:root {
  --night: #10183f;
  --deep: #080d25;
  --cream: #fff5cf;
  --yellow: #ffe14a;
  --orange: #ff713d;
  --coral: #ff4f72;
  --teal: #12e5d0;
  --lime: #b8f332;
  --ink: #171a2e;
  --sans: Arial, Helvetica, sans-serif;
  --display: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--night); color: var(--cream); font-family: var(--sans); overflow-x: hidden; }
img { display: block; width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }

.skip-link { position: fixed; top: 12px; left: 12px; z-index: 100; padding: 10px 14px; background: white; color: black; transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.section-pad { padding: clamp(85px, 13vw, 170px) max(7vw, 24px); }
.kicker { margin: 0 0 20px; font-size: .72rem; font-weight: 900; letter-spacing: .21em; text-transform: uppercase; }

.hero { position: relative; min-height: 100svh; display: grid; place-items: start center; overflow: hidden; text-align: center; isolation: isolate; }
.hero__background { position: absolute; inset: -5%; z-index: -3; background: url('assets/neon-volcano-hero.webp') center 56% / cover no-repeat; transform: translate3d(0, var(--hero-shift, 0), 0) scale(1.05); }
.hero__veil { position: absolute; inset: 0; z-index: -2; background: rgba(5, 8, 30, .18); box-shadow: inset 0 -260px 180px -120px rgba(5,8,30,.9); }
.hero__content { width: min(94%, 760px); padding-top: clamp(90px, 13vh, 145px); text-shadow: 0 4px 22px rgba(8, 13, 37, .82); }
.hero .kicker { color: var(--yellow); }
.hero__title { margin: 0; text-transform: uppercase; font: 900 clamp(4.9rem, 18vw, 11rem)/.69 var(--display); letter-spacing: -.035em; transform: rotate(-2deg); }
.hero__title span { display: block; color: var(--yellow); }
.hero__title strong { display: block; color: var(--orange); font-size: 1.17em; -webkit-text-stroke: 2px var(--cream); paint-order: stroke fill; }
.hero__theme { width: max-content; max-width: 95%; margin: 18px auto 0; padding: 8px 18px; background: var(--teal); color: var(--night); transform: rotate(1.5deg); font: 900 clamp(1.2rem, 5vw, 2.4rem) var(--display); letter-spacing: .08em; text-transform: uppercase; text-shadow: none; }
.hero__date { margin: 22px 0 0; font-size: clamp(.7rem, 2vw, .92rem); font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.quest-button { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); min-width: 190px; padding: 16px 20px; background: var(--lime); color: var(--night); text-decoration: none; font-size: .73rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; box-shadow: 7px 7px 0 var(--coral); }
.quest-button.reveal.is-visible { transform: translateX(-50%); }
.quest-button:hover, .quest-button:focus-visible { background: var(--cream); box-shadow: 4px 4px 0 var(--teal); }

.mission { min-height: 88svh; display: grid; align-content: center; justify-items: center; gap: 70px; background: var(--cream); color: var(--ink); text-align: center; }
.mission__intro { width: min(760px, 100%); }
.mission h2, .section-heading h2, .rsvp h2 { margin: 0; font: 900 clamp(3.5rem, 9vw, 7.2rem)/.86 var(--display); letter-spacing: -.03em; text-transform: uppercase; }
.mission__intro > p:not(.kicker):not(.guest-message) { width: min(610px, 100%); margin: 35px auto 0; font-size: clamp(1.05rem, 2vw, 1.35rem); line-height: 1.7; }
.guest-message { width: max-content; max-width: 100%; margin: 30px auto 0; padding: 12px 18px; background: var(--teal); font-weight: 900; transform: rotate(-1deg); }
.countdown { display: flex; gap: clamp(22px, 7vw, 85px); }
.countdown div { display: grid; gap: 6px; }
.countdown strong { color: var(--ink); font: 900 clamp(2.5rem, 7vw, 5rem) var(--display); }
.countdown span { font-size: .64rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }

.coordinates { min-height: 90svh; padding: clamp(85px, 13vw, 160px) max(7vw,24px); display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 60px; background: var(--coral); color: var(--night); }
.coordinates > .kicker { grid-column: 1 / -1; align-self: start; }
.coordinates h2 { margin: 0; font: 900 clamp(5rem, 16vw, 12rem)/.72 var(--display); letter-spacing: -.05em; text-transform: uppercase; }
.coordinates__details { padding: 34px 0; border-top: 4px solid var(--night); border-bottom: 4px solid var(--night); font-size: 1rem; line-height: 1.6; }
.coordinates__details strong { font: 900 2rem var(--display); text-transform: uppercase; }
.coordinates__details a { display: inline-block; margin-top: 18px; font-size: .7rem; font-weight: 900; letter-spacing: .15em; text-transform: uppercase; }

.challenges { background: var(--night); }
.section-heading { width: min(900px, 100%); margin-bottom: clamp(60px, 9vw, 105px); }
.challenges .kicker { color: var(--teal); }
.challenge-list { width: min(1000px, 100%); margin-left: auto; }
.challenge-list article { display: grid; grid-template-columns: 100px 1fr; gap: clamp(25px, 6vw, 80px); padding: 32px 0; border-top: 2px solid rgba(255,255,255,.25); }
.challenge-list article:last-child { border-bottom: 2px solid rgba(255,255,255,.25); }
.challenge-list article > span { color: var(--lime); font: 900 1.7rem var(--display); }
.challenge-list h3 { margin: 0 0 10px; color: var(--yellow); font: 900 clamp(2rem, 5vw, 3.4rem) var(--display); text-transform: uppercase; }
.challenge-list p { margin: 0; line-height: 1.6; color: rgba(255,245,207,.75); }

