:root{
  --navy:#0f1b2d;--navy2:#1a2a42;--bg:#f2f5f9;--card:#ffffff;--line:#d8e0ea;--text:#13202f;--muted:#5b6b80;
  --blue:#1f6fd1;--blue-soft:#e3eefc;--heat:#e8772e;--heat-soft:#fdeee3;--ok:#1f9d55;--ok-soft:#e2f5ea;
  --cold:#2b7bd6;--cold-soft:#e1edfb;--red:#d93025;--red-soft:#fde7e5;--grey:#8a96a6;--grey-soft:#eef1f5;
  --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:15px}
[hidden]{display:none!important}
button{font:inherit;cursor:pointer}
input,select{font:inherit}
.muted{color:var(--muted)}.small{font-size:13px}
.btn{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:10px;padding:9px 14px;min-height:40px}
.btn:hover{border-color:#b9c6d6}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
.btn.primary:hover{background:#185fb6}
.btn.danger{color:var(--red);border-color:#f2b8b3}
.btn.ghost{background:transparent;color:inherit;border-color:rgba(255,255,255,.25)}
.btn.small{min-height:32px;padding:5px 10px;font-size:13px}
.btn[disabled]{opacity:.5;cursor:default}
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;font-size:13px;font-weight:600;background:rgba(255,255,255,.12);color:#fff;border:0}
.pill.alarm{background:var(--red);color:#fff}

/* Anmeldung */
.login{min-height:100%;display:grid;place-items:center;background:var(--navy);padding:16px}
.login-card{background:#fff;border-radius:16px;padding:28px;width:min(380px,100%);display:flex;flex-direction:column;gap:14px}
.login-card label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:14px}
.login-card input{border:1px solid var(--line);border-radius:10px;padding:10px 12px}
.err{color:var(--red);margin:0;font-size:14px}

/* Kopf */
.top{background:var(--navy);color:#fff;display:flex;align-items:center;gap:18px;padding:10px 20px;flex-wrap:wrap;position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:10px}
.brand b{display:block;font-size:17px}.brand small{display:block;color:#a9b8cc;font-size:12px}
.brand.big{color:var(--text);margin-bottom:6px}.brand.big small{color:var(--muted)}
.logo-k{width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,#1f6fd1,#4aa3ff);display:grid;place-items:center;font-weight:900;font-size:20px;color:#fff}
.tabs{display:flex;gap:4px;flex-wrap:wrap;flex:1}
.tabs button{background:transparent;border:0;color:#c3cfde;padding:9px 12px;border-radius:9px;font-weight:600}
.tabs button.on,.tabs button:hover{background:rgba(255,255,255,.1);color:#fff}
.top-right{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.demo-bar{background:#fff4d6;color:#7a5a00;text-align:center;padding:6px;font-size:13px;font-weight:600}
.alarm-list{background:var(--red-soft);border-bottom:1px solid #f2b8b3;padding:10px 20px;display:flex;flex-direction:column;gap:4px;font-size:14px}
.alarm-list .a-error{color:var(--red);font-weight:600}

main{padding:20px;max-width:1500px;margin:0 auto}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
h2{margin:0 0 12px;font-size:20px}h3{margin:0 0 10px;font-size:16px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.grow{flex:1}
.empty{padding:40px;text-align:center;color:var(--muted)}

/* Gebäudeplan */
.floor-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px;align-items:center}
.floor-tabs .ft{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px;font-weight:600}
.floor-tabs .ft.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.plan-tools{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-left:auto}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:5px;vertical-align:-1px}
.plan-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px;overflow:auto}
.plan{position:relative;width:100%;min-width:760px;user-select:none;touch-action:none}
.plan img{display:block;width:100%;height:auto;pointer-events:none}
.plan.noimg{aspect-ratio:16/9;background-image:linear-gradient(#e9eef4 1px,transparent 1px),linear-gradient(90deg,#e9eef4 1px,transparent 1px);background-size:40px 40px;border-radius:8px}
.plan.editing{cursor:crosshair}
.zone{position:absolute;border:2px solid var(--grey);background:color-mix(in srgb,var(--grey-soft) 88%,transparent);border-radius:8px;padding:6px 8px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;overflow:hidden;cursor:pointer;transition:box-shadow .15s}
.zone:hover{box-shadow:0 4px 16px rgba(15,27,45,.18)}
.zone .zn{font-weight:700;font-size:13px;line-height:1.2;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.zone .zt{font-weight:800;font-size:22px;line-height:1.1}
.zone .zs{font-size:12px;color:var(--muted);white-space:nowrap}
.zone .zi{position:absolute;top:4px;right:6px;font-size:13px;display:flex;gap:3px}
.zone.st-ok{border-color:var(--ok);background:color-mix(in srgb,var(--ok-soft) 86%,transparent)}
.zone.st-heat{border-color:var(--heat);background:color-mix(in srgb,var(--heat-soft) 86%,transparent)}
.zone.st-cold{border-color:var(--cold);background:color-mix(in srgb,var(--cold-soft) 86%,transparent)}
.zone.st-alarm{border-color:var(--red);background:color-mix(in srgb,var(--red-soft) 88%,transparent)}
.zone.st-off{border-style:dashed}
.zone.sel{outline:3px solid var(--navy);outline-offset:2px}
.zone .ov{position:absolute;left:6px;top:4px;font-size:11px;font-weight:700;color:#fff;background:var(--navy);border-radius:6px;padding:1px 6px}
.editing .zone{cursor:move}
.zone .handle{position:absolute;right:0;bottom:0;width:16px;height:16px;cursor:nwse-resize;background:linear-gradient(135deg,transparent 50%,var(--navy) 50%);border-bottom-right-radius:6px}
.draft{position:absolute;border:2px dashed var(--blue);background:rgba(31,111,209,.12);border-radius:8px;pointer-events:none}
.hint{background:var(--blue-soft);color:#174a8c;border-radius:10px;padding:10px 14px;font-size:14px;margin-bottom:12px}

