/* ============================================================
   playground.css — Arduino Playground (Modern Tech Edition)
   ============================================================ */

:root {
  /* Nordic Blueprint & Technical Slate Surfaces */
  --paper:       #1b1f27;       /* Canvas background / Base */
  --paper-2:     #232834;       /* Card/Panel surface */
  --paper-3:     #2c3342;       /* Elevated surface/hover */
  --paper-deep:  #14171d;       /* Inset shadows / sunken containers */
  --paper-inset: #161920;       /* Stage canvas background */

  /* High-Contrast Technical Typography */
  --ink:         #e6edf3;       /* Primary text (Crisp & high contrast) */
  --ink-2:       #b4becc;       /* Secondary text */
  --ink-3:       #7f8c9f;       /* Muted text / labels */
  --ink-4:       #556070;       /* Dim text / placeholders */
  --ink-faint:   #343b48;       /* Inactive lines / subtle borders */

  /* Balanced Engineering Accents (Clean, non-neon) */
  --red-ink:     #f87171;       /* Danger / Stop / VCC */
  --red-soft:    #fca5a5;
  --blue-ink:    #5b9cf6;       /* Primary accent / Nordic Blue */
  --green-ink:   #34d399;       /* Success / Run / Calm Emerald */
  --amber-ink:   #fbbf24;       /* Warning / Signal Amber */

  /* Borders & Dividers */
  --rule:        rgba(255, 255, 255, 0.09);
  --rule-soft:   rgba(255, 255, 255, 0.05);
  --rule-bold:   rgba(255, 255, 255, 0.16);

  /* Legacy aliases */
  --bg-page:   var(--paper);
  --bg-stage:  var(--paper-inset);
  --bg-card:   var(--paper-2);
  --border:    var(--rule);
  --border-2:  var(--rule-bold);
  --text:      var(--ink);
  --text-2:    var(--ink-2);
  --text-3:    var(--ink-3);
  --accent:    var(--blue-ink);
  --green:     var(--green-ink);
  --red:       var(--red-ink);
  --amber:     var(--amber-ink);
  --violet:    #a78bfa;
  --line-soft: rgba(255, 255, 255, 0.22);
  --line-hard: rgba(255, 255, 255, 0.85);
  --wire:      var(--blue-ink);
}

/* ========== Base ========== */
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; padding: 0; }
body {
  height: 100dvh;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", "Inter", "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(circle at 50% 10%, #222733 0%, #15181f 100%);
  color: var(--ink);
  padding: 12px;
  -webkit-font-smoothing: antialiased;
}
.app { width: 100%; height: 100%; }

/* ========== Stage ========== */
.stage {
  position: relative;
  width: 100%; height: 100%;
  background-color: var(--paper-inset);
  border: 1px solid var(--rule-bold);
  border-radius: 14px;
  overflow: hidden;
  box-shadow:
    inset 0 0 60px rgba(0, 0, 0, 0.4),
    0 16px 36px -12px rgba(0, 0, 0, 0.5);
}
.stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(91, 156, 246, 0.18) 1px, transparent 1px),
    linear-gradient(to right, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 24px 24px, 120px 120px, 120px 120px;
  pointer-events: none;
  z-index: 0;
}
.watermark {
  position: absolute;
  top: 14px; right: 18px;
  z-index: 2;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--ink-4);
  opacity: .7;
  pointer-events: none;
  font-weight: 500;
  text-transform: uppercase;
}
.sim-title {
  position: absolute;
  top: 14px; left: 16px;
  z-index: 4;
  display: flex; align-items: center; gap: 8px;
  padding: 6px 12px 6px 6px;
  background: var(--paper-2);
  border: 1px solid var(--rule-bold);
  border-radius: 10px;
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", "Inter", sans-serif;
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.8px;
  pointer-events: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}
.sim-title .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  background: var(--blue-ink);
  color: var(--paper-deep);
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  font-weight: 700;
  border-radius: 6px;
}
svg#scene {
  position: relative;
  display: block;
  width: 100%; height: 100%;
  z-index: 3;
  touch-action: none;
}

/* ========== Palette (Floating Panel) ========== */
.palette {
  position: absolute;
  top: 58px; left: 16px;
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px;
  background: var(--paper-2);
  border: 1px solid var(--rule-bold);
  border-radius: 12px;
  min-width: 180px;
  box-shadow: 0 10px 24px -4px rgba(0, 0, 0, 0.35);
  transition: all .2s cubic-bezier(0.16, 1, 0.3, 1);
}
.mobile-pal-trigger {
  display: none;
}
.pal-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--ink-3);
  font-weight: 700;
  margin-bottom: 6px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule);
}
.pal-toggle {
  background: var(--paper-3);
  border: 1px solid var(--rule);
  color: var(--ink-3);
  border-radius: 6px;
  cursor: pointer;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 6px;
  line-height: 1;
  transition: all .15s ease;
  flex-shrink: 0;
}
.pal-toggle:hover {
  background: var(--blue-ink);
  color: var(--paper-deep);
  border-color: var(--blue-ink);
}
.pal-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--paper-3);
  color: var(--ink-2);
  border: 1px solid var(--rule);
  border-radius: 8px;
  cursor: pointer;
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", "Inter", sans-serif;
  font-size: 11.5px;
  font-weight: 600;
  text-align: left;
  letter-spacing: .2px;
  transition: all .15s cubic-bezier(0.16, 1, 0.3, 1);
}
.pal-item:hover {
  background: rgba(91, 156, 246, 0.14);
  border-color: var(--blue-ink);
  color: var(--ink);
  transform: translateX(3px);
}
.pal-item:active {
  transform: translateX(1px) scale(0.98);
  background: rgba(91, 156, 246, 0.22);
}
.pal-icon {
  font-size: 14px;
  color: var(--blue-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
}
.pal-hint {
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 10.5px;
  color: var(--ink-4);
  line-height: 1.5;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--rule);
}
.pal-hint b {
  color: var(--ink-2);
  font-weight: 600;
}
.palette.collapsed {
  min-width: 0;
  padding: 8px;
  gap: 0;
}
.palette.collapsed .pal-title > span,
.palette.collapsed .pal-item,
.palette.collapsed .pal-hint { display: none; }
.palette.collapsed .pal-title {
  margin-bottom: 0;
  justify-content: center;
  padding-bottom: 0;
  border-bottom: 0;
}

/* ========== Toolbar ========== */
/* ========== Toolbar (Floating Island Dock) ========== */
#simToolbar {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: var(--paper-2);
  border: 1px solid var(--rule-bold);
  border-radius: 16px;
  padding: 6px 14px 10px;
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", "Inter", sans-serif;
  font-size: 12px;
  color: var(--ink);
  z-index: 10;
  box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.45);
  max-width: calc(100% - 32px);
  transition: transform .35s cubic-bezier(0.16, 1, 0.3, 1), opacity .25s ease, bottom .35s cubic-bezier(0.16, 1, 0.3, 1), padding .3s ease, border-radius .3s ease;
}

/* Toolbar Toggle handle (Arrow) */
.tb-toggle-btn {
  background: var(--paper-3) !important;
  border: 1px solid var(--rule) !important;
  color: var(--blue-ink) !important;
  border-radius: 6px !important;
  font-family: inherit !important;
  font-size: 11px !important;
  font-weight: 700 !important;
  padding: 3px 14px !important;
  cursor: pointer;
  line-height: 1 !important;
  transition: all .2s cubic-bezier(0.16, 1, 0.3, 1);
  margin-bottom: 2px;
}
.tb-toggle-btn:hover {
  background: var(--blue-ink) !important;
  color: var(--paper-deep) !important;
  border-color: var(--blue-ink) !important;
  transform: scale(1.05);
}

