@import url('https://fonts.googleapis.com/css2?family=Baloo+2:wght@400;500;600;700;800&display=swap');

:root {
  /* Neo-Brutalism Soft Colors */
  --c-bg: #fdfbf7;
  --c-panel: #ffffff;
  --c-panel-2: #f0ebe1;
  --c-text: #1a1a1a;
  --c-text-2: #4a4a4a;
  
  /* Pastel Palette */
  --c-blue: #a3e6ff;
  --c-blue-h: #7bd4f5;
  --c-emerald: #a7f3d0;
  --c-emerald-h: #6ee7b7;
  --c-purple: #e9d5ff;
  --c-purple-h: #d8b4fe;
  --c-amber: #fef08a;
  --c-amber-h: #fde047;
  --c-pink: #fbcfe8;
  --c-pink-h: #f9a8d4;
  --c-slate: #e2e8f0;
  --c-slate-h: #cbd5e1;

  /* Borders & Shadows */
  --border-width: 2.5px;
  --border-color: #0f172a;
  --shadow-color: #0f172a;
  
  --shadow-sm: 2px 2px 0px var(--shadow-color);
  --shadow-md: 4px 4px 0px var(--shadow-color);
  --shadow-lg: 6px 6px 0px var(--shadow-color);
  
  --radius: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #e2e8f0;
}

html {
  font-size: 16px;
}

body {
  color: var(--c-text);
  font-family: 'Baloo 2', sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-user-select: none;
  user-select: none;
}

/* stage-wrapper handles the outer padding */
.stage-wrapper {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  overflow: hidden;
}

.stage {
  position: relative;
  width: 100%;
  height: 100%;
  max-height: calc(100vh - 3rem);
  max-width: 1600px;
  background: var(--c-bg);
  border: var(--border-width) solid var(--border-color);
  box-shadow: 12px 12px 0px var(--shadow-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

button, input {
  font: inherit;
  color: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--c-panel-2); border-left: 2px solid var(--border-color); }
::-webkit-scrollbar-thumb { background: var(--c-slate-h); border: 2px solid var(--border-color); border-radius: 4px; }

/* ============ APP LAYOUT ============ */
.app {
  display: grid;
  grid-template-columns: 320px 1fr;
  grid-template-rows: auto 1fr;
  grid-template-areas: "header header" "sidebar canvas";
  width: 100%;
  height: 100%;
  gap: 1rem;
  padding: 1rem;
  background: var(--c-bg);
  overflow: hidden;
}

/* ============ TOPBAR ============ */
.topbar {
  grid-area: header;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--c-panel);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.8rem 1.2rem;
  box-shadow: var(--shadow-md);
  gap: 1rem;
  flex-wrap: wrap;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.brand-mark {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius);
  background: var(--c-pink);
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text);
  flex-shrink: 0;
}

.brand-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--c-text);
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-sub {
  font-size: 0.85rem;
  color: var(--c-text-2);
  font-weight: 600;
}

.topbar-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.btn-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--c-text);
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-md);
  transition: transform 0.1s, box-shadow 0.1s;
}

.btn-menu:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--shadow-color);
}

.btn-menu:active {
  transform: translate(4px, 4px);
  box-shadow: 0px 0px 0px var(--shadow-color);
}

.bm-blue { background: var(--c-blue); }
.bm-emerald { background: var(--c-emerald); }
.bm-purple { background: var(--c-purple); }
.bm-amber { background: var(--c-amber); }
.bm-slate { background: var(--c-slate); }

.btn-menu .badge {
  background: var(--c-panel);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 900;
  border: 2px solid var(--border-color);
  margin-left: 0.2rem;
}

/* ============ SIDEBAR ============ */
.sidebar {
  grid-area: sidebar;
  background: var(--c-panel);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  overflow-y: auto;
}

.sb-section {
  background: var(--c-panel-2);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}

.sb-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  font-weight: 900;
  color: var(--c-text);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.sb-title .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  background: var(--c-amber);
  color: var(--c-text);
  border: 2px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 900;
}

.opt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.opt-card {
  background: var(--c-panel);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.6rem 0.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--c-text);
  transition: transform 0.1s, box-shadow 0.1s, background 0.2s;
  box-shadow: var(--shadow-sm);
}

.opt-card .em {
  margin-bottom: 0.2rem;
}

.opt-card:hover {
  transform: translate(-1px, -1px);
  box-shadow: var(--shadow-md);
  background: var(--c-blue);
}

