/* CryptoBoost / Big Bang + ON. Original SVG geometry, black and gold. */
:root {
  color-scheme: dark;
  --black: #050505;
  --brand-gold: #d4aa00;
  --ink: #f1f0e9;
  --muted: #9c9d96;
  --line: rgba(233, 223, 193, .12);
  --ease: cubic-bezier(.2, .7, .2, 1);
  font-family: "Avenir Next", Avenir, "Segoe UI", Arial, sans-serif;
  background: var(--black);
  color: var(--ink);
}
* { box-sizing: border-box; }
html { min-width: 280px; }
body { margin: 0; background: var(--black); }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; touch-action: manipulation; }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }
::selection { background: #d4aa00; color: #050505; }
:focus-visible { outline: 2px solid #ead16b; outline-offset: 6px; border-radius: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 100; top: 16px; left: 16px; padding: 12px 18px; background: var(--ink); color: #050505; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.cb-intro-active { overflow: hidden; }
#cb-page { overflow: clip; min-height: 100vh; min-height: 100svh; background: var(--black); }
.site-header, .site-footer { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; margin: 0 clamp(24px, 5vw, 80px); }
.site-header { height: 100px; border-bottom: 1px solid var(--line); }
.header-label { display: inline-flex; align-items: center; gap: 13px; min-height: 44px; font-size: 9px; font-weight: 400; letter-spacing: .15em; text-transform: uppercase; color: #b8b8ac; }
.header-label span { width: 3px; height: 3px; background: var(--brand-gold); }
.header-note { font-size: 10px; letter-spacing: .04em; color: var(--muted); }
.hero { isolation: isolate; position: relative; display: grid; place-items: center; min-height: calc(100vh - 182px); min-height: calc(100svh - 182px); padding: 48px 24px 56px; }
.hero-ambience { position: absolute; z-index: -1; inset: 0; pointer-events: none; background: radial-gradient(ellipse 35% 44% at 50% 38%, rgba(178, 139, 31, .035), transparent 100%); }
.hero-content { width: 100%; text-align: center; }
.eyebrow { font-size: 8px; line-height: 1.7; text-transform: uppercase; letter-spacing: .23em; color: #82847d; margin: 0 0 30px; }
.brand-lockup { width: min(960px, calc(100vw - 40px)); text-align: center; margin-inline: auto; }
.brand-identity { display: flex; flex-direction: column; align-items: center; }
.mark-frame { position: relative; width: 128px; height: 130px; }
.brand-mark { display: block; width: 100%; height: 100%; object-fit: contain; }
.brand-wordmark { display: block; width: 190px; height: auto; aspect-ratio: 251 / 29; margin: 14px auto 0; object-fit: contain; }
.brand-title { margin: 33px auto 18px; font-size: clamp(46px, 6.4vw, 82px); line-height: 1.06; font-weight: 420; letter-spacing: -.055em; color: var(--ink); text-wrap: balance; }
.brand-title:focus { outline: none; }
.brand-title > span { display: block; }

.brand-tagline { max-width: 620px; margin: 0 auto; font-size: 16px; line-height: 1.7; font-weight: 400; letter-spacing: .005em; color: #a8aaa1; text-wrap: balance; }
.protocol-status { display: inline-flex; align-items: center; gap: 9px; margin: 34px 0 0; padding: 9px 14px; border: 1px solid rgba(212, 170, 0, .2); border-radius: 999px; color: #b8ac7c; font-size: 10px; line-height: 1.5; letter-spacing: .06em; }
.protocol-status > span { width: 4px; height: 4px; border-radius: 50%; background: var(--brand-gold); }
.site-footer { min-height: 82px; border-top: 1px solid var(--line); font-size: 9px; color: #888c81; gap: 12px; }
.site-footer p { margin: 0; line-height: 1.6; }
.footer-divider { padding-inline: 14px; color: #5c6056; }
.text-button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 0; border-bottom: 1px solid transparent; min-height: 44px; padding: 10px 0; background: transparent; color: #bebfb4; font-size: 11px; cursor: pointer; letter-spacing: .025em; transition: color .2s, border-color .2s; }
.text-button:hover { color: #f4e7b2; border-color: var(--brand-gold); }
.text-button svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.15; stroke-linecap: round; stroke-linejoin: round; }
.text-button[aria-disabled="true"] { color: #93988a; cursor: default; }
.replay-button { flex-shrink: 0; }

/* Particles resolve into the unchanged logo. Only the ON core responds. */
.intro { position: fixed; z-index: 90; inset: 0; overflow: hidden; background: var(--black); opacity: 1; transition: opacity 620ms var(--ease); }
.intro:focus { outline: none; }
.particle-stage { position: absolute; inset: 0; display: block; width: 100%; height: 100%; pointer-events: none; }
.entrance-identity { position: absolute; top: 50%; left: 50%; display: flex; flex-direction: column; align-items: center; width: min(320px, 90vw); transform: translate(-50%, -50%); transition: opacity 500ms var(--ease), transform 620ms var(--ease); }
.entrance-symbol { position: relative; flex: none; width: 236px; height: 240px; }
