html.ic-modal-open { overflow: hidden; }
.challenge-page { --ic-paper: #f3f7f9; --ic-border: #d2e0e8; }
.challenge-page [hidden] { display: none !important; }
.challenge-page .container { width: 100%; max-width: 1600px; padding-inline: clamp(20px, 3vw, 48px); margin-inline: auto; }
.challenge-page .ic-section { padding-block: clamp(58px, 6vw, 96px); }
.challenge-page .ic-section h2 { color: var(--blue-deep); font-size: clamp(32px, 3.5vw, 54px); line-height: 1.12; letter-spacing: -.035em; }
.challenge-page .ic-prose { color: var(--copy); font-size: 18px; line-height: 1.7; }
.challenge-page .ic-prose p + p { margin-top: 22px; }
.challenge-page .ic-prose a { color: var(--blue-deep); text-decoration: underline; text-underline-offset: 4px; }
.challenge-page .ic-prose a:hover { text-decoration-thickness: 2px; }
.challenge-page .ic-hero { padding-block: clamp(44px, 5vw, 78px); }
.challenge-page .ic-hero-grid { grid-template-areas: "heading gallery" "message gallery"; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px clamp(30px, 5vw, 78px); align-items: center; }
.challenge-page .ic-hero-heading { grid-area: heading; min-width: 0; }
.challenge-page .ic-hero-message { grid-area: message; min-width: 0; }
.challenge-page .ic-organization { color: var(--copy); font-size: 18px; line-height: 1.45; margin: 0 0 21px; max-width: 38ch; }
.challenge-page .ic-hero h1 { color: var(--blue-deep); font-size: clamp(43px, 4.7vw, 76px); font-weight: 500; letter-spacing: -.055em; line-height: 1.02; max-width: 16ch; margin: 0; }
.challenge-page .ic-intro-copy { margin-top: 0; color: var(--copy); font-size: 18px; line-height: 1.55; }
.challenge-page .ic-intro-copy p { margin: 0; }
.challenge-page .ic-intro-copy p + p { margin-top: 17px; }
.challenge-page .ic-intro-copy p:last-child { color: var(--blue-deep); }
.challenge-page .ic-intro-copy .ic-prize-callout { font-size: 20px; font-weight: 700; line-height: 1.6; }
.challenge-page .ic-prize-amount { font-weight: 800; text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 4px; white-space: nowrap; }
.challenge-page .ic-register { margin-top: 30px; padding: 15px 24px; min-height: 52px; font-size: 16px; letter-spacing: .025em; }
.challenge-page .ic-view-timeline { display: inline-flex; align-items: center; gap: 10px; margin: 16px 0 0 17px; min-height: 48px; padding: 10px 0; border: 0; background: transparent; color: var(--blue-deep); font: inherit; font-size: 17px; font-weight: 600; cursor: pointer; text-decoration: underline; text-underline-offset: 5px; }
.challenge-page .ic-affiliation { color: var(--copy); margin: 20px 0 0; font-size: 16px; line-height: 1.45; }
.challenge-page .ic-affiliation a { color: inherit; }
.challenge-page .ic-hero-gallery { grid-area: gallery; min-width: 0; }
.challenge-page .ic-hero-photo { min-width: 0; margin: 0; }
.challenge-page .ic-hero-photo .ic-photo { aspect-ratio: 1.5; }
.challenge-page .ic-photo { display: block; background: #eef2f4; cursor: zoom-in; }
.challenge-page .ic-photo img { display: block; width: 100%; height: auto; }
.challenge-page .ic-hero-photo img { width: 100%; height: 100%; object-fit: contain; }
.challenge-page svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; flex: 0 0 auto; }
.challenge-page :is(button, a, summary, input):focus-visible { outline: 3px solid var(--yellow); outline-offset: 4px; }
.challenge-page .ic-overview { border-top: 1px solid var(--ic-border); }
.challenge-page .ic-overview-grid, .challenge-page .ic-section-intro { display: grid; grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr); gap: clamp(35px, 7vw, 110px); align-items: start; }
.challenge-page .ic-overview-grid h2 { max-width: 22ch; }
.challenge-page .ic-question { margin: 48px 0 0; background: #edf4f8; border-left: 4px solid var(--blue); padding: clamp(25px, 3vw, 48px); color: var(--blue-deep); font-size: clamp(23px, 2.6vw, 37px); font-weight: 400; line-height: 1.35; letter-spacing: -.015em; }