.opt-card:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--shadow-color);
}

.opt-card.sel {
  background: var(--c-blue-h);
  box-shadow: inset 3px 3px 0px rgba(0,0,0,0.1);
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--shadow-color);
}

.opt-card[data-act="panas"].sel { background: var(--c-pink-h); }
.opt-card[data-act="dingin"].sel { background: var(--c-blue-h); }

.int-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
}

.int-btn {
  background: var(--c-panel);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.5rem 0.2rem;
  font-size: 0.7rem;
  font-weight: 800;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.1s, box-shadow 0.1s;
}

.int-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: var(--shadow-md);
  background: var(--c-amber);
}

.int-btn.sel {
  background: var(--c-amber-h);
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--shadow-color);
}

.int-btn .bars {
  display: flex;
  gap: 3px;
}

.int-btn .bars span {
  width: 6px;
  height: 12px;
  background: var(--c-panel-2);
  border: 1.5px solid var(--border-color);
  border-radius: 2px;
}

.int-btn.sel .bars span.on {
  background: var(--c-text);
}

.btn-run {
  background: var(--c-emerald-h);
  color: var(--c-text);
  font-size: 0.95rem;
  font-weight: 900;
  padding: 0.8rem;
  border-radius: var(--radius);
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: transform 0.1s, box-shadow 0.1s;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-run:not(:disabled):hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
  background: #34d399;
}

.btn-run:not(:disabled):active {
  transform: translate(4px, 4px);
  box-shadow: 0px 0px 0px var(--shadow-color);
}

.btn-run:disabled {
  background: var(--c-slate);
  color: var(--c-text-2);
  box-shadow: var(--shadow-sm);
  cursor: not-allowed;
  transform: none;
}

.status-card {
  background: var(--c-blue);
  border-radius: var(--radius);
  padding: 1rem;
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.status-card .lab {
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.status-card .txt {
  font-size: 0.95rem;
  font-weight: 700;
}

.exp-counter {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--c-pink);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
  font-size: 0.85rem;
  font-weight: 800;
  box-shadow: var(--shadow-sm);
}

.exp-counter b {
  background: var(--c-text);
  color: #fff;
  padding: 0.2rem 0.8rem;
  border-radius: var(--radius-full);
}

.btn-reset {
  padding: 0.8rem;
  background: var(--c-panel-2);
  font-size: 0.9rem;
  font-weight: 800;
  border-radius: var(--radius);
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: transform 0.1s, box-shadow 0.1s;
}

.btn-reset:hover {
  background: var(--c-slate-h);
  transform: translate(-1px, -1px);
  box-shadow: var(--shadow-md);
}

.btn-reset:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--shadow-color);
}

/* ============ CANVAS AREA ============ */
.canvas-area {
  grid-area: canvas;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #a5f3fc;
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-md);
  min-height: 250px;
}

#canvas-3d {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#canvas-3d:active { cursor: grabbing; }

/* Camera control buttons */
.cam-bar {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.3rem;
  z-index: 10;
  background: var(--c-panel);
  padding: 0.3rem;
  border-radius: var(--radius);
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.cam-btn {
  padding: 0.3rem 0.5rem;
  background: var(--c-panel-2);
  font-size: 0.7rem;
  font-weight: 800;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  border: 1.5px solid var(--border-color);
  transition: transform 0.1s, box-shadow 0.1s;
}

.cam-btn i { width: 0.8rem; height: 0.8rem; }

.cam-btn:hover {
  background: var(--c-blue);
  transform: translate(-1px, -1px);
  box-shadow: 2px 2px 0px var(--shadow-color);
}

.cam-btn.active {
  background: var(--c-blue-h);
  transform: translate(1px, 1px);
  box-shadow: 0px 0px 0px var(--shadow-color);
}

.cam-hint {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  background: var(--c-panel);
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 700;
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 10;
  opacity: 1;
  transition: opacity 0.4s ease;
}

.cam-hint.fade { opacity: 0; pointer-events: none; }

/* Thermometer overlay */
.thermo-overlay {
  position: absolute;
  top: 5.5rem;
  right: 1rem;
  background: var(--c-panel);
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius);
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-sm);
  z-index: 8;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  font-weight: 900;
}

.thermo-overlay .dot {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: var(--c-slate-h);
  border: 2px solid var(--border-color);
  transition: background 0.4s ease;
}

