/* ==========================================================================
   PPE SAFETY CHALLENGE - MODERN INDUSTRIAL SAFETY STYLESHEET
   "Choose Right. Work Safe."
   Matches the official industrial UI layout and exact 3x3 locker grid
   ========================================================================== */

:root {
  /* Core Color Palette */
  --bg-dark: #070d18;
  --bg-panel: #0d1524;
  --bg-card: #131d2e;
  --bg-card-hover: #1b283d;
  --bg-stage: #0a111e;
  --panel-border: #1b283d;
  --panel-border-light: #253752;

  --safety-yellow: #facc15;
  --safety-gold: #eab308;
  --safety-amber: #f59e0b;
  --safety-orange: #fb923c;
  --safety-red: #ef4444;
  --safety-green: #10b981;
  --safety-blue: #0ea5e9;
  --safety-cyan: #38bdf8;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --glow-yellow: rgba(250, 204, 21, 0.35);
  --glow-green: rgba(16, 185, 129, 0.4);
  --glow-red: rgba(239, 68, 68, 0.45);
  --glow-blue: rgba(56, 189, 248, 0.35);

  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Chakra Petch', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.5;
  overflow-x: hidden;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

/* App Container */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: 100%;
  max-width: 1680px;
  margin: 0 auto;
  padding: 0 16px 16px 16px;
}

/* ==========================================================================
   HEADER / TOP BAR
   ========================================================================== */

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  margin: 10px 0 12px 0;
  background: linear-gradient(90deg, #0c1422 0%, #111b2b 100%);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 12px;
}

.safety-helmet-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.helmet-svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 6px rgba(250, 204, 21, 0.4));
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.game-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: #fff;
}

.game-tagline {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--safety-yellow);
}

/* Scenario Stepper HUD */
.scenario-stepper {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.4);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--panel-border);
}

.step-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dim);
  background: transparent;
  transition: var(--transition-normal);
}

.step-pill .step-num {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--panel-border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
}

.step-pill.active {
  background: rgba(250, 204, 21, 0.18);
  color: var(--safety-yellow);
  border: 1px solid rgba(250, 204, 21, 0.6);
}

.step-pill.active .step-num {
  background: var(--safety-yellow);
  color: #000;
  font-weight: 800;
}

.step-pill.completed {
  color: var(--safety-green);
}

.step-pill.completed .step-num {
  background: var(--safety-green);
  color: #fff;
}

.step-dots {
  color: var(--text-dim);
  font-size: 0.85rem;
  letter-spacing: 2px;
}

/* HUD Right: Score & Audio Controls */
.hud-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.score-display {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.45);
  padding: 5px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--panel-border);
}

.score-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.score-val {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--safety-yellow);
  min-width: 30px;
  text-align: right;
}

.score-star-icon {
  color: var(--safety-yellow);
  font-size: 1rem;
}

.score-stars-sub {
  color: var(--text-dim);
  font-size: 0.95rem;
}

.btn-icon-hud {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: #141f2f;
  border: 1px solid var(--panel-border);
  color: var(--text-main);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-icon-hud:hover {
  background: #1c2b42;
  border-color: var(--safety-cyan);
  transform: translateY(-1px);
}

/* ==========================================================================
   MAIN VIEWPORT & SCREEN MANAGEMENT
   ========================================================================== */

.main-viewport {
  flex: 1;
  display: flex;
  position: relative;
}

.screen-view {
  display: none;
  width: 100%;
  animation: fadeIn 0.3s ease forwards;
}

.screen-view.active {
  display: flex;
  flex-direction: column;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.99); }
  to { opacity: 1; transform: scale(1); }
}

/* ==========================================================================
   SCREEN 1: START / HERO VIEW WITH DEDICATED HQ HOME SCREEN GRAPHIC
   ========================================================================== */

#screen-start {
  position: relative;
  width: 100%;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px 0;
}

.home-screen-backdrop {
  position: relative;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  aspect-ratio: 1024 / 458;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--panel-border-light);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.7);
  background: #070d18;
  display: flex;
  align-items: center;
  justify-content: center;
}

.home-bg-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  user-select: none;
  pointer-events: none;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: high-quality;
  transform: translateZ(0);
}

.btn-start-hero-overlay {
  position: absolute;
  top: 78.5%;
  left: 50.8%;
  transform: translate(-50%, -50%);
  width: 24.8%;
  height: 9.8%;
  min-width: 180px;
  min-height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: 14px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  outline: none;
}

