/* ── Lab Coding Blok: Logika Dasar ── */

:root {
  --primary: #1e3a5f;
  --accent: #3b82f6;
  --orange: #ea580c;
  --yellow: #b45309;
  --green: #059669;
  --purple: #7c3aed;
  --bg: #f0f4f8;
  --surface: #ffffff;
  --border: #d1d5db;
  --text: #111827;
  --muted: #6b7280;
  --radius: 12px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
}

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

body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.5;
}

/* ── SCREENS ── */
.screen {
  display: none;
}
.screen.active {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ══════════════════════════
   HOME SCREEN
══════════════════════════ */
#screen-home {
  background: var(--bg);
}

.home-header {
  background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
  color: #fff;
  text-align: center;
  padding: 48px 24px 40px;
}
.home-header .logo {
  font-size: 56px;
  margin-bottom: 12px;
}
.home-header h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.home-header .subtitle {
  font-size: 18px;
  opacity: 0.85;
  margin-top: 4px;
}
.home-header .tagline {
  font-size: 14px;
  opacity: 0.7;
  margin-top: 8px;
}

.levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  padding: 32px 24px;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
}

.level-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  cursor: pointer;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  border: 2px solid transparent;
}
.level-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.level-card.locked {
  opacity: 0.55;
  cursor: not-allowed;
}
.level-card.locked:hover {
  transform: none;
  box-shadow: var(--shadow);
}

.card-header {
  padding: 20px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 16px;
}
.card-emoji {
  font-size: 36px;
}
.card-header h3 {
  font-size: 15px;
  font-weight: 700;
}
.card-header .level-num {
  font-size: 12px;
  opacity: 0.8;
}

.card-body {
  padding: 16px 20px;
}
.concept-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #f3f4f6;
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 10px;
}
.card-body p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
}
.card-stars {
  color: #fbbf24;
  letter-spacing: 2px;
}

.home-footer {
  text-align: center;
  padding: 24px;
  color: var(--muted);
  font-size: 12px;
  margin-top: auto;
}

/* ══════════════════════════
   GAME SCREEN
══════════════════════════ */
#screen-game {
  background: var(--bg);
}

.game-header {
  background: var(--primary);
  color: #fff;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-back {
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: background 0.2s;
  white-space: nowrap;
}
.btn-back:hover {
  background: rgba(255, 255, 255, 0.25);
}

.level-info {
  flex: 1;
}
.level-title {
  font-weight: 700;
  font-size: 15px;
  display: block;
}
.level-concept {
  font-size: 12px;
  opacity: 0.75;
}

.game-stats {
  display: flex;
  gap: 10px;
}
.score-badge,
.hint-badge {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 13px;
}

/* Challenge tabs */
.challenge-tabs {
  display: flex;
  gap: 6px;
  padding: 10px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.tab-btn {
  padding: 6px 14px;
  border-radius: 20px;
  border: 2px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  transition: all 0.2s;
  white-space: nowrap;
}
.tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.tab-btn.done {
  border-color: var(--green);
  color: var(--green);
}
.tab-btn.done::after {
  content: " ✓";
}
.tab-btn.active.done {
  border-color: var(--green);
  color: #fff;
  background: var(--green);
}

/* Mission box */
.mission-box {
  background: #eff6ff;
  border-left: 4px solid var(--accent);
  padding: 12px 20px;
  font-size: 13px;
}
.mission-title {
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

/* Main game body */
.game-body {
  display: grid;
  grid-template-columns: 200px 1fr 1fr;
  gap: 0;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

/* PANELS */
.panel {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  overflow: hidden;
}
.panel:last-child {
  border-right: none;
}

.panel-title {
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

/* PALETTE */
.panel-palette {
  background: var(--surface);
}
.palette-blocks {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.palette-block {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.15s;
  user-select: none;
  font-size: 13px;
  font-weight: 600;
}
.palette-block:hover {
  filter: brightness(0.93);
  transform: scale(1.02);
}
.palette-block:active {
  transform: scale(0.97);
}
.palette-block[draggable] {
  cursor: grab;
}
.palette-block[draggable]:active {
  cursor: grabbing;
}
.palette-icon {
  font-size: 16px;
  flex-shrink: 0;
}

/* PROGRAM AREA */
.panel-program {
  background: #f9fafb;
}
.program-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.prog-block-start,
.prog-block-end {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 13px;
  background: #ecfdf5;
  color: #065f46;
  border: 2px solid #10b981;
  margin: 3px 0;
}