/* ============ FLOATING WIZARD ============ */
.wizard-dock {
  position: absolute;
  right: 1rem;
  top: 8rem;
  width: min(22rem, 90%);
  max-height: calc(100vh - 10rem);
  background: var(--c-panel);
  border-radius: var(--radius-lg);
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-lg);
  z-index: 30;
  display: none;
  flex-direction: column;
  overflow: hidden;
  animation: wiz-in 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.wizard-dock.show { display: flex; }

@keyframes wiz-in {
  from { opacity: 0; transform: translateX(30px) scale(0.9); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

.wz-head {
  padding: 0.8rem 1rem;
  background: var(--c-emerald);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: var(--border-width) solid var(--border-color);
}

.wz-head h3 {
  font-size: 1rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-transform: uppercase;
}

.wz-close {
  background: var(--c-panel);
  width: 2rem;
  height: 2rem;
  border-radius: 6px;
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 2px 2px 0px var(--border-color);
  transition: transform 0.1s, box-shadow 0.1s;
}

.wz-close:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--border-color);
}

.wz-close:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--border-color);
}

.wz-body {
  padding: 1rem;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.wz-progress {
  width: 100%;
  height: 0.6rem;
  background: var(--c-panel-2);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 0.8rem;
}

.wz-progress .bar {
  height: 100%;
  background: var(--c-emerald-h);
  border-right: 2px solid var(--border-color);
  transition: width 0.4s ease;
}

.wz-mission {
  font-size: 0.75rem;
  font-weight: 900;
  color: var(--c-emerald-h);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.wz-title {
  font-size: 1.15rem;
  font-weight: 900;
  margin-bottom: 0.6rem;
}

.wz-desc {
  font-size: 0.9rem;
  line-height: 1.5;
  background: var(--c-blue);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.8rem;
  margin-bottom: 0.8rem;
}

.wz-tip {
  font-size: 0.8rem;
  background: var(--c-amber);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.6rem;
  line-height: 1.4;
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  font-weight: 600;
}

.wz-nav {
  display: flex;
  gap: 0.6rem;
  padding: 0.8rem 1rem;
  border-top: var(--border-width) solid var(--border-color);
  background: var(--c-panel-2);
}

.wz-prev, .wz-next {
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 900;
  border: 2px solid var(--border-color);
  transition: transform 0.1s, box-shadow 0.1s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.wz-prev {
  background: var(--c-panel);
  box-shadow: 2px 2px 0px var(--border-color);
}

.wz-prev:hover:not(:disabled) {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--border-color);
}

.wz-prev:active:not(:disabled) {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--border-color);
}

.wz-prev:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.wz-next {
  flex: 1;
  background: var(--c-emerald-h);
  box-shadow: 3px 3px 0px var(--border-color);
}

.wz-next:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0px var(--border-color);
}

.wz-next:active {
  transform: translate(3px, 3px);
  box-shadow: 0px 0px 0px var(--border-color);
}

/* ============ MODALS ============ */
#mov {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.25s ease;
}

#mov.show {
  display: flex;
  opacity: 1;
}

.modal {
  display: none;
  width: 100%;
  max-width: 42rem;
  max-height: 88vh;
  background: var(--c-panel);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  flex-direction: column;
  transform: scale(0.95);
  transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal.show {
  display: flex;
  transform: scale(1);
}

.m-head {
  padding: 1rem 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: var(--border-width) solid var(--border-color);
}

.m-head h2 {
  font-size: 1.1rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-transform: uppercase;
}

.mh-blue { background: var(--c-blue); }
.mh-purple { background: var(--c-purple); }
.mh-amber { background: var(--c-amber); }
.mh-slate { background: var(--c-slate); }

.btn-x {
  background: var(--c-panel);
  width: 2rem;
  height: 2rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border-color);
  box-shadow: 2px 2px 0px var(--border-color);
  transition: transform 0.1s, box-shadow 0.1s;
}

.btn-x:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--border-color);
}

.btn-x:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--border-color);
}

.m-body {
  padding: 1.2rem;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
  font-size: 0.95rem;
}

.m-body p {
  line-height: 1.5;
  margin-bottom: 1rem;
}

.tips {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.tip {
  background: var(--c-panel-2);
  border: 2px solid var(--border-color);
  padding: 0.8rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.tip h3 {
  font-size: 0.95rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.4rem;
}

.tip p {
  font-size: 0.85rem;
  margin: 0;
}

.tip.green { background: var(--c-emerald); }
.tip.purple { background: var(--c-purple); }
.tip.amber { background: var(--c-amber); }

