.hackathon-page { background: #f8fafc; }
.hackathon-hero { position: relative; overflow: hidden; background: linear-gradient(135deg, #fbfdff 0%, #eef8ff 55%, #f5f1ff 100%); }
.hackathon-hero::before { content: ""; position: absolute; inset: 0; opacity: .35; background-image: linear-gradient(rgba(14,165,233,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(14,165,233,.16) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(90deg, #000, transparent 76%); }
.hackathon-hero-inner { position: relative; width: min(1180px, calc(100% - 3rem)); min-height: 690px; margin: auto; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 3rem; padding: 5rem 0; }
.hackathon-hero-copy { position: relative; z-index: 2; }
.hackathon-hero h1 { font-size: clamp(4rem, 7vw, 7rem); }
.hackathon-subtitle { margin: -1rem 0 1.2rem; color: var(--sky-dark); font-size: clamp(1.3rem, 2vw, 1.8rem); font-weight: 850; letter-spacing: .02em; }
.pilot-notice { display: inline-flex; flex-wrap: wrap; gap: .35rem; margin: 2rem 0 0; padding: .7rem 1rem; border: 1px solid #badcec; border-radius: 12px; color: #28445c; background: rgba(255,255,255,.76); font-size: .82rem; }
.build-good-art { position: relative; min-height: 500px; }
.hero-student-image { position: absolute; inset: 1.5rem 0; width: 100%; height: calc(100% - 3rem); display: block; object-fit: cover; border: 7px solid rgba(255,255,255,.78); border-radius: 30px; box-shadow: 0 28px 70px rgba(15,23,42,.2); }
.image-hero::after { content: ""; position: absolute; inset: 1.5rem 0; border-radius: 30px; background: linear-gradient(180deg, transparent 60%, rgba(8,18,34,.38)); pointer-events: none; }
.image-hero .build-path, .image-hero .block-stack { display: none; }
.image-hero .impact-orb { left: 16%; top: 77%; width: 145px; height: 145px; border: 4px solid rgba(255,255,255,.85); }
.image-hero .impact-orb small { font-size: .55rem; }.image-hero .impact-orb strong { font-size: 1rem; }
.impact-orb { position: absolute; z-index: 3; left: 50%; top: 47%; width: 240px; height: 240px; display: grid; align-content: center; justify-items: center; transform: translate(-50%,-50%); border-radius: 50%; color: white; background: radial-gradient(circle at 32% 22%, #426082, #172640 58%, #0c1527); box-shadow: 0 30px 70px rgba(15,23,42,.28); text-align: center; }
.impact-orb::before { content: ""; position: absolute; inset: 15px; border: 1px solid rgba(255,255,255,.17); border-radius: inherit; }
.impact-orb small { color: #7dd3fc; font-weight: 900; letter-spacing: .18em; }
.impact-orb strong { margin-top: .6rem; font-size: 1.65rem; line-height: 1.12; text-transform: uppercase; }
.build-path { position: absolute; left: 50%; top: 47%; width: 440px; height: 290px; border: 2px dashed rgba(14,165,233,.3); border-radius: 50%; transform: translate(-50%,-50%) rotate(-18deg); }
.path-b { width: 510px; height: 390px; border-color: rgba(139,124,246,.25); transform: translate(-50%,-50%) rotate(25deg); }
.block-stack { position: absolute; z-index: 4; min-width: 128px; padding: .8rem; border: 1px solid rgba(203,213,225,.9); border-radius: 18px; background: rgba(255,255,255,.92); box-shadow: 0 18px 42px rgba(15,23,42,.13); text-align: center; }
.block-stack i { width: 36px; height: 30px; display: inline-block; position: relative; margin: 0 -1px; border-radius: 5px; background: var(--coral); box-shadow: inset 0 -5px rgba(0,0,0,.08); }
.block-stack i::before, .block-stack i::after { content: ""; position: absolute; top: -5px; width: 10px; height: 6px; border-radius: 4px 4px 0 0; background: inherit; }
.block-stack i::before { left: 6px; }.block-stack i::after { right: 6px; }
.block-stack span { display: block; margin-top: .35rem; color: var(--ink); font-size: .72rem; font-weight: 800; }