/* Collapsed Toolbar state with smooth slide down animation */
#simToolbar.collapsed {
  bottom: 12px;
  padding: 4px 10px;
  transform: translateX(-50%) translateY(0);
}
#simToolbar.collapsed .tb-content {
  max-height: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
}

/* Auto-hide subtle translucency when not hovered */
#simToolbar.autohide:not(:hover):not(:focus-within) {
  opacity: 0.45;
  transform: translateX(-50%) translateY(65%);
}

.tb-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-height: 400px;
  opacity: 1;
  transform: translateY(0);
  transition: max-height .35s cubic-bezier(0.16, 1, 0.3, 1), opacity .25s ease, transform .35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}
#simToolbar .tb-row {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}
#simToolbar button {
  background: var(--paper-3);
  border: 1px solid var(--rule);
  color: var(--ink-2);
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .2px;
  transition: all .15s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
#simToolbar button:hover:not(.active):not(:disabled) {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--rule-bold);
  transform: translateY(-1px);
}
#simToolbar button:active:not(:disabled) {
  transform: translateY(0) scale(0.97);
}
#simToolbar button.active {
  background: var(--blue-ink);
  border-color: var(--blue-ink);
  color: var(--paper-deep);
  font-weight: 700;
}
#simToolbar button:disabled {
  opacity: .35;
  cursor: not-allowed;
  filter: grayscale(1);
}
#simToolbar .sim-row {
  border-top: 1px solid var(--rule);
  padding-top: 8px;
}
.tb-btn.success {
  background: rgba(52, 211, 153, 0.14) !important;
  color: var(--green-ink) !important;
  border-color: rgba(52, 211, 153, 0.35) !important;
}
.tb-btn.success:hover:not(:disabled) {
  background: var(--green-ink) !important;
  color: var(--paper-deep) !important;
}
.tb-btn.danger {
  background: rgba(248, 113, 113, 0.14) !important;
  color: var(--red-ink) !important;
  border-color: rgba(248, 113, 113, 0.35) !important;
}
.tb-btn.danger:hover:not(:disabled) {
  background: var(--red-ink) !important;
  color: #fff !important;
}
.tb-btn-flow.active {
  background: rgba(91, 156, 246, 0.18) !important;
  border-color: var(--blue-ink) !important;
  color: var(--ink) !important;
}

#simToolbar #netStatus {
  padding: 2px 10px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--ink-4);
  white-space: nowrap;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 6px;
  border: 1px solid var(--rule);
}
#simToolbar #netStatus.ok {
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.3);
}
#simToolbar #netStatus.err {
  color: #fb7185;
  border-color: rgba(244, 63, 94, 0.3);
}

/* ========== Flow list (Wire Connections Collapsible Table) ========== */
#simToolbar .fp-list {
  border-top: 1px solid var(--rule);
  padding-top: 8px;
  max-height: 22vh;
  overflow-y: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--ink-2);
  min-width: 280px;
  display: none;
}
#simToolbar .fp-list.visible {
  display: block;
}
#simToolbar .fp-list:empty { display: none; }
#simToolbar .fp-empty {
  font-size: 11px;
  color: var(--ink-4);
  padding: 6px 4px;
}
#simToolbar .fp-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  border-radius: 6px;
  line-height: 1.5;
  transition: background .12s;
}
#simToolbar .fp-row:hover { background: rgba(255, 255, 255, 0.05); }
#simToolbar .fp-dot {
  width: 8px; height: 8px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 6px currentColor;
}
#simToolbar .fp-from,
#simToolbar .fp-to {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#simToolbar .fp-arrow {
  font-weight: 700;
  flex-shrink: 0;
  color: var(--blue-ink);
}
#simToolbar .fp-del {
  background: transparent;
  border: 0;
  color: var(--red-ink);
  cursor: pointer;
  padding: 0 6px;
  border-radius: 4px;
  font: inherit;
  line-height: 1;
  flex-shrink: 0;
  align-self: center;
  font-weight: 700;
}
#simToolbar .fp-del:hover {
  background: rgba(244, 63, 94, 0.2);
  color: #fff;
}

/* ========== SVG classes (Modern Dark PCB & Realistic Components) ========== */
.board-outline {
  fill: #004d5a;
  stroke: #00878a;
  stroke-width: 2;
  stroke-linejoin: round;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.7));
}
.board-inner {
  fill: none;
  stroke: rgba(0, 180, 190, 0.35);
  stroke-width: 1;
  stroke-dasharray: 6 6;
}
.hole {
  fill: #080c14;
  stroke: #94a3b8;
  stroke-width: 1.5;
}
.hole-in {
  fill: #04060a;
  stroke: #cbd5e1;
  stroke-width: 0.8;
}
.hdr-body {
  fill: #11141a;
  stroke: #334155;
  stroke-width: 1.2;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}
.hdr-pin {
  fill: #1e2533;
  stroke: #475569;
  stroke-width: 0.8;
}
.hdr-hole {
  fill: #000000;
  stroke: #d97706; /* Gold contact ring */
  stroke-width: 0.8;
}
.pin-label {
  fill: #e2e8f0;
  font-size: 9px;
  font-family: "JetBrains Mono", monospace;
  user-select: none;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.silk {
  fill: none;
  stroke: rgba(255, 255, 255, 0.75);
  stroke-width: 1.1;
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-weight: 800;
  text-anchor: middle;
  letter-spacing: 2px;
}
.comp {
  fill: #181c24;
  stroke: #475569;
  stroke-width: 1.4;
  stroke-linejoin: round;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.4));
}
.comp-thin {
  fill: none;
  stroke: #94a3b8;
  stroke-width: 1;
  stroke-linejoin: round;
  opacity: .85;
}

/* ========== Wire (Wokwi / Tinkercad Pro Edition) ========== */
.layer-wires {
  /* Wire layer sits explicitly above components */
  pointer-events: auto;
}
.wire {
  fill: none;
  stroke-width: 4 !important;
  stroke-linejoin: round;
  stroke-linecap: round;
  pointer-events: none;
  filter: drop-shadow(0 3px 5px rgba(0, 0, 0, 0.75));
  transition: stroke 0.15s, stroke-width 0.15s;
}
.wire-hover {
  stroke-width: 5.5 !important;
  filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.95)) drop-shadow(0 3px 6px rgba(0, 0, 0, 0.9)) !important;
}
.seg-hit {
  cursor: grab;
  transition: stroke 0.12s;
}
.seg-hit:hover {
  stroke: rgba(56, 189, 248, 0.25) !important;
}
.seg-hit:active {
  cursor: grabbing;
  stroke: rgba(56, 189, 248, 0.45) !important;
}

/* Wokwi / Tinkercad Corner Vertex Handles */
.wire-corner-node {
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.7));
  transition: transform 0.15s, r 0.15s;
}
.node-hit {
  cursor: move;
}
.node-hit:hover + .wire-corner-node,
.wire-corner-node:hover {
  r: 6;
  fill: #38bdf8;
  stroke: #ffffff;
}

