/* SPS-Trainer – Styles (eigene Gestaltung, keine fremden Assets) */
:root{
  --bg:#eef2f5; --panel:#ffffff; --panel2:#f6f8fa; --line:#d6dee4; --line2:#e7ecf0; --text:#17252e; --muted:#5b6b76; --faint:#8a99a3;
  --head:#11303b; --head2:#18414f; --accent:#0a8079; --accent-d:#06625d; --accent-l:#e2f4f2; --blue:#1d6fb8;
  --ok:#16a34a; --ok-l:#dcfce7; --warn:#d97706; --warn-l:#fef3c7; --err:#dc2626; --err-l:#fee2e2;
  --pow:#16b34a; --nopow:#4b7fd1; --sel:#f59e0b;
  --r:12px; --r-s:8px; --sh:0 1px 2px rgba(16,40,52,.06),0 4px 14px rgba(16,40,52,.06);
  --safe-b:env(safe-area-inset-bottom,0px); --safe-t:env(safe-area-inset-top,0px);
  --nav-h:62px; --top-h:52px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--text);background:var(--bg);-webkit-text-size-adjust:100%;overflow:hidden;overscroll-behavior:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
a{color:var(--accent-d)}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .5em}
h1{font-size:1.55rem} h2{font-size:1.25rem} h3{font-size:1.08rem}
p{margin:.4em 0 .8em}
code,kbd,.mono{font-family:var(--mono);font-size:.92em}
code{background:#eef3f6;border:1px solid var(--line2);border-radius:5px;padding:0 .3em}
kbd{background:#fff;border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:0 .35em}

/* ---- App-Rahmen ---- */
#app{position:fixed;inset:0;display:flex;flex-direction:column}
#topbar{height:calc(var(--top-h) + var(--safe-t));padding-top:var(--safe-t);background:linear-gradient(180deg,var(--head2),var(--head));color:#fff;display:flex;align-items:center;gap:10px;padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right));flex:none;z-index:30;box-shadow:0 1px 0 rgba(0,0,0,.2)}
#topbar .logo{display:flex;align-items:center;gap:8px;font-weight:700;letter-spacing:.2px;text-decoration:none;color:#fff;white-space:nowrap}
#topbar .logo svg{width:28px;height:28px}
#topbar nav{display:none;gap:2px;margin-left:12px}
#topbar nav a{color:#cfe3e8;text-decoration:none;padding:7px 12px;border-radius:8px;font-weight:500;display:flex;align-items:center;gap:6px}
#topbar nav a svg{width:18px;height:18px}
#topbar nav a:hover{background:rgba(255,255,255,.08);color:#fff}
#topbar nav a.on{background:rgba(255,255,255,.14);color:#fff}
.spacer{flex:1}
.cpu-pill{display:flex;align-items:center;gap:7px;border:1px solid rgba(255,255,255,.22);background:rgba(0,0,0,.18);color:#fff;border-radius:999px;padding:5px 11px 5px 9px;font-size:13px;font-weight:600;white-space:nowrap}
.cpu-pill .led{width:10px;height:10px;border-radius:50%;background:#64748b;box-shadow:0 0 0 2px rgba(255,255,255,.12)}
.cpu-pill.run .led{background:#22c55e;box-shadow:0 0 8px #22c55e}
.cpu-pill.stop .led{background:#f59e0b}
.cpu-pill.err .led{background:#ef4444;box-shadow:0 0 8px #ef4444}
.cpu-pill .frc{background:#f59e0b;color:#000;border-radius:4px;padding:0 4px;font-size:11px}
#main{flex:1;position:relative;overflow:hidden}
.view{position:absolute;inset:0;display:none;overflow:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}
.view.on{display:block}
.view.flex.on{display:flex}
.page{max-width:980px;margin:0 auto;padding:18px max(14px,env(safe-area-inset-left)) 28px}
#bottomnav{flex:none;height:calc(var(--nav-h) + var(--safe-b));padding-bottom:var(--safe-b);background:#fff;border-top:1px solid var(--line);display:flex;z-index:30}
#bottomnav a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--muted);text-decoration:none;font-size:11px;font-weight:600;-webkit-tap-highlight-color:transparent}
#bottomnav a svg{width:23px;height:23px}
#bottomnav a.on{color:var(--accent)}
#bottomnav a.on svg{stroke-width:2.4}
@media (min-width:900px){
  #topbar nav{display:flex}
  #bottomnav{display:none}
}
.foot{color:var(--muted);font-size:12.5px;text-align:center;padding:22px 12px 10px;border-top:1px solid var(--line);margin-top:26px}
.foot b{color:var(--text)}

