/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-dark: #1a1a2e;
  --bg-mid: #16213e;
  --bg-panel: #0f3460;
  --bg-panel2: #1a2744;
  --accent: #e94560;
  --accent2: #0fa3b1;
  --text: #e0e0e0;
  --text-dim: #888;
  --border: #2a4070;
  --hover: #1e3a6e;
  --sidebar-w: 240px;
  --right-sidebar-w: 260px;
  --menubar-h: 46px;
  --toolbar-h: 40px;
  --status-h: 28px;
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 13px;
  background: var(--bg-dark);
  color: var(--text);
}

/* ===== MENU BAR ===== */
#menubar {
  height: var(--menubar-h);
  background: var(--bg-mid);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
}

.menu-logo {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent2);
  margin-right: 12px;
  white-space: nowrap;
}

.menu-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.menu-actions button {
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
  transition: background 0.15s;
}
.menu-actions button:hover { background: var(--hover); }
.menu-actions button:active { background: var(--accent); }

.menu-actions label {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-dim);
  font-size: 12px;
}
.menu-actions select {
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 6px;
  font-size: 12px;
}

.separator { width: 1px; height: 20px; background: var(--border); margin: 0 6px; }

/* ===== MAIN LAYOUT ===== */
#main-layout {
  display: flex;
  position: fixed;
  top: var(--menubar-h);
  left: 0; right: 0; bottom: 0;
}

/* ===== SIDEBARS ===== */
#sidebar-left {
  width: var(--sidebar-w);
  min-width: 120px;
  max-width: 520px;
  flex-shrink: 0;
  background: var(--bg-panel2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

#sidebar-right {
  width: var(--right-sidebar-w);
  min-width: 140px;
  max-width: 520px;
  flex-shrink: 0;
  background: var(--bg-panel2);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding-bottom: 12px;
  position: relative;
}

/* Resize handles (injected by JS) */
.sidebar-resize-handle {
  position: absolute;
  top: 0; bottom: 0;
  width: 6px;
  cursor: col-resize;
  z-index: 200;
  background: transparent;
  transition: background 0.15s;
}
.sidebar-resize-handle:hover,
.sidebar-resize-handle.dragging {
  background: var(--accent2);
  opacity: 0.55;
}
#sidebar-left  .sidebar-resize-handle { right: 0; }
#sidebar-right .sidebar-resize-handle { left:  0; }

.sidebar-header {
  background: var(--bg-panel);
  color: var(--accent2);
  font-weight: 700;
  font-size: 12px;
  padding: 6px 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

/* ===== CATEGORY TABS ===== */
#category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  padding: 4px;
  background: var(--bg-mid);
  border-bottom: 1px solid var(--border);
}

.cat-tab {
  flex: 1 1 auto;
  background: var(--bg-panel);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px 4px;
  cursor: pointer;
  font-size: 10px;
  text-align: center;
  transition: all 0.15s;
}
.cat-tab:hover { background: var(--hover); color: var(--text); }
.cat-tab.active { background: var(--accent2); color: #000; border-color: var(--accent2); font-weight: 700; }

/* ===== SEARCH BOX ===== */
.search-box { padding: 6px; }
.search-box input {
  width: 100%;
  background: var(--bg-dark);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 12px;
}
.search-box input:focus { outline: none; border-color: var(--accent2); }

/* ===== ELEMENT GRID ===== */
#element-grid {
  flex: 1;
  overflow-y: auto;
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.element-group-title {
  font-size: 11px;
  color: var(--accent2);
  font-weight: 600;
  padding: 2px 4px;
  background: rgba(15,163,177,0.1);
  border-radius: 3px;
  margin-top: 4px;
}

.element-items-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}

.element-item {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 4px;
  cursor: grab;
  text-align: center;
  transition: all 0.15s;
  user-select: none;
  min-width: 0;          /* allow grid cell to shrink */
  overflow: hidden;
}
.element-item:hover { background: var(--hover); border-color: var(--accent2); transform: scale(1.03); }
.element-item.selected-element { border-color: var(--accent); background: rgba(233,69,96,0.2); }
.element-item:active { cursor: grabbing; }

