:root{
  --bg:#eef2f7;
  --panel:#fff;
  --ink:#172033;
  --muted:#64748b;
  --line:#dbe3ed;
  --blue:#2563eb;
  --editor:#0f172a;
  --editor-ink:#e2e8f0;

  --ok:#047857;
  --ok-bg:#ecfdf5;
  --bad:#b91c1c;
  --bad-bg:#fef2f2;
  --warn:#92400e;
  --warn-bg:#fffbeb;

  --mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;
}

*{box-sizing:border-box}
[hidden]{display:none !important}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font:15px/1.55 Inter,system-ui,sans-serif;
}

.app{max-width:1600px;margin:auto;padding:20px}

.back{
  display:inline-block;
  margin-bottom:12px;
  color:var(--muted);
  font-size:13px;
  font-weight:650;
  text-decoration:none;
}
.back:hover{color:var(--blue)}

header,.panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:17px;
  box-shadow:0 8px 25px #0f172a10;
}

header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  padding:15px 18px;
  margin-bottom:17px;
}
header h1{margin:0;font-size:21px}
header p{margin:1px 0;color:var(--muted);font-size:13px}

nav{display:flex;gap:8px;flex-wrap:wrap}

button,.button{
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  padding:9px 13px;
  font:inherit;
  font-weight:750;
  cursor:pointer;
  color:var(--ink);
}
button:hover{border-color:#93c5fd}
button:disabled{cursor:default;opacity:.45}
button:disabled:hover{border-color:var(--line)}
button.small{padding:5px 10px;font-size:13px;border-radius:8px}
.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.primary:hover{border-color:var(--blue)}

:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
textarea:focus-visible,input:focus-visible{outline:2px solid #60a5fa;outline-offset:-2px}

.panel{overflow:hidden;display:flex;flex-direction:column;margin-bottom:17px}

.panel-head{
  min-height:55px;
  padding:10px 14px;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px 12px;
  flex:none;
  flex-wrap:wrap;
}
.panel-head > strong{margin-right:auto}
.panel-head small{color:var(--muted)}
.head-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}

.mini{
  position:relative;
  border:1px solid var(--line);
  border-radius:8px;
  padding:5px 10px;
  font-size:13px;
  font-weight:700;
  color:var(--ink);
  cursor:pointer;
}
.mini:hover{border-color:#93c5fd}
.mini:focus-within{outline:2px solid var(--blue);outline-offset:2px}
.mini input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}

.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Einstellungen ---------- */

.options{
  flex-direction:row;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  padding:12px 16px;
}
.opt-group{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px}
.opt-label{font-size:13px;font-weight:700;color:#334155}

.viewswitch{display:flex;gap:0}
.seg{
  border-radius:0;
  padding:6px 12px;
  font-size:13px;
  font-weight:700;
  color:#334155;
}
.seg + .seg{border-left:0}
.seg:first-child{border-radius:9px 0 0 9px}
.seg:last-child{border-radius:0 9px 9px 0}
.seg.is-active{background:var(--blue);border-color:var(--blue);color:#fff}
.seg.is-active:hover{border-color:var(--blue)}

.select{display:flex;align-items:center;gap:7px;font-size:13px;color:#334155;font-weight:650}
select{
  font:inherit;
  font-weight:650;
  color:var(--ink);
  border:1px solid var(--line);
  border-radius:8px;
  background:#fff;
  padding:4px 8px;
  cursor:pointer;
  max-width:100%;
}
.checkbox{display:flex;align-items:center;gap:6px;cursor:pointer;font-size:13px;color:#334155;font-weight:650}
.checkbox input{width:15px;height:15px;accent-color:var(--blue);margin:0}

/* ---------- Editoren ---------- */

.grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:17px;
  align-items:stretch;
  margin-bottom:17px;
}
.grid .panel{margin-bottom:0}

.badge{
  font-size:12px;
  font-weight:750;
  color:#1e3a8a;
  background:#eff6ff;
  border:1px solid #bfdbfe;
  border-radius:999px;
  padding:1px 9px;
}

.editor{position:relative;background:var(--editor);min-width:0;flex:1}
.editor textarea,.editor .hl{
  margin:0;
  border:0;
  padding:16px 19px;
  font:13px/1.65 var(--mono);
  letter-spacing:normal;
  tab-size:4;
  white-space:pre;
  word-break:normal;
  overflow-wrap:normal;
  font-variant-ligatures:none;
}
.editor textarea{
  position:relative;
  z-index:1;
  display:block;
  width:100%;
  height:48vh;
  min-height:220px;
  resize:vertical;
  outline-offset:-2px;
  background:transparent;
  color:transparent;
  caret-color:#f8fafc;
  overflow:auto;
}
.editor textarea::placeholder{color:#94a3b8}
.editor textarea::selection{background:#60a5fa66;color:transparent}
.editor .backdrop{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.editor .hl{position:absolute;left:0;top:0;color:var(--editor-ink);min-width:100%}
.editor.is-plain textarea{color:var(--editor-ink)}
.editor.is-plain textarea::selection{color:#fff}
.editor.is-plain .backdrop{display:none}
.editor.drag-over{box-shadow:inset 0 0 0 2px var(--blue)}

