.appContainer{width:100%;max-width:600px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:var(--space-md)}.loadingSpinner{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-xl);color:var(--color-text-secondary);font-size:var(--font-size-base)}._container_1f4sn_1{width:100%;max-width:520px;margin:0 auto;padding:var(--space-xl) var(--space-md);display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--space-xl)}._hero_1f4sn_13{display:flex;flex-direction:column;gap:var(--space-sm)}._title_1f4sn_19{font-size:var(--font-size-2xl);font-weight:700;letter-spacing:-.03em;color:var(--color-text-primary)}._tagline_1f4sn_26{font-size:var(--font-size-lg);font-weight:500;color:var(--color-accent)}._description_1f4sn_32{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.6;max-width:400px;margin:0 auto}._sectionCard_1f4sn_40{width:100%;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-lg);box-shadow:var(--shadow-subtle)}._controlGroup_1f4sn_52{display:flex;flex-direction:column;gap:var(--space-xs);align-items:flex-start;width:100%}._label_1f4sn_60{font-size:var(--font-size-sm);font-weight:600;color:var(--color-text-primary)}._segmentedControl_1f4sn_66{display:flex;width:100%;background-color:var(--color-background);padding:4px;border-radius:var(--radius-md);border:1px solid var(--color-border);gap:4px}._segmentButton_1f4sn_76{flex:1;padding:8px 12px;font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-secondary);border-radius:var(--radius-sm);transition:all .2s ease}._segmentButtonActive_1f4sn_86{background-color:var(--color-surface);color:var(--color-text-primary);font-weight:600;box-shadow:0 1px 2px #0000000d}._primaryButton_1f4sn_93{width:100%;padding:14px;font-size:var(--font-size-base);font-weight:600;background-color:var(--color-accent);color:#fff;border-radius:var(--radius-md);transition:background-color .2s}._primaryButton_1f4sn_93:hover:not(:disabled){background-color:var(--color-accent-hover)}._primaryButton_1f4sn_93:disabled{opacity:.5;cursor:not-allowed}._challengeBox_1f4sn_113{width:100%;border-top:1px dashed var(--color-border);padding-top:var(--space-md);display:flex;flex-direction:column;gap:var(--space-md)}._countSelector_1f4sn_122{display:flex;align-items:center;justify-content:space-between;width:100%}._countControl_1f4sn_129{display:flex;align-items:center;gap:var(--space-sm)}._countBtn_1f4sn_135{width:32px;height:32px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background-color:var(--color-surface);font-weight:600;font-size:var(--font-size-base);display:flex;align-items:center;justify-content:center}._countBtn_1f4sn_135:hover:not(:disabled){background-color:var(--color-surface-hover)}._countNumber_1f4sn_152{font-size:var(--font-size-lg);font-weight:600;width:36px;text-align:center}._secondaryButton_1f4sn_159{width:100%;padding:12px;font-size:var(--font-size-sm);font-weight:600;background-color:transparent;color:var(--color-accent);border:1px solid var(--color-accent);border-radius:var(--radius-md);transition:background-color .2s}._secondaryButton_1f4sn_159:hover:not(:disabled){background-color:var(--color-accent-light)}._secondaryButton_1f4sn_159:disabled{opacity:.5;cursor:not-allowed}._noPuzzleAlert_1f4sn_180{background-color:#fef2f2;color:#991b1b;padding:8px 12px;border-radius:var(--radius-sm);font-size:var(--font-size-sm);width:100%}._header_185nm_1{width:100%;max-width:var(--board-max-width);margin:0 auto var(--space-md);display:flex;flex-direction:column;gap:var(--space-sm)}._topRow_185nm_10{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--color-border);padding-bottom:var(--space-xs)}._brandTitle_185nm_18{font-size:var(--font-size-base);font-weight:600;letter-spacing:-.02em;color:var(--color-text-primary)}._quitButton_185nm_25{font-size:var(--font-size-sm);color:var(--color-text-secondary);padding:4px 8px;border-radius:var(--radius-sm);transition:background-color .2s}._quitButton_185nm_25:hover{background-color:var(--color-surface-hover)}._statusRow_185nm_37{display:flex;align-items:center;justify-content:space-between;font-size:var(--font-size-sm);color:var(--color-text-secondary)}._modeBadge_185nm_45{background-color:var(--color-accent-light);color:var(--color-accent);padding:2px 8px;border-radius:var(--radius-sm);font-weight:500}._metrics_185nm_53{display:flex;gap:var(--space-md);align-items:center}._timer_185nm_59{font-family:monospace;font-size:var(--font-size-base);font-weight:600;color:var(--color-text-primary)}._mistakes_185nm_66{color:var(--cell-text-error);font-weight:500}._boardContainer_1db18_1{width:100%;max-width:var(--board-max-width);margin:0 auto;aspect-ratio:1 / 1;display:grid;grid-template-columns:repeat(9,1fr);grid-template-rows:repeat(9,1fr);gap:1px;background-color:var(--color-border-dark);border:2px solid var(--color-border-dark);border-radius:var(--radius-sm);overflow:hidden;-webkit-user-select:none;user-select:none;touch-action:manipulation}._cell_1db18_18{position:relative;display:flex;align-items:center;justify-content:center;font-size:clamp(1rem,5vw,1.5rem);font-weight:600;background-color:var(--cell-bg-user);color:var(--cell-text-user);border:none;padding:0;cursor:pointer;transition:background-color .15s ease,color .15s ease}._givenCell_1db18_33{background-color:var(--cell-bg-given);color:var(--cell-text-given);font-weight:700;cursor:default}._borderRight_1db18_41{border-right:2px solid var(--color-border-dark)}._borderBottom_1db18_45{border-bottom:2px