/* Entek Elektronik · Batarya Empedans Simülatörü */
.eis-app{--navy:#0b2545;--navy2:#13315c;--acc:#0ea5c6;--blue:#1d6fb8;--bg:#f4f6f9;--line:#dfe4ea;--txt:#1b2430;--mut:#5b6675;--warn:#a15c00;
  color:var(--txt);font-family:Inter,"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:15px;line-height:1.5}
.eis-app *{box-sizing:border-box}
.eis-intro h1{font-size:clamp(24px,3vw,32px);color:var(--navy);margin:0 0 8px;letter-spacing:-.01em}
.eis-intro p{max-width:860px;color:var(--mut);margin:0 0 8px}
.eis-app section.eis-sec{margin:28px 0;padding:0}
.eis-sec h2{display:flex;align-items:center;gap:10px;font-size:19px;color:var(--navy);margin:0 0 6px}
.eis-n{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--navy);color:#fff;font-size:14px;font-weight:600}
.eis-sub{color:var(--mut);margin:0 0 14px;font-size:14px}
.eis-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:14px}
.eis-card h3{font-size:15px;margin:0 0 10px;color:var(--navy)}
.eis-h3row{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.eis-h3row h3{margin:0}
.eis-note{color:var(--mut);font-size:13px;margin:8px 0 0}
.eis-warn{color:var(--warn);font-size:13px;background:#fff6e8;border:1px solid #f1d6a8;border-radius:6px;padding:8px 10px}
.eis-err{color:#b3261e}
.eis-mono,.eis-app code{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px}

/* kimya kartları */
.eis-chems{display:grid;grid-template-columns:repeat(auto-fill,minmax(205px,1fr));gap:10px}
.eis-chem{display:flex;flex-direction:column;gap:6px;text-align:left;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px;cursor:pointer;font:inherit;color:inherit;transition:border-color .15s,box-shadow .15s,background .15s}
.eis-chem:hover{border-color:#9fb3c8}
.eis-chem:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.eis-chem.on{border-color:var(--acc);background:#f0fafd;box-shadow:0 0 0 1px var(--acc) inset}
.eis-chem svg{width:34px;height:34px;fill:none;stroke:var(--navy);stroke-width:2;stroke-linejoin:round}
.eis-chem.on svg{stroke:var(--blue)}
.eis-chem-t b{display:block;font-size:14.5px;color:var(--navy)}
.eis-chem-t span{font-size:12.5px;color:var(--mut)}
.eis-chem-d{font-size:12.5px;color:#3a4552;flex:1}
.eis-chem code{color:var(--blue);font-size:11.5px;word-break:break-all}

/* çalışma alanı */
.eis-work{display:grid;grid-template-columns:minmax(330px,420px) minmax(0,1fr);gap:16px;align-items:start}
.eis-main{min-width:0}
@media (max-width:1000px){.eis-work{grid-template-columns:minmax(0,1fr)}}
.eis-side{position:sticky;top:84px;max-height:calc(100vh - 96px);overflow:auto;padding-right:2px}
@media (max-width:1000px){.eis-side{position:static;max-height:none;overflow:visible}}
.eis-lab{display:flex;flex-direction:column;gap:4px;font-size:12.5px;color:var(--mut);margin-bottom:10px}
.eis-app input[type=text],.eis-app select,.eis-app textarea{font:inherit;font-size:14px;color:var(--txt);border:1px solid #c9d2dc;border-radius:6px;padding:6px 8px;background:#fff;min-width:0}
.eis-app input[type=text]:focus,.eis-app select:focus,.eis-app textarea:focus{outline:2px solid var(--acc);outline-offset:-1px;border-color:transparent}
.eis-circ{font-family:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace!important}
.eis-app textarea{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;resize:vertical}
.eis-circ-st{font-size:12.5px;margin:-4px 0 8px}
.eis-circ-st.ok{color:#13805f}.eis-circ-st.ok::before{content:"✓ "}
.eis-circ-st.err{color:#b3261e}
.eis-help{font-size:13px;color:var(--mut);margin-bottom:8px}
.eis-help summary{cursor:pointer}
.eis-help p{margin:6px 0}
.eis-diagram{overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:#fbfcfd;padding:6px}
.eis-diagram svg{display:block;width:100%;height:auto;margin:auto}
.eis-el{cursor:pointer}
.eis-el:hover rect[fill=transparent],.eis-el:focus rect[fill=transparent]{fill:rgba(14,165,198,.10)}
.eis-el:focus{outline:none}
.eis-elab{font-size:11px;font-weight:600;stroke:none;font-family:inherit}
.eis-esym{font-size:9.5px;font-weight:700;stroke:none;font-family:inherit}