/* ========== Resistor Styling (Realistic Ceramic Body + Color Bands) ========== */
.resistor-lead {
  stroke: #94a3b8;
  stroke-width: 2.2;
  stroke-linecap: round;
}
.resistor-body {
  fill: #d4a373; /* Classic ceramic tan/beige */
  stroke: #a27045;
  stroke-width: 1.5;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.45));
}
.band-red {
  fill: #e11d48;
}
.band-brown {
  fill: #78350f;
}
.band-gold {
  fill: #f59e0b;
}
.resistor-label {
  fill: #94a3b8;
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* ========== LED Styling (Glossy Optical Lens Dome + Neon Emission) ========== */
.led-lead {
  stroke: #94a3b8;
  stroke-width: 2.2;
  stroke-linecap: round;
}
.led-dome {
  fill: rgba(56, 189, 248, 0.15);
  stroke: #38bdf8;
  stroke-width: 2;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.5));
}
.led-core {
  fill: rgba(56, 189, 248, 0.25);
  stroke: rgba(56, 189, 248, 0.6);
  stroke-width: 1;
  transition: all 0.2s ease;
}
.led-shine {
  fill: rgba(255, 255, 255, 0.4);
  transition: fill 0.2s ease;
}
.led-label {
  fill: #38bdf8;
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  letter-spacing: 1px;
}

/* LED Lit / Glowing State */
.instance[data-type="led"].lit .led-dome {
  fill: #38bdf8;
  stroke: #e0f2fe;
  stroke-width: 2.5;
  filter: drop-shadow(0 0 16px rgba(56, 189, 248, 0.95)) drop-shadow(0 0 32px rgba(56, 189, 248, 0.7));
}
.instance[data-type="led"].lit .led-core {
  fill: #ffffff;
  stroke: #ffffff;
}
.instance[data-type="led"].lit .led-shine {
  fill: #ffffff;
}
.instance[data-type="led"].lit .led-label {
  fill: #38bdf8;
  filter: drop-shadow(0 0 6px rgba(56, 189, 248, 0.8));
}

/* ========== GND Symbol Styling ========== */
.gnd-symbol-line {
  stroke: #38bdf8;
  stroke-linecap: round;
  transition: stroke 0.2s ease;
}
.gnd-symbol-line.main { stroke-width: 2.4; }
.gnd-symbol-line.l1   { stroke-width: 2.6; }
.gnd-symbol-line.l2   { stroke-width: 2.2; }
.gnd-symbol-line.l3   { stroke-width: 1.8; }

/* ========== Tactile Push Button Styling ========== */
.btn-lead {
  stroke: #94a3b8;
  stroke-width: 3.5;
  stroke-linecap: round;
  transition: stroke 0.2s ease;
}
.btn-body-metal {
  fill: #475569;
  stroke: #64748b;
  stroke-width: 1.5;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.45));
}
.btn-bracket {
  fill: #334155;
  stroke: #1e293b;
  stroke-width: 1;
}
.btn-rivet {
  fill: #0f172a;
  stroke: #1e293b;
  stroke-width: 1;
}
.btn-rivet-shine {
  fill: #94a3b8;
}
.btn-cap-rim {
  fill: #1e293b;
  stroke: #334155;
  stroke-width: 1.5;
}
.btn-cap {
  fill: #78350f; /* classic warm amber-brown round button */
  stroke: #92400e;
  stroke-width: 2;
  cursor: pointer;
  transition: all 0.1s cubic-bezier(0.16, 1, 0.3, 1);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}
.btn-cap:hover {
  fill: #92400e;
  stroke: #b45309;
}
.btn-cap:active, .instance[data-type="button"].pressed .btn-cap {
  fill: #451a03;
  stroke: #78350f;
  transform-origin: center;
  filter: drop-shadow(0 0 8px rgba(245, 158, 11, 0.6));
}
.btn-schematic-line {
  stroke: #38bdf8;
  stroke-width: 1.5;
  stroke-linecap: round;
  opacity: 0.75;
}
.btn-contact {
  stroke: #f59e0b;
  stroke-width: 2;
  stroke-linecap: round;
  transition: all 0.1s ease;
}
.instance[data-type="button"].pressed .btn-contact {
  stroke: #10b981;
}
.btn-label {
  fill: #94a3b8;
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* ========== Component Pin Terminals (Copper / Gold Eyelets) ========== */
.comp-pin-terminal {
  fill: #0c1017;
  stroke: #38bdf8;
  stroke-width: 1.5;
  transition: all 0.15s ease;
}
.instance:hover .comp-pin-terminal {
  stroke: #67e8f9;
  fill: #1e293b;
  r: 4.2;
}

/* LED glow override */
#ledGlow stop { stop-color: #38bdf8; }
#ledGlow stop:nth-child(1) { stop-opacity: .85; }
#ledGlow stop:nth-child(2) { stop-opacity: .35; }

/* ========== Pin highlight ========== */
@keyframes pin-pulse {
  0%   { transform: scale(1); opacity: .9; }
  100% { transform: scale(2.2); opacity: 0; }
}
.pin-highlight-pulse {
  animation: pin-pulse 1.4s ease-out infinite;
  transform-box: fill-box;
  transform-origin: center;
}

/* ========== Instance ========== */
.instance { cursor: move; transition: none; }

/* ========== Wire picker wizard (Dynamic Floating Modal Card) ========== */
#wirePicker {
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%);
  width: min(520px, 92vw);
  max-height: min(480px, 75vh);
  display: flex;
  flex-direction: column;
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid var(--rule-bold);
  border-radius: 18px;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.5);
  z-index: 100;
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 14px;
  line-height: 1.4;
  animation: wp-pop .22s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes wp-pop {
  from { transform: translateX(-50%) translateY(20px) scale(0.96); opacity: 0; }
  to   { transform: translateX(-50%) translateY(0) scale(1);       opacity: 1; }
}
.wp-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper-3);
}
.wp-back, .wp-close {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1;
  width: 34px; height: 34px;
  border-radius: 8px;
  cursor: pointer;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all .15s;
}
.wp-back:hover, .wp-close:hover {
  background: var(--blue-ink);
  color: var(--paper-deep);
  border-color: var(--blue-ink);
}
.wp-title-wrap {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.wp-title {
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
  letter-spacing: .2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.wp-subtitle {
  font-size: 11px;
  color: var(--ink-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.wp-body {
  overflow-y: auto;
  padding: 10px 20px 24px;
  flex: 1;
}
.wp-body h4 {
  margin: 16px 0 8px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--blue-ink);
  font-weight: 700;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 4px;
}
.wp-body h4:first-child { margin-top: 6px; }
.wp-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
  margin-top: 6px;
}
.wp-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 14px;
  min-width: 48px;
  height: 36px;
  background: var(--paper-3);
  border: 1px solid var(--rule);
  color: var(--ink-2);
  border-radius: 8px;
  cursor: pointer;
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  font-size: 12px;
  transition: all .15s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.wp-item:hover {
  background: rgba(91, 156, 246, 0.16);
  border-color: var(--blue-ink);
  color: var(--ink);
  transform: translateY(-1px);
}
.wp-item:active { transform: translateY(0) scale(0.97); }
.wp-item .wp-label {
  font-weight: 600;
  font-size: 12px;
}
.wp-item.is-used {
  border-color: var(--blue-ink);
  background: rgba(91, 156, 246, 0.12);
}
.wp-badge {
  position: absolute;
  top: -6px; right: -6px;
  background: var(--blue-ink);
  padding: 1px 6px;
  border-radius: 10px;
  font-size: 9px;
  font-weight: 700;
  color: var(--paper-deep);
  font-family: "JetBrains Mono", monospace;
  line-height: 1.4;
}
.wp-item.is-dup {
  opacity: .35;
  cursor: not-allowed;
}
.wp-item.is-current-source {
  border-color: var(--amber-ink);
  color: var(--amber-ink);
  background: rgba(251, 191, 36, 0.12);
}
.comp-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.comp-item {
  flex: 0 1 auto;
  min-width: 120px;
  height: 38px;
  border-radius: 8px;
  justify-content: center;
  padding: 0 14px;
}
.wp-confirm-box {
  background: var(--paper-3);
  border: 1px dashed var(--rule-bold);
  border-radius: 12px;
  padding: 24px;
  margin-top: 14px;
  text-align: center;
}
.wp-confirm-text {
  font-size: 15px;
  color: var(--ink);
  margin-bottom: 20px;
  line-height: 1.6;
}
.wp-confirm-text b {
  color: var(--ink);
  font-weight: 700;
  border-bottom: 2px solid var(--blue-ink);
  padding-bottom: 2px;
}
.wp-confirm-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.wp-btn-yes, .wp-btn-no {
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 12px;
  cursor: pointer;
  border: 1px solid var(--rule-bold);
  transition: all .15s;
  letter-spacing: .3px;
}
.wp-btn-yes {
  background: var(--green-ink);
  color: var(--paper-deep);
  border-color: var(--green-ink);
}
.wp-btn-yes:hover {
  background: #10b981;
}
.wp-btn-no {
  background: var(--paper-2);
  color: var(--ink-2);
}
.wp-btn-no:hover {
  background: var(--paper-3);
  color: var(--ink);
}

