/* The metallic border has transparent corners. Fill under its inner bevel,
   center labels on both axes, and keep all glow inside the physical frame. */
.campaign-button:not([hidden]), #btnStart:not([hidden]), #tutorialPrimary:not([hidden]) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.campaign-button[data-primary="true"]:not(.campaign-support-cta), #btnStart, #tutorialPrimary {
  --primary-fill-inset: 5px;
  background-image: linear-gradient(180deg, #8f2fbd 0%, #641080 100%);
  background-color: transparent;
  background-origin: border-box;
  background-clip: border-box;
  background-position: center;
  background-size: calc(100% - var(--primary-fill-inset) * 2) calc(100% - var(--primary-fill-inset) * 2);
  background-repeat: no-repeat;
  border-image-slice: 20;
  border-radius: 12px;
  box-shadow: none;
  color: #fff;
  text-shadow: 0 1px 2px #310841;
  transform: none;
}
.campaign-button[data-primary="true"]:not(.campaign-support-cta):enabled:hover,
#btnStart:enabled:hover, #tutorialPrimary:enabled:hover {
  background-image: linear-gradient(180deg, #a43acf 0%, #7d209c 100%);
  box-shadow: none;
  transform: none;
}
.campaign-button[data-primary="true"]:not(.campaign-support-cta):enabled:active,
#btnStart:enabled:active, #tutorialPrimary:enabled:active {
  background-image: linear-gradient(180deg, #62147e 0%, #792599 100%);
  box-shadow: none;
  transform: none;
}
#btnStart { --primary-fill-inset: 10px; }
#tutorialPrimary { --primary-fill-inset: 1px; border-radius: 2px; }

/* Plain black entry screen, intentionally without CRT/art behind the copy. */
.startup-disclaimer {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: auto;
  overscroll-behavior: contain;
  padding: max(24px, calc(var(--app-content-safe-top, env(safe-area-inset-top, 0px)) + 20px))
    max(22px, calc(var(--app-content-safe-right, env(safe-area-inset-right, 0px)) + 16px))
    max(24px, calc(var(--app-content-safe-bottom, env(safe-area-inset-bottom, 0px)) + 20px))
    max(22px, calc(var(--app-content-safe-left, env(safe-area-inset-left, 0px)) + 16px));
  background: #000;
  color: #dedde2;
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.55;
  text-align: left;
  user-select: text;
  -webkit-user-select: text;
}
.startup-disclaimer[hidden] { display: none; }
.startup-disclaimer-content {
  flex: 0 0 auto;
  width: min(700px, 100%);
  margin-block: auto;
  display: grid;
  gap: clamp(20px, 3vh, 28px);
}
.startup-disclaimer ul { display: grid; gap: 6px; margin-top: 12px; padding-left: 1.1em; list-style-type: '– '; }
.startup-disclaimer strong { color: #fff; }
.startup-disclaimer .campaign-button {
  justify-self: start;
  width: min(260px, 100%);
  max-width: 260px;
  min-height: 52px;
  font-size: 16px;
  letter-spacing: .025em;
}
.startup-disclaimer .campaign-button:focus-visible { outline: 2px solid #fff; outline-offset: 2px; box-shadow: none; }
@media (max-width: 600px) { .startup-disclaimer .campaign-button { justify-self: center; } }