@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #121826;
  --bg-panel: rgba(22, 30, 49, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.2);
  
  --color-victron-blue: #0062b1;
  --color-victron-blue-hover: #007adb;
  --color-victron-orange: #e05300;
  --color-victron-orange-hover: #ff640a;
  
  --color-pos: #ef4444; /* Positive red */
  --color-neg: #38bdf8; /* Negative blue */
  --color-data: #a855f7; /* Communication purple */
  --color-ac: #e2e8f0; /* AC silver */
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --font-sans: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 15px rgba(5b, 99, 246, 0.15);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Header */
header {
  height: 60px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 10;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-victron-blue), var(--color-victron-orange));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: white;
  font-size: 16px;
  box-shadow: 0 0 15px rgba(0, 98, 177, 0.4);
}

.logo-text h1 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.logo-text span {
  font-size: 10px;
  color: var(--text-secondary);
  display: block;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: -2px;
}

.header-actions {
  display: flex;
  gap: 12px;
}

.btn {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 16px;
  border-radius: 6px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--border-hover);
}

.btn-primary {
  background-color: var(--color-victron-blue);
  border-color: transparent;
}

.btn-primary:hover {
  background-color: var(--color-victron-blue-hover);
}

.btn-accent {
  background-color: var(--color-victron-orange);
  border-color: transparent;
}

.btn-accent:hover {
  background-color: var(--color-victron-orange-hover);
}

/* App Layout */
.app-container {
  flex: 1;
  display: grid;
  grid-template-columns: 280px 1fr 320px;
  overflow: hidden;
  position: relative;
}

/* Panels Common */
.panel {
  background-color: var(--bg-panel);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 5;
}

.panel-right {
  border-right: none;
  border-left: 1px solid var(--border-color);
}

.panel-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-header h2 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Sidebar Component Library */
.component-search {
  padding: 12px;
  border-bottom: 1px solid var(--border-color);
}

.search-input {
  width: 100%;
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  outline: none;
}

.search-input:focus {
  border-color: var(--color-victron-blue);
}

.category-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Collapsible Category Accordion */
.category-group {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.01);
}

.category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  cursor: pointer;
  user-select: none;
  transition: all 0.2s ease;
  border-bottom: 1px solid transparent;
  border-left: 3px solid rgba(255, 255, 255, 0.1);
  background-color: rgba(255, 255, 255, 0.02);
}

.category-header:hover {
  background-color: rgba(255, 255, 255, 0.06);
  border-left-color: var(--color-victron-blue);
}

.category-group.expanded > .category-header {
  border-bottom-color: var(--border-color);
  background-color: rgba(0, 98, 177, 0.08); /* Muted Victron blue tint */
  border-left-color: var(--color-victron-blue);
}

.category-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.category-chevron {
  font-size: 10px;
  color: var(--text-secondary);
  transition: transform 0.25s ease;
  flex-shrink: 0;
  width: 14px;
  text-align: center;
}

.category-group.expanded > .category-header .category-chevron {
  transform: rotate(90deg);
}

.category-header h3 {
  font-size: 12px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.8px;
  margin: 0;
  line-height: 1;
  font-weight: 600;
}

.category-group.expanded > .category-header h3 {
  color: #ffffff;
}

.category-count {
  font-size: 10px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 6px;
  border-radius: 10px;
  line-height: 1;
  flex-shrink: 0;
}

.category-body {
  display: none;
  background-color: rgba(255, 255, 255, 0.12); /* Much lighter container well to contrast child components */
  border-bottom-left-radius: 7px;
  border-bottom-right-radius: 7px;
  padding: 4px 0 12px 0;
}

.category-group.expanded > .category-body {
  display: block;
}

/* Subcategory grouping within a category */
.subcategory-group {
  padding: 0 8px;
}

.subcategory-group:last-child {
  padding-bottom: 8px;
}

.subcategory-header {
  font-size: 10.5px;
  text-transform: uppercase;
  color: #38bdf8; /* Distinct light blue accent color */
  letter-spacing: 0.8px;
  padding: 14px 4px 6px 4px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

.subcategory-header::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(56, 189, 248, 0.25); /* Muted blue border line */
}

.subcategory-chevron {
  font-size: 8px;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  display: inline-block;
}

.subcategory-group.expanded .subcategory-chevron {
  transform: rotate(90deg);
}

.subcategory-group .components-grid {
  display: none;
}

.subcategory-group.expanded .components-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.draggable-component {
  background-color: var(--bg-secondary); /* Solid dark background */
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 10px 12px;
  cursor: grab;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.2s ease;
  user-select: none;
}

.draggable-component:hover {
  background-color: rgba(30, 41, 59, 0.9); /* Slightly lighter on hover */
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateX(3px); /* Slide highlight to the right */
}

.draggable-component:active {
  cursor: grabbing;
}

.draggable-component.selected {
  border-color: var(--color-victron-orange) !important;
  background-color: rgba(224, 83, 0, 0.1) !important;
  box-shadow: 0 0 10px rgba(224, 83, 0, 0.2);
}

.comp-icon-preview {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.comp-info-preview h4 {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 2px;
}

.comp-info-preview p {
  font-size: 11px;
  color: var(--text-secondary);
}

/* Canvas Area */
.canvas-area {
  position: relative;
  overflow: hidden;
  background-color: #020617; /* Very dark backdrop color for outside canvas boundaries */
  display: flex;
  flex-direction: column;
}

.canvas-container {
  flex: 1;
  position: relative;
  cursor: crosshair;
  overflow: hidden;
  background-color: #020617;
}