/* ========== Empty state ========== */
.empty-state {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 36px 48px;
  background: rgba(19, 27, 46, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px dashed var(--rule-bold);
  border-radius: 16px;
  text-align: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity .3s ease;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}
.empty-state.visible { opacity: 1; }
.empty-state .es-icon {
  font-size: 44px;
  color: var(--blue-ink);
  line-height: 1;
  margin-bottom: 4px;
  filter: drop-shadow(0 0 12px rgba(56, 189, 248, 0.4));
}
.empty-state .es-title {
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #fff;
}
.empty-state .es-hint {
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: .2px;
}

/* ========== Code panel ========== */
.code-panel {
  position: absolute;
  inset: 0;
  background: #090d16;
  z-index: 90;
  display: none;
  flex-direction: column;
}
.code-panel.active { display: flex; }
.cp-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--rule-bold);
  background: rgba(19, 27, 46, 0.95);
  backdrop-filter: blur(12px);
}
.cp-title {
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .5px;
}
.cp-toggle-palette-btn {
  display: none;
}
.cp-hint {
  font-size: 11.5px;
  color: var(--ink-3);
}
.cp-clear-btn {
  margin-left: auto;
  padding: 6px 12px;
  background: rgba(244, 63, 94, 0.12);
  border: 1px solid rgba(244, 63, 94, 0.35);
  color: #fb7185;
  border-radius: 8px;
  cursor: pointer;
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 11.5px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .15s ease;
}
.cp-clear-btn:hover {
  background: var(--red-ink);
  color: #fff;
  border-color: var(--red-ink);
  transform: translateY(-1px);
}
.cp-close {
  width: 32px; height: 32px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--rule);
  color: var(--ink-2);
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all .15s;
}
.cp-close:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}
.cp-body {
  flex: 1;
  display: flex;
  overflow: hidden;
  background: #090d16;
}

/* Palette blok */
.cp-palette {
  width: 250px;
  padding: 16px 14px;
  border-right: 1px solid var(--rule-bold);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(19, 27, 46, 0.7);
}
.cpp-group-head {
  margin: 16px 0 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--rule);
}
.cpp-group-head:first-child { margin-top: 0; }
.cpp-label {
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--blue-ink);
  letter-spacing: 1.2px;
  font-weight: 700;
}
.cpp-group-hint {
  font-size: 10px;
  color: var(--ink-4);
  font-style: italic;
  margin-top: 1px;
}
.cpp-block {
  padding: 8px 10px;
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--rule);
  border-radius: 8px;
  cursor: grab;
  font-family: "JetBrains Mono", monospace;
  font-size: 11.5px;
  color: var(--ink-2);
  transition: all .15s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  -webkit-user-drag: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  letter-spacing: .2px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
}
.cpp-block-title {
  width: 100%;
  line-height: 1.35;
  color: #fff;
  word-break: break-word;
}
.cpp-block:hover {
  border-color: var(--blue-ink);
  background: rgba(56, 189, 248, 0.12);
  color: #fff;
  transform: translateX(2px);
}
.cpp-block:active { cursor: grabbing; transform: scale(0.98); }

.cpp-badge {
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 9px;
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 600;
  letter-spacing: 0.3px;
  white-space: nowrap;
  display: inline-block;
  align-self: flex-start;
}
.cpp-badge.both {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}
.cpp-badge.setup {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fbbf24;
}

/* Editor */
.cp-editor {
  flex: 1;
  padding: 24px 30px;
  overflow-y: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  background: #0b0f19;
}
.cp-section {
  margin-bottom: 24px;
  background: rgba(19, 27, 46, 0.6);
  border: 1px solid var(--rule-bold);
  border-radius: 12px;
  padding: 10px;
  transition: all .15s ease;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}
.cp-section.drag-over {
  border-color: var(--blue-ink);
  background: rgba(56, 189, 248, 0.08);
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.2);
}
.cp-section-head,
.cp-section-foot {
  font-family: "JetBrains Mono", monospace;
  color: var(--blue-ink);
  font-weight: 700;
  font-size: 13px;
  padding: 6px 12px;
  letter-spacing: .3px;
}
.cp-lines {
  min-height: 56px;
  padding: 6px;
  border-radius: 8px;
  background: rgba(11, 15, 25, 0.6);
  border: 1px dashed var(--rule);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cp-lines:empty::before {
  content: "⬇ seret blok ke sini";
  color: var(--ink-4);
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 12px;
  display: block;
  text-align: center;
  padding: 18px;
  opacity: .8;
}
.cp-line {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 13px;
  line-height: 1.7;
  transition: all .12s;
  color: var(--ink);
  touch-action: manipulation;
  -webkit-user-drag: none;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
}
.cp-line:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.08);
}
.cp-line.drag-source { opacity: .35; }
.cp-line.executing {
  background: rgba(56, 189, 248, 0.15);
  box-shadow: inset 3px 0 0 var(--blue-ink);
  color: #fff;
}
.cp-line-handle {
  color: var(--ink-4);
  cursor: grab;
  font-size: 13px;
  user-select: none;
  padding: 2px 6px;
  border-radius: 4px;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  transition: all .12s;
}
.cp-line-handle:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}
.cp-line-handle:active {
  cursor: grabbing;
  background: var(--blue-ink);
  color: #0b0f19;
}
.cp-line-content { flex: 1; white-space: nowrap; }

/* Syntax tokens (inline editor) */
.cd-fn { color: #38bdf8; font-weight: 600; }
.cd-comma { color: var(--ink-4); }
.cd-paren { color: var(--ink-3); }
.cd-kw { color: #f43f5e; font-weight: 600; }
.cd-const {
  color: #fbbf24;
  font-weight: 600;
  font-family: "JetBrains Mono", monospace;
}

