:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --border: #e1e4e8;
  --text: #1c2128;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --ok: #16a34a;
  --accent: #eef2ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}
header h1 { font-size: 18px; margin: 0; }
nav { display: flex; gap: 4px; }

.tab {
  background: none;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
}
.tab:hover { background: var(--bg); }
.tab.active { background: var(--accent); color: var(--primary); font-weight: 600; }

main { max-width: 1100px; margin: 0 auto; padding: 24px; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 16px;
}
.card h2 { margin: 0 0 14px; font-size: 15px; }
.card h3 { font-size: 13px; margin: 18px 0 8px; color: var(--muted); }

.muted { color: var(--muted); font-size: 13px; }
.link { color: var(--primary); cursor: pointer; text-decoration: underline; }

.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.params label { display: flex; flex-direction: column; font-size: 12px; color: var(--muted); gap: 2px; }
.params input { width: 90px; }

input, textarea, select {
  font-family: inherit;
  font-size: 14px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
}
textarea { width: 100%; resize: vertical; }
select { min-width: 200px; }

.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 14px; max-width: 520px; }
.field input { width: 100%; }

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 28px;
  text-align: center;
  color: var(--muted);
  transition: 0.15s;
}
.dropzone.drag { border-color: var(--primary); background: var(--accent); }

.previews { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.preview {
  position: relative;
  width: 90px; height: 90px;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.preview img { width: 100%; height: 100%; object-fit: cover; }
.preview.pdf {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 4px; background: var(--accent); text-align: center; padding: 4px;
}
.preview.pdf { width: 190px; height: 112px; overflow: visible; }
.preview.pdf .pdf-ico { font-size: 18px; }
.preview.pdf .pdf-name { font-size: 9px; color: var(--muted); word-break: break-all; line-height: 1.1; }
.reference-state { font-size: 10px; color: var(--muted); }
.reference-state.attached { color: var(--ok); font-weight: 600; }
.reference-attach {
  cursor: pointer; font-size: 10px; color: var(--primary); text-decoration: underline;
}
.reference-generate { border: 0; background: transparent; padding: 0; }
.schema-builder.readonly { opacity: 0.85; }
.pdf-thumb {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  height: 120px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--accent); color: var(--primary); text-decoration: none;
  font-size: 28px; text-align: center; padding: 8px; word-break: break-all;
}
.pdf-thumb { font-size: 12px; }
.pdf-thumb::first-line { font-size: 28px; }
.preview .x {
  position: absolute; top: 2px; right: 2px;
  background: rgba(0,0,0,0.6); color: #fff;
  border: none; border-radius: 50%;
  width: 20px; height: 20px; cursor: pointer; line-height: 1;
}
.batch-metadata {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px; align-items: end; margin-top: 12px; padding: 12px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--bg);
}
.batch-metadata label, .file-metadata label, .stats-filters label {
  display: flex; flex-direction: column; gap: 4px; font-size: 11px; color: var(--muted);
}
.preview.file-preview {
  width: min(100%, 520px); height: auto; min-height: 150px; overflow: visible;
  display: grid; grid-template-columns: 150px 1fr; align-items: stretch;
  background: var(--card); padding: 10px; gap: 12px;
}
.preview.file-preview.pdf { width: min(100%, 520px); height: auto; }
.file-summary {
  min-width: 0; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 6px; text-align: center;
}
.file-summary img { width: 120px; height: 82px; border-radius: 5px; object-fit: cover; }
.file-summary .pdf-name { font-size: 10px; word-break: break-word; }
.file-metadata { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; align-content: center; }
.file-metadata input { width: 100%; min-width: 0; }
.file-metadata .reference-attach { align-self: end; }
.preview.dataset-preview {
  width: min(100%, 520px); height: auto; min-height: 150px;
}
.metadata-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 3px; }

/* Models checks */
.model-checks { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.model-checks label {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px; border: 1px solid var(--border);
  border-radius: 20px; cursor: pointer;
}
.model-checks label:has(input:checked) { background: var(--accent); border-color: var(--primary); }

