:root {
  --bg:        #03060d;
  --bg-alt:    #070c17;
  --line:      rgba(126, 147, 175, 0.16);
  --line-soft: rgba(126, 147, 175, 0.10);
  --ink:       #e9eef6;
  --ink-dim:   #93a5bd;
  --ink-mute:  #6d7f98;
  --cyan:      #3fd0f5;
  --rule:      #00265a;
  --blue:      #2a7de1;
  --shell:     1240px;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  font-family: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  color: var(--ink);
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }

::selection { background: var(--blue); color: #ffffff; }

a { text-decoration: none; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.cta__button:focus-visible { outline-offset: 4px; }

/* Scroll reveal animations */
.rv { --rv-delay: 0s; }
.js .rv {
  opacity: 0;
  transform: translateY(18px);
}
.js .rv.in { animation: rv-in 0.55s ease var(--rv-delay) both; }
.d1 { --rv-delay: 0.08s; }
.d2 { --rv-delay: 0.16s; }
.d3 { --rv-delay: 0.24s; }
@keyframes rv-in {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .rv, .rv.in,
  .js .rv, .js .rv.in { opacity: 1; transform: none; animation: none; }
}

/* ── Layout shell ── */
.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

/* ── Header ── */
.site-header {
  border-bottom: 1px solid var(--rule);
}
.site-header__inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-header__logo img {
  height: 40px;
  width: auto;
}
.site-header__event {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.2;
}
.site-header__event img {
  height: 40px;
  width: auto;
}

/* ── Hero ── */
.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  --kv-bleed: clamp(20px, calc((100vw - var(--shell)) / 2 + 20px), 112px);
  min-height: clamp(560px, 80vh, 860px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, var(--shell)) minmax(0, 1fr);
  align-items: center;
  background: var(--bg);
}
.hero__aura {
  position: absolute;
  inset: 0;
  z-index: -3;
  background-color: #04070d;
  background-image: linear-gradient(135deg, transparent 35%, rgba(59, 130, 246, 0.12) 50%, transparent 65%);
}
.hero__aura::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.7;
  background-image:
    linear-gradient(90deg, transparent 49%, rgba(59, 130, 246, 0.14) 49%, rgba(59, 130, 246, 0.14) 51%, transparent 51%),
    linear-gradient(0deg,  transparent 49%, rgba(59, 130, 246, 0.10) 49%, rgba(59, 130, 246, 0.10) 51%, transparent 51%);
  background-size: 80px 80px;
  -webkit-mask-image: radial-gradient(ellipse 82% 84% at 56% 44%, #000 10%, rgba(0, 0, 0, 0.45) 58%, transparent 92%);
  mask-image: radial-gradient(ellipse 82% 84% at 56% 44%, #000 10%, rgba(0, 0, 0, 0.45) 58%, transparent 92%);
  animation: aura-drift 38s linear infinite;
}

@keyframes aura-drift {
  from { background-position: 0 0, 0 0; }
  to   { background-position: 80px 80px, 80px 80px; }
}
@media (prefers-reduced-motion: reduce) {
  .hero__aura::before { animation: none; }
}
.hero__media {
  grid-area: 1 / 2;
  justify-self: end;
  align-self: center;
  /* Bleeds past the shell's right edge and is clipped by .hero, so the section
     is never wider than the viewport and .hero__inner stays aligned. */
  margin-right: calc(-1 * var(--kv-bleed));
  /* Frozen like the rest of the page, which is capped at --shell. */
  width: min(720px, 100%);
  z-index: -2;
  mix-blend-mode: screen;
  animation: kv-in 1.1s ease both;
}
.hero__media img {
  display: block;
  width: 100%;
  height: auto;
  -webkit-mask-image:
    linear-gradient(to right, transparent 0%, #000 10%, #000 92%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, #000 9%, #000 90%, transparent 100%);
  mask-image:
    linear-gradient(to right, transparent 0%, #000 10%, #000 92%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, #000 9%, #000 90%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
}
@keyframes kv-in {
  from { opacity: 0; transform: scale(1.04); }
  to   { opacity: 1; transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .hero__media { animation: none; }
}
.hero__scrim {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(96deg, rgba(3, 6, 13, 0.94) 2%, rgba(3, 6, 13, 0.8) 22%, rgba(3, 6, 13, 0.36) 38%, rgba(3, 6, 13, 0) 54%),
    linear-gradient(to bottom, rgba(3, 6, 13, 0.5) 0%, rgba(3, 6, 13, 0) 24%, rgba(3, 6, 13, 0) 70%, var(--bg) 100%);
}
.hero__inner {
  grid-area: 1 / 2;
  position: relative;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 72px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
}
.hero__h1 {
  margin: 0;
  font-size: clamp(52px, 8vw, 96px);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #ffffff;
  text-shadow: 0 2px 40px rgba(3, 6, 13, 0.9);
}
@media (min-width: 901px) and (max-width: 1279px) {
  .hero__h1-split { display: block; }
}