.canvas-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 5000px;
  height: 5000px;
  transform-origin: 0 0;
  box-sizing: border-box;
  background-color: #0b1329; /* Distinct blueprint-style blue for the active canvas area */
  border: 4px dashed rgba(59, 130, 246, 0.35); /* Prominent dashed border showing canvas boundaries */
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.9); /* Drop shadow to visually float the active canvas over the backdrop */
  background-image: 
    radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 0),
    radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 0);
  background-size: 20px 20px;
  background-position: 0 0, 10px 10px;
  /* Promote to its own GPU compositor layer so CSS transforms (pan/zoom) are
     handled entirely by the GPU and don't trigger a repaint of the 5000×5000
     canvas with its expensive box-shadow and gradient background. */
  will-change: transform;
}

.canvas-element {
  position: absolute;
  background-color: rgba(15, 23, 42, 0.85);
  border: 2px solid #3b82f6;
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  cursor: move;
  user-select: none;
  transition: box-shadow 0.2s, border-color 0.2s, z-index 0s;
  z-index: 1;
}

/* Raise component to front on hover so overlapping small components are always reachable */
.canvas-element:hover {
  z-index: 20 !important;
}

.canvas-element.selected {
  border-color: var(--color-victron-orange) !important;
  box-shadow: 0 0 15px rgba(224, 83, 0, 0.3), var(--shadow-lg);
  z-index: 25 !important;
}

.canvas-element-header {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-secondary);
  background-color: rgba(0, 0, 0, 0.3);
  padding: 3px 6px;
  border-bottom: 1px solid var(--border-color);
  border-top-left-radius: 6px;
  border-top-right-radius: 6px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 4px;
}

.canvas-element-header-labels {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
  overflow: hidden;
}

.canvas-element-name {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

.canvas-element-brand {
  font-size: 8px;
  font-weight: 400;
  color: var(--text-muted);
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
  letter-spacing: 0.03em;
}

.starter-badge {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  margin-top: 2px;
  padding: 1px 5px;
  background: rgba(245, 158, 11, 0.18);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.45);
  border-radius: 10px;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  line-height: 1.4;
  pointer-events: none;
}


.canvas-element-body {
  position: relative;
  width: 100%;
  height: calc(100% - 34px);
  padding: 8px;
}

/* Terminals */
.terminal {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: #475569;
  border: 2px fill #0f172a;
  cursor: pointer;
  z-index: 10;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s ease;
}

.terminal:hover {
  transform: translate(-50%, -50%) scale(1.4);
}

.terminal.type-positive {
  background-color: var(--color-pos);
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.6);
}

.terminal.type-negative {
  background-color: var(--color-neg);
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.6);
}

.terminal.type-data {
  background-color: var(--color-data);
  box-shadow: 0 0 8px rgba(168, 85, 247, 0.6);
}

.terminal.type-ac {
  background-color: var(--color-ac);
  box-shadow: 0 0 8px rgba(226, 232, 240, 0.6);
}

.terminal.type-dual {
  background-color: #eab308;
  box-shadow: 0 0 8px rgba(234, 179, 8, 0.6);
}

.terminal.type-ground {
  background-color: #16a34a;
  box-shadow: 0 0 8px rgba(22, 163, 74, 0.6);
}

.terminal-label {
  position: absolute;
  font-size: 8px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  pointer-events: none;
  white-space: nowrap;
}

.terminal-label.side-left {
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
}

.terminal-label.side-right {
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
}

.terminal-label.side-top {
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
}

.terminal-label.side-bottom {
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
}

/* SVG Connection Overlay */
.connections-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

.wire-path {
  fill: none;
  stroke-width: 4px;
  cursor: pointer;
  pointer-events: stroke;
  transition: stroke 0.2s, stroke-width 0.2s;
}

.wire-path.selected {
  stroke-width: 6px !important;
}

.wire-path.positive {
  stroke: var(--color-pos);
}

.wire-path.negative {
  stroke: var(--color-neg);
}

.wire-path.data {
  stroke: var(--color-data);
  stroke-width: 2px;
}

.wire-path.ac {
  stroke: var(--color-ac);
  stroke-dasharray: 4 4;
}

.wire-path.ground {
  stroke: #16a34a;
  stroke-dasharray: 6 3;
}

.wire-flow-dot {
  stroke-dasharray: 8 20;
}

@keyframes dashflow-forward {
  to {
    stroke-dashoffset: -28;
  }
}

@keyframes dashflow-reverse {
  to {
    stroke-dashoffset: 28;
  }
}

/* Wire Label on Canvas */
.wire-label-overlay {
  position: absolute;
  background-color: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--border-color);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-primary);
  pointer-events: auto;
  cursor: pointer;
  transform: translate(-50%, -50%);
  z-index: 3;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.wire-label-overlay.warning {
  border-color: #f97316;
  color: #f97316;
}

.wire-label-overlay span.warning-badge {
  background-color: rgba(249, 115, 22, 0.2);
  padding: 1px 3px;
  border-radius: 3px;
  font-size: 8px;
  font-weight: bold;
}

/* Sidebar Properties Editor */
.properties-panel {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.property-group {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.property-group h3 {
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 6px;
}

.control-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-item label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.control-input {
  background-color: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  outline: none;
}

.control-input:focus {
  border-color: var(--color-victron-blue);
}

.slider-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.slider-container input[type="range"] {
  flex: 1;
  accent-color: var(--color-victron-blue);
}

.slider-val {
  width: 50px;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 13px;
}

/* Bottom Stats / Simulation Panel */
.bottom-dashboard-wrapper {
  background-color: var(--bg-panel);
  border-top: 1px solid var(--border-color);
  z-index: 5;
  display: flex;
  flex-direction: column;
}

