:root{--bg:#f3f5f8;--card:#fff;--text:#1d2330;--muted:#6b7385;--line:#e3e7ee;--accent:#2f6fde;--accent-text:#fff;--ok:#1f9d55;--warn:#c98a00;--bad:#d64545;--chip:#eef1f6;--shadow:0 1px 2px rgba(20,30,50,.06)}
@media (prefers-color-scheme:dark){:root{--bg:#12151b;--card:#1c2029;--text:#e6e9ef;--muted:#99a1b3;--line:#2c323e;--accent:#4d8bf0;--chip:#262b36;--shadow:none}}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.4}
[hidden]{display:none!important}
a{color:var(--accent)}
h1{font-size:20px;margin:0}
h2.title{font-size:22px;margin:0}
.sub{color:var(--muted);font-size:13px}

/* Kopfzeile */
.top{position:sticky;top:0;z-index:5;background:var(--card);border-bottom:1px solid var(--line)}
.top-in{max-width:1180px;margin:auto;padding:10px 16px;display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;text-decoration:none;color:var(--text)}
.brand svg{color:var(--accent)}
nav{display:flex;gap:4px;flex:1}
nav a{padding:7px 12px;border-radius:8px;color:var(--muted);text-decoration:none;font-weight:500}
nav a.on,nav a:hover{background:var(--chip);color:var(--text)}
.user{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--muted)}

main{max-width:1180px;margin:auto;padding:20px 16px 40px}
.head{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;justify-content:space-between;margin-bottom:16px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr))}
.cols{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr));margin-top:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow)}
.card h3{font-size:12px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:0 0 14px;font-weight:600}
.card.wide{grid-column:1/-1}

/* Gerätekarten */
.dev{cursor:pointer;transition:border-color .15s,transform .15s;display:flex;flex-direction:column;gap:10px;text-decoration:none;color:inherit}
.dev:hover{border-color:var(--accent)}
.dev .name{font-weight:600;font-size:16px;overflow-wrap:anywhere}
.dev .id{font-size:12px;color:var(--muted)}
.dev .temp{font-size:38px;font-weight:600;line-height:1}
.dev .temp small{font-size:16px;color:var(--muted);font-weight:400}
.dev .ac{font-size:14px;color:var(--muted)}
.dev .row{display:flex;justify-content:space-between;align-items:center;gap:8px}

.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:3px 10px;border-radius:99px;background:var(--chip);color:var(--muted);white-space:nowrap}
.pill::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--muted)}
.pill.ok::before{background:var(--ok)}
.pill.warn::before{background:var(--warn)}
.pill.bad::before{background:var(--bad)}
.badge{display:inline-block;padding:2px 10px;border-radius:99px;font-size:13px;font-weight:600;background:var(--chip)}
.badge.on{background:var(--ok);color:#fff}

/* Bedienelemente */
.seg{display:inline-flex;flex-wrap:wrap;gap:4px;background:var(--chip);padding:3px;border-radius:10px}
.seg button{padding:6px 12px;border:0;background:transparent;color:var(--muted);border-radius:8px;font:inherit;font-weight:500;cursor:pointer}
.seg button.on{background:var(--card);color:var(--text);box-shadow:0 1px 2px rgba(0,0,0,.12)}
.seg.wide{display:flex}
.seg.wide button{flex:1 1 auto}
.l{display:block;font-size:13px;color:var(--muted);margin:0 0 6px}
.field{margin-bottom:14px}
.step{display:flex;align-items:center;justify-content:center;gap:14px}
.step button{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:var(--chip);color:var(--text);font-size:21px;cursor:pointer}
.step span{font-size:28px;font-weight:600;min-width:96px;text-align:center}
.off{opacity:.35;pointer-events:none}
.btn{display:inline-block;padding:9px 16px;border-radius:10px;font:inherit;font-weight:600;cursor:pointer;text-align:center;text-decoration:none;border:1px solid var(--line);background:transparent;color:var(--text)}
.btn.primary{border-color:var(--accent);background:var(--accent);color:var(--accent-text)}
.btn.danger{border-color:var(--bad);color:var(--bad)}
.btn.small{padding:5px 10px;font-size:13px}
.btn.block{display:block;width:100%}
.btn:disabled{opacity:.5;cursor:default}
input,select{width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:9px;background:var(--bg);color:var(--text);font:inherit}
.inline{display:flex;gap:8px}
.inline>input,.inline>select{flex:1;min-width:0}
.msg{min-height:18px;font-size:13px;margin-top:8px;color:var(--muted)}
.msg.ok{color:var(--ok)}
.msg.bad{color:var(--bad)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 14px;margin:0}
.kv dt{color:var(--muted)}
.kv dd{margin:0;font-weight:500;text-align:right;overflow-wrap:anywhere}
.back{color:var(--muted);text-decoration:none;font-size:14px}
.back:hover{color:var(--accent)}
.empty{color:var(--muted);text-align:center;padding:30px 10px}

/* Diagramme */
.chart{position:relative;height:300px}
.chart.small{height:240px}

/* Tabellen */
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th{text-align:left;color:var(--muted);font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.05em;padding:8px;border-bottom:1px solid var(--line)}
.table td{padding:8px;border-bottom:1px solid var(--line);vertical-align:middle}
.table tr:last-child td{border-bottom:0}
.table select{width:auto;padding:5px 8px}
.scroll{overflow-x:auto}
.log{list-style:none;margin:0;padding:0;font-size:14px}
.log li{padding:7px 0;border-bottom:1px solid var(--line);display:flex;gap:10px}
.log li:last-child{border-bottom:0}
.log time{color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}

/* Anmeldung */
.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}
.login .card{width:100%;max-width:380px;padding:28px}
.login h1{display:flex;align-items:center;gap:10px;margin-bottom:20px}

dialog{border:1px solid var(--line);border-radius:14px;background:var(--card);color:var(--text);padding:24px;width:min(420px,calc(100% - 32px))}
dialog::backdrop{background:rgba(10,15,25,.45)}
dialog h3{margin:0 0 16px}

/* Energie */
.tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.pager{display:flex;align-items:center;gap:8px}
.pager b{min-width:110px;text-align:center}
.loc .total{font-size:34px;font-weight:600;line-height:1}
.loc .total small{font-size:15px;color:var(--muted);font-weight:400}
.feeds{list-style:none;margin:14px 0 0;padding:0}
.feeds li{padding:8px 0;border-top:1px solid var(--line)}
.feeds .row{display:flex;justify-content:space-between;gap:10px}
.feeds .w{font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.feeds .k{color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}
.share{height:5px;border-radius:99px;background:var(--chip);margin-top:6px;overflow:hidden}
.share>div{height:100%;border-radius:99px}
.dot{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.checks{display:flex;flex-direction:column;gap:4px;max-height:280px;overflow:auto;border:1px solid var(--line);border-radius:9px;padding:8px}
.checks label{display:flex;gap:8px;align-items:center;font-size:14px;cursor:pointer}
.checks input{width:auto}
.checks .grp{font-size:12px;color:var(--muted);margin-top:6px;text-transform:uppercase;letter-spacing:.05em}
.checks .grp:first-child{margin-top:0}
.meter{border-top:1px solid var(--line);padding:12px 0}
.meter:first-child{border-top:0;padding-top:0}
.meter .row{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.help{color:var(--muted);padding-left:20px;margin:0;line-height:1.7}
code{background:var(--chip);padding:1px 5px;border-radius:5px;font-size:13px}