styles.css

/* ---- Base ---- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-user-select: none;
  user-select: none;
}

:root {
  --font: "Comic Sans MS", "Chalkboard SE", "Baloo 2", "Segoe UI Rounded", system-ui,
    "Segoe UI", sans-serif;
}

html,
body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font);
  background: #1b2a4a;
  color: #fff;
}

#app {
  position: fixed;
  inset: 0;
  overflow: hidden;
  background: linear-gradient(160deg, #6ec6ff 0%, #a0e9ff 40%, #ffe29a 100%);
  cursor: none; /* the on-screen hand is the pointer */
}

/* ---- Camera (mirrored) ---- */
#video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1); /* mirror so it feels like a mirror; coords.js compensates */
  z-index: 1;
}

/* ---- Game layer ---- */
#stage {
  position: absolute;
  inset: 0;
  z-index: 2;
}
#fruits-layer {
  position: absolute;
  inset: 0;
}

/* ---- Fruits ---- */
.fruit {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform-origin: center;
  animation: pop-in 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
  will-change: transform;
}
.fruit .emoji {
  font-size: 1em; /* .fruit font-size is set per-fruit in JS */
  line-height: 1;
  filter: drop-shadow(0 6px 10px rgba(0, 0, 0, 0.35));
  animation: float 3s ease-in-out infinite;
  z-index: 1;
}
.fruit .label {
  margin-top: 0.12em;
  font-size: 0.3em;
  font-weight: 700;
  padding: 0.15em 0.6em;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  white-space: nowrap;
  z-index: 1;
}

/* dwell progress ring — only visible while hovering */
.fruit .ring {
  position: absolute;
  top: -6%;
  left: -6%;
  width: 112%;
  height: 112%;
  opacity: 0;
  transition: opacity 0.15s ease;
  pointer-events: none;
}
.fruit.hover .ring {
  opacity: 1;
}
.fruit.hover {
  transform: scale(1.08);
}
.ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.35);
  stroke-width: 7;
}
.ring-fg {
  fill: none;
  stroke: #fff44f;
  stroke-width: 8;
  stroke-linecap: round;
  transform: rotate(-90deg);
  transform-origin: 50% 50%;
  filter: drop-shadow(0 0 6px rgba(255, 244, 79, 0.9));
}

/* feedback states */
.fruit.correct {
  animation: wow 1.2s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  z-index: 4;
}
.fruit.correct .emoji {
  animation: none;
  filter: drop-shadow(0 0 22px rgba(255, 255, 120, 0.95)) drop-shadow(0 6px 10px rgba(0, 0, 0, 0.3));
}
.fruit.wrong {
  animation: shake 0.7s ease both;
}
.fruit.wrong .emoji {
  animation: none;
  filter: grayscale(0.4) drop-shadow(0 6px 10px rgba(0, 0, 0, 0.35));
}
.fruit.faded {
  opacity: 0.25;
  transform: scale(0.85);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

/* ---- Hand cursor ---- */
#hand-icon {
  position: absolute;
  top: 0;
  left: 0;
  font-size: 66px;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
  z-index: 5;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.55));
}
#hand-icon.visible {
  opacity: 1;
}

/* ---- Confetti ---- */
#confetti {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  pointer-events: none;
}

/* ---- HUD ---- */
#hud {
  position: absolute;
  top: 14px;
  left: 14px;
  right: 14px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  z-index: 6;
  pointer-events: none;
}
#score {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.4);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 800;
}
#score .star {
  filter: drop-shadow(0 0 6px rgba(255, 220, 80, 0.9));
}
#score-value.pop {
  animation: score-pop 0.4s ease;
  display: inline-block;
}
#replay {
  pointer-events: auto;
  border: none;
  cursor: pointer;
  width: clamp(52px, 8vw, 66px);
  height: clamp(52px, 8vw, 66px);
  border-radius: 50%;
  background: #fff;
  color: #333;
  font-size: clamp(24px, 4vw, 32px);
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.25);
  transition: transform 0.1s ease;
}
#replay:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.25);
}

