2 { max-width: 11ch; margin-bottom: 1.45rem; }
.challenge-community__copy .lead { color: var(--ink-900); }
.challenge-community__copy p:last-child { color: var(--stone-600); }

.challenge-archive { padding-block: var(--section-space); }
.challenge-archive__heading { margin-bottom: clamp(3.5rem, 6vw, 5.5rem); }
.challenge-archive__heading h2 { max-width: 11ch; }

.challenge-archive__layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: end;
}

.challenge-archive__gallery {
  grid-column: 4 / -1;
  grid-row: 1;
  transform: rotate(.25deg);
}

.challenge-archive__gallery .photo-frame > img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 46%;
  filter: saturate(.78) sepia(.08) contrast(1.04);
}

.challenge-archive__gallery figcaption {
  padding-top: 3.35rem;
}

.challenge-archive__note {
  z-index: 2;
  grid-column: 1 / span 5;
  grid-row: 1;
  margin-bottom: clamp(2rem, 5vw, 5rem);
  padding: clamp(2rem, 4vw, 3.7rem);
  transform: rotate(-.45deg);
}

.challenge-archive__note p {
  margin: 0;
  color: rgb(255 248 239 / 86%);
  font-size: var(--font-lead);
}

.challenge-entry {
  padding-block: clamp(4.5rem, 8vw, 7rem);
  background: var(--paper-050) url("assets/ui/parchment-texture.webp") center top / 560px auto repeat;
  background-blend-mode: screen;
}

.challenge-entry__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2.5rem;
  align-items: center;
  padding: clamp(2.5rem, 5vw, 4.8rem);
}

.challenge-entry__panel h2 { margin-bottom: 1rem; }
.challenge-entry__panel p:not(.field-label) { margin-bottom: 0; color: rgb(255 248 239 / 76%); }
.challenge-entry__panel p a { text-underline-offset: .2em; }

.challenge-button--light {
  background: var(--paper-050);
  color: var(--rust-600);
  white-space: nowrap;
}

.challenge-button--light:hover { background: #fff9ef; }

@media (prefers-reduced-motion: no-preference) {
  .challenge-hero__copy { animation: challenge-copy-enter 1.1s var(--ease-field) .12s both; }
  .challenge-hero__poster { animation: challenge-poster-enter 1.25s var(--ease-field) .2s both; }
}

@keyframes challenge-copy-enter {
  from { opacity: 0; transform: translateX(-1.4rem); }
  to { opacity: 1; transform: none; }
}

@keyframes challenge-poster-enter {
  from { opacity: 0; transform: translate(1.2rem, .8rem) rotate(.35deg); }
  to { opacity: 1; transform: rotate(.35deg); }
}

@media (max-width: 1080px) {
  .challenge-hero { min-height: 0; }
  .challenge-hero__layout {
    min-height: 0;
    grid-template-columns: minmax(22rem, 1fr) minmax(19rem, .72fr);
    gap: clamp(2rem, 5vw, 4rem);
    padding-top: 8.5rem;
  }
  .challenge-hero__copy h1 { font-size: clamp(3.3rem, 2rem + 4.3vw, 5.6rem); }
  .challenge-introduction__layout,
  .challenge-categories__layout { grid-template-columns: 1fr; }
  .challenge-introduction__heading,
  .challenge-categories__heading { max-width: 42rem; }
  .challenge-introduction__note { width: min(100%, 50rem); margin-left: auto; }
  .challenge-category-ledger { width: min(100%, 54rem); margin-left: auto; }
  .challenge-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .challenge-facts > div:nth-child(3) { border-top: 1px solid rgb(255 248 239 / 17%); border-left: 0; }
  .challenge-facts > div:nth-child(4) { border-top: 1px solid rgb(255 248 239 / 17%); }
  .challenge-community__photo { grid-column: 1 / span 9; }
  .challenge-community__copy { grid-column: 7 / -1; }
}

@media (max-width: 820px) {
  .challenge-hero { margin-top: -5.35rem; }
  .challenge-hero__layout {
    grid-template-columns: 1fr;
    padding-top: 8.5rem;
  }
  .challenge-hero__copy { max-width: 44rem; }
  .challenge-hero__poster { width: min(82%, 32rem); justify-self: center; }
  .challenge-community__layout,
  .challenge-archive__layout { display: block; }
  .challenge-community__photo,
  .challenge-archive__gallery {
    width: min(100%, 48rem);
    margin-inline: auto;
    padding-bottom: 2.7rem;
  }
  .challenge-community__copy,
  .challenge-archive__note {
    width: min(calc(100% - 1.2rem), 43rem);
    margin: -2.2rem 0 0 auto;
  }
  .challenge-archive__note { margin-top: -2.2rem; }
}

@media (max-width: 760px) {
  #event,
  #categories,
  #community-impact,
  #previous-challenges,
  #enquire { scroll-margin-top: 5.5rem; }

  .challenge-hero { margin-top: -4.75rem; }
  .challenge-hero__layout { gap: 3.2rem; padding-block: 7.4rem 4.5rem; }
  .challenge-hero__copy h1 { font-size: clamp(3rem, 12.5vw, 4.35rem); }
  .challenge-hero__actions { align-items: flex-start; flex-direction: column; }
  .challenge-hero__poster { width: min(90%, 29rem); }
  .challenge-introduction__layout { gap: 2.4rem; }
  .challenge-introduction__note { padding: 2.15rem 1.6rem; transform: none; }
  .challenge-facts { grid-template-columns: 1fr; }
  .challenge-facts > div + div,
  .challenge-facts > div:nth-child(3),
  .challenge-facts > div:nth-child(4) { border-top: 1px solid rgb(255 248 239 / 17%); border-left: 0; }
  .challenge-category-ledger { padding: 2.4rem 1.55rem; }
  .challenge-category-ledger ol { grid-template-columns: 1fr; }
  .challenge-category-ledger li { min-height: 0; }
  .challenge-community__copy { padding: 2.25rem 1.55rem; transform: none; }
  .challenge-archive__heading { margin-bottom: 3rem; }
  .challenge-archive__note { padding: 2.1rem 1.55rem; transform: none; }
  .challenge-entry__panel { grid-template-columns: 1fr; padding: 2.4rem 1.55rem; }
  .challenge-entry__panel .button { justify-self: start; }
}

@media (max-width: 420px) {
  .challenge-hero__actions .button,
  .challenge-entry__panel .button { width: 100%; }
  .challenge-hero__poster { width: 100%; }
  .challenge-category-ledger li { padding-left: 2.75rem; }
}

@media (prefers-reduced-motion: reduce) {
  .challenge-hero__copy,
  .challenge-hero__poster { animation: none !important; }
}

@media (forced-colors: active) {
  .challenge-hero,
  .challenge-facts,
  .challenge-category-ledger,
  .challenge-community,
  .challenge-entry__panel { background: Canvas; color: CanvasText; border: 1px solid CanvasText; }
  .challenge-hero::before { display: none; }
}