.element-icon { font-size: 22px; display: block; margin-bottom: 2px; }
.element-name { font-size: 10px; color: var(--text); line-height: 1.2; display: block;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.element-info { font-size: 9px; color: var(--text-dim); margin-top: 1px; display: block;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ===== VIEWPORT ===== */
#viewport-container {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: #000;
}

#three-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}

/* ===== VIEWPORT TOOLBAR ===== */
#viewport-toolbar {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 4px;
  background: rgba(15, 21, 62, 0.85);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 8px;
  backdrop-filter: blur(4px);
}

#viewport-toolbar button {
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.15s;
  white-space: nowrap;
}
#viewport-toolbar button:hover { background: var(--hover); }
#viewport-toolbar button.active { background: var(--accent2); color: #000; }

.tb-sep {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 2px;
  align-self: center;
}

/* ===== TOOLS PANEL (left sidebar bottom) ===== */
#tools-panel {
  border-top: 1px solid var(--border);
  background: var(--bg-mid);
  flex-shrink: 0;
}

.tools-panel-header {
  background: var(--bg-panel);
  color: var(--accent2);
  font-weight: 700;
  font-size: 11px;
  padding: 5px 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

.tools-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 3px;
  padding: 5px;
}

.tools-grid button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 5px 2px;
  cursor: pointer;
  font-size: 17px;
  line-height: 1;
  transition: background 0.15s;
}

.tools-grid button span {
  font-size: 9px;
  color: var(--text-dim);
  line-height: 1;
  white-space: nowrap;
}

.tools-grid button:hover { background: var(--hover); border-color: var(--accent2); }
.tools-grid button:hover span { color: var(--text); }
.tools-grid button.active { background: var(--accent2); color: #000; border-color: var(--accent2); }
.tools-grid button.active span { color: #000; }

/* ===== STATUS BAR ===== */
#status-bar {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: var(--status-h);
  background: rgba(10, 15, 40, 0.9);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 24px;
  font-size: 11px;
  color: var(--text-dim);
}
#status-bar span { white-space: nowrap; }
#status-mode { color: var(--accent2); font-weight: 600; }

/* ===== DIMENSION DISPLAY ===== */
#dimension-display {
  position: absolute;
  top: 56px;
  right: 12px;
  background: rgba(10, 15, 40, 0.8);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.8;
}

/* ===== PROPERTIES PANEL ===== */
#properties-panel {
  padding: 8px;
  flex: 1;
}

.no-selection {
  color: var(--text-dim);
  font-size: 11px;
  line-height: 1.6;
  padding: 8px;
}

.prop-group { margin-bottom: 10px; }
.prop-group-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent2);
  margin-bottom: 4px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--border);
}

.prop-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}
.prop-label {
  flex: 0 0 90px;
  font-size: 11px;
  color: var(--text-dim);
}
.prop-row input[type="number"],
.prop-row input[type="text"],
.prop-row select {
  flex: 1;
  background: var(--bg-dark);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px 6px;
  font-size: 11px;
}
.prop-row input[type="number"]:focus,
.prop-row input[type="text"]:focus,
.prop-row select:focus { outline: none; border-color: var(--accent2); }
.prop-row input[type="color"] {
  flex: 1;
  height: 24px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: none;
  cursor: pointer;
}
.prop-row input[type="range"] { flex: 1; cursor: pointer; }
.prop-row input[type="checkbox"] { cursor: pointer; }

/* ===== LAYOUT SETTINGS ===== */
#layout-settings {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
#layout-settings label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 11px;
  color: var(--text-dim);
}
#layout-settings input,
#layout-settings select {
  background: var(--bg-dark);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px 6px;
  font-size: 12px;
}

