/* Schaltplan-Simulator – Oberfläche
   Schaltzeichen werden schwarz auf hellem Grund gezeichnet, so wie ein
   Schaltplan auf Papier aussieht. Die Bedienelemente ringsum sind dunkel,
   damit der Plan selbst der hellste Bereich bleibt. */

:root {
  --bg: #14181d;
  --bg2: #1b2027;
  --bg3: #232a33;
  --line: #313a45;
  --fg: #e6ebf1;
  --fg-dim: #97a3b2;
  --accent: #4da3ff;
  --accent2: #2b7fd4;
  --ok: #46c07a;
  --warn: #e8b23a;
  --err: #ef5d5d;
  --paper: #fbfbf8;
  --ink: #14181d;
  --grid: #dfe3e6;
  --strom: #1e8fe0;
  --kurz: #e02b2b;

  --sw: 0.75;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; height: 100%;
  background: var(--bg); color: var(--fg);
  font: 14px/1.45 "Segoe UI", system-ui, -apple-system, sans-serif;
  overflow: hidden;
}

button {
  font: inherit; color: inherit; cursor: pointer;
  background: var(--bg3); border: 1px solid var(--line);
  border-radius: 6px; padding: 5px 10px;
}
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent2); border-color: var(--accent2); color: #fff; }
button.primary:hover { background: var(--accent); }
button.ghost { background: transparent; }
button:disabled { opacity: .4; cursor: default; }

input[type=text], input[type=number], select {
  font: inherit; color: var(--fg); background: var(--bg);
  border: 1px solid var(--line); border-radius: 5px; padding: 4px 6px; width: 100%;
}
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.hidden { display: none !important; }

/* ---------------- Kopfzeile ---------------- */

.topbar {
  display: flex; align-items: center; gap: 16px;
  height: 48px; padding: 0 14px;
  background: var(--bg2); border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; letter-spacing: .2px; }
.brand svg { color: var(--accent); }
.topactions { margin-left: auto; display: flex; gap: 6px; }

.modeswitch { display: flex; background: var(--bg); border: 1px solid var(--line); border-radius: 7px; padding: 2px; }
.modeswitch button { background: transparent; border: none; padding: 4px 14px; border-radius: 5px; color: var(--fg-dim); }
.modeswitch button.active { background: var(--accent2); color: #fff; }

/* ---------------- Layout ---------------- */

.layout {
  display: grid;
  grid-template-columns: 220px 1fr 320px;
  height: calc(100% - 48px);
}

.palette, .inspector {
  background: var(--bg2); overflow-y: auto;
  display: flex; flex-direction: column;
}
.palette { border-right: 1px solid var(--line); }
.inspector { border-left: 1px solid var(--line); }

.panel-head {
  padding: 9px 12px; font-weight: 600; font-size: 12px;
  text-transform: uppercase; letter-spacing: .8px; color: var(--fg-dim);
  border-bottom: 1px solid var(--line);
}
.panel-head.small { padding: 5px 10px; }
.palette-hint { padding: 8px 12px; font-size: 11.5px; color: var(--fg-dim); }

.cat { padding: 8px 12px 2px; font-size: 11px; text-transform: uppercase;
       letter-spacing: .6px; color: var(--fg-dim); }
.pitem {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 10px; margin: 1px 6px; border-radius: 6px;
  cursor: grab; user-select: none; font-size: 13px;
}
.pitem:hover { background: var(--bg3); }
.pitem.armed { background: var(--accent2); color: #fff; }
.pitem svg { background: var(--paper); border-radius: 4px; flex: none; }
.pitem .nn { font-size: 10px; color: var(--warn); }

/* ---------------- Bühne ---------------- */

.stage { display: flex; flex-direction: column; min-width: 0; }

.stagebar {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px; background: var(--bg2); border-bottom: 1px solid var(--line);
  min-height: 42px; flex-wrap: wrap;
}
.stagebar .group { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.stagebar .sep { width: 1px; height: 20px; background: var(--line); }
.chk { display: flex; align-items: center; gap: 5px; font-size: 12.5px; color: var(--fg-dim); }
.chk input { width: auto; }
.slider { display: flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--fg-dim); }
.slider input { width: 110px; }
.simclock { font-variant-numeric: tabular-nums; color: var(--fg-dim); font-size: 12.5px; }

