.glass-panel {
  background: var(--glass-surface);
  border: var(--line) solid var(--glass-border);
  box-shadow:
    0 0 24px color-mix(in srgb, var(--glow-cyan) 45%, var(--transparent)),
    inset 0 0 24px var(--glass-blue);
  backdrop-filter: blur(18px) saturate(140%);
}

.hud-bracket {
  position: absolute;
  width: 36px;
  height: 36px;
  z-index: 2;
  pointer-events: none;
}

.hud-bracket::before,
.hud-bracket::after {
  position: absolute;
  content: "";
  background: var(--accent-cyan);
  box-shadow: 0 0 12px var(--glow-cyan);
}

.hud-bracket::before {
  width: 16px;
  height: 1.5px;
}

.hud-bracket::after {
  width: 1.5px;
  height: 16px;
}

.hud-bracket--tl {
  top: 24px;
  left: 20px;
}

.hud-bracket--tl::before,
.hud-bracket--tl::after,
.hud-bracket--tr::before,
.hud-bracket--tr::after {
  top: 0;
}

.hud-bracket--tl::before,
.hud-bracket--tl::after,
.hud-bracket--bl::before,
.hud-bracket--bl::after {
  left: 0;
}

.hud-bracket--tr {
  top: 24px;
  right: 20px;
}

.hud-bracket--tr::before,
.hud-bracket--tr::after,
.hud-bracket--br::before,
.hud-bracket--br::after {
  right: 0;
}

.hud-bracket--bl {
  bottom: 24px;
  left: 20px;
}

.hud-bracket--br {
  right: 20px;
  bottom: 24px;
}

.hud-bracket--bl::before,
.hud-bracket--bl::after,
.hud-bracket--br::before,
.hud-bracket--br::after {
  bottom: 0;
}

.cta-button {
  display: inline-flex;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  padding: 0 28px;
  border-radius: 999px;
  background:
    linear-gradient(100deg, var(--accent-cyan), var(--accent-blue), var(--accent-magenta), var(--accent-pink));
  color: var(--text-primary);
  box-shadow:
    0 0 24px var(--glow-cyan),
    0 0 42px var(--glow-magenta);
  font-weight: 800;
  text-decoration: none;
  transition: filter 200ms ease, box-shadow 200ms ease, transform 200ms ease;
}

.cta-button:hover,
.cta-button:focus-visible {
  filter: brightness(1.15);
  box-shadow:
    0 0 30px var(--glow-cyan),
    0 0 64px var(--glow-magenta),
    0 0 18px var(--glow-gold);
  transform: translateY(-1px);
}

.cta-button:focus-visible,
.alert-card__cta:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 4px;
}

.scanline-host::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background: linear-gradient(to bottom, var(--transparent), var(--scanline), var(--transparent));
  transform: translateY(-100%);
  animation: scanline 6s linear infinite;
  mix-blend-mode: screen;
}

.hex-pattern {
  position: absolute;
  width: 180px;
  height: 180px;
  opacity: 0.34;
  pointer-events: none;
  background-image:
    url("data:image/svg+xml,%3Csvg width='80' height='70' viewBox='0 0 80 70' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%2300e4ff' stroke-opacity='.5'%3E%3Cpath d='M20 2h20l10 17-10 17H20L10 19z'/%3E%3Cpath d='M60 35h20l10 17-10 17H60L50 52z'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 80px 70px;
}