.challenge-page .ic-overview-close { margin: 29px 0 0 auto; max-width: 900px; }
.challenge-page .ic-celebration { background: var(--ic-paper); }
.challenge-page .ic-celebration-photo { max-width: 1100px; margin: 44px auto 0; }
.challenge-page .ic-winners h2 { max-width: 27ch; }
.challenge-page .ic-winner-tabs { display: none; gap: 12px; margin: 35px 0 40px; }
.challenge-page.ic-interactive .ic-winner-tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); grid-auto-rows: 1fr; }
.challenge-page .ic-winner-tabs button { min-height: 106px; padding: 18px; border: 1px solid var(--ic-border); background: white; color: var(--blue-deep); font-size: 20px; line-height: 1.3; font-weight: 700; text-align: left; }
.challenge-page .ic-prize { display: block; margin-top: 5px; font-size: clamp(27px, 2.5vw, 36px); line-height: 1.15; font-weight: 700; letter-spacing: -.025em; }
.challenge-page .ic-winner-tabs button[aria-selected="true"] { color: white; background: var(--blue-deep); border-color: var(--blue-deep); }
.challenge-page .ic-winner-panel { margin-top: 45px; }
.challenge-page .ic-winner-panel h3 { color: var(--blue-deep); font-size: clamp(31px, 3.3vw, 50px); font-weight: 600; line-height: 1.15; letter-spacing: -.03em; max-width: 34ch; }
.challenge-page .ic-award-label { margin-bottom: 15px; color: var(--blue); font-size: 24px; font-weight: 600; }
.challenge-page.ic-interactive .ic-award-label { display: none; }
.challenge-page .ic-winner-description { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(30px, 6vw, 95px); margin-top: 29px; }
.challenge-page .ic-students { color: var(--copy); font-size: 18px; line-height: 1.65; }
.challenge-page .ic-student-name { color: var(--blue-deep); font-size: 23px; font-weight: 700; line-height: 1.5; }
.challenge-page .ic-winner-photos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: 35px; }
.challenge-page .ic-winner-photos figure { margin: 0; }
.challenge-page .ic-winner-photos .ic-photo { aspect-ratio: 1.503; }
.challenge-page .ic-winner-photos img { height: 100%; object-fit: contain; }
.challenge-page .ic-timeline { background: var(--ic-paper); }
.challenge-page .ic-timeline > .container > h2 { max-width: 42ch; font-size: clamp(28px, 2.8vw, 38px); line-height: 1.2; }
.challenge-page #ic-timeline-heading { scroll-margin-top: 110px; }
/* Short dated entries, joined continuously across rows. */
.challenge-page .ic-timeline-wrap { --ic-connector-inset: 18px; position: relative; margin-top: 34px; }
.challenge-page .ic-schedule { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 34px 30px; list-style: none; margin: 0; padding: 0; }
.challenge-page .ic-timeline-item { position: relative; min-width: 0; padding-bottom: 4px; }
.challenge-page .ic-timeline-item::before { content: ''; position: absolute; top: 12px; left: 25px; right: -30px; height: 1px; background: #a8c1d1; }
.challenge-page .ic-timeline-item:nth-child(4n)::before, .challenge-page .ic-timeline-item:last-child::before { display: none; }
.challenge-page .ic-connected .ic-timeline-item::before { display: none; }
.challenge-page .ic-timeline-step { position: relative; display: grid; place-items: center; width: 25px; height: 25px; border: 1px solid var(--blue); border-radius: 50%; color: var(--blue); background: var(--ic-paper); font-size: 12px; font-weight: 600; }
.challenge-page .ic-timeline-item h4 { margin-top: 10px; color: var(--blue-deep); font-size: 20px; font-weight: 600; line-height: 1.45; letter-spacing: 0; overflow-wrap: break-word; }
.challenge-page .ic-timeline-item time { display: inline-block; margin-top: 8px; color: var(--copy); font-size: 15px; line-height: 1.5; }
.challenge-page .ic-timeline-deadline time { padding: 4px 8px; background: #ffe8a2; color: var(--blue-deep); font-weight: 600; }
.challenge-page .ic-timeline-deadline .ic-timeline-step { background: var(--blue); color: white; }