.canvaswrap { position: relative; flex: 1; min-height: 0; background: var(--paper); }
#canvas { width: 100%; height: 100%; display: block; touch-action: none; cursor: crosshair; }

.banner {
  position: absolute; top: 12px; left: 50%; transform: translateX(-50%);
  background: var(--kurz); color: #fff; padding: 7px 16px; border-radius: 7px;
  font-weight: 600; box-shadow: 0 4px 16px rgba(0,0,0,.35); pointer-events: none;
  animation: blink 1s steps(2, jump-none) infinite;
}
.banner.info { background: var(--accent2); animation: none; }
.banner.warn { background: var(--warn); color: #241c00; animation: none; }
@keyframes blink { 50% { opacity: .45; } }

.tooltip {
  position: absolute; pointer-events: none; z-index: 5;
  background: rgba(20,24,29,.95); color: var(--fg);
  border: 1px solid var(--line); border-radius: 6px;
  padding: 6px 9px; font-size: 12px; max-width: 260px;
  box-shadow: 0 6px 18px rgba(0,0,0,.4);
}
.tooltip b { color: var(--accent); }

.eventbar { max-height: 150px; overflow-y: auto; background: var(--bg2); border-top: 1px solid var(--line); }
.eventbar ul { list-style: none; margin: 0; padding: 4px 10px 8px; }
.eventbar li { font-size: 12.2px; padding: 3px 0; border-bottom: 1px solid var(--bg3); }
.eventbar li .t { color: var(--fg-dim); font-variant-numeric: tabular-nums; margin-right: 8px; }
.eventbar li.ausloesung { color: var(--err); }
.eventbar li.info { color: var(--fg-dim); }

/* ---------------- Inspektor ---------------- */

.tabbar { display: flex; border-bottom: 1px solid var(--line); }
.tabbar button {
  flex: 1; border: none; background: transparent; border-radius: 0;
  padding: 9px 4px; font-size: 12.5px; color: var(--fg-dim);
  border-bottom: 2px solid transparent;
}
.tabbar button.active { color: var(--fg); border-bottom-color: var(--accent); }
.tabpage { padding: 10px 12px; overflow-y: auto; flex: 1; }

.field { margin-bottom: 9px; }
.field label { display: block; font-size: 11.5px; color: var(--fg-dim); margin-bottom: 3px; }
.field .unit { color: var(--fg-dim); font-size: 11px; }
.field .hint { font-size: 11px; color: var(--fg-dim); margin-top: 3px; line-height: 1.35; }
.row { display: flex; gap: 6px; align-items: center; }

.mtable { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.mtable th { text-align: left; color: var(--fg-dim); font-weight: 500; padding: 3px 0; font-size: 11.5px; }
.mtable td { padding: 3px 0; font-variant-numeric: tabular-nums; }
.mtable td.v { text-align: right; }
.mtable tr.head td { padding-top: 10px; font-weight: 600; color: var(--accent); }

.issue { display: flex; gap: 7px; padding: 6px 0; border-bottom: 1px solid var(--bg3); font-size: 12.5px; line-height: 1.35; }
.issue .dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 5px; flex: none; }
.issue.fehler .dot { background: var(--err); }
.issue.warnung .dot { background: var(--warn); }
.issue.hinweis .dot { background: var(--fg-dim); }
.issue.ok .dot { background: var(--ok); }

.formel {
  background: var(--bg); border: 1px solid var(--line); border-radius: 6px;
  padding: 8px 10px; margin: 8px 0; font-size: 12.4px; line-height: 1.55;
}
.formel .f { font-family: "Cambria Math", Georgia, serif; font-size: 14px; color: var(--accent); }
.formel .step { color: var(--fg-dim); }
.formel .res { font-weight: 600; }

.empty { color: var(--fg-dim); font-size: 12.5px; padding: 12px 0; line-height: 1.5; }

