*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f0f4f8;
  --panel: #ffffff;
  --panel-border: #e2e8f0;
  --accent: #2563eb;
  --accent-light: #dbeafe;
  --accent-hover: #1d4ed8;
  --danger: #dc2626;
  --danger-light: #fee2e2;
  --text: #1e293b;
  --text2: #64748b;
  --text3: #94a3b8;
  --grid-line: #e8edf4;
  --rail-bg: #f1f5f9;
  --rail-border: #cbd5e1;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 20px rgba(0,0,0,0.07), 0 4px 6px rgba(0,0,0,0.04);
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  user-select: none;
}

/* ── HEADER ── */
header {
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  height: 52px;
  box-shadow: var(--shadow-sm);
  z-index: 20;
}
header h1 {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.toolbar { display: flex; gap: 4px; align-items: center; }

/* ── DISCLAIMER ── */
.disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  justify-content: center;
  background: #fefce8;
  border-bottom: 1px solid #fde68a;
  padding: 7px 20px;
  font-size: 11px;
  color: #78350f;
  line-height: 1.5;
  flex-shrink: 0;
  text-align: center;
}
.disclaimer span { max-width: 860px; }
.disclaimer-icon { flex-shrink: 0; margin-top: 1px; }
.toolbar-label { font-size: 11px; color: var(--text2); font-weight: 500; white-space: nowrap; }

button {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 5px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: background 0.12s, border-color 0.12s;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}
button:hover { background: #f8fafc; border-color: #cbd5e1; }
button.active { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: none; }
button.active:hover { background: var(--accent-hover); }
button.danger { color: var(--danger); border-color: #fca5a5; }
button.danger:hover { background: var(--danger-light); border-color: var(--danger); }

select {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 5px 8px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.sep { width: 1px; background: var(--panel-border); align-self: stretch; margin: 8px 4px; }
.mode-badge {
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  display: none;
}
.mode-badge.show { display: inline-block; }

/* ── MAIN ── */
.main { display: flex; flex: 1; overflow: hidden; }

/* ── PALETTE ── */
.palette {
  width: 162px;
  background: var(--panel);
  border-right: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  padding: 12px 8px;
  overflow-y: auto;
  flex-shrink: 0;
}
.pal-section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text3);
  margin: 12px 4px 6px;
}
.pal-section-title:first-child { margin-top: 0; }
.pal-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 8px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  cursor: grab;
  transition: border-color 0.12s, background 0.12s, box-shadow 0.12s;
  font-size: 12px;
  color: var(--text);
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  margin-bottom: 4px;
}
.pal-item:hover {
  border-color: var(--accent);
  background: var(--accent-light);
  box-shadow: var(--shadow-md);
}

/* ── CANVAS ── */
.canvas-wrap { flex: 1; overflow: auto; background: var(--bg); padding: 20px; }
#canvas {
  position: relative;
  cursor: default;
  background: var(--panel);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--panel-border);
}

/* ── PROPS ── */
.props {
  width: 210px;
  background: var(--panel);
  border-left: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  padding: 16px 12px;
  gap: 10px;
  flex-shrink: 0;
  overflow-y: auto;
}
.props-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text3);
}
.props-subtitle {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text3);
  margin-top: 4px;
}
.prop-row { display: flex; flex-direction: column; gap: 4px; }
.prop-row label { font-size: 11px; color: var(--text2); font-weight: 500; }
.prop-row input,
.prop-row select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 12px;
  transition: border-color 0.12s;
}
.prop-row input:focus,
.prop-row select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}
.prop-row input[readonly] { opacity: 0.5; cursor: not-allowed; }
.no-sel { color: var(--text3); font-size: 12px; line-height: 1.6; }
.props-divider { height: 1px; background: var(--panel-border); }
.prop-delete-btn {
  background: var(--danger-light);
  border: 1px solid #fca5a5;
  color: var(--danger);
  padding: 7px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  width: 100%;
  text-align: center;
  transition: background 0.12s;
}
.prop-delete-btn:hover { background: #fecaca; }

/* ── SVG CANVAS ── */
#svgCanvas {
  position: absolute;
  top: 0; left: 0;
  pointer-events: none;
  overflow: visible;
  border-radius: 12px;
}