/* ---- Bausteine ---- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:16px}
.card + .card{margin-top:14px}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.g3{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 15px;font-weight:600;min-height:42px;transition:background .15s,border-color .15s,transform .05s;user-select:none;-webkit-user-select:none}
.btn:hover{background:var(--panel2)}
.btn:active{transform:translateY(1px)}
.btn svg{width:18px;height:18px}
.btn.pri{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.pri:hover{background:var(--accent-d)}
.btn.danger{background:var(--err);border-color:var(--err);color:#fff}
.btn.ghost{background:transparent;border-color:transparent}
.btn.sm{min-height:34px;padding:5px 10px;font-size:13.5px;border-radius:8px}
.btn[disabled]{opacity:.45;pointer-events:none}
.btn.ok{background:var(--ok);border-color:var(--ok);color:#fff}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;border:0;background:transparent;color:inherit}
.icon-btn:hover{background:rgba(0,0,0,.06)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.muted{color:var(--muted)} .small{font-size:13px}
.tag{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;padding:2px 8px;border-radius:999px;background:var(--panel2);border:1px solid var(--line);color:var(--muted)}
.tag.ok{background:var(--ok-l);border-color:#bbf7d0;color:#166534}
.tag.warn{background:var(--warn-l);border-color:#fde68a;color:#92400e}
.tag.err{background:var(--err-l);border-color:#fecaca;color:#991b1b}
.tag.acc{background:var(--accent-l);border-color:#b7e3df;color:var(--accent-d)}
.progress{height:8px;background:#e3e9ee;border-radius:99px;overflow:hidden}
.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),#22c55e);border-radius:99px;transition:width .4s}
input[type=text],input[type=number],input:not([type]),select,textarea{border:1px solid var(--line);border-radius:8px;padding:8px 10px;background:#fff;min-height:40px;width:100%;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(10,128,121,.15)}
label.f{display:block;font-size:12.5px;font-weight:600;color:var(--muted);margin:10px 0 4px}
.note{border-left:4px solid var(--accent);background:var(--accent-l);padding:10px 12px;border-radius:0 8px 8px 0;margin:10px 0}
.note.warn{border-color:var(--warn);background:var(--warn-l)}
.note.err{border-color:var(--err);background:var(--err-l)}
.note.ok{border-color:var(--ok);background:var(--ok-l)}
.seg{display:inline-flex;background:#e6ecf0;border-radius:10px;padding:3px;gap:2px}
.seg button{border:0;background:transparent;padding:6px 12px;border-radius:8px;font-weight:600;font-size:13.5px;color:var(--muted)}
.seg button.on{background:#fff;color:var(--text);box-shadow:0 1px 2px rgba(0,0,0,.1)}

/* ---- Toast & Modal ---- */
#toast{position:fixed;left:50%;bottom:calc(var(--nav-h) + var(--safe-b) + 14px);transform:translate(-50%,20px);background:#1f2d36;color:#fff;padding:10px 16px;border-radius:10px;font-weight:500;opacity:0;pointer-events:none;transition:all .2s;z-index:100;max-width:92vw;box-shadow:0 8px 24px rgba(0,0,0,.25)}
#toast.show{opacity:1;transform:translate(-50%,0)}
#toast.err{background:#991b1b} #toast.ok{background:#166534}
@media (min-width:900px){#toast{bottom:24px}}
.modal-back{position:fixed;inset:0;background:rgba(10,25,32,.45);z-index:90;display:flex;align-items:flex-end;justify-content:center;animation:fadeIn .15s}
.modal-back.out{opacity:0;transition:opacity .15s}
.modal{background:#fff;width:100%;max-width:560px;max-height:88vh;max-height:88dvh;border-radius:16px 16px 0 0;display:flex;flex-direction:column;animation:slideUp .2s ease-out;padding-bottom:var(--safe-b)}
.modal.wide{max-width:820px}
.modal-head{display:flex;align-items:center;gap:8px;padding:14px 12px 6px 18px}
.modal-head h3{flex:1;margin:0}
.modal-body{padding:4px 18px 10px;overflow:auto}
.modal-foot{display:flex;gap:8px;justify-content:flex-end;padding:10px 16px 14px;border-top:1px solid var(--line2);flex-wrap:wrap}
@media (min-width:640px){.modal-back{align-items:center}.modal{border-radius:16px;padding-bottom:0}}
@keyframes fadeIn{from{opacity:0}} @keyframes slideUp{from{transform:translateY(40px);opacity:.4}}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:120;overflow:hidden}
.confetti i{position:absolute;top:-12px;width:9px;height:14px;border-radius:2px;animation:conf 2s ease-in forwards;will-change:transform}
@keyframes conf{to{transform:translate(var(--dx),105vh) rotate(var(--r))}}

/* ---- Start ---- */
.hero{background:linear-gradient(135deg,#12313d,#0a6a66);color:#fff;border-radius:16px;padding:22px;position:relative;overflow:hidden}
.hero h1{font-size:1.6rem;margin-bottom:6px}
.hero p{color:#d6efec;max-width:640px}
.hero .btn{border-color:rgba(255,255,255,.3)}
.hero svg.deco{position:absolute;right:-20px;bottom:-30px;opacity:.13;width:240px;height:240px}
.stat{display:flex;flex-direction:column;gap:4px}
.stat b{font-size:1.4rem}
.tile{display:flex;gap:12px;align-items:flex-start;text-decoration:none;color:inherit;transition:transform .12s,box-shadow .12s}
.tile:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(16,40,52,.1)}
.tile .ic{flex:none;width:44px;height:44px;border-radius:12px;background:var(--accent-l);color:var(--accent-d);display:flex;align-items:center;justify-content:center}
.tile h3{margin:0 0 2px}
.tile p{margin:0;color:var(--muted);font-size:14px}

