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

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

.reynolds-app {
  display: grid;
  gap: 20px;
  min-width: 0;
}

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

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

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

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

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

.reynolds-engine {
  min-width: 188px;
  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;
}

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

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

.reynolds-panel {
  padding: 20px;
}

.reynolds-form {
  display: grid;
  gap: 18px;
}

.reynolds-form__group {
  display: grid;
  gap: 14px;
}

.reynolds-form__group h3 {
  margin: 0;
  color: var(--ink);
  font-size: 0.98rem;
}

.reynolds-field {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.reynolds-field label {
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 800;
}

.reynolds-field input,
.reynolds-field select {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--color-surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  outline: none;
}

.reynolds-field select {
  cursor: pointer;
}

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

.reynolds-input-row {
  display: grid;
  grid-template-columns: minmax(200px, 1.35fr) minmax(130px, 0.7fr) minmax(140px, 0.75fr);
  gap: 14px;
}

.reynolds-two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.reynolds-dimensions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

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

.reynolds-actions--compact {
  justify-content: flex-end;
}

.reynolds-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 15px;
  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;
}

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

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

.reynolds-button--danger {
  color: #9b2727;
}

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

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

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

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

.reynolds-visual {
  display: grid;
  gap: 16px;
}

.reynolds-svg-card {
  min-height: 320px;
  display: grid;
  place-items: center;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(232, 241, 250, 0.82), rgba(255, 255, 255, 0.96));
}

.reynolds-svg-card img {
  display: block;
  width: 100%;
  max-width: 520px;
  height: 280px;
  object-fit: contain;
}

.reynolds-svg-stroke {
  fill: rgba(255, 255, 255, 0.88);
  stroke: var(--color-primary);
  stroke-width: 6;
}

.reynolds-svg-flow {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 10 9;
}

.reynolds-svg-dim {
  fill: none;
  stroke: #475569;
  stroke-width: 2.3;
  marker-start: url(#reynolds-arrow);
  marker-end: url(#reynolds-arrow);
}

.reynolds-svg-ext {
  fill: none;
  stroke: #64748b;
  stroke-width: 1.7;
  stroke-dasharray: 5 5;
}

.reynolds-svg-label {
  fill: #172033;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 18px;
  font-weight: 800;
}

.reynolds-formula {
  margin: 0;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--color-primary-softer);
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
}

.reynolds-section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.reynolds-section-head p {
  margin: 5px 0 0;
  font-size: 0.9rem;
}

.reynolds-section-head--actions {
  align-items: center;
}

.reynolds-result-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.reynolds-result-card {
  min-height: 98px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--gradient-surface);
}

.reynolds-result-card--wide {
  grid-column: 1 / -1;
}

.reynolds-result-card__label {
  display: block;
  margin-bottom: 8px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1.25;
}

.reynolds-result-card__value {
  min-height: 34px;
  color: var(--ink);
  font-size: 1.22rem;
  font-weight: 800;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.reynolds-result-card__hint {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.reynolds-table-wrap {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
}

.reynolds-table {
  width: 100%;
  min-width: 1180px;
  border-collapse: collapse;
  background: var(--color-surface);
}

.reynolds-table th,
.reynolds-table td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--ink);
  font-size: 0.86rem;
  text-align: left;
  white-space: nowrap;
}

.reynolds-table th {
  background: var(--color-primary-800);
  color: var(--color-on-primary);
  font-weight: 800;
}

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

.reynolds-table tbody tr:last-child td {
  border-bottom: 0;
}

.reynolds-table__empty {
  color: var(--muted) !important;
  text-align: center !important;
}

@media (max-width: 1120px) {
  .reynolds-result-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .reynolds-input-row,
  .reynolds-two-col,
  .reynolds-dimensions,
  .reynolds-result-grid {
    grid-template-columns: 1fr;
  }
}

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

  .reynolds-app__bar,
  .reynolds-section-head,
  .reynolds-section-head--actions {
    display: grid;
  }

  .reynolds-engine,
  .reynolds-actions,
  .reynolds-actions--compact,
  .reynolds-button {
    width: 100%;
  }
}