/* Counting Games 1 — Mateus underwater counting */
:root {
  --cg-deep: #023e8a;
  --cg-mid: #0077b6;
  --cg-light: #48cae4;
  --cg-foam: #caf0f8;
  --cg-sand: #ffe8a3;
  --cg-coral: #ff6b6b;
  --cg-leaf: #2a9d8f;
  --cg-ink: #012a4a;
  --cg-card: rgba(255, 255, 255, 0.94);
  --cg-font: "Fredoka", "Nunito", sans-serif;
}

html,
body.cg-body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  height: 100%;
}

body.cg-body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.18), transparent 28%),
    radial-gradient(circle at 80% 30%, rgba(255, 255, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #48cae4 0%, #0077b6 48%, #023e8a 100%) fixed;
  font-family: var(--cg-font);
  color: var(--cg-ink);
  overflow-x: hidden;
}

#cg-app {
  min-height: 100vh;
  box-sizing: border-box;
  padding: clamp(0.75rem, 2vw, 1.4rem);
  max-width: 980px;
  margin: 0 auto;
  position: relative;
}

.cg-shell {
  position: relative;
  z-index: 1;
}

.cg-bubbles {
  pointer-events: none;
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.cg-bubble {
  position: absolute;
  bottom: -40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  animation: cg-rise 9s linear infinite;
}

@keyframes cg-rise {
  to {
    transform: translateY(-110vh);
    opacity: 0;
  }
}

.cg-top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.cg-brand h1 {
  margin: 0;
  font-size: clamp(1.5rem, 5vw, 2.2rem);
  color: #fff;
  text-shadow: 0 2px 0 rgba(1, 42, 74, 0.25);
}

.cg-brand p {
  margin: 0.2rem 0 0;
  color: var(--cg-foam);
  font-weight: 700;
}

.cg-controls {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.cg-icon-btn,
.cg-back {
  border: 0;
  cursor: pointer;
  font-family: var(--cg-font);
  font-weight: 700;
}

.cg-icon-btn {
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 50%;
  background: var(--cg-card);
  font-size: 1.2rem;
}

.cg-back {
  background: rgba(255, 255, 255, 0.9);
  color: var(--cg-deep);
  border-radius: 999px;
  padding: 0.55rem 1rem;
}

.cg-panel {
  background: var(--cg-card);
  border-radius: 1.5rem;
  padding: clamp(1rem, 3vw, 1.6rem);
  box-shadow: 0 16px 36px rgba(1, 42, 74, 0.22);
}

.cg-section-title {
  margin: 0 0 0.4rem;
  font-size: clamp(1.3rem, 4vw, 1.8rem);
  text-align: center;
}

.cg-section-sub {
  margin: 0 0 1rem;
  text-align: center;
  font-weight: 700;
  opacity: 0.75;
}

.cg-lang-grid,
.cg-level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.85rem;
}

.cg-card-btn {
  border: 0;
  border-radius: 1.25rem;
  background: linear-gradient(180deg, #fff, #e8f9ff);
  box-shadow: 0 8px 0 rgba(2, 62, 138, 0.18);
  padding: 1.1rem 0.9rem;
  cursor: pointer;
  font-family: var(--cg-font);
  text-align: center;
  transition: transform 0.12s ease;
}

.cg-card-btn:hover {
  transform: translateY(-3px);
}

.cg-card-btn:active {
  transform: translateY(3px);
  box-shadow: 0 4px 0 rgba(2, 62, 138, 0.18);
}

.cg-card-flag {
  display: block;
  font-size: 2.4rem;
  margin-bottom: 0.3rem;
}

.cg-card-name {
  display: block;
  font-size: 1.35rem;
  font-weight: 700;
}

.cg-card-hello {
  display: block;
  margin-top: 0.25rem;
  font-weight: 700;
  opacity: 0.7;
}

.cg-card-emoji {
  display: block;
  font-size: 2.6rem;
  margin-bottom: 0.35rem;
}

.cg-game-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.9rem;
}

.cg-scoreboard {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.cg-chip {
  background: #fff3cd;
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  font-weight: 700;
  font-size: 0.95rem;
}