solid var(--color-border-dark)}._relatedCell_1db18_50{background-color:var(--cell-bg-related)}._sameNumberCell_1db18_54{background-color:var(--cell-bg-same-number)}._selectedCell_1db18_58{background-color:var(--cell-bg-selected)!important;box-shadow:inset 0 0 0 2px var(--color-accent);z-index:1}._cell_1db18_18:focus-visible{outline:2px solid var(--color-accent);outline-offset:-2px;z-index:2}._notesGrid_1db18_71{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);width:100%;height:100%;padding:1px;pointer-events:none}._noteItem_1db18_81{display:flex;align-items:center;justify-content:center;font-size:clamp(.5rem,1.8vw,.7rem);font-weight:500;color:var(--cell-text-note);line-height:1}._padWrapper_kgu0n_1{width:100%;max-width:var(--board-max-width);margin:var(--space-md) auto 0;display:flex;flex-direction:column;gap:var(--space-sm)}._actionRow_kgu0n_10{display:flex;gap:var(--space-xs);width:100%}._actionButton_kgu0n_16{flex:1;padding:10px 4px;font-size:var(--font-size-sm);font-weight:500;background-color:var(--color-surface);color:var(--color-text-primary);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-subtle);transition:all .15s ease;display:flex;align-items:center;justify-content:center;gap:4px}._actionButton_kgu0n_16:hover:not(:disabled){background-color:var(--color-surface-hover)}._actionButton_kgu0n_16:disabled{opacity:.4;cursor:not-allowed}._memoActive_kgu0n_42{background-color:var(--color-accent-pink-light);color:var(--color-accent-pink);border-color:var(--color-accent-pink);font-weight:600}._padContainer_kgu0n_49{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--space-xs);width:100%}._numButton_kgu0n_56{padding:12px 0;font-size:var(--font-size-lg);font-weight:600;background-color:var(--color-surface);color:var(--color-accent);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-subtle);transition:all .15s ease;display:flex;align-items:center;justify-content:center}._numButton_kgu0n_56:hover:not(:disabled){background-color:var(--color-accent-light)}._numButton_kgu0n_56:disabled{opacity:.4;cursor:not-allowed}._eraseButton_kgu0n_80{grid-column:span 1;font-size:var(--font-size-sm);color:var(--color-text-secondary)}._container_b1hhz_1{width:100%;max-width:var(--board-max-width);margin:var(--space-lg) auto 0;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg);display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--space-md);box-shadow:var(--shadow-subtle)}._heading_b1hhz_17{font-size:var(--font-size-xl);font-weight:700;color:var(--color-accent)}._statGrid_b1hhz_23{width:100%;display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-sm);background-color:var(--color-background);padding:var(--space-md);border-radius:var(--radius-md)}._statBox_b1hhz_33{display:flex;flex-direction:column;align-items:center}._statLabel_b1hhz_39{font-size:var(--font-size-sm);color:var(--color-text-secondary)}._statValue_b1hhz_44{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text-primary)}._buttonGroup_b1hhz_50{width:100%;display:flex;flex-direction:column;gap:var(--space-sm)}._primaryBtn_b1hhz_57{width:100%;padding:12px;font-size:var(--font-size-base);font-weight:600;background-color:var(--color-accent);color:#fff;border-radius:var(--radius-md);transition:background-color .2s}._primaryBtn_b1hhz_57:hover{background-color:var(--color-accent-hover)}._secondaryBtn_b1hhz_72{width:100%;padding:10px;font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:background-color .2s}._secondaryBtn_b1hhz_72:hover{background-color:var(--color-surface-hover)}._container_1qpkt_1{max-width:480px;margin:var(--space-xl) auto;padding:var(--space-lg);background-color:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius-md);color:#991b1b;display:flex;flex-direction:column;align-items:center;gap:var(--space-md);text-align:center}._title_1qpkt_16{font-size:var(--font-size-lg);font-weight:600}._message_1qpkt_21{font-size:var(--font-size-sm);color:#7f1d1d}._retryBtn_1qpkt_26{padding:8px 16px;font-size:var(--font-size-sm);font-weight:600;background-color:#dc2626;color:#fff;border-radius:var(--radius-sm);transition:background-color .2s}._retryBtn_1qpkt_26:hover{background-color:#b91c1c}:root{--color-background: #f8f9fa;--color-surface: #ffffff;--color-surface-hover: #f1f3f5;--color-text-primary: #1a1d20;--color-text-secondary: #5c636a;--color-text-muted: #8c959f;--color-accent: #2b569a;--color-accent-hover: #1e3d6e;--color-accent-light: #e8f0fe;--color-accent-pink: #9c27b0;--color-accent-pink-light: #f3e5f5;--color-border: #dde1e5;--color-border-dark: #8c959f;--cell-bg-given: #f1f3f5;--cell-bg-user: #ffffff;--cell-bg-selected: #d0e1fd;--cell-bg-related: #edf3fe;--cell-bg-same-number: #dce7f9;--cell-bg-error: #fce8e6;--cell-text-given: #1a1d20;--cell-text-user: #1d4ed8;--cell-text-error: #d93025;--cell-text-note: #5c636a;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.5rem;--font-size-2xl: 2rem;--board-max-width: 480px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-subtle: 0 1px 3px rgba(0, 0, 0, .05)}*{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%;background-color:var(--color-background);color:var(--color-text-primary);font-family:var(--font-family);-webkit-font-smoothing:antialiased;line-height:1.5}#root{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:var(--space-md)}button{font-family:inherit;cursor:pointer;border:none;background:none}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}