:root {
  color-scheme: dark;
  --space-top: #11172b;
  --space-mid: #070a13;
  --space-bottom: #020308;
  --mist-a: 74, 126, 255;
  --mist-b: 43, 197, 255;
  --mist-c: 255, 191, 102;
  --text-main: rgba(243, 247, 255, 0.96);
  --text-soft: rgba(186, 198, 224, 0.78);
  --line-soft: rgba(138, 165, 214, 0.14);
  --core-glow: rgba(191, 220, 255, 0.22);
  --px: 0px;
  --py: 0px;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 35%, var(--space-top) 0%, var(--space-mid) 48%, var(--space-bottom) 100%);
  color: var(--text-main);
  font-family: Bahnschrift, "Aptos", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

.okinavi-galaxy-root {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  isolation: isolate;
}

.okinavi-galaxy-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.okinavi-galaxy-space,
.okinavi-galaxy-nebula,
.okinavi-galaxy-stars,
.okinavi-galaxy-particles {
  position: absolute;
  inset: -4%;
}

.okinavi-galaxy-space {
  background:
    radial-gradient(circle at 50% 32%, rgba(34, 42, 74, 0.68) 0%, rgba(10, 13, 24, 0.22) 26%, rgba(2, 3, 8, 0) 58%),
    radial-gradient(circle at 18% 12%, rgba(112, 178, 255, 0.08) 0%, rgba(0, 0, 0, 0) 28%),
    radial-gradient(circle at 82% 80%, rgba(255, 184, 106, 0.06) 0%, rgba(0, 0, 0, 0) 24%);
  transform: translate3d(calc(var(--px) * 0.08), calc(var(--py) * 0.08), 0);
}

.okinavi-galaxy-nebula {
  border-radius: 999px;
  filter: blur(86px);
  opacity: 0.72;
  will-change: transform;
}

.okinavi-galaxy-nebula-a {
  inset: 10% auto auto 10%;
  width: 42vw;
  height: 24vw;
  min-width: 380px;
  min-height: 220px;
  background:
    radial-gradient(circle at 32% 44%, rgba(var(--mist-a), 0.34) 0%, rgba(var(--mist-b), 0.18) 28%, rgba(0, 0, 0, 0) 74%);
  transform: translate3d(calc(var(--px) * 0.48), calc(var(--py) * 0.48), 0);
}

.okinavi-galaxy-nebula-b {
  inset: auto 8% 6% auto;
  width: 38vw;
  height: 22vw;
  min-width: 320px;
  min-height: 200px;
  background:
    radial-gradient(circle at 58% 48%, rgba(var(--mist-c), 0.28) 0%, rgba(255, 122, 82, 0.14) 30%, rgba(0, 0, 0, 0) 72%);
  transform: translate3d(calc(var(--px) * -0.42), calc(var(--py) * -0.42), 0);
}

.okinavi-galaxy-stars {
  opacity: 0.54;
  background-image:
    radial-gradient(circle at 12% 22%, rgba(255, 255, 255, 0.75) 0 1px, transparent 1.6px),
    radial-gradient(circle at 18% 78%, rgba(168, 204, 255, 0.54) 0 1px, transparent 1.8px),
    radial-gradient(circle at 28% 44%, rgba(255, 255, 255, 0.42) 0 1px, transparent 2px),
    radial-gradient(circle at 42% 18%, rgba(129, 177, 255, 0.48) 0 1px, transparent 1.8px),
    radial-gradient(circle at 55% 72%, rgba(255, 255, 255, 0.4) 0 1px, transparent 1.8px),
    radial-gradient(circle at 68% 26%, rgba(150, 218, 255, 0.54) 0 1px, transparent 1.8px),
    radial-gradient(circle at 74% 58%, rgba(255, 212, 145, 0.48) 0 1px, transparent 1.8px),
    radial-gradient(circle at 88% 36%, rgba(255, 255, 255, 0.46) 0 1px, transparent 1.8px),
    radial-gradient(circle at 92% 78%, rgba(149, 204, 255, 0.44) 0 1px, transparent 2px);
  transform: translate3d(calc(var(--px) * 0.04), calc(var(--py) * 0.04), 0);
}

