.variant-page .content-page{max-width:1180px}.variant-app{flex-direction:column;gap:18px;display:flex}.variant-header{border-bottom:1px solid #cbd5e1;justify-content:space-between;align-items:end;gap:24px;padding-bottom:16px;display:flex}.variant-header h1{margin:0}.variant-eyebrow{color:#047857;letter-spacing:.08em;text-transform:uppercase;margin:0 0 4px;font-size:.75rem;font-weight:800}.variant-summary{color:#475569;max-width:560px;margin:0;font-size:.95rem;line-height:1.55}.variant-tabs{background:#f1f5f9;border:1px solid #cbd5e1;border-radius:8px;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;padding:4px;display:grid}.variant-tabs .variant-tab{color:#334155;letter-spacing:0;text-transform:none;background:0 0;border:0;border-radius:5px;min-width:0;padding:10px 12px;font-size:.86rem;font-weight:750}.variant-tabs .variant-tab:hover{background:#fff}.variant-tabs .variant-tab.is-active{color:#fff;background:#0f172a;box-shadow:0 1px 3px #0f172a40}.variant-toolbar{justify-content:space-between;align-items:center;gap:16px;display:flex}.variant-actions{gap:8px;margin-left:auto;display:flex}.variant-actions button{color:#1e293b;letter-spacing:0;text-transform:none;background:#fff;border:1px solid #94a3b8;border-radius:6px;min-width:0;padding:9px 13px;font-size:.82rem}.variant-actions button:hover{background:#f8fafc;border-color:#64748b}.variant-actions .variant-action-primary{color:#fff;background:#047857;border-color:#047857}.variant-actions .variant-action-primary:hover{background:#065f46}.mini-size-control{color:#334155;align-items:center;gap:8px;font-size:.82rem;font-weight:700;display:flex}.mini-size-control select{color:#0f172a;background-color:#fff;border:1px solid #94a3b8;border-radius:6px;min-width:96px;padding:7px 28px 7px 9px}.variant-workspace{grid-template-columns:minmax(0,1fr) 280px;align-items:start;gap:24px;display:grid}.variant-board-region{min-width:0}.variant-board-scroller{width:100%;padding:2px 2px 8px;overflow-x:auto}.variant-board{--variant-size:9;grid-template-columns:repeat(var(--variant-size), minmax(0, 1fr));aspect-ratio:1;background:#0f172a;border:3px solid #0f172a;width:min(100%,680px);margin:0 auto;display:grid}.variant-board.is-mini-4{width:min(100%,460px)}.variant-board.is-mini-6{width:min(100%,560px)}.variant-cell{aspect-ratio:1;background:#fff;border:1px solid #94a3b8;justify-content:center;align-items:center;min-width:0;display:flex;position:relative}.variant-cell.box-right{border-right:3px solid #0f172a}.variant-cell.box-bottom{border-bottom:3px solid #0f172a}.variant-cell.diagonal-main{background:#ecfdf5}.variant-cell.diagonal-anti{background:#fff7ed}.variant-cell.diagonal-main.diagonal-anti{background:#fef3c7}.variant-cell input{z-index:2;color:#0f172a;text-align:center;background:0 0;border:0;border-radius:0;outline:none;width:100%;height:100%;padding:0;font-size:clamp(.95rem,3.3vw,1.6rem);font-weight:700;position:relative}.variant-cell input:focus{box-shadow:inset 0 0 0 2px #0284c7}.variant-cell.is-given input{color:#0f172a;cursor:not-allowed;background:#e2e8f0d1}.variant-board.is-sudoku-x .variant-cell.diagonal-main{background:#a7f3d0;box-shadow:inset 0 0 0 2px #059669}.variant-board.is-sudoku-x .variant-cell.diagonal-anti{background:#fed7aa;box-shadow:inset 0 0 0 2px #ea580c}.variant-board.is-sudoku-x .variant-cell.diagonal-main.diagonal-anti{background:#fde68a;box-shadow:inset 0 0 0 2px #ca8a04}.variant-board.is-sudoku-x .variant-cell.is-given.diagonal-main input{background:#a7f3d0d1}.variant-board.is-sudoku-x .variant-cell.is-given.diagonal-anti input{background:#fed7aad1}.variant-board.is-sudoku-x .variant-cell.is-given.diagonal-main.diagonal-anti input{background:#fde68adb}.variant-cell.is-revealed input{color:#047857}.variant-cell.is-conflict input,.variant-cell.is-error input{color:#b91c1c;background:#fee2e2}.variant-cell.cage-top{border-top:2px dashed #7c3aed}.variant-cell.cage-right{border-right:2px dashed #7c3aed}.variant-cell.cage-bottom{border-bottom:2px dashed #7c3aed}.variant-cell.cage-left{border-left:2px dashed #7c3aed}.variant-cell.box-right.cage-right{border-right:3px solid #0f172a}.variant-cell.box-bottom.cage-bottom{border-bottom:3px solid #0f172a}.cage-sum{z-index:3;color:#5b21b6;pointer-events:none;font-size:clamp(.48rem,1.25vw,.68rem);font-weight:800;line-height:1;position:absolute;top:1px;left:3px}.variant-board.is-samurai{--variant-size:21;background:0 0;border-width:2px;width:720px;min-width:720px;position:relative}.variant-board.is-samurai .variant-cell{border-color:#cbd5e1}.variant-board.is-samurai .variant-cell.samurai-edge-top{border-top:2px solid #0f172a}.variant-board.is-samurai .variant-cell.samurai-edge-right{border-right:2px solid #0f172a}.variant-board.is-samurai .variant-cell.samurai-edge-bottom{border-bottom:2px solid #0f172a}.variant-board.is-samurai .variant-cell.samurai-edge-left{border-left:2px solid #0f172a}.variant-board.is-samurai .variant-cell input{font-size:.78rem}.variant-status{color:#475569;text-align:center;min-height:24px;margin:8px 0 0;font-size:.9rem;font-weight:700}.variant-status.is-success{color:#047857}.variant-status.is-error{color:#b91c1c}.variant-rules{border-left:1px solid #cbd5e1;padding-left:20px}.variant-rules h2{color:#0f172a;margin:0 0 8px;font-size:1.2rem}.variant-rules p{color:#475569;margin:0;font-size:.9rem;line-height:1.55}.variant-rules ul{color:#334155;gap:8px;margin:16px 0 0;padding-left:18px;font-size:.86rem;line-height:1.45;display:grid}.variant-legend{color:#475569;border-top:1px solid #e2e8f0;gap:8px;margin-top:18px;padding-top:14px;font-size:.8rem;display:grid}.legend-row{align-items:center;gap:8px;display:flex}.legend-swatch{background:#fff;border:1px solid #94a3b8;width:18px;height:18px}.legend-swatch.diagonal{background:linear-gradient(135deg,#a7f3d0 0 48%,#fed7aa 52% 100%);border-color:#64748b}.legend-swatch.cage{border:2px dashed #7c3aed}.legend-swatch.overlap{background:#fef3c7}@media (width<=900px){.variant-workspace{grid-template-columns:1fr}.variant-rules{border-top:1px solid #cbd5e1;border-left:0;padding:16px 0 0}}@media (width<=640px){.variant-header{gap:8px;display:grid}.variant-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.variant-toolbar{flex-direction:column;align-items:stretch}.variant-actions{grid-template-columns:repeat(2,minmax(0,1fr));margin-left:0;display:grid}.variant-actions button{width:100%}.mini-size-control{justify-content:space-between}.variant-board.is-samurai{width:630px;min-width:630px}.variant-board.is-samurai .variant-cell input{font-size:.7rem}}