.btn-hero-hover-text {
  opacity: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 900;
  color: #000;
  letter-spacing: 1px;
  transition: opacity 0.2s ease;
  user-select: none;
}

.btn-start-hero-overlay:hover {
  background: rgba(250, 204, 21, 0.12);
  box-shadow: 0 0 40px rgba(250, 204, 21, 0.55);
  transform: translate(-50%, -50%) scale(1.015);
}

.btn-start-hero-overlay:active {
  transform: translate(-50%, -50%) scale(0.985);
}

/* Common Button Styles */
.btn {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: var(--safety-yellow);
  color: #000;
}

.btn-primary:hover {
  background: #fde047;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--glow-yellow);
}

.btn-secondary {
  background: var(--bg-card);
  border: 1px solid var(--panel-border);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--safety-yellow);
}

.btn-large {
  padding: 14px 32px;
  font-size: 1.1rem;
}

/* ==========================================================================
   SCREEN 2: GAMEPLAY 3-COLUMN GRID
   ========================================================================== */

.gameplay-grid {
  display: grid;
  grid-template-columns: 290px 1fr 360px;
  gap: 14px;
  width: 100%;
  flex: 1;
}

.card-panel {
  background: var(--bg-panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   LEFT COLUMN: HAZARD ASSESSMENT & WORKER PROTECTION STATUS
   ========================================================================== */

.sidebar-hazard-panel {
  gap: 12px;
  overflow-y: auto;
}

.panel-header {
  margin-bottom: 4px;
}

.scenario-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--safety-cyan);
  background: rgba(56, 189, 248, 0.12);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
}

.scenario-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 4px;
}

.situation-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.card-subtitle-small {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
}

/* Identify Hazards Card */
.hazard-identification-card {
  background: #111a28;
  border: 1px solid rgba(239, 68, 68, 0.25);
  padding: 12px;
  border-radius: var(--radius-md);
}

.hazard-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hazard-list-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.78rem;
  color: #fca5a5;
  line-height: 1.3;
}

.hazard-list-item::before {
  content: "⚠️";
  font-size: 0.75rem;
  margin-top: 1px;
}

/* Worker Protection Status Card (With Blue Neon Silhouette) */
.worker-protection-card {
  background: #111a28;
  border: 1px solid var(--panel-border-light);
  padding: 12px;
  border-radius: var(--radius-md);
}

.protection-status-content {
  display: flex;
  align-items: center;
  gap: 14px;
}

.body-silhouette-box {
  width: 56px;
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(56, 189, 248, 0.05);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-sm);
  padding: 4px;
}

.wireframe-body-svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 4px rgba(56, 189, 248, 0.5));
}

.protection-rows {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.status-row-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #162235;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  font-size: 0.74rem;
  transition: var(--transition-fast);
}

.status-row-item .row-icon {
  font-size: 0.85rem;
  margin-right: 4px;
}

.status-row-item .row-label {
  flex: 1;
  color: #fff;
  font-weight: 500;
}

.status-row-item .row-badge {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
}

.status-row-item .row-badge.status-q {
  background: #0284c7;
  color: #fff;
}

.status-row-item .row-badge.status-check {
  background: var(--safety-green);
  color: #fff;
}

/* Tip Card */
.tip-card {
  background: #131d2e;
  border: 1px solid var(--panel-border);
  padding: 10px 12px;
  border-radius: var(--radius-md);
  margin-top: auto;
}

.tip-title {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--safety-yellow);
  margin-bottom: 3px;
}

.tip-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.35;
}

/* ==========================================================================
   CENTER COLUMN: INTERACTIVE WORKPLACE STAGE & 3D WORKER AVATAR
   ========================================================================== */

.center-stage-panel {
  padding: 0;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  background: var(--bg-stage);
}

.scene-environment-container {
  flex: 1;
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.stage-fx-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 15;
}

.scene-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background: #090e18;
  overflow: hidden;
}

.env-svg-stage {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  pointer-events: none;
}

.scene-img-backdrop {
  position: relative;
  width: 100%;
  height: 100%;
}

.env-stage-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
  display: block;
  filter: contrast(1.03) brightness(0.98);
  image-rendering: -webkit-optimize-contrast;
  image-rendering: high-quality;
  transform: translateZ(0);
  backface-visibility: hidden;
  transition: object-position 0.3s ease;
}

