:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #06080e;
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  min-width: 0;
  min-height: 100%;
  margin: 0;
  overflow: hidden;
  background: #06080e;
}

body {
  --demo-accent: #7a8fff;
  --demo-accent-soft: rgba(122, 143, 255, 0.2);
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  place-items: center;
  color: #f3f5fb;
  background:
    radial-gradient(circle at 34% 45%, var(--demo-accent-soft), transparent 31rem),
    linear-gradient(135deg, #05070c 0%, #0a0d15 58%, #06080e 100%);
}

body[data-demo-theme="deep"] {
  --demo-accent: #46d8d0;
  --demo-accent-soft: rgba(70, 216, 208, 0.18);
}

body::before,
body::after {
  position: fixed;
  z-index: 0;
  width: 30rem;
  height: 30rem;
  border: 1px solid color-mix(in srgb, var(--demo-accent) 24%, transparent);
  border-radius: 50%;
  content: "";
  pointer-events: none;
  animation: orbit 18s linear infinite;
}

body::before { top: -20rem; right: -10rem; }
body::after { bottom: -23rem; left: -8rem; animation-direction: reverse; animation-duration: 24s; }

.demo-theatre {
  --demo-shell-block-pad: 1.5rem;
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(17rem, 21rem);
  align-items: center;
  justify-content: center;
  width: min(100%, 72rem);
  height: 100vh;
  height: 100dvh;
  min-height: 0;
  padding: var(--demo-shell-block-pad) 1.5rem;
  gap: clamp(2rem, 6vw, 5.5rem);
}

.demo-exit {
  position: fixed;
  z-index: 5;
  top: max(0.75rem, env(safe-area-inset-top));
  left: max(0.75rem, env(safe-area-inset-left));
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 0.78rem;
  color: #eef1f8;
  background: rgba(7, 10, 17, 0.88);
  box-shadow: 0 0.65rem 2rem rgba(0, 0, 0, 0.32);
  font: 750 0.72rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.06em;
  text-decoration: none;
  backdrop-filter: blur(14px);
  transition: color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.demo-exit > span:first-child { color: var(--demo-accent); font-size: 1rem; }
.demo-exit:hover,
.demo-exit:focus-visible { border-color: var(--demo-accent); color: var(--demo-accent); transform: translateX(-0.16rem); }

.demo-stage {
  position: relative;
  width: auto;
  max-width: 24.375rem;
  height: min(52.75rem, calc(100vh - 3rem));
  height: min(52.75rem, calc(100dvh - 3rem));
  aspect-ratio: 390 / 844;
  overflow: hidden;
  border: 0;
  border-radius: 1.45rem;
  background: #000;
  box-shadow: 0 0 0 0.38rem rgba(8, 10, 17, 0.92), 0 1.8rem 5.8rem rgba(0, 0, 0, 0.58), 0 0 3.5rem var(--demo-accent-soft);
}

.demo-stage::before {
  position: absolute;
  z-index: 2;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--demo-accent) 68%, #ffffff 10%);
  content: "";
  pointer-events: none;
}

.demo-stage::after {
  position: absolute;
  z-index: 3;
  top: 0;
  left: 12%;
  width: 42%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--demo-accent), transparent);
  content: "";
  pointer-events: none;
  animation: scan 3.8s ease-in-out infinite;
}

.game-frame { display: block; width: 100%; height: 100%; border: 0; background: #000; }

.demo-context {
  position: relative;
  min-height: 0;
  max-height: calc(100vh - var(--demo-shell-block-pad) - var(--demo-shell-block-pad));
  max-height: calc(100dvh - var(--demo-shell-block-pad) - var(--demo-shell-block-pad));
  overflow-y: auto;
  overscroll-behavior-y: contain;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--demo-accent) 44%, transparent) transparent;
  padding-left: clamp(1.4rem, 3vw, 2.6rem);
  padding-right: 0.4rem;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.demo-context::before {
  position: absolute;
  top: 0;
  left: -1px;
  width: 1px;
  height: 5rem;
  background: linear-gradient(var(--demo-accent), transparent);
  content: "";
}

.demo-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: clamp(3rem, 9vh, 6rem);
  color: #edf0f7;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.05em;
  text-decoration: none;
}