.callout {
  margin-top: 1.2rem;
  background: var(--c-blue);
  border: 2px solid var(--border-color);
  padding: 0.8rem 1rem;
  border-radius: var(--radius);
  font-weight: 700;
  box-shadow: var(--shadow-sm);
  font-size: 0.9rem;
}

/* Quiz */
.q {
  background: var(--c-panel-2);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.8rem;
  box-shadow: var(--shadow-sm);
}

.q.ok { background: var(--c-emerald); }
.q.no { background: var(--c-pink); }

.q .qtxt {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 0.8rem;
}

.q label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  background: var(--c-panel);
  margin-bottom: 0.4rem;
  border: 2px solid var(--border-color);
  box-shadow: 2px 2px 0px rgba(0,0,0,0.1);
  transition: transform 0.1s, box-shadow 0.1s;
}

.q label:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px rgba(0,0,0,0.2);
}

.q input[type=radio] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--c-text);
}

.q input[type=text] {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-weight: 600;
  box-shadow: inset 2px 2px 0px rgba(0,0,0,0.05);
}

.q input[type=text]:focus {
  outline: none;
  background: var(--c-amber);
}

.fb {
  display: none;
  margin-top: 0.8rem;
  padding: 0.6rem;
  border-radius: 8px;
  font-weight: 800;
  border: 2px solid var(--border-color);
}

.fb.show { display: block; }
.fb.fb-ok { background: var(--c-emerald-h); }
.fb.fb-no { background: var(--c-pink-h); }

.btn-check {
  width: 100%;
  padding: 1rem;
  background: var(--c-purple-h);
  color: var(--c-text);
  font-weight: 900;
  font-size: 1.1rem;
  border-radius: var(--radius);
  border: 2px solid var(--border-color);
  box-shadow: 4px 4px 0px var(--border-color);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: transform 0.1s, box-shadow 0.1s;
  margin-top: 0.8rem;
}

.btn-check:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--border-color);
  background: var(--c-purple);
}

.btn-check:active {
  transform: translate(4px, 4px);
  box-shadow: 0px 0px 0px var(--border-color);
}

#q-result {
  display: none;
  margin-top: 1.2rem;
  padding: 1rem;
  border-radius: var(--radius);
  text-align: center;
  font-size: 1.1rem;
  font-weight: 900;
  border: 2px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

#q-result.show { display: block; }
#q-result.pass { background: var(--c-emerald); }
#q-result.part { background: var(--c-amber); }

/* Catatan */
.cat-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  background: var(--c-panel);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.2rem;
}

.cat-table thead {
  background: var(--c-slate);
  border-bottom: 2px solid var(--border-color);
}

.cat-table th {
  text-align: left;
  padding: 0.6rem 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.cat-table td {
  padding: 0.6rem 0.8rem;
  border-top: 1px solid var(--border-color);
  font-weight: 600;
}

.cat-table .tag {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 800;
  border: 1px solid var(--border-color);
}
.tag-red { background: var(--c-pink); }
.tag-blue { background: var(--c-blue); }

.cat-empty {
  text-align: center;
  padding: 2.5rem 1rem;
  background: var(--c-panel-2);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
  font-weight: 700;
}

.changes {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.6rem;
  margin: 0.8rem 0 1.2rem;
}

.ch {
  padding: 0.8rem 0.4rem;
  background: var(--c-panel-2);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.ch.found { background: var(--c-emerald); }

.ch .em {
  display: block;
  margin-bottom: 0.4rem;
}

.ch .nm {
  font-size: 0.85rem;
  font-weight: 900;
}

.ch .fr {
  font-size: 0.7rem;
  font-weight: 600;
  margin-top: 0.2rem;
  opacity: 0.8;
}

.ch .st {
  font-size: 0.65rem;
  font-weight: 800;
  margin-top: 0.4rem;
  text-transform: uppercase;
  background: var(--c-panel);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.2rem;
  display: inline-block;
}

.reflect-box {
  background: var(--c-amber);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.reflect-box ol { padding-left: 1.2rem; }
.reflect-box li { margin-bottom: 0.4rem; }
.sec-h {
  font-size: 1rem;
  font-weight: 900;
  text-transform: uppercase;
  margin: 1.2rem 0 0.6rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.3rem;
}

/* Info modal */
.dev {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--c-blue);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  margin-bottom: 1.2rem;
  box-shadow: var(--shadow-sm);
}

