.lcp-theme-dark{--lcp-bg:#0c0e14;--lcp-bg-card:#12151f;--lcp-bg-header:#171b26;--lcp-bg-toolbar:#0f111a;--lcp-bg-row-hover:#1a1f2e;--lcp-bg-search:#141721;--lcp-bg-tab-group:#1a1f2c;--lcp-bg-tab-active:#fff;--lcp-bg-pill-easy:#00b8a31f;--lcp-bg-pill-medium:#ffc01e1f;--lcp-bg-pill-hard:#ff375f1f;--lcp-bg-skeleton:#1e2337;--lcp-bg-shimmer:linear-gradient(90deg,#1e2337 25%,#252d42 50%,#1e2337 75%);--lcp-bg-tag:#f973161a;--lcp-bg-indicator:#f9731614;--lcp-text-primary:#f1f5f9;--lcp-text-secondary:#94a3b8;--lcp-text-muted:#64748b;--lcp-text-pill-easy:#00b8a3;--lcp-text-pill-medium:#ffc01e;--lcp-text-pill-hard:#ff375f;--lcp-text-tab-active:#0f172a;--lcp-text-tag:#f97316;--lcp-text-indicator:#f97316;--lcp-border:#232838;--lcp-border-subtle:#1e2433;--lcp-border-search:#232838;--lcp-border-tab-active:transparent;--lcp-border-indicator:#f973164d;--lcp-orange:#f97316;--lcp-orange-dark:#ea580c;--lcp-orange-light:#f9731626;--lcp-orange-btn-text:#fff;--lcp-shadow-card:0 10px 30px -10px #00000080;--lcp-shadow-search-focus:0 0 0 3px #f9731638;--lcp-row-title-hover:#f97316;--lcp-solve-link-color:#64748b;--lcp-solve-link-hover:#f97316;--lcp-theme-btn-bg:#ffffff12;--lcp-theme-btn-border:#ffffff1f;--lcp-theme-btn-color:#94a3b8;--lcp-end-color:#475569;--lcp-empty-icon-color:#334155}.lcp-theme-light{--lcp-bg:#f8f9fb;--lcp-bg-card:#fff;--lcp-bg-header:#fff;--lcp-bg-toolbar:#f8f9fb;--lcp-bg-row-hover:#fff7ed;--lcp-bg-search:#f8fafc;--lcp-bg-tab-group:#f1f5f9;--lcp-bg-tab-active:#fff;--lcp-bg-pill-easy:#ecfdf5;--lcp-bg-pill-medium:#fffbeb;--lcp-bg-pill-hard:#fef2f2;--lcp-bg-skeleton:#e8edf5;--lcp-bg-shimmer:linear-gradient(90deg,#e8edf5 25%,#dde3ee 50%,#e8edf5 75%);--lcp-bg-tag:#fff7ed;--lcp-bg-indicator:#fff7ed;--lcp-text-primary:#0f172a;--lcp-text-secondary:#334155;--lcp-text-muted:#64748b;--lcp-text-pill-easy:#047857;--lcp-text-pill-medium:#b45309;--lcp-text-pill-hard:#b91c1c;--lcp-text-tab-active:#0f172a;--lcp-text-tag:#ea580c;--lcp-text-indicator:#ea580c;--lcp-border:#e2e8f0;--lcp-border-subtle:#f1f5f9;--lcp-border-search:#cbd5e1;--lcp-border-tab-active:transparent;--lcp-border-indicator:#fed7aa;--lcp-orange:#ea580c;--lcp-orange-dark:#c2410c;--lcp-orange-light:#fff7ed;--lcp-orange-btn-text:#fff;--lcp-shadow-card:0 4px 20px #0000000d;--lcp-shadow-search-focus:0 0 0 3px #ea580c2e;--lcp-row-title-hover:#ea580c;--lcp-solve-link-color:#64748b;--lcp-solve-link-hover:#ea580c;--lcp-theme-btn-bg:#f1f5f9;--lcp-theme-btn-border:#e2e8f0;--lcp-theme-btn-color:#334155;--lcp-end-color:#64748b;--lcp-empty-icon-color:#94a3b8}.lcp-wrapper{background-color:var(--lcp-bg);min-height:100vh;color:var(--lcp-text-primary);flex-direction:column;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,SF Pro Text,Inter,sans-serif;transition:background-color .25s,color .25s;display:flex}.lcp-main{box-sizing:border-box;flex:1;width:100%;max-width:1100px;margin:0 auto;padding:2rem 1.5rem 5rem}.lcp-page-header{border-bottom:1px solid var(--lcp-border);justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.5rem;padding-bottom:1.25rem;display:flex}.lcp-page-header-left{align-items:center;gap:.85rem;display:flex}.lcp-page-title{color:var(--lcp-text-primary);letter-spacing:-.03em;margin:0;font-size:2rem;font-weight:800}.lcp-total-pill{background:var(--lcp-orange-light);color:var(--lcp-orange);border:1px