.stage-chemical .env-stage-photo {
  object-position: center 48%;
}

.stage-grinding .env-stage-photo {
  object-position: center 58%;
}

.env-stage-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 55%, rgba(0, 0, 0, 0.0) 0%, rgba(0, 0, 0, 0.35) 100%), linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, transparent 35%, rgba(0, 0, 0, 0.35) 100%);
  pointer-events: none;
}

.avatar-wrapper {
  position: relative;
  z-index: 10;
  width: 290px;
  height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.worker-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  animation: characterAuraPulse 3s ease-in-out infinite;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.worker-svg image {
  transition: opacity 0.2s ease-in-out;
}

@keyframes characterAuraPulse {
  0% {
    filter: drop-shadow(0 0 5px rgba(56, 189, 248, 0.45))
            drop-shadow(0 0 12px rgba(56, 189, 248, 0.2))
            drop-shadow(0 14px 24px rgba(0, 0, 0, 0.6));
  }
  50% {
    filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.8))
            drop-shadow(0 0 22px rgba(56, 189, 248, 0.45))
            drop-shadow(0 0 34px rgba(56, 189, 248, 0.25))
            drop-shadow(0 14px 24px rgba(0, 0, 0, 0.65));
  }
  100% {
    filter: drop-shadow(0 0 5px rgba(56, 189, 248, 0.45))
            drop-shadow(0 0 12px rgba(56, 189, 248, 0.2))
            drop-shadow(0 14px 24px rgba(0, 0, 0, 0.6));
  }
}

/* Specific Equipped PPE Item Electric Cyan/Blue Glow Pop */
.gear-pop-glow {
  animation: ppeGearPopGlow 0.55s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes ppeGearPopGlow {
  0% {
    filter: drop-shadow(0 0 16px #38bdf8) drop-shadow(0 0 32px #0284c7);
    opacity: 0.2;
    transform: scale(1.04);
    transform-origin: center center;
  }
  40% {
    filter: drop-shadow(0 0 20px #38bdf8) drop-shadow(0 0 36px #38bdf8);
    opacity: 1;
    transform: scale(1.02);
  }
  100% {
    filter: url(#gearShadow);
    opacity: 1;
    transform: scale(1);
  }
}

.avatar-step-container {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-step-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.55));
  transition: opacity 0.15s ease;
  user-select: none;
  pointer-events: none;
}

.avatar-floor-shadow {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 150px;
  height: 18px;
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0) 75%);
  border-radius: 50%;
  pointer-events: none;
}

/* Consequence Alert Overlay & Safe Success Overlay */
.consequence-freeze-overlay, .success-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(6px);
  animation: popOverlay 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.consequence-freeze-overlay.active, .success-overlay.active {
  display: flex;
}

@keyframes popOverlay {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.consequence-freeze-overlay {
  background: rgba(18, 4, 4, 0.88);
  border: 3px solid var(--safety-red);
}

.freeze-banner {
  background: #180c0c;
  border: 2px solid var(--safety-red);
  border-radius: var(--radius-lg);
  padding: 22px;
  width: 95%;
  max-width: 620px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  text-align: center;
  box-shadow: 0 0 50px var(--glow-red);
  overflow-y: auto;
}

.hazard-flasher {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 800;
  color: #fff;
  background: var(--safety-red);
  padding: 5px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  animation: flashRed 0.8s infinite alternate;
  letter-spacing: 0.5px;
}

@keyframes flashRed {
  from { opacity: 0.85; transform: scale(0.98); }
  to { opacity: 1; filter: brightness(1.25); transform: scale(1.02); }
}

.consequence-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: #fff;
  margin-bottom: 4px;
}

.consequence-desc {
  font-size: 0.82rem;
  color: #fca5a5;
  line-height: 1.35;
  margin-bottom: 12px;
}

.missing-items-box {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(239, 68, 68, 0.35);
  padding: 10px 12px;
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  text-align: left;
}

.missing-box-header {
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(239, 68, 68, 0.2);
}

.missing-items-box .box-label {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--safety-yellow);
  letter-spacing: 1px;
}

.missing-hazard-cards {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 220px;
  overflow-y: auto;
  padding-right: 4px;
}

.hazard-card-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.35);
  border-left: 4px solid var(--safety-red);
  padding: 6px 8px;
  border-radius: var(--radius-sm);
}

.hazard-card-item.distractor-card {
  border-left-color: var(--safety-amber);
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.4);
}

.hazard-card-item .card-icon {
  font-size: 1.1rem;
  line-height: 1;
  padding-top: 2px;
}

.hazard-card-item .card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hazard-card-item .card-header-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.hazard-card-item .card-item-name {
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
}

