/* screens/mission-briefing.css — SECTION IX ミッションブリーフィング */
.sp-stage--mission-briefing .sp-stage__canvas {
  background:
    radial-gradient(circle at center, #10141c 0%, #050810 80%),
    #050810;
  color: #cad3e4;
  font-family: "SF Mono", "Menlo", "Consolas", "Roboto Mono", monospace;
  overflow: hidden;
}
.mb-wrap {
  position: absolute; inset: 0;
  display: grid; grid-template-rows: auto 1fr;
}
.mb-head {
  padding: 12px 24px;
  border-bottom: 1px solid #2a3548;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; letter-spacing: .14em;
  color: #7f8ba8;
}
.mb-head__brand { color: #cad3e4; font-weight: 700; letter-spacing: .2em; }
.mb-head__doc   { color: #5f6a85; font-size: 11px; }
.mb-head__stamp {
  color: #ffb6b6; letter-spacing: .18em; font-size: 10px;
  border: 1px solid #7a2626; padding: 2px 8px;
}

.mb-body {
  padding: 40px min(80px, 8vw);
  overflow: hidden;
  display: flex; flex-direction: column; gap: 20px;
  position: relative;
}

.mb-classify {
  font-size: 15px; letter-spacing: .3em; font-weight: 700;
  padding: 6px 20px; align-self: flex-start;
  border: 1px solid rgba(255,255,255,.2);
  visibility: hidden;
  animation: mb-appear .35s ease-out;
}
@keyframes mb-appear { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

.mb-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
.mb-field {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 20px;
  padding: 8px 12px;
  border-bottom: 1px dotted #2a3548;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.mb-field.is-shown { opacity: 1; transform: none; }
.mb-label { color: #5f6a85; font-size: 11px; letter-spacing: .18em; }
.mb-val   { color: #f2f5fa; font-size: 14px; word-break: break-word; }
.mb-val.num { font-variant-numeric: tabular-nums; letter-spacing: .05em; }

.mb-briefing {
  margin-top: 8px;
  border-top: 2px solid #2a3548;
  padding-top: 16px;
  display: none;
  animation: mb-appear .4s ease-out;
}
.mb-briefing__label {
  color: #5f6a85; font-size: 11px; letter-spacing: .18em;
  margin-bottom: 8px;
}
.mb-briefing__body {
  color: #cad3e4;
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-wrap;
  margin: 0;
  min-height: 3em;
  padding: 12px 16px;
  background: rgba(20, 26, 40, .55);
  border-left: 3px solid #4d5e85;
}

.mb-hint {
  position: absolute; bottom: 16px; right: 24px;
  color: #4d5e85; font-size: 10px; letter-spacing: .14em;
  animation: mb-blink 2s ease-in-out infinite;
}
@keyframes mb-blink { 0%,100%{opacity:1;} 50%{opacity:.4;} }

@media (max-width: 800px) {
  .mb-body { padding: 20px 16px; gap: 12px; }
  .mb-field { grid-template-columns: 100px 1fr; gap: 10px; padding: 6px 4px; }
  .mb-briefing__body { font-size: 13px; padding: 10px 12px; }
}