:root {
  --bg: #000000;
  --ink: #e8e8e8;
  --muted: #7a7a7a;
  --orange: #ff5a00;
  --orange-soft: rgba(255, 90, 0, 0.22);
  --font: "Outfit", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  min-height: 100%;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ink);
  font-family: var(--font);
  background: var(--bg);
}

::selection {
  background: var(--orange);
  color: #000;
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.ambient__wash {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% 42%, rgba(255, 90, 0, 0.09), transparent 62%),
    radial-gradient(circle at 50% 120%, rgba(255, 90, 0, 0.05), transparent 46%);
}

.ambient__spot {
  position: absolute;
  width: 42rem;
  height: 42rem;
  margin: -21rem 0 0 -21rem;
  border-radius: 50%;
  background: radial-gradient(circle, var(--orange-soft), transparent 68%);
  opacity: 0;
  transform: translate3d(50vw, 40vh, 0);
  transition: opacity 0.6s ease;
  will-change: transform;
}

body.is-ready .ambient__spot {
  opacity: 1;
}

.ambient__field {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.top,
.hero,
.foot {
  position: relative;
  z-index: 1;
}

.top {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 1.15rem 1.4rem;
}

.version {
  margin: 0 auto 0 0;
  color: var(--muted);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
}

.version:empty {
  visibility: hidden;
}

.switch {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.switch__mark {
  display: block;
  padding: 0.15rem 0.2rem;
  opacity: 0.42;
  filter: grayscale(0.15);
  transition:
    opacity 0.25s ease,
    filter 0.25s ease,
    transform 0.25s ease;
}

.switch__mark img {
  display: block;
  height: 22px;
  width: auto;
}

.switch__mark:hover {
  opacity: 0.86;
  transform: translateY(-1px);
}

.switch__mark.is-current {
  opacity: 1;
  filter: none;
}

.hero {
  display: grid;
  place-items: center;
  flex: 1;
  min-height: calc(100vh - 8.2rem);
  padding: 2rem 1.5rem 4rem;
  text-align: center;
}

.hero__logo {
  display: block;
  width: min(820px, 88vw);
  height: auto;
  opacity: 0;
  filter: drop-shadow(0 0 42px rgba(255, 90, 0, 0.18));
  transform: translateY(18px) scale(0.985);
  transition:
    opacity 1.1s ease,
    transform 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

body.is-ready .hero__logo {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.hero__line {
  margin-top: 1.8rem;
  color: var(--muted);
  font-size: clamp(0.82rem, 1.6vw, 1rem);
  font-weight: 400;
  letter-spacing: 0.38em;
  text-indent: 0.38em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 0.9s ease 0.35s,
    transform 0.9s ease 0.35s;
}

body.is-ready .hero__line {
  opacity: 1;
  transform: translateY(0);
}

.hero__soon {
  margin-top: 0.85rem;
  color: var(--orange);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.34em;
  text-indent: 0.34em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 0.9s ease 0.5s,
    transform 0.9s ease 0.5s;
}

body.is-ready .hero__soon {
  opacity: 1;
  transform: translateY(0);
}

.foot {
  padding: 0 2rem 1.5rem;
  color: #4a4a4a;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-align: center;
}

@media (max-width: 640px) {
  .top {
    padding: 0.95rem 0.9rem;
  }

  .switch__mark img {
    height: 16px;
  }

  .hero {
    min-height: calc(100vh - 7.2rem);
    padding: 1.2rem 1rem 3.2rem;
  }

  .hero__line {
    letter-spacing: 0.2em;
    text-indent: 0.2em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ambient__spot,
  .hero__logo,
  .hero__line,
  .hero__soon {
    transition: none;
  }

  .hero__logo,
  .hero__line,
  .hero__soon {
    opacity: 1;
    transform: none;
  }
}