@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Syne:wght@400;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg: #e8e8e4;
  --canvas-bg: #f0efe8;
  --panel: #d4d3cc;
  --panel2: #c8c7c0;
  --border: #a0a098;
  --border2: #88887e;
  --accent: #0055bb;
  --accent-light: #cce0f5;
  --accent2: #006600;
  --accent3: #cc2200;
  --text: #1a1a14;
  --text2: #66665a;
  --text3: #8a8a7e;
  --block-bg: #fffff2;
  --block-border: #444440;
  --block-shadow: rgba(0,0,0,0.12);
  --wire: #111;
  --wire-sel: #0055bb;
  --grid: #d8d7d0;
  --grid-major: #c0bfb8;
  --scope-bg: #0e0e0e;
  --topbar: #3a3a30;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--canvas-bg);
  color: var(--text);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  user-select: none;
}

/* ── HEADER ─────────────────────────────────────────────────────── */
#header {
  background: var(--topbar);
  padding: 0 16px;
  display: flex;
  align-items: center;
  height: 44px;
  gap: 12px;
  z-index: 100;
  flex-shrink: 0;
}
#header h1 { font-size: 15px; font-weight: 700; color: #fff; letter-spacing: -0.3px; }
#header .sep { width: 1px; height: 24px; background: rgba(255,255,255,0.15); }
.toolbar { display: flex; gap: 3px; align-items: center; }
.toolbar.right { margin-left: auto; }
.tb-btn {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.82);
  padding: 5px 12px;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 5px;
  line-height: 1;
}
.tb-btn:hover { background: rgba(255,255,255,0.15); color: #fff; transform: translateY(-1px); }
.tb-btn:active { transform: translateY(0); }
.tb-btn .tb-icon { font-size: 13px; opacity: 0.85; }
.tb-btn.run {
  background: linear-gradient(135deg, #16a34a, #15803d);
  border-color: #16a34a; color: #fff; font-weight: 600;
  padding: 6px 16px; font-size: 12px;
}
.tb-btn.run:hover { background: linear-gradient(135deg, #22c55e, #16a34a); box-shadow: 0 2px 12px rgba(22,163,74,0.35); }
.tb-btn.run.running {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  border-color: #dc2626;
  animation: pulse-run 1.2s ease-in-out infinite;
}
@keyframes pulse-run {
  0%, 100% { box-shadow: 0 0 4px rgba(220,38,38,0.4); }
  50% { box-shadow: 0 0 18px rgba(239,68,68,0.6); }
}
.tb-btn.danger { border-color: rgba(220,38,38,0.4); color: #fca5a5; }

/* Demo dropdown */
.demo-dropdown { position: relative; display: inline-block; }
.demo-menu {
  display: none; position: absolute; top: 100%; right: 0; z-index: 200;
  background: var(--block-bg, #faf9f4); border: 1px solid rgba(0,0,0,0.15);
  border-radius: 8px; box-shadow: 0 6px 24px rgba(0,0,0,0.18);
  min-width: 320px; padding: 6px 0; margin-top: 4px;
}
.demo-menu.visible { display: block; }
.demo-item {
  padding: 10px 14px; cursor: pointer; border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: background 0.15s;
}
.demo-item:last-child { border-bottom: none; }
.demo-item:hover { background: rgba(0,0,0,0.05); }
.demo-item-title {
  font-weight: 600; font-size: 13px; color: var(--text, #2a2a1e); margin-bottom: 3px;
}
.demo-item-desc {
  font-size: 11px; color: var(--text2, #66665a); line-height: 1.4;
}
.tb-btn.danger:hover { background: rgba(220,38,38,0.25); color: #fff; }
.sim-cfg { display: flex; align-items: center; gap: 6px; }
.sim-cfg label { font-size: 10px; color: rgba(255,255,255,0.5); text-transform: uppercase; letter-spacing: 0.5px; }
.sim-cfg input {
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  padding: 4px 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  width: 50px;
  border-radius: 3px;
  outline: none;
}
.sim-cfg input:focus { border-color: var(--accent); }
.sim-cfg select {
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  padding: 3px 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}
.sim-cfg select:focus { border-color: var(--accent); }
.sim-cfg select option, .sim-cfg select optgroup { background: #333; color: #fff; }

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

/* ── SIDEBAR ────────────────────────────────────────────────────── */
#sidebar {
  width: 190px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  flex-shrink: 0;
}
.lib-title {
  padding: 10px 12px 6px;
  font-size: 10px; font-weight: 700; color: var(--text2);
  letter-spacing: 1px; text-transform: uppercase;
}
.lib-section { border-bottom: 1px solid var(--border); }
.lib-header {
  padding: 8px 12px;
  font-size: 10px; font-weight: 600; color: var(--text2);
  cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  transition: background 0.15s, color 0.15s;
  letter-spacing: 0.5px; text-transform: uppercase;
  gap: 6px;
}
.lib-header::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0;
  background: var(--text3);
}
.lib-header:hover { background: var(--panel2); color: var(--text); }
.lib-header .arrow { transition: transform 0.2s ease; font-size: 8px; }
.lib-header.collapsed .arrow { transform: rotate(-90deg); }
/* Category dot colors */
.lib-section:nth-child(2) .lib-header::before { background: #e67e22; }   /* Sources */
.lib-section:nth-child(3) .lib-header::before { background: #3498db; }   /* Continuous */
.lib-section:nth-child(4) .lib-header::before { background: #e74c3c; }   /* Math */
.lib-section:nth-child(5) .lib-header::before { background: #1abc9c; }   /* Discrete */
.lib-section:nth-child(6) .lib-header::before { background: #f39c12; }   /* Nonlinear */
.lib-section:nth-child(7) .lib-header::before { background: #e91e63; }   /* Logic */
.lib-section:nth-child(8) .lib-header::before { background: #7c6ecf; }   /* Signal Routing */
.lib-section:nth-child(9) .lib-header::before { background: #607d8b; }   /* Sinks */
.lib-body {
  padding: 4px 6px 6px;
  overflow: hidden;
  max-height: 600px;
  transition: max-height 0.25s ease, padding 0.25s ease, opacity 0.2s ease;
  opacity: 1;
}
.lib-body.hidden {
  max-height: 0; padding: 0 6px; opacity: 0;
}
.block-item {
  padding: 5px 8px; margin-bottom: 2px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  font-size: 11px; font-weight: 500;
  cursor: grab;
  transition: all 0.15s ease;
  color: var(--text);
  display: flex; align-items: center; gap: 6px;
}
.block-item:hover {
  border-color: var(--accent); color: var(--accent);
  box-shadow: 0 1px 4px var(--block-shadow);
  padding-left: 11px;
}
.block-item:active { cursor: grabbing; transform: scale(0.97); }
.block-item .icon {
  width: 22px; height: 18px; display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0; opacity: 0.72;
}
.block-item .icon svg { width: 18px; height: 18px; }

