*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue: #2563eb;
  --blue-light: #eff6ff;
  --blue-mid: #bfdbfe;
  --slate: #475569;
  --slate-light: #f8fafc;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --radius: 10px;
  --sidebar-width: 380px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 14px;
  color: var(--text);
  background: #f0f4f8;
  height: 100dvh;
  overflow: hidden;
}

/* ── Layout ── */
.layout {
  display: flex;
  height: 100dvh;
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-width);
  min-width: 320px;
  background: #fff;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 16px 18px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.sidebar-header h1 {
  font-size: 16px;
  font-weight: 700;
}

.version-badge {
  background: var(--blue-light);
  color: var(--blue);
  border: 1px solid var(--blue-mid);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
}

/* scrollable body of sidebar */
.sidebar > .section,
.sidebar > .run-bar {
  padding: 14px 18px;
}

.sidebar > .section {
  border-bottom: 1px solid var(--border);
  overflow-y: auto;
}

/* allow sections to shrink/grow */
.sidebar { overflow-y: auto; }

.section-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  user-select: none;
}

.section-title.collapsible-trigger:hover {
  color: var(--text);
}

.collapse-arrow {
  font-size: 12px;
  color: var(--text-muted);
  transition: transform 0.15s;
  flex-shrink: 0;
}

.section-collapsed .section-title {
  margin-bottom: 0;
}

.section-body {
  overflow: hidden;
}

.step-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-dot.beta {
  background: #7c3aed;
}

.section-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
  line-height: 1.5;
}

label {
  display: block;
  font-weight: 600;
  font-size: 12px;
  color: var(--text-muted);
  margin: 10px 0 4px;
}

label:first-of-type { margin-top: 0; }

/* ── Info tooltip ── */
.info-tip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #e2e8f0;
  color: #64748b;
  font-size: 10px;
  font-weight: 700;
  cursor: default;
  position: relative;
  vertical-align: middle;
  margin-left: 4px;
  flex-shrink: 0;
  user-select: none;
}

.info-tip::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  white-space: pre;
  background: #1e293b;
  color: #e2e8f0;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.6;
  padding: 10px 14px;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 9000;
  min-width: 220px;
  max-width: 300px;
}

.info-tip::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: calc(100% + 2px);
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: #1e293b;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 9001;
}

.info-tip:hover::after,
.info-tip:hover::before {
  opacity: 1;
}

input, textarea, select {
  width: 100%;
  font-size: 13px;
  font-family: inherit;
  color: var(--text);
  background: var(--slate-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  resize: vertical;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
  background: #fff;
}

.inline-row {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}

.field-group {
  flex: 1;
}

/* ── Buttons ── */
button { font-family: inherit; font-weight: 600; cursor: pointer; border: none; border-radius: 8px; transition: opacity 0.15s; }
button:hover { opacity: 0.88; }
button:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary { background: var(--blue); color: #fff; padding: 8px 14px; }
.btn-ghost { background: transparent; color: var(--slate); border: 1px solid var(--border); padding: 6px 10px; font-size: 12px; }
.btn-ghost:hover { background: var(--slate-light); opacity: 1; }
.btn-sm { font-size: 12px; padding: 5px 10px; border-radius: 6px; }
.btn-row { display: flex; gap: 6px; margin-top: 6px; flex-wrap: wrap; }
.ml-auto { margin-left: auto; }

/* ── Run bar ── */
.run-bar {
  border-top: 1px solid var(--border);
  background: #fff;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 18px;
}

.btn-run {
  background: var(--blue);
  color: #fff;
  padding: 12px;
  font-size: 14px;
  border-radius: 10px;
  width: 100%;
}

.btn-stop {
  background: #fff;
  color: #dc2626;
  border: 1px solid #fca5a5;
  padding: 8px;
  font-size: 13px;
  border-radius: 8px;
  width: 100%;
}

.status-text {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}

/* ── Parallel count selector ── */
.run-count-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.run-count-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin: 0;
  flex-shrink: 0;
}

.run-count-btns {
  display: flex;
  gap: 4px;
}

.run-count-btns button {
  width: auto;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 6px;
  background: var(--slate-light);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.run-count-btns button:hover {
  background: #e2e8f0;
  opacity: 1;
}

.run-count-btns button.active {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

/* ── Collapsible ── */
.collapsible {
  margin-top: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.collapsible summary {
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--slate-light);
}