/* ── GRID ── */
.grid-bg {
  position: absolute;
  top: 0; left: 0;
  display: grid;
  border-radius: 12px;
  overflow: hidden;
  pointer-events: none;
}
.grid-cell {
  /* grid lines hidden */
}
.grid-cell.drop-target { background: rgba(37,99,235,0.07); }

/* ── RAIL ── */
.rail {
  position: absolute;
  background: var(--rail-bg);
  border: 1.5px solid var(--rail-border);
  border-radius: 6px;
  display: flex;
  align-items: stretch;
  cursor: default;
  transition: border-color 0.12s, box-shadow 0.12s;
}
.rail:hover { border-color: #93c5fd; }
.rail.selected { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }
.rail.dragging { opacity: 0.85; box-shadow: var(--shadow-md); border-color: var(--accent); }

.rail-handle {
  width: 52px;
  flex-shrink: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: ew-resize;
  border-right: 1.5px solid var(--rail-border);
  border-radius: 4px 0 0 4px;
  transition: background 0.12s;
}
.rail-handle:hover { background: rgba(37,99,235,0.1); border-right-color: var(--accent); }
.rail-handle:active { background: rgba(37,99,235,0.18); }

.rail-handle-delete {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 18px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--text3);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
  pointer-events: all;
}
.rail-handle-delete:hover { background: var(--danger-light); color: var(--danger); border-color: #fca5a5; }

.rail-handle-name {
  position: absolute;
  top: 5px;
  left: 0;
  right: 0;
  font-size: 8px;
  font-weight: 700;
  color: var(--text2);
  text-align: center;
  padding: 0 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.rail-resize {
  position: absolute;
  left: 100%;
  top: -1.5px;
  bottom: -1.5px;
  width: 22px;
  cursor: ew-resize;
  background: var(--rail-bg);
  border-top: 1.5px solid var(--rail-border);
  border-right: 1.5px solid var(--rail-border);
  border-bottom: 1.5px solid var(--rail-border);
  border-left: 1.5px solid var(--rail-border);
  border-radius: 0 4px 4px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.12s;
  z-index: 2;
}
.rail-resize:hover { background: rgba(37,99,235,0.1); border-color: var(--accent); }
.rail-resize:active { background: rgba(37,99,235,0.18); }

.rail-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 6px 8px;
}

.rail-label {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text2);
  pointer-events: none;
}

.comp.off-rail,
.comp.overlapping {
  border-color: #ef4444 !important;
  background: repeating-linear-gradient(
    -45deg,
    #fff 0px,
    #fff 6px,
    #fee2e2 6px,
    #fee2e2 12px
  ) !important;
}

/* ── COMPONENT RESIZE HANDLES ── */
.comp-resize {
  position: absolute;
  top: 20%;
  bottom: 20%;
  width: 8px;
  cursor: ew-resize;
  z-index: 7;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s;
}
.comp:hover .comp-resize,
.comp.selected .comp-resize { opacity: 1; }
.comp-resize-left  { left: -4px; }
.comp-resize-right { right: -4px; }
.comp-resize::after {
  content: '';
  width: 3px;
  height: 60%;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0.7;
}
.comp-resize:hover::after { opacity: 1; width: 4px; }

/* ── COMPONENT ── */
.comp {
  position: absolute;
  background: #fff;
  border: 2px solid var(--panel-border);
  border-radius: 7px;
  overflow: visible;
  cursor: pointer;
  transition: border-color 0.12s, box-shadow 0.12s;
  box-shadow: var(--shadow-sm);
}
.comp:hover   { box-shadow: var(--shadow-md); }
.comp.selected  { box-shadow: 0 0 0 3px rgba(37,99,235,0.25); }
.comp.energized { box-shadow: 0 0 0 3px rgba(217,119,6,0.25); }

.comp[data-type="kabel"] {
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
}
.comp[data-type="kabel"]:hover { box-shadow: 0 0 0 2px rgba(148,163,184,0.4) !important; }
.comp[data-type="kabel"].selected { box-shadow: 0 0 0 3px rgba(37,99,235,0.25) !important; }

