:root {
  --ink: #080911;
  --paper: #f2efe8;
  --gold: #f1bc42;
  --indigo: #5b5fe2;
  --green: #47dc90;
  --muted: #a9aab6;
  --surface: #10111d;
  --line: rgba(169, 170, 182, 0.18);
  --headline: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  --body: "Geist", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: dark; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--paper);
  font: 400 1rem/1.55 var(--body);
  -webkit-font-smoothing: antialiased;
}
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; background: var(--paper); color: var(--ink); padding: .75rem 1rem; border-radius: .6rem; }
.skip-link:focus { top: 1rem; }

.site-header, main, footer { width: min(1180px, calc(100% - 3rem)); margin-inline: auto; }
.site-header { position: absolute; z-index: 20; top: 0; left: 50%; transform: translateX(-50%); min-height: 5.75rem; display: flex; align-items: center; justify-content: space-between; background: transparent; }
.site-header .mark { color: var(--paper); text-shadow: 0 2px 16px rgba(0,0,0,.65); }
.mark { text-decoration: none; font: 600 1.35rem/1 var(--headline); letter-spacing: -.06em; }
.button { border: 1px solid transparent; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; gap: .9rem; min-height: 3.4rem; padding: .85rem 1.35rem; font-weight: 650; cursor: pointer; transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease; }
.button:hover { transform: translateY(-2px); }
.button:focus-visible, .icon-button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, a:focus-visible { outline: 3px solid var(--indigo); outline-offset: 3px; }
.button--primary { background: var(--gold); color: var(--ink); box-shadow: 0 12px 40px rgba(241, 188, 66, .14); }
.button--primary:hover { background: #ffc64a; box-shadow: 0 16px 50px rgba(241, 188, 66, .22); }
.button--small { min-height: 2.65rem; padding: .55rem 1rem; background: var(--paper); color: var(--ink); }

.hero { position: relative; isolation: isolate; width: 100vw; min-height: 100vh; min-height: 100svh; margin-left: calc(50% - 50vw); padding: max(7rem, 9vw) max(1.5rem, calc((100vw - 1180px) / 2)) 4rem; display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); gap: clamp(2rem, 6vw, 6.5rem); align-items: center; overflow: hidden; background: linear-gradient(90deg, rgba(8,9,17,.94), rgba(8,9,17,.75)), url("assets/hero-london-poster.jpg") center / cover no-repeat; }
.hero::before { content: ""; position: absolute; z-index: -1; inset: 0; background: linear-gradient(90deg, rgba(8,9,17,.92) 0%, rgba(8,9,17,.78) 48%, rgba(8,9,17,.68) 100%), linear-gradient(0deg, rgba(8,9,17,.86), rgba(8,9,17,.34) 55%, rgba(8,9,17,.58)); pointer-events: none; }
.hero__background { position: absolute; z-index: -2; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; pointer-events: none; }
.hero__copy, .hero__media { position: relative; z-index: 1; min-width: 0; }
.hero__copy { text-shadow: 0 2px 20px rgba(0,0,0,.4); }
.hero .microcopy { color: #c5c5cc; }
.eyebrow { margin: 0 0 1.2rem; color: var(--gold); text-transform: uppercase; letter-spacing: .13em; font-size: .76rem; font-weight: 650; }
.eyebrow span { display: inline-block; width: .45rem; height: .45rem; border-radius: 50%; background: var(--green); box-shadow: 0 0 18px rgba(71, 220, 144, .65); margin-right: .45rem; }
h1, h2 { margin: 0; font-family: var(--headline); font-weight: 500; letter-spacing: -.055em; line-height: .96; text-wrap: balance; }
h1 { font-size: clamp(3.25rem, 6.5vw, 6.6rem); }
h1 em { color: var(--gold); font-style: normal; }

@media (min-width: 821px) {
  .hero h1 { font-size: clamp(3.25rem, 5.4vw, 4.875rem); }
}
.lede { max-width: 38rem; margin: 1.7rem 0 2rem; color: #d3d2d5; font-size: clamp(1.05rem, 1.5vw, 1.28rem); }
.microcopy { color: var(--muted); font-size: .78rem; margin: .8rem 0 0; }

