:root{
  --bg:#eef2f7;
  --panel:#fff;
  --ink:#172033;
  --muted:#64748b;
  --muted-on-tint:#475569;
  --line:#dbe3ed;
  --blue:#2563eb;
  --editor:#0f172a;
  --editor-ink:#e2e8f0;

  --ok:#047857;
  --ok-bg:#ecfdf5;
  --bad:#b91c1c;
  --bad-bg:#fef2f2;
  --warn:#92400e;
  --warn-bg:#fffbeb;
  --tip:#1e40af;
  --tip-bg:#eff6ff;

  --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:#475569;
  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;align-items:center}

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}
.hint{color:#475569;font-size:12.5px;margin:0}
.hint.pad{padding:8px 14px 12px}
.foot{text-align:center;margin-top:4px}

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

.options{padding:12px 16px;gap:10px}
.opt-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px}
.opt-group{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px}
.opt-label{font-size:13px;font-weight:700;color:#334155}
.dir-info{font-size:13px;color:#475569}

.viewswitch{display:flex;gap:0;flex-wrap:wrap}
.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%;
}
.sample-pick select{padding:8px 10px;border-radius:10px;font-weight:750}
.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}
.is-auto-note{font-weight:500;color:#475569}

/* ---------- 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{
  display:block;
  word-break:break-all;
  width:100%;
  height:44vh;
  min-height:220px;
  margin:0;
  border:0;
  padding:16px 19px;
  resize:vertical;
  background:transparent;
  color:var(--editor-ink);
  caret-color:#f8fafc;
  font:13px/1.65 var(--mono);
  tab-size:4;
  white-space:pre;
  overflow:auto;
  font-variant-ligatures:none;
}
.editor textarea::placeholder{color:#94a3b8}
.editor textarea::selection{background:#3b82f6aa;color:#fff}
.editor.drag-over{box-shadow:inset 0 0 0 2px #60a5fa}

.status{font-size:13px;font-weight:650;color:#475569;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)}
.msg{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:2px 8px;
  padding:8px 11px;
  border-radius:9px;
  font-size:13px;
  line-height:1.45;
  background:var(--bad-bg);
  color:var(--bad);
}
.msg .icon{font-weight:800}
.msg .where{font-weight:750;margin-right:6px;font-variant-numeric:tabular-nums}
.msg .tip{grid-column:2;color:#7f1d1d}
.msg .acts{grid-column:2;display:flex;gap:6px;flex-wrap:wrap;margin-top:4px}

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

/* ---------- 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:#475569;
  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-bad{background:var(--bad-bg);color:var(--bad)}
.count.is-warn{background:var(--warn-bg);color:var(--warn)}
.tab[aria-selected="true"] .count{background:#dbeafe;color:#1e3a8a}
.tab[aria-selected="true"] .count.is-bad{background:var(--bad-bg);color:var(--bad)}
.tabpanel:focus-visible{outline:2px solid var(--blue);outline-offset:-2px}

/* ---------- Code ---------- */

.code-actions{margin-left:auto}
.code{
  margin:0;
  padding:14px 18px;
  background:var(--editor);
  color:var(--editor-ink);
  font:12.5px/1.6 var(--mono);
  overflow:auto;
  max-height:62vh;
  tab-size:4;
}
.code:focus-visible{outline:2px solid #60a5fa;outline-offset:-2px}
.code-warn{padding:10px 14px;background:var(--warn-bg);color:var(--warn);font-size:13px;border-bottom:1px solid var(--line)}
.code-warn ul{margin:4px 0 0;padding-left:18px}
.code-warn.is-off{background:#f1f5f9;color:#334155}

@media(max-width:1100px){
  .grid{grid-template-columns:1fr}
  .editor textarea{height:36vh}
}


.table-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:10px 14px;border-bottom:1px solid var(--line)}
.info-line{font-size:13px;color:#475569;margin-left:auto;font-variant-numeric:tabular-nums}

.editor textarea{white-space:pre-wrap}
.editor.is-file textarea{display:none}
.file-banner{display:flex;align-items:center;gap:10px;justify-content:space-between;flex-wrap:wrap;padding:12px 14px;background:#eff6ff;color:#1e3a8a;font-size:13.5px;border-bottom:1px solid var(--line)}
.file-banner b{font-weight:750}
.file-drop{min-height:180px;display:flex;align-items:center;justify-content:center;color:#cbd5e1;font-size:14px;padding:20px;text-align:center}

