:root{
  --bg:#fff6fb;
  --card:#ffffff;
  --ink:#111827;
  --muted:#6b7280;
  --border:rgba(31,41,55,.12);

  --pink:#ff4fa3;
  --pink2:#ff7ac7;
  --yellow:#ffd93d;
  --blue:#4cc9f0;
  --blue2:#2b8cff;
  --green:#4ade80;
  --purple:#9b5de5;
  --orange:#ff9f1c;

  --shadow: 0 16px 30px rgba(0,0,0,.10);
}

*{box-sizing:border-box}
html, body{height:100%}
body{
  margin:0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color:var(--ink);
  background:radial-gradient(1200px 600px at 10% 10%, rgba(255,79,163,.18), transparent 60%),
             radial-gradient(1100px 600px at 90% 20%, rgba(76,201,240,.18), transparent 60%),
             linear-gradient(180deg,var(--bg), #ffffff 55%);
}

a{color:inherit}
.container{max-width:1050px;margin:0 auto;padding:18px}
.nav{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px;border-bottom:1px solid var(--border);
  background:rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  position:sticky; top:0; z-index:10;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:900}
.badge{
  font-size:12px;padding:4px 10px;border:1px solid var(--border);
  border-radius:999px;color:var(--muted);background:#fff;
}
.links{display:flex;gap:10px;flex-wrap:wrap}
.links a{
  text-decoration:none; padding:9px 12px;
  border-radius:999px;
  border:1px solid rgba(17,24,39,.10);
  background:linear-gradient(180deg,#fff,#fafafa);
  box-shadow: 0 6px 14px rgba(0,0,0,.06);
  font-weight:800;
}
.links a:hover{transform:translateY(-1px); transition:.15s ease}

.hero{padding:26px 18px 10px}
.hero h1{margin:0 0 8px;font-size:36px;line-height:1.05; letter-spacing:-.02em}
.hero p{margin:0;color:var(--muted);font-size:16px;max-width:75ch}

.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));padding:18px}
.card{
  background:linear-gradient(180deg,#fff, #fff);
  border:1px solid var(--border);
  border-radius:18px;
  padding:16px;
  box-shadow: var(--shadow);
  position:relative;
  overflow:hidden;
}
.card::before{
  content:"";
  position:absolute; inset:-2px;
  background:radial-gradient(600px 250px at 20% 0%, rgba(255,79,163,.18), transparent 60%),
             radial-gradient(600px 250px at 80% 0%, rgba(76,201,240,.18), transparent 60%);
  pointer-events:none;
}
.card > *{position:relative}
.card h2{margin:0 0 6px;font-size:18px}
.card p{margin:0 0 12px;color:var(--muted);line-height:1.45}
.card .meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.pill{
  font-size:12px;padding:4px 10px;border-radius:999px;
  border:1px solid rgba(17,24,39,.12);
  color:rgba(17,24,39,.72);
  background:#fff;
  font-weight:800;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 14px;border-radius:14px;border:0;
  background:linear-gradient(90deg,var(--pink), var(--purple));
  color:white;text-decoration:none;font-weight:900;
  box-shadow: 0 12px 22px rgba(255,79,163,.18);
  transition:transform .12s ease, filter .12s ease;
}
.btn:hover{transform:translateY(-1px) scale(1.02); filter:brightness(1.02)}
.btn.secondary{
  background:linear-gradient(90deg,#fff,#fafafa);
  color:var(--ink);
  border:1px solid rgba(17,24,39,.12);
  box-shadow: 0 10px 18px rgba(0,0,0,.06);
}

.footer{padding:26px 18px;color:var(--muted);text-align:center}
hr.sep{border:none;border-top:1px solid var(--border);margin:18px 0}

.game-wrap{padding:18px}
.game-title{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;flex-wrap:wrap}
.game-title h1{margin:0;font-size:28px;letter-spacing:-.02em}
.game-title p{margin:6px 0 0;color:var(--muted);max-width:75ch;line-height:1.45}

.panel{
  margin-top:14px;
  background:rgba(255,255,255,.92);
  border:1px solid rgba(17,24,39,.12);
  border-radius:18px;
  padding:14px;
  box-shadow: 0 12px 20px rgba(0,0,0,.06);
}

.row{display:flex;gap:12px;flex-wrap:wrap}
.col{flex:1;min-width:250px}

.kbd{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size:12px; padding:4px 8px;border:1px solid rgba(17,24,39,.14);
  border-radius:10px;background:#f9fafb;color:#111827;
  font-weight:700;
}

.notice{
  padding:12px;
  border:1px solid rgba(255,79,163,.25);
  background:linear-gradient(90deg, rgba(255,79,163,.10), rgba(76,201,240,.10));
  border-radius:18px;
  font-weight:800;
}

.big{font-size:18px;font-weight:1000}
.small{font-size:13px;color:var(--muted);line-height:1.45}

/* GAME CHOICES — more colorful */
.quiz{
  display:grid;
  gap:12px;
  grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  margin-top:12px;
}