.challenge-page .ic-timeline-connector { position: absolute; left: calc(-1 * var(--ic-connector-inset)); top: 0; width: calc(100% + 2 * var(--ic-connector-inset)); max-width: none; height: 100%; pointer-events: none; overflow: visible; }
.challenge-page .ic-timeline-connector path { fill: none; stroke: #a8c1d1; stroke-width: 1.5; }
/* One source photograph per phase, with descriptions beside it and dates below. */
.challenge-page .ic-timeline-phases { margin-top: 40px; }
.challenge-page .ic-timeline-phase { padding: clamp(24px, 3vw, 40px); background: white; border: 1px solid var(--ic-border); }
.challenge-page .ic-timeline-phase + .ic-timeline-phase { margin-top: 28px; }
.challenge-page .ic-timeline-phase-header { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(28px, 4vw, 56px); }
.challenge-page .ic-timeline-phase-header h3 { color: var(--blue-deep); font-size: clamp(24px, 2.3vw, 30px); line-height: 1.3; letter-spacing: -.02em; }
.challenge-page .ic-timeline-phase-header h3 span { display: block; width: fit-content; margin-bottom: 14px; padding: 5px 10px; background: #eaf2f7; color: var(--blue); font-size: 15px; font-weight: 600; letter-spacing: 0; }
.challenge-page .ic-phase-description { min-width: 0; max-width: none; font-size: 18px; line-height: 1.7; }
.challenge-page .ic-phase-visual { min-width: 0; }
.challenge-page .ic-phase-photo { margin: 22px 0 0; max-width: 430px; }
.challenge-page .ic-phase-photo img { width: 100%; height: auto; }
.challenge-page .ic-phase-photo figcaption { margin-top: 8px; color: var(--copy); font-size: 13px; line-height: 1.5; }
.challenge-page .ic-timeline-phase .ic-timeline-step { background: white; }
.challenge-page .ic-timeline-phase .ic-timeline-deadline .ic-timeline-step { background: var(--blue); }
.challenge-page .ic-timeline-finale { padding: 20px; background: var(--ic-paper); border-left: 3px solid var(--blue); }
.challenge-page .ic-timeline-finale .ic-schedule { grid-template-columns: 1fr; }
.challenge-page .ic-timeline-finale .ic-timeline-item { display: grid; grid-template-columns: 25px 1fr auto; align-items: center; gap: 14px; padding: 0; }
.challenge-page .ic-timeline-finale .ic-timeline-item h4, .challenge-page .ic-timeline-finale .ic-timeline-item time { margin: 0; }
.challenge-page .ic-timeline-finale time { color: var(--blue-deep); font-weight: 600; }
.challenge-page .ic-phase-description p + p { margin-top: 15px; }
.challenge-page .ic-milestone-link { display: block; width: fit-content; margin-top: 10px; color: var(--blue-deep); font-size: 15px; line-height: 1.6; text-decoration: underline; text-underline-offset: 4px; }
.challenge-page .ic-proposal-note { margin-top: 26px; padding: 20px 24px; background: #fff2cc; color: var(--blue-deep); font-size: 17px; line-height: 1.65; }
.challenge-page .ic-proposal-note p { margin: 0; }
.challenge-page .ic-proposal-note strong { font-weight: 700; }
.challenge-page .ic-resources { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 35px; }
.challenge-page .ic-resource { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding: 25px 28px; min-height: 104px; border: 1px solid var(--ic-border); color: var(--blue-deep); background: white; font-size: 21px; line-height: 1.35; }
.challenge-page .ic-resource:hover { border-color: var(--blue); }
.challenge-page .ic-resource span { max-width: 32ch; font-weight: 600; }
.challenge-page .ic-continuation { margin: 28px 0 0; max-width: 1000px; }
.challenge-page .ic-contact { background: #e8f1f6; }
.challenge-page .ic-contact-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(35px, 6vw, 100px); }
.challenge-page .ic-contact h2 { max-width: 28ch; font-size: clamp(29px, 2.8vw, 43px); }
.challenge-page .ic-contact h2 a { color: inherit; }
.challenge-page .ic-contact .ic-email { display: inline-block; margin-top: 25px; font-size: clamp(20px, 2.2vw, 30px); line-height: 1.3; overflow-wrap: anywhere; }