/* ---- Lernen ---- */
.chapter{margin-top:22px}
.chapter h2{display:flex;align-items:center;gap:10px}
.chapter h2 .num{width:30px;height:30px;border-radius:9px;background:var(--head);color:#fff;font-size:15px;display:flex;align-items:center;justify-content:center}
.lesson-list{display:grid;gap:8px}
.lesson-item{display:flex;align-items:center;gap:12px;padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:inherit;transition:border-color .15s,background .15s}
.lesson-item:hover{border-color:var(--accent)}
.lesson-item .chk{flex:none;width:28px;height:28px;border-radius:50%;border:2px solid var(--line);display:flex;align-items:center;justify-content:center;color:#fff}
.lesson-item.done .chk{background:var(--ok);border-color:var(--ok)}
.lesson-item .chk svg{width:16px;height:16px}
.lesson-item .t{flex:1}
.lesson-item .t b{display:block}
.lesson-item .t span{font-size:13px;color:var(--muted)}
.lesson{max-width:760px}
.lesson h2{margin-top:1.2em}
.lesson ul,.lesson ol{padding-left:1.3em}
.lesson li{margin:.25em 0}
.lesson table{border-collapse:collapse;width:100%;margin:10px 0;font-size:14px;display:block;overflow-x:auto}
.lesson th,.lesson td{border:1px solid var(--line);padding:6px 9px;text-align:left;vertical-align:top}
.lesson th{background:var(--panel2)}
.lesson figure{margin:14px 0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center;overflow-x:auto}
.lesson figure svg{max-width:100%;height:auto}
.lesson figcaption{font-size:13px;color:var(--muted);margin-top:6px}
abbr.g{text-decoration:underline dotted var(--accent);text-underline-offset:3px;cursor:help;font-style:normal}
.steps{counter-reset:s;list-style:none;padding:0!important}
.steps>li{counter-increment:s;position:relative;padding:10px 12px 10px 48px;background:#fff;border:1px solid var(--line);border-radius:10px;margin:8px 0}
.steps>li::before{content:counter(s);position:absolute;left:12px;top:10px;width:26px;height:26px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}
.quiz{margin-top:24px}
.q{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;margin:10px 0}
.q .opts{display:grid;gap:7px;margin-top:8px}
.q .opt{text-align:left;border:2px solid var(--line);background:#fff;border-radius:10px;padding:10px 12px;font-weight:500;transition:border-color .12s,background .12s}
.q .opt:hover{border-color:#9fb2bd}
.q .opt.right{border-color:var(--ok);background:var(--ok-l)}
.q .opt.wrong{border-color:var(--err);background:var(--err-l)}
.q .opt[disabled]{cursor:default}
.q .expl{margin-top:8px;font-size:14px}
.lnav{display:flex;justify-content:space-between;gap:10px;margin-top:22px;flex-wrap:wrap}
.glossary dt{font-weight:700;margin-top:10px}
.glossary dd{margin:2px 0 0 0;color:#2c3d47}

/* ---- Aufgaben ---- */
.ex-item{display:flex;gap:12px;align-items:center;padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:inherit}
.ex-item:hover{border-color:var(--accent)}
.ex-item .lvl{display:flex;gap:2px}
.ex-item .lvl i{width:6px;height:14px;border-radius:2px;background:#d7dee3}
.ex-item .lvl i.on{background:var(--accent)}
.ex-item .t{flex:1}
.ex-item .t b{display:block}
.ex-item .t span{font-size:13px;color:var(--muted)}
.check-list{list-style:none;padding:0;margin:8px 0}
.check-list li{display:flex;gap:8px;align-items:flex-start;padding:6px 0;border-bottom:1px solid var(--line2)}
.check-list li .st{flex:none;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;margin-top:1px}
.check-list li.pass .st{background:var(--ok)}
.check-list li.fail .st{background:var(--err)}
.check-list li.todo .st{background:#cbd5e1}

