:root {
  --border: #e3e3e6;
  --text: #1c1c1f;
  --muted: #6b6b72;
  --accent: #2b5d8a;
  --del-bg: #fde8e8;
  --del-fg: #a31616;
  --ins-bg: #e2f5e2;
  --ins-fg: #19641f;
  --warn-bg: #fff6dd;
}

* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 0;
  color: var(--text);
  background: #fafafa;
  line-height: 1.55;
}
main { max-width: 1240px; margin: 0 auto; padding: 1.5rem; }

button, a, [role="button"], label[for], summary { cursor: pointer; }
button:disabled { cursor: default; }

.topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0.8rem 1.5rem;
}
.brand { color: var(--text); text-decoration: none; font-weight: 600; }

h1 { font-size: 1.4rem; }
h2 { font-size: 1.1rem; margin-top: 2rem; }
.meta, .hint { color: var(--muted); font-size: 0.85rem; }
.error { color: var(--del-fg); background: var(--del-bg); padding: 0.5rem 0.8rem; border-radius: 6px; }

/* Login */
.login-box { max-width: 360px; margin: 4rem auto; background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 2rem; }
.login-box input { width: 100%; padding: 0.5rem; margin: 0.5rem 0 1rem; border: 1px solid var(--border); border-radius: 6px; }

button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.55rem 1.1rem;
  font-size: 0.95rem;
}
button:hover { filter: brightness(1.1); }

/* Upload + Liste */
.upload-form { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 1.2rem; }
.upload-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin-bottom: 1rem; }
.upload-grid label { display: block; font-weight: 600; margin-bottom: 0.4rem; }
table.runs { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--border); border-radius: 8px; }
table.runs th, table.runs td { text-align: left; padding: 0.5rem 0.7rem; border-bottom: 1px solid var(--border); font-size: 0.88rem; }
td.filename { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.status { font-size: 0.78rem; padding: 0.15rem 0.5rem; border-radius: 99px; background: #eee; }
.status-done { background: var(--ins-bg); color: var(--ins-fg); }
.status-failed, .status-interrupted { background: var(--del-bg); color: var(--del-fg); }
.status-running { background: var(--warn-bg); }

/* Fortschritt */
.progress-box { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 1.2rem; margin-top: 1rem; }
.stages { list-style: none; padding: 0; margin: 0; }
.stage { padding: 0.35rem 0; color: var(--muted); }
.stage-marker { display: inline-block; width: 0.7rem; height: 0.7rem; border-radius: 50%; background: #ddd; margin-right: 0.6rem; }
.stage-running { color: var(--text); font-weight: 600; }
.stage-running .stage-marker { background: var(--accent); }
.stage-done { color: var(--text); }
.stage-done .stage-marker { background: var(--ins-fg); }
.stage-failed .stage-marker { background: var(--del-fg); }

/* Ergebnis */
.summary { display: flex; flex-wrap: wrap; gap: 0.7rem; margin: 1rem 0; }
.card { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 0.6rem 0.9rem; font-size: 0.85rem; }
.gates { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 0.7rem 1rem; margin: 1rem 0; }
.gates-warn { background: var(--warn-bg); }
.finding-error { color: var(--del-fg); }
.finding-warning { color: #8a6d1d; }
.finding-info { color: var(--muted); }
.review-banner { background: var(--warn-bg); border: 1px solid #e8d9a0; border-radius: 8px; padding: 0.7rem 1rem; margin: 1rem 0; font-size: 0.9rem; }
.mode-notice { background: var(--warn-bg); border: 1px solid #e8d9a0; border-radius: 8px; padding: 0.7rem 1rem; margin: 1rem 0; font-size: 0.88rem; color: #6b5a1e; }

/* Steuerleiste: Ansicht-Umschalter + Legende */
.viewbar { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; justify-content: space-between; margin: 1.2rem 0 0.5rem; font-size: 0.85rem; }
.viewtoggle { display: inline-flex; border: 1px solid var(--border); border-radius: 99px; overflow: hidden; background: #fff; }
.viewtoggle a { color: var(--accent); text-decoration: none; padding: 0.35rem 0.9rem; }
.viewtoggle a.active { background: var(--accent); color: #fff; }
.legend { display: flex; gap: 1rem; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 0.35rem; }
.swatch { display: inline-block; width: 0.8rem; height: 0.8rem; border-radius: 3px; }
.swatch-del { background: var(--del-bg); border: 1px solid var(--del-fg); }
.swatch-ins { background: var(--ins-bg); border: 1px solid var(--ins-fg); }

/* Sticky Spaltenkopf über dem durchgehenden Side-by-Side */
.colhead {
  position: sticky; top: 0; z-index: 5;
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  background: #fafafa; border-bottom: 2px solid var(--accent);
  padding: 0.5rem 1.2rem; margin: 0 0 0.5rem; font-weight: 600; font-size: 0.9rem;
}
.colhead .filename { display: block; color: var(--muted); font-weight: 400; font-size: 0.78rem; overflow-wrap: anywhere; }

