/* bin cleaning summit 2027 */

/* tokens */
:root {
  /* - surface - */
  --bg:             #000510;
  --bg-deep:        #00030A;
  --panel-top:      #203851;
  --panel-bot:      #07172E;
  --panel-flat:     #0C1B30;

  /* - blue: structure, chrome, edges - */
  --blue:           #1D81FF;
  --blue-light:     #60C1FF;
  --blue-pale:      #8FCFFF;
  --blue-deep:      #1C4FCF;
  --blue-line:      #0F47D3;
  --blue-glow:      #1482F7;
  --stroke:         #4E7596;
  --stroke-hi:      #7BA6CE;
  --stroke-lo:      #24405C;

  --lime:           #C1F439;
  --lime-mid:       #8CC91D;
  --lime-deep:      #54AE00;
  --lime-bevel:     #2E5E00;

  /* - type colour - */
  --text:           #FFFFFF;
  --text-body:      #A5A5A5;
  --text-muted:     #9AA5AD;
  --text-dim:       #5E7488;

  /* - families - */
  --font-body:      "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display:   "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-cond:      "Oswald", "Archivo Narrow", "Arial Narrow", sans-serif;
  /* nexa is the licensed brand face; archivo is the fallback until it is hosted. */
  --font-heavy:     "Nexa", "Archivo", "Inter", sans-serif;

  /* - metrics - */
  --shell:          1252px;
  --shell-wide:     1388px;
  --gutter:         clamp(20px, 5vw, 48px);
  --radius:         8px;
  --radius-lg:      12px;
  --bevel:          16px;   /* chamfer on action surfaces */

  /* - easing (custom curves, used instead of the built-in keywords) - */
  --bez:        cubic-bezier(0.600, 0.090, 0.155, 0.975);
  --bez-btn:    cubic-bezier(0.740, 0.115, 0.070, 0.905);
  --bez-scroll: cubic-bezier(0.130, 0.000, 0.120, 0.930);

  /* - rhythm - */
  --section-y:      clamp(76px, 8vw, 116px);
  --seam-gap:       56px;
  --glass-blur:     blur(14px) saturate(175%) brightness(1.06);
}

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

picture { display: contents; }
picture > source { display: none; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 130px;
  /* firefox */
  scrollbar-width: thin;
  scrollbar-color: rgba(96, 197, 254, 0.55) transparent;
}

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  border-radius: 999px;
  border: 3px solid transparent;
  background-clip: padding-box;
  background-color: rgba(96, 197, 254, 0.55);
  box-shadow: 0 0 7px rgba(29, 129, 255, 0.45);
}
::-webkit-scrollbar-thumb:hover { background-color: rgba(140, 216, 255, 0.78); }
::-webkit-scrollbar-corner { background: transparent; }

body {
  margin: 0;
  position: relative;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    #000E24 0,
    #000C20 70px,
    #000A1B 150px,
    #000815 240px,
    #000612 340px,
    #000510 450px,
    #00040D 590px,
    #00030A 760px);
  z-index: -2;
  pointer-events: none;
}

img { max-width: 100%; height: auto; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6, p, dl, dd, figure, blockquote { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
svg { display: block; }

:focus-visible {
  outline: 2px solid var(--blue-pale);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 16px;
  z-index: 200;
  clip-path: inset(50%);
  width: 1px;
  height: 1px;
  overflow: hidden;
  padding: 12px 22px;
  border-radius: var(--bevel);
  background: linear-gradient(180deg, var(--lime) 0%, var(--lime-deep) 100%);
  color: #10240A;
  font-family: var(--font-heavy);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  box-shadow: 0 4px 0 0 var(--lime-bevel), 0 10px 22px rgba(0, 2, 10, 0.55);
}
.skip-link:focus { clip-path: none; width: auto; height: auto; overflow: visible; }

.shell {
  width: 100%;
  max-width: calc(var(--shell) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
  z-index: 1;
}

.section { padding-block: var(--section-y); }

/* sections paint above the ambient layer. */
.hero, .stats, .why, .topics, .sponsors, .details { position: relative; z-index: 1; }

/* ambient background light */
.ambient {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  contain: paint;
}

.ambient__glow {
  position: absolute;
  display: block;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(
    closest-side,
    rgba(20, 130, 247, var(--a, 0.08)) 0%,
    rgba(20, 130, 247, var(--a, 0.08)) 38%,
    rgba(20, 130, 247, 0) 100%
  );
}