.hero__media { display: grid; gap: 1rem; }
.video-shell { position: relative; }
.video-shell::before { content: ""; position: absolute; inset: -1px; border-radius: 1.7rem; padding: 1px; background: linear-gradient(125deg, rgba(241,188,66,.75), rgba(91,95,226,.85), rgba(91,95,226,0)); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; }
.video-shell iframe, .video-placeholder { width: 100%; aspect-ratio: 16 / 10; border: 0; border-radius: 1.7rem; }
.video-placeholder { position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: space-between; padding: clamp(1.3rem, 3vw, 2.25rem); background: radial-gradient(circle at 70% 30%, rgba(91,95,226,.32), transparent 32%), linear-gradient(145deg, #151625, #0d0e18); }
.video-placeholder::after { content: ""; position: absolute; inset: 0; opacity: .13; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 3rem 3rem; mask-image: linear-gradient(to bottom right, #000, transparent 75%); }
.video-placeholder__glow { position: absolute; width: 14rem; height: 14rem; right: 5%; top: 8%; border-radius: 50%; background: var(--gold); filter: blur(95px); opacity: .17; }
.video-placeholder__mark { position: relative; z-index: 1; align-self: flex-end; color: rgba(242,239,232,.16); font: 600 clamp(4rem, 11vw, 9rem)/1 var(--headline); letter-spacing: -.08em; }
.video-placeholder__caption { position: relative; z-index: 1; display: flex; align-items: center; gap: 1rem; }
.video-placeholder__caption span:last-child { display: grid; gap: .16rem; }
.video-placeholder__caption small { color: var(--muted); }
.play { width: 3.5rem; height: 3.5rem; flex: 0 0 3.5rem; border-radius: 50%; display: grid; place-items: center; padding-left: .15rem; background: var(--paper); color: var(--ink); }

.motion-ready .hero__copy > * { animation: hero-enter 620ms cubic-bezier(.22, 1, .36, 1) backwards; }
.motion-ready .hero__copy > :nth-child(2) { animation-delay: 70ms; }
.motion-ready .hero__copy > :nth-child(3) { animation-delay: 140ms; }
.motion-ready .hero__copy > :nth-child(4) { animation-delay: 210ms; }
.motion-ready .hero__copy > :nth-child(5) { animation-delay: 260ms; }
.motion-ready .hero__media { animation: hero-media-enter 760ms 130ms cubic-bezier(.22, 1, .36, 1) backwards; }
.motion-ready [data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity 520ms ease-out var(--reveal-delay, 0ms), transform 620ms cubic-bezier(.22, 1, .36, 1) var(--reveal-delay, 0ms); }
.motion-ready [data-reveal].is-visible { opacity: 1; transform: translateY(0); }
@keyframes hero-enter { from { opacity: 0; transform: translateY(14px); } }
@keyframes hero-media-enter { from { opacity: 0; transform: translateY(12px) scale(.99); } }

.event-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1rem; padding: 1rem; background: rgba(16,17,29,.82); border: 1px solid var(--line); border-radius: 1rem; }
.event-card__date { width: 3.6rem; height: 3.6rem; display: grid; place-content: center; text-align: center; border: 1px solid rgba(91,95,226,.55); border-radius: .75rem; background: rgba(91,95,226,.08); }
.event-card__date span { color: var(--indigo); font-size: .6rem; font-weight: 700; letter-spacing: .14em; }
.event-card__date strong { font: 500 1.35rem/1.05 var(--headline); }
.event-card__copy .eyebrow { margin-bottom: .22rem; font-size: .62rem; }
.event-card__copy h2 { font-size: 1.18rem; letter-spacing: -.025em; line-height: 1.15; }
.event-card__copy p:last-child { max-width: 26rem; margin: .28rem 0 0; color: var(--muted); font-size: .76rem; line-height: 1.4; }
.event-link { padding: .62rem .85rem; border: 1px solid var(--line); border-radius: 999px; color: var(--paper); font-size: .72rem; font-weight: 650; text-decoration: none; white-space: nowrap; }
.event-link.is-disabled { color: var(--muted); cursor: not-allowed; opacity: .72; }

.founder-note { position: relative; display: grid; grid-template-columns: 9rem 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; margin-top: clamp(2rem, 5vw, 4.5rem); padding: clamp(2rem, 5vw, 4rem); overflow: hidden; background: linear-gradient(135deg, rgba(241,188,66,.08), rgba(91,95,226,.09) 58%, rgba(16,17,29,.82)); border: 1px solid var(--line); border-radius: 1.5rem; }
.founder-note::after { content: "“"; position: absolute; right: 2rem; top: -3.75rem; color: rgba(242,239,232,.045); font: 500 14rem/1 var(--headline); pointer-events: none; }
.founder-note__portrait { position: relative; z-index: 1; width: 9rem; aspect-ratio: 1; padding: 3px; border-radius: 50%; background: linear-gradient(135deg, var(--gold), var(--indigo)); box-shadow: 0 20px 60px rgba(0,0,0,.32); }
.founder-note__portrait img { width: 100%; height: 100%; display: block; object-fit: cover; border-radius: inherit; background: var(--paper); }
.founder-note figure { position: relative; z-index: 1; margin: 0; }
.founder-note .eyebrow { margin-bottom: .6rem; }
.founder-note blockquote { max-width: 850px; margin: 0; font: 500 clamp(1.7rem, 3vw, 2.8rem)/1.12 var(--headline); letter-spacing: -.045em; text-wrap: balance; }
.founder-note figcaption { margin-top: 1.25rem; color: var(--muted); font-size: .88rem; }
.founder-note figcaption span { color: var(--gold); margin-inline: .35rem; }

