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

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: "Orbitron", system-ui, sans-serif;
  background: #000;
  color: #c8d8ff;
}

#starfield {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.page {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
  text-align: center;
}

.hero-panel {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-swap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(92vw, 720px);
  min-height: clamp(3.5rem, 13vw, 7rem);
}

.logo-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  transition:
    opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-panel.menu-open .logo-stage {
  opacity: 0;
  transform: translateY(-28px);
  pointer-events: none;
}

.site-menu {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(0.85rem, 3vw, 1.35rem);
  opacity: 0;
  transform: translateY(48px);
  pointer-events: none;
  transition:
    opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0.05s,
    transform 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.05s;
}

.hero-panel.menu-open .site-menu {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.menu-item {
  font-size: clamp(1rem, 3.2vw, 1.35rem);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  text-decoration: none;
  color: #d8e4ff;
  padding: 0.35rem 0.75rem;
  transition: color 0.25s ease, text-shadow 0.25s ease;
}

.menu-item:hover,
.menu-item:focus-visible {
  color: #fff;
  text-shadow: 0 0 18px rgba(180, 200, 255, 0.55);
  outline: none;
}

.menu-arrow {
  position: absolute;
  top: calc(100% + 300px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(200, 216, 255, 0.35);
  border-radius: 50%;
  background: rgba(8, 12, 28, 0.45);
  color: #c8d8ff;
  cursor: pointer;
  opacity: 0;
  backdrop-filter: blur(6px);
  transition:
    opacity 0.6s ease 2.4s,
    border-color 0.25s ease,
    color 0.25s ease,
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    background 0.25s ease;
}

.hero-panel:has(.logo-stage.landed) .menu-arrow,
.hero-panel.menu-open .menu-arrow {
  opacity: 1;
  transition-delay: 0s;
}

.menu-arrow:hover,
.menu-arrow:focus-visible {
  border-color: rgba(220, 230, 255, 0.65);
  color: #fff;
  background: rgba(20, 28, 55, 0.6);
  outline: none;
}

.menu-arrow-icon {
  width: 22px;
  height: 22px;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-panel.menu-open .menu-arrow-icon {
  transform: rotate(180deg);
}

.logo-flight {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translate(0, 0) scale(0.02);
  transform-origin: center center;
  will-change: transform, opacity;
}

.logo-stage.landed .logo-flight {
  opacity: 1;
  transform: scale(1);
}

.logo-glow {
  position: absolute;
  width: min(80vw, 520px);
  height: min(30vw, 180px);
  border-radius: 50%;
  background: radial-gradient(
    ellipse,
    rgba(220, 225, 235, 0.22) 0%,
    rgba(160, 165, 175, 0.1) 40%,
    transparent 75%
  );
  filter: blur(28px);
  opacity: 0;
}

.logo-stage.landed .logo-glow {
  animation: glow-bloom 2.8s ease-out forwards;
}

.logo {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.05em;
  font-size: clamp(3rem, 12vw, 6.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  text-transform: lowercase;
}

.logo-word {
  display: inline-flex;
}

.letter {
  display: inline-block;
  background: linear-gradient(
    165deg,
    #f8f9fb 0%,
    #d8dce3 18%,
    #a8adb6 38%,
    #eceef2 52%,
    #7a808a 68%,
    #c4c8d0 82%,
    #5e636c 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter:
    drop-shadow(0 1px 0 rgba(255, 255, 255, 0.5))
    drop-shadow(0 4px 6px rgba(0, 0, 0, 0.45))
    drop-shadow(0 10px 18px rgba(0, 0, 0, 0.35));
  opacity: 1;
  transform: none;
}

.logo-stage.landed .letter {
  opacity: 1;
  transform: none;
}

.logo-domain {
  font-size: 0.32em;
  font-weight: 400;
  letter-spacing: 0.08em;
  background: linear-gradient(
    165deg,
    #e8ebf0 0%,
    #b0b5be 35%,
    #d4d8de 55%,
    #6e737c 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter:
    drop-shadow(0 1px 0 rgba(255, 255, 255, 0.35))
    drop-shadow(0 3px 5px rgba(0, 0, 0, 0.4));
  opacity: 1;
  transform: none;
}

@keyframes letter-rise {
  0% {
    opacity: 0;
    transform: translateY(24px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes domain-fade {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes glow-bloom {
  0% {
    opacity: 0;
    transform: scale(0.6);
  }
  40% {
    opacity: 0.95;
    transform: scale(1.1);
  }
  100% {
    opacity: 0.45;
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .logo-flight {
    opacity: 1;
  }

  .letter,
  .letter-d,
  .logo-domain,
  .logo-glow {
    animation: none;
    opacity: 1;
    transform: none;
    filter: none;
  }

  .logo-stage,
  .site-menu,
  .menu-arrow,
  .menu-arrow-icon {
    transition: none;
  }

  .hero-panel.menu-open .logo-stage {
    display: none;
  }
}