.user-blocks {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin: 3px 0;
}

/* ── DRAG AND DROP ── */
.drop-gap {
  height: 6px;
  border-radius: 4px;
  transition:
    height 0.15s,
    background 0.15s,
    border 0.15s;
  cursor: crosshair;
  position: relative;
}
.drop-gap.over {
  height: 32px;
  background: #dbeafe;
  border: 2px dashed #3b82f6;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.drop-gap.over::after {
  content: "+ Letakkan di sini";
  font-size: 11px;
  color: #2563eb;
  font-weight: 700;
}

.drag-handle {
  cursor: grab;
  color: rgba(0, 0, 0, 0.25);
  font-size: 14px;
  flex-shrink: 0;
  padding: 0 2px;
  user-select: none;
  letter-spacing: -2px;
}
.drag-handle:active {
  cursor: grabbing;
}

.block-dragging {
  opacity: 0.35;
  transform: scale(0.97);
  pointer-events: none;
}

/* Block in program */
.prog-block {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  border: 2px solid;
  position: relative;
  transition:
    background 0.15s,
    opacity 0.15s;
  cursor: default;
}
.prog-block[draggable="true"] {
  cursor: grab;
}
.prog-block[draggable="true"]:active {
  cursor: grabbing;
}

.prog-block-icon {
  font-size: 15px;
  flex-shrink: 0;
}
.prog-block-label {
  flex: 1;
}
.prog-block-param {
  width: 52px;
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.2);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  background: rgba(255, 255, 255, 0.7);
}
.prog-block-param-select {
  padding: 2px 4px;
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.2);
  font-size: 11px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.7);
  max-width: 120px;
}
.prog-block-del {
  background: rgba(0, 0, 0, 0.12);
  border: none;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: inherit;
  transition: background 0.15s;
  flex-shrink: 0;
}
.prog-block-del:hover {
  background: rgba(200, 0, 0, 0.25);
}

/* Container blocks (loop, if) */
.prog-container {
  border: 2px solid;
  border-radius: 10px;
  margin: 3px 0;
  overflow: hidden;
}
.prog-container-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  font-size: 13px;
  font-weight: 700;
  cursor: default;
}
.prog-container-body {
  padding: 4px 8px 4px 20px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.4);
  min-height: 36px;
}
.prog-else-label {
  font-size: 11px;
  font-weight: 700;
  color: #92400e;
  padding: 2px 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.prog-container-footer {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  color: rgba(0, 0, 0, 0.4);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* Add-inner button */
.btn-add-inner {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: rgba(255, 255, 255, 0.6);
  border: 1.5px dashed rgba(0, 0, 0, 0.2);
  border-radius: 7px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  transition: all 0.15s;
  margin: 2px 0;
}
.btn-add-inner:hover,
.btn-add-inner.active {
  background: #dbeafe;
  border-color: var(--accent);
  color: var(--accent);
}
.btn-add-inner.active::before {
  content: "✏️ ";
}

/* Program controls */
.program-controls {
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  background: var(--surface);
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  transition: all 0.15s;
}
.btn:active {
  transform: scale(0.96);
}
.btn-run {
  background: #059669;
  color: #fff;
}
.btn-run:hover {
  background: #047857;
}
.btn-run:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}
.btn-reset {
  background: #3b82f6;
  color: #fff;
}
.btn-reset:hover {
  background: #2563eb;
}
.btn-hint {
  background: #f59e0b;
  color: #fff;
}
.btn-hint:hover {
  background: #d97706;
}
.btn-clear {
  background: #ef4444;
  color: #fff;
}
.btn-clear:hover {
  background: #dc2626;
}

/* SIMULATION PANEL */
.panel-simulation {
  background: var(--surface);
}
.simulation-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Canvas */
.canvas-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  background: #f9fafb;
  overflow: hidden;
}
#game-canvas {
  border-radius: 8px;
  box-shadow: var(--shadow);
  max-width: 100%;
  max-height: 100%;
}

/* DOM simulation */
.dom-sim {
  padding: 16px;
  overflow-y: auto;
  display: none;
}
.dom-sim.active {
  display: block;
  flex: 1;
}

