:root {
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    sans-serif;

  color: #1b1b1b;
  background: #f3f3f3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

header {
  background: #24102b;
  color: white;

  padding:
    24px
    max(
      24px,
      calc((100vw - 1180px) / 2)
    );
}

h1 {
  margin: 0 0 4px;
  font-size: 28px;
}

header p {
  margin: 0;
  opacity: .75;
}

.tabs {
  display: flex;
  gap: 2px;

  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 18px 0;

  border-bottom: 1px solid #d0d0d0;
}

.tab-button {
  border: 0;
  border-bottom: 3px solid transparent;
  border-radius: 0;

  background: transparent;

  padding: 11px 18px 9px;

  font-weight: 700;
  color: #5b5b5b;
}

.tab-button:hover {
  color: #340041;
}

.tab-button.active {
  color: #340041;
  border-bottom-color: #340041;
}

main {
  max-width: 1180px;
  margin: 18px auto;
  padding: 0 18px 30px;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.panel {
  background: white;

  border: 1px solid #d8d8d8;
  border-radius: 8px;

  padding: 20px;
  margin-bottom: 18px;
}

h2 {
  margin: 0 0 18px;
  font-size: 20px;
}

label,
.field-heading {
  display: block;

  font-size: 13px;
  font-weight: 650;
}

input,
textarea,
select,
button {
  font: inherit;
}

input,
textarea,
select {
  display: block;
  width: 100%;

  margin-top: 6px;
  padding: 9px 10px;

  border: 1px solid #bdbdbd;
  border-radius: 5px;

  background: white;
}

textarea {
  resize: vertical;
  line-height: 1.45;
}

button {
  border: 1px solid #999;
  border-radius: 5px;

  background: #fafafa;

  padding: 9px 13px;

  cursor: pointer;
}

button.primary {
  background: #340041;
  border-color: #340041;
  color: white;
}

button.danger {
  color: #971934;
}

button:disabled {
  cursor: not-allowed;
  opacity: .5;
}

.section-details {
  border: 1px solid #d8d8d8;
  border-radius: 7px;

  margin-bottom: 14px;

  background: #fff;
}

.section-details > summary {
  cursor: pointer;
  list-style: none;
  user-select: none;

  padding: 14px 16px;

  font-size: 15px;
  font-weight: 750;
}

.section-details > summary::-webkit-details-marker {
  display: none;
}

.section-details > summary::before {
  content: "▸";

  display: inline-block;
  width: 18px;

  color: #6a6a6a;
}

.section-details[open] > summary::before {
  content: "▾";
}

.section-details[open] > summary {
  border-bottom: 1px solid #e0e0e0;
}

.details-body {
  padding: 16px;
}

.details-body > textarea {
  margin-top: 0;
}

.run-grid {
  display: grid;

  grid-template-columns:
    repeat(
      4,
      minmax(0, 1fr)
    );

  gap: 12px;
  align-items: end;
}

.two-column,
.editor-toolbar,
.step-builder {
  display: grid;
  gap: 12px;
  align-items: end;
}

.two-column {
  grid-template-columns: 1fr 1fr;
}

.editor-toolbar {
  grid-template-columns:
    180px
    1fr
    auto;
}

.step-builder {
  grid-template-columns:
    1fr
    auto;
}

.step-builder-block {
  margin-top: 18px;
}

.step-builder-block .step-builder {
  margin-top: 6px;
}

.selected-steps {
  min-height: 50px;

  margin-bottom: 0;
  padding: 8px 8px 8px 38px;

  border: 1px dashed #bbb;
  border-radius: 5px;
}

.selected-steps li {
  padding: 5px 2px;
}

.step-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.step-buttons {
  display: flex;
  gap: 5px;
}

.step-buttons button {
  padding: 3px 8px;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;

  margin-top: 18px;
}

.run-actions {
  margin-top: 4px;
}

.output-panel {
  padding: 20px;
}

.output {
  min-height: 280px;

  padding: 14px;

  border: 1px solid #d5d5d5;

  background: #fafafa;

  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.5;
}

.output.empty {
  color: #777;
}

.trace-step {
  border-top: 1px solid #ddd;

  margin-top: 14px;
  padding-top: 14px;
}

.trace-step:first-child {
  border-top: 0;
  margin-top: 0;
  padding-top: 0;
}

.trace-step pre {
  padding: 10px;

  background: #f5f5f5;

  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;

  margin-top: 14px;
}

.checkbox-label input {
  width: auto;
  margin: 0;
}

#editor-description,
#editor-content,
#editor-name,
#editor-id {
  margin-bottom: 14px;
}

#run-status,
#editor-status {
  font-size: 13px;
  color: #555;
}

.settings-panel {
  min-height: 240px;
}

@media (max-width: 900px) {
  .run-grid {
    grid-template-columns: 1fr 1fr;
  }

  .editor-toolbar {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .tabs {
    overflow-x: auto;
  }

  .run-grid,
  .two-column {
    grid-template-columns: 1fr;
  }

  .panel {
    padding: 14px;
  }
}

.xml-upload-row {
  display: grid;
  grid-template-columns:
    minmax(260px, 1fr)
    minmax(260px, 1fr);
  gap: 8px 18px;
  align-items: end;

  margin-bottom: 18px;
  padding: 14px;

  border: 1px solid #d8d8d8;
  border-radius: 6px;

  background: #fafafa;
}

.xml-upload-note {
  padding-bottom: 10px;

  font-size: 13px;
  color: #666;
}

.xml-upload-status {
  grid-column: 1 / -1;

  min-height: 18px;

  font-size: 13px;
  color: #555;
}

@media (max-width: 720px) {
  .xml-upload-row {
    grid-template-columns: 1fr;
  }

  .xml-upload-status {
    grid-column: auto;
  }
}