:root{--d-del-bg:#ef44441f;--d-del-bdr:#ef444459;--d-del-hl:#ef444452;--d-del-txt:#dc2626;--d-ins-bg:#22c55e24;--d-ins-bdr:#22c55e59;--d-ins-hl:#22c55e59;--d-ins-txt:#16a34a;--d-gut-bg:#0f172a0a;--d-gut-txt:#94a3b8;--d-empty-bg:repeating-linear-gradient(-45deg, transparent, transparent 6px, #0f172a08 6px, #0f172a08 12px)}[data-theme=dark]{--d-del-bg:#ef444438;--d-del-bdr:#ef444473;--d-del-hl:#ef444473;--d-del-txt:#f87171;--d-ins-bg:#22c55e33;--d-ins-bdr:#22c55e73;--d-ins-hl:#22c55e73;--d-ins-txt:#4ade80;--d-gut-bg:#ffffff08;--d-gut-txt:#64748b;--d-empty-bg:repeating-linear-gradient(-45deg, transparent, transparent 6px, #ffffff05 6px, #ffffff05 12px)}.tool-page-wrapper{background:var(--bg-primary);min-height:100vh}.tool-layout-container{max-width:var(--container-max);margin:0 auto;padding:0 1.5rem}.tool-layout-row{align-items:flex-start;gap:2rem;display:flex}.tool-main-content{flex:1;min-width:0;padding:1.5rem 0 4rem}.tool-content-wrapper{flex-direction:column;gap:1rem;display:flex}.tool-breadcrumb{color:var(--text-muted);align-items:center;gap:.45rem;margin-bottom:.65rem;font-size:.83rem;display:flex}.tool-breadcrumb a{color:var(--text-muted);text-decoration:none;transition:color .15s}.tool-breadcrumb a:hover{color:var(--lucky-green)}.tool-breadcrumb .sep{opacity:.35}.tool-breadcrumb .current{color:var(--text-primary);font-weight:500}.tool-hero{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);justify-content:space-between;align-items:flex-start;gap:1.25rem;padding:1.25rem 1.5rem;display:flex}.hero-title-row{align-items:center;gap:1rem;display:flex}.hero-icon{background:var(--bg-subtle);border:1px solid 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.15s;display:inline-flex}.btn-ghost:hover{border-color:var(--lucky-green);color:var(--lucky-green)}.sample-dd-wrap,.export-dd-wrap{position:relative}.sample-dd,.export-dd{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:60;flex-direction:column;gap:.15rem;min-width:220px;padding:.35rem;display:none;position:absolute;top:calc(100% + 5px);right:0}.sample-dd.show,.export-dd.show{display:flex}.dd-opt{color:var(--text-primary);text-align:left;cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;align-items:center;gap:.45rem;padding:.5rem .7rem;font-size:.83rem;font-weight:500;transition:background .12s;display:flex}.dd-opt:hover{background:var(--bg-subtle);color:var(--lucky-green)}.toolbar{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);flex-wrap:wrap;align-items:center;gap:.7rem;padding:.6rem .85rem;display:flex}.tb-group{align-items:center;gap:.35rem;display:flex}.tb-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;margin-right:.15rem;font-size:.77rem;font-weight:600}.tb-sep{background:var(--border-color);width:1px;height:18px;margin:0 .15rem}.tb-btn{border-radius:var(--radius-sm);background:var(--bg-subtle);color:var(--text-secondary);cursor:pointer;border:1px solid #0000;align-items:center;gap:.3rem;padding:.32rem .6rem;font-size:.8rem;font-weight:500;transition:all .12s;display:inline-flex}.tb-btn:hover{color:var(--text-primary);border-color:var(--border-color)}.tb-btn.active{background:var(--lucky-green);font-weight:600;box-shadow:0 1px 3px #10b9814d;color:#fff!important}.tb-chk{color:var(--text-secondary);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:var(--radius-sm);align-items:center;gap:.3rem;padding:.25rem .35rem;font-size:.8rem;display:inline-flex}.tb-chk:hover{color:var(--text-primary);background:var(--bg-subtle)}.tb-chk