/* koşullar */
.eis-cond{display:grid;grid-template-columns:132px 1fr 62px;align-items:center;gap:8px;margin:4px 0;font-size:13px}
.eis-cond.off{opacity:.45}
.eis-cond output{text-align:right;font-variant-numeric:tabular-nums;font-weight:600;color:var(--navy)}

/* parametreler */
.eis-blk{border-left:3px solid var(--c);padding:6px 0 4px 10px;margin:0 0 12px}
.eis-blk-h{display:flex;align-items:baseline;gap:6px;flex-wrap:wrap;font-size:13px}
.eis-blk-h b{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;color:var(--c)}
.eis-blk-h span{color:var(--mut)}
.eis-dot{width:9px;height:9px;border-radius:50%;background:var(--c);display:inline-block;align-self:center}
.eis-blk-i{font-size:12px;color:var(--navy2);margin:2px 0 4px;font-variant-numeric:tabular-nums}
.eis-blk-i:empty{display:none}
.eis-prow{display:grid;grid-template-columns:54px minmax(60px,1fr) 128px 26px;align-items:center;gap:6px;padding:3px 4px;border-radius:6px}
.eis-prow.flash{animation:eisflash 1.2s ease}
@keyframes eisflash{0%,40%{background:rgba(14,165,198,.18)}100%{background:transparent}}
.eis-pl{font-size:13px;font-weight:600;font-family:ui-monospace,Menlo,Consolas,monospace;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.eis-inu{display:flex;align-items:center;gap:4px;min-width:0}
.eis-inu input{width:100%;font-variant-numeric:tabular-nums;padding:4px 6px!important;font-size:13px!important}
.eis-inu > span{font-size:12px;color:var(--mut);white-space:nowrap}
.eis-pu{min-width:42px}
.eis-inu2 input{width:72px}
.eis-app input[type=range]{width:100%;accent-color:var(--blue);margin:0;min-width:0}
.eis-lock{display:grid;place-items:center;cursor:pointer;width:26px;height:26px;border-radius:5px}
.eis-lock input{position:absolute;opacity:0;width:1px;height:1px}
.eis-lock svg{width:15px;height:15px;stroke:#9aa5b1;stroke-width:1.4;fill:none}
.eis-lock:hover{background:#eef2f6}
.eis-lock input:focus-visible+svg{outline:2px solid var(--acc);outline-offset:3px;border-radius:2px}
.eis-prow.locked .eis-lock svg{stroke:var(--navy);fill:rgba(11,37,69,.12)}
.eis-prow.locked input[type=range]{opacity:.55}
.eis-frow{display:flex;gap:10px;flex-wrap:wrap}
.eis-frow .eis-lab{flex:1 1 110px}

/* grafikler */
.eis-pcard{padding:12px 12px 8px}
.eis-ptool{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:6px}
.eis-ptool h3{margin:0;margin-right:auto}
.eis-zoom{display:inline-flex;gap:4px}
.eis-chk{display:inline-flex;align-items:center;gap:6px;font-size:13px;cursor:pointer}
.eis-chk input{accent-color:var(--blue)}
.eis-svg{display:block;width:100%;height:auto;user-select:none;-webkit-user-select:none;touch-action:pan-y}
.eis-svg text{font-size:11px;fill:#3a4552;font-family:inherit}
.eis-svg .eis-atitle{font-size:12px;fill:var(--txt);font-weight:500}
.eis-g1{stroke:#e6eaef}.eis-g2{stroke:#f2f4f7}.eis-g0{stroke:#9aa5b1}
.eis-svg .eis-flab{font-size:10px;fill:var(--navy);font-weight:600;paint-order:stroke;stroke:#fff;stroke-width:3px}
.eis-cross{stroke:#9aa5b1;stroke-dasharray:3 3}
.eis-nyq{cursor:crosshair}.eis-nyq.grab{cursor:grabbing}
.eis-bodes{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:1240px){.eis-bodes{grid-template-columns:1fr}}
.eis-bodes .eis-card{margin-bottom:14px}
.eis-legend{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:12px;color:var(--mut);margin-top:4px}
.eis-legend span{display:inline-flex;align-items:center;gap:6px}
.eis-legend i,.eis-pins i{display:inline-block;width:20px;height:0;border-top:2.5px solid;border-color:inherit}
.eis-legend i:not(.d):not(.o){height:3px;border:0;border-radius:2px}
.eis-legend i.d,.eis-pins i{border-top-style:dashed;border-top-width:2px}
.eis-legend i.o{width:9px;height:9px;border:1.5px solid #2a2f36;border-radius:50%;background:#fff}
.eis-readout{font-size:12.5px;font-variant-numeric:tabular-nums;color:var(--navy2);min-height:20px;margin-top:6px;padding:4px 8px;background:var(--bg);border-radius:6px}
.eis-ro-h{color:var(--mut)}
.eis-ro-m{color:#2a2f36;margin-left:6px}
.eis-sweep{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;margin:4px 0 8px}
.eis-pins{list-style:none;margin:0;padding:0;font-size:13px}
.eis-pins li{display:flex;align-items:center;gap:8px;padding:3px 0}
.eis-pins li span{flex:1}
.eis-x{border:0;background:none;font-size:17px;line-height:1;color:var(--mut);cursor:pointer;padding:0 6px;border-radius:4px}
.eis-x:hover{background:#eef2f6;color:var(--txt)}