.canvas-wrap.hidden {
  display: none;
}

/* Cashier sim */
.cashier-receipt {
  background: #fffbeb;
  border: 2px solid #fde68a;
  border-radius: 10px;
  padding: 20px;
  max-width: 320px;
  margin: 0 auto;
  font-family: monospace;
}
.receipt-title {
  text-align: center;
  font-weight: 800;
  font-size: 16px;
  margin-bottom: 12px;
}
.receipt-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 14px;
}
.receipt-divider {
  border: none;
  border-top: 1px dashed #9ca3af;
  margin: 8px 0;
}
.receipt-result {
  text-align: center;
  font-size: 18px;
  font-weight: 800;
  padding: 12px;
  border-radius: 8px;
  margin-top: 12px;
}
.result-kembalian {
  background: #dcfce7;
  color: #166534;
}
.result-kurang {
  background: #fee2e2;
  color: #991b1b;
}
.result-stok-habis {
  background: #f3f4f6;
  color: #374151;
}
.result-pas {
  background: #dbeafe;
  color: #1e40af;
}

/* Traffic light sim */
.traffic-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 20px;
}
.traffic-pole {
  background: #374151;
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow);
}
.traffic-light {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #374151;
  transition: all 0.4s;
  border: 3px solid #1f2937;
}
.traffic-light.on-merah {
  background: #ef4444;
  box-shadow: 0 0 24px #ef4444;
}
.traffic-light.on-kuning {
  background: #fbbf24;
  box-shadow: 0 0 24px #fbbf24;
}
.traffic-light.on-hijau {
  background: #22c55e;
  box-shadow: 0 0 24px #22c55e;
}

.traffic-log {
  background: #f3f4f6;
  border-radius: 8px;
  padding: 12px;
  font-size: 13px;
  min-width: 180px;
}
.traffic-log h4 {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}
.traffic-seq {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.seq-wrap {
  display: flex;
  gap: 3px;
  flex-wrap: wrap;
  max-width: 220px;
}
.seq-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid #ccc;
  cursor: default;
}
.seq-dot.merah {
  background: #ef4444;
  border-color: #dc2626;
}
.seq-dot.kuning {
  background: #fbbf24;
  border-color: #d97706;
}
.seq-dot.hijau {
  background: #22c55e;
  border-color: #16a34a;
}

/* Chatbot sim */
.chatbot-window {
  max-width: 360px;
  margin: 0 auto;
  border: 2px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.chatbot-header {
  background: #7c3aed;
  color: #fff;
  padding: 12px 16px;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.chatbot-messages {
  background: #f9fafb;
  min-height: 200px;
  max-height: 320px;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.chat-msg {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  max-width: 90%;
  white-space: pre-line;
  animation: msgIn 0.25s ease;
}
@keyframes msgIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.chatbot-req {
  padding: 10px 12px;
  background: #eff6ff;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}
.req-item {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 2px 0;
}
.req-item.done {
  color: var(--green);
}
.req-item.done::before {
  content: "✅ ";
}
.req-item:not(.done)::before {
  content: "⬜ ";
}

/* Log */
.sim-log {
  border-top: 1px solid var(--border);
  max-height: 110px;
  overflow-y: auto;
  background: #1f2937;
  padding: 8px 12px;
}
.log-title {
  font-size: 10px;
  font-weight: 700;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.log-line {
  font-size: 11px;
  color: #d1d5db;
  font-family: monospace;
  padding: 1px 0;
  line-height: 1.5;
}
.log-line.success {
  color: #34d399;
}
.log-line.error {
  color: #f87171;
}

/* ── MODALS ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open {
  display: flex;
}

.modal-box {
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 32px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  animation: modalIn 0.25s ease;
}
@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-icon {
  font-size: 56px;
  margin-bottom: 12px;
}
.modal-box h2 {
  font-size: 22px;
  margin-bottom: 8px;
}
.modal-box p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 20px;
}

.modal-score {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  margin: 12px 0;
}
.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
  justify-content: center;
  padding: 12px;
  font-size: 15px;
}
.btn-primary:hover {
  background: #1d4ed8;
}
.btn-secondary {
  background: #f3f4f6;
  color: var(--text);
  width: 100%;
  justify-content: center;
}
.btn-secondary:hover {
  background: #e5e7eb;
}

/* Hint modal */
.hint-box {
  text-align: left;
  background: #fffbeb;
  border: 2px solid #fde68a;
  border-radius: 10px;
  padding: 16px;
  font-size: 14px;
  line-height: 1.7;
  margin: 12px 0 20px;
  color: #92400e;
}

