.trisolver-layout {
  display: grid;
  gap: 24px;
}

@media (min-width: 1024px) {
  .trisolver-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    align-items: start;
  }
}

.trisolver-main {
  display: grid;
  gap: 24px;
}

.trisolver-mode-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.trisolver-mode-group label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--border, #d0d7de);
  border-radius: 999px;
  background: var(--surface-default, #ffffff);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.trisolver-mode-group input[type='radio'] {
  margin: 0;
}

.trisolver-mode-group label.is-active {
  background: var(--accent-50, #e7f5ff);
  border-color: var(--accent-300, #74c0fc);
  color: var(--accent-900, #0b7285);
}

.trisolver-controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
}

.trisolver-controls-row label {
  display: grid;
  gap: 6px;
}

.trisolver-fields {
  display: grid;
  gap: 16px;
}

@media (min-width: 640px) {
  .trisolver-fields {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
}

.trisolver-field label {
  display: grid;
  gap: 6px;
}

.trisolver-field input[type='number'],
.trisolver-field input[type='text'] {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border, #d0d7de);
  font-size: 1rem;
  min-height: 44px;
}

.trisolver-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.trisolver-actions .button {
  min-width: 148px;
  justify-content: center;
}

.trisolver-solution-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.trisolver-solution-switch .chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border, #d0d7de);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.trisolver-solution-switch .chip input {
  margin: 0;
}

.trisolver-solution-switch .chip.is-active {
  background: var(--accent-50, #e7f5ff);
  border-color: var(--accent-300, #74c0fc);
  color: var(--accent-900, #0b7285);
}

.trisolver-summary {
  display: grid;
  gap: 20px;
}

.trisolver-table {
  width: 100%;
  border-collapse: collapse;
  text-align: right;
}

.trisolver-table caption {
  text-align: left;
  font-weight: 600;
  margin-bottom: 6px;
}

.trisolver-table th,
.trisolver-table td {
  border: 1px solid var(--border, #d0d7de);
  padding: 8px 12px;
}

.trisolver-table th:first-child,
.trisolver-table td:first-child {
  text-align: left;
}

.trisolver-metrics {
  display: grid;
  gap: 10px;
  margin: 0;
}

.trisolver-metrics div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.trisolver-metrics dt {
  font-weight: 600;
}

.trisolver-metrics dd {
  margin: 0;
  font-family: var(--font-mono, ui-monospace, SFMono-Regular, SFMono, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace);
}

.trisolver-diagram {
  margin-top: 16px;
}

.trisolver-diagram canvas {
  width: 100%;
  max-width: 720px;
  height: auto;
  border: 1px solid var(--border, #d0d7de);
  border-radius: 12px;
  background: var(--surface-muted, #f8fafc);
}

.trisolver-side {
  display: grid;
  gap: 24px;
}

.trisolver-side .card {
  position: sticky;
  top: 20px;
}

@media (max-width: 1023px) {
  .trisolver-side .card {
    position: static;
  }
}

.trisolver-error {
  color: var(--danger-700, #b02a37);
  margin-top: 12px;
  font-weight: 600;
}