.collapsible summary::before { content: "▶"; font-size: 10px; transition: transform 0.2s; }
details[open].collapsible summary::before { transform: rotate(90deg); }

.collapsible > *:not(summary) {
  padding: 0 12px 10px;
}

.collapsible label:first-of-type { margin-top: 10px; }

/* ── Toggle switch ── */
.toggle-switch { display: inline-flex; align-items: center; cursor: pointer; }
.toggle-switch input { display: none; }
.toggle-track {
  width: 36px; height: 20px;
  background: #cbd5e1;
  border-radius: 999px;
  position: relative;
  transition: background 0.2s;
}
.toggle-track::after {
  content: "";
  position: absolute;
  top: 3px; left: 3px;
  width: 14px; height: 14px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}
.toggle-switch input:checked + .toggle-track { background: var(--blue); }
.toggle-switch input:checked + .toggle-track::after { transform: translateX(16px); }

/* ── Results pane ── */
.results-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #f0f4f8;
}

.results-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  gap: 12px;
  flex-wrap: wrap;
}

.results-meta-row { display: flex; align-items: baseline; gap: 12px; }
.results-meta-row h2 { font-size: 15px; font-weight: 700; }
.summary-text { font-size: 12px; color: var(--text-muted); }

.toolbar-actions { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.toolbar-actions select { width: auto; font-size: 12px; padding: 5px 8px; background: var(--slate-light); }

.results-grid {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
  align-content: start;
}

.results-empty {
  position: absolute;
  top: 50%;
  left: calc(var(--sidebar-width) + 50%);
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--text-muted);
  pointer-events: none;
}

.empty-icon { font-size: 32px; margin-bottom: 8px; opacity: 0.3; }

/* ── Cards ── */
.result-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.15s;
}

.result-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.08); }

.card-selected {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}

.result-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 6px;
}

.result-title { font-weight: 700; font-size: 13px; }

.card-right { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  background: #e2e8f0;
  color: #334155;
}
.badge.ok { background: #dcfce7; color: #166534; }
.badge.fail { background: #fee2e2; color: #991b1b; }
.badge.loading { background: #fef9c3; color: #854d0e; }

.result-meta { font-size: 11px; color: var(--text-muted); }

.result-text {
  flex: 1;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  overflow: hidden;
}

.result-footer {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.result-footer button { font-size: 11px; padding: 5px 9px; border-radius: 6px; width: auto; }

/* ── Preview dialog split layout ── */
.preview-body-wrap {
  display: flex;
  max-height: 75vh;
  overflow: hidden;
}

.preview-col {
  flex: 1;
  max-height: 75vh;
  overflow-y: auto;
  transition: flex 0.2s;
}

.preview-col-half {
  flex: 1;
  border-right: 1px solid var(--border);
}

.trans-col {
  flex: 1;
  background: #fafbff;
  display: flex;
  flex-direction: column;
}

.trans-col.hidden { display: none; }

.trans-col-label {
  padding: 8px 16px;
  font-size: 11px;
  font-weight: 700;
  color: #6366f1;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid #e0e7ff;
  background: #eef2ff;
  flex-shrink: 0;
}

.trans-col-body {
  flex: 1;
  padding: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: #1e293b;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
  font-family: inherit;
}

/* ── Card thinking block ── */
.card-thinking {
  margin-bottom: 6px;
  padding: 6px 10px;
  background: #f5f3ff;
  border: 1px solid #ddd6fe;
  border-left: 3px solid #a78bfa;
  border-radius: 7px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.card-thinking.hidden { display: none; }

.thinking-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #7c3aed;
}

.thinking-text {
  font-size: 11.5px;
  color: #6d28d9;
  opacity: 0.75;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.45;
  font-style: italic;
}

.badge.loading { background: #ede9fe; color: #6d28d9; }

/* ── Card prefix block ── */
.card-prefix {
  margin-bottom: 6px;
  padding: 7px 10px;
  background: #fef9f0;
  border: 1px solid #fcd34d;
  border-left: 3px solid #f59e0b;
  border-radius: 7px;
  font-size: 12.5px;
  line-height: 1.55;
  color: #78350f;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.card-prefix-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #b45309;
  opacity: 0.8;
}

.card-prefix-text {
  white-space: pre-wrap;
  word-break: break-word;
}

.result-text-continuation {
  border-left: 3px solid #a5f3fc;
  padding-left: 8px;
  margin-left: 1px;
}

