.lb-app{
  --lb-bg:#EAF6FF; --lb-bg2:#DCEEFF; --lb-card:#FFFFFF; --lb-ink:#1B3B6F; --lb-ink-soft:#5578A6;
  --lb-accent:#FFB800; --lb-accent-dark:#DE9E00; --lb-success:#06D6A0; --lb-success-dark:#049C79;
  --lb-danger:#FF6B6B; --lb-danger-dark:#E14C4C; --lb-block-shadow:#C7D9EE;
  font-family:'Nunito',sans-serif; color:var(--lb-ink); max-width:560px; margin:24px auto;
}
.lb-app *{ box-sizing:border-box; }
@media (prefers-reduced-motion: reduce){ .lb-app *{ animation-duration:.001ms !important; transition-duration:.001ms !important; } }
.lb-app h2,.lb-app h3{ font-family:'Baloo 2',sans-serif; margin:0 0 6px; }
.lb-hidden{ display:none !important; }
.lb-card{ background:var(--lb-card); border-radius:22px; padding:26px; box-shadow:0 8px 0 var(--lb-block-shadow); }
.lb-loading{ text-align:center; color:var(--lb-ink-soft); padding:30px; }
.lb-muted{ color:var(--lb-ink-soft); font-size:14px; margin:0 0 16px; }

.lb-setup-grid{ display:flex; gap:14px; flex-wrap:wrap; margin:18px 0 22px; }
.lb-count-btn{ flex:1; min-width:100px; background:#fff; border:3px solid var(--lb-bg2); border-radius:16px; padding:18px 10px; font-family:'Baloo 2',sans-serif; font-size:22px; font-weight:700; color:var(--lb-ink); cursor:pointer; box-shadow:0 5px 0 var(--lb-block-shadow); transition:transform .08s; }
.lb-count-btn small{ display:block; font-family:'Nunito'; font-size:12px; font-weight:600; color:var(--lb-ink-soft); margin-top:4px; }
.lb-count-btn.lb-selected{ border-color:var(--lb-accent); background:#FFF7E3; }
.lb-count-btn:disabled{ opacity:.4; cursor:not-allowed; }
.lb-count-btn:active:not(:disabled){ transform:translateY(3px); box-shadow:0 2px 0 var(--lb-block-shadow); }

.lb-big-btn{ display:block; width:100%; font-family:'Baloo 2',sans-serif; font-size:20px; font-weight:700; color:#fff; background:var(--lb-accent); border:none; border-radius:16px; padding:16px; cursor:pointer; box-shadow:0 6px 0 var(--lb-accent-dark); transition:transform .08s; }
.lb-big-btn:active{ transform:translateY(4px); box-shadow:0 2px 0 var(--lb-accent-dark); }
.lb-big-btn:disabled{ background:#C9D6E5; box-shadow:0 6px 0 #AEC0D6; cursor:not-allowed; }

.lb-progress-row{ display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; font-family:'Baloo 2',sans-serif; font-weight:700; color:var(--lb-ink-soft); }
.lb-progress-bar{ height:10px; background:var(--lb-bg2); border-radius:6px; overflow:hidden; margin-bottom:22px; }
.lb-progress-fill{ height:100%; background:var(--lb-accent); border-radius:6px; transition:width .3s ease; }
.lb-pic-frame{ width:100%; max-width:280px; aspect-ratio:1/1; margin:0 auto 22px; background:var(--lb-bg2); border-radius:20px; display:flex; align-items:center; justify-content:center; overflow:hidden; font-size:90px; }
.lb-pic-frame img{ width:100%; height:100%; object-fit:contain; }
.lb-word-row{ display:flex; justify-content:center; gap:8px; margin-bottom:26px; flex-wrap:wrap; }
.lb-letter-tile{ width:46px; height:52px; background:#fff; border:3px solid var(--lb-bg2); border-radius:10px; display:flex; align-items:center; justify-content:center; font-family:'Caveat',cursive; font-size:34px; font-weight:700; }
.lb-letter-tile.lb-blank{ border-style:dashed; border-color:var(--lb-ink-soft); color:transparent; }
.lb-letter-tile.lb-filled-correct{ background:var(--lb-success); border-color:var(--lb-success-dark); color:#fff; }
.lb-letter-tile.lb-filled-wrong{ background:var(--lb-danger); border-color:var(--lb-danger-dark); color:#fff; }
.lb-options-row{ display:grid; grid-template-columns:repeat(4,1fr); gap:12px; }
.lb-opt-block{ aspect-ratio:1/1; background:#fff; border:none; border-radius:14px; box-shadow:0 6px 0 var(--lb-block-shadow); font-family:'Caveat',cursive; font-size:42px; font-weight:700; color:var(--lb-ink); cursor:pointer; transition:transform .08s; }
.lb-opt-block:active:not(:disabled){ transform:translateY(4px); box-shadow:0 2px 0 var(--lb-block-shadow); }
.lb-opt-block:disabled{ cursor:not-allowed; }
.lb-opt-block.lb-correct{ background:var(--lb-success); color:#fff; box-shadow:0 6px 0 var(--lb-success-dark); }
.lb-opt-block.lb-wrong{ background:var(--lb-danger); color:#fff; box-shadow:0 6px 0 var(--lb-danger-dark); }
.lb-skip-btn{ display:block; width:100%; margin-top:14px; background:transparent; border:2px dashed var(--lb-ink-soft); border-radius:12px; padding:11px; font-family:'Nunito',sans-serif; font-size:14px; font-weight:700; color:var(--lb-ink-soft); cursor:pointer; }
.lb-skip-btn:hover:not(:disabled){ background:var(--lb-bg2); }
.lb-skip-btn:disabled{ opacity:.4; cursor:not-allowed; }
.lb-letter-tile.lb-filled-skip{ background:var(--lb-bg2); border-color:var(--lb-ink-soft); color:var(--lb-ink); }
.lb-feedback.lb-skip{ color:var(--lb-ink-soft); }
.lb-feedback{ text-align:center; min-height:30px; font-family:'Baloo 2',sans-serif; font-size:18px; font-weight:700; margin-top:18px; }
.lb-feedback.lb-correct{ color:var(--lb-success-dark); }
.lb-feedback.lb-wrong{ color:var(--lb-danger-dark); }
.lb-next-wrap{ margin-top:14px; }

.lb-result-score{ font-family:'Baloo 2',sans-serif; font-size:52px; text-align:center; color:var(--lb-accent-dark); margin:10px 0; }
.lb-result-sub{ text-align:center; color:var(--lb-ink-soft); margin-bottom:22px; }
.lb-count-note{ font-size:13px; color:var(--lb-ink-soft); margin-top:4px; }

.lb-app button:focus-visible{ outline:3px solid var(--lb-ink); outline-offset:2px; }