/* ---- Prompt banner ---- */
#prompt-banner {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  background: rgba(0, 0, 0, 0.45);
  padding: 10px 28px;
  border-radius: 22px;
  z-index: 6;
  max-width: 70vw;
  backdrop-filter: blur(2px);
}
#banner-main {
  font-size: clamp(26px, 5vw, 52px);
  font-weight: 800;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
  animation: banner-in 0.4s ease;
}
#banner-sub {
  font-size: clamp(16px, 2.6vw, 26px);
  opacity: 0.9;
  margin-top: 2px;
}

/* ---- No-hand hint ---- */
#hint {
  position: absolute;
  bottom: 6%;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.5);
  padding: 12px 26px;
  border-radius: 999px;
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 700;
  z-index: 6;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
#hint.show {
  opacity: 1;
  animation: hint-bounce 1.2s ease-in-out infinite;
}

/* ---- Overlay (start / loading / error) ---- */
#overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, rgba(30, 60, 120, 0.92), rgba(120, 60, 160, 0.92));
  text-align: center;
  padding: 24px;
}
#overlay[hidden] {
  display: none;
}
#overlay .big-emoji {
  font-size: clamp(48px, 12vw, 96px);
  margin-bottom: 8px;
  animation: float 3s ease-in-out infinite;
}
#overlay h1 {
  font-size: clamp(34px, 8vw, 72px);
  margin-bottom: 10px;
  text-shadow: 0 4px 0 rgba(0, 0, 0, 0.2);
}
.subtitle {
  font-size: clamp(18px, 3.4vw, 28px);
  margin-bottom: 28px;
  opacity: 0.95;
}
.tiny {
  margin-top: 18px;
  font-size: clamp(13px, 2vw, 16px);
  opacity: 0.8;
}
#start-btn,
#retry-btn {
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-weight: 800;
  font-size: clamp(24px, 5vw, 40px);
  color: #fff;
  padding: 16px 48px;
  border-radius: 999px;
  background: linear-gradient(180deg, #ff8a5b 0%, #ff5e7e 100%);
  box-shadow: 0 8px 0 rgba(0, 0, 0, 0.25), 0 12px 24px rgba(0, 0, 0, 0.3);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
#start-btn:hover,
#retry-btn:hover {
  transform: translateY(-2px);
}
#start-btn:active,
#retry-btn:active {
  transform: translateY(6px);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.25);
}
#error-text {
  font-size: clamp(18px, 3.4vw, 26px);
  max-width: 620px;
  line-height: 1.4;
  margin-bottom: 26px;
}

/* spinner */
.spinner {
  width: 64px;
  height: 64px;
  border: 8px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}
#loading p {
  font-size: clamp(18px, 3.4vw, 28px);
}
#loading[hidden],
#error[hidden] {
  display: none;
}

/* ---- Keyframes ---- */
@keyframes pop-in {
  from {
    transform: scale(0);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}
@keyframes wow {
  0% {
    transform: scale(1.08) rotate(0deg);
  }
  30% {
    transform: scale(1.45) rotate(-8deg);
  }
  50% {
    transform: scale(1.4) rotate(8deg);
  }
  70% {
    transform: scale(1.5) rotate(-4deg);
  }
  100% {
    transform: scale(1.5) rotate(0deg);
  }
}
@keyframes shake {
  0%,
  100% {
    transform: translateX(0) rotate(0);
  }
  15% {
    transform: translateX(-12px) rotate(-6deg);
  }
  30% {
    transform: translateX(12px) rotate(6deg);
  }
  45% {
    transform: translateX(-10px) rotate(-5deg);
  }
  60% {
    transform: translateX(10px) rotate(5deg);
  }
  75% {
    transform: translateX(-6px) rotate(-3deg);
  }
}
@keyframes score-pop {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.6);
    color: #fff44f;
  }
  100% {
    transform: scale(1);
  }
}
@keyframes banner-in {
  from {
    transform: translateY(-12px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}
@keyframes hint-bounce {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-8px);
  }
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}