.hl mark{color:inherit;background:transparent;border-radius:2px}
.hl .m-err{text-decoration-line:underline;text-decoration-style:wavy;text-decoration-color:#f87171;text-decoration-thickness:2px;text-underline-offset:3px;background:#f8717126}
.hl .m-err.is-empty{display:inline-block;width:.6ch;height:1.2em;vertical-align:text-bottom;background:#f87171aa}
.hl .m-warn{text-decoration-line:underline;text-decoration-style:dotted;text-decoration-color:#fbbf24;text-decoration-thickness:2px;text-underline-offset:3px}
.hl .m-info{text-decoration-line:underline;text-decoration-style:dotted;text-decoration-color:#94a3b8;text-decoration-thickness:2px;text-underline-offset:3px}
.hl .m-sel{background:#3b82f64d;box-shadow:0 0 0 1px #60a5fa88}
.hl .m-sel.is-flash{animation:flash .9s ease-out}
@keyframes flash{from{background:#60a5fab3}to{background:#3b82f64d}}

.status{font-size:13px;font-weight:650;color:var(--muted);font-variant-numeric:tabular-nums}
.status.is-error{color:var(--bad)}
.status.is-busy{color:var(--warn)}
.status.is-ok{color:var(--ok)}

.messages:empty{display:none}
.messages{padding:8px 14px 10px;display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line);max-height:30vh;overflow:auto}
.msg{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:2px 8px;
  width:100%;
  align-items:start;
  padding:7px 10px;
  border:0;
  border-radius:9px;
  font-size:13px;
  font-weight:500;
  line-height:1.45;
  text-align:left;
  cursor:pointer;
}
.msg .icon{font-weight:800}
.msg .where{font-weight:750;margin-right:6px;font-variant-numeric:tabular-nums}
.msg .hint{grid-column:2;color:inherit;opacity:.85}
.msg-error{background:var(--bad-bg);color:var(--bad)}
.msg-warn{background:var(--warn-bg);color:var(--warn)}
.msg-info{background:#f1f5f9;color:#334155}
.msg:hover{box-shadow:inset 0 0 0 1px currentColor}
.msg code,.pit code,.hint code{font-family:var(--mono);font-size:12px;background:#ffffffa8;border-radius:4px;padding:0 3px}

.notice{
  padding:9px 14px;
  border-top:1px solid var(--line);
  background:var(--warn-bg);
  color:var(--warn);
  font-size:13px;
}

/* ---------- Pfadleiste ---------- */

.pathbar{
  flex-direction:row;
  align-items:center;
  gap:10px 12px;
  padding:10px 14px;
  flex-wrap:wrap;
}
.pathbar-label{font-size:13px;font-weight:750;color:#334155}
.path-text{
  flex:1;
  min-width:200px;
  font:13px/1.5 var(--mono);
  color:#0f172a;
  background:#f1f5f9;
  border-radius:8px;
  padding:5px 10px;
  overflow-x:auto;
  white-space:nowrap;
}
.path-text.is-empty{color:#475569;font-family:Inter,system-ui,sans-serif}
.path-note{flex-basis:100%;margin:0;font-size:12.5px;color:var(--muted)}

/* ---------- Tabs ---------- */

.tabs{display:flex;gap:4px;flex-wrap:wrap}
.tab{
  border:0;
  border-radius:9px;
  padding:7px 12px;
  font-size:14px;
  font-weight:700;
  color:var(--muted);
  background:transparent;
}
.tab:hover{background:#f1f5f9;color:var(--ink)}
.tab[aria-selected="true"]{background:#eff6ff;color:var(--blue)}
.count{
  display:inline-block;
  min-width:20px;
  margin-left:3px;
  padding:0 6px;
  border-radius:999px;
  background:#e2e8f0;
  color:#334155;
  font-size:11.5px;
  font-weight:800;
  text-align:center;
  font-variant-numeric:tabular-nums;
}
.count:empty{display:none}
.count.is-warn{background:var(--warn-bg);color:var(--warn)}
.count.is-ok{background:var(--ok-bg);color:var(--ok)}
.tab[aria-selected="true"] .count{background:#dbeafe;color:#1e3a8a}
.tabpanel{min-height:0}
.tabpanel:focus-visible{outline:2px solid var(--blue);outline-offset:-2px}

/* ---------- Fallstricke ---------- */

.legend{display:flex;flex-wrap:wrap;gap:6px 8px;padding:10px 14px;border-bottom:1px solid var(--line);background:#f8fafc;font-size:12.5px;color:#334155}
.legend:empty{display:none}
.legend .intro{flex-basis:100%;color:var(--muted)}
.pchip{display:inline-flex;align-items:baseline;gap:5px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:1px 9px;white-space:nowrap}
.pchip b{font-weight:750;color:var(--ink)}
.pchip span{color:#475569}
.pchip.is-tool{border-color:#93c5fd;background:#eff6ff}