/* Inputs */
.cd-input {
  background: var(--paper-3);
  border: 1px solid var(--rule-bold);
  color: var(--ink);
  border-radius: 6px;
  padding: 2px 8px;
  font-family: inherit;
  font-size: 12px;
  text-align: center;
  width: 48px;
  transition: all .12s;
}
.cd-input:focus {
  outline: none;
  border-color: var(--blue-ink);
  background: var(--paper-2);
  box-shadow: 0 0 0 2px rgba(91, 156, 246, 0.25);
}
.cd-input:disabled {
  opacity: .35;
  cursor: not-allowed;
  background: rgba(255, 255, 255, 0.04);
}
.cd-input.is-variable {
  border-color: var(--blue-ink);
  background: rgba(91, 156, 246, 0.15);
  color: var(--blue-ink);
  font-weight: 600;
}
.cd-input.is-variable:focus {
  box-shadow: 0 0 0 2px rgba(91, 156, 246, 0.35);
}
.cd-input.is-unknown {
  border-color: var(--red-ink);
  background: rgba(248, 113, 113, 0.15);
  color: var(--red-ink);
}
.cd-input.is-unknown:focus {
  box-shadow: 0 0 0 2px rgba(248, 113, 113, 0.35);
}
.cd-select {
  background: var(--paper-3);
  border: 1px solid var(--rule-bold);
  color: var(--ink);
  border-radius: 6px;
  padding: 2px 6px;
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
}
.cd-select:focus {
  outline: none;
  border-color: var(--blue-ink);
  box-shadow: 0 0 0 2px rgba(91, 156, 246, 0.25);
}
.cp-line-del {
  background: transparent;
  border: 0;
  color: var(--red-ink);
  cursor: pointer;
  width: 22px; height: 22px;
  border-radius: 4px;
  font-size: 13px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: "JetBrains Mono", monospace;
  transition: all .12s;
}
.cp-line-del:hover {
  background: rgba(248, 113, 113, 0.18);
  color: #fff;
}

/* ========== Variables section ========== */
.cp-var-section {
  margin-bottom: 20px;
  background: var(--paper-2);
  border: 1px solid var(--rule-bold);
  border-radius: 8px;
  padding: 8px;
}
.cp-var-section .cp-var-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
}
.cp-var-title {
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  color: var(--ink-2);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
  flex: 1;
}
.cp-var-add-btn {
  background: var(--paper-3);
  border: 1px solid var(--rule-bold);
  color: var(--ink-2);
  padding: 3px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  font-weight: 600;
  transition: all .12s;
  letter-spacing: .3px;
}
.cp-var-add-btn:hover {
  background: var(--blue-ink);
  color: var(--paper-deep);
  border-color: var(--blue-ink);
}
.cp-var-lines {
  min-height: 42px;
  padding: 4px;
  border-radius: 6px;
  background: var(--paper-deep);
  border: 1px dashed var(--rule);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.cp-var-empty {
  padding: 10px;
  text-align: center;
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-style: italic;
  font-size: 11px;
  color: var(--ink-3);
  opacity: .8;
}
.cp-var-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 6px;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  color: var(--ink);
  transition: background .12s;
}
.cp-var-row:hover { background: var(--paper-3); }
.cp-var-row .cp-line-del { margin-left: auto; }
.cd-var-name,
.cd-var-value {
  background: var(--paper-3);
  border: 1px solid var(--rule-bold);
  border-radius: 6px;
  padding: 2px 6px;
  font-family: inherit;
  font-size: 12px;
  transition: border-color .12s, background .12s;
  color: var(--ink);
}
.cd-var-name {
  width: 90px;
}
.cd-var-name:focus {
  outline: none;
  border-color: var(--blue-ink);
  background: var(--paper-2);
  box-shadow: 0 0 0 2px rgba(91, 156, 246, 0.2);
}
.cd-var-value {
  width: 70px;
  text-align: center;
}
.cd-var-value:focus {
  outline: none;
  border-color: var(--blue-ink);
  background: var(--paper-2);
  box-shadow: 0 0 0 2px rgba(91, 156, 246, 0.2);
}

/* ========== If block ========== */
.cp-if-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 6px;
  margin: 2px 0;
  border-radius: 6px;
  background: var(--paper-deep);
  border-left: 2px solid var(--blue-ink);
}
.cp-if-content {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  white-space: normal;
}
.cp-if-foot {
  padding: 2px 10px;
  color: var(--blue-ink);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .5px;
  opacity: .9;
}
.cp-children {
  margin-left: 18px;
  min-height: 40px;
  padding: 4px;
  border-radius: 6px;
  background: var(--paper-2);
  border-left: 2px dashed var(--rule-bold);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.cp-children:empty::before {
  content: "drop blok di sini";
  color: var(--ink-4);
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 11px;
  font-style: italic;
  text-align: center;
  padding: 10px;
  display: block;
}
.cp-lines.drag-over {
  outline: 2px dashed var(--blue-ink);
  outline-offset: 2px;
  background: var(--paper-3);
}

/* Else branch */
.cp-if-else-header {
  display: flex;
  align-items: center;
  padding: 2px 0 2px 28px;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  color: var(--ink);
  gap: 4px;
  margin-top: 2px;
}
.cp-if-else-content {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.cp-if-else-header .cp-line-del { margin-left: auto; }
.cp-if-elseif-header {
  border-top: 1px dashed var(--rule);
  padding-top: 4px;
}
.cp-else-children {
  border-left: 2px solid var(--amber-ink);
  margin-left: 30px;
  padding-left: 6px;
}
.cp-elseif-children {
  border-left: 2px solid var(--blue-ink);
  margin-left: 30px;
  padding-left: 6px;
}
.cp-for-block { border-left-color: var(--blue-ink); }
.cp-while-block { border-left-color: var(--violet); }
.cp-switch-block { border-left-color: #f472b6; }
.math-assign-op {
  min-width: 44px;
  font-weight: 700;
  color: var(--amber-ink);
}
.cp-add-else {
  margin-left: 10px;
  padding: 1px 8px;
  font-size: 10.5px;
  font-family: "JetBrains Mono", monospace;
  background: var(--paper-3);
  border: 1px dashed var(--rule-bold);
  color: var(--ink-2);
  border-radius: 4px;
  cursor: pointer;
  transition: all .15s;
  letter-spacing: .3px;
}
.cp-add-else:hover {
  background: var(--blue-ink);
  border-color: var(--blue-ink);
  color: var(--paper-deep);
  border-style: solid;
}