/* Metric toggle strip */
.dashboard-metric-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 24px 0;
}

/* Solar location bar */
.solar-location-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 24px 4px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-wrap: wrap;
}

.solar-loc-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  flex-shrink: 0;
}

.solar-loc-select {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 11px;
  font-family: inherit;
  padding: 3px 8px;
  cursor: pointer;
  flex-shrink: 0;
  max-width: 220px;
}

.solar-loc-select:focus {
  outline: none;
  border-color: var(--color-victron-blue);
}

.solar-month-strip {
  display: flex;
  gap: 2px;
  flex-wrap: nowrap;
}

.solar-month-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 9px;
  font-weight: 600;
  font-family: inherit;
  letter-spacing: 0.3px;
  padding: 3px 6px;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}

.solar-month-btn:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}

.solar-month-btn.solar-month-active {
  background: var(--color-victron-blue);
  border-color: var(--color-victron-blue);
  color: #fff;
}

.solar-psh-pill {
  padding: 2px 10px;
  border-radius: 10px;
  border: 1px solid;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background 0.3s, color 0.3s;
}


.dashboard-metric-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.metric-toggle {
  display: flex;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
}

.metric-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  padding: 4px 10px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  border-right: 1px solid var(--border-color);
}

.metric-btn:last-child {
  border-right: none;
}

.metric-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
}

.metric-btn.metric-btn-active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.bottom-dashboard {
  height: 118px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 8px 24px 12px;
  gap: 20px;
}


.stat-card {
  background-color: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 24px;
  font-weight: 700;
  font-family: var(--font-sans);
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}

.stat-value.battery-level {
  color: #10b981;
}


.stat-value span.sub {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.stat-footer {
  font-size: 11px;
  color: var(--text-secondary);
}

/* Modal style */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  width: 500px;
  max-width: 90%;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
}

.close-btn:hover {
  color: var(--text-primary);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: #1e293b;
  border: 1px solid #3b82f6;
  color: var(--text-primary);
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  display: none;
  animation: slide-up 0.3s ease;
}

@keyframes slide-up {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Connection Guide & Pulsing matching terminals */
@keyframes terminalPulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
    box-shadow: 0 0 0 0 rgba(234, 179, 8, 0.8), 0 0 8px rgba(234, 179, 8, 0.6);
  }
  70% {
    transform: translate(-50%, -50%) scale(1.35);
    box-shadow: 0 0 10px 8px rgba(234, 179, 8, 0), 0 0 0px rgba(234, 179, 8, 0);
  }
  100% {
    transform: translate(-50%, -50%) scale(1);
    box-shadow: 0 0 0 0 rgba(234, 179, 8, 0), 0 0 0px rgba(234, 179, 8, 0);
  }
}

.pulse-highlight {
  animation: terminalPulse 1.2s infinite ease-in-out !important;
  border: 1px solid #fff !important;
}

/* Switch styling for editor */
.switch-control {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 26px;
}

.switch-control input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #475569;
  transition: .3s;
  border-radius: 34px;
}

.switch-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

input:checked + .switch-slider {
  background-color: var(--color-victron-orange);
}

input:checked + .switch-slider:before {
  transform: translateX(24px);
}

/* Waypoint Handles */
.waypoint-handle {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-victron-orange);
  border: 2px solid white;
  cursor: move;
  z-index: 15;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.6);
  transition: transform 0.1s ease, background-color 0.1s ease;
}

.waypoint-handle:hover {
  transform: translate(-50%, -50%) scale(1.35);
  background-color: var(--color-victron-orange-hover);
  box-shadow: 0 0 8px var(--color-victron-orange);
}

/* Endpoint Handles */
.endpoint-handle {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: #0f172a;
  border: 3px solid var(--color-victron-orange);
  cursor: grab;
  z-index: 16;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 8px rgba(224, 83, 0, 0.6);
  transition: transform 0.1s ease, border-color 0.1s ease;
}

.endpoint-handle:hover {
  transform: translate(-50%, -50%) scale(1.25);
  border-color: #ffffff;
  box-shadow: 0 0 12px var(--color-victron-orange);
}

.endpoint-handle:active {
  cursor: grabbing;
}

/* Fuse Tooltips */
.fuse-info-tooltip-container {
  position: relative;
  display: inline-block;
  cursor: help;
  border-bottom: 1px dotted var(--text-muted);
}

.fuse-info-tooltip-text {
  visibility: hidden;
  width: 260px;
  background-color: #1e293b;
  color: #f8fafc;
  text-align: left;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  padding: 10px;
  position: absolute;
  z-index: 1000;
  bottom: 125%; /* Position above the text */
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  font-size: 11px;
  font-weight: normal;
  text-transform: none; /* Keep description mixed case */
  line-height: 1.4;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

.fuse-info-tooltip-container:hover .fuse-info-tooltip-text {
  visibility: visible;
  opacity: 1;
}

/* Tooltip arrow */
.fuse-info-tooltip-text::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: #1e293b transparent transparent transparent;
}

/* Right Panel Tabbed Header */
.tab-container {
  display: flex;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.tab-btn {
  flex: 1;
  padding: 12px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-weight: 600;
  cursor: pointer;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.02);
}

.tab-btn.active {
  border-bottom-color: var(--color-victron-blue);
  color: var(--text-primary);
}

.tab-badge {
  background-color: #ef4444;
  color: white;
  border-radius: 10px;
  padding: 2px 6px;
  font-size: 10px;
  font-weight: bold;
  line-height: 1;
  display: none;
}

/* Validation Cards */
.validation-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.validation-card {
  background-color: rgba(30, 41, 59, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}