.dev-photo {
  width: 5rem;
  height: 5rem;
  border-radius: 12px;
  background: var(--c-panel);
  flex-shrink: 0;
  object-fit: cover;
  border: 2px solid var(--border-color);
  box-shadow: 2px 2px 0px var(--border-color);
}

.dev-info .lab {
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.dev-info .nm {
  font-size: 1.15rem;
  font-weight: 900;
  line-height: 1.2;
}

.dev-info .org {
  font-size: 0.85rem;
  font-weight: 700;
  margin-top: 0.2rem;
}

.tujuan h3 {
  font-size: 1rem;
  font-weight: 900;
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tujuan ul { list-style: none; }
.tujuan li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
}

.tujuan li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--border-color);
  border-radius: 50%;
  margin-top: 0.45rem;
  flex-shrink: 0;
}

.meta {
  margin-top: 1.2rem;
  background: var(--c-panel-2);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.8rem;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.meta-row b { font-weight: 900; }

/* Landing */
#landing {
  position: absolute;
  inset: 0;
  z-index: 200;
  background: var(--c-amber);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.5s cubic-bezier(0.8, 0, 0.2, 1);
  overflow: hidden;
  padding: 1rem;
}

#landing.hide {
  transform: translateY(-100%);
  pointer-events: none;
}

.land-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.land-card {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2.5rem 1.5rem;
  max-width: 48rem;
  width: 100%;
  background: var(--c-panel);
  border-radius: 20px;
  border: 3px solid var(--border-color);
  box-shadow: 12px 12px 0px var(--border-color);
}

.land-tag {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--c-pink);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 900;
  margin-bottom: 1.2rem;
  box-shadow: 2px 2px 0px var(--border-color);
}

.land-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.2rem;
  text-transform: uppercase;
}

.land-sub {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 1.5rem;
  max-width: 38rem;
  margin-left: auto;
  margin-right: auto;
}

.btn-enter {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2rem;
  background: var(--c-emerald);
  border-radius: var(--radius-full);
  font-size: 1.1rem;
  font-weight: 900;
  text-transform: uppercase;
  border: 3px solid var(--border-color);
  box-shadow: 6px 6px 0px var(--border-color);
  transition: transform 0.1s, box-shadow 0.1s;
}

.btn-enter:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0px var(--border-color);
  background: var(--c-emerald-h);
}

.btn-enter:active {
  transform: translate(4px, 4px);
  box-shadow: 0px 0px 0px var(--border-color);
}

#loading {
  position: absolute;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bg);
  flex-direction: column;
  gap: 1.5rem;
}

.spinner {
  width: 3rem;
  height: 3rem;
  border: 4px solid var(--border-color);
  border-top-color: var(--c-pink);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

#loading .t {
  font-size: 1rem;
  font-weight: 900;
  text-transform: uppercase;
}

/* Toast */
#toast {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(1rem);
  background: var(--c-panel);
  color: var(--c-text);
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 900;
  border: 2px solid var(--border-color);
  box-shadow: 4px 4px 0px var(--border-color);
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  z-index: 150;
  text-align: center;
}

#toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

#toast.ok { background: var(--c-emerald); }
#toast.warn { background: var(--c-amber); }

/* Microscopic View Overlay */
.micro-view {
  position: absolute;
  bottom: 4rem;
  left: 1rem;
  width: 220px;
  background: var(--c-panel);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  z-index: 15;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease, border-color 0.2s;
  transform: translateY(20px);
  cursor: pointer;
}
.micro-view:hover {
  border-color: var(--c-blue);
}
.micro-view.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.mv-head {
  background: var(--c-slate);
  padding: 0.4rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border-bottom: var(--border-width) solid var(--border-color);
  text-transform: uppercase;
}
.mv-head i { width: 0.9rem; height: 0.9rem; }
#canvas-2d {
  width: 100%;
  height: 180px;
  background: #0f172a;
  display: block;
}
.mv-state {
  background: var(--c-amber);
  padding: 0.4rem;
  font-size: 0.8rem;
  font-weight: 800;
  text-align: center;
  border-top: var(--border-width) solid var(--border-color);
  text-transform: uppercase;
}

/* =========================================
   RESPONSIVE DESIGN (Media Queries)
========================================== */