/* Reflection */
.reflection-q {
  text-align: left;
  margin-bottom: 14px;
}
.reflection-q label {
  font-size: 13px;
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}
.reflection-q textarea {
  width: 100%;
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 14px;
  resize: vertical;
  font-family: inherit;
}

/* ── RESPONSIVE ── */
/* ══════════════════════════
   MOBILE PICKUP BAR
   Fixed at bottom when a block is "held"
══════════════════════════ */
.mobile-pickup-bar {
  display: none; /* shown via JS when pickup is active */
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #1e40af;
  color: #fff;
  padding: 13px 16px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  z-index: 200;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.25);
}
.mobile-pickup-bar.active {
  display: flex;
}
.mobile-pickup-cancel {
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

/* Block highlighted as "picked up" */
.block-picked {
  outline: 3px solid #3b82f6 !important;
  outline-offset: 2px;
  background: #eff6ff !important;
}

/* Drop zones during pickup mode */
.drop-gap.pickup-target {
  height: 44px !important;
  background: #dbeafe;
  border: 2px dashed #3b82f6;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 3px 0;
  transition: background 0.15s;
}
.drop-gap.pickup-target::after {
  content: "📍 Letakkan di sini";
  font-size: 12px;
  color: #1d4ed8;
  font-weight: 700;
  pointer-events: none;
}
.drop-gap.pickup-target:active {
  background: #bfdbfe;
}

/* ══════════════════════════
   MOBILE PANEL TABS
   (hidden on desktop, shown on mobile)
══════════════════════════ */
.mobile-panel-tabs {
  display: none;
  background: var(--surface);
  border-bottom: 2px solid var(--border);
  flex-shrink: 0;
}
.mpanel-btn {
  flex: 1;
  padding: 11px 4px;
  border: none;
  background: transparent;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.mpanel-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: #eff6ff;
}

/* ══════════════════════════
   RESPONSIVE — TABLET
══════════════════════════ */
@media (max-width: 900px) {
  .game-body {
    grid-template-columns: 180px 1fr 1fr;
  }
}

/* ══════════════════════════
   RESPONSIVE — MOBILE
══════════════════════════ */
@media (max-width: 768px) {
  /* ── Home screen ── */
  .home-header {
    padding: 28px 16px 24px;
  }
  .home-header .logo {
    font-size: 44px;
    margin-bottom: 8px;
  }
  .home-header h1 {
    font-size: 22px;
  }
  .home-header .tagline {
    font-size: 13px;
  }
  .levels-grid {
    grid-template-columns: 1fr;
    padding: 14px;
    gap: 12px;
  }
  .home-stats-bar {
    padding: 0 12px;
    gap: 8px;
    margin-bottom: 12px;
    margin-top: 12px;
  }
  .stat-chip {
    font-size: 13px;
    padding: 5px 12px;
  }

  /* ── Game header ── */
  .game-header {
    padding: 8px 12px;
    gap: 8px;
    flex-wrap: nowrap;
  }
  .btn-back {
    padding: 7px 10px;
    font-size: 13px;
    white-space: nowrap;
  }
  .level-title {
    font-size: 13px;
  }
  .level-concept {
    display: none;
  }
  .score-badge,
  .hint-badge {
    padding: 3px 8px;
    font-size: 12px;
  }
  .save-indicator {
    font-size: 10px;
  }

  /* ── Challenge tabs ── */
  .challenge-tabs {
    padding: 7px 10px;
    gap: 5px;
  }
  .tab-btn {
    padding: 6px 12px;
    font-size: 12px;
  }

  /* ── Mission box ── */
  .mission-box {
    padding: 8px 12px;
    font-size: 13px;
  }

  /* ── Mobile panel tabs: show ── */
  .mobile-panel-tabs {
    display: flex;
  }

  /* ── Game body: one panel at a time ── */
  .game-body {
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
  .panel {
    display: none;
    border-right: none;
    border-bottom: none;
    flex: 1;
    min-height: 0;
  }
  .panel.mobile-active {
    display: flex;
  }

  /* ── Palette: 2-column grid ── */
  .panel-palette {
    background: var(--surface);
  }
  .palette-blocks {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    padding: 10px;
    align-content: start;
  }
  .palette-block {
    font-size: 12px;
    padding: 10px 8px;
    min-height: 46px;
    justify-content: flex-start;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .palette-icon {
    font-size: 18px;
  }