.ambient__glow--tl {
  --a: 0.124;
  left: 7%;  top: -180px;
  width: min(1398px, 132vw);  height: min(1097px, 104vw);
}
.ambient__glow--tr {
  --a: 0.124;
  left: 97%; top: -150px;
  width: min(1336px, 126vw);  height: min(1097px, 104vw);
}
.ambient__glow--mr {
  --a: 0.104;
  left: 118%; top: 1180px;
  width: min(1250px, 120vw);  height: min(1232px, 118vw);
}
.ambient__glow--ml {
  --a: 0.088;
  left: -18%; top: 1080px;
  width: min(961px, 96vw);    height: min(976px, 98vw);
}
.ambient__glow--bl {
  --a: 0.088;
  left: -14%; top: 72%;
  width: min(1200px, 112vw);  height: min(1000px, 100vw);
}
.ambient__glow--br {
  --a: 0.10;
  left: 114%; top: 88%;
  width: min(1250px, 118vw);  height: min(1050px, 104vw);
}

.depth { position: relative; }
.depth::before {
  content: "";
  position: absolute;
  inset: 0 0 calc(var(--section-y) * -1) 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    rgba(8, 26, 62, 0)    0%,
    rgba(8, 26, 62, 0.22) 32%,
    rgba(10, 32, 74, 0.42) 68%,
    rgba(11, 36, 84, 0.58) 100%);
}

.cta-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 70;
  display: none;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  padding-bottom: calc(11px + env(safe-area-inset-bottom, 0px));
  background: rgba(4, 12, 26, 0.94);
  border-top: 1px solid rgba(96, 197, 254, 0.26);
  box-shadow: 0 -8px 24px rgba(0, 2, 10, 0.55);
  transform: translateY(130%);
  transition: transform 520ms var(--bez);
}
@media (max-width: 980px) { .cta-bar { display: flex; } }
.cta-bar.is-in { transform: translateY(0); }

.btn.cta-bar__btn {
  flex: 1;
  border-radius: var(--bevel);
  padding-block: 15px;
}
.cta-bar__close {
  flex: none;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(120, 170, 210, 0.34);
  border-radius: var(--bevel);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  cursor: pointer;
}
.cta-bar__close svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
}
.cta-bar__close:hover { color: #fff; border-color: rgba(150, 205, 255, 0.55); }

.btn.mobile-nav__cta { border-radius: var(--bevel); }

/* glass */
.glass {
  position: relative;
  isolation: isolate;
  border-radius: var(--radius-lg);
  background:
    /* light pooling at the top of the pane - blue, never white */
    linear-gradient(180deg,
      rgba(40, 122, 220, 0.17) 0%,
      rgba(18, 58, 118, 0.05) 46%,
      rgba(0, 0, 0, 0) 100%),
    /* the tinted body of the glass */
    linear-gradient(100deg,
      rgba(1, 5, 13, 0.64) 0%,
      rgba(5, 17, 36, 0.50) 50%,
      rgba(1, 5, 13, 0.64) 100%);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow:
    inset 0 0 0 1px rgba(120, 200, 255, 0.13),     /* constant hairline */
    inset 0  1px 0 rgba(96, 197, 254, 0.30),       /* specular top edge */
    inset 0 -1px 0 rgba(0, 0, 0, 0.60),            /* dark under edge */
    inset 0 12px 22px -16px rgba(58, 148, 255, 0.26), /* inner top bloom */
    0 -1px 5px rgba(45, 96, 220, 0.18),            /* upward blue spill */
    0 7px 16px rgba(0, 2, 8, 0.58),                /* cast shadow */
    0  2px 0  rgba(0, 0, 0, 0.32);                 /* seated edge */
}

.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(112deg,
    rgba(12, 34, 74, 0.30) 0%,
    rgba(12, 34, 74, 0.30) calc(var(--rim-pos, 34%) - 32%),
    rgba(96, 197, 254, var(--rim-hi, 0.5)) calc(var(--rim-pos, 34%) - 7%),
    rgba(29, 129, 255, var(--rim-hi, 0.5)) var(--rim-pos, 34%),
    rgba(14, 50, 112, 0.32) calc(var(--rim-pos, 34%) + 24%),
    rgba(12, 34, 74, 0.26) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  pointer-events: none;
}

/* diagonal specular sweep across the upper-left face. */
.glass::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
  background: linear-gradient(104deg,
    rgba(110, 188, 255, 0.13) 0%,
    rgba(110, 188, 255, 0.045) 16%,
    rgba(110, 188, 255, 0) 38%);
  pointer-events: none;
}

/* header */
.site-header {
  position: fixed;
  inset: 22px 0 auto;
  z-index: 100;
  padding-inline: 26px;
}