/* Buttons */
.btn-primary {
  background: var(--primary); color: #fff; border: none;
  padding: 10px 20px; border-radius: 8px; cursor: pointer;
  font-size: 14px; font-weight: 600;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-sm {
  background: #fff; border: 1px solid var(--border);
  padding: 7px 12px; border-radius: 6px; cursor: pointer; font-size: 13px;
}
.btn-sm:hover { background: var(--bg); }
.btn-danger { color: var(--danger); border-color: #fecaca; }

.run-status { margin: 12px 0; font-size: 13px; color: var(--muted); }

/* Results */
.result-block { margin-top: 16px; }
.result-block h3 { font-size: 14px; margin: 20px 0 8px; }
.compare {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(260px, 1fr);
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
}
.compare .img-col { grid-column: 1; }
.img-thumb { width: 100%; border: 1px solid var(--border); border-radius: 8px; }
.model-col {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  display: flex; flex-direction: column;
}
.model-col .head {
  padding: 8px 12px; border-bottom: 1px solid var(--border);
  font-weight: 600; display: flex; justify-content: space-between; align-items: center;
}
.model-col .out {
  padding: 12px; white-space: pre-wrap; word-break: break-word;
  font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12.5px;
  flex: 1; max-height: 420px; overflow-y: auto;
}
.model-col .meta {
  padding: 8px 12px; border-top: 1px solid var(--border);
  font-size: 11.5px; color: var(--muted); display: flex; gap: 10px; flex-wrap: wrap;
}
.model-col.error .out { color: var(--danger); }
.copy-btn { background: none; border: 1px solid var(--border); border-radius: 5px; cursor: pointer; font-size: 11px; padding: 2px 6px; }

.badge { padding: 1px 7px; border-radius: 10px; font-size: 11px; }
.badge.ok { background: #dcfce7; color: var(--ok); }
.badge.error { background: #fee2e2; color: var(--danger); }
.badge.warning { background: #fef3c7; color: #92400e; }
.badge-group { display: flex; gap: 5px; align-items: center; }

/* History */
.history-list { display: flex; flex-direction: column; gap: 6px; }
.history-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px; cursor: pointer;
}
.history-item:hover { background: var(--bg); }
.history-item .meta { font-size: 12px; color: var(--muted); }

/* Settings table */
.models-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.models-table th, .models-table td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--border); }
.models-table th { color: var(--muted); font-weight: 600; }
.model-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.model-form input[type=text], .model-form input[type=number] { width: 150px; }
.field-sm { display: flex; flex-direction: column; gap: 2px; font-size: 11px; color: var(--muted); }
.field-sm select { min-width: 240px; }
.inline { display: flex; align-items: center; gap: 4px; }
.hidden { display: none !important; }

.conn-result { font-size: 13px; margin-left: 8px; }
.conn-result.ok { color: var(--ok); }
.conn-result.error { color: var(--danger); }

.icon-btn { background: none; border: none; cursor: pointer; color: var(--muted); font-size: 14px; }
.icon-btn:hover { color: var(--danger); }

/* ---------- UX vylepšenia ---------- */

/* kroky */
.step {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--primary); color: #fff; font-size: 12px; margin-right: 8px;
}

/* setup banner */
.banner {
  background: #fffbeb; border: 1px solid #fde68a; color: #92400e;
  border-radius: 10px; padding: 12px 16px; margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px; font-size: 13.5px;
}
.link-btn {
  background: none; border: none; color: var(--primary);
  cursor: pointer; font-size: inherit; text-decoration: underline; padding: 0;
}