/* ---------- Meldungen unter der Eingabe ---------- */
.msg.is-warn{background:var(--warn-bg);color:var(--warn)}
.msg.is-warn .tip{color:#78350f}
.msg.is-info{background:#f1f5f9;color:#334155}
.msg.is-info .tip{color:#334155}

/* ---------- Zertifikate ---------- */
.chain-box:empty{display:none}
.chain-box{padding:12px 14px;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.chain{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px}
.chain .node{border:1px solid var(--line);border-radius:9px;padding:3px 9px;background:#fff;font-weight:650;max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chain .node.ok{border-color:#86efac;background:var(--ok-bg);color:var(--ok)}
.chain .node.bad{border-color:#fca5a5;background:var(--bad-bg);color:var(--bad)}
.chain .arrow{color:#475569}
.certs{padding:4px 0 10px}
.cert{border-bottom:1px solid #eef2f6;padding:14px}
.cert:last-child{border-bottom:0}
.cert-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 10px;margin-bottom:6px}
.cert-head h2{margin:0;font-size:16px;line-height:1.35;word-break:break-word}
.cert-num{font-size:12px;font-weight:800;color:#475569}
.kind{font-size:11.5px;font-weight:800;border-radius:999px;padding:1px 8px;background:#eff6ff;color:#1e3a8a}
.state{font-size:11.5px;font-weight:800;border-radius:999px;padding:1px 8px}
.state.ok{background:var(--ok-bg);color:var(--ok)}
.state.bad{background:var(--bad-bg);color:var(--bad)}
.state.warn{background:var(--warn-bg);color:var(--warn)}
.state.info{background:#f1f5f9;color:#334155}
.link{font-size:13px;color:#334155}
.fields{display:grid;grid-template-columns:minmax(150px,220px) minmax(0,1fr);gap:4px 14px;margin:8px 0 4px;font-size:13.5px}
.fields dt{color:#475569;font-weight:650}
.fields dd{margin:0;min-width:0;word-break:break-word}
.fields code,.mono{font-family:var(--mono);font-size:12.5px}
.fields .sub{color:#475569;font-size:12.5px}
.chips{display:flex;flex-wrap:wrap;gap:4px}
.chip{border-radius:7px;background:#f1f5f9;padding:1px 7px;font-size:12.5px}
.chip b{font-weight:700;color:#475569;margin-right:4px}
.fp{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.fp code{word-break:break-all}
.fp button{padding:1px 8px;font-size:12px;border-radius:7px}
.cfind{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:4px}
.cfind li{font-size:13px;display:flex;gap:8px;align-items:baseline}
.cfind .f-sev{flex:none}
.f-sev{font-size:11.5px;font-weight:800;border-radius:999px;padding:0 8px;white-space:nowrap}
.f-sev.error{background:var(--bad-bg);color:var(--bad)}
.f-sev.warn{background:var(--warn-bg);color:var(--warn)}
.f-sev.info{background:#f1f5f9;color:#334155}
.cfind b{font-weight:750}
.cert details{margin-top:6px}
.cert summary{cursor:pointer;font-size:13px;font-weight:700;color:#1e40af}
.sub-certs{margin-top:8px;border-left:3px solid #dbeafe;padding-left:10px}

/* ---------- ASN.1-Baum ---------- */
.asn-tree{padding:8px 14px 14px;font:12.5px/1.6 var(--mono);max-height:62vh;overflow:auto}
.asn-tree details{margin-left:16px}
.asn-tree > details{margin-left:0}
.asn-tree summary{cursor:pointer;white-space:nowrap;list-style:none}
.asn-tree summary::-webkit-details-marker{display:none}
.asn-tree summary::before{content:'▸';display:inline-block;width:14px;color:#475569}
.asn-tree details[open] > summary::before{content:'▾'}
.asn-tree .leaf{margin-left:16px;white-space:nowrap;padding-left:14px}
.asn-tree .t{color:#1e40af;font-weight:700}
.asn-tree .o{color:#475569}
.asn-tree .v{color:#0f172a;margin-left:6px;white-space:pre-wrap;word-break:break-all}
.asn-tree .more{margin-left:30px;color:#475569}

@media(max-width:700px){
  .app{padding:12px}
  header{flex-direction:column;align-items:flex-start}
  .fields{grid-template-columns:1fr}
  .fields dt{margin-top:6px}
  .info-line{margin-left:0;flex-basis:100%}
}