.block-school { left: 0; top: 12%; transform: rotate(-3deg); }.block-community { right: -1%; top: 21%; transform: rotate(3deg); }.block-community i { background: var(--violet); }.block-planet { right: 10%; bottom: 7%; transform: rotate(-2deg); }.block-planet i { background: var(--mint); }
.section-jump { width: 100%; min-height: 70px; display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: .5rem 1.3rem; padding: 1rem 1.5rem; border-block: 1px solid var(--line); background: white; }
.section-jump a { color: var(--slate); font-size: .78rem; font-weight: 750; text-decoration: none; }.section-jump a:hover { color: var(--sky-dark); }
.hack-section { width: min(1180px, calc(100% - 3rem)); margin: 0 auto; padding: 7rem 0; scroll-margin-top: 76px; }
.hack-heading { max-width: 780px; margin-bottom: 2.2rem; }.hack-heading h2, .safety-principle h2, .register-copy h2 { margin-bottom: 1rem; font-size: clamp(2.5rem, 4.8vw, 4.5rem); line-height: 1; }.hack-heading > p:last-child { color: var(--slate); }
.track-tabs { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: .8rem; }
.track-tab { min-height: 130px; padding: 1.25rem; border: 1px solid var(--line); border-radius: 20px; color: var(--slate); background: white; cursor: pointer; text-align: left; transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease; }
.track-tab:hover { transform: translateY(-2px); border-color: #94a3b8; }.track-tab.active { border-color: var(--sky-dark); color: var(--ink); box-shadow: 0 16px 38px rgba(15,23,42,.1); }
.track-tab strong, .track-tab span, .track-tab small { display: block; }.track-tab strong { font-size: 1.05rem; }.track-tab span { margin-top: .25rem; font-size: .8rem; }.recommended-label { width: fit-content; margin-top: .7rem; padding: .25rem .5rem; border-radius: 999px; color: #58460e; background: #fff0b9; font-weight: 800; }
.track-summary { margin-top: .9rem; padding: .75rem; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: clamp(1.2rem,3vw,2.4rem); border: 1px solid #cde7f4; border-radius: 24px; background: #eef9ff; }.track-summary-copy { padding: 1rem 1rem 1rem 0; }.track-summary h3 { margin-bottom: .4rem; font-size: 1.35rem; }.track-message { color: var(--slate); }.track-focus { display: flex; flex-wrap: wrap; gap: .45rem; margin: 1rem 0 0; padding: 0; list-style: none; }.track-focus li { padding: .4rem .65rem; border-radius: 999px; color: var(--sky-dark); background: white; font-size: .73rem; font-weight: 750; }.track-illustration { position: relative; overflow: hidden; min-height: 260px; margin: 0; border-radius: 18px; background: #dbeafe; }.track-illustration img { width: 100%; height: 100%; min-height: 260px; display: block; object-fit: cover; }.track-illustration figcaption { position: absolute; left: .8rem; right: .8rem; bottom: .8rem; padding: .55rem .7rem; border: 1px solid rgba(255,255,255,.3); border-radius: 10px; color: white; background: rgba(15,23,42,.76); backdrop-filter: blur(8px); font-size: .68rem; font-weight: 700; }
.challenge-section { padding-top: 3rem; }.challenge-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 1rem; }.challenge-card { display: flex; flex-direction: column; padding: 1.4rem; border: 1px solid var(--line); border-radius: 24px; background: white; box-shadow: 0 12px 35px rgba(15,23,42,.055); }.challenge-card-top { display: flex; justify-content: space-between; gap: .5rem; margin-bottom: 1.3rem; }.challenge-grade, .challenge-level { color: var(--sky-dark); font-size: .66rem; font-weight: 850; text-transform: uppercase; letter-spacing: .07em; }.challenge-level { color: #68549e; }.challenge-card h3 { margin-bottom: .7rem; font-size: 1.55rem; line-height: 1.05; }.challenge-card > p { color: var(--slate); font-size: .88rem; }.challenge-facts { margin: auto 0 1.3rem; padding-top: 1rem; }.challenge-facts dt { color: var(--soft-slate); font-size: .63rem; font-weight: 800; text-transform: uppercase; letter-spacing: .07em; }.challenge-facts dd { margin: 0 0 .65rem; font-size: .78rem; }.challenge-action { width: 100%; padding: .7rem 1rem; border: 0; border-radius: 999px; color: white; background: var(--ink); cursor: pointer; font-weight: 800; }.challenge-action:hover { background: var(--sky-dark); }
