:root{
  --ground:#CDE7F0;
  --ink:#233A48;
  --muted:#5B7483;
  --paper:#FFFFFF;
  --line:rgba(35,58,72,.14);
  --accent:#FF8A3D;
  --accent-dark:#D96A1F;
  --good:#2DB75A;
  --font:"Baloo 2", "Comic Sans MS", "Segoe UI", system-ui, sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{background:var(--ground)}
body{
  margin:0;color:var(--ink);font:16px/1.35 var(--font);padding-inline:16px;padding-block:10px 12px;-webkit-tap-highlight-color:transparent;overscroll-behavior:none;
  background-color:var(--ground);
  background-image:radial-gradient(rgba(35,58,72,.07) 2px, transparent 2px);background-size:26px 26px;
}
.app{max-width:1200px;margin-inline:auto;height:calc(100vh - 22px);height:calc(100dvh - 22px);min-height:460px;display:grid;grid-template-rows:auto auto 1fr;gap:10px}

.bar{display:flex;align-items:center;justify-content:space-between;gap:12px}
.back{color:var(--ink);text-decoration:none;font-weight:700;font-size:15px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.85)}
.title{margin:0;font-weight:800;font-size:clamp(1.3rem,3.6vw,1.9rem)}
.icon-btn{width:44px;height:44px;border-radius:50%;border:0;background:rgba(255,255,255,.85);display:grid;place-items:center;cursor:pointer;color:var(--ink);padding:0;font-size:18px}
.icon-btn span{display:grid;place-items:center}
.icon-btn span[hidden]{display:none}
.icon-btn svg{width:24px;height:24px}
.icon-btn.light{background:#EEF4F7}
button{font:inherit;cursor:pointer}
:focus-visible{outline:4px solid var(--ink);outline-offset:3px}

.toolbar{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;align-items:center}
.tbtn{border:0;border-radius:16px;background:var(--paper);color:var(--ink);display:flex;align-items:center;gap:6px;padding:6px 14px;font-weight:800;box-shadow:0 4px 0 var(--line)}
.tbtn span{font-size:22px;line-height:1}
.tbtn[aria-pressed="true"]{background:#FFF0B8;box-shadow:0 4px 0 #E0C257}
.tbtn:active{transform:translateY(2px)}
.counts{display:flex;gap:4px;background:var(--paper);border-radius:16px;padding:4px;box-shadow:0 4px 0 var(--line)}
.cnt{width:46px;height:40px;border:0;border-radius:12px;background:transparent;font-weight:800;font-size:1.2rem;color:var(--muted)}
.cnt[aria-checked="true"]{background:var(--accent);color:#fff}

.table{position:relative;min-height:0;overflow:hidden;touch-action:none}
.board{position:absolute;background:var(--paper);border-radius:18px;box-shadow:0 10px 0 var(--line), 0 20px 40px rgba(35,58,72,.15);padding:10px}
.ghost{position:absolute;inset:10px;border-radius:8px;background-size:cover;opacity:.22;transition:opacity .2s}
.ghost.off{opacity:0}
.slots{position:absolute;inset:10px;display:grid}
.slot{border:2px dashed rgba(35,58,72,.18);margin:-1px}
.slot.glow{background:rgba(255,138,61,.28);border:3px solid var(--accent)}

.piece{
  position:absolute;border-radius:6px;background-repeat:no-repeat;cursor:grab;touch-action:none;
  box-shadow:0 6px 14px rgba(35,58,72,.28), inset 0 0 0 3px rgba(255,255,255,.7);
  transition:box-shadow .15s, transform .15s;will-change:left,top;
}
.piece.drag{cursor:grabbing;box-shadow:0 16px 30px rgba(35,58,72,.35), inset 0 0 0 3px #fff;transform:scale(1.06);z-index:50}
.piece.placed{cursor:default;box-shadow:none;border-radius:0;transition:left .15s, top .15s;z-index:1}
.piece.placed.pop{animation:pop .35s ease}
@keyframes pop{50%{transform:scale(1.08)}}
.piece:focus-visible{outline:4px solid var(--ink)}

.overlay{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding-inline:16px;padding-block:16px;background:rgba(35,58,72,.45);overflow-y:auto}
.overlay.clear{background:rgba(255,255,255,.2)}
.overlay[hidden]{display:none}
.sheet{width:100%;max-width:760px;background:var(--paper);border-radius:26px;padding:18px 20px 22px;display:grid;gap:14px;box-shadow:0 20px 50px rgba(35,58,72,.3)}
.sheet-head{display:flex;align-items:center;justify-content:space-between}
.sheet h2{margin:0;font-weight:800;font-size:1.6rem}
.pic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.pic{position:relative;border:4px solid transparent;border-radius:18px;padding:0;overflow:hidden;background:#EEF4F7;display:grid}
.pic img{display:block;width:100%;aspect-ratio:1;object-fit:cover}
.pic b{position:absolute;left:0;right:0;bottom:0;background:rgba(255,255,255,.88);font-weight:800;padding:2px 0}
.pic .ok{position:absolute;top:6px;right:6px;background:var(--good);color:#fff;border-radius:999px;padding:0 8px;font-size:13px;font-weight:800}
.pic.current{border-color:var(--accent)}
.done-card{display:grid;justify-items:center;gap:16px;text-align:center}
.done-title{margin:0;font-weight:800;font-size:clamp(2.6rem,10vw,4.6rem);line-height:1;color:#fff;text-shadow:0 4px 0 var(--accent-dark), 0 10px 24px rgba(0,0,0,.25)}
.big-btn{width:130px;height:130px;border-radius:50%;border:8px solid #fff;background:var(--accent);box-shadow:0 10px 0 var(--accent-dark);display:grid;place-items:center;padding:0}
.big-btn svg{width:58%;height:58%}
.big-btn:active{transform:translateY(8px);box-shadow:0 2px 0 var(--accent-dark)}
.row{display:flex;gap:12px;justify-content:center}

#confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:70}
#confetti i{position:absolute;top:-20px;width:10px;height:6px;border-radius:2px;animation:fall linear forwards}
@keyframes fall{to{transform:translate(var(--dx), 110vh) rotate(var(--r))}}

@media (max-width:520px){
  .tbtn b{display:none}
  .tbtn{padding:6px 10px}
  .cnt{width:40px}
}
@media (prefers-reduced-motion:reduce){
  .piece,.piece.placed,.ghost{transition:none}
  .piece.placed.pop{animation:none}
}