/* ── CANVAS AREA (breadcrumb + canvas) ──────────────────────────── */
#canvas-area {
  flex: 1; display: flex; flex-direction: column; overflow: hidden;
}

/* ── CANVAS ─────────────────────────────────────────────────────── */
#canvas-container {
  flex: 1; position: relative; overflow: hidden;
  background: var(--canvas-bg); cursor: default;
}
#canvas-container.connecting { cursor: crosshair; }
#canvas-container.panning { cursor: grab; }
#canvas-container.panning:active { cursor: grabbing; }
#canvas-container.marquee { cursor: crosshair; }
#canvas {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  transform-origin: 0 0;
}
.canvas-grid {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none;
  background-image:
    radial-gradient(circle, var(--grid-major) 0.7px, transparent 0.7px);
  background-size: 20px 20px;
}

/* ── SVG WIRES ──────────────────────────────────────────────────── */
#wire-svg {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none; overflow: visible; z-index: 15;
}
.wire-path {
  fill: none; stroke: var(--wire);
  stroke-width: 1.5; stroke-linejoin: miter; stroke-linecap: square;
  pointer-events: none;
}
.wire-path.wire-hover { stroke: #2563eb; stroke-width: 2.5; }
.wire-path.selected { stroke: var(--wire-sel); stroke-width: 2; }
.wire-dot {
  pointer-events: none;
}
.wire-hop { fill: none; stroke: var(--wire); stroke-width: 1.2; pointer-events: none; }
.wire-temp {
  fill: none; stroke: var(--accent);
  stroke-width: 1.5; stroke-dasharray: 6 4; pointer-events: none;
}
#marquee-rect {
  fill: rgba(37,99,235,0.08); stroke: var(--accent);
  stroke-width: 1; stroke-dasharray: 4 3;
  pointer-events: none; display: none;
}

/* ── BLOCKS ─────────────────────────────────────────────────────── */
.sim-block {
  position: absolute;
  background: var(--block-bg);
  border: 1.5px solid var(--block-border);
  border-radius: 6px;
  cursor: move; user-select: none;
  min-width: 50px;
  box-shadow: 0 2px 6px var(--block-shadow), 0 0 0 0 transparent;
  z-index: 16;
  transform-origin: center center;
  transition: box-shadow 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.sim-block:hover {
  border-color: var(--accent); z-index: 20;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.block-resize-grip {
  position: absolute; bottom: 0; right: 0;
  width: 14px; height: 14px;
  cursor: nwse-resize; z-index: 35;
  background: linear-gradient(135deg, transparent 50%, var(--border2) 50%, var(--border2) 60%, transparent 60%,
    transparent 70%, var(--border2) 70%, var(--border2) 80%, transparent 80%);
  border-radius: 0 0 5px 0;
  opacity: 0; transition: opacity 0.15s;
}
.sim-block:hover .block-resize-grip,
.sim-block.selected .block-resize-grip { opacity: 0.7; }
.block-resize-grip:hover { opacity: 1 !important; }
.sim-block.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light), 0 3px 12px rgba(37,99,235,0.18);
  z-index: 20;
}
.sim-block.scope-block { min-width: 200px; }

/* Category color stripe on left border */
.sim-block[data-cat="Source"] { border-left: 3px solid #e67e22 !important; }
.sim-block[data-cat="Continuous"] { border-left: 3px solid #3498db !important; }
.sim-block[data-cat="Math"] { border-left: 3px solid #e74c3c !important; }
.sim-block[data-cat="Trig"] { border-left: 3px solid #e74c3c !important; }
.sim-block[data-cat="Discrete"] { border-left: 3px solid #1abc9c !important; }
.sim-block[data-cat="Lookup"] { border-left: 3px solid #e74c3c !important; }
.sim-block[data-cat="Nonlinear"] { border-left: 3px solid #f39c12 !important; }
.sim-block[data-cat="Logic"] { border-left: 3px solid #e91e63 !important; }
.sim-block[data-cat="Sink"] { border-left: 3px solid #607d8b !important; }
.sim-block[data-cat="Subsystem"] { border-left: 3px solid #7c6ecf !important; }
.sim-block[data-cat="Routing"] { border-left: 3px solid #7c6ecf !important; }

.block-header { display: none; }
.block-body {
  padding: 8px 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600; color: var(--text);
  height: 100%; min-height: 38px; text-align: center;
  overflow: hidden; box-sizing: border-box;
}
.sim-block[data-type="goto_blk"] .block-body,
.sim-block[data-type="from_blk"] .block-body {
  padding: 4px 8px; min-height: 28px;
}
.sim-block { overflow: visible; }
.sim-block::after {
  content: attr(data-label);
  position: absolute;
  top: 100%;
  left: 50%;
  margin-top: 4px;
  transform: translateX(-50%) rotate(var(--crot, 0deg));
  font-size: 9px; font-weight: 600;
  color: var(--text);
  letter-spacing: 0.5px; text-transform: uppercase;
  white-space: nowrap;
  pointer-events: none;
  background: rgba(240,239,232,0.88);
  padding: 1px 5px;
  border-radius: 3px;
  opacity: 0;
}
.sim-block.selected::after { opacity: 1; }
.sim-block[data-cat="Subsystem"]::after { opacity: 1; }
.sim-block.mirrored::after {
  transform: translateX(-50%) rotate(var(--crot, 0deg)) scaleX(-1);
}
.block-body .formula {
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500; line-height: 1.3;
}
.block-body .tf-frac {
  display: flex; flex-direction: column; align-items: center; gap: 0;
}
.tf-num, .tf-den { padding: 1px 4px; white-space: nowrap; }
.tf-line { display: block; width: 100%; height: 1px; background: #475569; }