/* düğmeler */
.eis-btn{font:inherit;font-weight:600;font-size:14px;border:1px solid var(--navy);background:var(--navy);color:#fff;border-radius:7px;padding:9px 16px;cursor:pointer;transition:background .15s}
.eis-btn:hover{background:var(--navy2)}
.eis-btn:disabled{opacity:.6;cursor:progress}
.eis-btn:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.eis-btn-s{font-size:13px;padding:5px 11px}
.eis-btn-g{background:#fff;color:var(--navy);border-color:#c9d2dc}
.eis-btn-g:hover{background:#f2f5f8}
.eis-btn-a{background:#fff;color:var(--blue);border-color:var(--blue)}
.eis-btn-a:hover{background:#eef6fc}
.eis-zoom .eis-btn{background:#fff;color:var(--navy);border-color:#c9d2dc;min-width:30px}
.eis-zoom .eis-btn:hover{background:#f2f5f8}
.eis-brow{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0}
.eis-link{border:0;background:none;color:var(--blue);text-decoration:underline;cursor:pointer;font:inherit;padding:0}
.eis-pin,.eis-swbtn{background:#fff;color:var(--navy);border-color:#c9d2dc}
.eis-pin:hover,.eis-swbtn:hover{background:#f2f5f8}

/* veri ve fit */
.eis-fitgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
@media (max-width:900px){.eis-fitgrid{grid-template-columns:1fr}}
.eis-drop{display:flex;flex-direction:column;align-items:center;gap:4px;text-align:center;border:1.5px dashed #a9b7c6;border-radius:10px;padding:20px 12px;cursor:pointer;color:var(--navy);margin-bottom:12px;background:#fbfcfd;transition:background .15s,border-color .15s}
.eis-drop:hover,.eis-drop.over{border-color:var(--acc);background:#f0fafd}
.eis-drop span{font-size:12.5px;color:var(--mut)}
.eis-drop input{position:absolute;opacity:0;width:1px;height:1px}
.eis-drop:focus-within{outline:2px solid var(--acc);outline-offset:2px}
.eis-fitbtn{margin-top:10px;width:100%}
.eis-fitres{margin-top:10px}
.eis-tablewrap{overflow-x:auto}
.eis-table{width:100%;border-collapse:collapse;font-size:13.5px}
.eis-table th{text-align:left;font-size:12px;color:var(--mut);font-weight:600;border-bottom:1px solid var(--line);padding:6px 8px}
.eis-table td{border-bottom:1px solid #eef1f4;padding:6px 8px;vertical-align:top}
.eis-num{font-variant-numeric:tabular-nums;white-space:nowrap}
.eis-ftab td:first-child{font-family:ui-monospace,Menlo,Consolas,monospace}
.eis-notations{display:flex;flex-direction:column;gap:6px;margin-top:8px;font-size:13px}
.eis-notations div{display:flex;gap:10px;flex-wrap:wrap;align-items:baseline}
.eis-notations span{color:var(--mut);min-width:140px}
.eis-notations code{background:var(--bg);padding:2px 8px;border-radius:5px;word-break:break-all}
.eis-notes{font-size:13.5px;color:#3a4552;padding-left:18px}
.eis-notes li{margin:4px 0}
.eis-disc{border-top:1px solid var(--line);padding-top:10px}
.eis-toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:var(--navy);color:#fff;padding:8px 16px;border-radius:8px;font-size:13.5px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:50}
.eis-toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
@media (max-width:560px){
  .eis-prow{grid-template-columns:48px minmax(50px,1fr) 112px 24px;gap:4px}
  .eis-cond{grid-template-columns:110px 1fr 54px}
  .eis-card{padding:12px}
}
@media (prefers-reduced-motion:reduce){.eis-app *{transition:none!important;animation:none!important}}