  /* ── Program area ── */
  .program-scroll {
    flex: 1;
    min-height: 0;
  }
  .prog-block {
    min-height: 44px;
    font-size: 13px;
  }
  .prog-container-header {
    min-height: 44px;
  }
  .drop-gap {
    height: 10px;
  }
  .drop-gap.over {
    height: 40px;
  }

  /* Extra bottom padding so pickup bar doesn't cover last block */
  .mobile-pickup-bar.active ~ * .program-scroll,
  .program-scroll {
    padding-bottom: 0;
  }
  body:has(.mobile-pickup-bar.active) .program-scroll {
    padding-bottom: 70px;
  }

  /* ── Program controls: 2×2 grid ── */
  .program-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    padding: 8px 10px;
    flex-shrink: 0;
  }
  .btn {
    padding: 10px 8px;
    font-size: 13px;
    border-radius: 10px;
  }
  .btn-run {
    grid-column: 1 / -1;
    font-size: 15px;
    padding: 12px;
  }

  /* ── Simulation panel ── */
  .simulation-wrap {
    overflow-y: auto;
    flex: 1;
    min-height: 0;
  }
  #game-canvas {
    max-width: 100%;
    max-height: 260px;
  }
  .sim-log {
    max-height: 120px;
  }

  /* ── Canvas + DOM sim sizing ── */
  .canvas-wrap {
    padding: 8px;
  }
  .traf-scene {
    padding: 12px 10px;
    min-height: 90px;
  }
  .traf-pole-head {
    padding: 8px 6px;
    gap: 6px;
  }
  .traf-bulb {
    width: 32px;
    height: 32px;
  }
  .traf-info-row {
    gap: 6px;
  }
  .chatbot-v2,
  .traf-wrap {
    max-width: 100%;
  }
  .chatbot-body {
    min-height: 160px;
    max-height: 240px;
  }

  /* ── Modals ── */
  .modal-box {
    width: 96vw;
    max-height: 90dvh;
    padding: 20px 16px;
    overflow-y: auto;
  }
  .modal-icon {
    font-size: 44px;
  }
  .modal-box h2 {
    font-size: 18px;
  }
  .modal-actions {
    flex-direction: column;
    gap: 8px;
  }
  .modal-actions .btn {
    width: 100%;
    text-align: center;
  }
  .reflection-q textarea {
    font-size: 15px;
  }
}

/* ── TRAFFIC SIM — Traffic Light ── */
.traf-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 12px;
  width: 100%;
}

/* Ambulance alert bar */
.traf-ambulance {
  width: 100%;
  text-align: center;
  background: #fee2e2;
  border: 2px solid #fca5a5;
  border-radius: 10px;
  padding: 8px 12px;
  font-weight: 700;
  font-size: 13px;
  color: #991b1b;
  animation: trafPulse 0.5s ease-in-out infinite alternate;
}
@keyframes trafPulse {
  from {
    opacity: 0.6;
    background: #fee2e2;
  }
  to {
    opacity: 1;
    background: #fecaca;
  }
}

/* Main scene area */
.traf-scene {
  width: 100%;
  max-width: 380px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 14px;
  padding: 18px 16px;
  border: 2px solid #e5e7eb;
  transition: background 0.5s;
  min-height: 110px;
}

/* Cars */
.traf-cars {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 22px;
  min-width: 90px;
}
.traf-cars-left {
  justify-content: flex-end;
}
.traf-cars-right {
  justify-content: flex-start;
}
.traf-arrow {
  font-size: 18px;
  color: #6b7280;
}
.car-passed {
  font-size: 13px;
  font-weight: 700;
  color: #059669;
  white-space: nowrap;
}
.car-wait {
  display: inline-block;
  animation: carWobble 0.7s ease-in-out infinite alternate;
}
.car-go {
  display: inline-block;
  animation: carDrive 0.9s ease-out both;
}
@keyframes carWobble {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-4px);
  }
}
@keyframes carDrive {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(50px);
    opacity: 0;
  }
}