/* When a block is mirrored, SVG icons flip with the container but embedded
   text (gain values, 1/s, PID, tags, constant numbers, formulas…) should
   stay readable. Counter-flip just the text nodes. */
.sim-block.mirrored .block-body svg text,
.sim-block.mirrored .block-body svg tspan {
  transform: scaleX(-1);
  transform-box: fill-box;
  transform-origin: center;
}
.sim-block.mirrored .block-body > span,
.sim-block.mirrored .block-body .formula,
.sim-block.mirrored .block-body .tf-frac {
  display: inline-block;
  transform: scaleX(-1);
}

/* ── PORTS ──────────────────────────────────────────────────────── */
.port {
  position: absolute; width: 6px; height: 6px;
  border-radius: 50%;
  border: 1.5px solid var(--block-border);
  background: var(--block-bg); cursor: crosshair; z-index: 30;
  transition: all 0.15s ease;
  box-shadow: 0 0 0 1.5px rgba(255,255,255,0.7);
}
.port:hover {
  background: var(--accent); border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light), 0 0 6px rgba(0,85,187,0.3);
}
.port.port-in { left: -4px; }
.port.port-out { right: -4px; }
.port.port-connected { background: var(--block-border); }
.port-label {
  position: absolute;
  font-size: 8px; font-weight: 500; color: var(--text3);
  pointer-events: none; white-space: nowrap;
}
.port-label.in { left: 8px; }
.port-label.out { right: 8px; }

/* ── SCOPE ──────────────────────────────────────────────────────── */
.scope-canvas {
  width: 100%;
  height: 100px;
  background: var(--scope-bg);
  border-radius: 0 0 3px 3px;
  display: block; cursor: pointer;
  flex: 1;
}
.sim-block.scope-block.expanded { min-width: 320px; }
.sim-block.scope-block.expanded .scope-canvas { height: 200px; }
.scope-toggle {
  margin-left: auto; cursor: pointer; font-size: 12px;
  color: var(--text2); padding: 2px 4px;
  border-radius: 3px;
  transition: all 0.12s;
  line-height: 1;
}
.scope-toggle:hover { color: var(--accent); background: var(--accent-light); }

/* ── PROPERTIES PANEL ───────────────────────────────────────────── */
#props-panel {
  width: 220px; background: var(--panel);
  border-left: 1px solid var(--border);
  overflow-y: auto; flex-shrink: 0;
  transition: width 0.15s;
}
#props-panel.hidden { width: 0; overflow: hidden; padding: 0; }
.props-header {
  padding: 10px 12px;
  font-size: 10px; font-weight: 700; color: var(--accent);
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.5px; text-transform: uppercase;
  display: flex; justify-content: space-between; align-items: center;
}
.props-close { cursor: pointer; font-size: 14px; color: var(--text2); }
.props-close:hover { color: var(--accent3); }
.props-body { padding: 10px 12px; }
.prop-row { margin-bottom: 10px; }
.prop-label {
  font-size: 10px; font-weight: 600; color: var(--text2);
  margin-bottom: 3px; display: block;
  text-transform: uppercase; letter-spacing: 0.3px;
}
.prop-input {
  width: 100%; background: var(--block-bg);
  border: 1px solid var(--border); color: var(--text);
  padding: 5px 8px;
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  border-radius: 4px; outline: none;
  transition: border-color 0.12s;
}
.prop-input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-light); }
select.prop-input { cursor: pointer; appearance: auto; padding: 6px 8px; }
.prop-apply {
  width: 100%; background: var(--accent); color: #fff;
  border: none; padding: 6px;
  font-family: 'Inter', sans-serif; font-size: 11px; font-weight: 600;
  cursor: pointer; border-radius: 4px; margin-top: 4px;
  transition: background 0.12s;
}
.prop-apply:hover { background: #1d4ed8; }

/* ── STATUS BAR ─────────────────────────────────────────────────── */
#statusbar {
  background: var(--panel);
  border-top: 2px solid var(--border);
  padding: 6px 16px;
  font-size: 12px; color: var(--text);
  display: flex; gap: 20px; align-items: center;
  flex-shrink: 0;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: -0.2px;
}
#statusbar .val { color: #045890; font-weight: 800; }
#st-msg { font-weight: 600; color: var(--text); transition: color 0.2s; }
#st-msg.error { color: #e74c3c; }
#sim-progress {
  height: 100%;
  background: linear-gradient(90deg, rgba(59,130,246,0.18), rgba(34,197,94,0.18));
  border-right: 3px solid #22c55e;
  box-shadow: inset 0 0 12px rgba(59,130,246,0.15), 2px 0 12px rgba(34,197,94,0.6);
  transition: width 0.15s ease-out;
  position: absolute; top: 0; left: 0;
  pointer-events: none;
}

/* ── BLOCK HELP MODAL ───────────────────────────────────────────── */
#block-help-modal {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 3000;
  align-items: center; justify-content: center;
}
#block-help-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 420px; max-width: 92vw;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  overflow: hidden;
}
#block-help-title {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px;
  background: var(--toolbar);
  border-bottom: 1px solid var(--border);
  font-weight: 700; font-size: 14px; color: #60c0ff;
  font-family: 'Inter', sans-serif;
}
#block-help-desc {
  padding: 14px 16px;
  font-size: 13px; line-height: 1.6; color: var(--text);
  font-family: 'Inter', sans-serif;
  border-bottom: 1px solid var(--border);
}
#block-help-params-title {
  padding: 8px 16px 4px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.5px;
  text-transform: uppercase; color: var(--text2);
  font-family: 'Inter', sans-serif;
}
#block-help-table {
  width: 100%; border-collapse: collapse;
  margin-bottom: 8px;
}
#block-help-table td { padding: 5px 16px; font-size: 12px; vertical-align: top; }
.bh-param {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700; color: #f59e0b; white-space: nowrap;
  width: 1%; padding-right: 12px;
}
.bh-paramdesc { color: var(--text); line-height: 1.5; }
#block-help-table tr:nth-child(even) td { background: rgba(255,255,255,0.03); }