/* provider karty */
.provider-card { border-left: 3px solid var(--primary); }
.provider-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.provider-head h2 { margin: 0; }
.hint {
  font-size: 12.5px; color: var(--muted); background: var(--bg);
  border-radius: 6px; padding: 8px 10px; margin: 10px 0 14px;
}
.hint code { font-size: 11.5px; background: #fff; padding: 1px 5px; border-radius: 4px; border: 1px solid var(--border); }
.pill { font-size: 11px; padding: 3px 10px; border-radius: 12px; white-space: nowrap; }
.pill.on { background: #dcfce7; color: var(--ok); }
.pill.off { background: #fee2e2; color: var(--danger); }
.row.wrap { align-items: flex-start; }
.field.grow { flex: 1; min-width: 260px; }
.save-row { margin: 0 0 16px; }

/* chips — rýchle pridanie modelu */
.chip {
  background: var(--accent); border: 1px solid var(--primary);
  color: var(--primary); border-radius: 16px; padding: 5px 12px;
  cursor: pointer; font-size: 12.5px; margin: 2px;
}
.chip:hover { background: var(--primary); color: #fff; }

/* formulár modelu — mriežka s popiskami */
.model-form-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px; align-items: end;
}
.ff { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.ff input, .ff select { width: 100%; }
.ff .q {
  display: inline-flex; align-items: center; justify-content: center;
  width: 15px; height: 15px; border-radius: 50%; background: var(--border);
  color: var(--muted); font-size: 10px; cursor: help; margin-left: 3px;
}
.inline-ff { flex-direction: row; align-items: center; gap: 6px; align-self: center; }
.form-actions { grid-column: 1 / -1; }

/* mini tag pri modeli */
.mini-tag {
  font-size: 10px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 1px 7px; color: var(--muted); vertical-align: middle;
}

/* rozšírené parametre */
.advanced summary { cursor: pointer; font-size: 13px; color: var(--muted); }
.advanced[open] summary { margin-bottom: 10px; }

/* toasty */
#toasts { position: fixed; bottom: 20px; right: 20px; z-index: 100; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--text); color: #fff; padding: 10px 16px; border-radius: 8px;
  font-size: 13.5px; opacity: 0; transform: translateY(8px);
  transition: 0.25s; max-width: 360px; box-shadow: 0 4px 14px rgba(0,0,0,0.18);
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.ok { background: #14532d; }
.toast.err { background: #7f1d1d; }

/* spinner */
.spinner {
  display: inline-block; width: 14px; height: 14px;
  border: 2px solid var(--border); border-top-color: var(--primary);
  border-radius: 50%; animation: spin 0.8s linear infinite; vertical-align: -2px; margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.btn-run { font-size: 15px; padding: 12px 28px; }

