.math-container.matrix-layout{display:flex;flex-direction:column;justify-content:space-between;height:100%;width:100%;padding:1.5rem;flex:1;position:relative;z-index:2;transition:opacity .3s ease}#game-over-overlay.visible~.math-container{opacity:0;pointer-events:none}.blurred{filter:blur(5px);opacity:.3;pointer-events:none}.back-btn,.back-btn svg,.icon-btn,.icon-btn svg,.settings-btn,.settings-btn svg{transition:none!important;animation:none!important}#status-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;z-index:10;cursor:pointer}#status-overlay.hidden{display:none!important;opacity:0}.status-main-text{font-family:var(--font-heading);font-size:5.5rem;font-weight:500;color:var(--text-primary);letter-spacing:-4px;line-height:1;transition:opacity .2s}.status-sub-text{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:1.5rem;font-family:var(--font-body);font-size:1.1rem;color:var(--text-secondary);font-weight:500;text-transform:uppercase;letter-spacing:1px}.status-sub-text svg{width:24px;height:24px;color:var(--text-primary)}.game-board:fullscreen .status-main-text{font-size:8.5rem}.game-board:fullscreen .status-sub-text{font-size:1.5rem;margin-top:2rem}.game-board:fullscreen .status-sub-text svg{width:32px;height:32px}.game-header{padding:0;margin-bottom:0;flex-shrink:0}.score-box{display:flex!important;justify-content:center!important;align-items:center!important;width:72px!important;min-width:72px!important;height:72px!important;padding:0!important;margin:0!important}.timer-display{display:flex;align-items:center;gap:12px;height:100%;font-size:2.5rem;min-width:110px;justify-content:center;padding:0 15px;font-family:var(--font-heading);font-weight:400;color:var(--accent-color);font-variant-numeric:tabular-nums}.timer-display svg{width:48px;height:48px;stroke:none;overflow:visible}.timer-text{padding-top:8px;white-space:nowrap}.timer-danger{color:#ef4444!important;animation:pulseRed 1s infinite}.workspace-container{flex-grow:1;width:100%;display:flex;align-items:center;justify-content:center;gap:0;overflow:hidden;padding:0;position:relative}.matrix-operator{font-family:var(--font-heading);font-size:calc(var(--cell-size, 40px) * .7);color:var(--text-secondary);font-weight:300;margin:0 2px;display:flex;align-items:center;justify-content:center}.matrix-wrapper{display:flex;align-items:stretch;position:relative;padding:2px 5px;margin:0 1px;flex-shrink:0}.matrix-wrapper::after,.matrix-wrapper::before{content:'';position:absolute;width:6px;top:0;bottom:0;border:2px solid var(--text-primary);transition:border-color .4s;pointer-events:none}.matrix-wrapper::before{left:0;border-right:none;border-radius:6px 0 0 6px}.matrix-wrapper::after{right:0;border-left:none;border-radius:0 6px 6px 0}.matrix-grid{display:grid;gap:1px;justify-items:center;align-items:center}.matrix-cell{display:flex;align-items:center;justify-content:center;font-family:var(--font-heading);color:var(--text-primary);padding:0;width:var(--cell-size,40px);height:var(--cell-size,40px);font-size:calc(var(--cell-size, 40px) * .45)}input.matrix-cell{background-color:var(--bg-main);border:1px solid var(--border-color);border-radius:4px;text-align:center;outline:0;transition:all .2s;font-weight:500;appearance:none;-moz-appearance:textfield;width:calc(var(--cell-size,40px) - 4px);height:calc(var(--cell-size,40px) - 4px);margin:2px;font-size:calc(var(--cell-size, 40px) * .45)}input.matrix-cell:focus{border-color:var(--accent-color);box-shadow:0 0 0 2px var(--accent-glow);z-index:5}input.matrix-cell.correct{background-color:color-mix(in srgb,var(--accent-color),transparent 85%);border-color:var(--accent-color);color:var(--accent-color);pointer-events:none}input.matrix-cell.wrong{border-color:var(--accent-color-secondary);color:var(--accent-color-secondary);animation:shake .4s ease-in-out}@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}.game-actions-row{padding:0;margin-top:auto;flex-shrink:0;width:100%}#validate-btn{height:72px!important;flex:1!important;margin:0 1rem!important;padding:0!important;font-size:1.4rem!important;display:flex!important;align-items:center!important;justify-content:center!important}html.global-opaque input.matrix-cell{background-color:var(--card-bg)}.range-inputs.small-range{display:flex;align-items:center;gap:8px;margin-left:0}.range-inputs.small-range input{width:70px!important;padding:6px!important;font-size:.9rem!important}.range-inputs.small-range span{font-size:.85rem;color:var(--text-secondary)}.mode-switch-wrapper{display:flex;position:relative;background-color:var(--bg-main);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:4px;margin-bottom:1.5rem}.mode-switch-wrapper input[type=radio]{display:none}.mode-switch-wrapper label{flex:1;text-align:center;padding:10px 