/* ---- Projektansicht (Editor) ---- */
#view-project{display:none;flex-direction:column;overflow:hidden}
#view-project.on{display:flex}
.ptool{flex:none;display:flex;align-items:center;gap:4px;padding:6px 8px;background:#f9fbfc;border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:none}
.ptool::-webkit-scrollbar{display:none}
.ptool .tb{display:inline-flex;align-items:center;gap:6px;border:1px solid transparent;background:transparent;border-radius:8px;padding:6px 9px;font-weight:600;font-size:13.5px;white-space:nowrap;min-height:38px;color:#22343e}
.ptool .tb:hover{background:#eaf0f3;border-color:var(--line)}
.ptool .tb.on{background:var(--accent-l);border-color:#9fd6d0;color:var(--accent-d)}
.ptool .tb svg{width:19px;height:19px}
.ptool .tb.run{color:var(--ok)} .ptool .tb.stp{color:#b45309}
.ptool .sep{width:1px;height:24px;background:var(--line);margin:0 3px;flex:none}
.ptool .tb .lbl{display:none}
@media (min-width:560px){.ptool .tb .lbl{display:inline}}
.ptool .title{font-weight:700;padding:0 6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:40vw}
.pbody{flex:1;display:flex;min-height:0;position:relative}
.ptree{width:270px;flex:none;background:#fff;border-right:1px solid var(--line);overflow:auto;display:flex;flex-direction:column}
.ptree .th{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);padding:10px 12px 4px}
.tree{list-style:none;margin:0;padding:2px 0 8px}
.tree ul{list-style:none;margin:0;padding-left:14px}
.tree .ti{display:flex;align-items:center;gap:7px;padding:6px 10px;border-radius:7px;margin:1px 6px;cursor:pointer;font-size:14px;user-select:none;-webkit-user-select:none;white-space:nowrap}
.tree .ti:hover{background:#eef4f6}
.tree .ti.on{background:var(--accent-l);color:var(--accent-d);font-weight:600}
.tree .ti svg{width:17px;height:17px;flex:none;color:#4f6b78}
.tree .ti .cmpdot{width:9px;height:9px;border-radius:50%;margin-left:auto;flex:none}
.cmpdot.same{background:var(--ok)} .cmpdot.diff{background:#f59e0b} .cmpdot.none{background:transparent}
.tree .ti.dim{color:var(--muted)}
.tree .ti small{color:var(--faint);font-weight:400}
.ptree .pfoot{margin-top:auto;padding:10px 12px;font-size:11.5px;color:var(--faint);border-top:1px solid var(--line2)}
.pwork{flex:1;min-width:0;display:flex;flex-direction:column;background:#fbfcfd}
.pwork-scroll{flex:1;overflow:auto;-webkit-overflow-scrolling:touch;position:relative}
.ppal{width:230px;flex:none;background:#fff;border-left:1px solid var(--line);overflow:auto}
.drawer-back{display:none}
@media (max-width:899px){
  .ptree{position:absolute;left:0;top:0;bottom:0;z-index:40;transform:translateX(-105%);transition:transform .22s ease;box-shadow:4px 0 22px rgba(0,0,0,.18);width:min(300px,86vw)}
  .ptree.open{transform:none}
  .drawer-back.open{display:block;position:absolute;inset:0;background:rgba(10,25,32,.3);z-index:39}
  .ppal{display:none}
}
@media (min-width:900px){ .tb.tree-toggle{display:none} }
.aufgabe-bar{flex:none;background:#fff8e6;border-bottom:1px solid #f3dfa6;padding:7px 10px;display:flex;align-items:center;gap:8px;font-size:13.5px}
.aufgabe-bar b{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.statusline{flex:none;display:flex;align-items:center;gap:10px;padding:4px 10px;font-size:12.5px;background:#f2f6f8;border-top:1px solid var(--line);color:var(--muted);min-height:28px;overflow:hidden;white-space:nowrap}
.statusline .s-err{color:var(--err);font-weight:600} .statusline .s-ok{color:var(--ok);font-weight:600} .statusline .s-warn{color:var(--warn);font-weight:600}
.statusline button{border:0;background:none;color:var(--blue);font-weight:600;padding:0 4px;font-size:12.5px}

/* Palette */
.pal-sec{padding:6px 10px}
.pal-sec h4{font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin:8px 2px 6px}
.pal-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.pal-item{display:flex;flex-direction:column;align-items:center;gap:2px;border:1px solid var(--line);background:#fff;border-radius:9px;padding:6px 4px;font-size:11.5px;font-weight:600;color:#30444f;touch-action:pan-x;user-select:none;-webkit-user-select:none;cursor:grab;min-height:58px;justify-content:center;text-align:center;line-height:1.15}
.pal-item:hover{border-color:var(--accent);background:#f4fbfa}
.pal-item svg{width:46px;height:24px}
.pal-strip{flex:none;display:none;gap:6px;overflow-x:auto;padding:7px 8px;background:#fff;border-top:1px solid var(--line);scrollbar-width:none}
.pal-strip::-webkit-scrollbar{display:none}
.pal-strip .pal-item{flex:none;width:68px;min-height:56px}
.pal-strip .pal-cat{flex:none;writing-mode:vertical-rl;transform:rotate(180deg);font-size:10px;color:var(--faint);font-weight:700;text-transform:uppercase;letter-spacing:.6px;align-self:center}
@media (max-width:899px){ .pal-strip.lad{display:flex} }
.drag-ghost{position:fixed;z-index:200;pointer-events:none;transform:translate(-50%,-60%);background:#fff;border:2px solid var(--accent);border-radius:10px;padding:6px 8px;box-shadow:0 10px 26px rgba(0,0,0,.25);font-size:12px;font-weight:700;display:flex;flex-direction:column;align-items:center}
.drag-ghost svg{width:46px;height:24px}

