* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f6f7f9;
  color: #17202a;
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px;
}

.topbar,
.summary-grid,
.layout,
.output-panel {
  background: #fff;
  border: 1px solid #d9dee7;
  border-radius: 8px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 22px;
}

.eyebrow {
  margin: 0 0 4px;
  color: #596579;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.language-switch {
  display: flex;
  gap: 6px;
}

button,
.language-button {
  border: 1px solid #b8c1d1;
  border-radius: 6px;
  background: #fff;
  color: #17202a;
  cursor: pointer;
  font-weight: 650;
  padding: 9px 12px;
}

button:hover {
  background: #f1f4f8;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.language-button.active,
.status.ready,
#validation-state.ready {
  background: #e9f7ef;
  border-color: #9bd0ad;
  color: #17633a;
}

.status,
#validation-state {
  border-radius: 999px;
  border: 1px solid #c7ceda;
  padding: 7px 10px;
  font-weight: 700;
}

#validation-state.blocked {
  background: #fff1f0;
  border-color: #ffb3ad;
  color: #a5261d;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 18px;
  overflow: hidden;
}

.summary-grid div {
  background: #fbfcfe;
  min-width: 0;
  padding: 14px;
}

.summary-grid span,
.field span,
.control-panel label {
  color: #596579;
  display: block;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 6px;
}

.summary-grid strong {
  display: block;
  overflow-wrap: anywhere;
}

.layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 0;
  margin-top: 18px;
}

.control-panel {
  border-right: 1px solid #d9dee7;
  padding: 18px;
}

.control-panel button,
.control-panel select {
  margin-top: 10px;
  width: 100%;
}

select,
input,
textarea {
  border: 1px solid #c7ceda;
  border-radius: 6px;
  font: inherit;
  padding: 9px 10px;
  width: 100%;
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.owner-meta,
.boundary-note,
.manual-note {
  background: #f6f7f9;
  border: 1px solid #d9dee7;
  border-radius: 6px;
  color: #4c596d;
  margin-top: 12px;
  padding: 10px;
}

.form-panel {
  padding: 18px;
}

.fields-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.field.full {
  grid-column: 1 / -1;
}

.inline-button {
  margin-top: 8px;
}

.output-panel {
  margin-top: 18px;
  padding: 18px;
}

.output-head {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

pre,
#json-output {
  background: #101722;
  border: 0;
  border-radius: 6px;
  color: #e7eef9;
  margin-top: 14px;
  overflow: auto;
  padding: 14px;
}

#json-output {
  min-height: 360px;
}

@media (max-width: 860px) {
  .topbar,
  .layout {
    display: block;
  }

  .summary-grid,
  .fields-grid {
    grid-template-columns: 1fr;
  }

  .control-panel {
    border-right: 0;
    border-bottom: 1px solid #d9dee7;
  }
}