/* ── CONTEXT MENU ───────────────────────────────────────────────── */
#ctx-menu {
  position: fixed; background: var(--block-bg);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 4px 0; z-index: 9999;
  display: none; min-width: 160px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
.ctx-item {
  padding: 6px 14px;
  font-size: 11px; font-weight: 500;
  cursor: pointer;
  display: flex; align-items: center; gap: 8px;
  transition: background 0.08s;
}
.ctx-item:hover { background: var(--accent-light); color: var(--accent); }
.ctx-sep { height: 1px; background: var(--border); margin: 3px 0; }
.ctx-shortcut { margin-left: auto; font-size: 10px; color: var(--text3); }

/* ── BLOCK PROPERTIES POPUP ────────────────────────────────────── */
#block-popup {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4); z-index: 10000;
  display: none; align-items: center; justify-content: center;
}
#block-popup.visible { display: flex; }
#block-popup-inner {
  background: var(--bg); border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  width: 380px; max-width: 90vw;
  max-height: 80vh; display: flex; flex-direction: column;
}
#block-popup-header {
  padding: 14px 18px;
  font-size: 14px; font-weight: 600;
  border-bottom: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  flex-shrink: 0;
}
#block-popup-close { cursor: pointer; font-size: 18px; color: var(--text2); }
#block-popup-close:hover { color: var(--accent3); }
#block-popup-body {
  padding: 16px 18px;
  overflow-y: auto; flex: 1;
}
#block-popup-body .prop-row { margin-bottom: 12px; }
#block-popup-body .prop-label { font-size: 11px; margin-bottom: 4px; }
#block-popup-body .prop-input { font-size: 12px; padding: 7px 10px; }
#block-popup-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end; gap: 8px;
  flex-shrink: 0;
}
.popup-btn {
  padding: 7px 22px; border-radius: 8px;
  font-family: 'Inter', sans-serif; font-size: 12px; font-weight: 600;
  cursor: pointer; border: 1px solid var(--border);
  transition: all 0.15s ease;
}
.popup-btn.cancel { background: var(--block-bg); color: var(--text2); }
.popup-btn.cancel:hover { background: var(--panel); }
.popup-btn.apply { background: linear-gradient(135deg, var(--accent), #1d4ed8); color: #fff; border-color: var(--accent); }
.popup-btn.apply:hover { box-shadow: 0 2px 8px rgba(0,85,187,0.3); }

/* ── SCOPE POPUP ────────────────────────────────────────────────── */
#scope-popup {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6); z-index: 10000;
  display: none; align-items: center; justify-content: center;
}
#scope-popup.visible { display: flex; }
#scope-popup-inner {
  background: #1a1a2e; border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  width: 800px; max-width: 92vw; height: 520px; max-height: 85vh;
  overflow: hidden; display: flex; flex-direction: column;
}
#scope-popup-header {
  padding: 8px 14px;
  font-size: 13px; font-weight: 600; color: #ccc;
  background: #12122a;
  border-bottom: 1px solid #333;
  display: flex; justify-content: space-between; align-items: center;
}
#scope-popup-close { cursor: pointer; font-size: 18px; color: #888; }
#scope-popup-close:hover { color: #f44; }
#scope-popup-toolbar {
  display: flex; align-items: center; gap: 4px;
  padding: 4px 10px; background: #222244;
  border-bottom: 1px solid #333;
}
#scope-popup-toolbar button {
  background: #2a2a50; color: #ccc; border: 1px solid #444;
  border-radius: 3px; padding: 3px 8px; font-size: 12px;
  cursor: pointer; font-family: inherit;
}
#scope-popup-toolbar button:hover { background: #3a3a60; color: #fff; }
#scope-popup-toolbar button.active { background: #2255aa; color: #fff; border-color: #4488ee; }
.sp-sep { width: 1px; height: 18px; background: #444; margin: 0 3px; }
#scope-popup-canvas { display: block; cursor: crosshair; }
#scope-popup-names {
  display: none; flex-wrap: wrap; align-items: center; gap: 4px 14px;
  padding: 5px 12px; background: #14142a; border-bottom: 1px solid #2a2a4a;
  flex-shrink: 0;
}
.sp-names-group { display: flex; align-items: center; gap: 4px; }
.sp-names-label { font-size: 10px; color: #777; font-family: 'JetBrains Mono', monospace; white-space: nowrap; }
.sp-names-input {
  width: 90px; background: #1e1e38; border: 1px solid #444; border-radius: 3px;
  color: #e0e0e0; font-size: 11px; padding: 2px 5px; font-family: 'JetBrains Mono', monospace;
}
.sp-names-input:focus { outline: none; border-color: #4488ee; }

/* ── SCROLLBAR ──────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── SIDEBAR TIPS ───────────────────────────────────────────────── */
.sidebar-tips {
  padding: 10px 12px;
  font-size: 10px; color: var(--text3); line-height: 1.5;
  border-top: 1px solid var(--border);
}
.sidebar-tips b { color: var(--text2); }

/* ════════════════════════════════════════════════════════════════════
   STATE MACHINE EDITOR
   ════════════════════════════════════════════════════════════════════ */
#sm-editor-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5); z-index: 20000;
  display: none; align-items: center; justify-content: center;
}
#sm-editor {
  background: var(--bg); border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.3);
  width: 95vw; height: 90vh; max-width: 1400px;
  display: flex; flex-direction: column; overflow: hidden;
}
#sm-editor-header {
  background: var(--topbar); color: #fff; padding: 10px 16px;
  font-size: 13px; display: flex; align-items: center; gap: 8px;
  flex-shrink: 0;
}
#sm-editor-icon { font-size: 18px; }
#sm-editor-main { display: flex; flex: 1; overflow: hidden; }