/* KOP-Editor */
.block-head{padding:12px 14px 4px}
.block-head h2{margin:0;font-size:1.1rem;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.block-head .cmt{color:var(--muted);font-size:13.5px}
.net{margin:10px 10px 14px;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.net-h{display:flex;align-items:center;gap:6px;padding:6px 6px 6px 10px;background:#f3f7f9;border-bottom:1px solid var(--line2);font-size:13.5px}
.net-h .nt{font-weight:700;white-space:nowrap}
.net-h .ntitle{flex:1;min-width:0;color:#3d5260;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.net-h .icon-btn{width:34px;height:34px}
.net-h .icon-btn svg{width:18px;height:18px}
.net-c{color:var(--muted);font-size:13px;padding:4px 12px 0;white-space:pre-wrap}
.net-err{color:var(--err);font-size:12.5px;padding:2px 12px 6px}
.net-body{overflow-x:auto;-webkit-overflow-scrolling:touch;padding:6px 0 10px}
.ladder{position:relative;margin-left:4px}
.ladder > svg.wires{position:absolute;left:0;top:0;pointer-events:none;overflow:visible}
.rail{stroke:#334;stroke-width:3}
.monitor .rail{stroke:var(--pow)}
.cell{position:absolute;border-radius:7px;cursor:pointer;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}
.cell svg{position:absolute;left:0;top:0;overflow:visible}
.cell.empty{outline:1px dashed transparent}
.ladder.editing .cell.empty:hover,.ladder.editing .cell.empty.sel{outline-color:#9fb2bd;background:rgba(10,128,121,.04)}
.cell.sel{background:rgba(245,158,11,.10);outline:2px solid var(--sel)!important}
.cell.err .opl{fill:var(--err)}
.cell.err{background:rgba(220,38,38,.05)}
.cell.droptgt{outline:2px dashed var(--accent)!important;background:rgba(10,128,121,.10)}
.cell .ln{stroke:#2f3e48;stroke-width:2;fill:none}
.cell .sym{stroke:#2f3e48;stroke-width:2.2;fill:none}
.cell .symf{fill:#2f3e48;font:700 11px system-ui,sans-serif}
.cell .opl{font:600 11px system-ui,sans-serif;fill:#1d4d7a}
.cell .opa{font:500 10px var(--mono);fill:#6b7d88}
.cell .boxr{fill:#fff;stroke:#2f3e48;stroke-width:1.6}
.cell .boxt{font:700 11.5px system-ui,sans-serif;fill:#1f2f38}
.cell .pinl{font:600 10px system-ui,sans-serif;fill:#45606e}
.cell .pinv{font:600 10px var(--mono);fill:#1d4d7a}
.cell .mval{font:700 10px var(--mono);fill:transparent}
.monitor .cell .ln,.monitor .cell .sym{stroke:var(--nopow);stroke-dasharray:4 3}
.monitor .cell.pin .ln.li,.monitor .cell.pout .ln.lo{stroke:var(--pow);stroke-dasharray:none;stroke-width:3}
.monitor .cell.closed .sym{stroke:var(--pow);stroke-dasharray:none;stroke-width:2.6}
.monitor .cell.closed .symf{fill:var(--pow)}
.monitor .cell .boxr{stroke:var(--nopow);stroke-dasharray:4 3}
.monitor .cell.pin .boxr{stroke:var(--pow);stroke-dasharray:none}
.monitor .cell .mval{fill:var(--pow)}
.monitor .cell .mval.f{fill:var(--nopow)}
.vlink{stroke:#2f3e48;stroke-width:2}
.monitor .vlink{stroke:var(--nopow);stroke-dasharray:4 3}
.monitor .vlink.p{stroke:var(--pow);stroke-dasharray:none;stroke-width:3}
.lhandle{position:absolute;width:26px;height:26px;margin:-13px 0 0 -13px;border-radius:50%;border:2px dashed #94a3b8;background:rgba(255,255,255,.9);z-index:3;display:flex;align-items:center;justify-content:center;font-size:14px;color:#64748b;font-weight:700}
.lhandle.on{border-style:solid;border-color:var(--accent);background:var(--accent);color:#fff}
.net-foot{display:flex;gap:6px;padding:0 10px 10px;flex-wrap:wrap}
.add-net{margin:4px 10px 30px}
.offline-hint{margin:10px;}

/* Inspektor */
.insp{flex:none;background:#fff;border-top:1px solid var(--line);max-height:46%;display:flex;flex-direction:column;box-shadow:0 -6px 18px rgba(0,0,0,.06)}
.insp.hidden{display:none}
.insp-h{display:flex;align-items:center;gap:8px;padding:6px 6px 4px 12px;border-bottom:1px solid var(--line2)}
.insp-h b{flex:1;font-size:14px}
.insp-b{padding:8px 12px 12px;overflow:auto}
.insp .help{font-size:13px;color:var(--muted);margin:2px 0 6px}
.chips{display:flex;flex-wrap:wrap;gap:5px;margin-top:6px;max-height:120px;overflow:auto}
.chip{border:1px solid var(--line);background:#f8fafb;border-radius:999px;padding:4px 10px;font-size:12.5px;font-weight:600;color:#2a4150;white-space:nowrap}
.chip small{color:var(--faint);font-weight:500;font-family:var(--mono);margin-left:4px}
.chip:hover{border-color:var(--accent);background:var(--accent-l)}
.chip.new{border-style:dashed;color:var(--accent-d)}
.oprow{display:grid;grid-template-columns:1fr;gap:2px;margin-bottom:6px}
.oprow .err{color:var(--err);font-size:12.5px}
.insp-actions{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}

/* SCL */
.scl-wrap{position:relative;margin:10px;border:1px solid var(--line);border-radius:10px;background:#fff;display:flex;overflow:hidden;min-height:300px}
.scl-gut{flex:none;width:42px;background:#f3f6f8;border-right:1px solid var(--line2);color:#97a6b0;font:13px/20px var(--mono);text-align:right;padding:10px 6px 10px 0;user-select:none;overflow:hidden;white-space:pre}
.scl-area{position:relative;flex:1;min-width:0;overflow:hidden}
.scl-area textarea,.scl-area pre{margin:0;border:0;padding:10px 12px;font:13.5px/20px var(--mono);white-space:pre;tab-size:2;letter-spacing:0;position:absolute;inset:0;overflow:auto;width:100%;height:100%;min-height:0;border-radius:0;box-shadow:none}
.scl-area textarea{color:transparent;caret-color:#111;background:transparent;resize:none;z-index:2;-webkit-text-fill-color:transparent}
.scl-area textarea::selection{background:rgba(29,111,184,.25);-webkit-text-fill-color:transparent}
.scl-area pre{z-index:1;color:#1f2d36;pointer-events:none}
.scl-area pre .k{color:#7c3aed;font-weight:700} .scl-area pre .s{color:#0b6b9e} .scl-area pre .c{color:#6a8a5a;font-style:italic} .scl-area pre .n{color:#b45309} .scl-area pre .l{color:#0f766e}
.scl-area pre .el{background:rgba(220,38,38,.12);display:inline-block;width:100%}
.scl-mon{flex:none;width:38%;max-width:300px;border-left:1px solid var(--line2);background:#f8fbf9;font:12px/20px var(--mono);padding:10px 8px;overflow:hidden;white-space:pre;color:#166534;display:none}
.monitor .scl-mon{display:block}
.scl-snips{display:flex;gap:6px;flex-wrap:wrap;padding:0 10px}