.journey-section { width: 100%; padding-inline: max(1.5rem,calc((100% - 1180px)/2)); color: white; background: var(--navy); }.journey-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: .7rem; padding: 0; list-style: none; }.journey-grid li { min-height: 270px; overflow: hidden; border: 1px solid rgba(255,255,255,.14); border-radius: 18px; background: rgba(255,255,255,.07); }.journey-grid img { width: 100%; aspect-ratio: 4/3; display: block; object-fit: cover; }.journey-copy { min-height: 96px; padding: .9rem 1rem 1.1rem; }.journey-grid span { display: block; margin-bottom: .55rem; color: #7dd3fc; font-size: .7rem; font-weight: 900; }.journey-grid strong { display: block; font-size: .95rem; line-height: 1.25; }.format-programs { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 2rem; }.program-card { padding: 1.5rem; border-radius: 22px; color: var(--ink); background: white; }.program-card h3 { margin-bottom: 1rem; font-size: 1.4rem; }.program-card ol { margin: 0; padding-left: 1.3rem; color: var(--slate); }.program-card li { padding: .25rem; }
.safety-principle { max-width: 850px; padding: clamp(2rem,5vw,4rem); border-radius: 30px; background: #e8f9f4; }.safety-principle > p:last-child { margin: 0; color: #185c4e; font-size: 1.15rem; font-weight: 750; }.safety-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 1rem; margin-top: 1rem; }.safety-layout > div, .safety-notice { padding: 2rem; border: 1px solid var(--line); border-radius: 24px; background: white; }.safety-layout h3 { font-size: 1.3rem; }.check-list { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; padding: 0; list-style: none; }.check-list li { position: relative; padding: .8rem .8rem .8rem 2.25rem; border-radius: 14px; background: var(--paper); font-size: .82rem; }.check-list li::before { content: "✓"; position: absolute; left: .75rem; color: #18846d; font-weight: 900; }.safety-notice { color: white; background: #27364c; }.safety-notice p { color: #dbe7f5; font-size: .85rem; }
.rubric-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 24px; background: white; }.rubric-wrap table { width: 100%; border-collapse: collapse; }.rubric-wrap caption { padding: 1.3rem; color: var(--soft-slate); font-size: .75rem; text-align: left; }.rubric-wrap th, .rubric-wrap td { padding: 1.1rem 1.3rem; border-top: 1px solid var(--line); text-align: left; }.rubric-wrap thead th { color: var(--soft-slate); font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; }.rubric-wrap td { width: 110px; color: var(--sky-dark); font-size: 1.1rem; font-weight: 900; }
.recognition-section { padding-top: 2rem; }.recognition-layout { display: grid; grid-template-columns: 1fr .8fr; gap: 1rem; }.recognition-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }.recognition-chip { min-height: 88px; display: flex; align-items: center; padding: 1rem; border: 1px solid var(--line); border-radius: 18px; background: white; font-weight: 800; }.recognition-chip:nth-child(3n+1) { border-top: 5px solid var(--coral); }.recognition-chip:nth-child(3n+2) { border-top: 5px solid var(--sky); }.recognition-chip:nth-child(3n+3) { border-top: 5px solid var(--mint); }.benefit-card { padding: 1.5rem; border-radius: 22px; color: white; background: var(--navy); }.benefit-card h3 { font-size: 1.25rem; }.benefit-card li { margin-bottom: .5rem; }.benefit-card p { color: #cbd5e1; font-size: .78rem; }
.faq-section { padding-top: 3rem; }.faq-list { display: grid; gap: .65rem; }.faq-list details { padding: 1rem 1.2rem; border: 1px solid var(--line); border-radius: 16px; background: white; }.faq-list summary { cursor: pointer; font-weight: 800; }.faq-list p { max-width: 880px; margin-bottom: .3rem; color: var(--slate); }
