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dl>div{grid-template-columns:1fr;gap:2px}}.settings-page{width:min(880px,100%)}.settings-header{justify-content:space-between;align-items:flex-end;gap:var(--space-md);margin-bottom:var(--space-lg);display:flex}.settings-header h1{letter-spacing:-.01em;font-size:28px;font-weight:600}.settings-header p,.settings-section>header p{color:var(--color-text-secondary);margin-top:4px;font-size:13px}.settings-sync{border:1px solid var(--color-border);color:var(--color-text-secondary);border-radius:999px;flex:none;padding:4px 10px;font-size:12px}.settings-sync.is-error{border-color:var(--color-danger);color:var(--color-danger)}.settings-error{margin-bottom:var(--space-md);padding:var(--space-sm) var(--space-md);border:1px solid var(--color-danger);border-radius:var(--radius-sm);background:var(--color-danger-soft);color:var(--color-danger);font-size:13px}.settings-section{margin-bottom:var(--space-md);padding:var(--space-lg);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface)}.settings-section>header{margin-bottom:var(--space-md)}.settings-section h2{font-size:18px}.settings-row{justify-content:space-between;align-items:center;gap:var(--space-lg);padding:var(--space-md) 0;border-top:1px solid var(--color-border);display:flex}.settings-row:first-of-type{border-top:0;padding-top:0}.settings-label{flex-direction:column;gap:2px;min-width:0;display:flex}.settings-label strong{font-size:14px;font-weight:500}.settings-label small{color:var(--color-text-muted);font-size:12px}.settings-row>select{min-width:140px;height:36px;padding:0 var(--space-sm);background:var(--color-bg);font-size:13px}.settings-row-theme{align-items:stretch;gap:var(--space-md);flex-direction:column}.theme-picker{gap:var(--space-md);flex-direction:column;display:flex}.theme-picker>.theme-card{align-self:flex-start}.theme-group{gap:var(--space-sm);flex-direction:column;display:flex}.theme-group-label{color:var(--color-text-muted);font-size:12px}.theme-grid{gap:var(--space-sm);grid-template-columns:repeat(auto-fill,minmax(128px,1fr));display:grid}.theme-card{align-items:center;gap:var(--space-sm);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);min-width:0;color:var(--color-text-secondary);text-align:left;transition:border-color var(--duration), box-shadow var(--duration), color var(--duration);padding:5px 8px 5px 5px;font-size:12px;display:flex}.theme-card:hover{border-color:var(--color-border-strong);color:var(--color-text)}.theme-card.active{border-color:var(--color-accent);box-shadow:0 0 0 1px var(--color-accent);color:var(--color-text);font-weight:500}.theme-card-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.theme-swatch{border:1px solid #00000024;border-radius:5px;flex:none;width:44px;height:32px;display:block;position:relative;overflow:hidden}.theme-swatch-bar{height:8px;position:absolute;inset:0 0 auto}.theme-swatch-dot{border-radius:50%;width:5px;height:5px;position:absolute;top:13px;left:6px}.theme-swatch-line{opacity:.85;border-radius:2px;width:calc(100% - 22px);height:4px;position:absolute;top:13px;left:16px}.theme-swatch-system{background:linear-gradient(135deg,#f7f7f9 0 50%,#38384a 50% 100%)}.settings-stepper{align-items:center;gap:var(--space-sm);display:flex}.settings-stepper button{border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);width:34px;height:34px;color:var(--color-text);font-size:13px}.settings-stepper button:hover:not(:disabled){border-color:var(--color-border-strong)}.settings-stepper span{font-variant-numeric:tabular-nums;text-align:center;min-width:24px;font-size:14px}.settings-toggle{border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);min-width:84px;color:var(--color-text-secondary);padding:7px 14px;font-size:13px}.settings-toggle:hover{border-color:var(--color-border-strong)}.settings-toggle.active{border-color:var(--color-accent);background:var(--color-accent);color:var(--color-accent-ink)}.settings-actions{gap:var(--space-sm);flex-wrap:wrap;display:flex}.settings-button{min-height:36px;padding:0 var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);transition:border-color var(--duration), background-color 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(width<=640px){.settings-header{flex-direction:column;align-items:flex-start}.settings-row{align-items:flex-start;gap:var(--space-sm);flex-direction:column}.settings-footer{flex-direction:column;align-items:flex-start}}.solutions-panel{flex-direction:column;min-width:0;display:flex}.solutions-head{justify-content:space-between;align-items:center;gap:var(--space-md);margin-bottom:var(--space-md);display:flex}.solutions-head