/* Stage 444 · Broker Platform Integration Fabric + Full-System Functional QA */
:root {
  --stage444-bg: rgba(3, 12, 23, .86);
  --stage444-card: rgba(255,255,255,.072);
  --stage444-border: rgba(112, 246, 198, .22);
  --stage444-text: #f1fffb;
  --stage444-muted: rgba(241,255,251,.72);
  --stage444-green: #75f1c2;
  --stage444-gold: #f5c76b;
  --stage444-red: #ff7896;
  --stage444-blue: #82b7ff;
}
.stage444-platform-core {
  position: relative;
  z-index: 3;
  width: min(1200px, calc(100% - 28px));
  margin: clamp(18px, 3vw, 38px) auto;
  border: 1px solid var(--stage444-border);
  border-radius: 30px;
  color: var(--stage444-text);
  padding: clamp(18px, 3vw, 30px);
  background:
    radial-gradient(circle at 10% 0%, rgba(117,241,194,.18), transparent 32%),
    radial-gradient(circle at 90% 10%, rgba(245,199,107,.13), transparent 34%),
    linear-gradient(140deg, rgba(6,22,40,.95), rgba(4,11,22,.90));
  box-shadow: 0 28px 90px rgba(0,0,0,.38), inset 0 1px rgba(255,255,255,.08);
  overflow: hidden;
}
.stage444-platform-core::before {
  content: "";
  position: absolute;
  inset: -1px;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at 24% 10%, #000 0, transparent 64%);
}
.stage444-header,
.stage444-grid,
.stage444-actions,
.stage444-panels { position: relative; }
.stage444-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 18px;
}
.stage444-kicker {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  border: 1px solid rgba(117,241,194,.28);
  border-radius: 999px;
  padding: 7px 12px;
  color: var(--stage444-green);
  background: rgba(117,241,194,.08);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .09em;
}
.stage444-title {
  margin: 12px 0 8px;
  font-size: clamp(24px, 4vw, 44px);
  line-height: 1.02;
  letter-spacing: -.045em;
}
.stage444-copy {
  max-width: 850px;
  margin: 0;
  color: var(--stage444-muted);
  line-height: 1.65;
}
.stage444-status {
  min-width: 180px;
  border: 1px solid rgba(245,199,107,.28);
  border-radius: 18px;
  padding: 12px 14px;
  color: var(--stage444-gold);
  background: rgba(245,199,107,.08);
  font-weight: 900;
  text-align: right;
}
.stage444-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.stage444-card {
  min-height: 126px;
  border: 1px solid rgba(255,255,255,.105);
  border-radius: 22px;
  padding: 16px;
  background: var(--stage444-card);
  backdrop-filter: blur(14px);
}
.stage444-card strong {
  display:block;
  color: rgba(241,255,251,.72);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.stage444-card b {
  display:block;
  margin-top: 8px;
  font-size: clamp(22px, 3vw, 34px);
  letter-spacing: -.03em;
}
.stage444-card span {
  display:block;
  margin-top: 7px;
  color: var(--stage444-muted);
  line-height: 1.45;
}
.stage444-actions {
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0;
}
.stage444-btn {
  appearance:none;
  border: 1px solid rgba(117,241,194,.28);
  border-radius: 999px;
  min-height: 44px;
  padding: 11px 15px;
  color: var(--stage444-text);
  background: rgba(117,241,194,.095);
  font-weight: 900;
  cursor:pointer;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.stage444-btn:hover,
.stage444-btn:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(117,241,194,.65);
  background: rgba(117,241,194,.17);
  outline: none;
}
.stage444-btn[disabled] { opacity:.55; cursor:wait; }
.stage444-panels {
  display:grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: 14px;
}
.stage444-panel {
  border: 1px solid rgba(255,255,255,.105);
  border-radius: 22px;
  padding: 16px;
  background: rgba(0,0,0,.20);
  min-width: 0;
}
.stage444-panel h3 {
  margin: 0 0 12px;
  font-size: 17px;
}
.stage444-list {
  display:grid;
  gap: 8px;
  max-height: 330px;
  overflow:auto;
  padding-right: 4px;
}
.stage444-row {
  display:grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items:center;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 16px;
  padding: 11px 12px;
  background: rgba(255,255,255,.045);
}
.stage444-row small { color: var(--stage444-muted); line-height: 1.35; }
.stage444-pass { color: var(--stage444-green); }
.stage444-warn { color: var(--stage444-gold); }
.stage444-block { color: var(--stage444-red); }
.stage444-info { color: var(--stage444-blue); }
.stage444-terminal-dock,
.stage444-operator-dock { margin: 18px 0; }
.stage444-terminal-dock .stage444-platform-core,
.stage444-operator-dock .stage444-platform-core { width: 100%; margin: 0; }
.stage444-terminal .stage444-title,
.stage444-operator .stage444-title { font-size: clamp(22px, 3vw, 34px); }
@media (max-width: 920px) {
  .stage444-header { flex-direction: column; }
  .stage444-status { text-align:left; width:100%; }
  .stage444-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stage444-panels { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .stage444-platform-core { width: min(100% - 16px, 1200px); border-radius: 22px; padding: 16px; }
  .stage444-grid { grid-template-columns: 1fr; }
  .stage444-actions { display:grid; grid-template-columns: 1fr; }
  .stage444-row { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .stage444-btn { transition: none; }
  .stage444-btn:hover,
  .stage444-btn:focus-visible { transform: none; }
}