/* Tabellen */
.ttable{margin:10px;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:auto}
.ttable table{border-collapse:collapse;width:100%;min-width:640px;font-size:13.5px}
.ttable th{position:sticky;top:0;background:#f1f5f7;text-align:left;font-size:12px;font-weight:700;color:var(--muted);padding:7px 8px;border-bottom:1px solid var(--line);z-index:1}
.ttable td{border-bottom:1px solid var(--line2);padding:3px 4px;vertical-align:middle}
.ttable td input,.ttable td select{min-height:34px;padding:4px 7px;border-color:transparent;background:transparent;font-size:13.5px}
.ttable td input:hover,.ttable td select:hover{border-color:var(--line)}
.ttable td input:focus,.ttable td select:focus{background:#fff}
.ttable td.val{font-family:var(--mono);font-weight:600;white-space:nowrap;padding:0 8px;min-width:90px}
.ttable td.val.t{color:var(--ok)} .ttable td.val.f{color:#64748b}
.ttable tr.err td{background:#fff5f5}
.ttable td .icon-btn{width:32px;height:32px}
.ttable .frc-on{background:#fef3c7!important}
.ttable .chk{width:20px;height:20px;accent-color:var(--accent)}
.tbl-actions{display:flex;gap:8px;flex-wrap:wrap;margin:10px}

/* Gerätekonfiguration */
.rack{display:flex;gap:4px;padding:18px 14px;overflow-x:auto;align-items:stretch}
.module{flex:none;border:2px solid #b8c6cf;border-radius:8px;background:linear-gradient(180deg,#e9eef1,#d5dde2);padding:8px;cursor:pointer;display:flex;flex-direction:column;gap:6px;position:relative;transition:border-color .15s}
.module.on{border-color:var(--accent);box-shadow:0 0 0 3px rgba(10,128,121,.15)}
.module .mh{font-weight:700;font-size:12px;color:#26404c}
.module .ms{font-size:11px;color:#516874}
.module.cpu{width:200px;background:linear-gradient(180deg,#e3eaee,#c6d2d9)}
.module.sm{width:96px}
.slotno{position:absolute;top:-16px;left:4px;font-size:10px;color:var(--faint)}
.ledrow{display:flex;gap:3px;flex-wrap:wrap}
.led{width:9px;height:9px;border-radius:2px;background:#5a6b74;box-shadow:inset 0 0 0 1px rgba(0,0,0,.2)}
.led.g{background:#22c55e;box-shadow:0 0 5px #22c55e} .led.y{background:#fbbf24;box-shadow:0 0 5px #fbbf24} .led.r{background:#ef4444;box-shadow:0 0 5px #ef4444}
.iol{display:flex;flex-direction:column;align-items:center;gap:1px;font:9px var(--mono);color:#4b5f6a}
.props{padding:4px 14px 20px}
.props table{border-collapse:collapse;font-size:13.5px;width:100%;max-width:640px}
.props td{padding:5px 8px;border-bottom:1px solid var(--line2)}
.props td:first-child{color:var(--muted);width:42%}

