.briefing-screen {
  position: absolute;
  inset: 0;
  z-index: var(--z-briefing);
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 42%, rgba(16, 24, 34, 0.62) 0%, rgba(4, 6, 9, 0.92) 78%);
  backdrop-filter: blur(8px);
  transition: opacity 0.85s var(--ease-cinema), visibility 0.85s var(--ease-cinema);
}

.briefing-screen.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.briefing-inner {
  text-align: center;
  max-width: 640px;
  padding: 2.5rem 2rem;
}

.briefing-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--accent-amber);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.briefing-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.6rem);
  font-weight: 300;
  letter-spacing: 0.24em;
  text-indent: 0.24em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.briefing-subtitle {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.22em;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
}

.briefing-specs {
  display: flex;
  justify-content: center;
  gap: 0.7rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 2.2rem;
}

.briefing-btn {
  appearance: none;
  padding: 0.9rem 2.4rem;
  border: 1px solid var(--border-strong);
  background: rgba(235, 182, 101, 0.12);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  letter-spacing: 0.14em;
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
}

.briefing-btn:hover:not(:disabled) {
  background: rgba(235, 182, 101, 0.24);
  border-color: var(--accent-amber);
  transform: translateY(-1px);
}

.briefing-btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

.briefing-hint {
  margin-top: 1.35rem;
  font-size: 0.74rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}