.validation-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background-color: rgba(30, 41, 59, 0.6);
  transform: translateY(-1px);
}

.validation-card.error {
  border-left: 4px solid #ef4444;
  background-color: rgba(239, 68, 68, 0.04);
}

.validation-card.warning {
  border-left: 4px solid #f59e0b;
  background-color: rgba(245, 158, 11, 0.03);
}

.validation-card.info {
  border-left: 4px solid #3b82f6;
  background-color: rgba(59, 130, 246, 0.03);
}

.validation-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.validation-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
}

.validation-target {
  font-size: 10.5px;
  color: var(--color-victron-blue);
  cursor: pointer;
  text-decoration: underline;
  margin-top: 1px;
  display: inline-block;
}

.validation-target:hover {
  color: var(--color-victron-blue-hover);
}

.validation-desc {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.validation-action-btn {
  margin-top: 4px;
  align-self: flex-start;
  padding: 4px 8px;
  font-size: 10.5px;
  background-color: var(--color-victron-blue);
  border: 1px solid transparent;
  color: white;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  transition: background-color 0.15s ease;
  display: flex;
  align-items: center;
  gap: 4px;
}

.validation-action-btn:hover {
  background-color: var(--color-victron-blue-hover);
}

/* Validation Issue Notes */
.validation-note-wrap {
  margin-top: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 7px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.validation-note-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.validation-note-input {
  width: 100%;
  box-sizing: border-box;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  color: var(--text-secondary);
  font-size: 11px;
  font-family: inherit;
  line-height: 1.45;
  padding: 6px 8px;
  resize: vertical;
  transition: border-color 0.15s ease, background 0.15s ease;
  outline: none;
}

.validation-note-input:focus {
  border-color: rgba(100, 160, 220, 0.45);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text-primary);
}

.validation-note-input::placeholder {
  color: rgba(255, 255, 255, 0.2);
  font-style: italic;
}

.validation-note-badge {
  font-size: 11px;
  margin-left: 5px;
  opacity: 0.85;
  cursor: default;
}

/* Canvas Validation Highlights */
.canvas-element.has-error {
  border-color: #ef4444 !important;
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.4), var(--shadow-lg);
}

.canvas-element.has-warning {
  border-color: #f59e0b !important;
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.35), var(--shadow-lg);
}

.wire-path.error {
  stroke: #ef4444 !important;
}

.wire-path.warning {
  stroke: #f59e0b !important;
}

@keyframes highlightFlash {
  0%   { box-shadow: 0 0 0px  #e05300; transform: scale(1.0);  border-color: transparent !important; }
  15%  { box-shadow: 0 0 40px #e05300, 0 0 15px #fff; transform: scale(1.08); border-color: #e05300 !important; }
  30%  { box-shadow: 0 0 15px #e05300; transform: scale(1.04); border-color: #e05300 !important; }
  50%  { box-shadow: 0 0 40px #e05300, 0 0 15px #fff; transform: scale(1.08); border-color: #e05300 !important; }
  70%  { box-shadow: 0 0 15px #e05300; transform: scale(1.04); border-color: #e05300 !important; }
  85%  { box-shadow: 0 0 35px #e05300, 0 0 10px #fff; transform: scale(1.06); border-color: #e05300 !important; }
  100% { box-shadow: var(--shadow-lg); transform: scale(1.0); }
}

.canvas-element.highlight-flash {
  animation: highlightFlash 2.5s ease-in-out;
  z-index: 1000 !important;
}

@keyframes wireHighlightFlash {
  0%   { stroke-width: 3px;  stroke: inherit; }
  15%  { stroke-width: 14px !important; stroke: #e05300 !important; filter: drop-shadow(0 0 6px #e05300); }
  35%  { stroke-width: 8px  !important; stroke: #e05300 !important; }
  55%  { stroke-width: 14px !important; stroke: #e05300 !important; filter: drop-shadow(0 0 6px #e05300); }
  75%  { stroke-width: 8px  !important; stroke: #e05300 !important; }
  90%  { stroke-width: 12px !important; stroke: #e05300 !important; filter: drop-shadow(0 0 4px #e05300); }
  100% { stroke-width: 3px;  stroke: inherit; }
}

.wire-path.highlight-flash {
  animation: wireHighlightFlash 2.5s ease-in-out;
}

/* ── Stat Card Highlight Mode ─────────────────────────────────────── */

/* Stat card becomes clickable / interactive */
.stat-card {
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
}

.stat-card:hover {
  background-color: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.35);
}

/* Active (clicked) stat card gets a glow ring */
.stat-card.stat-active {
  background-color: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.6) !important;
  box-shadow: 0 0 14px rgba(59, 130, 246, 0.35);
}

/* When the canvas is in stat-filter mode, dim everything by default */
#canvas-content.stat-filter-active .canvas-element {
  opacity: 0.18;
  filter: grayscale(80%);
  transition: opacity 0.25s, filter 0.25s;
}

/* Highlighted (contributing) components stay vivid */
#canvas-content.stat-filter-active .canvas-element.stat-contributor {
  opacity: 1 !important;
  filter: none !important;
  box-shadow: 0 0 18px rgba(59, 130, 246, 0.45), var(--shadow-lg);
}

/* Also dim wires when in filter mode */
#canvas-content.stat-filter-active .wire-path {
  opacity: 0.08;
  transition: opacity 0.25s;
}

/* Highlight wires connected to contributing components */
#canvas-content.stat-filter-active .wire-path.stat-contributor-wire {
  opacity: 0.7;
}

