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

:root {
  --ci:        #4BAFDE;
  --ci-light:  #EAF6FD;
  --ci-dark:   #2B8DB8;
  --ci-text:   #1a5f7a;
  --radius-card: 28px;
}

/* ─────────────────────────────────────
   Theme tokens (set on <body>)
───────────────────────────────────── */
body.theme-closer    { --ci:#4BAFDE; --ci-light:#EAF6FD; --ci-dark:#2B8DB8; --ci-text:#174e65; }
body.theme-deeper    { --ci:#F5C842; --ci-light:#FFFBEA; --ci-dark:#C9A000; --ci-text:#5a4200; }
body.theme-encourage { --ci:#E8558A; --ci-light:#FEF0F5; --ci-dark:#B5306A; --ci-text:#6b1035; }

body {
  min-height: 100vh;
  background: var(--ci-light);
  font-family: 'Kanit', sans-serif;
  color: var(--ci-text);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: background 0.45s ease;
  user-select: none;
}

/* ─────────────────────────────────────
   Decorative blobs + smileys
───────────────────────────────────── */
.bg-deco {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.blob {
  position: absolute;
  border-radius: 50%;
  background: var(--ci);
  opacity: 0.18;
  transition: background 0.45s ease;
}
.blob-1 { width: 340px; height: 340px; top: -100px; left: -120px; }
.blob-2 { width: 240px; height: 240px; top: -60px;  right: -80px; }
.blob-3 { width: 280px; height: 280px; bottom: -90px; left: -80px; }
.blob-4 { width: 200px; height: 200px; bottom: -60px; right: -60px; }

.smiley {
  position: absolute;
  opacity: 0.22;
  animation: floatSmiley var(--fd, 6s) var(--fdl, 0s) ease-in-out infinite;
}
.s1 { top:  4%;  left:  3%;  --fd:6.5s; --fdl:0s;   font-size:4.5rem; }
.s2 { top:  5%;  right: 5%;  --fd:5.8s; --fdl:1.2s; font-size:3.8rem; }
.s3 { bottom:10%; left: 4%;  --fd:7s;   --fdl:0.5s; font-size:5rem;   }
.s4 { bottom:8%;  right:3%;  --fd:6.2s; --fdl:2s;   font-size:4rem;   }
.s5 { top:42%;   left: 1%;  --fd:5.5s; --fdl:0.8s; font-size:3rem;   }

@keyframes floatSmiley {
  0%,100% { transform: translateY(0)    rotate(-5deg); }
  50%      { transform: translateY(-18px) rotate(5deg);  }
}

.star-deco {
  position: absolute;
  color: var(--ci-dark);
  opacity: 0.3;
  transition: color 0.45s ease;
  animation: twinkleStar 3s ease-in-out infinite;
}
.sd1 { font-size:1.4rem; top:18%;  left:8%;   animation-delay:0s;   }
.sd2 { font-size:1rem;   top:30%;  right:7%;  animation-delay:1s;   }
.sd3 { font-size:1.2rem; bottom:22%; left:50%; animation-delay:0.5s; }

@keyframes twinkleStar {
  0%,100% { opacity:0.2; transform:scale(1);   }
  50%      { opacity:0.6; transform:scale(1.4); }
}

/* ─────────────────────────────────────
   Layout
───────────────────────────────────── */
.game {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.4rem;
  padding: 1.5rem 1rem;
  width: 100%;
  max-width: 420px;
}

/* ─────────────────────────────────────
   Title
───────────────────────────────────── */
.title {
  font-size: clamp(1.35rem, 5vw, 1.9rem);
  font-weight: 800;
  color: var(--ci-dark);
  letter-spacing: 1px;
  text-align: center;
  transition: color 0.45s ease;
}

/* ─────────────────────────────────────
   Category tabs
───────────────────────────────────── */
.cat-tabs {
  display: flex;
  gap: 0.5rem;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 100px;
  padding: 0.35rem;
  box-shadow: 0 4px 18px rgba(0,0,0,0.08);
}