/* ===== ELEMENTS LIST ===== */
#elements-list {
  padding: 4px 8px;
  max-height: 250px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.elem-list-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 6px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 11px;
  transition: background 0.1s;
}
.elem-list-item:hover { background: var(--hover); }
.elem-list-item.active { background: rgba(233,69,96,0.2); color: var(--accent); }
.elem-list-icon { font-size: 14px; }
.elem-list-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.elem-list-delete {
  opacity: 0;
  cursor: pointer;
  color: var(--accent);
  font-size: 12px;
  padding: 1px 4px;
}
.elem-list-item:hover .elem-list-delete { opacity: 1; }

/* ===== CONTEXT MENU ===== */
#context-menu {
  position: fixed;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 0;
  z-index: 1000;
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
  min-width: 160px;
}
.ctx-item {
  padding: 7px 14px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text);
  transition: background 0.1s;
}
.ctx-item:hover { background: var(--hover); }
.ctx-sep {
  border-top: 1px solid var(--border);
  margin-top: 3px;
  padding-top: 10px;
}

/* ===== ASSISTANT MODE ===== */
#assistant-btn {
  position: fixed;
  bottom: 40px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent2);
  color: #000;
  font-size: 20px;
  font-weight: 900;
  border: none;
  cursor: pointer;
  z-index: 2900;
  box-shadow: 0 3px 12px rgba(0,0,0,0.55);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s, transform 0.1s;
  line-height: 1;
}
#assistant-btn:hover   { background: #12bfd0; transform: scale(1.08); }
#assistant-btn.active  { background: #e94560; color: #fff; }

#assistant-panel {
  position: fixed;
  bottom: 88px;
  right: 16px;
  width: 310px;
  max-height: 72vh;
  background: rgba(10, 18, 36, 0.97);
  border: 1px solid #2a6080;
  border-radius: 12px;
  box-shadow: 0 6px 32px rgba(0,0,0,0.7);
  z-index: 2900;
  display: none;
  flex-direction: column;
  overflow: hidden;
  font-size: 12.5px;
  color: #c8e8ff;
}
#assistant-panel.open { display: flex; }

#assistant-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px 8px;
  background: #0d2035;
  border-bottom: 1px solid #1a4060;
  flex-shrink: 0;
}
#assistant-header span {
  font-weight: 700; font-size: 13px; color: var(--accent2);
}
#assistant-header button {
  background: none; border: none; color: #5a9ab0;
  font-size: 16px; cursor: pointer; padding: 0 2px; line-height: 1;
}
#assistant-header button:hover { color: #c8e8ff; }

#assistant-context {
  font-size: 10.5px; color: #4a8aa0;
  padding: 4px 14px 0;
  flex-shrink: 0;
}

#assistant-body {
  overflow-y: auto;
  padding: 8px 14px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.asst-section {
  border-left: 2px solid #1a5070;
  padding-left: 9px;
}
.asst-section-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #4a8aa0;
  margin-bottom: 4px;
}
.asst-hint {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 4px 0;
  border-bottom: 1px solid rgba(30,60,80,0.5);
  line-height: 1.45;
}
.asst-hint:last-child { border-bottom: none; }
.asst-key {
  background: #1a3a50;
  border: 1px solid #2a6080;
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 11px;
  font-family: monospace;
  color: #00e5ff;
  white-space: nowrap;
  flex-shrink: 0;
  align-self: center;
}
.asst-desc {
  color: #a0c8e0;
  font-size: 11.5px;
}

/* Enhanced tooltip in assistant mode */
body.assistant-active [title]:hover::after {
  content: attr(title);
  position: fixed;
  background: rgba(12, 22, 44, 0.97);
  color: #a8d8f0;
  border: 1px solid #2a6080;
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 11.5px;
  pointer-events: none;
  z-index: 9999;
  max-width: 260px;
  white-space: pre-wrap;
  box-shadow: 0 3px 10px rgba(0,0,0,0.5);
}