.demo-brand > span:first-child {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 0.72rem;
  color: var(--demo-accent);
  background: rgba(255, 255, 255, 0.04);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.demo-brand > span:last-child,
.demo-context h1 span { color: var(--demo-accent); }

.demo-kicker {
  margin: 0 0 1.2rem;
  color: color-mix(in srgb, var(--demo-accent) 82%, #ffffff 18%);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.demo-context h1 { margin: 0; font-size: clamp(2.5rem, 5vw, 4.5rem); line-height: 0.94; letter-spacing: -0.055em; }
.demo-context h1 span { font-size: 0.68em; letter-spacing: -0.04em; }
.demo-lead { max-width: 31rem; margin: 1.8rem 0 0; color: #aeb5c4; font-size: 0.96rem; line-height: 1.85; }
.demo-facts { display: grid; margin: 2.1rem 0 0; border-top: 1px solid rgba(255, 255, 255, 0.1); }
.demo-facts div { display: grid; grid-template-columns: 3.4rem 1fr; padding: 0.72rem 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); gap: 0.8rem; }
.demo-facts dt,
.demo-facts dd { margin: 0; font-size: 0.76rem; line-height: 1.5; }
.demo-facts dt { color: #687184; }
.demo-facts dd { color: #cdd2dd; }

.demo-back {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 2rem;
  color: #eef1f8;
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
  transition: color 180ms ease, transform 180ms ease;
}

.demo-back span { color: var(--demo-accent); }
.demo-back:hover,
.demo-back:focus-visible { color: var(--demo-accent); transform: translateX(0.25rem); }
.demo-brand:focus-visible,
.demo-back:focus-visible,
.demo-exit:focus-visible,
.game-frame:focus-visible { outline: 2px solid var(--demo-accent); outline-offset: 0.32rem; }

@keyframes scan {
  0%, 100% { transform: translateX(-15%); opacity: 0.35; }
  50% { transform: translateX(130%); opacity: 1; }
}

@keyframes orbit { to { transform: rotate(360deg); } }

@media (min-width: 47.5001rem) and (max-height: 42rem) {
  .demo-theatre {
    --demo-shell-block-pad: 0.5rem;
    grid-template-columns: minmax(0, auto) minmax(15rem, 20rem);
    padding-right: 1rem;
    padding-left: 1rem;
    gap: clamp(1rem, 4vw, 2.25rem);
  }

  .demo-stage {
    height: min(52.75rem, calc(100vh - 1rem));
    height: min(52.75rem, calc(100dvh - 1rem));
  }

  .demo-exit {
    top: max(0.5rem, env(safe-area-inset-top));
    left: max(0.5rem, env(safe-area-inset-left));
  }

  .demo-brand { display: none; }
  .demo-context { padding-left: clamp(1rem, 2.5vw, 1.6rem); }
  .demo-kicker { margin-bottom: 0.55rem; }
  .demo-context h1 { font-size: clamp(1.65rem, 7vh, 2.7rem); }
  .demo-lead { margin-top: 0.75rem; line-height: 1.5; }
  .demo-facts { margin-top: 0.75rem; }
  .demo-facts div { padding-top: 0.38rem; padding-bottom: 0.38rem; }
  .demo-back { margin-top: 0.75rem; min-height: 44px; }
}

@media (max-width: 47.5rem) {
  .demo-theatre {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: 44px minmax(0, 1fr);
    width: 100%;
    height: 100vh;
    height: 100dvh;
    padding: max(0.25rem, env(safe-area-inset-top)) 0 max(0.25rem, env(safe-area-inset-bottom));
    gap: 0;
    place-items: center;
  }

  .demo-exit {
    position: relative;
    z-index: 5;
    top: auto;
    left: auto;
    display: inline-flex;
    grid-row: 1;
    align-self: center;
    justify-self: start;
    margin-left: max(0.5rem, env(safe-area-inset-left));
    padding-top: 0.45rem;
    padding-bottom: 0.45rem;
    background: rgba(7, 10, 17, 0.76);
  }

  .demo-stage {
    grid-row: 2;
    width: auto;
    max-width: 100vw;
    height: min(52.75rem, 100%, 216.4103vw);
    border-radius: 0;
    box-shadow: none;
  }
  .demo-context { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  body::before,
  body::after,
  .demo-stage::after { animation: none; }
  .demo-back,
  .demo-exit { transition: none; }
}