:root {
  color-scheme: dark;
  --bg: #030509;
  --ink: #f5f7fb;
  --muted: #a9b4c4;
  --line: rgba(255, 255, 255, 0.14);
  --panel: rgba(8, 11, 18, 0.68);
  --cyan: #38d8ff;
  --pink: #ff3da8;
  --lime: #b8ff4d;
  --amber: #ffb84d;
  --red: #ff4d5f;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.world-canvas {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, #10172a 0, #030509 52%, #010208 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at var(--cursor-x, 50%) var(--cursor-y, 50%), rgba(56, 216, 255, 0.14), transparent 18rem),
    radial-gradient(circle at 75% 20%, rgba(255, 61, 168, 0.11), transparent 28rem),
    linear-gradient(180deg, rgba(3, 5, 9, 0), #030509 94%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Space Grotesk", Inter, sans-serif;
  font-weight: 700;
}

.brand-mark {
  width: 16px;
  height: 16px;
  border: 2px solid var(--cyan);
  box-shadow: 8px 0 0 var(--pink), 4px 8px 0 var(--lime);
}

.portal-header,
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px clamp(18px, 4vw, 46px);
  border-bottom: 1px solid var(--line);
  background: rgba(3, 5, 9, 0.58);
  backdrop-filter: blur(18px);
}

.site-nav {
  display: flex;
  gap: 8px;
  align-items: center;
}

.site-nav a {
  padding: 9px 10px;
  color: var(--muted);
  font-size: 0.88rem;
  border: 1px solid transparent;
}

.site-nav a:hover {
  color: var(--ink);
  border-color: var(--line);
}

.portal {
  min-height: 100vh;
  display: grid;
  align-items: center;
  justify-items: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: 120px clamp(18px, 4vw, 36px) 58px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Space Grotesk", Inter, sans-serif;
  line-height: 1;
}

.portal p,
.universe-hero p,
.content-grid p {
  color: var(--muted);
}

.multiverse {
  overflow: hidden;
}

.galaxy-map {
  position: relative;
  width: min(86vw, 880px);
  aspect-ratio: 1;
  max-height: 76vh;
  background:
    radial-gradient(circle at 50% 50%, rgba(56, 216, 255, 0.09), transparent 15%),
    radial-gradient(circle at 50% 50%, transparent 0 30%, rgba(255, 255, 255, 0.11) 30.1%, transparent 30.7%),
    radial-gradient(circle at 50% 50%, transparent 0 47%, rgba(255, 255, 255, 0.09) 47.1%, transparent 47.7%),
    radial-gradient(circle at 50% 50%, transparent 0 63%, rgba(255, 255, 255, 0.07) 63.1%, transparent 63.7%);
  border-radius: 50%;
  animation: mapDrift 22s ease-in-out infinite alternate;
}

.world-core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: clamp(150px, 20vw, 220px);
  height: clamp(150px, 20vw, 220px);
  display: grid;
  align-content: center;
  place-items: center;
  transform: translate(-50%, -50%);
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  font-family: "Space Grotesk", Inter, sans-serif;
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.16), transparent 62%),
    rgba(8, 11, 18, 0.46);
  box-shadow:
    0 0 70px rgba(56, 216, 255, 0.22),
    inset 0 0 38px rgba(255, 255, 255, 0.08);
  text-transform: uppercase;
}

.world-core span {
  font-size: clamp(1rem, 2vw, 1.35rem);
  color: var(--muted);
}

.world-core strong {
  font-size: clamp(2.5rem, 6vw, 4.6rem);
  line-height: 0.9;
}

.galaxy-node {
  --node-color: var(--cyan);
  position: absolute;
  width: clamp(120px, 15vw, 178px);
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transform: translate(-50%, -50%);
  transition: transform 220ms ease, filter 220ms ease;
}

.galaxy-node:hover,
.galaxy-node:focus-visible {
  transform: translate(-50%, -50%) scale(1.12);
  filter: saturate(1.2);
}

.galaxy-node.cosmo {
  --node-color: var(--cyan);
  left: 18%;
  top: 30%;
  animation: orbitFloat 7s ease-in-out infinite;
}

.galaxy-node.holo {
  --node-color: var(--pink);
  left: 72%;
  top: 22%;
  animation: orbitFloat 8.5s ease-in-out infinite reverse;
}

.galaxy-node.neon {
  --node-color: var(--lime);
  left: 80%;
  top: 63%;
  animation: orbitFloat 9s ease-in-out infinite;
}

.galaxy-node.music {
  --node-color: var(--amber);
  left: 27%;
  top: 75%;
  animation: orbitFloat 8s ease-in-out infinite reverse;
}