solid var(--lcp-border-indicator);letter-spacing:.2px;border-radius:9999px;flex-shrink:0;padding:.3rem .8rem;font-size:.78rem;font-weight:700}.lcp-theme-toggle{background:var(--lcp-theme-btn-bg);border:1px solid var(--lcp-theme-btn-border);color:var(--lcp-theme-btn-color);cursor:pointer;border-radius:9999px;align-items:center;gap:.45rem;padding:.48rem .95rem;font-size:.83rem;font-weight:600;transition:all .2s;display:inline-flex}.lcp-theme-toggle:hover{background:var(--lcp-orange-light);border-color:var(--lcp-border-indicator);color:var(--lcp-orange)}.lcp-toolbar{flex-wrap:wrap;align-items:center;gap:.85rem;margin-bottom:1rem;display:flex}.lcp-search-form{flex:1;align-items:center;gap:.5rem;min-width:0;display:flex}.lcp-search-box{flex:1;align-items:center;min-width:0;max-width:380px;display:flex;position:relative}.lcp-search-icon{color:var(--lcp-text-muted);pointer-events:none;flex-shrink:0;position:absolute;left:.9rem}.lcp-search-input{background:var(--lcp-bg-search);border:1px solid var(--lcp-border-search);width:100%;color:var(--lcp-text-primary);box-sizing:border-box;border-radius:9999px;outline:none;padding:.6rem 2.2rem .6rem 2.4rem;font-size:.88rem;transition:all .2s}.lcp-search-input::placeholder{color:var(--lcp-text-muted)}.lcp-search-input:focus{background:var(--lcp-bg-card);border-color:var(--lcp-orange);box-shadow:var(--lcp-shadow-search-focus)}.lcp-search-clear{color:var(--lcp-text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:2px;display:flex;position:absolute;right:.8rem}.lcp-search-clear:hover{color:var(--lcp-text-primary)}.lcp-search-submit{background:var(--lcp-orange);color:#fff;cursor:pointer;white-space:nowrap;border:none;border-radius:9999px;flex-shrink:0;align-items:center;gap:.4rem;padding:.6rem 1.15rem;font-size:.88rem;font-weight:600;transition:all .2s;display:inline-flex;box-shadow:0 2px 8px #f973164d}.lcp-search-submit:hover{background:var(--lcp-orange-dark);transform:translateY(-1px);box-shadow:0 4px 14px #f9731666}.lcp-search-submit:active{transform:translateY(0)}.lcp-diff-tabs{background:var(--lcp-bg-tab-group);border-radius:9999px;flex-shrink:0;align-items:center;gap:2px;padding:3px;display:flex}.lcp-diff-tab{cursor:pointer;color:var(--lcp-text-secondary);background:0 0;border:none;border-radius:9999px;padding:.4rem .95rem;font-size:.83rem;font-weight:600;transition:all .2s}.lcp-diff-tab:hover{color:var(--lcp-text-primary)}.lcp-diff-tab.active{background:var(--lcp-orange);color:#fff;box-shadow:0 2px 6px #f9731659}.lcp-search-indicator{background:var(--lcp-bg-indicator);border:1px solid var(--lcp-border-indicator);color:var(--lcp-text-indicator);border-radius:10px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1rem;padding:.6rem 1rem;font-size:.85rem;display:flex}.lcp-clear-filters-btn{color:var(--lcp-text-indicator);cursor:pointer;background:0 0;border:none;border-radius:6px;flex-shrink:0;align-items:center;gap:.3rem;padding:.2rem .5rem;font-size:.82rem;font-weight:600;transition:background .15s;display:inline-flex}.lcp-clear-filters-btn:hover{background:#f973161f}.lcp-list-rows{flex-direction:column;gap:.85rem;margin-bottom:2rem;display:flex}.lcp-row-card{background:var(--lcp-bg-card);border:1px solid var(--lcp-border);box-shadow:var(--lcp-shadow-card);border-radius:14px;justify-content:space-between;align-items:center;gap:1.25rem;padding:1.05rem 