.adult-instruction { padding: 1rem; border-left: 4px solid var(--gold); background: rgba(255,255,255,.07); font-weight: 750; }
.challenge-dialog { width: min(760px,calc(100% - 2rem)); max-height: calc(100vh - 2rem); padding: 0; border: 0; border-radius: 24px; color: var(--ink); box-shadow: 0 30px 90px rgba(0,0,0,.35); }.challenge-dialog::backdrop { background: rgba(7,13,24,.72); backdrop-filter: blur(3px); }.dialog-shell { position: relative; padding: clamp(1.4rem,4vw,3rem); }.dialog-close { position: sticky; z-index: 2; left: 100%; top: 0; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 50%; background: white; cursor: pointer; font-size: 1.6rem; line-height: 1; }.dialog-eyebrow { margin: -2rem 3rem 1rem 0; color: var(--sky-dark); font-size: .7rem; font-weight: 850; text-transform: uppercase; letter-spacing: .08em; }.dialog-shell h2 { margin-bottom: .8rem; font-size: clamp(2rem,5vw,3.5rem); line-height: 1; }.dialog-lede { color: var(--slate); font-size: 1.05rem; }.dialog-section { padding: 1rem 0; border-top: 1px solid var(--line); }.dialog-section h3 { margin-bottom: .45rem; font-size: 1.05rem; }.dialog-section p, .dialog-section li { color: var(--slate); font-size: .84rem; }.dialog-mission { margin-bottom: .5rem; padding: 1rem; border: 0; border-radius: 15px; background: var(--sky-soft); }.dialog-done { margin-top: 1rem; }
@media (max-width: 950px) { .hackathon-hero-inner { grid-template-columns: 1fr; }.build-good-art { min-height: 450px; }.challenge-grid { grid-template-columns: 1fr 1fr; }.journey-grid { grid-template-columns: 1fr 1fr; }.safety-layout, .recognition-layout { grid-template-columns: 1fr; }.track-tabs { grid-template-columns: 1fr; }.track-summary { grid-template-columns: 1fr; }.track-summary-copy { padding: .5rem 1rem 1rem; } }
@media (max-width: 760px) { .hackathon-nav > a:not(.nav-cta) { display: none; }.hackathon-hero-inner, .hack-section { width: min(100% - 1.5rem,100%); }.hackathon-hero-inner { padding-top: 4rem; }.hackathon-hero h1 { font-size: clamp(3.5rem,17vw,5rem); }.build-good-art { min-height: 370px; }.image-hero .impact-orb { left: 18%; top: 79%; }.challenge-grid, .format-programs, .check-list, .recognition-grid { grid-template-columns: 1fr; }.journey-grid { grid-template-columns: 1fr 1fr; }.hack-section { padding-block: 5rem; }.journey-section { width: 100%; } }
@media (max-width: 460px) { .build-good-art { min-height: 300px; }.hero-student-image, .image-hero::after { inset-block: .5rem; height: calc(100% - 1rem); }.image-hero .impact-orb { width: 110px; height: 110px; left: 20%; top: 78%; }.image-hero .impact-orb small { display: none; }.section-jump { justify-content: flex-start; }.journey-grid { grid-template-columns: 1fr; }.journey-grid li { min-height: 0; }.challenge-dialog { width: calc(100% - 1rem); }.dialog-shell { padding: 1rem; } }
@media (prefers-reduced-motion: reduce) { .track-tab:hover { transform: none; } }

/* Pilot-readiness layout and progressive disclosure */
.official-name { margin: -.45rem 0 1rem; color: var(--soft-slate); font-size: .8rem; font-weight: 800; }
.pilot-summary-section { padding-bottom: 3rem; }
.pilot-facts { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: .75rem; margin: 0; }
.pilot-facts div { min-height: 105px; padding: 1rem; border: 1px solid var(--line); border-radius: 18px; background: white; }
.pilot-facts dt { color: var(--soft-slate); font-size: .68rem; font-weight: 850; letter-spacing: .07em; text-transform: uppercase; }
.pilot-facts dd { margin: .5rem 0 0; color: var(--ink); font-size: .92rem; font-weight: 800; }
.audience-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: .75rem; margin-top: 1.25rem; }
.audience-grid a { min-height: 140px; padding: 1.2rem; border-radius: 20px; color: var(--ink); background: var(--sky-soft); text-decoration: none; }
