/* Sigma Tactical Group animated dial (background). */

:root {
  --sigma-brass: #c9a962;
  --sigma-ink: #0d1117;
  --sigma-ink-2: #21262d;
  --sigma-ink-3: #30363d;
  --sigma-ink-4: #484f58;
  --sigma-mono:
    ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
}

.hero-shell {
  position: relative;
  flex: 1 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: min(70vh, 640px);
}

.hero-bg {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  opacity: 0.6;
  mask-image: radial-gradient(circle at center, black 32%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at center, black 32%, transparent 72%);
}

.sigma-dial {
  width: min(120vh, 900px);
  height: min(120vh, 900px);
  max-width: 95vw;
  animation: sigma-dial-drift 240s linear infinite;
}

.sigma-sight {
  transform-origin: center;
  animation: sigma-sight-sweep 90s ease-in-out infinite alternate;
}

@keyframes sigma-dial-drift {
  from {
    transform: rotate(0);
  }
  to {
    transform: rotate(-360deg);
  }
}

@keyframes sigma-sight-sweep {
  0% {
    transform: rotate(-12deg);
  }
  50% {
    transform: rotate(8deg);
  }
  100% {
    transform: rotate(-4deg);
  }
}

.hero-content-layer {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 3rem 1rem;
}

@media (max-width: 576px) {
  .sigma-dial {
    width: min(100vw, 520px);
    height: min(100vw, 520px);
  }
}

/* Respect users who ask for less motion: hold the dial and sight still. */
@media (prefers-reduced-motion: reduce) {
  .sigma-dial,
  .sigma-sight {
    animation: none;
  }
}