:root {
  --bg-0: #02070a;
  --bg-1: #030b10;
  --bg-2: #000000;
  --gold-0: #d6a84f;
  --gold-1: #ffd56a;
  --gold-2: #f5e6b8;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  overflow: hidden;
  background: #000;
  color: var(--gold-2);
  font-family: "Rajdhani", "Orbitron", "Segoe UI", sans-serif;
}

.skip-link {
  position: fixed;
  left: 10px;
  top: 10px;
  z-index: 90;
  transform: translateY(-160%);
  background: #fff;
  color: #000;
  border-radius: 8px;
  padding: 8px 10px;
  transition: transform 160ms ease;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.world-stage {
  position: relative;
  width: 100vw;
  height: 100svh;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(74, 56, 34, 0.56), transparent 64%),
    radial-gradient(80% 80% at 20% 72%, rgba(88, 63, 35, 0.2), transparent 70%),
    radial-gradient(82% 82% at 80% 28%, rgba(68, 48, 26, 0.22), transparent 70%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 52%, var(--bg-2));
}

.world-cosmic,
.world-scene-wrap,
.world-scene {
  position: absolute;
  inset: 0;
}

.world-cosmic {
  pointer-events: none;
}

.world-nebula {
  position: absolute;
  inset: -14%;
  filter: blur(44px);
  opacity: 0.45;
  mix-blend-mode: screen;
}

.world-nebula--a {
  background:
    radial-gradient(44% 30% at 63% 35%, rgba(214, 168, 79, 0.24), transparent 75%),
    radial-gradient(34% 24% at 30% 66%, rgba(168, 126, 62, 0.2), transparent 72%);
  animation: driftA 38s ease-in-out infinite alternate;
}

.world-nebula--b {
  opacity: 0.32;
  background:
    radial-gradient(42% 28% at 20% 24%, rgba(122, 91, 49, 0.17), transparent 72%),
    radial-gradient(40% 30% at 84% 76%, rgba(214, 168, 79, 0.16), transparent 75%);
  animation: driftB 54s ease-in-out infinite alternate;
}

.world-stars {
  position: absolute;
  inset: 0;
  opacity: 0.8;
  background-image:
    radial-gradient(circle at 8% 17%, rgba(245, 230, 184, 0.78) 0 1px, transparent 1.4px),
    radial-gradient(circle at 24% 72%, rgba(214, 168, 79, 0.62) 0 1px, transparent 1.4px),
    radial-gradient(circle at 43% 35%, rgba(255, 213, 106, 0.62) 0 1px, transparent 1.5px),
    radial-gradient(circle at 66% 57%, rgba(214, 168, 79, 0.56) 0 1px, transparent 1.4px),
    radial-gradient(circle at 77% 13%, rgba(245, 230, 184, 0.66) 0 1px, transparent 1.4px),
    radial-gradient(circle at 88% 86%, rgba(214, 168, 79, 0.58) 0 1px, transparent 1.4px);
  background-size: 220px 220px, 320px 320px, 380px 380px, 460px 460px, 560px 560px, 640px 640px;
  animation: starsDrift 120s linear infinite;
}

.world-grain {
  position: absolute;
  inset: 0;
  opacity: 0.08;
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 2px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.02) 0 1px, transparent 1px 2px);
  mix-blend-mode: soft-light;
}

.world-scene {
  cursor: grab;
}

.world-scene:active {
  cursor: grabbing;
}

.world-scene canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.world-fallback {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  border: 1px solid rgba(214, 168, 79, 0.35);
  border-radius: 8px;
  background: rgba(2, 12, 18, 0.88);
  color: rgba(245, 230, 184, 0.84);
  padding: 8px 12px;
  font-size: 0.84rem;
  letter-spacing: 0.05em;
}

.world-paths {
  position: absolute;
  inset: 0;
  z-index: 40;
  pointer-events: none;
}

.world-path {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
  color: var(--gold-0);
  opacity: 0.75;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: clamp(0.88rem, 0.86rem + 0.2vw, 1.05rem);
  font-weight: 600;
  line-height: 1;
  transition: opacity 160ms ease, text-shadow 200ms ease, color 160ms ease;
}

.world-path--left {
  left: 4vw;
}

.world-path--right {
  right: 4vw;
}

.world-path__line {
  width: 22px;
  height: 1px;
  background: rgba(214, 168, 79, 0.48);
  box-shadow: 0 0 9px rgba(214, 168, 79, 0.22);
  transition: width 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

@media (hover: hover) {
  .world-path:hover {
    opacity: 1;
    color: var(--gold-1);
    text-shadow: 0 0 12px rgba(214, 168, 79, 0.34);
  }

  .world-path:hover .world-path__line {
    width: 34px;
    background: rgba(255, 213, 106, 0.95);
    box-shadow: 0 0 14px rgba(214, 168, 79, 0.45);
  }
}

.world-path:focus-visible {
  opacity: 1;
  color: var(--gold-1);
  text-shadow: 0 0 12px rgba(214, 168, 79, 0.34);
  outline: 1px solid rgba(214, 168, 79, 0.65);
  outline-offset: 8px;
  border-radius: 2px;
}

.world-path:focus-visible .world-path__line {
  width: 34px;
  background: rgba(255, 213, 106, 0.95);
  box-shadow: 0 0 14px rgba(214, 168, 79, 0.45);
}

.world-stage.active-left .world-path--left,
.world-stage.active-right .world-path--right {
  opacity: 1;
  color: var(--gold-1);
  text-shadow: 0 0 12px rgba(214, 168, 79, 0.34);
}

.world-stage.active-left .world-path--left .world-path__line,
.world-stage.active-right .world-path--right .world-path__line {
  width: 34px;
  background: rgba(255, 213, 106, 0.95);
  box-shadow: 0 0 14px rgba(214, 168, 79, 0.45);
}

@keyframes driftA {
  from { transform: translate3d(-2%, -1%, 0) scale(1.02); }
  to { transform: translate3d(2%, 2%, 0) scale(1.06); }
}

@keyframes driftB {
  from { transform: translate3d(1%, -2%, 0) scale(1.02); }
  to { transform: translate3d(-2%, 2%, 0) scale(1.08); }
}

@keyframes starsDrift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-48px, 30px, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .world-nebula,
  .world-stars {
    animation: none;
  }
}

@media (max-width: 900px) {
  .world-paths {
    inset: auto 0 0 0;
    z-index: 45;
    display: grid;
    grid-template-columns: 1fr 1fr;
    justify-items: center;
    align-items: end;
    gap: 14px;
    padding:
      0
      max(18px, env(safe-area-inset-right))
      calc(max(28px, env(safe-area-inset-bottom)) + 16px)
      max(18px, env(safe-area-inset-left));
  }

  .world-path {
    position: static;
    top: auto;
    transform: none;
    min-height: 44px;
    padding: 8px 8px;
    font-size: 0.86rem;
    letter-spacing: 0.16em;
    gap: 8px;
    white-space: nowrap;
  }

  .world-path__line {
    width: 16px;
  }
}