/* Tablet & Smaller Desktop & Short Screens */
@media (max-width: 1024px), (max-height: 600px) {
  .stage-wrapper {
    padding: 0; /* Let it touch edges on smaller screens */
  }
  .stage {
    border-radius: 0;
    border: none;
    box-shadow: none;
    max-width: none;
    max-height: none;
    aspect-ratio: auto; /* Remove forced aspect ratio */
    height: 100%;
  }
  .app {
    padding: 0.8rem;
    gap: 0.8rem;
  }
}

/* Mobile Devices & Landscape */
@media (max-width: 768px), (max-height: 600px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-rows: auto 55vh auto; /* Slightly taller canvas in stacked mode */
    grid-template-areas: 
      "header"
      "canvas"
      "sidebar";
    overflow-y: auto; /* Allow scrolling inside .app */
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
  }

  .sidebar {
    overflow-y: visible; /* Sidebar content shouldn't have its own scrollbar on mobile */
  }

  .canvas-area {
    min-height: 55vh;
  }

  .topbar {
    padding: 0.6rem 0.8rem;
  }
  
  .brand-title {
    font-size: 1rem;
  }
  
  .brand-sub {
    font-size: 0.75rem;
  }
  
  .brand-mark {
    width: 2.5rem;
    height: 2.5rem;
  }

  .btn-menu {
    padding: 0.5rem 0.7rem;
    font-size: 0.75rem;
  }
  
  .btn-menu svg, .btn-menu i {
    width: 1rem;
    height: 1rem;
  }

  .wz-title {
    font-size: 1.1rem;
  }

  .wz-desc {
    font-size: 0.85rem;
  }

  .modal {
    margin: 1rem;
    max-height: calc(100vh - 2rem);
    width: calc(100% - 2rem);
  }
  
  .tips {
    grid-template-columns: 1fr;
  }
  
  .changes {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cam-bar {
    top: 0.5rem;
    right: 0.5rem;
  }
  
  .cam-btn {
    padding: 0.4rem 0.6rem;
    font-size: 0.7rem;
  }
  
  .thermo-overlay {
    top: auto;
    bottom: 4.5rem;
    right: 0.5rem;
  }
  
  .micro-view {
    bottom: 7rem;
    left: 0.5rem;
    width: 170px;
  }
  #canvas-2d {
    height: 140px;
  }

  .land-card {
    padding: 2rem 1rem;
    border-radius: 16px;
    box-shadow: 8px 8px 0px var(--border-color);
  }
  
  .btn-enter {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
  }
}

/* Progress Bar */
.progress-bar-container {
  width: 100%;
  height: 10px;
  background: var(--c-panel-2);
  border: var(--border-width) solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--c-emerald);
  transition: width 0.1s linear;
}

/* Quiz Interactive Styles */
.q-prog {
  font-size: 0.85rem;
  color: var(--c-purple);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}
.qtxt {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}
.opt-col {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}
.opt-btn {
  text-align: left;
  padding: 1rem;
  background: #ffffff;
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--c-text);
  font-size: 1.05rem;
  font-weight: 700;
  transition: all 0.2s;
  cursor: pointer;
  box-shadow: 4px 4px 0px var(--border-color);
}
.opt-btn:hover {
  transform: translateY(-2px);
  box-shadow: 6px 6px 0px var(--border-color);
  background: #8b5cf6;
  color: white;
}
.opt-btn.sel-correct {
  background: #10b981;
  color: white;
  border-color: #047857;
  box-shadow: 4px 4px 0px #047857;
}
.opt-btn.sel-wrong {
  background: #ef4444;
  color: white;
  border-color: #b91c1c;
  box-shadow: 4px 4px 0px #b91c1c;
}
.opt-btn:disabled {
  pointer-events: none;
  opacity: 0.8;
}
.fb {
  display: none;
  padding: 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  margin-bottom: 1.5rem;
  animation: popIn 0.3s ease;
}
.fb.fb-ok { background: var(--c-emerald); color: white; display: block; }
.fb.fb-no { background: var(--c-amber); color: #000; display: block; }
.btn-next {
  width: 100%;
  padding: 1rem;
  background: var(--c-purple);
  color: white;
  font-weight: 700;
  border: 2px solid var(--c-purple-h);
  border-radius: var(--radius);
  cursor: pointer;
  box-shadow: 4px 4px 0px var(--c-purple-h);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  animation: popIn 0.3s ease;
}
.btn-next:hover {
  transform: translateY(-2px);
  box-shadow: 6px 6px 0px var(--c-purple-h);
}
@keyframes popIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}