.bpa-shell {
  --bpa-ink: #32151c;
  --bpa-muted: #78525a;
  --bpa-line: rgba(94, 28, 43, 0.16);
  --bpa-panel: #fff6f1;
  --bpa-panel-strong: #fff;
  --bpa-red: #b3203f;
  --bpa-red-soft: rgba(179, 32, 63, 0.1);
  --bpa-gold: #d89d2b;
  --bpa-teal: #18b79d;

  display: grid;
  gap: 1rem;
  width: 100%;
  color: var(--bpa-ink);
}

.theme-dark .bpa-shell {
  --bpa-ink: #f4f7fb;
  --bpa-muted: #a8b1bf;
  --bpa-line: rgba(226, 232, 240, 0.14);
  --bpa-panel: #111418;
  --bpa-panel-strong: #171b21;
  --bpa-red-soft: rgba(255, 74, 112, 0.16);
}

.theme-dark .bpa-card {
  background:
    linear-gradient(135deg, rgba(255,255,255,.035), transparent 34%),
    var(--bpa-panel);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

.bpa-card {
  display: grid;
  gap: 0.85rem;
  width: 100%;
  padding: clamp(0.75rem, 1.8vw, 1rem);
  border: 1px solid var(--bpa-line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.64), transparent 32%),
    var(--bpa-panel);
  box-shadow: 0 24px 70px rgba(65, 16, 28, 0.12);
}

.bpa-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 0.85rem;
}

.bpa-surface-panel,
.bpa-view-panel,
.bpa-table-wrap {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--bpa-line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--bpa-panel-strong) 70%, transparent);
}

.bpa-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.15rem 0.1rem;
}

.bpa-segment,
.bpa-actions {
  display: flex;
  gap: 0.45rem;
}

.bpa-active-strip {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  margin-inline: auto;
  padding: 0 0.85rem;
  border: 1px solid var(--bpa-line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bpa-panel-strong) 82%, transparent);
  color: var(--bpa-muted);
  font-size: 0.88rem;
}

.bpa-active-strip span {
  width: 0.72rem;
  height: 0.72rem;
  margin-right: 0.45rem;
  border-radius: 999px;
  box-shadow: 0 0 0 4px var(--bpa-red-soft);
}

.bpa-active-strip strong {
  color: var(--bpa-ink);
}

.bpa-shell button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 2.25rem;
  border: 1px solid var(--bpa-line);
  border-radius: 7px;
  background: var(--bpa-panel-strong);
  color: var(--bpa-ink);
  font-size: inherit;
  font-weight: 750;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.bpa-shell button svg {
  width: 1rem;
  height: 1rem;
}

.bpa-shell button:hover,
.bpa-segment button.is-active {
  border-color: rgba(179, 32, 63, 0.48);
  background: var(--bpa-red);
  color: white;
}

.bpa-shell button:hover {
  transform: translateY(-1px);
}

.bpa-actions button,
.bpa-segment button {
  padding: 0 0.8rem;
}

.bpa-surface-wrap {
  padding: 0.65rem;
}

.bpa-surface-wrap canvas {
  display: block;
  width: 100%;
  aspect-ratio: 1.55;
  border-radius: 8px;
  border: 1px solid var(--bpa-line);
  cursor: crosshair;
  touch-action: none;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.45);
}

.bpa-surface-wrap canvas.can-grab {
  cursor: grab;
}

.bpa-surface-wrap canvas.is-dragging {
  cursor: grabbing;
}

.bpa-view-panel {
  display: grid;
  grid-template-rows: minmax(240px, 1fr) auto;
  overflow: hidden;
}

.bpa-view-panel p {
  margin: 0;
  padding: 0.65rem 0.8rem;
  border-top: 1px solid var(--bpa-line);
  background: color-mix(in srgb, var(--bpa-panel-strong) 74%, transparent);
  color: var(--bpa-muted);
  font-size: 0.92rem;
}

.bpa-three {
  min-height: 260px;
  background:
    radial-gradient(circle at 50% 35%, rgba(245, 198, 94, 0.12), transparent 34%),
    radial-gradient(circle at 72% 25%, rgba(24, 183, 157, 0.08), transparent 30%),
    linear-gradient(145deg, #171b21, #06080b);
}

.bpa-three canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.bpa-dashboard {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--bpa-line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, var(--bpa-red-soft), transparent 42%),
    color-mix(in srgb, var(--bpa-panel-strong) 66%, transparent);
}