/* ===== HOVER TOOLTIP ===== */
#app-tooltip {
  position: fixed;
  display: none;
  background: rgba(12, 18, 38, 0.96);
  color: #d0e8ff;
  border: 1px solid #4488aa;
  border-radius: 6px;
  padding: 5px 11px;
  font-size: 11.5px;
  line-height: 1.55;
  pointer-events: none;
  z-index: 9999;
  white-space: pre;
  box-shadow: 0 3px 12px rgba(0,0,0,0.55);
  max-width: 320px;
  white-space: pre-wrap;
}

/* ===== MODAL ===== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-content {
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  min-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.modal-content h2 { color: var(--accent2); font-size: 16px; }
.modal-content label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--text-dim);
}
.modal-content input,
.modal-content select {
  background: var(--bg-dark);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 5px 8px;
  font-size: 13px;
}
.modal-buttons {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 8px;
}
.modal-buttons button {
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 7px 18px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.15s;
}
.modal-buttons button:first-child { background: var(--accent2); color: #000; }
.modal-buttons button:hover { opacity: 0.85; }

/* Connection picker options */
.connect-option-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
  cursor: pointer;
  color: var(--text);
  font-size: 13px;
  text-align: left;
  transition: background 0.12s, border-color 0.12s;
}
.connect-option-btn:hover { background: var(--bg-panel); border-color: var(--accent2); }
.connect-option-btn.co-active { background: #0d2a3a; border-color: #00ccff; box-shadow: 0 0 6px rgba(0,204,255,0.3); }
.connect-option-btn.co-active .co-num { background: #00ccff; }
.connect-option-btn .co-num {
  background: var(--accent2);
  color: #000;
  border-radius: 50%;
  width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  font-weight: bold; font-size: 12px; flex-shrink: 0;
}
.connect-option-btn .co-desc { flex: 1; }
.connect-option-btn .co-len { color: var(--text-dim); font-size: 11px; flex-shrink: 0; }

/* ===== SCROLLBARS ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent2); }

/* ===== GRID OVERLAY (2D top view hint) ===== */
.grid-info-badge {
  position: absolute;
  bottom: 36px;
  left: 12px;
  background: rgba(10,15,40,0.8);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 4px 10px;
  font-size: 11px;
  color: var(--text-dim);
}

/* ════════════════════════════════════════════════════════════════
   SCHIENENNETZ-GENERATOR
   ════════════════════════════════════════════════════════════════ */

/* Generator button in menubar */
.btn-generator {
  background: linear-gradient(135deg, #0e7a8a, #0fa3b1) !important;
  color: #fff !important;
  font-weight: 700 !important;
  border: 1px solid #0fa3b1 !important;
  box-shadow: 0 0 8px rgba(15,163,177,0.4);
}
.btn-generator:hover { background: linear-gradient(135deg, #0fa3b1, #14c5d8) !important; }

/* Modal overlay */
.gen-modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex; align-items: center; justify-content: center;
  z-index: 2000;
  padding: 16px;
}

/* Modal box */
.gen-modal-box {
  background: var(--bg-mid);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: min(1400px, 96vw);
  height: min(92vh, 900px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.7);
}

/* Header */
.gen-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-shrink: 0;
}
.gen-logo {
  font-size: 17px; font-weight: 800; color: var(--accent2);
  letter-spacing: 0.3px;
}
.gen-subtitle {
  font-size: 11px; color: var(--text-dim); margin-left: 12px;
}
.gen-close-btn {
  background: none; border: 1px solid var(--border);
  color: var(--text-dim); cursor: pointer;
  width: 28px; height: 28px; border-radius: 50%;
  font-size: 14px; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.gen-close-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Body layout */
.gen-body {
  display: flex; flex: 1; overflow: hidden;
}

/* Settings sidebar */
.gen-settings {
  width: 230px; min-width: 200px; flex-shrink: 0;
  background: var(--bg-panel2);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 14px 12px;
  display: flex; flex-direction: column; gap: 6px;
}

