* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: #0D1B2A;
  font-family: 'Nunito', sans-serif;
  color: #fff;
  min-height: 100vh;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  border-bottom: 2px solid rgba(255,255,255,0.08);
}

header h1 {
  font-family: 'Fredoka One', cursive;
  font-size: 2rem;
  color: #FFD93D;
}

.btn-back {
  color: #C77DFF;
  font-weight: 700;
  text-decoration: none;
  font-size: 1rem;
}
.btn-back:hover { color: #fff; }

.hud {
  font-family: 'Fredoka One', cursive;
  font-size: 1.4rem;
  color: #FFD93D;
}

/* ── Grid ── */
.grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding: 40px;
  justify-content: center;
}

.card {
  width: 160px;
  background: #1A2E45;
  border-radius: 20px;
  overflow: hidden;
  cursor: pointer;
  border: 3px solid transparent;
  transition: transform 0.15s, border-color 0.15s;
  position: relative;
}
.card:hover {
  transform: translateY(-6px) scale(1.04);
  border-color: #FFD93D;
}
.card.done {
  opacity: 0.4;
  pointer-events: none;
}
.card.done::after {
  content: '✅';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: rgba(13,27,42,0.6);
}

.card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  display: block;
}

.card-label {
  font-family: 'Fredoka One', cursive;
  font-size: 0.95rem;
  text-align: center;
  padding: 10px 8px;
  color: #fff;
}

.card-pieces {
  font-size: 0.75rem;
  color: #6BCB77;
  font-weight: 700;
  text-align: center;
  padding-bottom: 10px;
}