.site-header__bar {
  max-width: var(--shell-wide);
  margin-inline: auto;
  height: 84px;
  padding: 0 18px 0 20px;
  background: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  box-shadow: none;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 24px;
}

.site-header__logo {
  position: relative;
  grid-column: 1;
  justify-self: start;
  z-index: 3;
}
.site-header__logo img {
  width: 138px;
  height: auto;
  filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.6));
}

.nav {
  position: relative;
  grid-column: 3;
  justify-self: end;
  z-index: 3;
}
.nav__list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__indicator {
  position: absolute;
  top: 50%;
  left: 0;
  width: 0;
  height: 39px;
  margin-top: -19.5px;
  border-radius: var(--radius);
  border: 1px solid var(--blue-line);
  background: linear-gradient(180deg,
    rgba(96, 121, 196, 0.20) 0%,
    rgba(62,  92, 182, 0.17) 22%,
    rgba(47,  73, 153, 0.17) 100%);
  box-shadow:
    inset 0 1px 0 rgba(96, 197, 254, 0.24),
    0 0 10px rgba(29, 129, 255, 0.16);
  opacity: 0;
  pointer-events: none;
  transition:
    transform 380ms cubic-bezier(0.34, 0.82, 0.25, 1),
    width     380ms cubic-bezier(0.34, 0.82, 0.25, 1),
    opacity   220ms ease;
}
.nav__link {
  display: block;
  padding: 11px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-heavy);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: #BFD0E2;
  white-space: nowrap;
  transition: color 200ms ease;
}
.nav__link.is-active { color: var(--text); }

.site-header__meta {
  grid-column: 2;
  justify-self: start;
  position: relative;
  z-index: 3;
  margin: 0;
  padding-left: 18px;
  font-family: var(--font-cond);
  font-weight: 500;
  font-size: 14px;
  line-height: 1;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-dim);
  white-space: nowrap;
}
.site-header__meta::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1px;
  height: 20px;
  margin-top: -10px;
  background: linear-gradient(180deg,
    rgba(96, 197, 254, 0) 0%,
    rgba(96, 197, 254, 0.42) 50%,
    rgba(96, 197, 254, 0) 100%);
}

.site-header__cta { grid-column: 4; justify-self: end; }

.nav-toggle {
  display: none;
  position: relative;
  grid-column: 4;
  justify-self: end;
  z-index: 3;
  width: 44px;
  height: 44px;
  padding: 11px;
  border-radius: var(--radius);
  border: 1px solid rgba(143, 207, 255, 0.28);
}
.nav-toggle span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
}
.nav-toggle span + span { margin-top: 5px; }

.mobile-nav {
  display: none;
  max-width: var(--shell-wide);
  margin: 10px auto 0;
  padding: 14px;
  /* the drawer sits over live page content, so it needs a heavier frost than
     the header bar does - the shared --glass-blur is too light to read against */
  -webkit-backdrop-filter: blur(26px) saturate(180%) brightness(0.72);
  backdrop-filter: blur(26px) saturate(180%) brightness(0.72);
  background-color: rgba(6, 16, 34, 0.82);
}
.mobile-nav[hidden] { display: none; }
.mobile-nav__link {
  position: relative;
  z-index: 3;
  display: block;
  padding: 14px 12px;
  border-radius: var(--radius);
  font-family: var(--font-heavy);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text);
}
/* same plate as the desktop nav, sliding on Y instead of X */
.mobile-nav__indicator {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 0;
  height: 0;
  border-radius: var(--radius);
  border: 1px solid var(--blue-line);
  background: linear-gradient(180deg,
    rgba(96, 121, 196, 0.20) 0%,
    rgba(62,  92, 182, 0.17) 22%,
    rgba(47,  73, 153, 0.17) 100%);
  box-shadow:
    inset 0 1px 0 rgba(96, 197, 254, 0.24),
    0 0 10px rgba(29, 129, 255, 0.16);
  opacity: 0;
  pointer-events: none;
  z-index: 1;
  transition:
    transform 380ms cubic-bezier(0.34, 0.82, 0.25, 1),
    height    380ms cubic-bezier(0.34, 0.82, 0.25, 1),
    opacity   220ms ease;
}

.mobile-nav__cta {
  position: relative;
  z-index: 3;
  margin-top: 10px;
  width: 100%;
  justify-content: center;
}

