/* ==========================================================================
   Pop & Glow: Shapes & Colors - Custom Stylesheet
   ออกแบบสำหรับการยศาสตร์เด็ก 2 ขวบ (Child Ergonomics & Toddler Safety)
   ========================================================================== */

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

:root {
  --primary-red: #FF4757;
  --primary-yellow: #FFA502;
  --primary-blue: #2E86DE;
  --primary-green: #2ED573;
  --pastel-sky-top: #E0F2FE;
  --pastel-sky-bottom: #F0FDF4;
  --hud-bg: rgba(255, 255, 255, 0.85);
  --hud-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  /* Toddler protection: disable zooming, selection, gestures */
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  overscroll-behavior: none;
  font-family: 'Kanit', 'Prompt', -apple-system, BlinkMacSystemFont, sans-serif;
  background: url('../assets/sky_bg.jpg') center center / cover no-repeat,
              linear-gradient(180deg, #BAE6FD 0%, #E0F2FE 45%, #FEF9C3 100%);
}

/* Canvas fills the screen smoothly */
#gameCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 10;
  cursor: pointer;
  touch-action: none;
}

/* Animated soft clouds in the background */
.cloud-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.cloud {
  position: absolute;
  background: rgba(255, 255, 255, 0.65);
  border-radius: 999px;
  filter: blur(8px);
  animation: floatCloud linear infinite;
}

@keyframes floatCloud {
  from { transform: translateX(-300px); }
  to { transform: translateX(calc(100vw + 300px)); }
}

/* Target color halo on screen edges */
#screenHalo {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 15;
  border-radius: 0;
  transition: box-shadow 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: inset 0 0 60px rgba(255, 255, 255, 0);
}

.halo-pulse {
  animation: pulseHalo 1.8s ease-in-out infinite alternate;
}

@keyframes pulseHalo {
  0% { opacity: 0.5; filter: drop-shadow(0 0 10px currentColor); }
  100% { opacity: 1; filter: drop-shadow(0 0 35px currentColor); }
}

/* Floating HUD Controls */
.hud-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 12px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 30;
  pointer-events: none;
}

.hud-interactive {
  pointer-events: auto;
}

.hud-pill {
  background: var(--hud-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 3px solid rgba(255, 255, 255, 0.9);
  border-radius: 9999px;
  box-shadow: var(--hud-shadow);
}

/* Speech Prompt Banner */
#promptBanner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  font-size: clamp(1.2rem, 3.5vw, 2.2rem);
  font-weight: 800;
  color: #1E293B;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  animation: bounceGentle 3s ease-in-out infinite;
}

@keyframes bounceGentle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

/* Big toddler-friendly circular buttons */
.toddler-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  border: 3px solid #E2E8F0;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all 0.15s ease-out;
  touch-action: manipulation;
}

.toddler-btn:active {
  transform: scale(0.92);
}

/* Parental Gate Button with 3-second hold circular SVG indicator */
.parental-gate-btn {
  position: relative;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  cursor: pointer;
  border: 3px solid #E2E8F0;
  transition: transform 0.15s ease;
}

.parental-gate-btn svg.meter-circle {
  position: absolute;
  top: -3px;
  left: -3px;
  width: 66px;
  height: 66px;
  transform: rotate(-90deg);
  pointer-events: none;
}

.parental-gate-btn circle.meter-bar {
  stroke: #FF4757;
  stroke-width: 6;
  stroke-dasharray: 188.5; /* 2 * PI * 30 */
  stroke-dashoffset: 188.5;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.1s linear;
  fill: transparent;
}

.parental-gate-btn.holding {
  transform: scale(1.08);
  box-shadow: 0 0 25px rgba(255, 71, 87, 0.5);
}

/* Webcam PiP (Picture in Picture) preview */
#webcamContainer {
  position: absolute;
  bottom: 16px;
  right: 16px;
  width: 140px;
  height: 105px;
  border-radius: 18px;
  overflow: hidden;
  border: 3px solid white;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  background: #000;
  z-index: 35;
  display: none;
}

#webcamVideo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1); /* Mirror video preview for natural selfie interaction */
}

/* Microphone blowing visual indicator */
#micVisualizer {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--hud-shadow);
  border: 3px solid #38BDF8;
  z-index: 30;
  transition: all 0.3s ease;
  opacity: 0;
  pointer-events: none;
}

#micVisualizer.active {
  opacity: 1;
}

.mic-bar {
  width: 6px;
  height: 16px;
  background: #38BDF8;
  border-radius: 3px;
  transition: height 0.08s ease;
}

/* Modals (Parental Gate & Celebration) */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  padding: 16px;
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: white;
  border-radius: 32px;
  padding: 28px;
  max-width: 520px;
  width: 100%;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  transform: scale(0.92);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-backdrop.open .modal-card {
  transform: scale(1);
}

/* Celebration Overlay */
#celebrationOverlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 40;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

#celebrationOverlay.show {
  opacity: 1;
  pointer-events: auto;
}

.star-trophy {
  animation: floatTrophy 2.5s ease-in-out infinite alternate;
}

@keyframes floatTrophy {
  0% { transform: scale(1) translateY(0) rotate(-3deg); }
  100% { transform: scale(1.1) translateY(-15px) rotate(3deg); }
}

/* Glowing star wand cursor for camera gestures */
.magic-wand-glow {
  position: absolute;
  pointer-events: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,1) 0%, rgba(254,240,138,0.8) 50%, rgba(250,204,21,0) 80%);
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 0 15px #FACC15);
  z-index: 25;
  transition: width 0.1s ease, height 0.1s ease;
}