.hazard-card-item .card-slot-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--safety-red);
  background: rgba(239, 68, 68, 0.2);
  padding: 1px 6px;
  border-radius: 4px;
}

.hazard-card-item .card-hazard-text {
  font-size: 0.72rem;
  color: #fca5a5;
  line-height: 1.25;
}

.btn-warning {
  background: var(--safety-orange);
  color: #000;
  font-weight: 800;
  padding: 10px 20px;
}

.btn-warning:hover {
  background: #f97316;
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.4);
}

/* Success Overlay */
.success-overlay {
  background: rgba(5, 25, 15, 0.85);
  border: 3px solid var(--safety-green);
}

.success-banner {
  background: #091a13;
  border: 2px solid var(--safety-green);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 460px;
  text-align: center;
  box-shadow: 0 0 40px var(--glow-green);
}

.success-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 8px;
}

.badge-icon {
  font-size: 1.5rem;
}

.badge-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--safety-green);
}

.success-desc {
  font-size: 0.88rem;
  color: #a7f3d0;
  line-height: 1.4;
  margin-bottom: 16px;
}

.points-awarded-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(250, 204, 21, 0.2);
  border: 1px solid var(--safety-yellow);
  color: var(--safety-yellow);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.95rem;
  margin-bottom: 18px;
}

.btn-success {
  background: var(--safety-green);
  color: #fff;
  font-size: 0.95rem;
  padding: 10px 22px;
}

.btn-success:hover {
  background: #059669;
  box-shadow: 0 4px 16px var(--glow-green);
}

/* ==========================================================================
   RIGHT COLUMN: 3x3 PPE SAFETY LOCKER & ACTION BUTTONS
   ========================================================================== */

.sidebar-locker-panel {
  gap: 12px;
  display: flex;
  flex-direction: column;
}

.panel-header-locker {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.locker-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.locker-icon {
  font-size: 1.1rem;
}

.locker-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}

.locker-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.locker-instruction {
  font-size: 0.72rem;
  color: var(--safety-cyan);
}

/* 3-Column Grid Layout for 10 Locker Items */
.ppe-locker-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  width: 100%;
  margin-bottom: auto;
  max-height: calc(100vh - 265px);
  overflow-y: auto;
  padding-right: 2px;
}

.ppe-locker-grid::-webkit-scrollbar {
  width: 5px;
}

.ppe-locker-grid::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.25);
  border-radius: 4px;
}

.ppe-locker-grid::-webkit-scrollbar-thumb {
  background: #1e3556;
  border-radius: 4px;
}

.ppe-locker-grid::-webkit-scrollbar-thumb:hover {
  background: var(--safety-cyan);
}

.ppe-item-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  text-align: center;
  background: #09121f;
  border: 1.5px solid #162740;
  border-radius: var(--radius-md);
  padding: 6px 3px 5px 3px;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  aspect-ratio: 1 / 1.15;
  width: 100%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

.ppe-item-card:hover {
  background: #111e33;
  border-color: var(--safety-cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.25);
}

.ppe-item-card.equipped {
  background: linear-gradient(180deg, rgba(14, 165, 233, 0.2) 0%, rgba(14, 165, 233, 0.08) 100%);
  border-color: var(--safety-cyan);
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.35);
}

/* Radio Indicator Top-Right */
.item-toggle-indicator {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1.5px solid #1e3556;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.ppe-item-card.equipped .item-toggle-indicator {
  background: var(--safety-cyan);
  border-color: var(--safety-cyan);
}

.radio-check-mark {
  font-size: 0.65rem;
  font-weight: 900;
  color: #000;
  line-height: 1;
}

.item-icon-box {
  width: 100%;
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 2px 0;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.ppe-svg-icon {
  width: 80%;
  height: 80%;
  max-width: 68px;
  max-height: 68px;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.5));
}

.ppe-img-icon {
  width: 85%;
  height: 85%;
  max-width: 74px;
  max-height: 74px;
  object-fit: contain;
  filter: drop-shadow(0 3px 8px rgba(0, 0, 0, 0.55));
}

.ppe-item-card:hover .item-icon-box {
  transform: scale(1.08);
}

.item-name {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.18;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  padding: 0 2px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

/* Bottom Actions Dock */
.locker-actions-dock {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
  padding-top: 4px;
}

.btn-check-ppe {
  background: #1a2536;
  border: 1px solid var(--panel-border-light);
  color: #cbd5e1;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.btn-check-ppe:hover {
  background: #24344c;
  color: #fff;
  border-color: var(--safety-cyan);
}