/* header: two states */

.glass__fill {
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  pointer-events: none;
  background:
    linear-gradient(180deg,
      rgba(40, 122, 220, 0.17) 0%,
      rgba(18, 58, 118, 0.05) 46%,
      rgba(0, 0, 0, 0) 100%),
    linear-gradient(100deg,
      rgba(1, 5, 13, 0.64) 0%,
      rgba(5, 17, 36, 0.50) 50%,
      rgba(1, 5, 13, 0.64) 100%);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow:
    inset 0 0 0 1px rgba(120, 200, 255, 0.13),
    inset 0  1px 0 rgba(96, 197, 254, 0.30),
    inset 0 -1px 0 rgba(0, 0, 0, 0.60),
    inset 0 12px 22px -16px rgba(58, 148, 255, 0.26),
    0 -1px 5px rgba(45, 96, 220, 0.18),
    0 7px 16px rgba(0, 2, 8, 0.58),
    0  2px 0  rgba(0, 0, 0, 0.32);
  opacity: 0;
}
.site-header.is-stuck .glass__fill { opacity: 1; }

.site-header:not(.is-stuck) .site-header__bar {
  max-width: 100%;
  height: 96px;
  padding-inline: 26px;
}
.site-header:not(.is-stuck) .site-header__bar::before,
.site-header:not(.is-stuck) .site-header__bar::after {
  opacity: 0;
}
.site-header:not(.is-stuck) .site-header__logo img {
  width: 164px;
}
/* open state has no pane behind it, so the type needs its own contrast. */
.site-header:not(.is-stuck) .nav__link {
  text-shadow: 0 1px 6px rgba(0, 4, 12, 0.8);
}

/* buttons */
.btn {
  --drop: 4px;
  --bevel-color: var(--lime-bevel);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: var(--bevel);
  font-family: var(--font-heavy);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.1;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  white-space: nowrap;
}

.btn {
  box-shadow:
    0 var(--drop) 0 0 var(--bevel-color),
    0 calc(var(--drop) + 2px) 5px rgba(0, 0, 0, 0.45);
}

.btn__arrow {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn--lime {
  --bevel-color: var(--lime-bevel);
  background: linear-gradient(to top, var(--lime-deep) 0%, var(--lime) 100%);
  color: #000;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    inset 0 -1px 0 rgba(0, 0, 0, 0.18),
    0 var(--drop) 0 0 var(--bevel-color),
    0 calc(var(--drop) + 2px) 5px rgba(0, 0, 0, 0.45);
}

.btn--sm {
  --drop: 3px;
  padding: 12px 20px;
  font-size: 15px;
  border-radius: 12px;
}

.btn--lg {
  --drop: 4px;
  min-width: 429px;
  height: 67px;
  padding: 0 30px;
  font-size: 22px;
  letter-spacing: 0.01em;
}
.btn--lg .btn__arrow { width: 24px; height: 24px; }

.btn--outline {
  --drop: 0px;
  --bevel-color: transparent;
  color: var(--blue-pale);
  border: 1px solid rgba(143, 207, 255, 0.42);
  background: rgba(29, 129, 255, 0.10);
  box-shadow:
    inset 0 1px 0 rgba(160, 205, 255, 0.18),
    0 2px 8px rgba(0, 2, 10, 0.35);
}

.btn--dark {
  --bevel-color: #3C6D08;
  background: linear-gradient(to top, #081103 0%, #17250B 100%);
  color: #E4F8BE;
  /* same hairline treatment as the vendor outline button, in green. */
  border: 1px solid rgba(193, 244, 57, 0.45);
  box-shadow:
    inset 0 1px 0 rgba(193, 244, 57, 0.24),
    inset 0 -1px 0 rgba(0, 0, 0, 0.5),
    0 var(--drop) 0 0 var(--bevel-color),
    0 calc(var(--drop) + 2px) 5px rgba(0, 0, 0, 0.45);
}

/* shared type */
.eyebrow {
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 18px;
}
.eyebrow--blue { color: var(--blue-light); }

.h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(29px, 3.3vw, 42px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--text);
  background: linear-gradient(180deg, #FFFFFF 0%, #C9D1D6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.5));
  margin-bottom: 26px;
}

.section-head {
  max-width: 820px;
  margin-bottom: clamp(40px, 5vw, 64px);
}

/* hero */
.hero {
  padding-top: 128px;
  padding-bottom: 0;
  text-align: center;
}

.hero__lockup { display: flex; justify-content: center; }

.hero__logo {
  width: min(661px, 88vw);
  height: auto;
  filter:
    drop-shadow(0 5px 12px rgba(0, 0, 0, 0.6))
    drop-shadow(0 0 26px rgba(29, 129, 255, 0.09));
}

/* replaces the credit that was baked into the artwork */
.hero__credit {
  margin-top: 12px;
  font-family: var(--font-cond);
  font-weight: 500;
  font-size: 13px;
  line-height: 1.25;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hero__eyebrow {
  margin-top: 40px;
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-shadow: 0 0 2px rgba(0, 104, 225, 0.16);
}
.hero__eyebrow .dim    { color: var(--text-dim); }
.hero__eyebrow .bright { color: var(--blue); }