/* Left panel */
#sm-editor-left {
  width: 170px; background: var(--panel); border-right: 1px solid var(--border);
  overflow-y: auto; flex-shrink: 0;
}
.sme-section-title {
  padding: 8px 10px 4px; font-size: 9px; font-weight: 700;
  color: var(--text2); letter-spacing: 1px;
}
#sme-palette { display: flex; flex-wrap: wrap; gap: 4px; padding: 4px 8px 8px; }
.sme-palette-item {
  padding: 4px 8px; background: var(--block-bg);
  border: 1px solid var(--border); border-radius: 4px;
  font-size: 10px; cursor: pointer; display: flex; align-items: center; gap: 3px;
  transition: all 0.1s; white-space: nowrap;
}
.sme-palette-item:hover { border-color: var(--accent); color: var(--accent); }
.sme-palette-item.active { border-color: var(--accent); background: var(--accent-light); color: var(--accent); }
.sme-pal-icon { font-size: 14px; }

.sme-list-item {
  padding: 5px 10px; font-size: 11px; cursor: pointer;
  display: flex; align-items: center; gap: 5px;
  border-bottom: 1px solid var(--border); transition: background 0.08s;
}
.sme-list-item:hover { background: var(--panel2); }
.sme-list-item.selected { background: var(--accent-light); color: var(--accent); }
.sme-li-icon { font-size: 12px; flex-shrink: 0; }
.sme-li-val { margin-left: auto; font-size: 10px; color: var(--text3); font-family: 'JetBrains Mono', monospace; }
.sme-li-del {
  margin-left: 4px; color: var(--accent3); font-weight: bold; font-size: 14px;
  cursor: pointer; opacity: 0.5; transition: opacity 0.1s;
}
.sme-li-del:hover { opacity: 1; }

/* Breadcrumb */
#sme-breadcrumb {
  padding: 6px 10px; background: var(--panel2); border-bottom: 1px solid var(--border);
  font-size: 11px; display: flex; align-items: center; gap: 4px; flex-shrink: 0;
}
.sme-bc-link { color: var(--accent); cursor: pointer; font-weight: 600; }
.sme-bc-link:hover { text-decoration: underline; }
.sme-bc-sep { color: var(--text3); }
.sme-bc-current { color: var(--text); font-weight: 600; }

/* Canvas */
#sm-editor-canvas {
  flex: 1; background: var(--canvas-bg); overflow: auto; position: relative;
  display: flex; flex-direction: column;
}
#sme-svg { width: 2000px; height: 2000px; min-width: 100%; min-height: 100%; flex: 1; }

/* Right panel */
#sm-editor-right {
  width: 220px; min-width: 180px; background: var(--panel); border-left: 1px solid var(--border);
  overflow-y: auto; overflow-x: hidden; flex-shrink: 0; padding-bottom: 12px;
}
.sme-prop-title {
  padding: 8px 10px; font-size: 12px; font-weight: 700; color: var(--accent);
  border-bottom: 1px solid var(--border); margin-bottom: 8px;
}
.sme-prop-row {
  padding: 3px 8px; display: flex; align-items: center; gap: 6px;
  font-size: 11px; margin-bottom: 4px;
}
.sme-prop-row label { width: 50px; flex-shrink: 0; font-weight: 600; color: var(--text2); font-size: 10px; text-transform: uppercase; }
.sme-prop-input {
  flex: 1; min-width: 0; background: var(--block-bg); border: 1px solid var(--border);
  color: var(--text); padding: 4px 6px; font-family: 'JetBrains Mono', monospace;
  font-size: 11px; border-radius: 3px; outline: none; box-sizing: border-box;
}
.sme-prop-input:focus { border-color: var(--accent); }
.sme-prop-val { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--text); }

.sme-port-section {
  padding: 8px 10px 4px; font-size: 10px; color: var(--text2);
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid var(--border); margin-top: 6px;
}
.sme-port-count { font-size: 9px; color: var(--text3); }
.sme-port-row {
  padding: 3px 10px; display: flex; align-items: center; gap: 6px;
}
.sme-port-num {
  width: 18px; height: 18px; border-radius: 50%; color: #fff;
  font-size: 10px; font-weight: 700; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0;
}
.sme-port-del { color: var(--accent3); font-size: 14px; cursor: pointer; opacity: 0.5; }
.sme-port-del:hover { opacity: 1; }
.sme-port-add {
  padding: 4px 10px; font-size: 10px; color: var(--accent);
  cursor: pointer; font-weight: 600;
}
.sme-port-add:hover { text-decoration: underline; }
.sme-help {
  padding: 10px; font-size: 10px; color: var(--text3); line-height: 1.5;
  border-top: 1px solid var(--border); margin-top: 10px;
}

/* Footer */
#sm-editor-footer {
  background: var(--panel); border-top: 1px solid var(--border);
  padding: 8px 16px; display: flex; align-items: center;
  justify-content: space-between; flex-shrink: 0;
}
#sme-status { font-size: 11px; color: var(--text2); }
#sme-footer-btns { display: flex; gap: 6px; }

.sme-btn {
  padding: 7px 16px; border-radius: 4px; font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 600; cursor: pointer; border: 1px solid var(--border);
  transition: all 0.12s; display: flex; align-items: center; gap: 5px;
}
.sme-btn-cancel { background: var(--block-bg); color: var(--text2); }
.sme-btn-cancel:hover { background: var(--panel2); }
.sme-btn-save { background: var(--accent); color: #fff; border-color: var(--accent); }
.sme-btn-save:hover { background: #004499; }
.sme-btn-gen { background: #333; color: #fff; border-color: #333; }
.sme-btn-gen:hover { background: #555; }
.sme-btn-apply { background: var(--accent); color: #fff; border-color: var(--accent); margin: 8px 10px; padding: 5px 14px; font-size: 11px; }
.sme-btn-apply:hover { background: #004499; }

