:root{
  --bg:#eef2f7;--panel:#fff;--ink:#172033;--muted:#64748b;--muted2:#475569;--line:#dbe3ed;--line2:#eef2f6;
  --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;
  --req:#1d4ed8;--prov:#64748b;--succ:#047857;--redir:#92400e;--fail:#b91c1c;--rtp:#7c3aed;
  --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(--muted2);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;flex-wrap:wrap}
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);text-decoration:none;display:inline-flex;align-items:center;gap:6px}
button:hover,.button:hover{border-color:#93c5fd}
button:disabled{cursor:default;opacity:.45}
button:disabled:hover{border-color:var(--line)}
button.small,.button.small{padding:5px 10px;font-size:13px;border-radius:8px}
button.tiny{padding:2px 7px;font-size:12px;border-radius:7px;font-weight:700}
.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.primary:hover{border-color:var(--blue)}
:focus-visible{outline:3px solid #93c5fd;outline-offset:2px}

.tabs{display:inline-flex;gap:4px;flex-wrap:wrap}
.tab{border:0;background:transparent;color:var(--muted2);padding:8px 12px;border-radius:10px;font-weight:750}
.tab[aria-selected="true"]{background:var(--tip-bg);color:var(--tip)}
.tab .cnt{display:inline-block;min-width:20px;padding:0 6px;border-radius:999px;background:#e2e8f0;color:var(--ink);font-size:12px;margin-left:4px}
.tab .cnt.bad{background:var(--bad-bg);color:var(--bad)}

.panel{margin-bottom:17px;overflow:hidden}
.panel-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:11px 16px;border-bottom:1px solid var(--line)}
.panel-head h2{margin:0;font-size:15.5px}
.head-actions{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.panel-body{padding:14px 16px}
.sub{color:var(--muted2);font-size:13px}
.hint{color:var(--muted2);font-size:13px}
.foot{text-align:center;margin:8px 0 0}
.mono{font-family:var(--mono)}

/* Eingabe */
.in-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:0}
.drop{margin:14px 16px;border:2px dashed #cbd5e1;border-radius:14px;padding:22px 16px;text-align:center;transition:border-color .15s,background .15s}
.drop.is-over{border-color:var(--blue);background:var(--tip-bg)}
.drop strong{font-size:15.5px}
.drop p{margin:6px 0 0;color:var(--muted2);font-size:13px}
.drop .row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:10px}
.paste{padding:14px 16px;border-left:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.plain-ta{width:100%;border:1px solid var(--line);border-radius:12px;background:var(--editor);color:var(--editor-ink);font:12.5px/1.5 var(--mono);padding:10px 12px;resize:vertical;min-height:120px}
.plain-ta::placeholder{color:#94a3b8}
.opts{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;padding:10px 16px;border-top:1px solid var(--line);font-size:13.5px}
.opts label{display:inline-flex;align-items:center;gap:6px}
select,input[type=text],input[type=search],input[type=date],input[type=number],input[type=password]{border:1px solid var(--line);border-radius:9px;padding:6px 9px;font:inherit;font-size:13.5px;background:#fff;color:var(--ink)}
input[type=search]{min-width:220px}
.src-list{list-style:none;margin:0;padding:8px 16px 12px;font-size:13.5px;border-top:1px solid var(--line)}
.src-list li{padding:3px 0}
.src-list .warn{color:var(--warn)}
.status-line{padding:8px 16px;font-size:13.5px;color:var(--muted2);border-top:1px solid var(--line)}
.status-line progress{width:160px;vertical-align:middle;margin-left:8px}

/* Meldungen */
.msg{display:flex;gap:8px;align-items:flex-start;border-radius:10px;padding:8px 11px;margin:6px 0;font-size:13.5px}
.msg-error{background:var(--bad-bg);color:var(--bad)}
.msg-warn{background:var(--warn-bg);color:var(--warn)}
.msg-info{background:var(--tip-bg);color:var(--tip)}
.msg-ok{background:var(--ok-bg);color:var(--ok)}
.msg .ic{font-weight:800;flex:none;width:16px;text-align:center}
.msg a{color:inherit}

/* Tabellen */
.tbl-wrap{overflow:auto;max-height:620px;position:relative}
.tbl{border-collapse:collapse;width:100%;font-size:13px}
.tbl th,.tbl td{border-bottom:1px solid var(--line2);padding:6px 8px;text-align:left;vertical-align:top}
.tbl thead th{font-size:12px;color:var(--muted2);font-weight:750;border-bottom:1px solid var(--line);white-space:nowrap;position:sticky;top:0;background:#fff;z-index:1}
.tbl td.num,.tbl th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.tbl td.nw{white-space:nowrap}
.tbl tbody tr{cursor:pointer}
.tbl tbody tr:hover td{background:#f8fafc}
.tbl tbody tr.is-sel td{background:var(--tip-bg)}
.tbl td.mono{font-family:var(--mono);font-size:12px}
.tbl .chk{width:28px}
.badge{display:inline-block;border-radius:999px;padding:1px 8px;font-size:12px;font-weight:750;white-space:nowrap}
.b-ok{background:var(--ok-bg);color:var(--ok)}
.b-bad{background:var(--bad-bg);color:var(--bad)}
.b-warn{background:var(--warn-bg);color:var(--warn)}
.b-info{background:#f1f5f9;color:var(--muted2)}
.b-tip{background:var(--tip-bg);color:var(--tip)}
.lvl{display:inline-block;width:18px;text-align:center;font-weight:800}
.lvl-error{color:var(--bad)}.lvl-warn{color:var(--warn)}.lvl-info{color:var(--tip)}
.empty{padding:14px 16px;margin:0;color:var(--muted2);font-size:13.5px}
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center;padding:10px 16px;border-bottom:1px solid var(--line);font-size:13.5px}
.filters .seg-wrap{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.seg{border:0;border-radius:0;padding:6px 11px;font-size:13px;background:#fff;color:var(--muted2)}
.seg+.seg{border-left:1px solid var(--line)}
.seg.is-active{background:var(--tip-bg);color:var(--tip)}