1.4rem;transition:all .2s cubic-bezier(.16,1,.3,1);display:flex}.lcp-row-card:hover{border-color:var(--lcp-orange);transform:translateY(-2px);box-shadow:0 6px 22px #f973161f}.lcp-theme-dark .lcp-row-card{background:#141721;border-color:#232838}.lcp-theme-dark .lcp-row-card:hover{background:#181d2a;border-color:#f97316;box-shadow:0 6px 24px #00000073}.lcp-theme-light .lcp-row-card{background:#fff;border-color:#e2e8f0}.lcp-theme-light .lcp-row-card:hover{background:#fff;border-color:#ea580c;box-shadow:0 6px 20px #ea580c17}.lcp-row-left{flex:1;align-items:center;gap:1.15rem;min-width:0;display:flex}.lcp-row-order{background:var(--lcp-orange-light);width:46px;height:40px;color:var(--lcp-orange);border:1px solid var(--lcp-border-indicator);-webkit-user-select:none;user-select:none;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;font-family:inherit;font-size:.94rem;font-weight:800;display:flex}.lcp-row-content{flex-direction:column;flex:1;gap:.4rem;min-width:0;display:flex}.lcp-row-title-row{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.lcp-row-title-link{color:inherit;align-items:center;min-width:0;text-decoration:none;display:inline-flex}.lcp-row-title{color:var(--lcp-text-primary);word-break:break-word;margin:0;font-size:1.05rem;font-weight:700;line-height:1.35;transition:color .15s}.lcp-row-title-link:hover .lcp-row-title{color:var(--lcp-orange)}.lcp-badge{text-transform:capitalize;letter-spacing:.3px;border-radius:9999px;flex-shrink:0;align-items:center;padding:.18rem .65rem;font-size:.72rem;font-weight:700;display:inline-flex}.lcp-badge-easy{color:#059669;background:#10b9811f;border:1px solid #10b98147}.lcp-theme-dark .lcp-badge-easy{color:#34d399;background:#10b98126;border-color:#10b98159}.lcp-badge-medium{color:#d97706;background:#f59e0b1f;border:1px solid #f59e0b47}.lcp-theme-dark .lcp-badge-medium{color:#fbbf24;background:#f59e0b26;border-color:#f59e0b59}.lcp-badge-hard{color:#dc2626;background:#ef44441f;border:1px solid #ef444447}.lcp-theme-dark .lcp-badge-hard{color:#f87171;background:#ef444426;border-color:#ef444459}.lcp-row-topics-row{flex-wrap:wrap;align-items:center;gap:.45rem;display:flex}.lcp-tag{background:var(--lcp-bg-tag);color:var(--lcp-text-tag);border:1px solid var(--lcp-border-indicator);border-radius:6px;align-items:center;padding:.18rem .55rem;font-size:.72rem;font-weight:600;transition:all .15s;display:inline-flex}.lcp-theme-dark .lcp-tag{color:#fb923c;background:#f973161a;border-color:#f9731638}.lcp-theme-light .lcp-tag{color:#ea580c;background:#fff7ed;border-color:#fed7aa}.lcp-row-actions{flex-shrink:0;align-items:center;display:flex}.lcp-solve-btn{background:var(--lcp-orange);white-space:nowrap;border-radius:9999px;align-items:center;gap:.45rem;padding:.52rem 1.15rem;font-size:.86rem;font-weight:700;text-decoration:none;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex;box-shadow:0 2px 8px #f9731640;color:#fff!important}.lcp-solve-btn:hover{background:var(--lcp-orange-dark);transform:translate(2px);box-shadow:0 4px 14px #f9731666}.lcp-solve-btn:active{transform:translateY(0)}.lcp-view-more-wrap{justify-content:center;padding:1.75rem 0 .5rem;display:flex}.lcp-view-more-btn{background:var(--lcp-bg-card);color:var(--lcp-text-primary);border:1px