:root {
  --bg: #f3f4f6;
  --panel: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --border: #d1d5db;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --soft: #eef2ff;
  --danger: #b91c1c;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app {
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 14px;
  gap: 10px;
}

.topbar,
.toolbar,
.statusbar,
.panel,
.setup-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
}

h1 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
}

.top-actions {
  display: flex;
  gap: 8px;
}

.toolbar {
  display: flex;
  align-items: end;
  gap: 10px;
  padding: 10px;
  flex-wrap: wrap;
}

.workspace {
  min-height: 0;
  flex: 1;
  display: grid;
  grid-template-columns: 45% 55%;
  gap: 10px;
}

.panel {
  min-height: 0;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.field.inline {
  min-width: 170px;
}

.model-field {
  min-width: 190px;
}

.model-info {
  max-width: 360px;
  min-height: 34px;
  display: flex;
  align-items: center;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fafafa;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.25;
}

label,
.synonyms-title {
  font-size: 13px;
  font-weight: 700;
  color: #374151;
}

select,
input,
textarea,
button {
  font-family: inherit;
  font-size: 14px;
}

select,
input,
textarea {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  background: #fff;
  color: var(--text);
}

textarea {
  width: 100%;
  resize: vertical;
  line-height: 1.45;
}

.input-panel textarea {
  min-height: 115px;
}

.output-panel textarea {
  flex: 1;
  min-height: 260px;
  resize: none;
}

.extra-inputs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.selection-actions {
  display: flex;
  gap: 8px;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
  font-weight: 700;
}

button.primary {
  background: var(--accent);
  color: #fff;
}

button.primary:hover {
  background: var(--accent-dark);
}

button.secondary {
  background: var(--soft);
  color: #1e3a8a;
}

button.secondary:hover {
  background: #dbeafe;
}

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

.synonyms-box {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  background: #fafafa;
}

.synonyms-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.synonym-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 9px;
  background: #fff;
  cursor: pointer;
  font-size: 13px;
}

.synonym-chip:hover {
  background: var(--soft);
}

.setup-box {
  padding: 8px 12px;
  font-size: 13px;
}

.setup-box summary {
  cursor: pointer;
  font-weight: 700;
  color: #374151;
}

.setup-content {
  margin-top: 8px;
  color: var(--muted);
}

.setup-content p {
  margin: 6px 0;
}

.setup-content pre {
  margin: 8px 0 4px;
  padding: 10px;
  border-radius: 10px;
  background: #111827;
  color: #f9fafb;
  overflow-x: auto;
}

.setup-content code {
  font-family: Consolas, Monaco, monospace;
  font-size: 13px;
}

.statusbar {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--muted);
}

.hidden {
  display: none;
}

.output-panel {
  position: relative;
}

.loading-overlay {
  position: absolute;
  top: 54px;
  left: 12px;
  right: 12px;
  height: 42px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid #bfdbfe;
  border-radius: 12px;
  background: rgba(239, 246, 255, 0.96);
  color: #1e3a8a;
  font-size: 14px;
  font-weight: 700;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 3px solid #bfdbfe;
  border-top-color: #2563eb;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

body.busy {
  cursor: wait;
}

body.busy textarea,
body.busy button,
body.busy select,
body.busy input {
  cursor: wait;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-overlay.hidden {
  display: none;
}

@media (max-width: 900px) {
  .app {
    height: auto;
    min-height: 100vh;
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  .output-panel textarea {
    min-height: 260px;
  }

  .model-info {
    max-width: 100%;
  }
}

.input-panel {
  overflow: auto;
}

.extra-inputs textarea {
  min-height: 82px;
}

.input-panel > .field > textarea {
  min-height: 100px;
}

@media (min-width: 901px) {
  .workspace {
    min-height: 0;
  }

  .input-panel {
    min-height: 0;
  }

  .input-panel textarea {
    resize: vertical;
  }
}