/* Traffic light pole */
.traf-pole-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.traf-pole-head {
  background: #1f2937;
  border-radius: 12px;
  padding: 10px 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  border: 3px solid #374151;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}
.traf-bulb {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: all 0.4s;
}
.bulb-off {
  background: #374151;
  border: 2px solid #4b5563;
}
.bulb-merah {
  background: #ef4444;
  border: 2px solid #dc2626;
  box-shadow:
    0 0 16px #ef4444,
    0 0 30px rgba(239, 68, 68, 0.4);
}
.bulb-kuning {
  background: #fbbf24;
  border: 2px solid #d97706;
  box-shadow:
    0 0 16px #fbbf24,
    0 0 30px rgba(251, 191, 36, 0.4);
}
.bulb-hijau {
  background: #22c55e;
  border: 2px solid #16a34a;
  box-shadow:
    0 0 16px #22c55e,
    0 0 30px rgba(34, 197, 94, 0.4);
}
.traf-pole-stick {
  width: 8px;
  height: 28px;
  background: #374151;
}
.traf-pole-base {
  width: 28px;
  height: 8px;
  background: #374151;
  border-radius: 4px;
}

/* Status label below scene */
.traf-status-label {
  font-weight: 700;
  font-size: 14px;
  padding: 7px 20px;
  border-radius: 20px;
  border: 2px solid #e5e7eb;
  transition: all 0.4s;
}

/* Info row */
.traf-info-row {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
  max-width: 380px;
}
.traf-badge {
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
}
.traf-badge-title {
  font-size: 10px;
  color: #6b7280;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.badge-warn {
  background: #fef3c7;
  border: 2px solid #fde68a;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
  color: #92400e;
}
.badge-ok {
  background: #ecfdf5;
  border: 2px solid #a7f3d0;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
  color: #065f46;
}

/* ── CHATBOT V2 — Customer/Bot distinction ── */
.chatbot-v2 {
  max-width: 380px;
  margin: 0 auto;
}
.chatbot-top-bar {
  background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
  color: #fff;
  padding: 10px 16px;
  border-radius: 10px 10px 0 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}
.bot-avatar {
  font-size: 24px;
}
.bot-status {
  font-size: 11px;
  opacity: 0.8;
}
.chatbot-body {
  background: #f9fafb;
  border: 1px solid var(--border);
  min-height: 220px;
  max-height: 320px;
  overflow-y: auto;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.chat-bubble {
  display: flex;
  gap: 6px;
  max-width: 90%;
}
.chat-bubble.bot {
  align-self: flex-start;
}
.chat-bubble.customer {
  align-self: flex-end;
  flex-direction: row-reverse;
}
.bubble-avatar {
  font-size: 18px;
  flex-shrink: 0;
  align-self: flex-end;
}
.bubble-text {
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-line;
  animation: bubbleIn 0.2s ease;
}
.chat-bubble.bot .bubble-text {
  background: #fff;
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}
.chat-bubble.customer .bubble-text {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-bottom-right-radius: 4px;
}
@keyframes bubbleIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.chatbot-checklist {
  background: #fff;
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 10px 10px;
  padding: 10px 14px;
}
.checklist-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  padding: 2px 0;
}
.check-icon {
  font-size: 14px;
}

.order-summary {
  background: #f0fdf4;
  border: 1px solid #a7f3d0;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 12px;
  margin-top: 8px;
}
.order-row {
  display: flex;
  justify-content: space-between;
  padding: 1px 0;
}
.order-total {
  font-weight: 800;
  color: #065f46;
  border-top: 1px solid #a7f3d0;
  margin-top: 4px;
  padding-top: 4px;
}
.order-discount {
  color: #7c3aed;
  font-weight: 700;
}

/* ── LOCALSTORAGE BADGE ── */
.save-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: #6b7280;
  animation: saveFlash 0.5s ease;
}
@keyframes saveFlash {
  from {
    color: #059669;
  }
  to {
    color: #6b7280;
  }
}

.progress-bar-wrap {
  background: #e5e7eb;
  border-radius: 4px;
  height: 4px;
  margin-top: 6px;
  overflow: hidden;
}
.progress-bar {
  background: #10b981;
  height: 100%;
  border-radius: 4px;
  transition: width 0.4s;
}

/* ── HOME STATS BAR ── */
.home-stats-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 18px auto 18px;
  padding: 0 16px;
  max-width: 700px;
}
.stat-chip {
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 14px;
  color: #374151;
}
.stat-chip strong {
  color: #111827;
}
.btn-reset-data {
  background: none;
  border: 1px solid #fca5a5;
  color: #dc2626;
  border-radius: 20px;
  padding: 5px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-reset-data:hover {
  background: #fee2e2;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 3px;
}

/* ══════════════════════════
   SPLASH / HALAMAN PEMBUKA
══════════════════════════ */
#screen-splash {
  background: linear-gradient(160deg, #dbeafe 0%, #eff6ff 45%, #f0fdf4 100%);
  align-items: center;
  justify-content: center;
  padding: 24px;
}