/* Ablauf */
.flow-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);min-height:420px}
.ladder-wrap{overflow:auto;max-height:78vh;border-right:1px solid var(--line);position:relative}
.ladder{display:block}
.ladder .row{cursor:pointer}
.ladder .row:hover .bgr{fill:#f1f5f9}
.ladder .row.is-sel .bgr{fill:#dbeafe}
.ladder text{font-family:Inter,system-ui,sans-serif}
.ladder:focus{outline:none}
.ladder:focus-visible{outline:3px solid #93c5fd;outline-offset:-3px}
.detail{overflow:auto;max-height:78vh;padding:12px 14px}
.detail h3{margin:2px 0 6px;font-size:15px}
.detail .meta{font-size:12.5px;color:var(--muted2);margin-bottom:8px;display:flex;flex-wrap:wrap;gap:2px 12px}
.detail .meta span{white-space:nowrap;overflow-wrap:anywhere}
.detail .meta span:nth-child(2){white-space:normal}
.sipmsg{margin:0;background:var(--editor);color:var(--editor-ink);border-radius:12px;padding:10px 12px;font:12px/1.55 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere}
.sipmsg .sl{color:#fff;font-weight:700}
.sipmsg .hn{color:#93c5fd}
.sipmsg .hn.k{color:#fcd34d}
.sipmsg .sd{color:#a7f3d0}
.sipmsg .sdk{color:#6ee7b7;font-weight:700}
.sipmsg .err{background:#7f1d1d}
.expl{margin:10px 0 0;font-size:13px}
.expl table{border-collapse:collapse;width:100%}
.expl td{border-bottom:1px solid var(--line2);padding:4px 6px;vertical-align:top}
.expl td:first-child{font-family:var(--mono);font-size:12px;white-space:nowrap;color:var(--muted2)}
.kv{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:3px 12px;font-size:13px;margin:6px 0}
.kv dt{color:var(--muted2)}
.kv dd{margin:0;overflow-wrap:anywhere}
.call-head{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:baseline;padding:10px 16px;border-bottom:1px solid var(--line);font-size:13.5px}
.call-head strong{font-size:15px}
.legs{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.hint-list{list-style:none;margin:0;padding:0}
.hint-list li{display:flex;gap:8px;padding:7px 0;border-bottom:1px solid var(--line2);font-size:13.5px}
.hint-list li:last-child{border-bottom:0}
.hint-list .more{color:var(--muted2);font-size:12.5px;display:block}
.hint-list a{color:var(--blue);cursor:pointer;text-decoration:underline}

/* RTP */
.rtp-tools{display:flex;gap:6px;flex-wrap:wrap}
.chart-box{padding:10px 16px;border-top:1px solid var(--line)}
.chart-box canvas{width:100%;height:180px;display:block}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--muted2);margin-top:4px}
.legend i{display:inline-block;width:12px;height:3px;border-radius:2px;margin-right:5px;vertical-align:middle}
.lg-j{background:#7c3aed}.lg-d{background:#94a3b8}.lg-l{background:#b91c1c}
.player{display:flex;align-items:center;gap:10px;margin-top:8px;max-width:620px}
.player input[type=range]{flex:1;min-width:80px;accent-color:var(--blue)}
.mos{font-weight:800}
.mos-g{color:var(--ok)}.mos-m{color:var(--warn)}.mos-b{color:var(--bad)}
.dtmf{font-family:var(--mono);letter-spacing:1px}

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

@media(max-width:980px){
  .flow-grid{grid-template-columns:1fr}
  .ladder-wrap{border-right:0;border-bottom:1px solid var(--line);max-height:60vh}
  .detail{max-height:none}
}
@media(max-width:800px){
  .in-grid{grid-template-columns:1fr}
  .paste{border-left:0;border-top:1px solid var(--line)}
  .app{padding:12px}
  header{padding:12px 14px}
  input[type=search]{min-width:0;width:100%}
  .filters>*{flex:1 1 auto}
}