.challenge-page .ic-supporters h2 { font-size: clamp(27px, 2.5vw, 37px); max-width: 54ch; line-height: 1.25; }
.challenge-page .ic-supporters ul { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 26px; list-style: none; padding: 0; margin: 45px 0 0; }
.challenge-page .ic-supporters li { display: grid; place-items: center; min-width: 0; }
.challenge-page .ic-supporters img { display: block; width: 100%; height: 165px; object-fit: contain; }
.challenge-page .ic-faq { border-top: 1px solid var(--ic-border); }
.challenge-page .ic-faq-head { display: flex; justify-content: space-between; align-items: center; gap: 30px; }
.challenge-page .ic-faq-search { width: min(340px, 100%); flex: 0 0 auto; }
.challenge-page .ic-faq-search input { display: block; width: 100%; border: 1px solid var(--ic-border); border-radius: 0; background: white; color: var(--blue-deep); font: inherit; font-size: 17px; min-height: 49px; padding: 12px 16px; }
.challenge-page .ic-faq-tabs { display: none; gap: 12px; margin-top: 30px; }
.challenge-page.ic-interactive .ic-faq-tabs { display: flex; }
.challenge-page .ic-faq-tabs button { padding: 12px 19px; border: 1px solid var(--ic-border); background: white; font-size: 18px; color: var(--blue-deep); }
.challenge-page .ic-faq-tabs button[aria-selected="true"] { border-color: var(--blue-deep); background: var(--blue-deep); color: white; }
.challenge-page .ic-faq-group { margin-top: 27px; }
.challenge-page .ic-faq-category { font-size: 25px; color: var(--blue-deep); margin-bottom: 18px; }
.challenge-page.ic-interactive .ic-faq-category { display: none; }
.challenge-page .ic-faq-item { border-top: 1px solid var(--ic-border); }
.challenge-page .ic-faq-item:last-child { border-bottom: 1px solid var(--ic-border); }
.challenge-page .ic-faq-item > summary { display: flex; justify-content: space-between; align-items: center; gap: 25px; list-style: none; padding: 23px 0; cursor: pointer; color: var(--blue-deep); }
.challenge-page .ic-faq-item > summary::-webkit-details-marker { display: none; }
.challenge-page .ic-faq-question { font-size: 22px; line-height: 1.35; font-weight: 500; max-width: 70ch; }
.challenge-page .ic-faq-item[open] > summary svg { transform: rotate(45deg); }
.challenge-page .ic-faq-item > .ic-prose { padding: 0 44px 25px 0; max-width: 1080px; }
.challenge-page .ic-faq-item [data-faq-copy] { white-space: pre-line; }
.challenge-page .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; }
.challenge-page .ic-lightbox { position: fixed; inset: 0; margin: auto; border: 0; padding: 62px 28px 20px; width: min(1280px, calc(100vw - 30px)); max-width: calc(100vw - 30px); max-height: calc(100dvh - 30px); overflow: auto; background: white; color: var(--blue-deep); }
.challenge-page .ic-lightbox::backdrop { background: rgba(29, 56, 76, .86); }
.challenge-page .ic-lightbox > img { display: block; max-width: 100%; max-height: calc(100dvh - 170px); width: auto; height: auto; object-fit: contain; margin-inline: auto; }
.challenge-page .ic-lightbox > p { margin-top: 17px; text-align: center; font-size: 15px; }
.challenge-page #ic-lightbox-close { position: absolute; right: 10px; top: 9px; width: 44px; height: 44px; display: grid; place-items: center; color: var(--blue-deep); background: white; border: 1px solid var(--ic-border); font-size: 27px; line-height: 1; }
@media (max-width: 1100px) {
  .challenge-page .ic-schedule { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .challenge-page .ic-timeline-phase-header { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .challenge-page .ic-timeline-item:nth-child(2n)::before { display: none; }
}
@media (max-width: 1000px) {
  .challenge-page .ic-hero-grid, .challenge-page .ic-overview-grid, .challenge-page .ic-section-intro, .challenge-page .ic-contact-grid { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .challenge-page .ic-hero-grid { grid-template-areas: "heading" "gallery" "message"; }