/* ── Streaming cursor ── */
.streaming-cursor {
  display: inline-block;
  color: var(--blue);
  animation: blink 0.8s step-start infinite;
  font-weight: 700;
  margin-left: 1px;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ── Prefix / lock ── */
.locked-chips-area { margin: 6px 0; min-height: 20px; }
.locked-chip {
  display: inline-block;
  background: var(--blue-light);
  color: #1e40af;
  border: 1px solid var(--blue-mid);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 11px;
  margin: 2px;
  max-width: 100%;
  word-break: break-all;
}

.selection-tooltip {
  position: fixed;
  z-index: 9999;
  background: #1e293b;
  border-radius: 8px;
  padding: 6px 8px;
  display: flex;
  gap: 6px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  transform: translateX(-50%);
  white-space: nowrap;
}
.selection-tooltip.hidden { display: none; }
.selection-tooltip button { width: auto; padding: 5px 10px; font-size: 12px; font-weight: 600; border-radius: 6px; background: var(--blue); color: #fff; }
.selection-tooltip button.secondary { background: var(--slate); }

.hidden { display: none; }

/* ── Dialogs ── */
.dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  width: min(900px, 92vw);
  max-height: 90vh;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.dialog:not([open]) { display: none; }
.dialog::backdrop { background: rgba(15,23,42,0.45); }

.compare-dialog { width: min(1400px, 96vw); max-height: 90vh; }

.compare-grid {
  overflow-x: auto;
}

.dialog-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  font-weight: 700;
}

.dialog-body {
  margin: 0;
  padding: 16px;
  white-space: pre-wrap;
  line-height: 1.6;
  max-height: 72vh;
  overflow: auto;
  font-family: inherit;
  font-size: 14px;
}

.compare-grid { display: grid; grid-template-columns: repeat(2, 1fr); min-width: 0; }
.compare-grid section { border-right: 1px solid var(--border); min-width: 220px; }
.compare-grid section:last-child { border-right: none; }
.compare-col-head { padding: 10px 16px; font-weight: 700; font-size: 13px; border-bottom: 1px solid var(--border); background: var(--slate-light); position: sticky; top: 0; z-index: 1; }

/* ── API key status ── */
.api-key-status { margin-bottom: 2px; }
.api-key-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.api-key-badge.builtin {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}

/* ── View toggle ── */
.view-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 7px;
  overflow: hidden;
}
.view-toggle button {
  width: auto;
  padding: 5px 10px;
  font-size: 14px;
  border-radius: 0;
  background: var(--slate-light);
  color: var(--text-muted);
  border: none;
}
.view-toggle button:hover { background: #e2e8f0; opacity: 1; }
.view-toggle button.active { background: var(--blue); color: #fff; }

/* ── Reading mode grid ── */
.results-grid.reading-mode {
  grid-template-columns: 1fr;
  max-width: 900px;
  margin: 0 auto;
}

.results-grid.reading-mode .result-card {
  min-height: unset;
}

/* content row: original + inline translation side by side */
.card-content-row {
  display: flex;
  gap: 0;
  flex: 1;
  min-height: 0;
}

.card-content-row .result-text {
  flex: 1;
  padding-right: 14px;
  border-right: 1px solid var(--border);
}

.card-content-row .card-trans-inline {
  flex: 1;
  padding-left: 14px;
}

.card-content-row .card-trans-inline.hidden {
  display: none;
}

.card-content-row .card-trans-inline:not(.hidden) ~ .result-text,
.card-content-row .result-text {
  /* no border when no translation */
}

.card-trans-inline.hidden { display: none; }

.trans-inline-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #6366f1;
  margin-bottom: 6px;
}

.trans-inline-body {
  font-size: 13px;
  line-height: 1.65;
  color: #374151;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ── Responsive ── */
@media (max-width: 720px) {
  body { overflow: auto; }
  .layout { flex-direction: column; height: auto; }
  .sidebar { width: 100%; min-width: unset; border-right: none; border-bottom: 1px solid var(--border); overflow: visible; }
  .results-pane { height: auto; overflow: visible; }
  .results-grid { overflow: visible; grid-template-columns: 1fr; }
  .results-empty { position: static; transform: none; left: unset; top: unset; padding: 24px; }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-grid section { border-right: none; border-bottom: 1px solid var(--border); }
}