.okinavi-galaxy-particles {
  display: block;
  width: 100%;
  height: 100%;
  transform: translate3d(calc(var(--px) * 0.12), calc(var(--py) * 0.12), 0);
}

.okinavi-galaxy-shell {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 2.2rem;
  padding: 4.5rem 1.5rem 3rem;
}

.okinavi-galaxy-brand {
  display: grid;
  gap: 0.55rem;
  justify-items: center;
  text-align: center;
}

.okinavi-galaxy-kicker,
.okinavi-galaxy-subtitle {
  margin: 0;
}

.okinavi-galaxy-kicker {
  color: rgba(163, 194, 255, 0.84);
  font-size: 0.78rem;
  letter-spacing: 0.42rem;
  text-transform: uppercase;
}

.okinavi-galaxy-title {
  margin: 0;
  font-size: clamp(3.2rem, 10vw, 7rem);
  font-weight: 700;
  letter-spacing: 0.24rem;
  line-height: 0.94;
  text-shadow: 0 0 36px rgba(132, 182, 255, 0.16);
}

.okinavi-galaxy-subtitle {
  color: var(--text-soft);
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  letter-spacing: 0.14rem;
  text-transform: uppercase;
}

.okinavi-galaxy-core {
  position: relative;
  width: min(70vw, 820px);
  height: clamp(80px, 14vw, 130px);
  pointer-events: none;
}

.okinavi-galaxy-core-ring,
.okinavi-galaxy-core-node {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
}

.okinavi-galaxy-core-ring {
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  box-shadow:
    inset 0 0 24px rgba(132, 182, 255, 0.06),
    0 0 24px rgba(132, 182, 255, 0.06);
}

.okinavi-galaxy-core-ring-a {
  width: min(66vw, 760px);
  height: clamp(40px, 7vw, 68px);
}

.okinavi-galaxy-core-ring-b {
  width: min(54vw, 620px);
  height: clamp(34px, 6vw, 58px);
}

.okinavi-galaxy-core-ring-c {
  width: min(42vw, 480px);
  height: clamp(28px, 5vw, 48px);
}

.okinavi-galaxy-core-node {
  width: clamp(18px, 3vw, 28px);
  height: clamp(18px, 3vw, 28px);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.94) 0%, rgba(182, 216, 255, 0.78) 38%, rgba(120, 173, 255, 0.14) 68%, rgba(0, 0, 0, 0) 100%);
  box-shadow:
    0 0 28px rgba(196, 224, 255, 0.24),
    0 0 88px rgba(76, 136, 255, 0.16);
}

.okinavi-galaxy-portals {
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.35rem;
  align-items: stretch;
}

.okinavi-galaxy-portal {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 0.85rem;
  width: 100%;
  min-height: clamp(260px, 24vw, 330px);
  padding: 0.35rem 0 0.15rem;
  border-radius: 40px;
  text-decoration: none;
  color: inherit;
  isolation: isolate;
  perspective: 1200px;
  transform: translate3d(0, 0, 0);
  transition:
    opacity 200ms ease,
    filter 220ms ease;
  will-change: transform, opacity, filter;
}

.okinavi-galaxy-portal-motion {
  position: relative;
  width: 100%;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 0.8rem;
  padding: 0;
  border-radius: inherit;
  overflow: visible;
  transform-style: preserve-3d;
  transform: translate3d(0, 0, 0);
  will-change: transform;
  --portal-breath: 0.5;
  --portal-glow: 1;
  --portal-sheen: 1;
}

.okinavi-galaxy-portal-motion::before,
.okinavi-galaxy-portal-motion::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.okinavi-galaxy-portal-motion::before {
  inset: 9% 10% 12%;
  border-radius: inherit;
  background:
    radial-gradient(circle at 50% 50%, rgba(var(--portal-rgb), 0.18), rgba(0, 0, 0, 0) 68%);
  opacity: calc(0.26 + var(--portal-breath) * 0.2);
  filter: blur(18px);
}

.okinavi-galaxy-portal-motion::after {
  inset: auto 22% 0;
  height: 26%;
  border-radius: 999px;
  background: radial-gradient(circle at 50% 50%, rgba(var(--portal-rgb), 0.26), rgba(0, 0, 0, 0) 76%);
  filter: blur(26px);
  opacity: calc(0.5 + var(--portal-glow) * 0.08);
}