.contact.contact-kabel {
  position: absolute;
  transform: translate(-50%, -50%);
  z-index: 6;
  pointer-events: none;
  display: block;
  width: 13px;
  height: 13px;
  overflow: visible;
}
.contact.contact-kabel .contact-lbl {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
}
.comp[data-type="hoofdschakelaar"]:hover { border-color: #ef4444; }
.comp[data-type="aardlek"]  { border-color: #86efac; }
.comp[data-type="aardlek"]:hover  { border-color: #22c55e; }
.comp[data-type="automaat"] { border-color: #93c5fd; }
.comp[data-type="automaat"]:hover { border-color: #3b82f6; }
.comp.selected  { border-color: var(--accent) !important; }
.comp.energized { border-color: #d97706 !important; }

.comp-body {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: visible;
}
.comp-labels-top {
  position: absolute;
  top: 22px;
  left: 2px; right: 2px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
}
.comp-svg-wrap {
  position: absolute;
  top: 42px; bottom: 42px;
  left: 2px; right: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.comp-labels-bot {
  position: absolute;
  bottom: 18px;
  left: 2px; right: 2px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
}
.comp-label, .comp-label2 {
  font-size: 7.5px;
  font-weight: 700;
  color: #64748b;
  text-align: center;
  line-height: 1.2;
  word-break: break-word;
  max-width: 100%;
  min-height: 9px;
  pointer-events: all;
  cursor: text;
}
.comp-sublabel, .comp-sublabel2 {
  font-size: 7.5px;
  font-weight: 700;
  color: #64748b;
  text-align: center;
  min-height: 9px;
  pointer-events: all;
  cursor: text;
}

/* ── CONTACTS ── */
.contact {
  position: absolute;
  transform: translate(-50%, -50%);
  z-index: 6;
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
}
.contact.contact-bottom { flex-direction: column-reverse; }

.contact-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #1e293b;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1.5px #1e293b;
  flex-shrink: 0;
  pointer-events: all;
  cursor: crosshair;
  transition: background 0.1s, box-shadow 0.1s, transform 0.1s;
}
.contact-dot:hover  { background: #3b82f6; box-shadow: 0 0 0 1.5px #3b82f6; transform: scale(1.25); }
.contact-dot.wiring { background: #2563eb; box-shadow: 0 0 0 3px rgba(37,99,235,0.3); transform: scale(1.25); cursor: grabbing; }
.contact-dot.connected { background: #16a34a; box-shadow: 0 0 0 1.5px #16a34a; }

.contact-lbl {
  font-size: 7.5px;
  font-weight: 700;
  color: #64748b;
  line-height: 1;
  pointer-events: all;
  cursor: text;
  margin: 8px 0;
}

.comp-label-input {
  font-size: 9px;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--accent);
  outline: none;
  padding: 0 2px;
  pointer-events: all;
  cursor: text;
}

/* ── WIRES ── */
.wire {
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  pointer-events: stroke;
  cursor: pointer;
  stroke-width: 3.5;
  transition: stroke-width 0.12s;
}
.wire:hover   { stroke-width: 5.5; }
.wire.selected  { stroke-width: 5.5; }
.wire.animated  { stroke-dasharray: 12 6; animation: flowAnim 0.5s linear infinite; }

@keyframes flowAnim { to { stroke-dashoffset: -18; } }

.wire-L-brown { stroke: #92400e; }
.wire-L-black { stroke: #171717; }
.wire-N       { stroke: #1d4ed8; }
.wire-grond   { stroke: #16a34a; }

.wire-handle {
  fill: #3b82f6;
  fill-opacity: 0.18;
  stroke: #3b82f6;
  stroke-width: 1.5;
  pointer-events: all;
}
.wire-handle:hover { fill-opacity: 0.45; }

#tempWire {
  stroke: var(--accent);
  stroke-width: 2;
  stroke-dasharray: 6 4;
  fill: none;
  pointer-events: none;
  opacity: 0.8;
}

/* ── STATUS TOAST ── */
#status {
  position: fixed;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: #fff;
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s;
  white-space: nowrap;
  box-shadow: var(--shadow-md);
}
#status.show { opacity: 1; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }

/* ── METERCAST LIST ── */
.mc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.mc-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text3);
}
.mc-add-btn {
  width: 20px;
  height: 20px;
  padding: 0;
  border-radius: 4px;
  font-size: 16px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;
  color: var(--text2);
}
.mc-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mc-item {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 8px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s;
}
.mc-item:hover { background: var(--accent-light); border-color: #bfdbfe; }
.mc-item.active { background: var(--accent-light); border-color: var(--accent); }
.mc-item.active .mc-name { color: var(--accent); font-weight: 700; }
.mc-name {
  flex: 1;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.mc-del-btn {
  width: 16px;
  height: 16px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text3);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  box-shadow: none;
  opacity: 0;
  transition: opacity 0.1s, background 0.1s, color 0.1s;
  flex-shrink: 0;
}
.mc-item:hover .mc-del-btn { opacity: 1; }
.mc-del-btn:hover { background: var(--danger-light); color: var(--danger); }
.mc-name-input {
  flex: 1;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--accent);
  outline: none;
  padding: 0 2px;
  min-width: 0;
}
.palette-sep {
  height: 1px;
  background: var(--panel-border);
  margin: 10px 0 12px;
}

/* ── VERBRUIKERS SIDEBAR SECTION ── */
.vb-section { margin-top: 8px; }
.vb-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s;
  border: 1px solid transparent;
}
.vb-header:hover { background: var(--accent-light); border-color: #bfdbfe; }
.vb-header.active { background: var(--accent-light); border-color: var(--accent); }
.vb-header.active .mc-title { color: var(--accent); }

/* ── VERBRUIKERS MAIN VIEW ── */
.vb-view {
  flex: 1;
  overflow: auto;
  background: var(--bg);
  padding: 20px;
  flex-direction: column;
}
.vb-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-content: flex-start;
}
.vb-empty {
  color: var(--text3);
  font-size: 13px;
  padding: 60px 20px;
  text-align: center;
  width: 100%;
}

/* ── VERBRUIKER CARD ── */
.vb-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
  width: 272px;
  flex-shrink: 0;
  transition: box-shadow 0.15s;
}
.vb-card:hover { box-shadow: var(--shadow-md); }

.vb-card-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px 9px;
  border-bottom: 1px solid var(--panel-border);
  background: #f8fafc;
  border-radius: 10px 10px 0 0;
}
.vb-name {
  flex: 1;
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  background: transparent;
  border: none;
  border-bottom: 1.5px solid transparent;
  outline: none;
  min-width: 0;
  padding: 1px 2px;
  transition: border-color 0.12s;
}
.vb-name:focus { border-bottom-color: var(--accent); }

.vb-del-btn {
  width: 20px;
  height: 20px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text3);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  box-shadow: none;
  flex-shrink: 0;
  transition: background 0.1s, color 0.1s;
}
.vb-del-btn:hover { background: var(--danger-light); color: var(--danger); }

.vb-card-body {
  padding: 10px 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.vb-sep {
  height: 1px;
  background: var(--panel-border);
  margin: 2px 0;
}
.vb-field { display: flex; flex-direction: column; gap: 3px; }
.vb-field label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.vb-calc-badge {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  background: #e0f2fe;
  color: #0369a1;
  padding: 1px 5px;
  border-radius: 3px;
}
.vb-field input,
.vb-field select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 5px 8px;
  border-radius: 6px;
  font-size: 12px;
  transition: border-color 0.12s;
}
.vb-field input:focus,
.vb-field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}
.vb-input-unit { display: flex; align-items: center; }
.vb-input-unit input {
  border-radius: 6px 0 0 6px;
  border-right: none;
  flex: 1;
}
.vb-input-unit input:focus { border-right: none; }
.vb-input-unit > span {
  background: #f1f5f9;
  border: 1px solid var(--panel-border);
  padding: 5px 9px;
  border-radius: 0 6px 6px 0;
  font-size: 11px;
  font-weight: 600;
  color: var(--text2);
  white-space: nowrap;
  flex-shrink: 0;
}
.vb-calc-wrap input {
  background: #f0f9ff;
  color: var(--text2);
  cursor: default;
  font-weight: 600;
}