/* ========== Condition builder ========== */
.cond-container {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 4px;
  border-radius: 4px;
  transition: background .12s, outline-color .12s;
  outline: 1px dashed transparent;
}
.cond-container:empty::before {
  content: "drop kondisi";
  color: var(--ink-4);
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 11px;
  font-style: italic;
  padding: 0 6px;
}
.cond-slot.cond-empty {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 90px;
  height: 24px;
  padding: 0 8px;
  border: 1px dashed var(--rule-bold);
  border-radius: 4px;
  color: var(--ink-3);
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 11px;
  font-style: italic;
  background: var(--paper-deep);
  cursor: pointer;
  transition: all .12s;
}
.cond-slot.cond-empty:hover {
  background: var(--paper-3);
  border-color: var(--blue-ink);
  color: var(--ink);
  border-style: solid;
}
.cond-slot.cond-add {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 4px;
  border: 1px dashed var(--rule-bold);
  border-radius: 4px;
  color: var(--ink-3);
  font-size: 12px;
  font-weight: 700;
  background: var(--paper-deep);
  cursor: pointer;
  transition: all .12s;
}
.cond-slot.cond-add:hover {
  background: var(--blue-ink);
  border-color: var(--blue-ink);
  color: var(--paper-deep);
  border-style: solid;
}
.cond-comparison {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 1px 2px;
  border-radius: 4px;
  border: 1px solid transparent;
  transition: border-color .12s, background .12s;
}
.cond-logical {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 1px 2px;
  border-radius: 4px;
  border: 1px solid transparent;
  transition: border-color .12s, background .12s;
  flex-wrap: wrap;
}
.cond-paren {
  color: var(--ink-3);
  font-weight: 600;
  margin: 0 2px;
  pointer-events: none;
}
.cond-op-sym {
  color: var(--red-ink);
  font-weight: 700;
  font-size: 12px;
  padding: 0 3px;
  user-select: none;
  pointer-events: none;
}
.cond-operand {
  background: var(--paper-3);
  border: 1px solid var(--rule-bold);
  color: var(--ink);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  text-align: center;
  width: 56px;
  transition: border-color .12s, background .12s;
}
.cond-operand:focus {
  outline: none;
  border-color: var(--blue-ink);
  background: var(--paper-2);
  box-shadow: 0 0 0 2px rgba(91, 156, 246, 0.2);
}
.cond-operand.is-variable {
  border-color: var(--blue-ink);
  background: rgba(91, 156, 246, 0.15);
  color: var(--blue-ink);
  font-weight: 600;
}
.cond-operand.is-unknown {
  border-color: var(--red-ink);
  background: rgba(248, 113, 113, 0.15);
  color: var(--red-ink);
}
.cond-op {
  background: var(--paper-3);
  border: 1px solid var(--rule-bold);
  color: var(--ink);
  border-radius: 4px;
  padding: 1px 3px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  cursor: pointer;
}
.cond-logic {
  background: var(--paper-3);
  border: 1px solid var(--red-ink);
  color: var(--red-ink);
  border-radius: 4px;
  padding: 1px 3px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  min-width: 42px;
}
.cond-del {
  background: transparent;
  border: 0;
  color: var(--red-ink);
  cursor: pointer;
  width: 20px; height: 20px;
  border-radius: 4px;
  font-size: 12px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-left: 2px;
  font-family: "JetBrains Mono", monospace;
  transition: all .12s;
}
.cond-del:hover {
  background: rgba(248, 113, 113, 0.18);
  color: #fff;
}
.cond-drop-over {
  outline: 2px dashed var(--blue-ink) !important;
  outline-offset: 1px;
  background: var(--paper-3) !important;
}

/* ========== Math block ========== */
.math-target {
  font-family: "JetBrains Mono", monospace;
}
.math-expr {
  font-family: "JetBrains Mono", monospace;
  min-width: 140px;
}

/* ========== Drag ghost & drop indicator ========== */
.drag-ghost {
  pointer-events: none !important;
  opacity: .95 !important;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.45) !important;
  transform: rotate(-1.5deg) !important;
  border: 1px solid var(--blue-ink) !important;
  border-radius: 8px !important;
  background: var(--paper-2) !important;
  color: var(--ink) !important;
  cursor: grabbing !important;
}
.drag-ghost.cpp-block {
  padding: 8px 12px !important;
  font-size: 11.5px !important;
  font-family: "JetBrains Mono", monospace !important;
}
.drag-ghost.cp-line {
  background: var(--paper-2) !important;
  padding: 4px 8px !important;
}
.drag-ghost.cp-if-block {
  background: var(--paper-2) !important;
  padding: 6px !important;
  border: 1px solid var(--blue-ink) !important;
  border-radius: 6px !important;
}
/* Visual Feedback saat siap dihapus (Drag ke luar / ke palette) */
.drag-ghost.delete-ready {
  border-color: var(--red-ink) !important;
  background: rgba(248, 113, 113, 0.22) !important;
  color: #fff !important;
  box-shadow: 0 4px 16px rgba(248, 113, 113, 0.35) !important;
  opacity: 0.9 !important;
  transform: rotate(-3deg) scale(0.96) !important;
}
.drag-ghost.delete-ready::after {
  content: " 🗑️ Lepas untuk hapus";
  font-size: 11px;
  font-weight: 700;
  color: var(--red-ink);
  margin-left: 8px;
}
.cp-palette.trash-hover {
  outline: 2px dashed var(--red-ink) !important;
  outline-offset: -3px;
  background: rgba(248, 113, 113, 0.08) !important;
}

.cp-if-block.drag-source { opacity: .35; }
.drop-indicator {
  position: fixed;
  height: 2px;
  background: var(--blue-ink);
  z-index: 9998;
  pointer-events: none;
  border-radius: 1px;
  display: none;
}

/* ========== Code Preview (right pane) ========== */
.cp-preview {
  width: 380px;
  flex-shrink: 0;
  padding: 16px 20px;
  border-left: 1px solid var(--rule-bold);
  overflow-y: auto;
  background: var(--paper-deep);
  font-family: "JetBrains Mono", monospace;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink-2);
}
.cp-preview-head {
  padding: 4px 0 12px;
  margin: 0 0 14px;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 700;
  border-bottom: 1px solid var(--rule-bold);
  display: flex;
  align-items: center;
  gap: 8px;
}
.cp-preview-head .cpp-hint {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-4);
  font-weight: 400;
}
.cp-preview-code {
  margin: 0;
  font: inherit;
  color: var(--ink-2);
  white-space: pre;
  tab-size: 2;
}

/* Syntax highlighting — Nordic Technical Palette */
.hl-kw  { color: var(--red-ink); font-weight: 600; }
.hl-fn  { color: var(--blue-ink); font-weight: 600; }
.hl-var { color: var(--ink); }
.hl-num { color: var(--amber-ink); }
.hl-str { color: var(--green-ink); }
.hl-op  { color: var(--ink-3); }
.hl-empty { color: var(--ink-4); font-style: italic; }

/* ========== Serial Monitor (Technical Terminal) ========== */
#serialToggleBtn {
  position: fixed;
  right: 20px; bottom: 20px;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--paper-2);
  border: 1px solid var(--rule-bold);
  color: var(--blue-ink);
  font-size: 18px;
  cursor: pointer;
  z-index: 50;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4);
  transition: all .2s cubic-bezier(0.16, 1, 0.3, 1);
}
#serialToggleBtn:hover {
  background: var(--blue-ink);
  border-color: var(--blue-ink);
  color: var(--paper-deep);
  transform: translateY(-2px);
}
body.serial-open #serialToggleBtn { bottom: 245px; }

#serialMonitor {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  height: 230px;
  background: var(--paper-2);
  border-top: 1px solid var(--rule-bold);
  box-shadow: 0 -12px 30px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  z-index: 40;
  transform: translateY(100%);
  transition: transform .25s cubic-bezier(0.16, 1, 0.3, 1);
}
#serialMonitor.visible { transform: translateY(0); }
.sm-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 18px;
  background: var(--paper-3);
  border-bottom: 1px solid var(--rule);
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  font-size: 12px;
  color: var(--ink);
  flex-shrink: 0;
}
.sm-status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--ink-4);
  flex-shrink: 0;
  border: 1px solid var(--rule-bold);
  transition: all .2s;
}
.sm-status-dot.active {
  background: var(--green-ink);
  border-color: var(--green-ink);
}
.sm-title {
  font-weight: 700;
  color: var(--ink);
  letter-spacing: .5px;
}
.sm-baud, .sm-lines {
  padding: 2px 8px;
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  color: var(--ink-3);
  border-radius: 6px;
  font: 600 11px/1.4 "JetBrains Mono", monospace;
}
.sm-lines {
  background: transparent;
  border-style: dashed;
}
.sm-spacer { flex: 1; }
.sm-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  color: var(--ink-3);
  user-select: none;
  font-size: 11.5px;
}
.sm-toggle input {
  accent-color: var(--blue-ink);
  cursor: pointer;
}
.sm-btn {
  padding: 4px 12px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  color: var(--ink-2);
  border-radius: 6px;
  font: 600 11px/1.4 "JetBrains Mono", monospace;
  cursor: pointer;
  transition: all .15s;
  letter-spacing: .3px;
}
.sm-btn:hover {
  background: var(--paper-deep);
  color: var(--ink);
}
.sm-close {
  width: 28px;
  padding: 4px 0;
  text-align: center;
}
.sm-output {
  flex: 1;
  overflow-y: auto;
  padding: 12px 18px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12.5px;
  color: var(--green-ink);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--paper-deep);
}
.sm-empty {
  color: var(--ink-4);
  font-style: italic;
}

