:root {
  color-scheme: dark;
  --paper: #090c0e;
  --ink: #f1eee7;
  --muted: #8c9798;
  --line: #ffffff14;
  --glow: #31a18d13;
}
:root[data-theme="light"] {
  color-scheme: light;
  --paper: #f4f2eb;
  --ink: #242f2e;
  --muted: #5c6e6a;
  --line: #233c351c;
  --glow: #489c8718;
}
* { box-sizing: border-box; }
html, body { margin: 0; width: 100%; min-height: 100%; }
body { background: var(--paper); color: var(--ink); overflow: hidden; }
main { position: relative; height: 100svh; min-height: 240px; isolation: isolate; overflow: hidden; }
#field { position: absolute; inset: 0; width: 100%; height: 100%; }
.aura {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 32% 38% at 50% 50%, var(--glow), transparent 90%);
}
.identity { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.mark { width: min(84vw, 70svh, 560px); }
.mark svg { width: 100%; height: auto; display: block; }
[data-particles="ready"] .mark { opacity: 0; }
.controls {
  position: fixed; z-index: 2;
  bottom: max(24px, env(safe-area-inset-bottom));
  right: max(26px, env(safe-area-inset-right));
  display: flex; gap: 8px;
}
.controls[hidden] { display: none; }
.control {
  color: var(--muted); background: transparent; border: 1px solid transparent;
  border-radius: 50%; width: 44px; height: 44px; padding: 12px;
  cursor: pointer; transition: color 180ms, border-color 180ms, background 180ms;
  -webkit-tap-highlight-color: transparent; touch-action: manipulation;
}
.control:hover { color: var(--ink); border-color: var(--line); background: var(--line); }
.control:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.control svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.play-icon, .moon-icon, [data-theme="light"] .sun-icon, [data-paused="true"] .pause-icon { display: none; }
[data-theme="light"] .moon-icon, [data-paused="true"] .play-icon { display: block; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media (max-width: 600px) { .controls { bottom: max(18px, env(safe-area-inset-bottom)); right: max(18px, env(safe-area-inset-right)); } }
@media (prefers-reduced-motion: reduce) { .control { transition: none; } }