/* ── End Stat Card Highlight Mode ─────────────────────────────────── */

/* Component User Manual Styles */
.manual-layout {
  display: flex;
  height: 65vh;
  border-radius: 6px;
  overflow: hidden;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
}

.manual-nav {
  width: 220px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 8px 0;
}

.manual-nav-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 12px 20px;
  text-align: left;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
  outline: none;
}

.manual-nav-btn:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.02);
}

.manual-nav-btn.active {
  color: var(--color-victron-orange);
  background-color: rgba(249, 115, 22, 0.05);
  border-left-color: var(--color-victron-orange);
  font-weight: 600;
}

.manual-content-pane {
  flex: 1;
  padding: 24px 30px;
  overflow-y: auto;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13.5px;
  line-height: 1.6;
}

.manual-section h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 0;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.manual-section h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 20px;
  margin-bottom: 8px;
}

.manual-section p {
  margin-bottom: 12px;
}

.manual-section ul, .manual-section ol {
  margin-bottom: 16px;
  padding-left: 20px;
}

.manual-section li {
  margin-bottom: 6px;
}

/* Styled alerts for manuals */
.manual-alert {
  padding: 14px 18px;
  border-radius: 8px;
  margin: 16px 0;
  font-size: 13px;
  line-height: 1.5;
}

.manual-alert-danger {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: #f87171;
}

.manual-alert-warning {
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: #fbbf24;
}

.manual-alert-info {
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: #60a5fa;
}

/* Styled tables for manuals */
.manual-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 12px;
}

.manual-table th, .manual-table td {
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  text-align: left;
}

.manual-table th {
  background-color: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-secondary);
}

.manual-table tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.01);
}

/* Dynamic LED indicator animations */
@keyframes manual-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

.led-indicator {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
  border: 1px solid rgba(255,255,255,0.15);
}

.led-indicator.off {
  background-color: #475569 !important;
}


/* ============================================================
   SIMULATION MODE STYLES
   ============================================================ */

/* Body-level simulation mode indicator */
body.sim-mode .canvas-container {
  box-shadow: inset 0 0 0 2px rgba(245, 158, 11, 0.5);
}

body.sim-mode .bottom-dashboard-wrapper {
  display: none;
}


/* Simulation toggle button */
#btn-sim-mode {
  transition: all 0.3s ease;
}
#btn-sim-mode.active {
  background-color: rgba(245, 158, 11, 0.25);
  border-color: rgba(245, 158, 11, 0.6);
  color: #f59e0b;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.15);
}

/* Per-component simulation toggle overlay */
.sim-toggle-overlay {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 15;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  border: 2px solid rgba(0,0,0,0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
  user-select: none;
}
.sim-toggle-overlay:hover {
  transform: scale(1.2);
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
.sim-toggle-overlay.on {
  background-color: #22c55e;
  border-color: #16a34a;
}
.sim-toggle-overlay.off {
  background-color: #ef4444;
  border-color: #dc2626;
}

/* Component dimming when off in simulation */
.canvas-element.sim-off {
  opacity: 0.4;
  filter: saturate(0.3);
}

/* Cable dimming when either endpoint component is unpowered */
.wire-path.sim-off {
  opacity: 0.25;
  stroke: #475569 !important;
  stroke-dasharray: none !important;
  animation: none !important;
  filter: none !important;
}

/* Cable stress colors */
.wire-path.stress-ok {
  filter: none;
}
.wire-path.stress-warning {
  filter: drop-shadow(0 0 3px rgba(245, 158, 11, 0.6));
}
.wire-path.stress-critical {
  filter: drop-shadow(0 0 4px rgba(239, 68, 68, 0.7));
}
.wire-path.no-flow {
  opacity: 0.3;
  stroke-dasharray: 6 4 !important;
}

/* Current flow animation on cables */
@keyframes currentFlowForward {
  from { stroke-dashoffset: 24; }
  to { stroke-dashoffset: 0; }
}
@keyframes currentFlowReverse {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: 24; }
}
.wire-path.flowing {
  stroke-dasharray: 12 12;
  animation: currentFlowForward 0.8s linear infinite;
}

/* Simulation Dashboard Overlay */
.sim-dashboard-overlay {
  display: none;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.97), rgba(30, 41, 59, 0.97));
  border-top: 2px solid rgba(245, 158, 11, 0.4);
  padding: 0;
  flex-direction: column;
  gap: 0;
}
body.sim-mode .sim-dashboard-overlay {
  display: flex;
}

/* Simulation control strip */
.sim-control-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  background: rgba(245, 158, 11, 0.08);
  border-bottom: 1px solid rgba(245, 158, 11, 0.2);
  flex-wrap: wrap;
}
.sim-control-strip .sim-status-text {
  font-size: 13px;
  color: #f59e0b;
  font-weight: 600;
  flex: 1;
  min-width: 200px;
}
.sim-control-strip .btn {
  padding: 4px 10px;
  font-size: 11px;
}
.sim-control-strip .btn-exit-sim {
  background-color: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.4);
  color: #ef4444;
}
.sim-control-strip .btn-exit-sim:hover {
  background-color: rgba(239, 68, 68, 0.3);
}
.sim-control-strip .sim-slider-container {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: 6px;
  padding: 3px 10px;
  margin: 0 4px;
}
.sim-control-strip .sim-slider-label {
  font-size: 11px;
  color: var(--text-primary);
  white-space: nowrap;
}
.sim-control-strip .sim-slider-container input[type="range"] {
  width: 90px;
  height: 4px;
  cursor: pointer;
  accent-color: #f59e0b;
  outline: none;
}