.hero__tagline {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: clamp(17px, 1.6vw, 23px);
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--cyan);
}

/* ── Invitation ── */
.lede {
  border-top: 1px solid var(--line-soft);
  background: var(--bg);
}
.lede__inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(72px, 9vw, 116px) 24px;
  display: flex;
  flex-direction: column;
  gap: 44px;
}
.lede__text {
  margin: 0;
  font-size: clamp(25px, 3vw, 36px);
  line-height: 1.28;
  font-weight: 500;
  letter-spacing: -0.025em;
  color: #ffffff;
  text-wrap: balance;
}
.lede__cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 36px 64px;
  padding-top: 40px;
  border-top: 1px solid var(--line-soft);
}
.lede__cols p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-dim);
}
.lede__cols strong {
  color: var(--ink);
  font-weight: 600;
}

/* ── Showcase ── */
.showcase {
  border-top: 1px solid var(--line-soft);
  background-color: var(--bg-alt);
  background-image:
    radial-gradient(ellipse 40% 56% at 24% 62%, rgba(6, 182, 212, 0.26) 0%, transparent 68%),
    radial-gradient(ellipse 40% 54% at 80% 40%, rgba(14, 165, 233, 0.20) 0%, transparent 68%),
    radial-gradient(ellipse 56% 46% at 54% 0%, rgba(99, 102, 241, 0.16) 0%, transparent 70%),
    radial-gradient(ellipse 38% 40% at 66% 100%, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
}
.showcase__inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(72px, 9vw, 96px) 24px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.showcase__heading {
  margin: 0;
  margin-bottom: 1em;
  font-size: clamp(24px, 1.8vw, 32px);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: #ffffff;
  text-wrap: balance;
  text-align: center;
}
.showcase__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.show-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 34px;
  padding: 32px;
  transition: background 0.3s ease;
}
.show-row + .show-row {
  border-left: 1px solid var(--line-soft);
}
.show-row:hover {
  background: linear-gradient(180deg, rgba(42, 125, 225, 0.09), rgba(42, 125, 225, 0) 78%);
}
.show-row__icon {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  height: 76px;
  transition: filter 0.3s ease, transform 0.3s ease;
}
.show-row__icon img {
  height: 100%;
  width: auto;
}
.show-row:hover .show-row__icon {
  filter: drop-shadow(0 0 14px rgba(63, 208, 245, 0.4));
  transform: translateY(-2px);
}
.show-row__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.show-row__title {
  margin: 0;
  min-height: 2.4em;
  font-size: clamp(24px, 2.4vw, 34px);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #ffffff;
  text-wrap: balance;
}
.show-row__desc {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-dim);
}