solid var(--lcp-border);cursor:pointer;box-shadow:var(--lcp-shadow-card);border-radius:9999px;align-items:center;gap:.5rem;padding:.72rem 2.2rem;font-size:.92rem;font-weight:600;transition:all .2s;display:inline-flex}.lcp-view-more-btn:hover{border-color:var(--lcp-orange);color:var(--lcp-orange);transform:translateY(-1px);box-shadow:0 4px 14px #f973162e}.lcp-view-more-btn:disabled{opacity:.65;cursor:not-allowed;transform:none}.lcp-end-indicator{text-align:center;color:var(--lcp-end-color);padding:1.5rem 0 .5rem;font-size:.8rem;font-weight:500}.lcp-skeleton-list{background:var(--lcp-bg-card);border:1px solid var(--lcp-border);border-radius:16px;flex-direction:column;gap:0;display:flex;overflow:hidden}.lcp-skeleton-row{border-bottom:1px solid var(--lcp-border-subtle);align-items:center;gap:1rem;padding:1rem 1.5rem;display:flex}.lcp-skeleton-row:last-child{border-bottom:none}.lcp-skeleton-id{border-radius:6px;flex-shrink:0;width:36px;height:18px}.lcp-skeleton-body{flex-direction:column;flex:1;gap:.5rem;display:flex}.lcp-skeleton-title{border-radius:8px;width:55%;max-width:320px;height:17px}.lcp-skeleton-pills{gap:.4rem;display:flex}.lcp-skeleton-pill{border-radius:6px;height:14px}.lcp-skeleton-diff{border-radius:9999px;flex-shrink:0;width:60px;height:22px}.lcp-shimmer{background:var(--lcp-bg-skeleton);background-size:200% 100%;animation:1.4s infinite lcp-shimmer-anim}@keyframes lcp-shimmer-anim{0%{background-position:200% 0}to{background-position:-200% 0}}.lcp-theme-light .lcp-shimmer{background:linear-gradient(90deg,#e8edf5 25%,#dde3ee 50%,#e8edf5 75%) 0 0/200% 100%;animation:1.4s infinite lcp-shimmer-anim}@keyframes lcp-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.lcp-spinner{animation:.9s linear infinite lcp-spin}.lcp-empty-state,.lcp-error-state{text-align:center;color:var(--lcp-text-secondary);flex-direction:column;align-items:center;gap:.75rem;padding:4rem 2rem;display:flex}.lcp-empty-state svg,.lcp-error-state svg{color:var(--lcp-empty-icon-color);margin-bottom:.5rem}.lcp-empty-state h3,.lcp-error-state h3{color:var(--lcp-text-primary);margin:0;font-size:1.15rem}.lcp-empty-state p,.lcp-error-state p{color:var(--lcp-text-secondary);margin:0;font-size:.9rem}.lcp-retry-btn{background:var(--lcp-orange);color:#fff;cursor:pointer;border:none;border-radius:9999px;margin-top:.5rem;padding:.6rem 1.4rem;font-size:.88rem;font-weight:600;transition:all .2s;box-shadow:0 2px 8px #f973164d}.lcp-retry-btn:hover{background:var(--lcp-orange-dark);transform:translateY(-1px)}@media (max-width:768px){.lcp-main{padding:1.5rem 1rem 5rem}.lcp-page-title{font-size:1.55rem}.lcp-toolbar{flex-direction:column;align-items:stretch;gap:.65rem}.lcp-search-form{width:100%}.lcp-search-box{flex:1;max-width:100%}.lcp-diff-tabs{justify-content:space-between;width:100%;overflow-x:auto}.lcp-diff-tab{text-align:center;flex:1;padding:.38rem .5rem;font-size:.78rem}.lcp-col-topics,.lcp-col-action{display:none}.lcp-col-diff{width:90px}.lcp-table-head .lcp-col-topics,.lcp-table-head .lcp-col-action{display:none}.lcp-row{padding:.9rem 1rem}.lcp-search-indicator{flex-direction:column;align-items:flex-start;gap:.5rem}}@media (max-width:480px){.lcp-page-header{flex-direction:column;align-items:flex-start}.lcp-theme-toggle{align-self:flex-end;margin-top:-2.5rem}}