/* ========== Zoom UI (Floating Quick Actions) ========== */
#zoomBadge {
  position: absolute;
  top: 16px; left: 50%;
  transform: translateX(-50%);
  padding: 4px 12px;
  background: var(--paper-2);
  border: 1px solid var(--rule-bold);
  border-radius: 20px;
  color: var(--blue-ink);
  font: 700 11.5px/1 "JetBrains Mono", monospace;
  letter-spacing: .5px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s;
  z-index: 6;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
#zoomBadge.visible { opacity: 1; }
#zoomPanel {
  position: absolute;
  top: 58px; right: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 6;
}
#zoomPanel button {
  width: 36px; height: 36px;
  background: var(--paper-2);
  border: 1px solid var(--rule-bold);
  color: var(--ink-2);
  border-radius: 10px;
  font: 700 15px/1 "JetBrains Mono", monospace;
  cursor: pointer;
  transition: all .15s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}
#zoomPanel button:hover {
  background: var(--blue-ink);
  border-color: var(--blue-ink);
  color: var(--paper-deep);
  transform: scale(1.05);
}

/* ========== Responsive ============ */
@media (max-width: 1100px) {
  .cp-preview { width: 300px; font-size: 12px; }
}
@media (max-width: 820px) {
  .cp-preview { display: none; }
}
@media (max-width: 720px) {
  body {
    padding: 0;
    user-select: none;
    -webkit-user-select: none;
  }
  .stage {
    border-radius: 0;
    border: none;
  }

  /* Compact top bar in mobile */
  .watermark { display: none; }
  .sim-title {
    top: 8px; left: 8px;
    padding: 4px 8px;
    font-size: 11px;
    border-radius: 8px;
  }
  .sim-title .num { width: 18px; height: 18px; font-size: 9px; }

  /* Zoom controls: top-right corner compact */
  #zoomPanel {
    top: 8px; right: 8px;
    flex-direction: row;
    gap: 4px;
  }
  #zoomPanel button {
    width: 32px; height: 32px;
    font-size: 13px;
    border-radius: 8px;
  }
  #zoomBadge {
    top: 8px;
    font-size: 10px;
    padding: 2px 8px;
  }

  /* Mobile Trigger Button for Component Palette */
  .mobile-pal-trigger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    position: absolute;
    top: 8px;
    left: 140px;
    padding: 6px 12px;
    background: var(--paper-2);
    border: 1px solid var(--rule-bold);
    color: var(--blue-ink);
    border-radius: 8px;
    font-size: 11.5px;
    font-weight: 700;
    cursor: pointer;
    z-index: 25;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }
  .mobile-pal-trigger.active {
    background: var(--blue-ink);
    color: var(--paper-deep);
  }

  /* ========== Component Sidebar (Slide-in Drawer) ========== */
  .palette {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: min(240px, 75vw);
    min-width: 0;
    max-width: none;
    z-index: 120;
    display: flex;
    flex-direction: column;
    padding: 14px 12px;
    gap: 8px;
    background: var(--paper-2);
    border: none;
    border-right: 1px solid var(--rule-bold);
    border-radius: 0 16px 16px 0;
    box-shadow: 10px 0 35px rgba(0, 0, 0, 0.65);
    transform: translateX(0);
    transition: transform .28s cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
    overflow-x: hidden;
  }
  .palette.collapsed {
    transform: translateX(-105%);
    box-shadow: none;
  }
  .pal-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--rule);
    font-size: 11px;
    letter-spacing: 1px;
    color: var(--ink-2);
  }
  .pal-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    font-size: 12px;
    border-radius: 6px;
    background: var(--paper-3);
    color: var(--blue-ink);
  }
  .pal-item {
    width: 100%;
    padding: 10px 12px;
    font-size: 12px;
    border-radius: 8px;
  }
  .pal-hint {
    display: block;
    font-size: 10.5px;
    color: var(--ink-4);
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px dashed var(--rule);
  }

  /* ========== Toolbar: Centered Bottom Dock ========== */
  #simToolbar {
    bottom: 8px;
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    width: calc(100% - 16px);
    max-width: 480px;
    padding: 4px 8px 6px;
    border-radius: 12px;
    gap: 3px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.5);
    z-index: 30;
  }
  #simToolbar.collapsed {
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) translateY(0);
    padding: 3px 8px;
  }
  #simToolbar.autohide:not(:hover):not(:focus-within) {
    transform: translateX(-50%) translateY(65%);
    opacity: 0.45;
  }
  .tb-toggle-btn {
    padding: 2px 20px !important;
    font-size: 10px !important;
  }
  .tb-content { gap: 4px; }
  #simToolbar .tb-row {
    gap: 4px;
    justify-content: space-between;
    width: 100%;
  }
  #simToolbar button {
    flex: 1 1 auto;
    padding: 6px 4px;
    font-size: 11px;
    min-width: 0;
    border-radius: 6px;
  }
  #simToolbar #netStatus {
    display: none;
  }
  #simToolbar .fp-list {
    max-height: 24vh;
    min-width: 100%;
  }

  /* Wire Picker modal on mobile */
  #wirePicker {
    width: 96vw;
    max-height: 80vh;
    bottom: 10px;
    border-radius: 14px;
  }
  .wp-head { padding: 10px 14px; }
  .wp-body { padding: 10px 14px 18px; }
  .wp-item {
    min-width: 44px;
    height: 40px;
    font-size: 13px;
  }

  /* ========== Code Panel on Mobile: Fullscreen with Slide-in Blocks Sidebar ========== */
  .code-panel {
    position: fixed;
    inset: 0;
    height: 100dvh;
    border: none;
    border-radius: 0;
    box-shadow: none;
    z-index: 100;
  }
  .cp-header {
    padding: 8px 12px;
    gap: 8px;
    border-radius: 0;
    flex-wrap: nowrap;
  }
  .cp-toggle-palette-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--paper-3);
    border: 1px solid var(--rule-bold);
    color: var(--blue-ink);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    flex-shrink: 0;
  }
  .cp-toggle-palette-btn.active {
    background: var(--blue-ink);
    color: var(--paper-deep);
  }
  .cp-title {
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .cp-hint { display: none; }
  .cp-clear-btn {
    font-size: 10.5px;
    padding: 4px 8px;
    margin-left: auto;
  }
  .cp-close {
    width: 28px; height: 28px;
    font-size: 12px;
  }
  .cp-body {
    position: relative;
    flex-direction: row;
    height: calc(100% - 46px);
    overflow: hidden;
  }
  /* Sidebar blok kode geser (bisa disembunyikan / dibuka) */
  .cp-palette {
    position: absolute;
    top: 0; bottom: 0; left: 0;
    width: min(220px, 68vw);
    min-width: 0;
    max-height: 100%;
    padding: 10px 8px;
    border-right: 1px solid var(--rule-bold);
    border-bottom: none;
    flex-direction: column;
    flex-wrap: nowrap;
    overflow-y: auto;
    overflow-x: hidden;
    gap: 6px;
    background: var(--paper-2);
    z-index: 5;
    box-shadow: 8px 0 24px rgba(0, 0, 0, 0.5);
    transform: translateX(0);
    transition: transform .25s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .cp-palette.collapsed {
    transform: translateX(-100%);
    box-shadow: none;
  }
  .cpp-group-head {
    display: block;
    margin: 8px 0 4px;
    padding-bottom: 2px;
  }
  .cpp-label {
    font-size: 10px;
    letter-spacing: 0.5px;
  }
  .cpp-group-hint { display: none; }
  .cpp-block {
    font-size: 11px;
    padding: 8px 10px;
    width: 100%;
    border-radius: 6px;
  }
  .cpp-badge { font-size: 8.5px; padding: 1px 5px; }