/* ── Event info ── */
.event {
  border-top: 1px solid var(--line-soft);
  background: var(--bg);
}
.event__inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(64px, 8vw, 100px) 24px;
  display: grid;
  grid-template-columns: 1.2fr 1.1fr 0.6fr;
  gap: 48px;
}
.event__item {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-left: 32px;
  border-left: 1px solid var(--line);
}
.event__item:first-child {
  padding-left: 0;
  border-left: none;
}
.event__label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.event__value {
  font-size: clamp(25px, 2.5vw, 34px);
  line-height: 1.16;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: #ffffff;
  text-wrap: balance;
}
.event__value--accent {
  color: var(--cyan);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.event__sub {
  font-size: 15px;
  color: var(--ink-dim);
}

/* ── CTA ── */
.cta {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line-soft);
  background:
    radial-gradient(ellipse 60% 100% at 50% 118%, rgba(42, 125, 225, 0.26), rgba(3, 6, 13, 0) 70%),
    var(--bg);
}
.cta__inner {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(80px, 9vw, 116px) 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 30px;
}
.cta__body {
  margin: 0;
  font-size: clamp(20px, 2.1vw, 28px);
  line-height: 1.5;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: #ffffff;
  text-wrap: balance;
}
.cta__body a {
  color: var(--cyan);
  font-weight: 500;
  border-bottom: 1px solid rgba(63, 208, 245, 0.4);
}
.cta__body a:hover { border-bottom-color: var(--cyan); }
.cta__button {
  display: inline-flex;
  align-items: center;
  padding: 18px 40px;
  background: transparent;
  border: 1px solid rgba(63, 208, 245, 0.5);
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background 0.25s, border-color 0.25s;
}
.cta__button:hover {
  background: rgba(63, 208, 245, 0.1);
  border-color: var(--cyan);
}
.cta__note {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-mute);
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--rule);
  margin-top: auto;
}
.site-footer__inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 28px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.site-footer__logo img {
  height: 30px;
  width: auto;
}
.site-footer__social {
  display: flex;
  align-items: center;
  gap: 22px;
}
.site-footer__social img {
  height: 22px;
  width: auto;
  filter: invert(100%) brightness(50%);
}
.site-footer__social a:hover img,
.site-footer__social a:focus-visible img {
  filter: invert(100%) brightness(100%);
}

/* ── Responsive ───────────────────────────────────────── */

@media (max-width: 1080px) {
  .show-row {
    gap: 26px;
    padding: 26px;
  }
  .show-row__icon { height: 72px; }
}

/* Hero drops the overlay composition and stacks */
@media (max-width: 900px) {
  .hero {
    min-height: auto;
    display: block;
  }
  .hero__media {
    height: auto;
    width: 100%;
    margin-right: 0;
    aspect-ratio: auto;
    animation: none;
  }
  .hero__media img { height: auto; }
  .hero__scrim {
    background: linear-gradient(to bottom, rgba(3, 6, 13, 0) 55%, var(--bg) 100%);
  }
  .hero__inner {
    padding: 8px 24px 64px;
    gap: 22px;
  }
  .hero__h1 { font-size: clamp(46px, 12vw, 72px); }
  .hero__tagline { font-size: clamp(16px, 4.3vw, 21px); }

  .lede__cols {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .lede__text { font-size: clamp(24px, 5.4vw, 34px); }

  .event__inner {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .event__item {
    padding: 26px 0;
    border-left: none;
    border-top: 1px solid var(--line);
  }
  .event__item:first-child {
    padding-top: 0;
    border-top: none;
  }

  .showcase__list {
    grid-template-columns: 1fr;
  }
  .show-row {
    gap: 24px;
    padding: 38px 0;
  }
  .show-row__title { min-height: 0; }
  .show-row + .show-row {
    border-left: none;
    border-top: 1px solid var(--line-soft);
  }
}

@media (max-width: 640px) {
  .hero__aura::before { background-size: 52px 52px; }

  .site-header__logo img { height: 30px; }
  .site-header__event img { height: 30px; }

  .show-row__icon {
    height: 64px;
  }
  .show-row__title { font-size: clamp(22px, 6vw, 28px); }

  .cta__button {
    width: 100%;
    justify-content: center;
  }
}