.hero__title {
  margin-top: 84px;
  font-family: var(--font-display);
  font-size: clamp(min(44px, calc((100vw - 40px) * 0.11)), 6.9vw, 96px);
  line-height: 0.9;
  letter-spacing: -0.025em;
  text-transform: uppercase;
  filter:
    drop-shadow(0 3px 6px rgba(0, 0, 0, 0.9))
    drop-shadow(0 0 5px rgba(191, 235, 254, 0.10));
}

.hero__title {
  display: flex;
  flex-direction: column;
}

.hero__title .hero__line {
  display: block;
  overflow: hidden;
  padding: 0.10em 0.06em 0.16em;
  margin: -0.10em -0.06em -0.16em;
}

.hero__title .hero__line-in {
  display: block;
  background: radial-gradient(120% 240% at 50% 46%, #FFFFFF 0%, #D9D9D9 100%);
  background-size: 100% 200%;
  background-repeat: no-repeat;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__title .hero__line:nth-child(1) .hero__line-in { background-position: 0 0%; }
.hero__title .hero__line:nth-child(2) .hero__line-in { background-position: 0 100%; }
.hero__title .w-bold  { font-weight: 700; }

.hero__sub {
  margin: 24px auto 0;
  max-width: 620px;
  font-size: 19px;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--text-body);
  text-wrap: balance;
}

.hero__action { margin-top: 46px; }

.hero__micro {
  margin-top: 28px;
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--text-body);
}

/* stat band */
.stats { padding-top: 130px; padding-bottom: var(--section-y); }

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat {
  position: relative;
  isolation: isolate;
  min-height: 190px;
  padding: 38px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-top) 0%, var(--panel-bot) 100%);
  border: 1px solid rgba(78, 117, 150, 0.52);
  box-shadow:
    inset 0 1px 0 rgba(190, 222, 255, 0.20),
    inset 0 -1px 0 rgba(0, 0, 0, 0.4),
    0 7px 16px rgba(0, 2, 10, 0.5);
}

.stat__num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(46px, 4.6vw, 64px);
  line-height: 0.9;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(to top, var(--lime-deep) 0%, var(--lime) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter:
    drop-shadow(0 3px 0 rgba(0, 0, 0, 0.9))
    drop-shadow(0 -3px 4px rgba(142, 212, 43, 0.3));
}

.stat__label {
  font-family: var(--font-cond);
  font-weight: 400;
  font-size: 18px;
  line-height: 1.15;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-shadow: 0 2px 3px rgba(0, 0, 0, 0.35);
}

/* why */
.why__grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: clamp(40px, 5vw, 76px);
  align-items: center;
}

.why__body p { margin-bottom: 20px; }
.why__body p:last-child { margin-bottom: 0; }

.why__kicker {
  color: var(--text);
}

/* the opening line carries the point of the whole section. */
.why__body strong {
  color: var(--text);
  font-weight: inherit;
}

.aside {
  position: relative;
  padding: 36px 38px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(32, 56, 81, 0.55) 0%, rgba(7, 23, 46, 0.55) 100%);
  border: 1px solid rgba(78, 117, 150, 0.5);
  border-left: 3px solid var(--lime-deep);
  box-shadow:
    inset 0 1px 0 rgba(190, 222, 255, 0.16),
    0 8px 18px rgba(0, 2, 10, 0.45);
}
.aside p {
  font-size: 19px;
  line-height: 1.55;
  color: #D6DDE3;
}
.aside p + p { margin-top: 18px; }

/* topics */
.topics__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (min-width: 761px) {
  .topics__grid > .card { order: 2; }
  .topics__grid > .card:nth-child(3n) { order: 1; }
}

.card {
  position: relative;
  padding: 30px 28px 32px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(32, 57, 87, 0.72) 0%, rgba(8, 22, 44, 0.72) 100%);
  border: 1px solid rgba(96, 145, 186, 0.55);
  box-shadow:
    inset 0 1px 0 rgba(190, 222, 255, 0.20),
    0 6px 16px rgba(0, 2, 10, 0.45);
}