.galaxy-node.art {
  --node-color: var(--red);
  left: 49%;
  top: 13%;
  animation: orbitFloat 7.5s ease-in-out infinite;
}

.galaxy-visual {
  position: absolute;
  inset: 10%;
  z-index: -1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, #fff 0 3%, var(--node-color) 4% 10%, transparent 11%),
    conic-gradient(from 40deg, transparent 0 18%, color-mix(in srgb, var(--node-color), white 15%) 20% 29%, transparent 32% 58%, var(--node-color) 61% 70%, transparent 73% 100%);
  box-shadow:
    0 0 34px color-mix(in srgb, var(--node-color), transparent 28%),
    inset 0 0 26px rgba(255, 255, 255, 0.15);
  animation: galaxySpin 14s linear infinite;
}

.galaxy-visual::after {
  content: "";
  position: absolute;
  inset: 32%;
  border-radius: 50%;
  background: #f8fbff;
  box-shadow: 0 0 20px #fff, 0 0 44px var(--node-color);
}

.galaxy-node strong {
  display: block;
  position: relative;
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(0.95rem, 1.8vw, 1.25rem);
  text-shadow: 0 2px 18px #030509;
}

.galaxy-node small {
  position: absolute;
  top: calc(100% - 8px);
  left: 50%;
  width: max-content;
  max-width: 190px;
  transform: translate(-50%, 8px);
  color: var(--muted);
  font-size: 0.78rem;
  opacity: 0;
  transition: opacity 180ms ease, transform 180ms ease;
}

.galaxy-node:hover small,
.galaxy-node:focus-visible small {
  opacity: 1;
  transform: translate(-50%, 0);
}

.warp-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(circle at var(--cursor-x, 50%) var(--cursor-y, 50%), transparent 0 5%, rgba(255, 255, 255, 0.18) 8%, rgba(56, 216, 255, 0.22) 16%, #030509 58%);
  transform: scale(0.2);
  transition: opacity 260ms ease, transform 620ms cubic-bezier(0.2, 0.85, 0.2, 1);
}

.warp-overlay span {
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(1.5rem, 5vw, 4rem);
  font-weight: 700;
  opacity: 0;
}

.warp-overlay.is-active {
  opacity: 1;
  transform: scale(3);
}

@keyframes galaxySpin {
  to {
    rotate: 360deg;
  }
}

@keyframes orbitFloat {
  0%,
  100% {
    margin-top: 0;
  }
  50% {
    margin-top: -16px;
  }
}

@keyframes mapDrift {
  from {
    transform: rotate(-1deg) scale(0.99);
  }
  to {
    transform: rotate(1deg) scale(1.01);
  }
}

.universe-layout {
  max-width: var(--max);
  margin: 0 auto;
  padding: 132px clamp(18px, 4vw, 36px) 70px;
}

.universe-hero {
  min-height: 48vh;
  display: flex;
  flex-direction: column;
  justify-content: end;
  padding-bottom: 36px;
}

.universe-hero h1 {
  max-width: 950px;
  font-size: clamp(3rem, 8vw, 7rem);
}

.universe-hero p:last-child {
  max-width: 680px;
  font-size: 1.1rem;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.content-grid article {
  min-height: 240px;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
}

.content-grid h2 {
  margin-bottom: 18px;
  font-size: 1.55rem;
}

.content-grid a {
  color: var(--cyan);
  font-weight: 800;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 10px;
  padding: 0 16px;
  border: 1px solid var(--line);
}

.button.primary {
  border-color: transparent;
  background: var(--ink);
  color: #030509;
}

.cosmo-theme .eyebrow,
.cosmo-theme .content-grid a {
  color: var(--cyan);
}

.holo-theme .eyebrow,
.holo-theme .content-grid a {
  color: var(--pink);
}

.neon-theme .eyebrow,
.neon-theme .content-grid a {
  color: var(--lime);
}

.music-theme .eyebrow,
.music-theme .content-grid a {
  color: var(--amber);
}

.art-theme .eyebrow,
.art-theme .content-grid a {
  color: var(--red);
}

@media (max-width: 980px) {
  .galaxy-map {
    width: min(94vw, 720px);
  }

  .content-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    flex-wrap: wrap;
  }

  .portal {
    padding-top: 96px;
  }

  .galaxy-map {
    width: 94vw;
    max-height: none;
    margin-top: 30px;
  }

  .world-core {
    width: 132px;
    height: 132px;
  }

  .galaxy-node {
    width: 104px;
  }

  .galaxy-node strong {
    font-size: 0.86rem;
  }

  .galaxy-node small {
    display: none;
  }

  .universe-hero h1 {
    font-size: 3rem;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }
}