  .challenge-page .ic-hero h1 { max-width: 22ch; }
  .challenge-page .ic-hero-slide .ic-photo { aspect-ratio: 1.6; }
  .challenge-page .ic-hero-gallery { max-width: 760px; width: 100%; }
  .challenge-page .ic-overview-grid h2, .challenge-page .ic-section-intro h2 { max-width: 30ch; }
  .challenge-page .ic-winner-description { grid-template-columns: minmax(0, 1fr); gap: 22px; }
}
@media (max-width: 700px) {
  .challenge-page .ic-section { padding-block: 45px; }
  .challenge-page .ic-hero { padding-block: 38px 42px; }
  .challenge-page .ic-hero h1 { font-size: clamp(40px, 10.4vw, 56px); max-width: 17ch; }
  .challenge-page .ic-organization, .challenge-page .ic-intro-copy, .challenge-page .ic-prose, .challenge-page .ic-students { font-size: 17px; }
  .challenge-page .ic-organization { margin-bottom: 19px; }
  .challenge-page .ic-intro-copy { margin-top: 0; }
  .challenge-page .ic-register { width: 100%; justify-content: center; text-align: center; }
  .challenge-page .ic-view-timeline { width: 100%; justify-content: center; margin-left: 0; margin-top: 9px; }
  .challenge-page .ic-affiliation { font-size: 15px; }
  .challenge-page .ic-hero-grid { gap: 31px; }
  .challenge-page .ic-hero-slide .ic-photo { aspect-ratio: 1.5; }
  .challenge-page .ic-question { margin-top: 29px; padding: 25px 22px; font-size: 24px; }
  .challenge-page .ic-overview-close { margin-top: 25px; }
  .challenge-page .ic-celebration-photo { margin-top: 29px; }
  .challenge-page.ic-interactive .ic-winner-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; margin: 27px 0 30px; }
  .challenge-page .ic-winner-tabs button { min-height: 98px; padding: 13px; font-size: 18px; }
  .challenge-page .ic-prize { font-size: 29px; }
  .challenge-page .ic-student-name { font-size: 21px; }
  .challenge-page .ic-winner-panel { margin-top: 30px; }
  .challenge-page .ic-winner-photos { grid-template-columns: minmax(0, 1fr); gap: 16px; margin-top: 27px; }
  .challenge-page #ic-timeline-heading { scroll-margin-top: 85px; }
  .challenge-page .ic-timeline-wrap { --ic-connector-inset: 10px; margin-top: 28px; }
  .challenge-page .ic-schedule { gap: 28px 20px; }
  .challenge-page .ic-timeline-item h4 { font-size: 18px; }
  .challenge-page .ic-timeline-item time { font-size: 14px; }
  .challenge-page .ic-proposal-note { padding: 18px; font-size: 16px; }
  .challenge-page .ic-timeline-phase { padding: 20px 18px; }
  .challenge-page .ic-timeline-phase + .ic-timeline-phase { margin-top: 20px; }
  .challenge-page .ic-phase-photo { max-width: 100%; }
  .challenge-page .ic-timeline-finale .ic-timeline-item { grid-template-columns: 25px 1fr; }
  .challenge-page .ic-timeline-finale .ic-timeline-item time { grid-column: 2; }
  .challenge-page .ic-resources { grid-template-columns: minmax(0, 1fr); gap: 12px; margin-top: 27px; }
  .challenge-page .ic-resource { padding: 23px 20px; font-size: 20px; min-height: 96px; }
  .challenge-page .ic-supporters ul { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; margin-top: 33px; }
  .challenge-page .ic-supporters img { height: 140px; }
  .challenge-page .ic-supporters li:last-child { grid-column: 1 / -1; max-width: 180px; width: 100%; margin-inline: auto; }
  .challenge-page .ic-faq-head { display: block; }
  .challenge-page .ic-faq-search { display: block; width: 100%; margin-top: 25px; }
  .challenge-page .ic-faq-question { font-size: 19px; }
  .challenge-page .ic-faq-item > summary { padding-block: 20px; gap: 15px; }
  .challenge-page .ic-faq-item > .ic-prose { padding-right: 0; }
  .challenge-page .ic-lightbox { width: calc(100vw - 16px); max-width: calc(100vw - 16px); padding: 62px 12px 20px; }
}
@media (prefers-reduced-motion: reduce) {
}

.challenge-page .ic-faq-status { margin-top: 22px; color: var(--copy); font-size: 17px; }
.challenge-page .ic-faq-status:empty { display: none; }