.tools-page-shell {
  padding-bottom: 48px;
}

.tools-hero {
  padding: 64px 0 28px;
}

.matrix-tool {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.tools-page-shell .page-main,
.tools-page-shell .page-content,
.matrix-panel {
  min-width: 0;
}

.matrix-tool__bar,
.matrix-panel {
  background: var(--color-surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
}

.matrix-tool__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
}

.matrix-tool__bar h2,
.matrix-section-head h3 {
  margin: 0;
  font-size: 1.1rem;
}

.matrix-tool__eyebrow {
  margin: 0 0 6px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.matrix-tool__badge {
  min-width: 170px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--color-primary-softer);
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 800;
  text-align: center;
}

.matrix-tool__badge.is-ready {
  background: rgba(22, 140, 82, 0.1);
  color: #12623c;
}

.matrix-tool__badge.is-error {
  background: rgba(188, 55, 55, 0.1);
  color: #9b2727;
}

.matrix-panel {
  display: grid;
  gap: 16px;
  padding: 18px;
  scroll-margin-top: 118px;
  overflow: hidden;
}

.matrix-form {
  display: grid;
  gap: 16px;
}

.matrix-section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.matrix-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 10px;
  align-items: end;
}

.matrix-controls--basic {
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
}

.matrix-field {
  display: grid;
  gap: 7px;
  min-width: 0;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 800;
}

.matrix-field input,
.matrix-field select {
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--color-surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  outline: none;
}

.matrix-field select {
  cursor: pointer;
}

.matrix-field input:focus,
.matrix-field select:focus,
.matrix-cell:focus {
  border-color: var(--color-primary-hover);
  box-shadow: 0 0 0 4px var(--color-state-focus-ring);
}

.matrix-field.is-hidden,
.matrix-input-card.is-hidden {
  display: none;
}

.matrix-input-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 14px;
  align-items: start;
  min-width: 0;
}

.matrix-input-layout--single {
  grid-template-columns: minmax(0, 1fr);
}

.matrix-input-card,
.matrix-result-card {
  min-width: 0;
  max-width: 100%;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--gradient-surface);
  overflow: hidden;
}

.matrix-input-card h4,
.matrix-result-card h4 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 0.96rem;
}

.matrix-grid-wrap,
.matrix-table-wrap {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: auto;
  padding-bottom: 2px;
}

.matrix-input-grid {
  --matrix-cols: 2;
  display: grid;
  grid-template-columns: repeat(var(--matrix-cols), minmax(52px, 64px));
  gap: 5px;
  width: max-content;
  max-width: none;
  min-width: calc(var(--matrix-cols) * 52px + (var(--matrix-cols) - 1) * 5px);
}

.matrix-cell {
  width: 64px;
  max-width: 64px;
  min-height: 34px;
  padding: 5px 6px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.84rem;
  outline: none;
  text-align: center;
}

.matrix-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.matrix-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 13px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--color-surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s ease;
}

.matrix-button:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: var(--color-state-focus-outline);
  box-shadow: var(--shadow-soft);
}

.matrix-button--primary {
  border-color: transparent;
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.matrix-button:disabled {
  background: var(--color-state-disabled-bg);
  color: var(--color-state-disabled-text);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.matrix-message {
  min-height: 22px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.matrix-message.is-error {
  color: #9b2727;
}

.matrix-message.is-success {
  color: #12623c;
}

.matrix-result-panel {
  display: grid;
  gap: 14px;
}

.matrix-result-panel:empty {
  display: none;
}

.matrix-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.matrix-scalar-card {
  min-height: 108px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--gradient-surface);
}

.matrix-scalar-card__label {
  display: block;
  margin-bottom: 8px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
}

.matrix-scalar-card__value {
  color: var(--ink);
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.matrix-table {
  width: 100%;
  min-width: 280px;
  border-collapse: collapse;
  background: var(--color-surface);
}

.matrix-table td,
.matrix-table th {
  padding: 8px 10px;
  border: 1px solid var(--border);
  color: var(--ink);
  font-size: 0.84rem;
  text-align: right;
  white-space: nowrap;
}

.matrix-table th {
  background: var(--color-primary-800);
  color: var(--color-on-primary);
  font-weight: 800;
  text-align: left;
}

.matrix-table tbody tr:nth-child(even) td {
  background: var(--color-primary-softer);
}

.matrix-eigen-table {
  min-width: 760px;
}

.matrix-eigen-table td:last-child {
  text-align: left;
  white-space: normal;
}

.matrix-vector-list {
  display: grid;
  gap: 8px;
}

.matrix-vector-list code {
  display: block;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(var(--color-neutral-white-rgb), 0.78);
  color: var(--ink);
  font-size: 0.82rem;
  white-space: normal;
  overflow-wrap: anywhere;
}

.matrix-empty {
  padding: 14px;
  border: 1px dashed var(--border);
  border-radius: 14px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

@media (max-width: 960px) {
  .matrix-result-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .tools-hero {
    padding-top: 42px;
  }

  .matrix-tool__bar,
  .matrix-section-head {
    display: grid;
    grid-template-columns: 1fr;
  }

  .matrix-tool__badge,
  .matrix-actions,
  .matrix-button {
    width: 100%;
  }

  .matrix-controls,
  .matrix-controls--basic {
    grid-template-columns: 1fr;
  }

  .matrix-panel {
    scroll-margin-top: 84px;
  }
}