h2{align-items:center;gap:var(--space-sm);font-size:18px;font-weight:600;line-height:1.4;display:flex}.count-pill{background:var(--color-bg);min-height:21px;color:var(--color-text-muted);font-family:var(--font-mono);font-variant-numeric:tabular-nums;border-radius:999px;align-items:center;padding:0 8px;font-size:11px;font-weight:500;display:inline-flex}.new-solution-button{border:1px solid var(--color-accent);border-radius:var(--radius-sm);background:var(--color-accent);min-height:36px;color:var(--color-accent-ink);transition:background-color var(--duration), border-color var(--duration);flex:none;justify-content:center;align-items:center;gap:4px;padding:0 13px;font-size:13px;font-weight:500;display:inline-flex}.new-solution-button:hover:not(:disabled){border-color:var(--color-accent-hover);background:var(--color-accent-hover)}.new-solution-button:disabled{cursor:not-allowed;opacity:.45}.solution-limit-note{align-items:center;gap:var(--space-sm);margin-bottom:var(--space-md);border:1px solid color-mix(in srgb, var(--color-warning) 28%, transparent);border-radius:var(--radius-sm);background:var(--color-warning-soft);color:var(--color-warning);padding:9px 12px;font-size:12px;display:flex}.solution-limit-note:before{content:"!";border:1px solid;border-radius:50%;flex:none;justify-content:center;align-items:center;width:16px;height:16px;font-size:10px;font-weight:700;line-height:1;display:inline-flex}.solution-list{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.solution-card{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);transition:border-color var(--duration), background-color var(--duration), box-shadow var(--duration);grid-template-columns:minmax(0,1fr) auto;display:grid;position:relative;overflow:hidden}.solution-card:hover{border-color:var(--color-border-strong)}.solution-card.is-active{border-color:var(--color-accent);background:color-mix(in srgb, var(--color-accent) 4%, var(--color-surface));box-shadow:inset 3px 0 0 var(--color-accent)}.solution-card-main{cursor:pointer;text-align:left;align-items:flex-start;gap:11px;min-width:0;padding:14px 0 14px 16px;display:flex}.solution-index{color:var(--color-text-muted);font-family:var(--font-mono);letter-spacing:.04em;flex:none;padding-top:2px;font-size:11px}.solution-info{flex:1;min-width:0}.solution-title-row{flex-wrap:wrap;align-items:center;gap:6px 8px;display:flex}.solution-name{overflow-wrap:anywhere;font-size:14.5px;font-weight:600;line-height:1.45}.solution-rename-input{border:1px solid var(--color-accent);background:var(--color-surface);width:min(220px,100%);min-height:26px;color:var(--color-text);border-radius:6px;padding:2px 7px;font-size:14px;font-weight:600}.solution-rename-input:focus{outline:2px solid color-mix(in srgb, var(--color-accent) 28%, transparent);outline-offset:1px}.solution-status{white-space:nowrap;border-radius:999px;align-items:center;min-height:19px;padding:0 7px;font-size:11px;font-weight:600;line-height:1;display:inline-flex}.solution-status.accepted{background:var(--color-success-soft);color:var(--color-success)}.solution-status.failed{background:var(--color-danger-soft);color:var(--color-danger)}.solution-status.draft{background:var(--color-bg);color:var(--color-text-muted)}.solution-flag{border:1px solid var(--color-accent);min-height:19px;color:var(--color-accent);white-space:nowrap;border-radius:999px;align-items:center;padding:0 7px;font-size:10px;font-weight:600;line-height:1;display:inline-flex}.solution-lang{background:var(--color-bg);color:var(--color-text-muted);font-family:var(--font-mono);border-radius:4px;align-items:center;padding:1px 6px;font-size:10.5px;display:inline-flex}.solution-meta{color:var(--color-text-secondary);margin-top:4px;font-size:12px;line-height:1.5}.solution-time{color:var(--color-text-muted);margin-top:2px;font-size:11px}.solution-actions{align-items:flex-start;gap:2px;padding:12px 12px 0 8px;display:flex}.solution-actions button{color:var(--color-text-muted);white-space:nowrap;transition:background-color var(--duration), color var(--duration);border-radius:6px;padding:4px 7px;font-size:11.5px}.solution-actions button:hover:not(:disabled){background:var(--color-bg);color:var(--color-text)}.solution-actions button.is-danger:hover:not(:disabled){background:var(--color-danger-soft);color:var(--color-danger)}.solution-actions button:disabled{cursor:not-allowed;opacity:.35}.switch-wrap{position:relative}.switch-button{border:1px solid