.card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 20px;
  border-radius: 12px 4px 12px 4px;
  background: linear-gradient(180deg, rgba(41, 150, 255, 0.44) 0%, rgba(18, 84, 232, 0.28) 100%);
  border: 1px solid rgba(120, 208, 255, 0.62);
  box-shadow:
    inset 0 1px 0 rgba(190, 228, 255, 0.42),
    0 0 18px rgba(29, 129, 255, 0.28);
}
.topics__grid > .card:nth-child(3n) .card__icon {
  background: linear-gradient(180deg, rgba(142, 212, 43, 0.42) 0%, rgba(95, 159, 20, 0.26) 100%);
  border-color: rgba(178, 240, 90, 0.62);
  box-shadow:
    inset 0 1px 0 rgba(220, 255, 180, 0.42),
    0 0 18px rgba(142, 212, 43, 0.28);
}
.topics__grid > .card:nth-child(3n) .card__icon svg {
  fill: #ECFFD0;
  filter: drop-shadow(0 0 6px rgba(142, 212, 43, 0.55));
}

.card__icon svg {
  width: 26px;
  height: 26px;
  fill: #DCEFFF;
  stroke: none;
  filter: drop-shadow(0 0 6px rgba(96, 197, 254, 0.5));
}

.card__title {
  font-family: var(--font-heavy);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.25;
  letter-spacing: 0.005em;
  color: var(--text);
  margin-bottom: 10px;
  text-wrap: balance;
}

.card__text {
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--text-body);
}

.topics__foot {
  margin-top: 40px;
  text-align: center;
  font-family: var(--font-cond);
  font-size: 15px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* vendors & sponsors  (blue-dominant) */
.sponsors__panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: clamp(26px, 5vw, 72px);
  background:
    radial-gradient(90% 130% at 12% 0%, rgba(29, 129, 255, 0.20) 0%, rgba(29, 129, 255, 0) 62%),
    linear-gradient(180deg, rgba(24, 47, 78, 0.85) 0%, rgba(5, 16, 34, 0.9) 100%);
  border: 1px solid rgba(78, 117, 150, 0.55);
  box-shadow:
    inset 0 1px 0 rgba(190, 222, 255, 0.24),
    0 10px 24px rgba(0, 2, 10, 0.5);
}

/* this one sits on a lit panel; the shadow reads as a smudge there. */
.sponsors .h2 { filter: none; }

.sponsors__inner {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  /* without this, a nowrap child sets an un-shrinkable min-content floor. */
  min-width: 0;
  gap: clamp(36px, 4.5vw, 64px);
  align-items: center;
}

.sponsors__inner > * { min-width: 0; }
.sponsors__body p { margin-bottom: 20px; }
.sponsors__body .btn { margin-top: 12px; }

.sponsors__facts {
  display: grid;
  gap: 22px;
  padding-left: clamp(24px, 3vw, 40px);
  border-left: 1px solid rgba(96, 193, 255, 0.25);
}
.sponsors__facts li { display: grid; gap: 4px; }

.sponsors__figure {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 44px;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--blue-light);
  text-shadow: 0 0 10px rgba(29, 129, 255, 0.38);
}
.sponsors__cap {
  font-family: var(--font-cond);
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* when & where */
.details__list {
  border-top: 1px solid rgba(78, 117, 150, 0.28);
}
.details__row {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 24px;
  align-items: baseline;
  padding: 30px 4px;
  border-bottom: 1px solid rgba(78, 117, 150, 0.28);
}
.details__row dt {
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-light);
}
.details__row dd {
  font-size: 20px;
  line-height: 1.45;
  color: var(--text-body);
}
.details__row dd strong {
  display: inline;
  color: var(--text);
  font-weight: 600;
}

/* final cta  (full-bleed lime) */
.final {
  position: relative;
  z-index: 1;
  margin-top: calc(var(--seam-gap) * 2 + 1px);
  padding-block: var(--section-y);
  text-align: center;
  background:
    radial-gradient(120% 160% at 50% -30%, #D6FA6B 0%, rgba(214, 250, 107, 0) 60%),
    linear-gradient(180deg, var(--lime) 0%, var(--lime-mid) 58%, var(--lime-deep) 100%);
  box-shadow:
    inset 0  1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -1px 0 rgba(0, 0, 0, 0.22),
    0 -8px 22px rgba(140, 201, 29, 0.14);
}

.final__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  text-transform: uppercase;
  color: #0B1502;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.26);
}

.final__text {
  margin: 22px auto 40px;
  max-width: 640px;
  font-size: 18px;
  line-height: 1.55;
  color: #21360A;
}

/* footer */
.site-footer {
  position: relative;
  z-index: 1;
  padding-top: clamp(56px, 7vw, 88px);
  padding-bottom: 40px;
  background: linear-gradient(180deg, rgba(4, 12, 26, 0) 0%, rgba(2, 8, 20, 0.85) 40%);
  border-top: 1px solid rgba(78, 117, 150, 0.18);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
  padding-bottom: 48px;
}