.cg-chip.cg-chip-main {
  background: #d8f8e3;
}

.cg-prompt {
  text-align: center;
  margin: 0.4rem 0 0.9rem;
}

.cg-prompt h2 {
  margin: 0;
  font-size: clamp(1.25rem, 4vw, 1.7rem);
}

.cg-stage {
  position: relative;
  min-height: 220px;
  border-radius: 1.3rem;
  background:
    radial-gradient(circle at 15% 25%, rgba(255, 255, 255, 0.25), transparent 20%),
    linear-gradient(180deg, rgba(72, 202, 228, 0.55), rgba(2, 62, 138, 0.35));
  border: 3px solid rgba(255, 255, 255, 0.45);
  overflow: hidden;
  margin-bottom: 1rem;
  padding: 0.8rem;
}

.cg-stage-sand {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 28px;
  background: linear-gradient(180deg, transparent, rgba(255, 232, 163, 0.85));
}

.cg-objects {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: center;
  align-items: center;
  min-height: 180px;
}

.cg-obj {
  font-size: clamp(2.2rem, 7vw, 3.2rem);
  animation: cg-pop 0.4s cubic-bezier(0.2, 1.4, 0.4, 1) both;
  filter: drop-shadow(0 6px 0 rgba(1, 42, 74, 0.12));
}

@keyframes cg-pop {
  from { transform: scale(0.5); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.cg-hear {
  display: block;
  margin: 0 auto 1rem;
  border: 0;
  background: var(--cg-sand);
  color: var(--cg-ink);
  font-family: var(--cg-font);
  font-weight: 700;
  font-size: 1.05rem;
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  cursor: pointer;
  box-shadow: 0 6px 0 #e0c56a;
}

.cg-hear:active {
  transform: translateY(3px);
  box-shadow: 0 3px 0 #e0c56a;
}

.cg-choices {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
  gap: 0.65rem;
}

.cg-choice {
  border: 0;
  min-height: 4.6rem;
  border-radius: 1.1rem;
  background: #fff;
  box-shadow: 0 7px 0 rgba(1, 42, 74, 0.12);
  font-family: var(--cg-font);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--cg-ink);
  cursor: pointer;
}

.cg-choice:hover {
  transform: translateY(-2px);
}

.cg-choice:active {
  transform: translateY(3px);
  box-shadow: 0 3px 0 rgba(1, 42, 74, 0.12);
}

.cg-choice.correct {
  background: #b7f7c8;
  animation: cg-bounce 0.45s ease;
}

.cg-choice.wrong {
  background: #ffd0c6;
  animation: cg-shake 0.4s ease;
}

@keyframes cg-bounce {
  0%, 100% { transform: scale(1); }
  40% { transform: scale(1.08); }
}

@keyframes cg-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.cg-feedback {
  text-align: center;
  min-height: 1.8rem;
  margin-top: 0.85rem;
  font-weight: 700;
  font-size: 1.2rem;
}

.cg-feedback.good { color: var(--cg-leaf); }
.cg-feedback.bad { color: var(--cg-coral); }

.cg-treasure {
  text-align: center;
  padding: 1rem 0.5rem;
}

.cg-treasure-emoji {
  font-size: 5rem;
  display: block;
  animation: cg-bounce 0.8s ease infinite;
}

.cg-treasure h2 {
  margin: 0.4rem 0;
  font-size: clamp(1.6rem, 5vw, 2.2rem);
}

.cg-treasure p {
  margin: 0 0 1rem;
  font-weight: 700;
}

.cg-primary {
  border: 0;
  background: var(--cg-leaf);
  color: #fff;
  font-family: var(--cg-font);
  font-weight: 700;
  font-size: 1.15rem;
  border-radius: 999px;
  padding: 0.85rem 1.4rem;
  cursor: pointer;
  box-shadow: 0 7px 0 #1f7a6e;
}

.cg-gems {
  display: flex;
  gap: 0.35rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 0.5rem 0 0.8rem;
}

.cg-gem {
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 50%;
  background: rgba(2, 62, 138, 0.18);
}

.cg-gem.on {
  background: #ffd166;
  box-shadow: 0 0 0 2px #fff inset;
}

.cg-celebration {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 40;
  overflow: hidden;
}

.cg-confetti {
  position: absolute;
  top: -10px;
  font-size: 1.5rem;
  animation: cg-fall 1.6s linear forwards;
}

@keyframes cg-fall {
  to {
    transform: translateY(110vh) rotate(420deg);
    opacity: 0.2;
  }
}

@media (max-width: 600px) {
  .cg-choice {
    min-height: 4rem;
    font-size: 1.35rem;
  }
}