/* NABLA — linalg.css  (depends on workspace.css only) */

.ws-body { grid-template-columns: 37.5fr 25fr 37.5fr; }

/* ── Matrix input block ── */
.mat-input-block { display: flex; flex-direction: column; gap: 0.4rem; }

.mat-input-header { display: flex; align-items: center; justify-content: space-between; }

.mat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--orange-bright);
}

.mat-input-actions { display: flex; align-items: center; gap: 0.3rem; }

.upload-btn {
  width: 26px; height: 26px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}
.upload-btn:hover { color: var(--orange-bright); border-color: var(--border-hover); }
.upload-btn svg { width: 13px; height: 13px; }

.mat-preset-btn {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  padding: 0.18rem 0.42rem;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}
.mat-preset-btn:hover { border-color: var(--orange); color: var(--orange-bright); }

/* ── Console textarea ── */
.mat-console {
  background: var(--void);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  padding: 0.7rem 0.85rem;
  resize: vertical;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
  min-height: 88px;
}
.mat-console:focus { border-color: var(--orange); box-shadow: 0 0 0 2px var(--orange-dim); }
.mat-console::placeholder { color: var(--text-muted); font-size: 0.74rem; line-height: 1.7; }
.mat-console--sm { min-height: 54px; }

/* ── Parse status ── */
.mat-parse-status {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  min-height: 16px;
  transition: all 0.2s;
}
.mat-parse-status.ok  { color: #4ADE80; }
.mat-parse-status.err { color: #F87171; }

/* ── Matrix B separator ── */
.mat-sep { display: flex; align-items: center; gap: 0.65rem; }
.mat-sep-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.mat-sep-toggle {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--orange);
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 0.12rem 0.5rem;
  cursor: pointer;
  transition: all 0.15s;
}
.mat-sep-toggle:hover { border-color: var(--orange); background: rgba(255,106,26,0.06); }

/* ── Scalar input ── */
.mat-scalar-input {
  background: var(--void);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  padding: 0.52rem 0.85rem;
  outline: none;
  width: 100%;
  transition: border-color 0.15s;
}
.mat-scalar-input:focus { border-color: var(--orange); }

/* ── Syntax hint ── */
.mat-syntax-card {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.7rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.mat-syntax-title {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.mat-syntax-examples { display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; }
.mat-syntax-examples span { font-size: 0.73rem; color: var(--text-secondary); }
.mat-syntax-examples code {
  font-family: var(--font-mono);
  color: var(--text-code);
  background: rgba(255,180,84,0.08);
  padding: 0.04em 0.28em;
  border-radius: 3px;
  font-size: 0.71rem;
}

/* ── Result output ── */
.result-block { display: flex; flex-direction: column; gap: 0.7rem; }

.result-section-title {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--orange-bright);
  display: flex;
  align-items: center;
  gap: 0.38rem;
}
.result-section-title::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--orange-bright);
  box-shadow: 0 0 5px var(--orange-bright);
}

.scalar-result {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  word-break: break-all;
}

.matrix-display-wrap {
  background: var(--void);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.7rem 0.9rem;
  overflow-x: auto;
}
.matrix-display {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-primary);
  line-height: 1.7;
  white-space: pre;
  margin: 0;
}

.vector-result { display: flex; flex-direction: column; gap: 0.28rem; }
.vector-row { display: flex; gap: 0.7rem; font-family: var(--font-mono); font-size: 0.8rem; align-items: center; }
.vector-idx { color: var(--text-muted); min-width: 34px; }
.vector-val { color: var(--orange-bright); font-weight: 600; }

.heatmap-wrap { display: flex; flex-direction: column; gap: 0.45rem; }
.heatmap-canvas {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  display: block;
}

@media (max-width: 1100px) { .ws-body { grid-template-columns: 1fr; } }