/* === Tool Pages Shared Styles === */

.breadcrumb {
  padding: 16px 0 0;
  font-size: 0.8rem;
  color: var(--text-dim);
}
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { margin: 0 6px; }

.tool-hero { padding: 40px 0 32px; }
.tool-hero h1 { font-size: 2rem; }

/* Tool container */
#tool-container {
  min-height: 200px;
}

/* Related tools grid */
.related-tools { padding: 40px 0 0; }
.related-tools h2 { font-size: 1.3rem; margin-bottom: 20px; text-align: center; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
}
.related-card {
  display: block;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s;
  text-decoration: none;
}
.related-card:hover { border-color: var(--accent); background: var(--bg-hover); text-decoration: none; }
.related-card h3 { font-size: 0.9rem; color: var(--text); margin-bottom: 4px; }
.related-card p { font-size: 0.78rem; color: var(--text-dim); margin: 0; }

/* Tool-specific: Shape Calculator */
.shape-calc-container .input-group { margin-bottom: 16px; }
.shape-calc-container select { margin-bottom: 12px; }

.layer-select-wrap {
  margin-bottom: 16px;
}
.layer-select-wrap label { margin-bottom: 6px; }
.layer-select-wrap select {
  max-width: 300px;
}

.params-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.params-grid .input-field label {
  font-size: 0.75rem;
  margin-bottom: 4px;
}

/* Chain mode in tool pages */
.chain-output {
  margin-top: 16px;
}
.chain-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 6px;
  font-size: 0.85rem;
}
.chain-step .step-num {
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--text-dim);
  min-width: 20px;
}
.chain-step .step-layer {
  color: var(--text);
  font-weight: 500;
  min-width: 120px;
}
.chain-step .step-shape {
  font-family: var(--font-display);
  color: var(--accent);
  margin-left: auto;
}
.chain-step.error { border-color: var(--red); }
.chain-step.error .step-shape { color: var(--red); }

/* Error Debugger */
.error-input-wrap { margin-bottom: 16px; }
.error-input-wrap textarea {
  font-family: var(--font-display);
  font-size: 0.85rem;
  min-height: 120px;
}
.error-result { margin-top: 16px; }
.error-result .error-type {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--orange);
  margin-bottom: 8px;
  font-weight: 700;
}
.error-result .error-explain {
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.7;
}
.error-result .error-cause {
  color: var(--text-dim);
  margin-bottom: 12px;
  font-size: 0.9rem;
  line-height: 1.6;
}
.error-result .error-fix {
  color: var(--green);
  font-size: 0.9rem;
  line-height: 1.7;
  padding: 12px;
  background: rgba(34, 197, 94, 0.06);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: 6px;
}
.error-result .error-fix strong { color: var(--green); }

/* Reference tables */
.ref-table-wrap { overflow-x: auto; margin-bottom: 24px; }
.ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.ref-table th, .ref-table td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  text-align: left;
}
.ref-table th {
  background: var(--bg-card);
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--text-dim);
  font-weight: 600;
}
.ref-table td { color: var(--text); }
.ref-table tr:hover td { background: var(--bg-hover); }
.ref-table code {
  font-family: var(--font-display);
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.8em;
}

/* Canvas plots */
.plot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.plot-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.plot-card h3 {
  font-size: 0.9rem;
  margin-bottom: 8px;
}
.plot-card canvas {
  width: 100%;
  height: 160px;
  border-radius: 4px;
}
.plot-card .plot-formula {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 8px;
}
.plot-card .plot-info {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 6px;
  line-height: 1.5;
}

/* Model tool */
.model-layers-list { margin-bottom: 16px; }
.model-layer-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.model-layer-row select { max-width: 160px; }
.model-layer-row input { max-width: 100px; }
.model-layer-row .layer-params {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--accent);
  margin-left: auto;
}

.model-summary {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.model-summary h3 { margin-bottom: 12px; }
.model-summary .summary-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.model-summary .summary-row:last-child { border-bottom: none; }
.model-summary .summary-row .val {
  font-family: var(--font-display);
  color: var(--accent);
  font-weight: 700;
}
.model-summary .summary-total {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 2px solid var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
}
.model-summary .summary-total .val { color: var(--accent); }

/* Einsum */
.einsum-input-wrap {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.einsum-input-wrap .input-field { flex: 1; min-width: 200px; }
.einsum-result {
  padding: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}

/* Tools hub */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  margin-bottom: 40px;
}
.tool-card {
  display: block;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s;
  text-decoration: none;
}
.tool-card:hover { border-color: var(--accent); background: var(--bg-hover); text-decoration: none; }
.tool-card h3 { font-size: 0.95rem; color: var(--text); margin-bottom: 6px; }
.tool-card p { font-size: 0.82rem; color: var(--text-dim); margin: 0; line-height: 1.5; }
.tool-card .tool-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-family: var(--font-display);
  color: var(--accent);
  background: rgba(59,130,246,0.1);
  padding: 2px 8px;
  border-radius: 4px;
  margin-top: 8px;
}

.tools-section-title {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 16px;
  margin-top: 32px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}