.gen-section {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 10px 10px 12px;
  display: flex; flex-direction: column; gap: 8px;
}
.gen-section-title {
  font-size: 11px; font-weight: 700;
  color: var(--accent2);
  text-transform: uppercase; letter-spacing: 0.6px;
  margin-bottom: 2px;
}

.gen-row {
  display: flex; flex-direction: column; gap: 3px;
}
.gen-row label { font-size: 11px; color: var(--text-dim); }
.gen-input-wrap {
  display: flex; align-items: center; gap: 4px;
}
.gen-input-wrap input[type=number] {
  flex: 1; min-width: 0;
  background: var(--bg-dark); border: 1px solid var(--border);
  color: var(--text); padding: 5px 8px;
  border-radius: 5px; font-size: 13px;
}
.gen-input-wrap input[type=number]:focus { outline: none; border-color: var(--accent2); }
.gen-unit { font-size: 11px; color: var(--text-dim); white-space: nowrap; }

.gen-or {
  text-align: center; font-size: 11px; color: var(--text-dim);
  padding: 2px 0;
}

/* Floor buttons */
.gen-floor-btns {
  display: flex; gap: 4px;
}
.gen-floor-btn {
  flex: 1;
  background: var(--bg-dark); border: 1px solid var(--border);
  color: var(--text-dim); cursor: pointer;
  height: 34px; border-radius: 6px;
  font-size: 14px; font-weight: 700;
  transition: all 0.15s;
}
.gen-floor-btn:hover { border-color: var(--accent2); color: var(--accent2); }
.gen-floor-btn.active {
  background: var(--accent2); border-color: var(--accent2);
  color: #fff; box-shadow: 0 0 8px rgba(15,163,177,0.5);
}
.gen-help-text { font-size: 10px; color: var(--text-dim); line-height: 1.4; }

/* Scale select */
.gen-select {
  width: 100%;
  background: var(--bg-dark); border: 1px solid var(--border);
  color: var(--text); padding: 6px 8px;
  border-radius: 5px; font-size: 13px;
}
.gen-select:focus { outline: none; border-color: var(--accent2); }

/* Generate button */
.gen-btn-go {
  margin-top: 4px;
  background: linear-gradient(135deg, var(--accent), #c0203a);
  border: none; color: #fff; cursor: pointer;
  padding: 10px; border-radius: 7px;
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.3px;
  transition: opacity 0.15s;
}
.gen-btn-go:hover { opacity: 0.88; }

.gen-summary {
  font-size: 11px; color: #6a9a6a;
  text-align: center; min-height: 18px;
}

/* Results panel */
.gen-results {
  flex: 1; overflow-y: auto;
  padding: 14px;
  display: flex; flex-direction: column; gap: 10px;
}

/* Placeholder */
.gen-placeholder {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 12px; color: var(--text-dim);
  text-align: center; padding: 40px;
}
.gen-placeholder-icon { font-size: 48px; }
.gen-hint { font-size: 11px; color: #5a7a5a; margin-top: 4px; }

/* Result header */
.gen-result-header {
  font-size: 12px; color: var(--text-dim);
  padding: 6px 10px;
  background: rgba(255,255,255,0.04);
  border-radius: 5px; border: 1px solid var(--border);
  flex-shrink: 0;
}

/* No result */
.gen-noresult {
  display: flex; flex-direction: column; align-items: center;
  gap: 12px; padding: 40px; text-align: center; color: var(--text-dim);
}
.gen-noresult div { font-size: 40px; }

/* Floor tabs */
.gen-floor-tabs {
  display: flex; gap: 4px; flex-shrink: 0;
}
.gen-ftab {
  background: var(--bg-panel2); border: 1px solid var(--border);
  color: var(--text-dim); cursor: pointer;
  padding: 6px 14px; border-radius: 6px 6px 0 0;
  font-size: 12px; font-weight: 600;
  transition: all 0.15s;
}
.gen-ftab:hover { color: var(--accent2); border-color: var(--accent2); }
.gen-ftab.active {
  background: var(--bg-mid); border-bottom-color: var(--bg-mid);
  color: var(--accent2);
}