.signal { display: grid; grid-template-columns: minmax(15rem, .72fr) minmax(0, 1.28fr); column-gap: clamp(3rem, 8vw, 7rem); padding: clamp(5rem, 9vw, 8rem) 0; border-bottom: 1px solid var(--line); }
.signal__intro { align-self: start; }
.signal__intro .eyebrow { margin-bottom: .55rem; }
.signal__intro h2 { max-width: 8ch; font-size: clamp(2.6rem, 5vw, 4.8rem); }
.signal__intro > p { max-width: 22rem; margin: 1.3rem 0 0; color: var(--muted); font-size: 1rem; }
.fit-list { display: grid; grid-column: 2; border-top: 1px solid var(--line); }
.fit-item { display: grid; grid-template-columns: auto 1fr; gap: 1.15rem; align-items: start; min-width: 0; padding: 1.5rem .25rem; }
.fit-item + .fit-item { border-top: 1px solid var(--line); }
.fit-item svg { width: 1.7rem; height: 1.7rem; margin-top: .1rem; color: var(--indigo); }
.fit-item:first-child svg { color: var(--gold); }
.fit-item:last-child svg { color: var(--green); }
.fit-item p { display: grid; gap: .1rem; margin: 0; }
.fit-item strong { color: var(--paper); font: 500 1.12rem/1.25 var(--headline); }
.fit-item span { color: var(--muted); font-size: .92rem; line-height: 1.45; }
.format-list { grid-column: 2; margin: 1.5rem 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: .6rem; }
.format-list li { padding: .66rem .92rem; border: 1px solid var(--line); border-radius: 999px; color: #d6d6dc; font-size: .84rem; background: rgba(16,17,29,.55); }
.format-list li::before { content: "•"; color: var(--green); margin-right: .45rem; }
.signal__action { grid-column: 2; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.signal__action p { max-width: 20rem; margin: 0; color: var(--muted); font-size: .9rem; }
.button--outline { min-height: 2.9rem; padding: .65rem 1rem; color: var(--paper); background: transparent; border-color: rgba(242,239,232,.35); }
.button--outline:hover { border-color: var(--gold); background: rgba(241,188,66,.06); }

.topics { padding: clamp(5rem, 9vw, 8rem) 0; }
.topics__heading { display: grid; grid-template-columns: auto 1fr; align-items: end; gap: clamp(2rem, 7vw, 6rem); margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.topics__heading .eyebrow { margin: 0 0 .5rem; }
.topics__heading h2 { max-width: 11ch; font-size: clamp(2.7rem, 5.4vw, 5.25rem); }
.topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; counter-reset: topic; }
.topic-card { position: relative; min-height: 17rem; display: grid; grid-template-rows: 1fr auto auto; align-content: end; padding: 1.6rem; overflow: hidden; background: linear-gradient(155deg, rgba(255,255,255,.035), rgba(16,17,29,.92)); border: 1px solid var(--line); border-radius: 1.2rem; counter-increment: topic; }
.topic-card::before { content: "0" counter(topic); position: absolute; right: 1.25rem; top: 1rem; color: rgba(242,239,232,.16); font: 500 .74rem/1 var(--headline); letter-spacing: .12em; }
.topic-card:nth-child(2) { transform: translateY(1.5rem); background: linear-gradient(145deg, rgba(91,95,226,.18), var(--surface) 64%); }
.topic-card:nth-child(3) { transform: translateY(3rem); }
.topic-card__icon { width: 2.2rem; height: 2.2rem; align-self: start; color: var(--indigo); }
.topic-card:first-child .topic-card__icon { color: var(--gold); }
.topic-card:last-child .topic-card__icon { color: var(--green); }
.topic-card h3 { max-width: 12ch; margin: 2rem 0 .45rem; font: 500 1.45rem/1.12 var(--headline); letter-spacing: -.03em; }
.topic-card p { max-width: 24ch; margin: 0; color: var(--muted); font-size: .9rem; }

