:root {
  color-scheme: dark;
  --void: #06100f;
  --void-soft: #0c1816;
  --ink: #eff8f3;
  --line: rgba(218, 239, 229, 0.28);
  --focus: #f2ce70;
  --control: rgba(9, 24, 22, 0.78);
  --control-hover: rgba(21, 48, 43, 0.9);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-width: 320px;
  min-height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background: linear-gradient(145deg, #06100f, #0f1d23 48%, #120f1f);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button {
  font: inherit;
}

button:focus-visible,
.skip-link:focus-visible,
.observatory-canvas:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 40;
  transform: translateY(-140%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--control);
  color: var(--ink);
  padding: 10px 12px;
  text-decoration: none;
  backdrop-filter: blur(18px);
}

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

.observatory {
  position: relative;
  width: 100vw;
  height: 100dvh;
  min-height: 520px;
  isolation: isolate;
}

.observatory::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 46px 46px;
}

.observatory::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 18%, transparent 82%, rgba(0, 0, 0, 0.28));
  pointer-events: none;
}

.observatory-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
  touch-action: manipulation;
}

.observatory-controls {
  position: fixed;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  z-index: 30;
  display: flex;
  gap: 10px;
}

.icon-button {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--control);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(18px);
}

.icon-button:hover {
  background: var(--control-hover);
}

.icon-button[aria-pressed="true"] .icon-motion::after {
  transform: translate(-50%, -50%) rotate(45deg);
  opacity: 1;
}

.icon {
  position: relative;
  display: block;
  width: 24px;
  height: 24px;
}

.icon-motion::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
}

.icon-motion::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 26px;
  border-radius: 2px;
  background: currentColor;
  opacity: 0;
  transform: translate(-50%, -50%) rotate(0deg);
  transition: transform 160ms ease, opacity 160ms ease;
}

.icon-scope::before,
.icon-scope::after {
  content: "";
  position: absolute;
  border: 2px solid currentColor;
  border-radius: 50%;
}

.icon-scope::before {
  inset: 3px;
}

.icon-scope::after {
  inset: 9px;
  background: currentColor;
  box-shadow:
    0 -8px 0 -4px currentColor,
    7px 5px 0 -4px currentColor,
    -7px 5px 0 -4px currentColor;
}

.visual-key {
  position: fixed;
  left: max(16px, env(safe-area-inset-left));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 28;
  display: flex;
  gap: 8px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--control);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(18px);
}

.key-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  box-shadow: 0 0 16px currentColor;
}

.state-active {
  color: #65d89f;
  background: #65d89f;
}

.state-review {
  color: #82b7f2;
  background: #82b7f2;
}

.state-wait {
  color: #f1c56f;
  background: #f1c56f;
}

.state-guard {
  color: #d98975;
  background: #d98975;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}

@media (max-width: 680px) {
  .observatory {
    min-height: 100dvh;
  }

  .icon-button {
    width: 42px;
    height: 42px;
  }

  .visual-key {
    gap: 6px;
    padding: 8px;
  }
}