/* štatistiky — bar charty */
.stats-table td { vertical-align: middle; }
.stats-filters {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px; margin-top: 16px;
}
.stats-filters select { width: 100%; min-width: 0; }
.compare-selects select { min-width: 240px; }
.model-comparison { margin-top: 14px; }
.comparison-table .metric-winner { background: #dcfce7; color: #166534; font-weight: 700; }
.stats-model-link {
  border: 0; padding: 0; background: none; color: var(--primary);
  font: inherit; font-weight: 700; text-align: left; cursor: pointer;
}
.stats-model-link:hover { text-decoration: underline; }
.stats-detail-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; }
.stats-detail-head h2 { margin: 0; }
.stats-detail-actions { display: flex; align-items: flex-end; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.stats-detail-file { display: grid; gap: 4px; color: var(--muted); font-size: 11px; text-align: left; }
.stats-detail-file select { min-width: 260px; max-width: 420px; }
.stats-detail-summary {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px; margin: 16px 0;
}
.stats-detail-metric {
  padding: 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg);
}
.stats-detail-metric strong { display: block; margin-top: 4px; font-size: 19px; }
.stats-explanation {
  padding: 10px 12px; margin: 12px 0; border-left: 4px solid var(--primary);
  background: var(--bg); color: var(--muted); font-size: 13px;
}
.stats-detail-scroll { overflow: auto; max-height: 540px; }
.stats-detail-table { min-width: 980px; }
.stats-detail-table td { vertical-align: top; }
.stats-detail-table details { max-width: 420px; }
.stats-detail-table summary { cursor: pointer; }
.stats-field-examples { margin-top: 6px; font-size: 12px; color: var(--muted); }
.stats-field-examples div + div { margin-top: 4px; }
.stats-score-ok { color: #166534; font-weight: 700; }
.stats-score-bad { color: #991b1b; font-weight: 700; }
.stats-status-ok, .stats-status-error {
  display: inline-block; border-radius: 999px; padding: 2px 8px; font-size: 11px; font-weight: 700;
}
.stats-status-ok { background: #dcfce7; color: #166534; }
.stats-status-error { background: #fee2e2; color: #991b1b; }
.stats-report-builder {
  margin-top: 14px; padding: 18px; border: 1px solid #bfdbfe; border-radius: 12px;
  background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 55%, #eef2ff 100%);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.08);
}
.stats-report-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; }
.stats-report-head strong { font-size: 16px; color: #1e3a8a; }
.stats-report-head p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }
.stats-report-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 10px; margin-top: 14px;
}
.stats-report-grid label { display: grid; gap: 5px; font-size: 12px; color: var(--muted); }
.stats-report-grid input, .stats-report-grid select { width: 100%; min-width: 0; background: #fff; }
.stats-report-sections { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 14px 0 8px; }
.stats-report-sections label { display: flex; gap: 7px; align-items: center; font-size: 13px; }
.stats-report-sections input { width: auto; }
.stats-report-builder > .row { margin-top: 12px; }
.bar-wrap { display: flex; align-items: center; gap: 6px; min-width: 120px; }
.bar-wrap .bar {
  height: 10px; background: var(--primary); border-radius: 5px;
  min-width: 2px; opacity: 0.75;
}
.bar-wrap .bar.cost { background: var(--ok); }
.bar-wrap span { font-size: 12px; white-space: nowrap; }

/* dataset riadok */
.dataset-row { margin-top: 12px; }

@media (max-width: 640px) {
  .preview.file-preview { grid-template-columns: 1fr; }
  .file-metadata { grid-template-columns: 1fr; }
  .compare-selects select { min-width: 0; width: 100%; }
  .stats-detail-head { display: grid; }
  .stats-detail-actions { justify-content: stretch; }
  .stats-detail-file, .stats-detail-file select { width: 100%; min-width: 0; }
  .stats-report-grid { grid-template-columns: 1fr; }
}

/* markdown výstup */
.out.md-out { font-family: inherit; font-size: 13px; }
.out.md-out h1, .out.md-out h2, .out.md-out h3 { font-size: 14px; margin: 8px 0 4px; }
.out.md-out p { margin: 4px 0; }
.out.md-out table { border-collapse: collapse; margin: 6px 0; font-size: 12px; }
.out.md-out th, .out.md-out td { border: 1px solid var(--border); padding: 3px 8px; }
.out.md-out th { background: var(--bg); }
.out.md-out code { background: var(--bg); padding: 1px 4px; border-radius: 3px; font-size: 11.5px; }
.out.md-out pre { background: var(--bg); padding: 8px; border-radius: 6px; overflow-x: auto; }
.out.md-out blockquote { border-left: 3px solid var(--border); margin: 4px 0; padding-left: 10px; color: var(--muted); }
.out.md-out ul, .out.md-out ol { margin: 4px 0; padding-left: 20px; }

/* diff */
.diff-wrap { margin-top: 10px; }
.diff-panel { margin-top: 8px; padding: 10px; background: var(--card); border: 1px solid var(--border); border-radius: 8px; }
.diff-out {
  margin-top: 10px; white-space: pre-wrap; word-break: break-word;
  font-family: ui-monospace, Menlo, monospace; font-size: 12.5px;
  max-height: 400px; overflow-y: auto;
}
.diff-out del { background: #fee2e2; color: #991b1b; text-decoration: line-through; }
.diff-out ins { background: #dcfce7; color: #166534; text-decoration: none; }

/* toolbar behu (export) */
.run-toolbar { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; margin-bottom: 4px; }
.run-toolbar a { text-decoration: none; color: var(--text); }

