body {
  background: #fffaf0 url("../assets/국어교과서_배경.png") center / cover fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(1px);
}

.topbar { display: none; }
.progress-panel { justify-content: flex-end; }
.card { border-width: 1px; border-radius: 22px; background: rgba(255, 255, 255, 0.94); box-shadow: 0 16px 42px rgba(42, 81, 130, 0.1); }

@media (max-width: 680px) {
  .progress-panel { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
  .progress-panel > div { min-width: 0; padding: 8px 4px; }
  .progress-panel .mini-label { font-size: 12px; white-space: nowrap; }
  .progress-panel strong { font-size: 20px; }
}