/* ════════════════════════════════════════════════════════════════════
   C CODE GENERATOR DIALOG
   ════════════════════════════════════════════════════════════════════ */
#sm-codegen-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6); z-index: 30000;
  display: none; align-items: center; justify-content: center;
}
#sm-codegen {
  background: #1a1a1a; border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
  width: 700px; max-width: 90vw; max-height: 80vh;
  display: flex; flex-direction: column; overflow: hidden;
  color: #e0e0e0;
}
#smcg-title {
  padding: 12px 16px; font-size: 14px;
  border-bottom: 1px solid #333; flex-shrink: 0;
}
#smcg-options {
  padding: 10px 16px; display: flex; flex-wrap: wrap; gap: 12px;
  align-items: center; font-size: 12px; border-bottom: 1px solid #333;
  flex-shrink: 0;
}
#smcg-options label { display: flex; align-items: center; gap: 4px; }
.smcg-input {
  background: #333; border: 1px solid #555; color: #fff;
  padding: 3px 8px; font-family: 'JetBrains Mono', monospace;
  font-size: 11px; border-radius: 3px; width: 100px;
}
#smcg-code-wrap {
  flex: 1; overflow: auto; padding: 0;
  background: #111; min-height: 200px;
}
#smcg-code {
  padding: 16px; margin: 0; font-family: 'JetBrains Mono', monospace;
  font-size: 12px; line-height: 1.5; color: #b8d4e3; white-space: pre;
  tab-size: 4;
}
#smcg-footer {
  padding: 10px 16px; border-top: 1px solid #333;
  display: flex; align-items: center; justify-content: space-between;
  flex-shrink: 0;
}
#smcg-status { font-size: 11px; color: #8a8; font-family: 'JetBrains Mono', monospace; }
#smcg-btns { display: flex; gap: 6px; }

/* ── Breadcrumb ──────────────────────────────────────────────────── */
#breadcrumb {
  display: flex; align-items: center; gap: 2px;
  padding: 4px 12px; background: #1a1a2e; border-bottom: 1px solid #333;
  font-size: 12px; font-family: 'JetBrains Mono', monospace;
  flex-shrink: 0;
}
.bc-link {
  color: #7c9ecf; cursor: pointer; padding: 2px 6px; border-radius: 3px;
  transition: background 0.15s;
}
.bc-link:hover { background: rgba(124,158,207,0.15); text-decoration: underline; }
.bc-sep { color: #555; margin: 0 2px; }
.bc-current { color: #e0e0e0; font-weight: 600; padding: 2px 6px; }

/* ── Help Modal ───────────────────────────────────────────────────── */
#help-modal {
  display: none; position: fixed; inset: 0; z-index: 9000;
  background: rgba(0,0,0,.55); align-items: center; justify-content: center;
}
#help-modal.visible { display: flex; }
#help-inner {
  background: #1e1e1e; color: #ccc; border-radius: 10px;
  width: min(900px, 92vw); max-height: 88vh; display: flex; flex-direction: column;
  box-shadow: 0 8px 32px rgba(0,0,0,.5); border: 1px solid #333;
}
#help-header {
  padding: 12px 20px; border-bottom: 1px solid #333;
  display: flex; align-items: center; justify-content: space-between; flex-shrink: 0;
}
#help-header span { font-size: 16px; font-weight: 700; color: #e0e0e0; }
#help-close { cursor: pointer; font-size: 20px; color: #888; line-height: 1; }
#help-close:hover { color: #ccc; }

/* Tab bar */
#help-tabs {
  display: flex; border-bottom: 1px solid #333; background: #1a1a1a;
  flex-shrink: 0; padding: 0 6px;
}
.help-tab {
  padding: 9px 11px; cursor: pointer; font-size: 12px; color: #888;
  border-bottom: 2px solid transparent; transition: color 0.15s, border-color 0.15s;
  user-select: none; white-space: nowrap;
}
.help-tab:hover { color: #bbb; }
.help-tab.active { color: #8cf; border-bottom-color: #8cf; }

/* Tab panels */
#help-panels { flex: 1; overflow: hidden; display: flex; flex-direction: column; min-height: 0; }
.help-panel { display: none; flex: 1; overflow-y: auto; padding: 18px 22px; font-size: 13px; line-height: 1.65; }
.help-panel.active { display: block; }
.help-panel h3 { color: #8cf; margin: 18px 0 8px; font-size: 14px; }
.help-panel h4 { color: #aed581; margin: 14px 0 6px; font-size: 13px; }
.help-panel p  { margin: 4px 0 10px; }
.help-panel code { background: #2a2a2a; padding: 1px 5px; border-radius: 3px; font-size: 12px; color: #f0c674; }
.help-panel ul { margin: 4px 0 10px 18px; }
.help-panel ol { margin: 4px 0 10px 22px; }
.help-panel li { margin: 3px 0; }

/* Quick Start cards */
.qs-overview {
  background: #1a1e2a; border: 1px solid #2d3550; border-radius: 8px;
  padding: 14px 16px; margin-bottom: 18px;
}
.qs-overview p { margin: 6px 0; color: #b0b8cc; font-size: 12px; line-height: 1.6; }
.qs-overview b { color: #8cf; }
.qs-overview ul { margin: 6px 0 0 16px; padding: 0; color: #9aabcc; font-size: 12px; line-height: 1.7; }
.qs-step {
  display: flex; gap: 14px; align-items: flex-start; margin: 0 0 12px;
  background: #232323; border: 1px solid #2e2e2e; border-radius: 7px; padding: 12px 14px;
}
.qs-num {
  background: #8cf; color: #0a0a18; font-weight: 800; font-size: 13px;
  border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0; margin-top: 1px;
}
.qs-text { flex: 1; }
.qs-text strong { color: #e0e0e0; font-size: 13px; }
.qs-text p { margin: 3px 0 0; color: #aaa; font-size: 12px; }
.qs-tip {
  background: #1c2a1c; border: 1px solid #3a5a3a; border-radius: 6px;
  padding: 10px 14px; margin: 14px 0; font-size: 12px; color: #aed581;
}
.qs-tip b { color: #c5e8a0; }

/* Block Reference */
#blkref-search {
  width: 100%; box-sizing: border-box; background: #252525; border: 1px solid #444;
  color: #ccc; border-radius: 5px; padding: 7px 12px; font-size: 13px; margin-bottom: 14px;
  outline: none;
}
#blkref-search:focus { border-color: #8cf; }
#blkref-search::placeholder { color: #555; }
.blkref-cat-header {
  margin: 18px 0 6px; font-size: 11px; font-weight: 700; color: #aed581;
  text-transform: uppercase; letter-spacing: 0.08em; padding: 3px 0;
  border-bottom: 1px solid #2e2e2e;
}
.blkref-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 6px 4px; border-bottom: 1px solid #262626;
}
.blkref-item:last-child { border-bottom: none; }
.blkref-name {
  font-size: 12px; font-weight: 600; color: #f0c674;
  min-width: 108px; flex-shrink: 0; line-height: 1.5;
}
.blkref-body { flex: 1; }
.blkref-desc { font-size: 12px; color: #bbb; margin: 0 0 2px; }
.blkref-params { font-size: 11px; color: #777; margin: 0; font-style: italic; }