.audience-grid a:nth-child(2) { background: #eef9f5; }.audience-grid a:nth-child(3) { background: #f3efff; }
.audience-grid strong, .audience-grid span { display: block; }.audience-grid strong { margin-bottom: .55rem; font-size: 1.05rem; }.audience-grid span { color: var(--slate); font-size: .82rem; }
.journey-toggle { display: none; margin: 1rem auto 0; border: 1px solid rgba(255,255,255,.55); color: white; background: transparent; }
.program-card { padding: 0; }.program-card summary { padding: 1.5rem; cursor: pointer; font-size: 1.3rem; font-weight: 850; }.program-card ol { padding: 0 2.8rem 1.5rem; }
.adult-supervision { margin: 1rem 0; padding: 1rem 1.2rem; border-left: 5px solid var(--coral); border-radius: 0 14px 14px 0; color: #5c2c23; background: #fff1ed; font-weight: 800; }
.content-disclosure { padding: 0 !important; }.content-disclosure summary, .judging-disclosure > summary { padding: 1.5rem 2rem; cursor: pointer; font-size: 1.15rem; font-weight: 850; }.content-disclosure .check-list { padding: 0 2rem 2rem; }
.prepare-section { padding-top: 4rem; }.learning-path { display: flex; flex-wrap: wrap; gap: .65rem; align-items: center; width: fit-content; padding: 1rem 1.2rem; border-radius: 16px; color: #253c56; background: #e9f7ff; font-weight: 850; }.learning-path span { color: var(--sky-dark); }
.mentor-guidance { max-width: 780px; margin-top: 2rem; padding: 1.3rem 1.5rem; border-left: 5px solid var(--violet); border-radius: 0 18px 18px 0; background: #f3efff; }.mentor-guidance h3 { margin-bottom: .45rem; }.mentor-guidance p { margin: 0; color: var(--slate); }
.judging-disclosure { margin-bottom: 1.5rem; border: 1px solid var(--line); border-radius: 22px; background: white; }.judging-disclosure > p, .judging-disclosure > .rubric-wrap { margin-inline: 1.5rem; }.judging-disclosure > p { color: var(--slate); font-weight: 700; }.judging-disclosure > .rubric-wrap { margin-bottom: 1.5rem; }
.updates-section { width: 100%; padding-inline: max(1.5rem,calc((100% - 1180px)/2)); color: white; background: linear-gradient(145deg,#14223a,#0d1729); }.updates-card { max-width: 850px; }.updates-card h2 { font-size: clamp(2.5rem,4.8vw,4.5rem); line-height: 1; }.updates-card > p { color: #d0deee; }.updates-card .adult-instruction { color: white; }.updates-note { margin-top: 1rem; font-size: .78rem; }
.faq-toggle { margin-top: 1.2rem; }.faq-list [hidden] { display: none; }
.organizer-section { padding-top: 4rem; }.trust-list { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: .7rem; }.trust-list div { padding: 1rem; border: 1px solid var(--line); border-radius: 16px; background: white; }.trust-list dt { color: var(--soft-slate); font-size: .68rem; font-weight: 850; text-transform: uppercase; }.trust-list dd { margin: .45rem 0 0; font-weight: 750; }.policy-links { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1rem; }.policy-links a { font-weight: 800; }.policy-status { margin-top: 1rem; padding: 1rem; border-radius: 14px; color: #684d00; background: #fff5cf; font-size: .82rem; }
.hackathon-page :is(a,button,summary,[tabindex]):focus-visible { outline: 3px solid #0284c7; outline-offset: 3px; }

@media (max-width: 950px) { .pilot-facts, .trust-list { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width: 760px) {
  .pilot-facts, .audience-grid, .trust-list { grid-template-columns: 1fr; }
  .journey-grid:not(.show-all) li:nth-child(n+5) { display: none; }
  .journey-toggle { display: block; }
  .learning-path { align-items: flex-start; flex-direction: column; }
  .learning-path span { transform: rotate(90deg); }
}
@media (max-width: 460px) { .pilot-facts div { min-height: 0; }.content-disclosure summary, .judging-disclosure > summary { padding: 1rem; }.content-disclosure .check-list { padding: 0 1rem 1rem; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; } }