/* ---- Anlage ---- */
.plant-nav{position:sticky;top:0;z-index:5;background:rgba(238,242,245,.94);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;gap:6px;overflow-x:auto;padding:8px 12px;border-bottom:1px solid var(--line);scrollbar-width:none}
.plant-nav::-webkit-scrollbar{display:none}
.plant-nav button{flex:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font-weight:600;font-size:13px}
.plant-grid{display:grid;gap:14px;padding:12px;max-width:1500px;margin:0 auto}
@media (min-width:1000px){.plant-grid{grid-template-columns:1fr 1fr}.plant-grid .wide{grid-column:1 / -1}}
.st-card{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh);overflow:hidden;scroll-margin-top:56px}
.st-card > h3{display:flex;align-items:center;gap:8px;margin:0;padding:11px 14px;border-bottom:1px solid var(--line2);font-size:15px;background:#f8fafb}
.st-card > h3 .sub{font-weight:500;color:var(--muted);font-size:12.5px;margin-left:auto}
.st-body{padding:12px}
.st-svg{width:100%;height:auto;display:block;touch-action:manipulation;user-select:none;-webkit-user-select:none}
.st-ctrl{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;align-items:center}
.st-ctrl label{display:flex;align-items:center;gap:6px;font-size:13.5px}
.st-ctrl input[type=range]{width:160px}
.pult{display:grid;grid-template-columns:repeat(auto-fill,minmax(86px,1fr));gap:10px;align-items:start}
.pbtn{display:flex;flex-direction:column;align-items:center;gap:5px;font-size:12px;font-weight:600;color:#30444f;text-align:center;user-select:none;-webkit-user-select:none;line-height:1.2}
.pbtn .cap{width:60px;height:60px;border-radius:50%;border:5px solid #c9d2d8;box-shadow:0 4px 0 #9aa7af,0 6px 10px rgba(0,0,0,.18);transition:transform .06s,box-shadow .06s;touch-action:none;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px;cursor:pointer}
.pbtn .cap.pressed{transform:translateY(3px);box-shadow:0 1px 0 #9aa7af,0 2px 4px rgba(0,0,0,.2)}
.pbtn .cap.green{background:radial-gradient(circle at 35% 30%,#4ade80,#15803d)}
.pbtn .cap.red{background:radial-gradient(circle at 35% 30%,#f87171,#b91c1c)}
.pbtn .cap.white{background:radial-gradient(circle at 35% 30%,#ffffff,#cbd5e1);color:#334155}
.pbtn .cap.blue{background:radial-gradient(circle at 35% 30%,#60a5fa,#1d4ed8)}
.pbtn .cap.yellow{background:radial-gradient(circle at 35% 30%,#fde047,#ca8a04);color:#422006}
.pbtn .cap.estop{width:68px;height:68px;border:7px solid #facc15;background:radial-gradient(circle at 35% 30%,#f87171,#991b1b)}
.pbtn .cap.estop.pressed{transform:scale(.9)}
.pbtn .sel{width:60px;height:60px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#475569,#0f172a);border:5px solid #c9d2d8;position:relative;cursor:pointer;touch-action:none}
.pbtn .sel::after{content:"";position:absolute;left:50%;top:6px;width:10px;height:38px;margin-left:-5px;background:#e2e8f0;border-radius:5px;transform-origin:50% 22px;transform:rotate(-40deg);transition:transform .15s}
.pbtn .sel.on::after{transform:rotate(40deg)}
.pbtn .lamp{width:46px;height:46px;border-radius:50%;border:5px solid #c9d2d8;background:#475057;transition:background .08s,box-shadow .08s}
.pbtn .lamp.g.on{background:radial-gradient(circle at 40% 35%,#bbf7d0,#22c55e);box-shadow:0 0 18px #22c55e}
.pbtn .lamp.r.on{background:radial-gradient(circle at 40% 35%,#fecaca,#ef4444);box-shadow:0 0 18px #ef4444}
.pbtn .lamp.y.on{background:radial-gradient(circle at 40% 35%,#fef08a,#f59e0b);box-shadow:0 0 18px #f59e0b}
.pbtn small{font-weight:500;color:var(--faint);font-family:var(--mono);font-size:10.5px}
.pbtn .horn{width:46px;height:46px;display:flex;align-items:center;justify-content:center}
.pbtn .horn.on svg{animation:shake .12s infinite}
@keyframes shake{50%{transform:rotate(8deg) scale(1.08)}}
.poti{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:12px;font-weight:600}
.poti input{width:100%}
.safety-banner{display:none;margin-bottom:10px}
.safety-banner.show{display:flex}
.pulse{animation:pulse 1.2s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 6px rgba(29,78,216,.25),0 4px 0 #9aa7af}}
.iostrip{display:flex;flex-wrap:wrap;gap:10px;font:10px var(--mono);color:#4b5f6a;margin-top:12px;padding:8px;background:#1f2b33;border-radius:8px}
.iostrip .grp{display:flex;gap:3px;align-items:flex-end}
.iostrip .grp > span{color:#9fb3bf;margin-right:3px;align-self:center;font-weight:700}
.iostrip .io{display:flex;flex-direction:column;align-items:center;gap:2px;color:#9fb3bf}
.iostrip .io i{width:10px;height:10px;border-radius:2px;background:#3a4851}
.iostrip .io i.on{background:#4ade80;box-shadow:0 0 6px #4ade80}
.events{max-height:220px;overflow:auto;font-size:13px}
.events div{padding:5px 2px;border-bottom:1px solid var(--line2);display:flex;gap:8px}
.events .tm{color:var(--faint);font-family:var(--mono);font-size:11.5px;flex:none;padding-top:2px}
.events .err{color:#b91c1c} .events .warn{color:#a16207} .events .ok{color:#15803d}
.sv-click{cursor:pointer}
.sv-click:hover{filter:brightness(1.06)}
.meter-mode .sv-meas{cursor:crosshair;outline:none}
.meter{position:sticky;bottom:8px;display:none;align-items:center;gap:10px;background:#111827;color:#a7f3d0;font:600 15px var(--mono);border-radius:10px;padding:8px 12px;margin-top:8px;box-shadow:0 6px 16px rgba(0,0,0,.3)}
.meter.show{display:flex}
.meter .disp{background:#0b1f14;padding:4px 10px;border-radius:6px;min-width:90px;text-align:right;font-size:20px}
/* Bedienpult-Schublade im Editor */
.pult-drawer{position:absolute;left:0;right:0;bottom:0;z-index:35;background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(0,0,0,.15);transform:translateY(105%);transition:transform .22s ease;max-height:70%;overflow:auto;padding:8px 12px 12px}
.pult-drawer.open{transform:none}
.pult-drawer .dh{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.pult-drawer .dh b{flex:1}
@media (min-width:900px){.pult-drawer{left:auto;right:12px;bottom:12px;width:430px;border-radius:14px;border:1px solid var(--line);max-height:80%}}
.split-plant{display:none;flex:none;width:44%;border-left:1px solid var(--line);overflow:auto;background:var(--bg)}
.split-on .split-plant{display:block}
@media (max-width:1199px){.split-on .split-plant{display:none}}
.hide{display:none!important}
.kbd-hint{font-size:12px;color:var(--faint)}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}
/* FUP-Ansicht */
.fbd{padding:10px 12px}
.fbd-row{display:flex;align-items:center;padding:8px 0;border-bottom:1px dashed var(--line2);min-width:max-content}
.fbd-row:last-child{border-bottom:0}
.fgate{display:flex;align-items:stretch}
.fins{display:flex;flex-direction:column;justify-content:center;gap:6px;padding:4px 0}
.fin{display:flex;align-items:center;position:relative}
.fline{display:inline-block;width:16px;height:0;border-top:2px solid #2f3e48;flex:none}
.fpin{font:600 10px system-ui;color:#45606e;margin-left:-2px;padding:0 3px;background:#fff;border:1px solid #2f3e48;border-right:0;border-radius:3px 0 0 3px}
.fbx{min-width:46px;border:2px solid #2f3e48;background:#fff;border-radius:3px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:800;padding:6px 8px;font-size:14px;color:#1f2f38}
.fbx.big{min-width:80px;font-size:12.5px}
.fbx small{font-weight:500;font-size:10.5px;color:#516874}
.fsig{font:600 12px var(--mono);background:#f1f5f9;border:1px solid var(--line);border-radius:5px;padding:3px 7px;color:#1d4d7a;display:inline-flex;flex-direction:column;line-height:1.2;white-space:nowrap}
.fsig small{font-size:10px;color:#7b8b95;font-weight:500}
.fin.neg > .fline::after,.fin.neg::after{content:"";position:absolute;right:-5px;top:50%;width:8px;height:8px;margin-top:-5px;border:2px solid #2f3e48;border-radius:50%;background:#fff}
.fassign{display:flex;flex-direction:column;align-items:center;gap:3px}
.fassign .fop{font:600 12px var(--mono);color:#1d4d7a}
.monitor .fline,.fbd .on > .fline,.fbd .fline.on{border-top-color:var(--pow)}
.fbd .on > .fbx,.fbd .fgate.on > .fbx,.fbd .fassign.on > .fbx{border-color:var(--pow);color:#15803d}
.fbd .fin.on > .fsig{background:var(--ok-l);border-color:#86efac;color:#166534}