.cat-tab {
  padding: 0.5rem 1.1rem;
  border: none;
  border-radius: 100px;
  font-family: 'Kanit', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  background: transparent;
  color: rgba(0,0,0,0.4);
  transition: background 0.25s, color 0.25s, transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.cat-tab:hover { background: rgba(255,255,255,0.85); color: var(--ci-dark); }
.cat-tab.active {
  background: var(--ci);
  color: #fff;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
  transform: translateY(-1px);
}

/* ─────────────────────────────────────
   3-D Card Scene
───────────────────────────────────── */
.scene {
  width: 250px;
  height: 330px;
  perspective: 1400px;
  cursor: pointer;
  animation: float 5s ease-in-out infinite;
}

@keyframes float {
  0%,100% { transform: translateY(0);    }
  50%      { transform: translateY(-12px); }
}

.card {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.85s cubic-bezier(0.4, 0.2, 0.2, 1);
  box-shadow: 0 22px 44px rgba(0,0,0,0.14);
  border-radius: var(--radius-card);
}

.card.is-flipped { transform: rotateY(180deg); }

.card.is-dealing {
  animation: dealIn 0.42s cubic-bezier(0.34,1.56,0.64,1) forwards;
}

@keyframes dealIn {
  from { transform: translateY(-55px) scale(0.78) rotate(-6deg); opacity:0.5; }
  to   { transform: translateY(0)     scale(1)    rotate(0deg);  opacity:1;   }
}

/* ─────────────────────────────────────
   Card faces shared
───────────────────────────────────── */
.face {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-card);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  overflow: hidden;
}

/* ─────────────────────────────────────
   Back face
───────────────────────────────────── */
.face--back {
  background: var(--ci);
  border: 3px solid rgba(255,255,255,0.4);
  transition: background 0.45s ease;
}

/* repeating smiley watermark */
.face--back::before {
  content: '😊  😄  🙂  😁  ☺️  😊  😄  🙂  😁  ☺️  😊  😄  🙂  😁  ☺️  😊  😄  🙂  😁  ☺️';
  position: absolute;
  inset: 0;
  font-size: 1.55rem;
  opacity: 0.12;
  letter-spacing: 4px;
  line-height: 2.5;
  padding: 10px;
  overflow: hidden;
  word-break: break-all;
  pointer-events: none;
}

.face--back::after {
  content: '';
  position: absolute;
  inset: 14px;
  border-radius: 18px;
  border: 2px solid rgba(255,255,255,0.28);
  pointer-events: none;
}

.face-inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 1.6rem 1.4rem;
  z-index: 1;
}

.back-deco-top, .back-deco-bot { display:flex; justify-content:center; }

.back-emoji {
  font-size: 2.6rem;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.15));
}

.back-count {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
}

.count-num {
  font-size: 5rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  text-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

.count-num.bump { animation: bump 0.35s cubic-bezier(0.34,1.56,0.64,1); }

@keyframes bump {
  0%   { transform: scale(1);    }
  50%  { transform: scale(1.35); }
  100% { transform: scale(1);    }
}

.count-lbl {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.back-cat-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(255,255,255,0.75);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ─────────────────────────────────────
   Front face
───────────────────────────────────── */
.face--front {
  transform: rotateY(180deg);
  background: #fff;
  border: 3px solid var(--ci);
  transition: border-color 0.45s ease;
}

.face--front .face-inner {
  justify-content: center;
  gap: 0.7rem;
  padding: 2rem 1.6rem;
}

.card-cat-badge {
  position: absolute;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ci);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 0.22rem 0.85rem;
  border-radius: 100px;
  transition: background 0.45s ease;
  white-space: nowrap;
}

.card-index {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ci);
  opacity: 0.5;
  letter-spacing: 1px;
  transition: color 0.45s ease;
}

