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24px;font-size:17px;font-weight:600;border:none;border-radius:12px;cursor:pointer;transition:background-color .15s ease,transform .1s ease}.bottom-sheet-btn svg{width:20px;height:20px;flex-shrink:0}.bottom-sheet-btn-primary{color:var(--color-text-on-primary);background-color:var(--color-primary)}.bottom-sheet-btn-primary:hover{background-color:var(--color-primary-hover)}.bottom-sheet-btn-primary:active{transform:scale(.98)}.bottom-sheet-btn-secondary{color:var(--color-text-emphasis);background-color:var(--color-bg-secondary)}.bottom-sheet-btn-secondary:hover{background-color:var(--color-border-light)}.bottom-sheet-btn-secondary:active{transform:scale(.98)}.bottom-sheet-btn-destructive{color:var(--color-error);background-color:var(--color-bg-secondary)}.bottom-sheet-btn-destructive:hover{background-color:var(--color-error-bg)}.bottom-sheet-btn-destructive:active{transform:scale(.98)}.bottom-sheet-dismiss-btn{display:flex;align-items:center;justify-content:center;width:calc(100% - 40px);margin:24px 20px 20px;padding:14px 24px;font-size:17px;font-weight:600;color:var(--color-text-emphasis);background-color:var(--color-bg-secondary);border:none;border-radius:12px;cursor:pointer;transition:background-color .15s ease,transform .1s ease}.bottom-sheet-dismiss-btn:hover{background-color:var(--color-border-light)}.bottom-sheet-dismiss-btn:active{transform:scale(.98)}@media (min-width: 768px){.bottom-sheet-overlay{background-color:var(--color-backdrop);opacity:0;transition:opacity .3s cubic-bezier(.6,0,.9,1)}.bottom-sheet-overlay.visible{opacity:1;transition:opacity .3s cubic-bezier(.34,1.3,.64,1)}.bottom-sheet{top:50%;left:50%;right:auto;bottom:auto;width:400px;border-radius:16px;padding-bottom:0;transform:translate(-50%,calc(-50% + 1rem));opacity:0;transition:transform .3s cubic-bezier(.6,0,.9,1),box-shadow .3s cubic-bezier(.6,0,.9,1),opacity .3s cubic-bezier(.6,0,.9,1)}.bottom-sheet-overlay.visible .bottom-sheet{transform:translate(-50%,-50%);opacity:1;transition:transform .3s cubic-bezier(.34,1.3,.64,1),box-shadow .3s cubic-bezier(.34,1.3,.64,1),opacity .3s cubic-bezier(.34,1.3,.64,1)}}.settings-list{padding:0}.settings-item{border-bottom:1px solid var(--color-border)}.settings-item:last-child{border-bottom:none}.settings-toggle-label{display:flex;align-items:center;gap:12px;padding:20px 20px 16px;font-size:16px;font-weight:500;color:var(--color-text-primary);cursor:pointer;-webkit-user-select:none;user-select:none;width:100%;background-color:var(--color-bg-elevated);transition:background-color .1s ease}.settings-toggle-label:hover{background-color:var(--color-bg-surface)}.settings-toggle-label:active{background-color:var(--color-neutral-200)}.settings-toggle-label input[type=checkbox]{width:20px;height:20px;cursor:pointer;accent-color:var(--color-primary);flex-shrink:0}.settings-toggle-label span{flex:1}.settings-control{display:flex;flex-direction:column;padding:20px 20px 16px;width:100%}.segmented-control{display:flex;background-color:var(--color-neutral-200);border-radius:9px;padding:2px;gap:0}.segment-btn{flex:1;padding:8px 16px;font-size:14px;font-weight:500;color:var(--color-text-primary);background-color:transparent;border:none;border-radius:7px;cursor:pointer;transition:background-color .2s ease,color .1s ease;min-height:32px;white-space:nowrap}.segment-btn:hover{background-color:var(--color-overlay-subtle)}.segment-btn.active{background-color:var(--color-bg-elevated);color:var(--color-text-primary);box-shadow:0 1px 3px #0000001f,0 1px 2px #00000014}.segment-btn.active:hover{background-color:var(--color-bg-elevated)}#difficulty-settings-item{display:none}#difficulty-settings-item.visible{display:block}