.gen-floors-wrap { flex: 1; overflow: hidden; display: flex; flex-direction: column; }
.gen-floor-panel { display: none; flex: 1; overflow-y: auto; flex-direction: column; gap: 10px; }
.gen-floor-panel.active { display: flex; }

/* Helix note */
.gen-helix-note {
  background: rgba(15,163,177,0.1);
  border: 1px solid rgba(15,163,177,0.4);
  color: var(--accent2);
  border-radius: 7px; padding: 8px 12px;
  font-size: 12px; flex-shrink: 0;
}

/* Group sections */
.gen-group { display: flex; flex-direction: column; gap: 8px; }
.gen-group-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.8px; padding: 4px 8px;
  border-left: 3px solid; border-radius: 0 4px 4px 0;
}
.gen-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 10px;
}

/* Layout card */
.gen-card {
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 12px;
  display: flex; flex-direction: column; gap: 6px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.gen-card:hover {
  border-color: var(--accent2);
  box-shadow: 0 0 12px rgba(15,163,177,0.2);
}

.gen-card-head {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.gen-card-icon { font-size: 16px; }
.gen-card-name { font-weight: 700; font-size: 13px; color: var(--text); flex: 1; }

/* Badges */
.gen-badge {
  font-size: 10px; font-weight: 700; padding: 2px 6px;
  border-radius: 10px; white-space: nowrap;
}
.gen-badge-switch { background: rgba(120,90,20,0.5); color: #E8A020; border: 1px solid #8a6010; }
.gen-badge-ml     { background: rgba(10,100,120,0.4); color: #0fa3b1; border: 1px solid #0fa3b1; }

.gen-card-dims {
  font-size: 11px; color: var(--accent2); font-family: monospace;
}
.gen-card-desc {
  font-size: 11px; color: var(--text-dim); line-height: 1.4;
}

/* Canvas preview */
.gen-card-canvas {
  display: flex; gap: 6px; flex-wrap: wrap;
}
.gen-canvas {
  border-radius: 6px;
  border: 1px solid var(--border);
  display: block;
  max-width: 100%;
}

/* Track details */
.gen-track-details {
  font-size: 11px; color: var(--text-dim);
  border-top: 1px solid var(--border);
  padding-top: 6px;
  margin-top: 2px;
}
.gen-track-details summary {
  cursor: pointer; color: var(--text-dim); outline: none;
  user-select: none; padding: 2px 0;
}
.gen-track-details summary:hover { color: var(--text); }
.gen-track-list {
  list-style: none; padding: 6px 0 0 8px;
  display: flex; flex-direction: column; gap: 2px;
}
.gen-track-list li::before { content: '• '; color: var(--accent2); }

/* Apply-button in generator card */
.gen-apply-btn {
  margin-top: 4px;
  width: 100%;
  background: linear-gradient(135deg, #1a6a1a, #2a9a2a);
  border: 1px solid #2a8a2a;
  color: #fff;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
  transition: opacity 0.15s, box-shadow 0.15s;
}
.gen-apply-btn:hover {
  opacity: 0.88;
  box-shadow: 0 0 10px rgba(42,154,42,0.5);
}

/* ── Electrical control panel ─────────────────────────────── */
.ek-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  background: #1a2530;
  border-radius: 5px;
  border: 1px solid #2a3a4a;
  font-size: 12px;
}
.ek-row:hover { border-color: #3a5a7a; }
.ek-icon  { font-size: 15px; min-width: 20px; text-align: center; }
.ek-name  { flex: 1; color: #ccc; }
.ek-state { min-width: 90px; color: #aaa; font-size: 11px; }
.ek-btn {
  background: #1a3a6a;
  color: #aaddff;
  border: 1px solid #2a5a9a;
  border-radius: 4px;
  padding: 3px 10px;
  cursor: pointer;
  font-size: 11px;
  white-space: nowrap;
}
.ek-btn:hover { background: #2255aa; }