/* Shortcuts */
.sc-tbl { width: 100%; border-collapse: collapse; margin: 8px 0 18px; font-size: 12px; }
.sc-tbl th { background: #252525; color: #8cf; padding: 6px 12px; text-align: left; border: 1px solid #333; font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; }
.sc-tbl td { padding: 5px 12px; border: 1px solid #2e2e2e; vertical-align: top; }
.sc-tbl tr:nth-child(even) td { background: #1f1f1f; }
kbd {
  display: inline-block; background: #2a2a2a; border: 1px solid #555;
  border-radius: 4px; padding: 1px 6px; font-size: 11px; font-family: inherit;
  color: #f0c674; white-space: nowrap;
}

.help-tbl {
  width: 100%; border-collapse: collapse; margin: 8px 0 14px; font-size: 12px;
}
.help-tbl th {
  background: #2a2a2a; color: #8cf; padding: 6px 10px; text-align: left;
  border: 1px solid #444; font-weight: 600;
}
.help-tbl td {
  padding: 5px 10px; border: 1px solid #333; vertical-align: top;
}
.help-tbl tr:nth-child(even) td { background: #252525; }
.help-tbl tr:hover td { background: #2c3040; }

/* ═══════════════════════════════════════════════════════════════
   Code Generation Modal
══════════════════════════════════════════════════════════════════ */
#codegen-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.72);
  z-index: 9000;
  align-items: center; justify-content: center;
}
#codegen-overlay.open { display: flex; }

#codegen-box {
  width: 92vw; max-width: 1200px;
  height: 88vh;
  background: #1a1a1f;
  border: 1px solid #3a3a4a;
  border-radius: 10px;
  display: flex; flex-direction: column;
  box-shadow: 0 24px 80px rgba(0,0,0,0.7);
  overflow: hidden;
}

#codegen-header {
  display: flex; align-items: center; justify-content: space-between;
  background: #141418;
  padding: 10px 18px;
  border-bottom: 1px solid #2e2e3a;
  flex-shrink: 0;
}
#codegen-header-title {
  font-size: 13px; font-weight: 700; color: #c0c0e0; letter-spacing: 0.04em;
  display: flex; align-items: center; gap: 10px;
}
#codegen-header-title .cg-badge {
  font-size: 10px; font-weight: 600; padding: 2px 8px; border-radius: 99px;
  background: rgba(192,57,43,0.18); color: #e74c3c; border: 1px solid rgba(231,76,60,0.3);
}
#codegen-close {
  background: none; border: none; color: #888; cursor: pointer;
  font-size: 22px; line-height: 1; padding: 2px 6px; border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}
#codegen-close:hover { color: #fff; background: rgba(255,255,255,0.08); }

#codegen-body {
  display: flex; flex: 1; min-height: 0;
}

/* ── Settings sidebar ────────────────────────────────────────── */
#codegen-settings {
  width: 232px; flex-shrink: 0;
  background: #16161c;
  border-right: 1px solid #2a2a38;
  overflow-y: auto; padding: 14px 14px;
  display: flex; flex-direction: column; gap: 10px;
}
.cg-section {
  font-size: 10px; font-weight: 700; letter-spacing: 0.1em;
  color: #666; text-transform: uppercase; margin-top: 6px;
}
.cg-lang-row {
  display: flex; gap: 6px;
}
.cg-lang-btn {
  flex: 1; padding: 6px 0; border-radius: 6px;
  border: 1px solid #333; background: #202028;
  color: #999; font-size: 12px; font-weight: 700; cursor: pointer;
  transition: all 0.15s; font-family: 'JetBrains Mono', monospace;
}
.cg-lang-btn.active {
  background: rgba(192,57,43,0.15);
  border-color: #e74c3c; color: #e74c3c;
}
.cg-lang-btn:hover:not(.active) { border-color: #555; color: #ccc; }

#codegen-settings input[type="text"],
#codegen-settings select {
  width: 100%; box-sizing: border-box;
  background: #1e1e28; border: 1px solid #383848;
  color: #d0d0f0; font-size: 12px; font-family: 'JetBrains Mono', monospace;
  padding: 6px 8px; border-radius: 6px; outline: none;
  transition: border-color 0.15s;
}
#codegen-settings input[type="text"]:focus,
#codegen-settings select:focus { border-color: #e74c3c; }
#codegen-settings select option { background: #1e1e28; }

.cg-checkbox-row {
  display: flex; align-items: center; gap: 8px;
  color: #aaa; font-size: 12px; cursor: pointer;
  padding: 3px 0;
}
.cg-checkbox-row input[type="checkbox"] {
  width: 14px; height: 14px; accent-color: #e74c3c;
  cursor: pointer; flex-shrink: 0;
}

.cg-opt-group {
  display: none; flex-direction: column; gap: 8px;
}
.cg-opt-group.visible { display: flex; }

#cg-generate {
  margin-top: auto; width: 100%; padding: 9px 0;
  background: linear-gradient(135deg, #c0392b, #e74c3c);
  border: none; border-radius: 7px; color: #fff;
  font-size: 13px; font-weight: 700; cursor: pointer;
  letter-spacing: 0.04em;
  transition: opacity 0.15s, transform 0.1s;
}
#cg-generate:hover { opacity: 0.88; transform: translateY(-1px); }
#cg-generate:active { transform: translateY(0); opacity: 1; }