  /* Area editor kode: mengisi ruang penuh */
  .cp-editor {
    flex: 1;
    width: 100%;
    padding: 12px 10px 24px;
    font-size: 11.5px;
    overflow-y: auto;
  }
  .cp-section {
    margin-bottom: 12px;
    padding: 8px;
    border-radius: 8px;
  }
  .cp-section-head, .cp-section-foot {
    font-size: 12px;
    padding: 4px 8px;
  }
  .cp-line {
    padding: 6px 8px;
    font-size: 11.5px;
    flex-wrap: wrap;
    gap: 5px;
  }
  .cp-line-handle {
    padding: 3px 6px;
    font-size: 12px;
  }
  .cd-input {
    width: 38px;
    font-size: 11px;
    padding: 2px 4px;
  }
  .cd-select {
    font-size: 11px;
    padding: 2px 4px;
  }

  /* Serial Monitor on mobile */
  #serialMonitor {
    height: 190px;
  }
  #serialToggleBtn {
    right: 8px;
    bottom: 90px;
    width: 38px; height: 38px;
    font-size: 16px;
    border-radius: 10px;
  }
  body.serial-open #serialToggleBtn {
    bottom: 200px;
  }
}

/* ========== Button Simulation Overlay ========== */
.btn-overlay {
  position: fixed;
  right: 18px;
  bottom: 80px;
  z-index: 45;
  min-width: 190px;
  max-width: 240px;
  max-height: 60vh;
  overflow-y: auto;
  padding: 12px 14px 10px;
  background: var(--paper-2);
  border: 1px solid var(--rule-bold);
  border-radius: 14px;
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.45);
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", sans-serif;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: bo-pop .25s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes bo-pop {
  from { transform: translateY(12px) scale(0.94); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}
.bo-head {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--amber-ink);
  font-weight: 700;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}
.bo-item { display: flex; flex-direction: column; gap: 5px; }
.bo-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.5px;
  font-weight: 600;
}
.bo-press {
  position: relative;
  padding: 14px 18px;
  background: var(--paper-3);
  border: 2px solid var(--rule-bold);
  color: var(--ink);
  border-radius: 10px;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 1.2px;
  cursor: pointer;
  transition: all .1s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
}
.bo-press:hover {
  background: var(--paper-deep);
  border-color: var(--amber-ink);
  color: var(--amber-ink);
  transform: translateY(-1px);
}
.bo-press.is-pressed {
  background: rgba(52, 211, 153, 0.16);
  border-color: var(--green-ink);
  color: var(--green-ink);
  transform: translateY(1px) scale(0.98);
}
.bo-hint {
  font-size: 10px;
  color: var(--ink-4);
  text-align: center;
  letter-spacing: 0.3px;
  padding-top: 4px;
  border-top: 1px dashed var(--rule);
}
body.serial-open .btn-overlay { bottom: 300px; }

@media (max-width: 720px) {
  .btn-overlay {
    right: 8px; bottom: 70px;
    min-width: 150px; max-width: 190px;
    padding: 10px;
    max-height: 45vh;
  }
  .bo-press { padding: 12px 14px; font-size: 11.5px; letter-spacing: 1px; }
  body.serial-open .btn-overlay { bottom: 240px; }
}

/* ========== Palette Item Disabled State (Arduino Limit) ========== */
.pal-item:disabled,
.pal-item.is-disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}
.pal-item:disabled:hover,
.pal-item.is-disabled:hover {
  background: var(--paper-3);
  border-color: var(--rule);
  color: var(--ink-2);
  transform: none;
  box-shadow: none;
}

body.sim-running .instance { cursor: default; }

/* ========== Button Lock (multi-tombol) ========== */
.bo-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}
.bo-lock {
  width: 26px;
  height: 22px;
  padding: 0;
  border: 1px solid var(--rule);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink-3);
  border-radius: 5px;
  cursor: pointer;
  font-size: 12px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all .15s;
}
.bo-lock:hover {
  background: rgba(251, 146, 60, 0.15);
  border-color: var(--amber-ink);
}
.bo-lock.is-locked {
  background: var(--amber-ink);
  border-color: var(--amber-ink);
  color: #0b0f19;
  box-shadow: 0 0 10px rgba(251, 191, 36, 0.5);
}

/* ========== Serial Block Warning (mode mismatch) ========== */
.cp-line.mode-mismatch,
.cp-if-header.mode-mismatch {
  background: rgba(244, 63, 94, 0.08) !important;
  border-color: rgba(244, 63, 94, 0.35) !important;
}
.cp-line.mode-mismatch::after {
  content: " ⚠";
  color: var(--red-ink);
  font-weight: 700;
}

/* ============================================================
   MOBILE NAVIGATION — FAB, Selection Highlight, Icon Toolbar
   ============================================================ */

/* FAB default: tidak tampil. Muncul hanya di mobile + selected. */
.fab { display: none; }

/* Highlight komponen yang terpilih (tap) */
.instance.pg-selected .instance-hit {
  stroke: var(--blue-ink);
  stroke-width: 2.5;
  fill: rgba(91, 156, 246, 0.08);
}

/* Jangan tampilkan FAB saat simulasi berjalan */
body.sim-running .fab { display: none !important; }

@media (max-width: 720px), (pointer: coarse) {

  /* ============ FAB ============ */
  .fab:not([hidden]) {
    display: flex;
    position: fixed;
    gap: 8px;
    padding: 8px;
    background: rgba(35, 40, 52, 0.96);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--rule-bold);
    border-radius: 18px;
    z-index: 35;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    left: 50%;
    bottom: 150px;
    transform: translateX(-50%);
    transition: top .12s ease, left .12s ease;
  }
  .fab[hidden] { display: none !important; }

  .fab-btn {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    border: 1px solid var(--rule);
    background: var(--paper-3);
    color: #fff;
    font-size: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition: transform .1s;
  }
  .fab-btn:active { transform: scale(.92); }
  .fab-btn.fab-danger {
    background: rgba(220, 50, 50, 0.35);
    border-color: rgba(220, 50, 50, 0.55);
  }
  .fab-btn.fab-danger:active { background: rgba(220, 50, 50, 0.6); }

  /* ============ Toolbar: icon-only (hemat ruang) ============ */
  #simToolbar .tb-row button {
    font-size: 0;                 /* sembunyikan teks */
    min-width: 44px;
    min-height: 44px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  #simToolbar .tb-row button::before {
    content: attr(data-icon);
    font-size: 18px;
    line-height: 1;
    display: inline-block;
  }
  #simToolbar .tb-row button:not([data-icon])::before {
    content: "•";
    font-size: 14px;
  }
}

/* ============================================================
   MOBILE — long-press grab feedback
   ============================================================ */
.instance.pg-grabbing {
  filter: drop-shadow(0 0 12px rgba(91, 156, 246, 0.9))
          drop-shadow(0 0 24px rgba(91, 156, 246, 0.5));
}