/* Simulation dashboard cards row */
.sim-cards-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 12px 16px;
}
.sim-stat-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px 16px;
  text-align: center;
}
.sim-stat-card .sim-stat-icon {
  font-size: 20px;
  margin-bottom: 4px;
}
.sim-stat-card .sim-stat-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.sim-stat-card .sim-stat-value {
  font-size: 22px;
  font-weight: 700;
  font-family: var(--font-mono);
  line-height: 1.1;
}
.sim-stat-card .sim-stat-value .sim-unit {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-secondary);
}
.sim-stat-card .sim-stat-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Runtime bar */
.sim-runtime-bar-bg {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  margin-top: 8px;
  overflow: hidden;
}
.sim-runtime-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.5s ease, background-color 0.5s ease;
}

/* Simulation Runtime Tooltip */
.sim-runtime-tooltip {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  bottom: 110%;
  right: 0;
  width: 290px;
  background-color: #1e293b;
  color: #f8fafc;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 12px;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -2px rgba(0, 0, 0, 0.6);
  z-index: 1000;
  text-align: left;
  font-size: 11px;
  line-height: 1.5;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  pointer-events: none;
}

.sim-stat-card:hover .sim-runtime-tooltip {
  visibility: visible;
  opacity: 1;
}

.sim-runtime-tooltip-title {
  font-weight: 600;
  color: #f59e0b;
  margin-bottom: 6px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.sim-runtime-tooltip-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 6px 0 8px 0;
}

.sim-runtime-tooltip-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.sim-runtime-tooltip-label {
  color: #94a3b8;
}

.sim-runtime-tooltip-value {
  font-family: var(--font-mono);
  font-weight: 600;
}

.sim-runtime-tooltip-summary {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed rgba(255, 255, 255, 0.15);
  font-weight: 500;
  color: #38bdf8;
}

.sim-info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  font-size: 9px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  margin-left: 4px;
  cursor: help;
  color: var(--text-muted);
  vertical-align: middle;
}

.sim-info-icon:hover {
  background: rgba(255, 255, 255, 0.25);
  color: var(--text-primary);
}

/* Cable sim label */
.cable-sim-label {
  font-size: 9px;
  font-family: var(--font-mono);
  fill: var(--text-muted);
  pointer-events: none;
}

/* Simulation properties panel additions */
.sim-power-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
}
.sim-power-badge.drawing {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.sim-power-badge.off {
  background: rgba(100, 116, 139, 0.15);
  color: #64748b;
  border: 1px solid rgba(100, 116, 139, 0.3);
}
.sim-power-badge.charging {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

/* Distributor / switch panel current draw badge on canvas */
.sim-distributor-badge {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #1e293b;
  border: 1.5px solid #d97706;
  border-radius: 4px;
  color: #fbbf24;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: bold;
  padding: 2px 6px;
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
  box-shadow: 0 1px 3px rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  gap: 3px;
}

.sim-distributor-badge.overloaded {
  background-color: #7f1d1d;
  border-color: #ef4444;
  color: #fca5a5;
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
}


/* ======================================================
   DISCLAIMER MODAL
   ====================================================== */

#disclaimer-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow-y: auto;
}

.disclaimer-box {
  max-width: 760px;
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.disclaimer-header {
  background: linear-gradient(135deg, #0062b1 0%, #003d6f 100%);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
}

.disclaimer-header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.disclaimer-logo-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0.05));
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: white;
  flex-shrink: 0;
  letter-spacing: -0.5px;
}

.disclaimer-header-text h2 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.3px;
}

.disclaimer-header-text p {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  margin-top: 3px;
}

.disclaimer-warning-banner {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.12), rgba(239, 68, 68, 0.06));
  border-bottom: 1px solid rgba(239, 68, 68, 0.2);
  padding: 14px 32px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: #fca5a5;
  font-weight: 500;
}

.disclaimer-warning-banner svg {
  flex-shrink: 0;
  color: #ef4444;
}

.disclaimer-body {
  padding: 28px 32px;
  max-height: 420px;
  overflow-y: auto;
}

.disclaimer-body::-webkit-scrollbar {
  width: 5px;
}
.disclaimer-body::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.02);
}
.disclaimer-body::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
}

.disclaimer-section {
  margin-bottom: 22px;
}

.disclaimer-section h3 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-victron-orange);
  margin-bottom: 8px;
}

.disclaimer-section p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.disclaimer-section ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.disclaimer-section ul li {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-left: 18px;
  position: relative;
}

.disclaimer-section ul li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--color-victron-orange);
  font-weight: 700;
}

.disclaimer-divider {
  height: 1px;
  background: var(--border-color);
  margin: 20px 0;
}

.disclaimer-footer {
  padding: 20px 32px 28px;
  border-top: 1px solid var(--border-color);
  background: rgba(0,0,0,0.15);
}

.disclaimer-accept-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
  padding: 16px;
  background: rgba(0, 98, 177, 0.08);
  border: 1px solid rgba(0, 98, 177, 0.2);
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s;
}

.disclaimer-accept-row:hover {
  background: rgba(0, 98, 177, 0.13);
}

.disclaimer-accept-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-victron-blue);
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 1px;
}

.disclaimer-accept-row label {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.5;
  cursor: pointer;
}

.disclaimer-accept-row label strong {
  color: #f8fafc;
}

#btn-accept-disclaimer {
  width: 100%;
  padding: 14px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 10px;
  background: linear-gradient(135deg, #0062b1, #0077cc);
  border: none;
  color: white;
  cursor: not-allowed;
  opacity: 0.45;
  transition: all 0.25s ease;
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

#btn-accept-disclaimer.enabled {
  opacity: 1;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 98, 177, 0.4);
}