/* ---------------- Modal ---------------- */

.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.6);
  display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px;
}
.modal-box {
  background: var(--bg2); border: 1px solid var(--line); border-radius: 10px;
  max-width: 780px; width: 100%; max-height: 86vh; overflow-y: auto;
  padding: 22px 26px; position: relative;
}
.modal-close { position: absolute; top: 10px; right: 12px; background: transparent; border: none; font-size: 22px; line-height: 1; }
.modal h2 { margin: 0 0 4px; font-size: 19px; }
.modal h3 { margin: 18px 0 6px; font-size: 14px; color: var(--accent); }
.modal p, .modal li { font-size: 13.4px; line-height: 1.6; color: var(--fg); }
.modal ul { padding-left: 20px; }
.cardgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; margin-top: 12px; }
.card {
  background: var(--bg3); border: 1px solid var(--line); border-radius: 8px;
  padding: 11px 13px; cursor: pointer; text-align: left;
}
.card:hover { border-color: var(--accent); }
.card b { display: block; margin-bottom: 3px; }
.card span { font-size: 12px; color: var(--fg-dim); line-height: 1.4; }

/* ---------------- Zeichnung ---------------- */

#canvas .grid { stroke: var(--grid); stroke-width: .18; fill: none; }

#canvas .comp { stroke: var(--ink); stroke-width: var(--sw); fill: none;
                stroke-linecap: round; stroke-linejoin: round; }
#canvas .comp .sym-fill { fill: var(--ink); stroke: none; }
#canvas .comp .sym-open { fill: none; }
#canvas .comp .sym-mask { fill: var(--paper); stroke: none; }
#canvas .comp .sym-text { fill: var(--ink); stroke: none; font-family: "Segoe UI", sans-serif; }
#canvas .comp .pin { fill: #7a8794; stroke: none; }
#canvas .comp .sym-glow { fill: #ffd24d; stroke: none; }
#canvas .comp .sym-lit { stroke: #b8860b; }
#canvas .comp .sym-blown { stroke: var(--kurz); stroke-width: 1; }
#canvas .comp .sym-fault { stroke: var(--kurz); }
#canvas .comp .sym-fault.sym-fill { fill: var(--kurz); }

#canvas .comp-selected { stroke: var(--accent2); }
#canvas .comp-selected .sym-fill { fill: var(--accent2); }
#canvas .comp-selected .sym-text { fill: var(--accent2); }
#canvas .comp-tripped { stroke: var(--kurz); }
#canvas .comp-tripped .sym-fill { fill: var(--kurz); }

#canvas .wire { stroke: var(--ink); stroke-width: var(--sw); fill: none; }
#canvas .wire-stromlos { stroke: #9aa4ad; }
#canvas .wire-aktiv { stroke: var(--strom); }
#canvas .wire-kurzschluss { stroke: var(--kurz); stroke-width: 1.4; animation: blink .35s steps(2, jump-none) infinite; }
#canvas .wire-pending { stroke: var(--accent); stroke-width: .8; stroke-dasharray: 2 2; }
#canvas .pin-hover { fill: none; stroke: var(--accent); stroke-width: .8; }

#canvas .lbl { fill: var(--ink); stroke: none; font-size: 4.4px; font-family: "Segoe UI", sans-serif; }
#canvas .lbl .lbl-name { font-weight: 600; }
#canvas .lbl .lbl-wert { fill: #5a6570; font-size: 4px; }
#canvas .lbl-mess { fill: var(--strom); stroke: none; font-size: 4.2px;
                    font-weight: 600; font-family: "Segoe UI", sans-serif;
                    font-variant-numeric: tabular-nums; }

#canvas .flow { fill: var(--strom); stroke: none; }
#canvas .flow-kurzschluss { fill: var(--kurz); }

/* ---------------- Druck / PDF ---------------- */

@media print {
  .topbar, .palette, .inspector, .stagebar, .eventbar, .modal { display: none !important; }
  html, body, .layout, .stage, .canvaswrap { height: auto; overflow: visible; background: #fff; }
  .layout { display: block; }
  #canvas { height: 90vh; }
  #canvas .lbl, #canvas .comp .sym-text { fill: #000; }
}

/* ---------------- Schmale Fenster ---------------- */

@media (max-width: 1100px) {
  .layout { grid-template-columns: 170px 1fr 260px; }
}
@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr auto; }
  .palette { flex-direction: row; overflow-x: auto; max-height: 108px; }
  .palette .panel-head, .palette-hint { display: none; }
  #palette-list { display: flex; gap: 6px; }
  .inspector { max-height: 40vh; }
}