var(--color-border);background:var(--color-surface);max-width:270px;height:32px;color:var(--color-text);transition:border-color var(--duration), background-color var(--duration);border-radius:7px;align-items:center;gap:7px;padding:0 10px;font-size:12px;display:inline-flex}.switch-button:hover{border-color:var(--color-border-strong);background:var(--color-bg)}.switch-button[aria-expanded=true]{border-color:var(--color-accent);background:var(--color-bg)}.switch-dot{background:var(--color-border-strong);border-radius:50%;flex:none;width:7px;height:7px}.switch-dot.accepted{background:var(--color-success)}.switch-dot.failed{background:var(--color-danger)}.switch-dot.draft{background:var(--color-text-muted)}.switch-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.switch-count{color:var(--color-text-muted);font-variant-numeric:tabular-nums;font-size:11px}.switch-caret{color:var(--color-text-muted);transition:transform var(--duration);font-size:9px}.switch-button[aria-expanded=true] .switch-caret{transform:rotate(180deg)}.solution-popover{z-index:30;border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);width:min(380px,100vw - 32px);box-shadow:var(--shadow-md);padding:8px;animation:.14s ease-out nav-menu-in;position:absolute;top:calc(100% + 8px);right:0}.popover-head{justify-content:space-between;align-items:center;gap:var(--space-md);color:var(--color-text-secondary);padding:2px 6px 8px;font-size:12px;display:flex}.popover-head strong{color:var(--color-text);font-size:12px;font-weight:600}.solution-row-list{flex-direction:column;gap:2px;max-height:324px;margin:0;padding:0;list-style:none;display:flex;overflow-y:auto}.solution-row{border-radius:var(--radius-sm);transition:background-color var(--duration);align-items:center;display:flex}.solution-row:hover{background:var(--color-bg)}.solution-row.is-active{background:var(--color-accent-soft)}.solution-row-main{text-align:left;flex:1;align-items:center;gap:9px;min-width:0;padding:9px 10px;display:flex}.row-info{flex-direction:column;flex:1;gap:1px;min-width:0;display:flex}.row-title{color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:6px;font-size:12.5px;font-weight:500;display:flex;overflow:hidden}.row-current{background:var(--color-surface);color:var(--color-accent);border-radius:4px;padding:0 5px;font-size:9.5px;font-weight:600}.row-meta{color:var(--color-text-muted);text-overflow:ellipsis;white-space:nowrap;font-size:10.5px;overflow:hidden}.row-actions{opacity:0;transition:opacity var(--duration);align-items:center;padding-right:6px;display:inline-flex}.solution-row:hover .row-actions,.solution-row.is-active .row-actions,.row-actions:focus-within{opacity:1}.row-delete{color:var(--color-text-muted);border-radius:5px;padding:3px 6px;font-size:10.5px}.row-delete:hover:not(:disabled){background:var(--color-danger-soft);color:var(--color-danger)}.row-delete:disabled{cursor:not-allowed;opacity:.3}.popover-foot{justify-content:space-between;align-items:center;gap:var(--space-sm);border-top:1px solid var(--color-border);margin-top:6px;padding:8px 6px 2px;display:flex}.popover-add{color:var(--color-accent);padding:4px 2px;font-size:12px;font-weight:500}.popover-add:hover:not(:disabled){text-decoration:underline}.popover-add:disabled{cursor:not-allowed;color:var(--color-text-muted);text-decoration:none}.popover-hint{color:var(--color-text-muted);font-size:10.5px}.delete-solution-dialog{width:min(440px,100%)}.delete-warning{margin-bottom:var(--space-md);color:var(--color-text-secondary);font-size:13px;line-height:1.6}.delete-target{align-items:center;gap:var(--space-sm);margin-bottom:var(--space-lg);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);padding:11px 13px;display:flex}.delete-target .solution-index{padding:0}.delete-target strong{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:13px;overflow:hidden}.delete-dialog-actions{justify-content:flex-end;gap:var(--space-sm);display:flex}.solution-danger-button{min-height:38px;padding:0 var(--space-md);border:1px solid var(--color-danger);border-radius:var(--radius-sm);background:var(--color-danger);color:#fff;justify-content:center;align-items:center;font-size:13px;font-weight:500;display:inline-flex}.solution-danger-button:hover:not(:disabled){background:color-mix(in srgb, var(--color-danger) 85%, #000)}.solution-danger-button:disabled{cursor:not-allowed;opacity:.6}.history-solution-tag{background:var(--color-bg);max-width:120px;color:var(--color-text-secondary);text-overflow:ellipsis;white-space:nowrap;border-radius:4px;align-items:center;padding:1px 6px;font-size:10.5px;display:inline-flex;overflow:hidden}@media (width<=720px){.switch-button{max-width:190px}.solution-card{grid-template-columns:1fr}.solution-card-main{padding-right:12px}.solution-actions{padding:0 12px 10px 38px}.solution-actions button{border:1px solid var(--color-border);background:var(--color-surface)}.solution-status,.solution-lang,.solution-flag{display:none}}@media (width<=520px){.switch-button{max-width:150px}.solutions-head{align-items:flex-start}}.editor-tools .switch-button{border:1px solid var(--color-border);width:auto;height:32px;padding:0 10px}.editor-tools .solution-popover button{width:auto;height:auto;color:inherit;justify-content:flex-start}.editor-tools .solution-popover .row-delete{color:var(--color-text-muted);font-size:10.5px}.editor-tools .solution-popover .row-delete:hover:not(:disabled){background:var(--color-danger-soft);color:var(--color-danger)}.editor-tools .solution-popover .popover-add{color:var(--color-accent);font-size:12px;font-weight:500}.editor-tools .solution-popover .popover-add:hover:not(:disabled){background:0 0;text-decoration:underline}.accepted-solution-cta{justify-content:space-between;align-items:center;gap:var(--space-sm);margin-top:var(--space-md);border:1px solid color-mix(in srgb, var(--color-success) 28%, transparent);border-radius:var(--radius-sm);background:var(--color-success-soft);flex-wrap:wrap;padding:10px 12px;display:flex}.accepted-solution-cta p{color:var(--color-success);font-size:12px}.accepted-solution-cta .primary-button{min-height:32px;padding:0 12px;font-size:12px}.accepted-solution-cta .primary-button:disabled{cursor:not-allowed;opacity:.55}.app-toast-stack{z-index:1200;pointer-events:none;flex-direction:column;align-items:center;gap:10px;width:min(92vw,520px);display:flex;position:fixed;top:80px;left:50%;transform:translate(-50%)}.app-toast{border:1px solid color-mix(in srgb, var(--color-success) 42%, var(--color-border));background:color-mix(in srgb, var(--color-success-soft) 88%, var(--color-surface));width:fit-content;min-width:240px;max-width:100%;box-shadow:var(--shadow-md);color:var(--color-success);pointer-events:auto;border-radius:14px;align-items:center;gap:10px;padding:12px 14px 14px;display:flex;position:relative;overflow:hidden}.app-toast-error{border-color:color-mix(in srgb, var(--color-danger) 42%, var(--color-border));background:color-mix(in srgb, var(--color-danger-soft) 88%, var(--color-surface));color:var(--color-danger)}.app-toast-info{border-color:color-mix(in srgb, var(--color-accent) 42%, var(--color-border));background:color-mix(in srgb, var(--color-accent-soft) 88%, var(--color-surface));color:var(--color-accent)}.app-toast-icon{background:var(--color-success);width:24px;height:24px;color:var(--color-surface);border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:13px;font-weight:700;line-height:1;display:inline-flex;position:relative}.app-toast-error .app-toast-icon{background:var(--color-danger)}.app-toast-info .app-toast-icon{background:var(--color-accent)}.app-toast-icon:after{content:"";border:1px solid;border-radius:50%;animation:1.4s ease-out toast-ring;position:absolute;inset:-4px}.app-toast-message{color:var(--color-text);flex:1;font-size:14px;font-weight:550;line-height:1.45}.app-toast-close{color:var(--color-text-muted);background:0 0;border:0;flex:none;padding:2px 4px;font-size:16px;line-height:1}.app-toast-close:hover{color:var(--color-text)}.app-toast-progress{background:linear-gradient(90deg, color-mix(in srgb, var(--color-success) 55%, transparent), var(--color-success));transform-origin:0;height:3px;animation-name:toast-progress;animation-timing-function:linear;animation-fill-mode:forwards;position:absolute;bottom:0;left:0;right:0}.app-toast-error .app-toast-progress{background:linear-gradient(90deg, color-mix(in srgb, var(--color-danger) 55%, transparent), var(--color-danger))}.toast-pop-enter-active{transition:opacity .26s,transform .44s cubic-bezier(.2,1.35,.35,1)}.toast-pop-leave-active{transition:opacity .22s,transform .22s}.toast-pop-enter-from{opacity:0;transform:translateY(-18px)scale(.94)}.toast-pop-leave-to{opacity:0;transform:translateY(-10px)scale(.96)}.toast-pop-move{transition:transform .24s}@keyframes toast-progress{0%{transform:scaleX(1)}to{transform:scaleX(0)}}@keyframes toast-ring{0%{opacity:.8;transform:scale(.7)}to{opacity:0;transform:scale(1.6)}}@media (width<=720px){.app-toast-stack{width:calc(100vw - 32px);top:76px}}@media (prefers-reduced-motion:reduce){.toast-pop-enter-active,.toast-pop-leave-active{transition-duration:.01ms}.app-toast-icon:after,.app-toast-progress{animation:none}}