.bpa-focus-panel {
  display: grid;
  grid-template-columns: minmax(110px, 0.7fr) repeat(3, minmax(150px, 1fr));
  gap: 0.85rem;
  align-items: center;
  padding: 0.72rem 0.82rem;
  border: 1px solid var(--bpa-line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--bpa-red) 9%, transparent), transparent 55%),
    color-mix(in srgb, var(--bpa-panel-strong) 76%, transparent);
}

.bpa-focus-title {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
  font-size: 0.95rem;
}

.bpa-focus-title span {
  width: 0.8rem;
  height: 0.8rem;
  flex: 0 0 auto;
  border-radius: 999px;
  box-shadow: 0 0 0 5px var(--bpa-red-soft);
}

.bpa-focus-title strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bpa-focus-panel label {
  display: grid;
  grid-template-columns: auto minmax(72px, 1fr) minmax(54px, auto);
  gap: 0.55rem;
  align-items: center;
  min-width: 0;
  color: var(--bpa-muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.bpa-focus-panel input[type="range"] {
  width: 100%;
  accent-color: var(--bpa-red);
}

.bpa-focus-panel output {
  color: var(--bpa-ink);
  font-size: 0.86rem;
  font-weight: 850;
  text-align: right;
  text-transform: none;
}

.bpa-readout {
  display: grid;
  gap: 0.35rem;
  padding: 0.85rem;
  border-right: 1px solid var(--bpa-line);
  position: relative;
}

.bpa-readout::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: transparent;
}

.bpa-readout:first-child::before {
  background: var(--bpa-teal);
}

.bpa-readout:nth-child(2)::before {
  background: var(--bpa-gold);
}

.bpa-readout:nth-child(3)::before {
  background: var(--bpa-red);
}

.bpa-readout:nth-child(4)::before {
  background: #6b7cff;
}

.bpa-readout:last-child {
  border-right: 0;
}

.bpa-readout span {
  color: var(--bpa-muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.bpa-readout strong {
  font-size: clamp(1rem, 2vw, 1.35rem);
  line-height: 1.15;
}

#bpa-confidence[data-confidence="high"] {
  color: var(--bpa-teal);
}

#bpa-confidence[data-confidence="medium"] {
  color: var(--bpa-gold);
}

#bpa-confidence[data-confidence="low"] {
  color: var(--bpa-red);
}

.bpa-table-wrap {
  overflow-x: auto;
}

.bpa-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.bpa-table caption {
  padding: 0.75rem 0.85rem;
  text-align: left;
  font-weight: 850;
}

.bpa-table th,
.bpa-table td {
  padding: 0.48rem;
  border-top: 1px solid var(--bpa-line);
}

.bpa-table th {
  color: var(--bpa-muted);
  font-size: 0.82rem;
  text-align: left;
}

.bpa-table input {
  width: 100%;
  min-height: 2.25rem;
  border: 1px solid var(--bpa-line);
  border-radius: 7px;
  background: var(--bpa-panel-strong);
  color: var(--bpa-ink);
  font-size: inherit;
  font-weight: 700;
  padding: 0 0.55rem;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.bpa-table input:focus {
  border-color: rgba(179, 32, 63, 0.55);
  box-shadow: 0 0 0 3px var(--bpa-red-soft);
  outline: none;
}

.bpa-table tr.is-selected {
  background: var(--bpa-red-soft);
}

.bpa-table tr.is-selected input {
  border-color: rgba(179, 32, 63, 0.32);
}

.bpa-table td:last-child {
  width: 3.2rem;
  text-align: right;
}

.bpa-table td:last-child .bpa-icon-button {
  display: inline-grid;
  place-items: center;
  width: 2.35rem;
  padding: 0;
}

.bpa-icon-button svg {
  width: 1.1rem;
  height: 1.1rem;
  pointer-events: none;
}

.bpa-disclaimer {
  margin: 0;
  padding: 0.85rem 1rem;
  border-left: 4px solid var(--bpa-gold);
  border-radius: 8px;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--bpa-gold) 18%, transparent), transparent),
    color-mix(in srgb, var(--bpa-panel-strong) 72%, transparent);
  color: var(--bpa-muted);
  font-weight: 700;
}

@media (max-width: 860px) {
  .bpa-stage,
  .bpa-dashboard,
  .bpa-focus-panel {
    grid-template-columns: 1fr;
  }

  .bpa-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .bpa-active-strip {
    width: 100%;
    justify-content: center;
  }

  .bpa-readout {
    border-right: 0;
    border-bottom: 1px solid var(--bpa-line);
  }

  .bpa-readout:last-child {
    border-bottom: 0;
  }

  .bpa-segment button,
  .bpa-actions button {
    flex: 1;
  }
}