/* ── Code output panel ────────────────────────────────────────── */
#codegen-output {
  flex: 1; display: flex; flex-direction: column; min-width: 0;
}
#codegen-toolbar {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  background: #141418; border-bottom: 1px solid #2a2a38;
  flex-shrink: 0;
}
#cg-stats {
  flex: 1; font-size: 11px; color: #666; font-family: 'JetBrains Mono', monospace;
}
.cg-toolbar-btn {
  padding: 5px 14px; border-radius: 6px;
  border: 1px solid #383848; background: #202028;
  color: #bbb; font-size: 11px; font-weight: 600; cursor: pointer;
  transition: all 0.15s; font-family: inherit;
}
.cg-toolbar-btn:hover { border-color: #e74c3c; color: #e74c3c; background: rgba(231,76,60,0.08); }
.cg-toolbar-btn.success { border-color: #27ae60; color: #27ae60; background: rgba(39,174,96,0.1); }

#codegen-code-wrap {
  flex: 1; overflow: auto; padding: 0;
  background: #0f0f14;
}
#codegen-code {
  margin: 0; padding: 18px 22px;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 12px; line-height: 1.65;
  color: #c8ccd8;
  white-space: pre;
  tab-size: 4;
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
}

/* Syntax highlight classes (applied by JS) */
.cg-kw   { color: #c792ea; font-weight: 600; }   /* keywords */
.cg-fn   { color: #82aaff; }                       /* function names */
.cg-str  { color: #c3e88d; }                       /* strings / doc */
.cg-num  { color: #f78c6c; }                       /* numbers */
.cg-cmt  { color: #546e7a; font-style: italic; }  /* comments */
.cg-type { color: #ffcb6b; }                       /* types */
.cg-pp   { color: #89ddff; }                       /* preprocessor / decorators */

/* ── BETA BADGE ─────────────────────────────────────────────────── */
.beta-badge {
  font-size: 8px; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #1a1a0a;
  padding: 2px 5px;
  border-radius: 4px;
  vertical-align: middle;
  position: relative; top: -1px;
}

/* ── BETA NOTICE BANNER ─────────────────────────────────────────── */
#beta-banner {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  background: #78350f;
  color: #fde68a;
  font-size: 11.5px;
  padding: 6px 16px;
  flex-shrink: 0;
  z-index: 90;
}
#beta-banner a { color: #fbbf24; text-decoration: underline; cursor: pointer; }
#beta-banner a:hover { color: #fff; }
.beta-banner-close {
  background: none; border: 1px solid rgba(251,191,36,0.35); color: #fde68a;
  border-radius: 4px; padding: 1px 6px; cursor: pointer; font-size: 10px; flex-shrink: 0;
}
.beta-banner-close:hover { background: rgba(251,191,36,0.15); }

/* ── STATUSBAR COPYRIGHT + FEEDBACK ────────────────────────────── */
.statusbar-copyright {
  margin-left: auto; font-size: 10px; color: var(--text3); white-space: nowrap;
}
.statusbar-feedback-btn {
  background: #f59e0b; border: 1px solid #d97706; color: #1a1a0a;
  font-family: 'Inter', sans-serif; font-size: 10px; font-weight: 700;
  padding: 2px 9px; border-radius: 5px; cursor: pointer; white-space: nowrap;
  transition: all 0.15s;
}
.statusbar-feedback-btn:hover { background: #fbbf24; border-color: #f59e0b; }

/* ── FEEDBACK MODAL ─────────────────────────────────────────────── */
#feedback-modal {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.55); z-index: 600;
  align-items: center; justify-content: center;
}
#feedback-inner {
  background: #faf9f4; border-radius: 12px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.35);
  width: 480px; max-width: calc(100vw - 40px);
  display: flex; flex-direction: column; overflow: hidden;
}
#feedback-header {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--topbar); color: #fff;
  padding: 12px 16px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.02em;
}
#feedback-close {
  cursor: pointer; opacity: 0.6; font-size: 14px;
  transition: opacity 0.15s;
}
#feedback-close:hover { opacity: 1; }
#feedback-body {
  padding: 18px 20px; display: flex; flex-direction: column; gap: 10px;
}
.fb-intro {
  font-size: 12px; color: var(--text2); line-height: 1.5;
  padding: 8px 10px; background: #f0efe8; border-radius: 6px;
  border-left: 3px solid #f59e0b;
}
.fb-label {
  font-size: 11px; font-weight: 600; color: var(--text2);
  text-transform: uppercase; letter-spacing: 0.5px;
}
.fb-req { color: #e74c3c; }
.fb-opt { font-weight: 400; text-transform: none; letter-spacing: 0; color: var(--text3); }
#fb-category {
  padding: 7px 10px; border-radius: 6px;
  border: 1px solid var(--border); background: #fff;
  font-family: 'Inter', sans-serif; font-size: 12px;
  color: var(--text); cursor: pointer; outline: none;
}
#fb-category:focus { border-color: var(--accent); }
#fb-description {
  padding: 9px 10px; border-radius: 6px;
  border: 1px solid var(--border); background: #fff;
  font-family: 'Inter', sans-serif; font-size: 12px; color: var(--text);
  resize: vertical; min-height: 110px; outline: none; line-height: 1.5;
  transition: border-color 0.15s;
}
#fb-description:focus { border-color: var(--accent); }
#fb-email {
  padding: 7px 10px; border-radius: 6px;
  border: 1px solid var(--border); background: #fff;
  font-family: 'Inter', sans-serif; font-size: 12px; color: var(--text);
  outline: none; transition: border-color 0.15s;
}
#fb-email:focus { border-color: var(--accent); }
#feedback-footer {
  display: flex; justify-content: flex-end; gap: 8px;
  padding: 12px 20px; border-top: 1px solid var(--border);
  background: #f0efe8;
}
.fb-btn {
  padding: 8px 18px; border-radius: 7px;
  font-family: 'Inter', sans-serif; font-size: 12px; font-weight: 600;
  cursor: pointer; border: 1px solid transparent; transition: all 0.15s;
}
.fb-btn.cancel {
  background: #fff; border-color: var(--border); color: var(--text2);
}
.fb-btn.cancel:hover { background: var(--panel); }
.fb-btn.send {
  background: linear-gradient(135deg, #0055bb, #0044aa);
  color: #fff; border-color: #0044aa;
}
.fb-btn.send:hover { opacity: 0.88; transform: translateY(-1px); }
.fb-btn.send:active { transform: translateY(0); }