.pitfalls{padding:4px 0 12px}
.empty-state{padding:26px 16px;text-align:center;color:var(--muted);font-size:14px}
.empty-state strong{display:block;color:var(--ok);font-size:15px;margin-bottom:2px}
.pit-group{border-bottom:1px solid #eef2f6;padding:12px 14px}
.pit-group:last-child{border-bottom:0}
.pit-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px}
.pit-head h2{margin:0;font-size:15px;line-height:1.35}
.pit-head .count{margin-left:0}
.pit-sev{font-size:11.5px;font-weight:800;border-radius:999px;padding:0 8px}
.pit-sev.warn{background:var(--warn-bg);color:var(--warn)}
.pit-sev.info{background:#f1f5f9;color:#334155}
.pit-text{margin:4px 0 8px;font-size:13.5px;color:#334155;max-width:95ch}
.pit-group .row-actions{margin-left:auto}
.readings{display:flex;flex-direction:column;gap:4px;margin:6px 0 8px}
.reading{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 8px;font-size:13px}
.reading .rl{font-weight:700;min-width:12em}
.reading.t-error .rl{color:var(--bad)}
.reading.t-tool .rl{color:#1e40af}
.reading .who{display:flex;flex-wrap:wrap;gap:4px}
.reading .who span{font-size:12px;color:#334155;background:#f1f5f9;border-radius:6px;padding:0 6px;white-space:nowrap}
.reading .who span.is-tool{background:#dbeafe;color:#1e3a8a}
.occ{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:3px}
.occ li{display:flex;flex-wrap:wrap;align-items:center;gap:4px 8px}
.occ .jump{border:0;background:transparent;padding:2px 6px;border-radius:6px;font-size:12.5px;font-weight:650;color:var(--blue);font-variant-numeric:tabular-nums}
.occ .jump:hover{background:#eff6ff}
.occ .snippet{font:12.5px/1.5 var(--mono);color:#0f172a;background:#f1f5f9;border-radius:5px;padding:0 6px;max-width:48ch;overflow:hidden;text-overflow:ellipsis;white-space:pre}
.occ .fix{padding:2px 8px;font-size:12px;border-radius:7px;font-weight:700}
.occ .more{border:0;background:transparent;color:var(--muted);font-size:12.5px;padding:2px 6px}

/* ---------- Baum ---------- */

.tree-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:10px 14px;border-bottom:1px solid var(--line)}
.search input{
  width:min(340px,70vw);
  border:1px solid var(--line);
  border-radius:9px;
  padding:6px 10px;
  font:inherit;
  font-size:14px;
}
.info-line{font-size:13px;color:var(--muted)}
.tree-bar .row-actions{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.search-hits{list-style:none;margin:0;padding:6px 0;max-height:220px;overflow:auto;border-bottom:1px solid var(--line);background:#f8fafc}
.search-hits li button{display:flex;gap:10px;width:100%;border:0;border-radius:0;background:transparent;text-align:left;font-weight:400;font-size:12.5px;padding:3px 14px}
.search-hits li button:hover,.search-hits li button.is-current{background:#eff6ff}
.search-hits .hp{font-family:var(--mono);color:#1e3a8a;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:50%}
.search-hits .hv{color:#334155;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tree{padding:8px 0 14px;font:13px/1.6 var(--mono);max-height:60vh;overflow:auto}
.tree ul{list-style:none;margin:0;padding:0}
.tree li{margin:0}
.node{display:flex;align-items:baseline;gap:6px;padding:1px 14px 1px calc(14px + var(--d,0) * 18px);cursor:pointer;white-space:nowrap}
.node:hover{background:#f8fafc}
.node.is-selected{background:#dbeafe}
.node:focus-visible{outline:2px solid var(--blue);outline-offset:-2px}
.tw{display:inline-block;width:14px;flex:none;color:#64748b;text-align:center;font-family:Inter,system-ui,sans-serif;font-size:11px}
.nk{color:#7c2d12;font-weight:600}
.ni{color:#64748b}
.nv{color:#0f172a;overflow:hidden;text-overflow:ellipsis}
.nv.t-s{color:#047857}
.nv.t-n{color:#1d4ed8}
.nv.t-b{color:#7c3aed}
.nv.t-z{color:#64748b;font-style:italic}
.nt{font-family:Inter,system-ui,sans-serif;font-size:11.5px;color:#475569;background:#f1f5f9;border-radius:6px;padding:0 6px}
.nalias{font-family:Inter,system-ui,sans-serif;font-size:11.5px;color:#92400e}
.tree .load-more{margin:4px 0 4px calc(34px + var(--d,0) * 18px);font-size:12px;padding:2px 8px}

@media(max-width:1100px){
  .grid{grid-template-columns:1fr}
  .editor textarea{height:40vh}
}

@media(max-width:760px){
  header{align-items:flex-start;flex-direction:column}
  .options{gap:10px}
  .reading .rl{min-width:0;flex-basis:100%}
}

@media(max-width:640px){
  .app{padding:14px}
  .editor textarea,.editor .hl{padding:12px 13px}
  .editor textarea{height:36vh}
  .seg{padding:6px 9px}
  .tree-bar .row-actions{margin-left:0}
  .occ .snippet{max-width:100%}
}