.site-footer__logo {
  width: 260px;
  filter: drop-shadow(0 3px 8px rgba(0, 0, 0, 0.5));
}

.site-footer__tag {
  margin-top: 20px;
  font-family: var(--font-cond);
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.site-footer__nav {
  display: grid;
  grid-auto-flow: column;
  gap: clamp(32px, 4.5vw, 72px);
}
.site-footer__col { display: grid; gap: 12px; align-content: start; }
.site-footer__col h3 {
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 4px;
}
.site-footer__col a {
  font-size: 15px;
  color: var(--text-muted);
  transition: color 200ms var(--bez);
}
.site-footer__col a:hover { color: var(--blue-light); }

.site-footer__blurb {
  margin-top: 16px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-muted);
}

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid rgba(78, 117, 150, 0.18);
  font-size: 14px;
  color: var(--text-dim);
}
.site-footer__note {
  font-family: var(--font-cond);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .nav__indicator { transition: opacity 1ms linear; }
  .nav__link { transition: none; }
}

/* responsive */
@media (max-width: 1200px) {
  .site-header__bar { gap: 16px; }
  .nav__list { gap: 4px; }
  .nav__link { padding: 11px 13px; font-size: 14px; }
  .site-header__logo img { width: 124px; }
}

@media (max-width: 980px) {
  html { scroll-padding-top: 110px; }

  .nav,
  .site-header__meta,
  .site-header__cta { display: none; }
  .nav-toggle { display: block; }
  .mobile-nav { display: block; }
  .mobile-nav[hidden] { display: none; }

  .site-header__bar { height: 72px; }
  .site-header__logo img { width: 124px; }

  .hero { padding-top: 116px; }
  .hero__title { margin-top: 56px; }
  .stats { padding-top: 96px; }

  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .why__grid { grid-template-columns: 1fr; }
  .topics__grid { grid-template-columns: repeat(2, 1fr); }
  .sponsors__inner { grid-template-columns: 1fr; }
  .sponsors__facts {
    grid-auto-flow: column;
    padding-left: 0;
    padding-top: 30px;
    border-left: 0;
    border-top: 1px solid rgba(96, 193, 255, 0.25);
  }
  .site-footer__top { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }

  :root { --glass-blur: none; }
  .glass__fill { background-color: rgba(10, 22, 44, 0.82); }

  .site-header { inset: 12px 0 auto; padding-inline: 14px; }
  .site-header__bar { height: 64px; padding: 0 12px; }
  .site-header__logo img { width: 104px; }

  .hero { padding-top: 96px; }
  .hero__credit { margin-top: 8px; font-size: 11px; letter-spacing: 0.12em; }
  .hero__eyebrow { margin-top: 28px; font-size: 13px; letter-spacing: 0.04em; }
  .hero__title { margin-top: 40px; }
  .hero__sub { font-size: 17px; }
  .hero__action { margin-top: 34px; }

  .btn {
    white-space: normal;
    padding: 14px 20px;
  }
  .btn--lg {
    min-width: 0;
    width: 100%;
    height: auto;
    min-height: 62px;
    padding: 16px 20px;
    font-size: 17px;
  }

  .site-header:not(.is-stuck) .site-header__logo img { width: 84px; }

  .section-head,
  .stat,
  .card,
  .details__row,
  .topics__foot,
  .sponsors__facts,
  .why__body,
  .sponsors__panel,
  .final,
  .site-footer,
  .site-footer__top,
  .site-footer__brand,
  .site-footer__nav,
  .site-footer__col,
  .site-footer__bottom { text-align: center; }
  .site-footer__brand { display: grid; justify-items: center; }
  .site-footer__logo { margin-inline: auto; }
  .site-footer__blurb { margin-inline: auto; }
  .site-footer__nav { justify-items: center; }
  .site-footer__col { justify-items: center; }
  .card__icon { margin-inline: auto; }
  .details__row dt, .details__row dd { text-align: center; }

  .stats { padding-top: 76px; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat:nth-child(1) { grid-column: 1; grid-row: 1; }
  .stat:nth-child(3) { grid-column: 2; grid-row: 1; }
  .stat:nth-child(2) { grid-column: 1 / -1; grid-row: 2; }
  .stat:nth-child(4) { display: none; }
  .stat { min-height: 0; padding: 20px 16px; gap: 9px; }
  .stat__num { font-size: clamp(30px, 8.4vw, 40px); }
  .stat__label { font-size: 14px; letter-spacing: 0.035em; }