.intro-symbol-art { display: block; width: 100%; height: 100%; overflow: visible; opacity: var(--logo-opacity, 0); pointer-events: none; }
.power-core { transform-box: fill-box; transform-origin: center; transition: transform 240ms var(--ease), filter 240ms var(--ease); }
.intro.is-ready .power-core { animation: on-pulse 3.2s ease-in-out infinite; }
@keyframes on-pulse {
  0%, 100% { transform: scale(1); filter: brightness(.78) saturate(1) hue-rotate(0deg) drop-shadow(0 0 0 rgba(212, 170, 0, 0)) drop-shadow(0 0 0 rgba(212, 170, 0, 0)); }
  50% { transform: scale(1.03); filter: brightness(1.105) saturate(.95) hue-rotate(-6deg) drop-shadow(0 0 3px rgba(212, 170, 0, .2125)) drop-shadow(0 0 7.5px rgba(190, 145, 30, .15)); }
}
.on-sheen { position: absolute; z-index: 2; inset: 0; pointer-events: none; opacity: 0; transform-origin: 50.04% 40.03%; background: linear-gradient(115deg, transparent 43%, rgba(186, 143, 51, .08) 46%, rgba(200, 166, 79, .9) 49%, #c8a64f 50%, rgba(200, 166, 79, .9) 51%, transparent 57%) 140% 0 / 320% 100% no-repeat; -webkit-mask: url("cb-on-mask.svg") center / 100% 100% no-repeat; mask: url("cb-on-mask.svg") center / 100% 100% no-repeat; }
.intro.is-ready .on-sheen { animation: on-pulse 3.2s ease-in-out infinite, on-sheen 3.2s ease-in-out infinite; }
@keyframes on-sheen {
  0%, 18% { background-position: 140% 0; opacity: 0; }
  30% { opacity: .225; }
  58% { background-position: -40% 0; opacity: .225; }
  72%, 100% { background-position: -40% 0; opacity: 0; }
}
.power-trigger { position: absolute; z-index: 3; left: 24.04%; top: 7.53%; width: 51.92%; height: 64.52%; display: block; border-radius: 8px; cursor: pointer; touch-action: manipulation; }
.power-trigger:focus-visible { outline: 1px solid #e6cb63; outline-offset: 7px; }
.power-trigger:focus-visible + .intro-symbol-art .power-core { animation: none; transform: translateY(1px) scale(.98); filter: brightness(.9); }
.power-trigger:focus-visible ~ .on-sheen,
.power-trigger:active ~ .on-sheen,
.intro.is-entering .on-sheen { animation: none; opacity: 0; }
@media (hover: hover) {
  .power-trigger:hover + .intro-symbol-art .power-core { animation: none; transform: translateY(1.2px) scale(.975); filter: brightness(.83) drop-shadow(0 -1px .6px rgba(0, 0, 0, .8)); }
  .power-trigger:hover ~ .on-sheen { animation: none; opacity: 0; }
}
.power-trigger:active + .intro-symbol-art .power-core,
.intro.is-entering .power-core { animation: none; transform: translateY(2px) scale(.95); filter: brightness(.74) drop-shadow(0 -1px 1px rgba(0, 0, 0, .9)); }
.entrance-wordmark { display: block; width: 225px; height: auto; aspect-ratio: 251 / 29; margin-top: 24px; opacity: var(--wordmark-opacity, 0); }
.intro.is-ready .intro-symbol-art, .intro.is-ready .entrance-wordmark { opacity: 1; }
.intro.is-entering { opacity: 0; pointer-events: none; }
.intro.is-entering .entrance-identity { opacity: 0; transform: translate(-50%, -50%) scale(.97); }
@media (max-width: 700px) {
  .site-header { height: 82px; }
  .header-label { font-size: 7px; letter-spacing: .11em; gap: 8px; }
  .header-note { font-size: 8px; }
  .hero { min-height: calc(100svh - 170px); padding: 30px 20px 38px; }
  .mark-frame { width: 100px; height: 102px; }
  .brand-wordmark { width: 154px; margin-top: 11px; }
  .brand-title { font-size: 48px; max-width: 540px; margin-top: 27px; line-height: 1.08; }
  .brand-tagline { max-width: 390px; font-size: 14px; line-height: 1.75; padding-inline: 8px; }
  .eyebrow { font-size: 7px; letter-spacing: .17em; margin-bottom: 25px; }
  .protocol-status { margin-top: 26px; }
  .site-footer { min-height: 88px; font-size: 8px; }
  .site-footer p > span:last-child { display: block; }
  .footer-divider { display: none; }
  .entrance-symbol { width: 204px; height: 207.344px; }
  .entrance-wordmark { width: 194px; margin-top: 20px; }
}
@media (max-width: 420px) {
  .brand-title { font-size: 45px; max-width: 330px; }
  .brand-tagline { max-width: 330px; }
  .header-note { display: none; }
  .entrance-symbol { width: 184px; height: 187.016px; }
  .entrance-wordmark { width: 178px; }
}
@media (max-height: 520px) {
  .site-header { height: 56px; }
  .hero { min-height: calc(100svh - 116px); padding-block: 18px; }
  .mark-frame { width: 70px; height: 71px; }
  .brand-wordmark { width: 132px; margin-top: 3px; }
  .brand-title { font-size: 36px; margin: 15px 0 10px; max-width: none; }
  .brand-tagline { font-size: 12px; line-height: 1.4; max-width: 550px; }
  .eyebrow { display: none; }
  .protocol-status { margin-top: 20px; font-size: 9px; }
  .site-footer { min-height: 60px; }
  .entrance-symbol { width: 144px; height: 146.36px; }
  .entrance-wordmark { width: 160px; margin-top: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .power-core { transform: none !important; }
  .on-sheen { display: none; }
}