0;font-family:var(--font-heading);font-weight:600;font-size:.9rem;color:var(--text-secondary);cursor:pointer;z-index:2;margin:0;transition:color .3s ease;text-transform:uppercase;letter-spacing:1px}.mode-switch-wrapper input:checked+label{color:var(--text-primary)}.mode-slider{position:absolute;top:4px;bottom:4px;width:calc(50% - 4px);background-color:var(--card-bg);border-radius:6px;z-index:1;transition:transform .3s cubic-bezier(.25, .8, .25, 1);box-shadow:0 2px 5px rgba(0,0,0,.1)}.mode-switch-wrapper input[value=sandbox]:checked~.mode-slider{transform:translateX(100%)}.input-select,select{background-color:var(--bg-main);color:var(--text-primary);border:1px solid var(--border-color);padding:8px;border-radius:var(--radius-md);font-family:var(--font-body);font-size:.95rem;cursor:pointer;outline:0;width:auto;min-width:140px;max-width:200px;text-align:center;text-align-last:center}select:focus{border-color:var(--accent-color);box-shadow:0 0 0 2px var(--accent-glow)}.results-view{width:100%;display:flex;flex-direction:column;align-items:center}.results-view.hidden{display:none!important}#game-over-overlay .overlay-content{justify-content:center;gap:1.5rem}.centered-score-item{text-align:center;margin-bottom:3rem}.centered-score-item .res-label{font-size:1.2rem;font-weight:600;text-transform:uppercase;letter-spacing:2px;opacity:.7;display:block;margin-bottom:.8rem}.big-score-container{display:flex;align-items:baseline;justify-content:center;position:relative}#results-ranked .res-value.big,#results-sandbox .res-value.big{font-size:5.5rem;font-weight:700;line-height:1;font-family:var(--font-heading)}.distribution-chart-container{position:relative;width:100%;max-width:650px;height:180px;margin:1.5rem 0 2rem 0;border-bottom:2px solid var(--border-color);cursor:crosshair}.curve-svg{width:100%;height:100%;overflow:visible}.axis-label{position:absolute;bottom:-25px;font-family:var(--font-body);font-size:.8rem;color:var(--text-secondary)}.axis-label.left{left:0}.axis-label.right{right:0}.hover-line{position:absolute;top:0;bottom:0;width:1px;background:var(--text-primary);transform:translateX(-50%);pointer-events:none;opacity:.3;z-index:3;transition:opacity .2s ease}.chart-tooltip{position:absolute;top:-55px;transform:translateX(-50%);background:var(--card-bg);border:1px solid var(--border-color);padding:6px 12px;border-radius:var(--radius-md);font-family:var(--font-body);font-size:.9rem;color:var(--text-primary);pointer-events:none;white-space:nowrap;z-index:10;box-shadow:var(--shadow-card);text-align:center;line-height:1.4;transition:opacity .2s ease,visibility .2s ease}.chart-tooltip.hidden,.hover-line.hidden{opacity:0!important;visibility:hidden!important}.score-marker{position:absolute;top:0;bottom:0;display:flex;flex-direction:column;align-items:center;transform:translateX(-50%);pointer-events:none;transition:left .5s ease-out}.marker-line{width:2px;height:100%;border-left:2px dashed currentColor}.marker-label{position:absolute;font-family:var(--font-heading);font-size:.8rem;font-weight:700;padding:2px 6px;border-radius:4px;text-transform:uppercase;white-space:nowrap}.marker-current{color:var(--accent-color);z-index:2}.marker-current .marker-label{bottom:100%;margin-bottom:5px;background:var(--bg-main);border:1px solid currentColor}.marker-best{color:var(--text-tertiary);z-index:1;opacity:1}.marker-best .marker-label{top:100%;margin-top:5px;color:var(--text-secondary)}.sandbox-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;margin:1.5rem 0 2rem 0;width:100%;max-width:600px}.stat-box-small{background:0 0;border:1px solid var(--border-color);padding:12px 20px;border-radius:var(--radius-md);display:flex;flex-direction:column;align-items:center;min-width:120px}.stat-title{font-family:var(--font-heading);font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:1px;margin-bottom:5px;text-align:center}.stat-value{font-family:var(--font-heading);font-size:1.4rem;font-weight:600;color:var(--text-primary)}.history-chart{display:flex;align-items:stretch;justify-content:center;gap:16px;height:120px;width:max-content;max-width:100%;margin:0 auto;padding:0 60px;border-bottom:2px solid var(--border-color);overflow-x:auto;scrollbar-width:none}.history-chart::-webkit-scrollbar{display:none}.history-bar-wrapper{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;position:relative;flex-shrink:1}.history-bar{width:45px;background-color:var(--accent-color);opacity:.8;border-radius:6px 6px 0 0;position:relative;transition:none!important}.bar-label{font-size:.85rem;font-family:var(--font-body);color:var(--text-primary);margin-bottom:6px;font-weight:600}.bar-index{position:absolute;top:100%;margin-top:6px;font-size:.8rem;font-family:var(--font-heading);color:var(--text-secondary)}#restart-btn{margin-top:2rem}.exit-fs-btn{position:absolute;top:20px;right:20px;background:0 