.basecamp { position: relative; min-height: 92svh; display: flex; align-items: center; overflow: hidden; isolation: isolate; }
.basecamp > img { position: absolute; inset: 0; z-index: -3; height: 100%; object-fit: cover; }
.basecamp__veil { position: absolute; inset: 0; z-index: -2; background: rgba(5, 8, 30, .28); box-shadow: inset 500px 0 260px -250px rgba(5,8,30,.96); }
.basecamp__copy { width: min(520px, 82%); margin-left: max(7vw,24px); text-shadow: 0 3px 18px rgba(0,0,0,.85); }
.basecamp h2 { margin: 0 0 24px; color: var(--yellow); font: 900 clamp(3.4rem, 9vw, 7rem)/.86 var(--display); text-transform: uppercase; }
.basecamp p:last-child { font-size: 1.08rem; line-height: 1.65; }

.gear { background: var(--teal); color: var(--night); }
.gear__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.gear article { padding: 28px; background: var(--cream); box-shadow: 9px 9px 0 var(--night); }
.gear article:nth-child(2) { transform: translateY(24px) rotate(-1deg); background: var(--yellow); }
.gear article:nth-child(3) { transform: rotate(1deg); background: var(--coral); }
.gear article > span { font-size: .65rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.gear h3 { margin: 30px 0 10px; font: 900 2rem var(--display); text-transform: uppercase; }
.gear p { margin: 0; line-height: 1.6; }

.rsvp { min-height: 100svh; display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(60px, 10vw, 140px); background: var(--deep); }
.rsvp__heading { align-self: start; position: sticky; top: 80px; }
.rsvp .kicker { color: var(--lime); }
.rsvp__form { display: grid; align-content: start; gap: 28px; }
.rsvp fieldset { margin: 0; padding: 0; border: 0; }
.rsvp legend, .field > span { display: block; margin-bottom: 12px; font-size: .68rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.choice-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.choice-row label { cursor: pointer; }
.choice-row input { position: absolute; opacity: 0; pointer-events: none; }
.choice-row span { display: grid; min-height: 70px; place-items: center; padding: 12px; border: 2px solid var(--teal); text-align: center; font-weight: 900; }
.choice-row input:checked + span { background: var(--teal); color: var(--night); }
.choice-row input:focus-visible + span { outline: 3px solid var(--yellow); outline-offset: 3px; }
.field input, .field select, .field textarea { width: 100%; border: 0; border-bottom: 2px solid rgba(255,255,255,.38); border-radius: 0; padding: 13px 0; background: transparent; color: var(--cream); outline: 0; }
.field select option { color: var(--night); }
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--teal); }
.rsvp button { min-height: 60px; padding: 16px 24px; border: 0; background: var(--lime); color: var(--night); cursor: pointer; font-size: .72rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; box-shadow: 7px 7px 0 var(--coral); }
.rsvp button:hover { background: var(--yellow); }
.success { align-self: center; }
.success p { line-height: 1.65; }
.rsvp .secondary { margin-top: 18px; background: transparent; color: var(--cream); border: 2px solid var(--teal); box-shadow: none; }

footer { display: flex; justify-content: space-between; gap: 20px; padding: 50px max(7vw,24px); background: var(--orange); color: var(--night); text-transform: uppercase; }
footer strong { font: 900 1.5rem var(--display); }
footer span { font-size: .68rem; font-weight: 900; letter-spacing: .13em; }
footer a { color: inherit; }

.demo-notice { position: fixed; left: 1rem; right: 1rem; bottom: 1rem; z-index: 20; display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; justify-content: center; padding: .75rem 1rem; border: 2px solid var(--teal); background: rgba(16,24,63,.94); color: var(--cream); font-size: .88rem; }
.demo-notice a { color: var(--yellow); font-weight: 900; }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity .75s ease, transform .75s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (min-width: 900px) {
  .hero__background { background-position: center 50%; }
  .basecamp > img { object-position: center 56%; }
}

@media (max-width: 760px) {
  .hero__content { padding-top: 10vh; }
  .hero__title { font-size: clamp(4.8rem, 27vw, 7rem); }
  .hero__theme { font-size: 1.2rem; }
  .hero__date { font-size: .62rem; }
  .coordinates { grid-template-columns: 1fr; align-content: center; }
  .coordinates > .kicker { grid-column: auto; }
  .challenge-list article { grid-template-columns: 60px 1fr; }
  .basecamp > img { object-position: 62% center; }
  .basecamp__veil { background: rgba(5,8,30,.42); box-shadow: inset 260px 0 180px -150px rgba(5,8,30,.95); }
  .gear__grid { grid-template-columns: 1fr; }
  .gear article:nth-child(2), .gear article:nth-child(3) { transform: none; }
  .rsvp { grid-template-columns: 1fr; }
  .rsvp__heading { position: static; }
  .choice-row { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}

@media (max-width: 340px) {
  .section-pad,
  .coordinates,
  footer {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero__background {
    inset: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__background { transform: scale(1.05); }
}