/* Phase 4: shared quality rails for flagship tools */
:root {
  --nt-qr-bg: rgba(3, 8, 4, 0.92);
  --nt-qr-surface: rgba(9, 17, 10, 0.96);
  --nt-qr-line: rgba(70, 224, 122, 0.22);
  --nt-qr-line-strong: rgba(70, 224, 122, 0.42);
  --nt-qr-text: #e4eee1;
  --nt-qr-muted: #8d9b89;
  --nt-qr-dim: #b6c2b2;
  --nt-qr-green: #46e07a;
  --nt-qr-cyan: #63e6ff;
  --nt-qr-amber: #ffbd5b;
  --nt-qr-red: #ff6572;
}

.nt-quality-rail {
  width: min(100% - 32px, 1360px);
  margin: -4px auto 16px;
  border: 1px solid var(--nt-qr-line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(70, 224, 122, 0.05), transparent 38%, rgba(99, 230, 255, 0.035)),
    linear-gradient(180deg, rgba(11, 18, 11, 0.96), rgba(3, 8, 4, 0.97));
  box-shadow: 0 14px 38px rgba(0, 0, 0, 0.2), inset 0 0 22px rgba(70, 224, 122, 0.035);
  color: var(--nt-qr-text);
  overflow: hidden;
}

.nt-quality-rail * {
  box-sizing: border-box;
}

.nt-quality-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
}

.nt-quality-main {
  min-width: 0;
}

.nt-quality-label {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--nt-qr-muted);
  font-size: 10.5px;
  line-height: 1.4;
  text-transform: uppercase;
}

.nt-quality-label strong {
  color: var(--nt-qr-green);
  letter-spacing: 0.06em;
}

.nt-quality-copy {
  margin-top: 5px;
  color: var(--nt-qr-dim);
  font-size: 12.5px;
  line-height: 1.45;
}

.nt-quality-copy b {
  color: var(--nt-qr-text);
}

.nt-quality-pills,
.nt-quality-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
}

.nt-quality-pill {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid rgba(70, 224, 122, 0.22);
  border-radius: 999px;
  background: rgba(2, 7, 4, 0.78);
  color: var(--nt-qr-dim);
  padding: 0 9px;
  font-size: 10.5px;
  font-weight: 800;
  text-transform: uppercase;
  white-space: nowrap;
}

.nt-quality-dot {
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: var(--nt-qr-green);
  box-shadow: 0 0 14px rgba(70, 224, 122, 0.55);
}

.nt-quality-pill[data-tone="delayed"] .nt-quality-dot,
.nt-quality-pill[data-tone="backup"] .nt-quality-dot,
.nt-quality-pill[data-tone="context"] .nt-quality-dot {
  background: var(--nt-qr-amber);
  box-shadow: 0 0 14px rgba(255, 189, 91, 0.5);
}

.nt-quality-pill[data-tone="local"] .nt-quality-dot {
  background: var(--nt-qr-cyan);
  box-shadow: 0 0 14px rgba(99, 230, 255, 0.5);
}

.nt-quality-pill[data-tone="unavailable"] .nt-quality-dot {
  background: var(--nt-qr-red);
  box-shadow: 0 0 14px rgba(255, 101, 114, 0.5);
}

.nt-quality-action {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(70, 224, 122, 0.28);
  border-radius: 6px;
  background: rgba(2, 7, 4, 0.66);
  color: var(--nt-qr-text);
  padding: 0 10px;
  font-size: 11px;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
}

.nt-quality-action:hover,
.nt-quality-action:focus-visible {
  border-color: var(--nt-qr-green);
  color: var(--nt-qr-green);
  outline: none;
}

.nt-quality-loader {
  position: fixed;
  left: 50%;
  bottom: 18px;
  z-index: 10001;
  width: min(460px, calc(100vw - 32px));
  transform: translate(-50%, 14px);
  opacity: 0;
  pointer-events: none;
  border: 1px solid rgba(70, 224, 122, 0.32);
  border-radius: 8px;
  background: rgba(2, 7, 4, 0.94);
  box-shadow: 0 20px 52px rgba(0, 0, 0, 0.34), 0 0 30px rgba(70, 224, 122, 0.14);
  color: var(--nt-qr-text);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.nt-quality-loader.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.nt-quality-loader-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
}

.nt-quality-spinner {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(70, 224, 122, 0.16);
  border-top-color: var(--nt-qr-green);
  box-shadow: 0 0 16px rgba(70, 224, 122, 0.35);
  animation: ntQualitySpin 0.75s linear infinite;
}

.nt-quality-loader.is-done .nt-quality-spinner {
  animation: none;
  border-color: var(--nt-qr-green);
  background: var(--nt-qr-green);
}

.nt-quality-loader.is-warn .nt-quality-spinner {
  border-top-color: var(--nt-qr-amber);
  box-shadow: 0 0 16px rgba(255, 189, 91, 0.3);
}

.nt-quality-loader b {
  display: block;
  color: var(--nt-qr-text);
  font-size: 12px;
}

.nt-quality-loader span {
  display: block;
  color: var(--nt-qr-muted);
  font-size: 11px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nt-quality-fetch-count {
  color: var(--nt-qr-green);
  font-size: 11px;
  font-weight: 900;
  white-space: nowrap;
}

.nt-quality-source-clean {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 0 8px;
  border: 1px solid rgba(70, 224, 122, 0.22);
  background: rgba(2, 7, 4, 0.55);
  color: var(--nt-qr-green);
  font-weight: 800;
}

.nt-quality-source-clean[data-tone="delayed"],
.nt-quality-source-clean[data-tone="backup"],
.nt-quality-source-clean[data-tone="context"] {
  border-color: rgba(255, 189, 91, 0.32);
  color: var(--nt-qr-amber);
}

.nt-quality-source-clean[data-tone="local"] {
  border-color: rgba(99, 230, 255, 0.32);
  color: var(--nt-qr-cyan);
}

.nt-quality-source-clean[data-tone="unavailable"] {
  border-color: rgba(255, 101, 114, 0.34);
  color: var(--nt-qr-red);
}

.nt-quality-empty {
  min-height: 116px;
  display: grid;
  place-items: center;
  border: 1px dashed rgba(70, 224, 122, 0.22);
  border-radius: 8px;
  background: rgba(4, 10, 5, 0.42);
  color: var(--nt-qr-muted);
  text-align: center;
  padding: 16px;
}

.nt-quality-empty b {
  color: var(--nt-qr-text);
}

.nt-quality-busy [data-quality-watch],
.nt-quality-busy .module,
.nt-quality-busy .card {
  transition: opacity 0.18s ease, filter 0.18s ease;
}

.nt-quality-busy:not(.nt-quality-soft-busy) [data-quality-watch] {
  opacity: 0.78;
}

@keyframes ntQualitySpin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .nt-quality-spinner {
    animation: none;
  }

  .nt-quality-loader,
  .nt-quality-busy [data-quality-watch],
  .nt-quality-busy .module,
  .nt-quality-busy .card {
    transition: none;
  }
}

@media (max-width: 940px) {
  .nt-quality-grid {
    grid-template-columns: 1fr;
  }

  .nt-quality-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 620px) {
  .nt-quality-rail {
    width: min(100% - 24px, 1360px);
    margin-top: -2px;
  }

  .nt-quality-grid {
    padding: 11px;
  }

  .nt-quality-pills {
    gap: 5px;
  }

  .nt-quality-pill {
    min-height: 28px;
    font-size: 10px;
    padding: 0 7px;
  }

  .nt-quality-loader {
    bottom: 12px;
  }
}