.question {
  font-size: clamp(0.9rem, 2.8vw, 1.08rem);
  font-weight: 600;
  color: #333;
  text-align: center;
  line-height: 1.85;
}

.card-foot-emoji {
  font-size: 1.8rem;
  position: absolute;
  bottom: 1rem;
  right: 1.2rem;
  opacity: 0.25;
}

/* ─────────────────────────────────────
   Progress
───────────────────────────────────── */
.progress-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.progress-track {
  height: 7px;
  background: rgba(0,0,0,0.08);
  border-radius: 100px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0;
  background: var(--ci);
  border-radius: 100px;
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1), background 0.45s ease;
}

.progress-info {
  font-size: 0.77rem;
  color: var(--ci-dark);
  opacity: 0.55;
  letter-spacing: 1px;
  text-align: right;
  transition: color 0.45s ease;
}

/* ─────────────────────────────────────
   Buttons
───────────────────────────────────── */
.actions { display: flex; gap: 0.8rem; }

.btn {
  padding: 0.9rem 2rem;
  border: none;
  border-radius: 100px;
  font-family: 'Kanit', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: transform 0.2s, box-shadow 0.2s, background 0.45s ease, color 0.45s ease, border-color 0.45s ease;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content:''; position:absolute; inset:0;
  background:rgba(255,255,255,0); transition:background 0.15s; border-radius:inherit;
}
.btn:hover::after { background:rgba(255,255,255,0.15); }
.btn:active { transform:scale(0.95) !important; box-shadow:none !important; }

.btn--draw, .btn--replay {
  background: var(--ci);
  color: #fff;
  box-shadow: 0 6px 22px rgba(0,0,0,0.18);
}
.btn--draw:hover, .btn--replay:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.24);
}

.btn--next-cat {
  background: #fff;
  color: var(--ci-dark);
  border: 2px solid var(--ci);
  box-shadow: 0 4px 14px rgba(0,0,0,0.1);
}
.btn--next-cat:hover { transform:translateY(-3px); background:var(--ci-light); }

.hidden { display: none !important; }

/* ─────────────────────────────────────
   Sparkles
───────────────────────────────────── */
#sparklesContainer { position:fixed; inset:0; pointer-events:none; z-index:20; }

.sp {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  animation: sparkOut var(--dur,0.9s) ease-out forwards;
}

@keyframes sparkOut {
  0%   { transform:translate(0,0) scale(1.3); opacity:1; }
  100% { transform:translate(var(--tx),var(--ty)) scale(0); opacity:0; }
}

/* ─────────────────────────────────────
   End Screen
───────────────────────────────────── */
.end-screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn { from{opacity:0} to{opacity:1} }

.end-card {
  background: #fff;
  border: 3px solid var(--ci);
  border-radius: 28px;
  padding: 2.6rem 2.8rem;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,0.14);
  animation: popIn 0.5s cubic-bezier(0.34,1.56,0.64,1);
  max-width: 320px;
  width: 90%;
  transition: border-color 0.45s ease;
}

@keyframes popIn {
  from { transform:scale(0.35) rotate(-8deg); opacity:0; }
  to   { transform:scale(1)    rotate(0deg);  opacity:1; }
}

.end-emoji {
  font-size: 4.5rem;
  display: block;
  margin-bottom: 0.8rem;
  animation: wiggle 0.7s ease infinite alternate;
}

@keyframes wiggle {
  from { transform:rotate(-12deg); }
  to   { transform:rotate(12deg);  }
}

.end-title { font-size:1.65rem; font-weight:800; color:var(--ci-dark); margin-bottom:0.4rem; transition:color 0.45s; }
.end-sub   { color:rgba(0,0,0,0.45); font-size:0.93rem; }
.end-sub b { color:var(--ci-dark); }

.end-next-hint {
  font-size: 0.85rem;
  color: var(--ci-dark);
  opacity: 0.65;
  margin-top: 0.5rem;
}

.end-actions { display:flex; flex-direction:column; gap:0.75rem; margin-top:1.5rem; }