.okinavi-galaxy-portal-body {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 0.8rem;
  width: min(100%, 320px);
  min-height: 0;
  padding: 0.25rem 0.1rem 0.15rem;
  border-radius: inherit;
  border: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
  backdrop-filter: none;
}

.okinavi-galaxy-portal-body::before,
.okinavi-galaxy-portal-body::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.okinavi-galaxy-portal-body::before {
  inset: 0;
  border-radius: inherit;
  background:
    radial-gradient(circle at 50% 44%, rgba(var(--portal-rgb), 0.11), rgba(0, 0, 0, 0) 58%),
    radial-gradient(circle at 50% 54%, rgba(0, 0, 0, 0.12), rgba(0, 0, 0, 0) 72%);
  opacity: calc(0.65 + var(--portal-breath) * 0.12);
}

.okinavi-galaxy-portal-body::after {
  inset: auto 18% 0;
  height: 34%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(var(--portal-rgb), 0.16) 0%, rgba(var(--portal-rgb), 0.08) 32%, rgba(0, 0, 0, 0) 74%);
  filter: blur(30px);
  opacity: calc(0.48 + var(--portal-sheen) * 0.12);
}

.okinavi-galaxy-portal:hover,
.okinavi-galaxy-portal:focus-visible,
.okinavi-galaxy-portal[data-active="true"] {
  filter: brightness(1.06) saturate(1.12);
}

.okinavi-galaxy-portal:hover .okinavi-galaxy-portal-body::before,
.okinavi-galaxy-portal:focus-visible .okinavi-galaxy-portal-body::before,
.okinavi-galaxy-portal[data-active="true"] .okinavi-galaxy-portal-body::before {
  opacity: 0.9;
}

.okinavi-galaxy-portal:focus-visible {
  outline: none;
}

.okinavi-galaxy-portal-visual {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1 / 1;
  width: min(220px, 100%);
  justify-self: center;
  margin-top: 0;
}

.okinavi-galaxy-portal-halo,
.okinavi-galaxy-portal-orbit,
.okinavi-galaxy-portal-core,
.okinavi-galaxy-portal-filaments {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  pointer-events: none;
}

.okinavi-galaxy-portal-halo {
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, rgba(var(--portal-rgb), 0.3), rgba(var(--portal-rgb), 0.06) 44%, rgba(0, 0, 0, 0) 76%);
  filter: blur(20px) saturate(1.05);
  opacity: calc(0.74 + var(--portal-breath) * 0.14);
}

.okinavi-galaxy-portal-orbit {
  width: 78%;
  height: 78%;
  border: 1px solid rgba(var(--portal-rgb), 0.18);
  box-shadow:
    inset 0 0 18px rgba(var(--portal-rgb), 0.08),
    0 0 24px rgba(var(--portal-rgb), 0.14);
  opacity: calc(0.84 + var(--portal-breath) * 0.12);
}

.okinavi-galaxy-portal-core {
  width: 42%;
  height: 42%;
  background:
    radial-gradient(circle at 38% 38%, rgba(255, 255, 255, 0.98) 0%, rgba(242, 248, 255, 0.92) 22%, rgba(var(--portal-rgb), 0.76) 48%, rgba(var(--portal-rgb), 0.18) 72%, rgba(0, 0, 0, 0) 100%);
  box-shadow:
    0 0 38px rgba(var(--portal-rgb), 0.24),
    0 0 88px rgba(var(--portal-rgb), 0.12);
  transform: translate(-50%, -50%) scale(calc(1 + var(--portal-breath) * 0.02));
}

.okinavi-galaxy-portal-filaments {
  width: 116%;
  height: 116%;
  background:
    radial-gradient(circle at 28% 50%, rgba(var(--portal-rgb), 0.42) 0%, rgba(var(--portal-rgb), 0.18) 6%, rgba(0, 0, 0, 0) 18%),
    radial-gradient(circle at 72% 50%, rgba(var(--portal-rgb), 0.36) 0%, rgba(var(--portal-rgb), 0.16) 6%, rgba(0, 0, 0, 0) 18%),
    linear-gradient(90deg, rgba(0, 0, 0, 0) 0%, rgba(var(--portal-rgb), 0.06) 42%, rgba(255, 255, 255, 0.2) 50%, rgba(var(--portal-rgb), 0.06) 58%, rgba(0, 0, 0, 0) 100%);
  filter: blur(14px);
  mix-blend-mode: screen;
  opacity: calc(0.45 + var(--portal-sheen) * 0.18);
}