/* Seitenpanel */
.panel{position:fixed;right:0;top:0;bottom:0;width:min(440px,100%);background:#fff;border-left:1px solid var(--line);box-shadow:-10px 0 30px rgba(15,27,45,.15);z-index:30;overflow:auto;padding:20px;display:flex;flex-direction:column;gap:14px}
.panel-head{display:flex;align-items:flex-start;gap:10px}
.panel-head h2{flex:1;margin:0}
.x{border:0;background:var(--grey-soft);width:36px;height:36px;border-radius:50%;font-size:20px;line-height:1}
.big-temp{display:flex;gap:14px;align-items:stretch}
.big-temp>div{flex:1;background:var(--bg);border-radius:12px;padding:12px;text-align:center}
.big-temp b{display:block;font-size:30px}.big-temp small{color:var(--muted)}
.stepper{display:flex;align-items:center;gap:10px;justify-content:center}
.stepper button{width:52px;height:52px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:26px;font-weight:700}
.stepper .val{font-size:30px;font-weight:800;min-width:110px;text-align:center}
.status-line{display:flex;gap:8px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:700;border-radius:999px;padding:4px 10px;background:var(--grey-soft);color:var(--muted)}
.tag.heat{background:var(--heat-soft);color:#b0541a}.tag.ok{background:var(--ok-soft);color:#167a42}.tag.cold{background:var(--cold-soft);color:#1d5ea8}.tag.red{background:var(--red-soft);color:var(--red)}.tag.blue{background:var(--blue-soft);color:#174a8c}
.dev-list{display:flex;flex-direction:column;gap:6px}
.dev{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:10px;padding:8px 10px;font-size:14px}
.dev .grow{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dot{width:9px;height:9px;border-radius:50%;background:var(--grey);flex:0 0 9px}.dot.on{background:var(--ok)}.dot.off{background:var(--red)}
fieldset{border:1px solid var(--line);border-radius:12px;padding:12px;margin:0}
legend{font-weight:700;padding:0 6px}
.checks{display:flex;flex-direction:column;gap:4px;max-height:220px;overflow:auto}
.checks label{display:flex;gap:8px;align-items:center;font-size:14px;padding:4px}
.checks label small{color:var(--muted);margin-left:auto}
.field{display:flex;flex-direction:column;gap:5px;font-size:14px;font-weight:600}
.field input,.field select{border:1px solid var(--line);border-radius:10px;padding:9px 11px;font-weight:400;background:#fff}

/* Tabellen */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;padding:10px 12px;border-bottom:1px solid var(--line);background:#fafbfd;white-space:nowrap}
td{padding:9px 12px;border-bottom:1px solid #edf1f6;vertical-align:middle}
tr:last-child td{border-bottom:0}
tr.click{cursor:pointer}tr.click:hover td{background:#f7f9fc}
.num{font-variant-numeric:tabular-nums;white-space:nowrap}
.floor-head td{background:#f2f5f9;font-weight:700}

/* Einstellungen */
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.sched{display:grid;grid-template-columns:auto minmax(0,1fr) minmax(0,1fr) auto;gap:8px;align-items:center}
.sched input[type=time]{border:1px solid var(--line);border-radius:8px;padding:6px 6px;width:100%;min-width:0}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}

.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--navy);color:#fff;padding:12px 18px;border-radius:12px;z-index:50;font-weight:600;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.toast.err{background:var(--red)}
.log-row{display:flex;gap:12px;padding:6px 0;border-bottom:1px solid #edf1f6;font-size:14px}
.log-row time{color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.log-row.warn span{color:#b0541a}.log-row.error span{color:var(--red);font-weight:600}.log-row.ok span{color:var(--ok)}

@media (max-width:760px){
  main{padding:12px}
  .top{padding:10px 12px}
  .tabs{order:3;flex-basis:100%;overflow-x:auto;flex-wrap:nowrap}
  .tabs button{white-space:nowrap}
}