0;border:none;color:var(--text-secondary);cursor:pointer;display:none;padding:8px;z-index:10000;transition:color var(--transition-fast)}.exit-fs-btn svg{width:32px;height:32px}.exit-fs-btn:hover{color:var(--accent-color-secondary)}.ios-fullscreen .exit-fs-btn{display:block!important}.game-page .main-content{display:flex;flex-direction:column}.game-board{flex:1 0 auto;display:flex;flex-direction:column;min-height:600px;margin-bottom:0!important}#game-over-overlay{overflow-y:auto}#game-over-overlay .overlay-content{height:auto;min-height:100%;padding:4rem 0}@media (max-width:900px){.math-container.matrix-layout{padding:.75rem}.workspace-container{display:grid!important;grid-template-columns:max-content max-content max-content;justify-content:center;align-content:center;align-items:center;gap:4px 4px;width:100%;overflow-x:auto}.matrix-operator{transform:none;margin:0}.workspace-container>.matrix-operator:nth-child(4){grid-column:1/-1;justify-self:center;text-align:center;margin:2px 0}.workspace-container>.matrix-wrapper:nth-child(5){grid-column:1/-1;justify-self:center;margin:0}}@media (max-width:700px){.score-box{width:60px!important;min-width:60px!important;height:60px!important;font-size:1.4rem!important}#validate-btn{height:60px!important;margin:0 .5rem!important;font-size:1.2rem!important}.game-actions-row{gap:12px}input.matrix-cell{font-size:max(16px, calc(var(--cell-size, 40px) * .45))!important}.status-main-text{font-size:4rem}.status-sub-text{font-size:.9rem;flex-wrap:wrap}#results-ranked .res-value.big,#results-sandbox .res-value.big{font-size:4.5rem}.distribution-chart-container{height:140px;margin-top:1.5rem;margin-bottom:2.5rem}.sandbox-stats{gap:.5rem;margin:1.5rem 0 2rem 0;flex-direction:column;align-items:center}.stat-box-small{padding:10px;min-width:100px}.stat-value{font-size:1.2rem}.history-chart{gap:8px;height:100px;padding:0 40px}.history-bar{width:35px}.bar-label{font-size:.75rem}#restart-btn{margin-top:1rem}.math-container.matrix-layout{padding:.5rem}body.game-page{overscroll-behavior:none}#settings-panel{touch-action:auto;overscroll-behavior:contain}.game-page .main-content{display:flex!important;flex-direction:column!important;justify-content:flex-start!important;height:auto!important;min-height:calc(100svh - 80px)!important;padding-top:80px!important;padding-bottom:0!important;padding-left:0!important;padding-right:0!important}.game-board{flex:1 1 100%!important;display:flex!important;flex-direction:column!important;height:auto!important;min-height:calc(100svh - 80px)!important;max-height:none!important;margin:0!important;border-radius:0}#game-over-overlay{overflow-y:auto!important}#game-over-overlay .overlay-content{height:auto!important;min-height:100%!important;padding:4rem 0 3rem 0!important;justify-content:center!important;gap:2.5rem!important}body.game-page:has(.game-board:focus-within) #footer-placeholder,body.game-page:has(.game-board:focus-within) footer{display:none!important}.game-board:focus-within{flex:1 1 100%!important;height:auto!important;min-height:250px!important;max-height:none!important}.game-board:focus-within .workspace-container{overflow-y:auto!important}.game-page .game-board:fullscreen .math-container,.ios-fullscreen .math-container{padding-top:1.5rem!important;padding-bottom:1rem!important}.game-board:fullscreen .workspace-container{width:100%!important;height:auto!important;max-width:100%!important;max-height:100%!important;transform:none!important;align-content:center!important}.game-board:fullscreen .math-container.matrix-layout{transform:none!important;padding:.5rem!important;height:100%!important;max-height:100vh!important}.game-board:fullscreen .status-main-text{font-size:4rem!important}.game-board:fullscreen .status-sub-text{font-size:.9rem!important;margin-top:1.5rem!important}.game-board:fullscreen .status-sub-text svg{width:24px!important;height:24px!important}}.game-board:fullscreen{width:100vw!important;height:100vh!important;max-width:none!important;max-height:none!important;border-radius:0!important;border:none!important;background-color:var(--bg-main);display:flex!important;flex-direction:column!important}.ios-fullscreen{position:fixed!important;inset:0!important;width:100vw!important;height:100dvh!important;max-width:none!important;max-height:none!important;z-index:9999!important;border-radius:0!important;border:none!important;background-color:var(--bg-main)!important;display:flex!important;flex-direction:column!important}#new-record-msg,.new-record{color:var(--record-color,#ffa914)!important}.new-record svg{color:var(--record-color,#ffa914)!important}