  .topics__grid { grid-template-columns: 1fr; }
  .details__row { grid-template-columns: 1fr; gap: 8px; padding: 24px 2px; }
  .sponsors__facts { grid-auto-flow: row; }
  .site-footer__nav { grid-auto-flow: row; gap: 32px; }
  .site-footer__bottom { flex-direction: column; align-items: center; gap: 12px; }
}

/* topics carousel (mobile) */
@media (max-width: 760px) {
  .topics__carousel {
    margin-inline: calc(var(--gutter) * -1);
    padding-block: 30px;
    margin-block: -30px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
  }
  .topics__carousel::-webkit-scrollbar { display: none; }

  .topics__grid {
    display: flex;
    gap: 12px;
    margin: 0;
    padding: 6px 12vw 10px;
    list-style: none;
    width: max-content;
  }

  .topics__grid > .card {
    flex: 0 0 76vw;
    scroll-snap-align: center;
    transform: scale(1);
    transition: transform 250ms var(--bez), border-color 420ms var(--bez),
                box-shadow 420ms var(--bez);
  }

  .topics__grid.is-holding > .card.is-current { transform: scale(1.05); }

  .topics__grid.is-dragging > .card {
    transition: transform 250ms var(--bez);
    border-color: rgba(96, 197, 254, 0.5);
    box-shadow:
      inset 0 1px 0 rgba(190, 222, 255, 0.22),
      0 16px 34px rgba(0, 2, 10, 0.55);
  }

  /* the centred card is the one being read; its neighbours sit back. */
  .topics__grid > .card { opacity: 0.55; transition: opacity 420ms var(--bez); }
  .topics__grid > .card.is-current { opacity: 1; }
  .topics__grid > .card.is-current { transform: scale(1); }
}

@media (max-width: 760px) {
  .topics__grid.is-carousel > .card.is-tilting {
    translate: 0 0;
    transform: scale(1);
  }
  .topics__grid.is-carousel > .card.is-tilting.is-current {
    transform: scale(var(--drag-scale, 1));
  }
}

@media (max-width: 1180px) {
  .site-header__meta { display: none; }
}

.why__p--mob { display: none; }
@media (max-width: 760px) {
  .why__p--desk { display: none; }
  .why__p--mob { display: block; }
  .aside { display: none; }

  .sponsors__facts { display: none; }
}

@media (max-width: 760px) {
  .topics__grid > .card { justify-content: flex-start; }
  .topics__grid > .card .card__title {
    min-height: calc(2 * 1.25em);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .topics__grid > .card .card__text { min-height: calc(2 * 1.55em); }
}

/* takeaway panel */
.takeaway {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(32, 57, 87, 0.55) 0%, rgba(8, 22, 44, 0.55) 100%);
  border: 1px solid rgba(96, 145, 186, 0.45);
  box-shadow:
    inset 0 1px 0 rgba(190, 222, 255, 0.16),
    0 6px 18px rgba(0, 2, 10, 0.4);
}

.takeaway__head {
  font-family: var(--font-heavy);
  font-weight: 800;
  font-size: clamp(21px, 2.1vw, 26px);
  line-height: 1.08;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 40px;
}

.takeaway__list { display: grid; gap: 30px; }

.takeaway__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
}

/* same tile as the topic cards so the two sections read as one system. */
.takeaway__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 11px 4px 11px 4px;
  background: linear-gradient(180deg, rgba(41, 150, 255, 0.4) 0%, rgba(18, 84, 232, 0.26) 100%);
  border: 1px solid rgba(120, 208, 255, 0.55);
  box-shadow:
    inset 0 1px 0 rgba(190, 228, 255, 0.36),
    0 0 14px rgba(29, 129, 255, 0.22);
  color: #DCEFFF;
}
.takeaway__icon .material-symbols-outlined {
  font-family: "Material Symbols Outlined";
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  display: block;
  font-variation-settings: 'FILL' 1, 'wght' 600, 'GRAD' 0, 'opsz' 24;
  -webkit-font-feature-settings: 'liga';
  font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
  letter-spacing: normal;
  text-transform: none;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
}

.takeaway__copy h4 {
  font-family: var(--font-heavy);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 5px;
}
.takeaway__copy p {
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .why__grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .takeaway { text-align: left; }
  .takeaway__head { text-align: center; }
}

.br-mob { display: none; }
@media (max-width: 760px) { .br-mob { display: inline; } }

/* "help shape the summit" plus the arrow is wider than the bar on small phones */
@media (max-width: 374px) {
  .cta-bar__btn .btn__arrow { display: none; }
}
@media (max-width: 359px) {
  .btn.cta-bar__btn { font-size: 14px; padding-inline: 16px; }
}