*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#fdf6ec;--card:#fff;--primary:#e07a5f;--primary-dark:#c05f45;--accent:#3d8b8b;--text:#3d405b;--radius:18px;--shadow:0 4px 14px #3d405b26}html,body{background:var(--bg);height:100%;color:var(--text);overscroll-behavior:none;-webkit-tap-highlight-color:transparent;font-family:Segoe UI,system-ui,-apple-system,sans-serif}button{color:inherit;cursor:pointer;background:0 0;border:none;font-family:inherit}.screen{flex-direction:column;height:100dvh;display:none;overflow:hidden}.screen.active{display:flex}.app-header{text-align:center;padding:5vh 20px 3vh}.app-header h1{font-size:clamp(2rem,5vw,3rem)}.app-header p{opacity:.75;margin-top:8px;font-size:1.3rem}.bar{background:var(--card);box-shadow:var(--shadow);z-index:5;align-items:center;gap:10px;padding:10px 14px;display:flex}.bar h2{white-space:nowrap;text-overflow:ellipsis;font-size:1.3rem;overflow:hidden}.bar-spacer{flex:1}.progress-chip{background:var(--bg);white-space:nowrap;border-radius:999px;padding:6px 14px;font-size:1rem;font-weight:700}.icon-btn{background:var(--bg);touch-action:manipulation;border-radius:14px;min-width:52px;min-height:52px;font-size:1.6rem;transition:transform .1s;box-shadow:0 2px 6px #3d405b1f}.icon-btn:active{transform:scale(.92)}.category-grid{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px;padding:10px 5vw 5vh;display:grid;overflow-y:auto}.category-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);touch-action:manipulation;flex-direction:column;align-items:center;gap:8px;padding:34px 20px;transition:transform .12s;display:flex}.category-card:active{transform:scale(.96)}.cat-icon{font-size:3.4rem}.cat-name{font-size:1.5rem;font-weight:700}.cat-count{opacity:.65;font-size:1rem}.preview-body{flex-wrap:wrap;flex:1;justify-content:center;align-items:center;gap:4vw;padding:3vh 5vw;display:flex;overflow:auto}.preview-main{text-align:center}#preview-img{aspect-ratio:1;object-fit:cover;border-radius:var(--radius);width:min(52vh,82vw,460px);box-shadow:var(--shadow);background:#ddd}#preview-name{margin-top:12px;font-size:1.5rem}.preview-side{flex-direction:column;gap:20px;max-width:460px;display:flex}.thumbs{flex-wrap:wrap;gap:12px;display:flex}.thumb{width:84px;height:84px;box-shadow:var(--shadow);touch-action:manipulation;border:3px solid #0000;border-radius:12px;position:relative;overflow:hidden}.thumb img{object-fit:cover;width:100%;height:100%;display:block}.thumb.selected{border-color:var(--primary)}.thumb-check{background:var(--accent);color:#fff;border-radius:50%;place-items:center;width:24px;height:24px;font-size:.9rem;display:grid;position:absolute;bottom:4px;right:4px}.level-buttons{flex-direction:column;gap:12px;display:flex}.level-btn{background:var(--primary);color:#fff;border-radius:var(--radius);box-shadow:var(--shadow);touch-action:manipulation;justify-content:space-between;align-items:center;gap:16px;padding:16px 22px;font-size:1.35rem;font-weight:700;transition:transform .1s;display:flex}.level-btn small{opacity:.9;white-space:nowrap;font-size:1.05rem;font-weight:400}.level-btn:active{transform:scale(.97)}.level-btn.done{background:var(--accent)}.tip{background:#fff5d7;border-radius:12px;padding:14px 16px;font-size:1.1rem;line-height:1.4}.game-body{flex:1;min-height:0;padding:10px;display:flex}#puzzle-viewport{border-radius:var(--radius);touch-action:none;background:#efe7da;flex:1;min-width:0;min-height:0;position:relative;overflow:hidden}#puzzle-container{position:absolute;inset:0}#peek-img{opacity:0;pointer-events:none;z-index:4;background-color:#00000059;background-position:50%;background-repeat:no-repeat;background-size:contain;transition:opacity .15s;position:absolute;inset:0}#peek-img.active{opacity:1}.zoom-controls{z-index:5;flex-direction:column;gap:10px;display:flex;position:absolute;bottom:12px;right:12px}.zoom-controls .icon-btn{background:var(--card)}#toast{background:var(--text);color:#fff;opacity:0;pointer-events:none;z-index:60;border-radius:14px;max-width:86vw;padding:14px 22px;font-size:1.1rem;transition:opacity .25s,transform .25s;position:fixed;bottom:24px;left:50%;transform:translate(-50%)translateY(20px)}#toast.active{opacity:.95;transform:translate(-50%)translateY(0)}#win-overlay{z-index:70;background:#3d405b8c;place-items:center;display:none;position:fixed;inset:0}#win-overlay.active{display:grid}.win-card{background:var(--card);text-align:center;z-index:2;border-radius:24px;flex-direction:column;gap:14px;max-width:88vw;padding:36px 42px;display:flex;box-shadow:0 12px 40px #0000004d}.win-emoji{font-size:4rem}.win-card h2{font-size:2rem}#win-stats{opacity:.75;font-size:1.15rem}.big-btn{border-radius:var(--radius);background:var(--bg);box-shadow:var(--shadow);touch-action:manipulation;padding:16px 24px;font-size:1.25rem;font-weight:700}.big-btn.primary{background:var(--primary);color:#fff}.big-btn:active{transform:scale(.97)}#confetti{pointer-events:none;position:absolute;inset:0;overflow:hidden}.confetti-piece{border-radius:3px;width:12px;height:12px;animation:linear infinite fall;position:absolute;top:-14px}@keyframes fall{to{transform:translateY(105vh)rotate(720deg)}}#loading{z-index:80;background:#fdf6ece6;place-items:center;display:none;position:fixed;inset:0}#loading.active{display:grid}#loading p{text-align:center;margin-top:14px;font-size:1.2rem}.spinner{border:6px solid #e8ddcc;border-top-color:var(--primary);border-radius:50%;width:54px;height:54px;margin:0 auto;animation:.9s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}