input{accent-color:var(--lucky-green);cursor:pointer;width:14px;height:14px}.tb-right{margin-left:auto}.tb-regex-input{border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-surface);width:120px;color:var(--text-primary);font-family:var(--font-mono);padding:.28rem .5rem;font-size:.78rem}.status-bar{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;padding:.5rem .85rem;display:flex}.stat-badges{flex-wrap:wrap;align-items:center;gap:.4rem;display:flex}.badge{border-radius:var(--radius-sm);border:1px solid #0000;align-items:center;gap:.25rem;padding:.22rem .6rem;font-size:.76rem;font-weight:600;display:inline-flex}.b-add{background:var(--d-ins-bg);border-color:var(--d-ins-bdr);color:var(--d-ins-txt)}.b-del{background:var(--d-del-bg);border-color:var(--d-del-bdr);color:var(--d-del-txt)}.b-mod{color:#d97706;background:#f59e0b1f;border-color:#f59e0b59}[data-theme=dark] .b-mod{color:#fbbf24}.b-chunk,.b-sim{background:var(--bg-subtle);border-color:var(--border-color);color:var(--text-secondary)}.nav-group{align-items:center;gap:.4rem;display:flex}.nav-pos{color:var(--text-muted);margin-right:.25rem;font-size:.8rem;font-weight:500}.nav-btn{border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-card);color:var(--text-primary);cursor:pointer;align-items:center;gap:.2rem;padding:.3rem .55rem;font-size:.76rem;font-weight:500;transition:all .12s;display:inline-flex}.nav-btn:not(:disabled):hover{background:var(--bg-subtle);border-color:var(--lucky-green);color:var(--lucky-green)}.nav-btn:disabled{opacity:.35;cursor:not-allowed}.identical-banner{border-radius:var(--radius-md);background:#22c55e12;border:1px solid #22c55e4d;align-items:center;gap:1rem;padding:1rem 1.25rem;display:flex}.ident-icon{font-size:2rem}.workspace{grid-template-columns:1fr 1fr;gap:.75rem;min-height:560px;display:grid}.pane{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);flex-direction:column;min-width:0;display:flex;position:relative;overflow:hidden}#pane-l{border-top:3px solid #ef4444}#pane-r{border-top:3px solid #22c55e}.pane-head{border-bottom:1px solid var(--border-color);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.4rem;padding:.5rem .75rem;display:flex}.ph-orig{background:#ef44440a}[data-theme=dark] .ph-orig{background:#ef444414}.ph-mod{background:#22c55e0a}[data-theme=dark] .ph-mod{background:#22c55e14}.ph-left{align-items:center;gap:.45rem;display:flex}.ph-tag{text-transform:uppercase;letter-spacing:.04em;border-radius:3px;padding:.12rem .4rem;font-size:.68rem;font-weight:700}.t-orig{background:var(--d-del-bg);color:var(--d-del-txt);border:1px solid var(--d-del-bdr)}.t-mod{background:var(--d-ins-bg);color:var(--d-ins-txt);border:1px solid var(--d-ins-bdr)}.ph-title{color:var(--text-primary);font-size:.82rem;font-weight:600}.ph-meta{color:var(--text-muted);font-size:.72rem}.ph-right{align-items:center;gap:.3rem;display:flex}.ph-btn{border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-surface);color:var(--text-secondary);cursor:pointer;align-items:center;gap:.2rem;padding:.22rem .42rem;font-size:.72rem;font-weight:500;transition:all .12s;display:inline-flex}.ph-btn:hover{color:var(--lucky-green);border-color:var(--lucky-green)}.file-label{cursor:pointer}.file-label input[type=file]{display:none}.diff-view{background:var(--bg-surface);flex:1;min-height:520px;max-height:720px;position:relative;overflow:hidden;flex-direction:row!important;display:flex!important}.diff-view:hover .edit-hint-badge{opacity:1;transform:translateY(0)}.edit-hint-badge{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--lucky-green);box-shadow:var(--shadow-sm);pointer-events:none;opacity:0;z-index:10;padding:.25rem .55rem;font-size:.72rem;font-weight:600;transition:all .2s;position:absolute;top:10px;right:14px;transform:translateY(-4px)}.dv-gutter{background:var(--d-gut-bg);border-right:1px solid var(--border-color);color:var(--d-gut-txt);text-align:right;box-sizing:border-box;cursor:pointer;padding:10px 4px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace;font-size:13px;overflow:hidden;-webkit-user-select:none!important;user-select:none!important;flex-shrink:0!important;width:44px!important}.dv-gutter div{height:22px;line-height:22px;transition:color .12s;overflow:hidden;-webkit-user-select:none!important;user-select:none!important}.dv-gutter div:hover{color:var(--lucky-green)}.dv-gutter .g-del{background:#ef444414;font-weight:600;color:var(--d-del-txt)!important}.dv-gutter .g-ins{background:#22c55e14;font-weight:600;color:var(--d-ins-txt)!important}.dv-gutter .g-empty{cursor:default;color:#0000!important}.dv-code{color:var(--text-primary);white-space:pre;tab-size:2;box-sizing:border-box;padding:10px 12px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace;font-size:13px;line-height:22px;overflow:auto;flex:1!important;min-width:0!important}.dv-code ::selection{color:inherit;background:#10b98159}[data-theme=dark] .dv-code ::selection{color:#fff;background:#10b98173}.dline{box-sizing:border-box;cursor:text;border-radius:2px;outline:none;height:22px;min-height:22px;padding:0 6px;line-height:22px;transition:background .12s;display:block;position:relative}.dline:hover:not(:focus):not(.dline-empty){background:#10b9810f}.dline:focus,.dline-editing-spacer:focus{box-shadow:inset 0 0 0 1.5px var(--lucky-green), 0 0 0 3px #10b98133;z-index:5;caret-color:var(--lucky-green);border-radius:2px;outline:none;background:var(--bg-card)!important}.dline-editing-spacer{background:var(--bg-card)!important;cursor:text!important;-webkit-user-select:text!important;user-select:text!important}.dline-del{background:var(--d-del-bg)}.dline-ins{background:var(--d-ins-bg)}.dline-empty{background:var(--d-empty-bg);cursor:pointer;transition:all .15s;-webkit-user-select:none!important;user-select:none!important}.dline-empty:hover{background:#10b98114;box-shadow:inset 0 0 0 1px #10b98159}.dline-empty:hover:after{content:"클릭하여 입력";height:22px;color:var(--lucky-green);font-size:11px;line-height:22px;font-family:var(--font-sans,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);opacity:.9;pointer-events:none;font-weight:500;position:absolute;top:0;left:8px}.dline[data-placeholder]:empty:before{content:attr(data-placeholder);color:var(--text-muted);opacity:.55;pointer-events:none;font-style:italic}.hw-del{background:var(--d-del-hl);border-radius:2px;padding:0 2px;font-weight:600}.hw-ins{background:var(--d-ins-hl);border-radius:2px;padding:0 2px;font-weight:600}.chunk-focus{box-shadow:inset 3px 0 #0284c7}.wrap-mode .dv-code{white-space:pre-wrap;word-break:break-all}.diff-float-bar{z-index:1000;background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);pointer-events:auto;align-items:center;gap:5px;padding:4px 7px;animation:.12s ease-out dfbFadeIn;display:flex;position:fixed;box-shadow:0 10px 25px -5px #00000059,0 0 0 1px #10b98140}@keyframes dfbFadeIn{0%{opacity:0;transform:translate(-50%,-85%)}to{opacity:1;transform:translate(-50%,-100%)}}.dfb-btn{border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-subtle);color:var(--text-primary);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:4px;padding:4px 9px;font-size:.78rem;font-weight:600;transition:all .12s;display:inline-flex}.dfb-btn:hover{background:var(--lucky-green);border-color:var(--lucky-green);color:#fff}.dfb-danger:hover{color:#fff!important;background:#ef4444!important;border-color:#ef4444!important}.algo-section{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;gap:1.25rem;margin-top:1rem;padding:1.5rem;display:flex}.algo-header-left{align-items:center;gap:.85rem;display:flex}.algo-section-icon{background:var(--bg-subtle);border:1px solid var(--border-color);border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.6rem;display:flex}.algo-section-title{color:var(--text-primary);margin:0 0 .2rem;font-size:1.15rem;font-weight:700}.algo-section-sub{color:var(--text-secondary);margin:0;font-size:.84rem}.algo-cards-grid{grid-template-columns:repeat(2,1fr);gap:1rem;display:grid}.algo-card{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);flex-direction:column;gap:.65rem;padding:1.15rem 1.25rem;transition:all .2s;display:flex;position:relative;overflow:hidden}.algo-card:hover{border-color:var(--lucky-green);box-shadow:var(--shadow-md);transform:translateY(-2px)}.algo-card-head{justify-content:space-between;align-items:center;gap:.5rem;display:flex}.algo-pill{letter-spacing:.02em;border-radius:9999px;padding:.18rem .55rem;font-size:.72rem;font-weight:700}.pill-blue{color:#3b82f6;background:#3b82f61f;border:1px solid #3b82f640}.pill-purple{color:#a855f7;background:#a855f71f;border:1px solid #a855f740}.pill-green{color:#10b981;background:#10b9811f;border:1px solid #10b98140}.pill-amber{color:#f59e0b;background:#f59e0b1f;border:1px solid #f59e0b40}.algo-time-complexity,.algo-badge-tag{font-size:.72rem;font-family:var(--font-mono);color:var(--text-muted);background:var(--bg-subtle);border:1px solid var(--border-color);border-radius:4px;padding:.15rem .45rem}.algo-card-title{color:var(--text-primary);margin:0;font-size:.96rem;font-weight:700}.algo-card-desc{color:var(--text-secondary);margin:0;font-size:.82rem;line-height:1.5}.algo-card-desc code{background:var(--bg-subtle);color:var(--lucky-green);border:1px solid var(--border-color);border-radius:3px;padding:.12rem .35rem;font-size:.76rem}.algo-code-box{background:var(--bg-subtle);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:.45rem .65rem;overflow-x:auto}.algo-code-box 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.7rem;display:flex}.flow-num{background:var(--lucky-green);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;font-size:.75rem;font-weight:700;display:flex}.flow-text{flex-direction:column;line-height:1.25;display:flex}.flow-text strong{color:var(--text-primary);font-size:.78rem}.flow-text small{color:var(--text-muted);font-size:.68rem}.flow-arrow{color:var(--text-muted);opacity:.5;font-size:.85rem}@media (width<=768px){.algo-cards-grid{grid-template-columns:1fr}.algo-flow-steps{flex-direction:column;align-items:stretch}.flow-arrow{align-self:center;margin:.15rem 0;transform:rotate(90deg)}}.drop-overlay{border:2px dashed var(--lucky-green);border-radius:var(--radius-md);z-index:20;color:var(--lucky-green);pointer-events:none;background:#10b98114;justify-content:center;align-items:center;font-size:1.1rem;font-weight:600;display:none;position:absolute;inset:0}.pane.drag-over .drop-overlay{display:flex}@media (width<=768px){.tool-hero{flex-direction:column}.hero-actions{flex-wrap:wrap;width:100%}.toolbar{flex-direction:column;align-items:flex-start}.tb-sep{display:none}.tb-right{width:100%;margin-left:0}.status-bar{flex-direction:column;align-items:flex-start}.workspace{grid-template-columns:1fr}}