/* mode toggle (OCR / extrakcia) */
.mode-toggle {
  display: flex; gap: 8px; margin-bottom: 14px;
}
.mode-toggle label {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px; border: 1px solid var(--border); border-radius: 8px;
  cursor: pointer; font-size: 13.5px;
}
.mode-toggle label:has(input:checked) {
  background: var(--accent); border-color: var(--primary); color: var(--primary); font-weight: 600;
}
.mode-toggle input { display: none; }

/* schema builder */
.schema-section { margin-bottom: 16px; padding: 14px; background: var(--bg); border-radius: 10px; }
.schema-section > .row { margin-bottom: 10px; }
.reference-generator {
  margin-top: 14px; padding: 14px; background: var(--card); border: 1px solid var(--border);
  border-radius: 10px;
}
.reference-generator h3 { margin: 0 0 4px; font-size: 15px; }
.reference-generator select { margin: 8px 0; min-width: min(100%, 360px); }
.reference-generator textarea { margin: 8px 0; font-family: ui-monospace, Menlo, monospace; }
.schema-builder { display: flex; flex-direction: column; gap: 4px; }
.field-list { display: flex; flex-direction: column; gap: 6px; }
.field-list.nested {
  margin-left: 26px; padding-left: 12px;
  border-left: 2px solid var(--primary); margin-bottom: 4px;
}
.field-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.field-row .f-name { width: 200px; }
.field-row .f-type { min-width: 160px; }
.add-field { align-self: flex-start; margin-top: 2px; }
#schemaRaw { width: 100%; font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12.5px; }

/* JSON výstup v bunke */
.out.json-out { font-family: ui-monospace, "SF Mono", Menlo, monospace; }
.jk { color: #1d4ed8; }
.js { color: #15803d; }
.jn { color: #b45309; }

/* extrakčná tabuľka pole × model */
.extract-table-wrap { margin-top: 12px; overflow-x: auto; }
.extract-table-wrap h4 { margin: 8px 0; font-size: 13px; }
.extract-table { width: 100%; border-collapse: collapse; font-size: 12.5px; background: var(--card); }
.extract-table th, .extract-table td {
  text-align: left; padding: 6px 10px; border: 1px solid var(--border);
}
.extract-table th { background: var(--bg); font-weight: 600; }
.extract-table td.path { font-family: ui-monospace, Menlo, monospace; color: var(--muted); }
.extract-table tr.match td:not(.path) { background: #f0fdf4; }
.extract-table tr.differ td:not(.path) { background: #fefce8; }
.extract-table td.cell-reference { background: #dbeafe; }
.extract-table td.cell-match {
  background: #bbf7d0;
  color: #14532d;
  font-weight: 700;
  box-shadow: inset 4px 0 #22c55e;
}
.extract-table td.cell-mismatch { background: #fef3c7; }

/* A/B test promptov */
.ab-section {
  margin-top: 10px; padding: 12px;
  background: var(--accent); border-radius: 8px;
  display: flex; flex-direction: column; gap: 8px;
}
.ab-label { font-weight: 600; font-size: 13px; color: var(--primary); }

/* streaming — čakajúce bunky */
.model-col.pending { opacity: 0.75; }
.model-col.pending .out { color: var(--muted); display: flex; align-items: center; gap: 8px; }
.model-col.pending .badge { background: var(--accent); color: var(--primary); }

/* prepínač režimu odosielania */
.grouping {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-top: 12px; padding: 10px 12px;
  background: var(--bg); border-radius: 8px; font-size: 13px;
}
.grouping label { display: flex; align-items: center; gap: 5px; cursor: pointer; }

/* miniatúry v kombinovanom bloku */
.img-col.thumbs { display: flex; flex-direction: column; gap: 8px; }
.img-col.thumbs .img-thumb { max-height: 110px; object-fit: contain; }
.pdf-thumb.small { height: auto; padding: 10px; font-size: 11px; }