.choice{
  border-radius:20px;
  padding:16px;
  font-size:18px;
  font-weight:1000;
  background:linear-gradient(135deg,var(--blue), var(--purple));
  color:white;
  border:0;
  box-shadow: 0 16px 22px rgba(0,0,0,.12);
  transition:transform .15s ease, box-shadow .15s ease, filter .15s ease;
  cursor:pointer;
}
.choice:hover{
  transform:translateY(-2px) scale(1.03);
  box-shadow: 0 22px 30px rgba(0,0,0,.18);
  filter:saturate(1.05);
}
.choice.correct{
  background:linear-gradient(135deg,var(--green), var(--yellow));
  color:#14532d;
}
.choice.wrong{
  background:linear-gradient(135deg,#ff4d4d,#ff8a8a);
  color:#7f1d1d;
}

@keyframes pop {
  0%{transform:scale(1)}
  45%{transform:scale(1.12)}
  100%{transform:scale(1)}
}
.choice.correct{animation:pop .35s ease}

/* DRAG & DROP — chunkier + kid friendly */
.draggables{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}
.drag{
  width:86px;height:86px;border:0;border-radius:22px;
  background:linear-gradient(135deg,var(--yellow), var(--pink2));
  display:flex;align-items:center;justify-content:center;
  font-weight:1000; cursor:grab;
  box-shadow: 0 16px 24px rgba(0,0,0,.12);
  user-select:none;
  transition:transform .12s ease, filter .12s ease;
  font-size:34px;
}
.drag:active{cursor:grabbing;transform:scale(1.02)}
.drag:hover{transform:translateY(-1px) scale(1.03); filter:saturate(1.05)}

.dropzones{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}
.drop{
  width:104px;height:104px;border:3px dashed rgba(17,24,39,.28);
  border-radius:24px;
  display:flex;align-items:center;justify-content:center;
  color:rgba(17,24,39,.55);
  font-weight:1000;
  background:rgba(255,255,255,.75);
  font-size:34px;
}
.drop.good{
  border-color:rgba(34,197,94,.70);
  background:rgba(34,197,94,.10);
  color:#14532d;
}
.drop.bad{
  border-color:rgba(239,68,68,.70);
  background:rgba(239,68,68,.10);
  color:#7f1d1d;
}

/* CONFETTI layer */
.confetti{
  position:fixed;
  inset:0;
  pointer-events:none;
  overflow:hidden;
  z-index:9999;
}
.confetti i{
  position:absolute;
  width:10px;
  height:14px;
  border-radius:3px;
  opacity:.95;
  transform:translateY(-20px) rotate(0deg);
  animation: confetti-fall 900ms ease-out forwards;
}
@keyframes confetti-fall{
  to{
    transform:translateY(110vh) rotate(540deg);
    opacity:0.95;
  }
}

/* PAGE THEMES */
body.theme-home{
  background:radial-gradient(1200px 650px at 15% 10%, rgba(255,79,163,.22), transparent 60%),
             radial-gradient(1100px 650px at 85% 15%, rgba(76,201,240,.22), transparent 60%),
             linear-gradient(180deg,#fff0fa,#ffffff 55%);
}
body.theme-shapes{
  background:radial-gradient(1000px 650px at 15% 10%, rgba(255,217,61,.26), transparent 60%),
             radial-gradient(1000px 650px at 85% 15%, rgba(255,79,163,.22), transparent 60%),
             linear-gradient(180deg,#fff7e6,#ffffff 55%);
}
body.theme-alphabet{
  background:radial-gradient(1000px 650px at 15% 10%, rgba(76,201,240,.26), transparent 60%),
             radial-gradient(1000px 650px at 85% 15%, rgba(155,93,229,.22), transparent 60%),
             linear-gradient(180deg,#eef9ff,#ffffff 55%);
}
body.theme-numbers{
  background:radial-gradient(1000px 650px at 15% 10%, rgba(74,222,128,.24), transparent 60%),
             radial-gradient(1000px 650px at 85% 15%, rgba(255,159,28,.20), transparent 60%),
             linear-gradient(180deg,#effff4,#ffffff 55%);
}
body.theme-story{
  background:radial-gradient(1000px 650px at 15% 10%, rgba(255,79,163,.20), transparent 60%),
             radial-gradient(1000px 650px at 85% 15%, rgba(255,217,61,.22), transparent 60%),
             linear-gradient(180deg,#fff3fb,#ffffff 55%);
}
body.theme-patterns{
  background:radial-gradient(1000px 650px at 15% 10%, rgba(155,93,229,.24), transparent 60%),
             radial-gradient(1000px 650px at 85% 15%, rgba(76,201,240,.20), transparent 60%),
             linear-gradient(180deg,#f6f0ff,#ffffff 55%);
}
body.theme-parents{
  background:radial-gradient(1200px 650px at 15% 10%, rgba(76,201,240,.20), transparent 60%),
             radial-gradient(1100px 650px at 85% 15%, rgba(74,222,128,.18), transparent 60%),
             linear-gradient(180deg,#f1fff6,#ffffff 55%);
}

h3{margin:14px 0 6px; font-size:15px; letter-spacing:-.01em}
ul{margin:8px 0 0 18px; color:var(--muted)}
li{margin:6px 0}

@media (max-width:520px){
  .hero h1{font-size:30px}
  .choice{font-size:16px}
}