:root{--gold:#c9a84c;--gold-dark:#a8893a;--gold-soft:#f3ead3;--blue:#5b7db1;--blue-light:#64b5f6;--blue-deep:#3f5c8a;--blue-soft:#e8eef7;--error:#e53935;--success:#4caf50;--bg:#fafaf7;--surface:#fff;--text:#2b2b33;--text-soft:#6b6b76;--border:#e3e3dd;--shadow:0 4px 16px #2b2b331a;--shadow-soft:0 2px 8px #2b2b330f;--radius:16px;--radius-sm:10px;--font:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}[data-theme=dark]{--bg:#17171f;--surface:#23232e;--text:#ecece6;--text-soft:#a0a0ae;--border:#3a3a48;--blue-soft:#2a3347;--gold-soft:#3b3323;--shadow:0 4px 16px #00000073;--shadow-soft:0 2px 8px #00000059}[data-theme=dark] .cell-candidate:hover{background:#38455f}[data-theme=dark] .level-node-locked{background:#2c2c37}[data-theme=dark] .difficulty-btn-done,[data-theme=dark] .world-card-badge-done{color:#7bc47f;background:#24382a}[data-theme=dark] .tutorial-done{color:#7bc47f}[data-theme=dark] .cell.error-confirmed{background:#3f2427}[data-theme=dark] .cell.error-eliminated{background:#3f3524}*{box-sizing:border-box}html,body{height:100%;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}#app{flex-direction:column;min-height:100dvh;display:flex}button{cursor:pointer;font-family:inherit}img{-webkit-user-drag:none;-webkit-user-select:none;user-select:none}.btn{border-radius:var(--radius-sm);border:none;padding:12px 24px;font-size:1rem;font-weight:600;transition:transform 80ms,box-shadow .15s,background-color .15s}.btn:active{transform:scale(.97)}.btn-primary{background:var(--gold);color:#fff;box-shadow:var(--shadow-soft)}.btn-primary:hover{background:var(--gold-dark)}.btn-secondary{background:var(--surface);color:var(--blue);border:2px solid var(--blue)}.btn-secondary:hover{background:var(--blue-soft)}.overlay-backdrop{z-index:100;background:#2b2b3373;justify-content:center;align-items:center;padding:16px;animation:.18s 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18px;font-size:.88rem}.ad-sim-progress{background:var(--blue-soft);border-radius:999px;height:8px;margin-bottom:16px;overflow:hidden}.ad-sim-progress-fill{background:var(--gold);border-radius:999px;width:0%;height:100%}.ad-sim-claim{width:100%}.ad-sim-claim:disabled{opacity:.55;cursor:default}.game-screen{flex-direction:column;flex:1;min-height:100dvh;display:flex}.game-topbar{z-index:10;background:var(--surface);border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:10px 16px;display:flex;position:sticky;top:0}.game-back{color:var(--blue);background:0 0;border:none;padding:4px 10px;font-size:1.3rem;font-weight:700}.game-title{color:var(--text);white-space:nowrap;text-overflow:ellipsis;flex:1;margin:0;font-size:.98rem;font-weight:800;overflow:hidden}.game-timer{font-variant-numeric:tabular-nums;color:var(--text-soft);font-size:.92rem}.game-stamps{background:var(--gold-soft);border-radius:999px;align-items:center;gap:5px;padding:4px 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var(--clue-scale,1));flex-wrap:wrap;justify-content:flex-start}.game-clues-h{--clue-square:calc(40px * var(--clue-scale,1));justify-content:flex-start}.game-main{flex:0 1 calc(500px * var(--grid-scale,1));min-width:340px;position:sticky;top:80px}}