:root{--primary: #2563eb;--secondary: #64748b;--danger: #ef4444;--success: #22c55e;--warning: #f59e0b;--bg-grid: #f8fafc;--border-color: #e2e8f0;--radius: 8px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,sans-serif;background-color:#f1f5f9;color:#1e293b;margin:0;padding:20px}.sewdoku-app{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:24px}h1{text-align:center;margin-bottom:8px;font-weight:800}.controls{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;background:#fff;padding:16px;border-radius:var(--radius);box-shadow:0 1px 3px #0000001a}.sudoku-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;background:#fff;padding:16px;border-radius:12px;box-shadow:0 4px 15px #0000000d;width:100%;box-sizing:border-box}.slot{aspect-ratio:1 / 1;background:var(--bg-grid);border:2px solid var(--border-color);border-radius:6px;position:relative;overflow:hidden;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center}.slot:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 12px #2563eb26}.placeholder{font-size:1.5rem;font-weight:300;color:#cbd5e1}.item-preview{width:100%;height:100%;object-fit:cover;display:block}.cat-label{position:absolute;top:4px;left:4px;font-size:9px;font-weight:700;text-transform:uppercase;background:#ffffffe6;color:#64748b;padding:2px 6px;border-radius:4px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:10;pointer-events:none}.swap-source{border:3px solid var(--warning)!important;box-shadow:0 0 0 4px #f59e0b33}.swap-highlight{border:3px dashed var(--success)!important;animation:pulse 2s infinite ease-in-out}@keyframes pulse{0%,to{background-color:transparent}50%{background-color:#22c55e1a}}.valid-drop-zone{border:2px solid var(--success)!important;background:#22c55e0d}.sortable-ghost{opacity:.3;transform:scale(.9)}.sortable-drag{cursor:grabbing!important}.menu-overlay{position:fixed;inset:0;background:#0f172abf;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;justify-content:center;align-items:center;z-index:10000;padding:20px}.menu-content{background:#fff;width:100%;max-width:320px;padding:24px;border-radius:16px;box-shadow:0 20px 25px -5px #0000001a}.menu-buttons{display:flex;flex-direction:column;gap:8px}.btn{padding:10px 16px;border:none;border-radius:var(--radius);font-weight:600;cursor:pointer;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:#1d4ed8}.btn-danger{background:#fee2e2;color:var(--danger)}.btn-danger:hover{background:var(--danger);color:#fff}.btn-secondary{background:#f1f5f9;color:var(--secondary)}.closet-section{margin-top:20px;background:#fff;padding:24px;border-radius:12px}.tabs{display:flex;gap:8px;border-bottom:2px solid var(--border-color);margin-bottom:20px;overflow-x:auto}.tab-btn{padding:8px 16px;border:none;background:none;font-weight:600;color:var(--secondary);cursor:pointer}.tab-btn.active{color:var(--primary);border-bottom:2px solid var(--primary)}.closet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px}.closet-item-card{position:relative;aspect-ratio:1/1;border-radius:6px;overflow:hidden;cursor:grab;border:2px solid transparent;transition:transform .1s}.closet-item-card:hover{border-color:var(--primary)}.closet-item-card:active{cursor:grabbing}.closet-item-card img{width:100%;height:100%;object-fit:cover;pointer-events:none}.library-add-card{aspect-ratio:1/1;border:2px dashed var(--border-color);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--secondary)}.delete-btn{position:absolute;top:4px;right:4px;width:22px;height:22px;background:var(--danger);color:#fff;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;opacity:0;transition:opacity .2s;z-index:20}.closet-item-card:hover .delete-btn{opacity:1}.sudoku-grid.printing{gap:2px;padding:0}.sudoku-grid.printing .slot{border-radius:0;border:1px solid #000;transform:none!important;box-shadow:none!important}.sudoku-grid.printing .cat-label,.sudoku-grid.printing .placeholder{display:none!important}.slot .closet-item-card{width:100%;height:100%;border:none;border-radius:0}.slot .item-preview{width:100%;height:100%;object-fit:cover}.icon{margin-right:8px;font-size:1.2rem;vertical-align:middle}.menu-buttons button{display:flex;align-items:center;justify-content:center;gap:10px;padding:14px}.closet-grid{max-height:300px;overflow-y:auto;padding:10px;background:var(--bg-grid);border-radius:var(--radius)}.in-use-badge{position:absolute;bottom:0;left:0;right:0;background:#2563ebe6;color:#fff;font-size:10px;font-weight:700;text-align:center;padding:2px 0;text-transform:uppercase;pointer-events:none}.item-in-use{opacity:.7;filter:grayscale(.3)}.item-in-use:after{content:"✓";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:2rem;color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.3);pointer-events:none}#undo-btn{background:#f1f5f9;border:1px solid var(--border-color);font-weight:800}#undo-btn:disabled{opacity:.5;cursor:not-allowed}body.view-fit-mode{overflow:hidden!important;height:100dvh;width:100vw;margin:0!important;padding:0!important}body.view-fit-mode .sewdoku-app{height:100dvh;width:100vw;max-width:100%;display:flex;flex-direction:column;padding:8px;box-sizing:border-box;gap:8px}body.view-fit-mode h1,body.view-fit-mode .closet-section{display:none!important}body.view-fit-mode .sudoku-grid{flex:1 1 auto;min-height:0;margin:0 auto;width:auto;height:auto;max-width:100%;max-height:calc(100dvh - 120px);aspect-ratio:1 / 1;display:grid;padding:8px}body.view-fit-mode .controls{flex:0 0 auto;width:100%;padding:12px;background:#fff;border-top:1px solid var(--border-color);box-shadow:0 -4px 10px #0000000d;display:flex;justify-content:center;align-items:center;z-index:1001}.sudoku-grid.printing{display:grid!important;grid-template-columns:repeat(5,200px)!important;grid-template-rows:repeat(5,200px)!important;gap:10px!important;width:1040px!important;height:1040px!important;border:none!important;padding:0!important;margin:0!important}.sudoku-grid.printing .cat-label{display:block!important;background:#fffc!important}