/* ---- Ergänzungen Lernen/Aufgaben ---- */
.check-list.res li{display:block}
.check-list.res li.bad{color:#7f1d1d}
.lesson .check-list li::before{content:'☐';color:var(--accent);font-weight:700}
.quiz-opts{display:grid;gap:8px}
.qopt{text-align:left;border:2px solid var(--line);background:#fff;border-radius:10px;padding:11px 12px;font:inherit;font-weight:500;cursor:pointer;color:inherit}
.qopt.sel{border-color:var(--accent);background:var(--accent-l)}
.codeblk{background:#0f172a;color:#e2e8f0;padding:12px;border-radius:10px;overflow:auto;font-size:13.5px;line-height:1.5}
.codeblk code{background:none;border:0;color:inherit;padding:0}
.lesson-item .tag{flex:none}
.lesson-head .meta{color:var(--muted);font-size:13px}
.quiz-score{font-weight:700}
.ex-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
abbr.g{text-decoration:underline dotted;text-underline-offset:3px;cursor:help;color:inherit}
.iostrip{gap:6px 14px}
.iostrip .grp{flex-wrap:wrap;row-gap:6px}
.iostrip .io{min-width:25px;font-size:9px}
.ladder.editing .cell.empty{outline:1px dashed #d3dde3;outline-offset:-4px}
.ladder.editing .cell.empty:hover,.ladder.editing .cell.empty.sel{outline-offset:0}
.pult-drawer{transform:translateY(calc(100% + 40px));visibility:hidden;transition:transform .22s ease,visibility 0s .22s}
.pult-drawer.open{transform:none;visibility:visible;transition:transform .22s ease,visibility 0s}
.pal-strip{align-items:center}
.pal-strip .pal-item{height:62px;min-height:0;padding:4px 2px;justify-content:center}
.pal-strip .pal-item svg{max-height:28px;width:auto}
.svg-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
@media (max-width:640px){.st-svg.belt{min-width:600px}}
@media (max-width:640px){.st-svg.cab{min-width:620px}}
.st-ctrl select{max-width:100%}
.iostrip.mini{margin-top:8px}
.mon-lock .pal-item,.mon-lock .pal-strip,.mon-lock .insp-actions{opacity:.4;pointer-events:none;filter:grayscale(1)}
.note.mon-hint{margin:8px 10px;background:#ecfdf5;border-color:#a7f3d0}
/* 0.2: Werkzeugleiste umbrechen statt abschneiden, wichtige Knöpfe immer beschriftet */
.ptool{flex-wrap:wrap;row-gap:2px;overflow:visible}
.ptool .tb.key .lbl{display:inline}
@media (max-width:559px){.ptool .tb{padding:6px 7px}.ptool .sep{display:none}}
.pal-strip .pal-cat{max-height:60px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:9px}
@media (max-width:899px){
  .insp{max-height:38%}
  .pwork:has(.insp.has-el:not(.hidden)) .pal-strip{display:none}
}
@media (min-width:900px){.pbody.pult-on .pwork{margin-right:452px}.pbody.pult-on .ppal{display:none}}