#btn-accept-disclaimer.enabled:hover {
  background: linear-gradient(135deg, #0077cc, #0089e0);
  box-shadow: 0 6px 28px rgba(0, 98, 177, 0.6);
  transform: translateY(-1px);
}

/* ======================================================
   HOME PAGE OVERLAY
   ====================================================== */

#home-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: var(--bg-primary);
  overflow-y: auto;
  display: none;
}

#home-overlay.visible {
  display: block;
}

/* Home Header */
.home-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 25, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.home-header-logo {
  display: flex;
  align-items: center;
  gap: 14px;
}

.home-header-logo .logo-icon {
  width: 38px;
  height: 38px;
  font-size: 14px;
}

.home-header-logo h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.home-header-logo span {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.home-nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.home-nav-link {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.home-nav-link:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
}

.home-nav-cta {
  padding: 9px 20px;
  font-size: 13px;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, #0062b1, #0077cc);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all 0.25s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 2px 12px rgba(0, 98, 177, 0.35);
}

.home-nav-cta:hover {
  background: linear-gradient(135deg, #0077cc, #0089e0);
  box-shadow: 0 4px 20px rgba(0, 98, 177, 0.5);
  transform: translateY(-1px);
}

/* Hero Section */
.home-hero {
  padding: 90px 40px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.home-hero::before {
  content: '';
  position: absolute;
  top: -120px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(ellipse, rgba(0, 98, 177, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.home-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(0, 98, 177, 0.12);
  border: 1px solid rgba(0, 98, 177, 0.25);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: #60a5fa;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.home-hero h1 {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: #f8fafc;
  max-width: 820px;
  margin: 0 auto 22px;
}

.home-hero h1 .accent {
  background: linear-gradient(135deg, #0077cc, #e05300);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.home-hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 42px;
  line-height: 1.6;
}

.home-hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.home-btn-primary {
  padding: 14px 30px;
  font-size: 15px;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, #0062b1, #e05300);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all 0.25s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 4px 24px rgba(0, 98, 177, 0.4);
}

.home-btn-primary:hover {
  box-shadow: 0 6px 32px rgba(0, 98, 177, 0.55);
  transform: translateY(-2px);
}

.home-btn-secondary {
  padding: 14px 30px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all 0.25s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.home-btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-1px);
}

/* Hero Stats */
.home-hero-stats {
  display: flex;
  gap: 0;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 640px;
  margin: 0 auto;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  overflow: hidden;
}

.home-stat {
  flex: 1;
  padding: 20px 24px;
  text-align: center;
  border-right: 1px solid var(--border-color);
}

.home-stat:last-child {
  border-right: none;
}

.home-stat-val {
  font-size: 28px;
  font-weight: 800;
  color: #f8fafc;
  letter-spacing: -1px;
}

.home-stat-val .stat-accent {
  background: linear-gradient(135deg, #0077cc, #e05300);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.home-stat-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-top: 4px;
}

/* Section Styles */
.home-section {
  padding: 72px 40px;
  max-width: 1160px;
  margin: 0 auto;
}

.home-section-full {
  padding: 72px 40px;
  background: rgba(255,255,255,0.02);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.home-section-inner {
  max-width: 1160px;
  margin: 0 auto;
}

.home-section-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-victron-orange);
  margin-bottom: 10px;
}

.home-section-title {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  color: #f8fafc;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
  line-height: 1.15;
}

.home-section-sub {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.6;
  margin-bottom: 48px;
}

/* Benefits Cards */
.home-benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.home-benefit-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 28px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.home-benefit-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-victron-blue), var(--color-victron-orange));
  opacity: 0;
  transition: opacity 0.3s;
}

.home-benefit-card:hover {
  border-color: rgba(0, 98, 177, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.home-benefit-card:hover::before {
  opacity: 1;
}

.home-benefit-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
  background: rgba(0, 98, 177, 0.12);
  border: 1px solid rgba(0, 98, 177, 0.2);
}

.home-benefit-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 10px;
}

.home-benefit-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Features Grid */
.home-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.home-feature-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 22px 20px;
  transition: all 0.25s;
}

.home-feature-card:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.12);
}

.home-feature-icon {
  font-size: 24px;
  margin-bottom: 12px;
  display: block;
}

.home-feature-card h4 {
  font-size: 14px;
  font-weight: 600;
  color: #f8fafc;
  margin-bottom: 7px;
}

.home-feature-card p {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.55;
}

/* How It Works Steps */
.home-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.home-steps::before {
  content: '';
  position: absolute;
  left: 23px; top: 48px; bottom: 48px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-victron-blue), var(--color-victron-orange));
  opacity: 0.3;
}

.home-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 28px 0;
  border-bottom: 1px solid var(--border-color);
}

.home-step:last-child {
  border-bottom: none;
}

.home-step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-victron-blue), rgba(0,98,177,0.4));
  border: 2px solid rgba(0, 98, 177, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.home-step-content h4 {
  font-size: 17px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 8px;
}

.home-step-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.home-step-content .step-tip {
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-victron-orange);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Simulator Callout */
.home-sim-callout {
  padding: 60px 40px;
  background: linear-gradient(135deg, rgba(0, 62, 111, 0.4) 0%, rgba(224, 83, 0, 0.15) 100%);
  border-top: 1px solid rgba(0, 98, 177, 0.25);
  border-bottom: 1px solid rgba(0, 98, 177, 0.25);
  position: relative;
  overflow: hidden;
}

.home-sim-callout::before {
  content: '⚡';
  position: absolute;
  right: -20px; top: 50%;
  transform: translateY(-50%);
  font-size: 280px;
  opacity: 0.03;
  line-height: 1;
  pointer-events: none;
}