.okinavi-galaxy-portal-meta {
  display: grid;
  gap: 0.28rem;
  text-align: center;
}

.okinavi-galaxy-portal-name,
.okinavi-galaxy-portal-note {
  margin: 0;
}

.okinavi-galaxy-portal-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.16rem;
  text-transform: uppercase;
}

.okinavi-galaxy-portal-note {
  color: rgba(201, 211, 232, 0.68);
  font-size: 0.78rem;
  line-height: 1.4;
}

.okinavi-route-transition {
  position: fixed;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(circle at 50% 50%, rgba(var(--active-rgb, 191, 220, 255), 0.22) 0%, rgba(7, 10, 19, 0.44) 30%, rgba(3, 5, 10, 0.78) 60%, rgba(2, 3, 8, 0.98) 100%);
  transform: scale(1);
  transition: opacity 240ms ease, transform 240ms ease;
}

.okinavi-galaxy-root[data-transitioning="true"] .okinavi-route-transition {
  opacity: 1;
  transform: scale(1.04);
}

.okinavi-galaxy-root[data-transitioning="true"] .okinavi-galaxy-shell {
  opacity: 0.84;
  transform: scale(1.015);
  transition: transform 240ms ease, opacity 220ms ease;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 960px) {
  .okinavi-galaxy-shell {
    gap: 0.78rem;
    padding: 1.45rem 0.9rem 1rem;
  }

  .okinavi-galaxy-brand {
    gap: 0.35rem;
  }

  .okinavi-galaxy-kicker {
    font-size: 0.66rem;
    letter-spacing: 0.28rem;
  }

  .okinavi-galaxy-title {
    font-size: clamp(2.25rem, 13vw, 3.8rem);
  }

  .okinavi-galaxy-subtitle {
    font-size: 0.82rem;
    letter-spacing: 0.12rem;
  }

  .okinavi-galaxy-core {
    width: min(84vw, 420px);
    height: clamp(54px, 9vw, 76px);
  }

  .okinavi-galaxy-portals {
    grid-template-columns: 1fr;
    width: min(520px, 100%);
    gap: 0.45rem;
  }

  .okinavi-galaxy-portal {
    width: 100%;
    min-height: clamp(148px, 26vw, 174px);
  }

  .okinavi-galaxy-portal-motion,
  .okinavi-galaxy-portal-body {
    width: 100%;
    min-height: clamp(148px, 26vw, 174px);
  }

  .okinavi-galaxy-portal-body {
    width: min(100%, 282px);
  }

  .okinavi-galaxy-nebula-a {
    width: 88vw;
    height: 44vw;
    inset: 6% auto auto -8%;
  }

  .okinavi-galaxy-nebula-b {
    width: 82vw;
    height: 40vw;
    inset: auto -10% 8% auto;
  }

  .okinavi-galaxy-portal-visual {
    width: min(132px, 48vw);
  }

  .okinavi-galaxy-portal-name {
    font-size: 0.88rem;
    letter-spacing: 0.13rem;
  }

  .okinavi-galaxy-portal-note {
    font-size: 0.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .okinavi-galaxy-space,
  .okinavi-galaxy-nebula,
  .okinavi-galaxy-stars,
  .okinavi-galaxy-particles,
  .okinavi-galaxy-portal-motion,
  .okinavi-route-transition,
  .okinavi-galaxy-shell {
    transition: none !important;
    transform: none !important;
    animation: none !important;
  }

  .okinavi-galaxy-portal-body::before,
  .okinavi-galaxy-portal-body::after,
  .okinavi-galaxy-portal-halo,
  .okinavi-galaxy-portal-orbit,
  .okinavi-galaxy-portal-filaments {
    animation: none !important;
  }
}