.integrity-check {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px 20px;
  align-items: center;
  max-width: 650px;
  margin-top: 28px;
  padding: 18px;
  border: 1px solid var(--line);
  background: #0d0f0c;
}

.integrity-check .kicker {
  margin-bottom: 5px;
}

.integrity-check p:not(.kicker) {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.integrity-check output {
  grid-column: 1 / -1;
  min-height: 18px;
  color: var(--muted);
  font: 9px/1.5 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.integrity-check output.gate-blocked {
  color: var(--acid);
}

.integrity-check output.gate-failed-open {
  color: var(--orange);
}

.shareable-summary {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin: 28px 0;
  padding: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, #151912, #0d0f0c);
}

.shareable-summary span,
.shareable-summary small {
  color: var(--muted);
  font: 9px/1.5 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.shareable-summary strong {
  color: var(--acid);
  font: 24px/1.2 var(--serif);
}

.mastery-delta {
  margin-top: 5px;
  color: var(--muted);
  font: 9px var(--mono);
}

progress.mastery-track {
  width: 100%;
  border: 0;
  appearance: none;
}

progress.mastery-track::-webkit-progress-bar {
  background: #252820;
}

progress.mastery-track::-webkit-progress-value,
progress.mastery-track::-moz-progress-bar {
  background: var(--acid);
}

.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;
}

:is(.action, .button, .option, input, textarea, a):focus-visible,
.option:has(input:focus-visible) {
  outline: 3px solid var(--acid);
  outline-offset: 3px;
}

.timer-status {
  margin: 0 0 12px;
  color: var(--orange);
}

.decision-footer > div {
  display: flex;
  gap: 8px;
}

@media (max-width: 620px) {
  .integrity-check {
    grid-template-columns: 1fr;
  }

  .integrity-check output {
    grid-column: 1;
  }
}

@media print {
  .site-header,
  footer,
  .result-card button,
  .mastery-panel {
    display: none !important;
  }

  .screen.results-screen.active {
    display: block;
  }

  .result-card {
    color: #111;
  }
}