.document { display: flex; flex-direction: column; gap: 0.6rem; }
.doc-section { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 0.8rem 1.2rem; }
.doc-section:not(.is-changed) { background: #fcfcfc; }
.doc-section.is-heading { background: #f4f5f7; padding-top: 0.55rem; padding-bottom: 0.55rem; }
.doc-section.is-heading .section-head { margin: 0; }
.section-head { font-size: 1.05rem; margin: 0.2rem 0 0.6rem; scroll-margin-top: 3.5rem; }
.badge-equal { background: #eef0f2; color: var(--muted); font-weight: 400; }

.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: start; }
.cols-aligned { display: flex; flex-direction: column; gap: 0.6rem; }
.arow { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: stretch; }
.arow .pane:empty { background: transparent; border-style: dashed; }
.pane { border: 1px solid var(--border); border-radius: 6px; padding: 0.8rem; font-size: 0.86rem; overflow-wrap: anywhere; min-height: 1.5rem; }
.pane-old { background: #fffdfd; }
.pane-new { background: #fdfffd; }
.absent { color: var(--muted); font-style: italic; }
del { background: var(--del-bg); color: var(--del-fg); text-decoration: line-through; }
ins { background: var(--ins-bg); color: var(--ins-fg); text-decoration: none; }
/* Rausch-Artefakte (typografisch/Layout): dezent statt laut */
del.seg-soft { background: transparent; color: var(--muted); text-decoration: line-through; text-decoration-color: var(--border); }
ins.seg-soft { background: transparent; color: var(--muted); text-decoration: none; border-bottom: 1px dotted var(--border); }
/* Verschobener Block: eingeklappter, ruhiger Hinweis statt riesiger Lösch-/Einfügeblock */
.seg-moved { display: inline-block; font-size: 0.78rem; color: var(--muted); background: #f4f5f7; border: 1px dashed var(--border); border-radius: 6px; padding: 0.05rem 0.5rem; cursor: help; }
.swatch-move { background: #f4f5f7; border: 1px dashed var(--muted); }
.cat-verschoben { background: #f4f5f7; color: var(--muted); }
/* OCR-Lesefehler: dezent mit gepunkteter Markierung als Hinweis */
.seg-ocr { text-decoration: underline dotted; text-decoration-color: #c9a23a; cursor: help; }
.cat-ocr-artefakt { background: var(--warn-bg); color: #8a6d1d; }

.hunkdetails { margin-bottom: 0.6rem; font-size: 0.84rem; }
.hunkdetails summary { color: var(--accent); }
.tablecaption { margin: 0.8rem 0 0.2rem; font-weight: 600; }

.hunklist { list-style: none; padding: 0; font-size: 0.84rem; }
.hunklist li { padding: 0.3rem 0; border-bottom: 1px dashed var(--border); }
.chip { display: inline-block; font-size: 0.72rem; padding: 0.05rem 0.5rem; border-radius: 99px; background: #efeff2; margin-right: 0.4rem; }
.cat-inhaltlich-kritisch { background: var(--del-bg); color: var(--del-fg); font-weight: 600; }
.cat-inhaltlich { background: #e8eef7; color: var(--accent); }
.cat-umformuliert-bedeutungsgleich { background: #f1ecf9; color: #5d3f8a; }
.cat-typografisch, .cat-layout-artefakt { background: #efeff2; color: var(--muted); }
.cat-unsicher { background: var(--warn-bg); color: #8a6d1d; }
.badge { font-size: 0.7rem; padding: 0.1rem 0.5rem; border-radius: 99px; background: #efeff2; vertical-align: middle; }
.badge-ins { background: var(--ins-bg); color: var(--ins-fg); }
.badge-del { background: var(--del-bg); color: var(--del-fg); }

.tablewrap { overflow-x: auto; }
.difftable { border-collapse: collapse; font-size: 0.82rem; margin: 0.5rem 0 1rem; }
.difftable td { border: 1px solid var(--border); padding: 0.3rem 0.5rem; vertical-align: top; }
.row-added td { background: var(--ins-bg); }
.row-removed td { background: var(--del-bg); }
.cell-changed { background: var(--warn-bg); }

.imagepair { margin: 1rem 0; }
.imagepair img, .decogrid img { max-width: 100%; border: 1px solid var(--border); border-radius: 4px; }
.imagegrid-head { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; font-weight: 600; font-size: 0.85rem; }
.img-added { background: var(--ins-bg); color: var(--ins-fg); }
.img-removed { background: var(--del-bg); color: var(--del-fg); }
.img-changed { background: var(--warn-bg); color: #8a6d1d; }
.decogrid { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.decogrid img { max-height: 60px; }

@media (max-width: 900px) {
  .cols, .arow, .upload-grid { grid-template-columns: 1fr; }
}