/* Panggung: rasio kunci ke gambar, jadi panel absolut selalu pas
   di atas area kosong berapa pun lebar layarnya. */
.splash-stage {
  position: relative;
  width: 100%;
  max-width: 1180px;
  container-type: inline-size;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.splash-art {
  display: block;
  width: 100%;
  height: auto;
}

/* Koordinat mengikuti kotak putih kosong di gambar (54,6% – 97,1% × 13,7% – 92,6%) */
.splash-panel {
  position: absolute;
  left: 56.2%;
  top: 16.5%;
  width: 36.8%;
  height: 58.5%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2px;
  font-size: clamp(10px, 1.15cqw, 16px);
}

.splash-eyebrow {
  display: inline-block;
  background: #dbeafe;
  color: #1d4ed8;
  font-weight: 700;
  font-size: 0.78em;
  letter-spacing: 0.02em;
  padding: 0.45em 0.9em;
  border-radius: 999px;
  margin-bottom: 0.9em;
}
.splash-panel-title {
  font-size: 2.15em;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.15;
  letter-spacing: -0.5px;
}
.splash-panel-sub {
  font-size: 1.02em;
  color: #475569;
  margin-top: 0.5em;
  line-height: 1.55;
}

.splash-facts {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55em;
}
.splash-facts li {
  display: flex;
  align-items: center;
  gap: 0.6em;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  padding: 0.6em 0.85em;
  font-size: 0.98em;
  font-weight: 600;
  color: #1e3a5f;
}
.splash-facts span {
  font-size: 1.2em;
}

.splash-actions {
  display: flex;
  flex-direction: column;
  gap: 0.6em;
}
.splash-btn {
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-weight: 700;
  cursor: pointer;
  padding: 0.85em 1em;
  min-height: 44px;
  font-size: 1em;
  transition:
    transform 0.15s,
    box-shadow 0.15s,
    background 0.15s;
}
.splash-btn:hover {
  transform: translateY(-2px);
}
.splash-btn-main {
  background: linear-gradient(135deg, #16a34a 0%, #059669 100%);
  color: #fff;
  font-size: 1.35em;
  letter-spacing: 0.03em;
  box-shadow: 0 6px 16px rgba(5, 150, 105, 0.35);
}
.splash-btn-main:hover {
  box-shadow: 0 10px 22px rgba(5, 150, 105, 0.45);
}
.splash-btn-alt {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.splash-btn-alt:hover {
  background: #1d4ed8;
}
.splash-btn-ghost {
  background: #fff;
  color: var(--primary);
  border: 2px solid #bfdbfe;
}
.splash-btn-ghost:hover {
  background: #eff6ff;
}

/* ── Modal: tujuan pembelajaran & author ── */
.modal-box-wide {
  max-width: 560px;
  text-align: left;
}
.modal-box-wide .modal-icon,
.modal-box-wide h2 {
  text-align: center;
}
.modal-box-wide > p {
  text-align: center;
}

.goal-list {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
  text-align: left;
}
.goal-list li {
  font-size: 14px;
  line-height: 1.55;
  color: #374151;
}
.goal-list strong {
  color: var(--primary);
}
.goal-note {
  background: #eff6ff;
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12px;
  color: #1e3a5f;
}

.author-card {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
}
.author-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
}
.author-link {
  display: inline-block;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}
.author-link:hover {
  text-decoration: underline;
}
.author-copy {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}

/* ── Splash: mobile (panel turun ke bawah gambar) ── */
@media (max-width: 768px) {
  #screen-splash {
    padding: 0;
    justify-content: flex-start;
  }
  .splash-stage {
    border-radius: 0;
    box-shadow: none;
    max-width: none;
  }
  .splash-panel {
    position: static;
    width: auto;
    height: auto;
    font-size: 14px;
    gap: 16px;
    padding: 16px 14px 28px;
    background: #fff;
    border-top: 3px solid var(--accent);
  }
  .splash-panel-title {
    font-size: 22px;
  }
  .splash-panel-sub {
    font-size: 14px;
  }
  .splash-facts li {
    font-size: 13px;
    padding: 10px 12px;
  }
  .splash-btn {
    padding: 13px 14px;
    font-size: 15px;
  }
  .splash-btn-main {
    font-size: 18px;
  }
}