.btn-check-icon {
  font-weight: 900;
  color: var(--safety-cyan);
}

.btn-start-task {
  background: var(--safety-yellow);
  color: #000;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.5px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 16px var(--glow-yellow);
  transition: var(--transition-normal);
}

.btn-start-task:hover {
  background: #fde047;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px var(--glow-yellow);
}

.btn-play-icon {
  font-size: 0.95rem;
}

/* ==========================================================================
   SCREEN 3: SUMMARY / COMPLETION VIEW
   ========================================================================== */

.summary-card {
  max-width: 900px;
  margin: 20px auto;
  background: linear-gradient(180deg, #131d2e 0%, #0d1524 100%);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.summary-header {
  text-align: center;
}

.victory-trophy {
  font-size: 3rem;
  margin-bottom: 6px;
}

.summary-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: #fff;
}

.summary-subtitle {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--safety-yellow);
  letter-spacing: 2px;
}

.metrics-dashboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.metric-box {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--safety-yellow);
}

.metric-sub {
  font-size: 0.74rem;
  color: var(--text-dim);
}

.takeaway-banner {
  background: #090f19;
  border: 2px solid var(--safety-yellow);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  text-align: center;
}

.takeaway-heading {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--safety-yellow);
  margin-bottom: 10px;
}

.mantra-chain {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.mantra-step {
  background: #162235;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: #fff;
  border: 1px solid var(--panel-border);
}

.mantra-arrow {
  color: var(--safety-yellow);
  font-weight: 900;
}

.scenarios-review-box {
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-md);
  padding: 14px;
}

.scenarios-review-box h4 {
  font-size: 0.9rem;
  color: #fff;
  margin-bottom: 10px;
}

.review-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--panel-border);
}

.review-row:last-child {
  border-bottom: none;
}

.rev-icon {
  font-size: 1.3rem;
}

.rev-info {
  flex: 1;
}

.rev-info strong {
  font-size: 0.82rem;
  color: #fff;
  display: block;
}

.rev-info p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.rev-status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--safety-green);
  background: rgba(16, 185, 129, 0.15);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.summary-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
}

/* ==========================================================================
   AUDIO SETTINGS MODAL
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
}

.modal-backdrop.active {
  display: flex;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 440px;
  padding: 22px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.1rem;
  color: #fff;
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
}

.btn-close:hover {
  color: #fff;
}

.audio-control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.audio-control-row label {
  font-size: 0.85rem;
  color: var(--text-main);
}

.audio-control-row input[type="range"] {
  width: 140px;
  accent-color: var(--safety-yellow);
}

.audio-control-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--safety-yellow);
  cursor: pointer;
}

.audio-info-note {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.35;
  background: rgba(0, 0, 0, 0.3);
  padding: 10px;
  border-radius: var(--radius-sm);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
}

/* ==========================================================================
   PRINTABLE CERTIFICATE
   ========================================================================== */

.printable-certificate {
  display: none;
}

@media print {
  body * {
    visibility: hidden;
  }
  .printable-certificate, .printable-certificate * {
    visibility: visible;
  }
  .printable-certificate {
    display: block !important;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    color: #000;
    padding: 40px;
  }
  .cert-border {
    border: 10px double #1e293b;
    padding: 40px;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  .cert-logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: #b45309;
    margin-bottom: 20px;
  }
  .cert-header h1 {
    font-size: 2.2rem;
    letter-spacing: 2px;
    margin-bottom: 10px;
  }
  .cert-name {
    font-size: 1.8rem;
    color: #1e3a8a;
    text-decoration: underline;
    margin: 15px 0;
  }
  .cert-desc {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
  }
  .cert-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-top: 50px;
  }
  .sig-line {
    width: 200px;
    border-bottom: 2px solid #000;
    margin-bottom: 6px;
    height: 30px;
  }
  .cert-seal {
    border: 3px solid #b45309;
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 800;
    color: #b45309;
  }
}

/* ==========================================================================
   RESPONSIVE LAYOUT BREAKPOINTS
   ========================================================================== */

@media (max-width: 1180px) {
  .gameplay-grid {
    grid-template-columns: 260px 1fr 320px;
  }
}

@media (max-width: 960px) {
  .gameplay-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  .sidebar-hazard-panel, .sidebar-locker-panel {
    max-height: 400px;
  }
  .scene-environment-container {
    min-height: 380px;
  }
}