.home-sim-callout-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

@media (max-width: 768px) {
  .home-sim-callout-inner { grid-template-columns: 1fr; }
}

.home-sim-left h2 {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
  line-height: 1.15;
}

.home-sim-left p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.home-sim-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}

.home-sim-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.home-sim-feature-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  flex-shrink: 0;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

/* Simulated dashboard mockup */
.home-sim-mockup {
  background: rgba(18, 24, 38, 0.8);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(0,0,0,0.4);
}

.home-sim-mock-bar {
  background: linear-gradient(135deg, rgba(34,197,94,0.15), rgba(34,197,94,0.05));
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  color: #22c55e;
}

.home-sim-mock-pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px rgba(34,197,94,0.6);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.home-sim-mock-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255,255,255,0.04);
}

.home-sim-mock-card {
  background: rgba(18, 24, 38, 0.95);
  padding: 18px 20px;
}

.home-sim-mock-card-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.home-sim-mock-card-val {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.home-sim-mock-card-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.home-sim-mock-bar-row {
  padding: 14px 20px;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.home-sim-mock-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.home-sim-mock-bar-bg {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
}

.home-sim-mock-bar-fill {
  height: 100%;
  border-radius: 3px;
  animation: bar-fill 3s ease-in-out infinite alternate;
}

@keyframes bar-fill {
  from { width: 62%; }
  to { width: 78%; }
}

/* How-To Teasers */
.home-howto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 20px;
}

.home-howto-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 26px;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: all 0.25s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.home-howto-card::after {
  content: '→';
  position: absolute;
  right: 22px;
  bottom: 22px;
  font-size: 16px;
  color: var(--text-muted);
  transition: all 0.25s;
}

.home-howto-card:hover {
  border-color: rgba(0, 98, 177, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.home-howto-card:hover::after {
  color: var(--color-victron-blue);
  right: 18px;
}

.home-howto-num {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-victron-blue);
  margin-bottom: 12px;
}

.home-howto-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 8px;
  padding-right: 28px;
}

.home-howto-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* CTA Strip */
.home-cta-strip {
  padding: 60px 40px;
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 98, 177, 0.08), rgba(224, 83, 0, 0.06));
  border-top: 1px solid var(--border-color);
}

.home-cta-strip h2 {
  font-size: 32px;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.home-cta-strip p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.home-footer {
  padding: 28px 40px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.home-footer p {
  font-size: 12px;
  color: var(--text-muted);
}

.home-footer-disclaimer-link {
  font-size: 12px;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}

.home-footer-disclaimer-link:hover {
  color: var(--text-secondary);
}

/* ======================================================
   HOW-TO PAGE (howto.html)
   ====================================================== */

.howto-body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
}

.howto-page-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.howto-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: calc(100vh - 64px);
}

.howto-sidebar {
  background: rgba(18, 24, 38, 0.6);
  border-right: 1px solid var(--border-color);
  padding: 32px 0;
  position: sticky;
  top: 64px;
  height: calc(100vh - 64px);
  overflow-y: auto;
}

.howto-sidebar-section {
  padding: 0 20px;
  margin-bottom: 28px;
}

.howto-sidebar-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  padding: 0 12px;
  margin-bottom: 8px;
}

.howto-sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  background: none;
  border: none;
  font-family: var(--font-sans);
  width: 100%;
  text-align: left;
  text-decoration: none;
}

.howto-sidebar-link:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
}

.howto-sidebar-link.active {
  background: rgba(0, 98, 177, 0.12);
  color: #60a5fa;
  border: 1px solid rgba(0, 98, 177, 0.2);
}

.howto-content {
  padding: 48px;
  max-width: 820px;
}

.howto-article {
  display: none;
}

.howto-article.active {
  display: block;
}

.howto-article-eyebrow {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-victron-orange);
  margin-bottom: 12px;
}

.howto-article h1 {
  font-size: 32px;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
  line-height: 1.15;
}

.howto-article-lead {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-color);
}

.howto-step-block {
  display: flex;
  gap: 24px;
  margin-bottom: 36px;
}

.howto-step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-victron-blue), rgba(0,98,177,0.4));
  border: 2px solid rgba(0, 98, 177, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
}

.howto-step-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 8px;
}

.howto-step-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.howto-tip-box {
  background: rgba(0, 98, 177, 0.08);
  border: 1px solid rgba(0, 98, 177, 0.2);
  border-left: 3px solid var(--color-victron-blue);
  border-radius: 8px;
  padding: 16px 18px;
  margin: 20px 0;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.howto-tip-box strong {
  color: #60a5fa;
  display: block;
  margin-bottom: 4px;
}

.howto-warning-box {
  background: rgba(239, 68, 68, 0.07);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-left: 3px solid #ef4444;
  border-radius: 8px;
  padding: 16px 18px;
  margin: 20px 0;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.howto-warning-box strong {
  color: #fca5a5;
  display: block;
  margin-bottom: 4px;
}

.howto-next-article {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.howto-next-btn {
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, #0062b1, #0077cc);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-sans);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.howto-next-btn:hover {
  box-shadow: 0 4px 16px rgba(0, 98, 177, 0.4);
  transform: translateY(-1px);
}

/* Header Home button */
.btn-home {
  background: rgba(0, 98, 177, 0.1);
  border-color: rgba(0, 98, 177, 0.3);
  color: #60a5fa;
}

.btn-home:hover {
  background: rgba(0, 98, 177, 0.18);
  border-color: rgba(0, 98, 177, 0.5);
}

.stressed-cable-item {
  transition: all 0.2s ease-in-out;
}

.stressed-cable-item:hover {
  background-color: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 255, 255, 0.2) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}