/* ===================== SIP-Tester ===================== */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px 16px;padding:14px 16px}
.fld{display:flex;flex-direction:column;gap:3px;font-size:13px}
.fld>span{color:var(--muted2);font-weight:650}
.fld input,.fld select,.fld textarea{border:1px solid var(--line);border-radius:9px;padding:7px 9px;font:inherit;font-size:13.5px;background:#fff;color:var(--ink)}
.fld textarea{font-family:var(--mono);font-size:12.5px;min-height:70px;resize:vertical}
.fld.wide{grid-column:1/-1}
.fld.chk{flex-direction:row;align-items:center;gap:7px}
.fieldset{border:1px solid var(--line);border-radius:12px;margin:0 16px 12px;padding:4px 0 6px}
.fieldset>legend{font-weight:750;font-size:13px;padding:0 8px;margin-left:8px;color:var(--ink)}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0}
.two>*{min-width:0}
.preview-col{border-left:1px solid var(--line);display:flex;flex-direction:column}
.preview-head{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid var(--line)}
.preview-head h2{margin:0;font-size:14px}
.preview-head .head-actions{margin-left:auto}
.codecs-list{display:flex;flex-direction:column;gap:5px;padding:4px 16px 8px}
.codec-row{display:flex;gap:6px;align-items:center;font-size:13px}
.codec-row input[type=text]{width:56px}
.codec-row .nm{flex:1}
.sdp-opts{display:flex;flex-wrap:wrap;gap:8px 14px;padding:4px 16px 10px;font-size:13px;align-items:center}
.check-box{padding:10px 16px}
.digest-steps{padding:8px 16px;font-size:12.5px}
.digest-steps table{border-collapse:collapse;width:100%}
.digest-steps td{border-bottom:1px solid var(--line2);padding:4px 6px;vertical-align:top}
.digest-steps td:first-child{color:var(--muted2);white-space:nowrap}
.digest-steps td:last-child{font-family:var(--mono);font-size:11.5px;overflow-wrap:anywhere}
.cmd-block{margin:0 16px 14px}
.cmd-block h3{font-size:14px;margin:12px 0 4px;display:flex;align-items:center;gap:8px}
.cmd-block h3 .sub{font-weight:400}
.cmd-block pre{margin:0;background:var(--editor);color:var(--editor-ink);border-radius:12px;padding:10px 12px;font:12px/1.5 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;position:relative}
.cmd-block .copy{position:absolute;top:6px;right:6px}
.conn-bar{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;padding:12px 16px}
.dot{width:10px;height:10px;border-radius:50%;background:#cbd5e1;display:inline-block;margin-right:6px;vertical-align:middle}
.dot.on{background:#22c55e}.dot.busy{background:#f59e0b}.dot.off{background:#ef4444}
.ws-log{display:flex;flex-direction:column;gap:0;max-height:52vh;overflow:auto;padding:0 16px 12px}
.ws-msg{border-bottom:1px solid var(--line2);padding:7px 0;cursor:pointer;font-size:12.5px}
.ws-msg:hover{background:#f8fafc}
.ws-msg .hd{display:flex;gap:8px;align-items:baseline}
.ws-msg .dir{font-weight:800;width:16px;flex:none}
.ws-msg .dir.tx{color:var(--req)}.ws-msg .dir.rx{color:var(--succ)}
.ws-msg .ln{font-weight:650}
.ws-msg .tm{color:var(--muted2);font-size:11.5px;margin-left:auto;font-family:var(--mono)}
.ws-msg pre{display:none;margin:6px 0 0;background:var(--editor);color:var(--editor-ink);border-radius:10px;padding:8px 10px;font:11.5px/1.5 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere}
.ws-msg.open pre{display:block}
.dialpad{display:grid;grid-template-columns:repeat(3,64px);gap:8px;justify-content:center;padding:10px 0}
.dialpad button{height:52px;font-size:18px;font-weight:700}
.phone-wrap{max-width:420px;margin:0 auto;padding:16px;text-align:center}
.phone-disp{font-family:var(--mono);font-size:22px;min-height:30px;border:1px solid var(--line);border-radius:10px;padding:8px;margin-bottom:8px;overflow:hidden;text-overflow:ellipsis}
.call-state{font-weight:750;margin:8px 0;min-height:22px}
.call-state.ring{color:var(--warn)}.call-state.up{color:var(--ok)}.call-state.fail{color:var(--bad)}
.phone-actions{display:flex;gap:8px;justify-content:center;margin-top:8px}
.btn-call{background:#16a34a;border-color:#16a34a;color:#fff}
.btn-hang{background:#dc2626;border-color:#dc2626;color:#fff}
.warnbox{margin:12px 16px}
@media(max-width:860px){ .two{grid-template-columns:1fr} .preview-col{border-left:0;border-top:1px solid var(--line)} }

.fld.inline{flex-direction:row;align-items:center;gap:6px}
.mt{margin-top:12px}
.sipmsg.pv{margin:12px 14px}
.w-url{min-width:280px}
.pad-cx{padding:0 16px 8px}
.fld.pad-h{padding:6px 16px}
.tpl-desc{padding:8px 16px 0;margin:0}
.w-sm{width:100px}.w-md{width:130px}.w-lg{width:170px}.w-xs{width:50px}.w-sm2{width:70px}