.closing { display: grid; grid-template-columns: 1fr auto; gap: 3rem; align-items: center; margin: 3rem 0 5rem; padding: clamp(2rem, 5vw, 4rem); background: linear-gradient(120deg, rgba(91,95,226,.15), rgba(241,188,66,.09)); border: 1px solid var(--line); border-radius: 1.5rem; }
.closing .eyebrow { margin-bottom: .65rem; }
.closing h2 { max-width: 760px; font-size: clamp(2.2rem, 4.5vw, 4rem); }
.closing .button { justify-self: end; }
footer { border-top: 1px solid var(--line); min-height: 7.5rem; display: grid; grid-template-columns: auto 1fr auto; gap: 2rem; align-items: center; color: var(--muted); font-size: .82rem; }
footer p { margin: 0; }
footer p:nth-child(2) { text-align: center; }
footer a:hover { color: var(--paper); }

dialog { width: min(760px, calc(100% - 1.5rem)); max-height: calc(100dvh - 1.5rem); margin: auto; padding: 0; color: var(--paper); background: var(--surface); border: 1px solid rgba(91,95,226,.42); border-radius: 1.4rem; box-shadow: 0 30px 100px rgba(0,0,0,.55); }
dialog::backdrop { background: rgba(3, 4, 10, .8); backdrop-filter: blur(8px); }
.dialog-header { position: sticky; z-index: 3; top: 0; display: flex; justify-content: space-between; align-items: flex-start; gap: 2rem; padding: 1.6rem clamp(1.25rem, 4vw, 2.5rem); background: rgba(16,17,29,.96); border-bottom: 1px solid var(--line); }
.dialog-header .eyebrow { margin-bottom: .55rem; }
.dialog-header h2 { font-size: clamp(2.4rem, 6vw, 4rem); }
.dialog-header p:last-child { color: var(--muted); margin: .7rem 0 0; }
.icon-button { flex: 0 0 auto; width: 2.6rem; height: 2.6rem; border: 1px solid var(--line); border-radius: 50%; color: var(--paper); background: transparent; font-size: 1.7rem; line-height: 1; cursor: pointer; }
.reach-form-shell { min-height: 14rem; padding: 1rem clamp(.35rem, 2vw, 1.25rem) 1.5rem; overflow-x: hidden; }
[data-reach-form] { width: 100%; min-width: 0; }
[data-reach-form] iframe { width: 100% !important; max-width: 100%; display: block; }
.embed-message { margin: 1rem; padding: 1rem; color: var(--muted); border: 1px solid var(--line); border-radius: .75rem; }

@media (max-width: 820px) {
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 7rem; gap: 2.5rem; }
  .signal { grid-template-columns: 1fr; gap: 2.5rem; }
  .signal__intro h2 { max-width: 10ch; }
  .fit-list, .format-list, .signal__action { grid-column: 1; }
  .topic-grid { grid-template-columns: 1fr; }
  .topic-card { min-height: 12rem; }
  .topic-card:nth-child(2), .topic-card:nth-child(3) { transform: none; }
  .closing { grid-template-columns: 1fr; }
  .closing .button { justify-self: start; }
  footer { grid-template-columns: auto 1fr; padding: 1.5rem 0; }
  footer p:nth-child(2) { text-align: right; }
  footer p:last-child { display: none; }
}
@media (max-width: 560px) {
  .site-header, main, footer { width: min(100% - 2rem, 1180px); }
  .site-header .button { font-size: .78rem; }
  .hero { padding-top: 6.5rem; padding-bottom: 3.5rem; }
  h1 { font-size: clamp(3rem, 14.5vw, 4.4rem); }
  .hero__copy .button, .closing .button { width: 100%; }
  .video-shell iframe, .video-placeholder { aspect-ratio: 16 / 10; border-radius: 1.2rem; }
  .video-placeholder__caption small { display: block; font-size: .7rem; }
  .play { width: 3rem; height: 3rem; flex-basis: 3rem; }
  .event-card { grid-template-columns: auto 1fr; }
  .event-link { grid-column: 1 / -1; text-align: center; }
  .founder-note { grid-template-columns: 1fr; gap: 1.5rem; padding: 1.5rem; }
  .founder-note__portrait { width: 5.5rem; }
  .founder-note blockquote { font-size: 1.45rem; }
  .format-list { display: grid; }
  .signal__action { align-items: flex-start; flex-direction: column; }
  .topics { padding-block: 4.5rem; }
  .topics__heading { grid-template-columns: 1fr; gap: .4rem; }
  .closing { margin: 0 0 3rem; padding: 1.5rem; }
  .reach-form-shell { padding-inline: 0; }
  dialog { border-radius: 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; }
  .hero__background { display: none; }
}