.app-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.app-main{display:flex;flex-direction:column;min-width:0;min-height:100vh;position:relative}.app-content{flex:1;padding:28px clamp(16px,4vw,48px) 80px;max-width:1100px;width:100%;margin:0 auto;animation:fade-up .35s ease both}.app-footer{border-top:1px solid var(--line);padding:16px 24px;text-align:center;color:var(--text-dim);font-size:.9rem}.navbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:12px;padding:14px 22px;background:color-mix(in srgb,var(--bg-1) 85%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.navbar-title{font-size:1.05rem;font-weight:600;color:var(--text);flex:1;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.navbar-actions{display:flex;align-items:center;gap:8px}.navbar-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:var(--radius-pill);background:linear-gradient(135deg,color-mix(in srgb,var(--accent-1) 18%,transparent),color-mix(in srgb,var(--accent-2) 18%,transparent));border:1px solid var(--line-strong);color:var(--text-soft);font-size:.8rem;font-weight:600}.icon-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border-radius:var(--radius-pill);background:var(--bg-2);border:1px solid var(--line);color:var(--text-soft);font:inherit;font-size:.85rem;font-weight:600;cursor:pointer;transition:background .15s ease,color .15s ease,transform .12s ease,border-color .15s ease}.icon-btn:hover{background:var(--bg-3);color:var(--text);border-color:var(--line-strong)}.icon-btn:active{transform:translateY(1px)}.icon-btn--round{padding:7px;width:36px;height:36px;justify-content:center}.icon-btn--primary{background:linear-gradient(135deg,color-mix(in srgb,var(--accent-1) 22%,transparent),color-mix(in srgb,var(--accent-2) 22%,transparent));border-color:var(--line-strong);color:var(--text)}.icon-btn--primary:hover{filter:brightness(1.05)}.icon-btn-kbd{font-family:var(--font-mono);font-size:.7rem;background:var(--bg-1);border:1px solid var(--line);border-radius:6px;padding:1px 5px;color:var(--text-muted)}.menu-btn{display:none;background:transparent;border:1px solid var(--line);color:var(--text);width:38px;height:38px;border-radius:var(--radius-sm);cursor:pointer;align-items:center;justify-content:center;transition:background .15s ease}.menu-btn:hover{background:var(--bg-3)}.sidebar{background:var(--bg-2);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:18px 14px;gap:18px;position:sticky;top:0;height:100vh;z-index:40}.sidebar-brand{display:flex;align-items:center;gap:12px;padding:8px 6px 14px;border-bottom:1px dashed var(--line)}.sidebar-brand strong{display:block;font-size:1rem;letter-spacing:.02em;color:var(--text)}.sidebar-brand span{display:block;font-size:.8rem;color:var(--text-muted)}.sidebar-logo{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;color:#0b1220;background:linear-gradient(135deg,var(--accent-1-soft),var(--accent-2-soft));box-shadow:var(--shadow-md)}.sidebar-nav{flex:1;overflow-y:auto}.sidebar-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}.nav-item{width:100%;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid transparent;background:transparent;color:var(--text-soft);font:inherit;font-size:.95rem;text-align:left;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s ease,color .15s ease,transform .12s ease}.nav-item:hover{background:var(--bg-3);color:var(--text)}.nav-item--active{background:linear-gradient(135deg,color-mix(in srgb,var(--accent-1) 18%,transparent),color-mix(in srgb,var(--accent-2) 18%,transparent));color:var(--text);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}.nav-item--close{display:none}.sidebar-footer{border-top:1px dashed var(--line);padding-top:10px}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;z-index:35}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:var(--radius-pill);font:inherit;font-weight:600;font-size:.95rem;cursor:pointer;border:1px solid transparent;transition:transform .12s ease,background .15s ease,border-color .15s ease}.btn:active{transform:translateY(1px)}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--accent-1-soft),var(--accent-2-soft));box-shadow:var(--shadow-md)}.btn-primary:hover{filter:brightness(1.05)}.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}.btn-ghost:hover{background:var(--bg-3)}.page{display:flex;flex-direction:column;gap:36px}.page-header h2{font-size:clamp(1.6rem,3vw,2.2rem);background:linear-gradient(135deg,var(--accent-1-soft),var(--accent-2-soft));-webkit-background-clip:text;background-clip:text;color:transparent}.page-lead{font-size:1.05rem;color:var(--text-muted);max-width:70ch}.block{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-md);padding:22px}.block h3{font-size:1.15rem;color:var(--text)}.block p{color:var(--text-soft)}.block-cta{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:linear-gradient(135deg,color-mix(in srgb,var(--accent-1) 8%,transparent),color-mix(in srgb,var(--accent-2) 8%,transparent)),var(--bg-2)}.block-cta h3{margin:0 0 4px}.block-cta p{margin:0;color:var(--text-muted)}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:center;background:linear-gradient(135deg,color-mix(in srgb,var(--accent-1) 8%,transparent),color-mix(in srgb,var(--accent-2) 8%,transparent)),var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(20px,4vw,36px);overflow:hidden}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:var(--radius-pill);background:color-mix(in srgb,var(--accent-1) 15%,transparent);color:var(--accent-1-soft);border:1px solid color-mix(in srgb,var(--accent-1) 35%,transparent);font-size:.8rem;font-weight:600;margin-bottom:12px}.hero-title{font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.1;margin-bottom:12px;color:var(--text)}.grad{background:linear-gradient(135deg,var(--accent-1-soft),var(--accent-2-soft));-webkit-background-clip:text;background-clip:text;color:transparent}.hero-subtitle{color:var(--text-muted);font-size:1.05rem;max-width:56ch}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.hero-illustration svg{width:100%;height:auto;filter:drop-shadow(0 8px 20px rgba(0,0,0,.25));opacity:var(--grid-illustration-opacity)}.grid-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.grid-cards--2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.grid-cards--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.card{display:block;width:100%;text-align:left;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-md);padding:18px;color:var(--text);font:inherit;transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease,background .15s ease;cursor:default}.card--clickable{cursor:pointer}.card--clickable:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-md);background:linear-gradient(135deg,color-mix(in srgb,var(--accent-1) 5%,transparent),color-mix(in srgb,var(--accent-2) 5%,transparent))}.card-header{display:flex;align-items:flex-start;gap:12px;margin-bottom:10px}.card-icon{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:color-mix(in srgb,var(--accent-2) 15%,transparent);color:var(--accent-2-soft);flex:0 0 auto}.card-title{font-size:1rem;margin:0;color:var(--text)}.card-subtitle{margin:2px 0 0;font-size:.85rem;color:var(--text-muted)}.card-body p{margin:0;color:var(--text-soft);font-size:.92rem}.card--success{border-color:color-mix(in srgb,var(--success) 35%,transparent)}.card--success .card-icon{background:color-mix(in srgb,var(--success) 15%,transparent);color:#4ade80}.card--warning{border-color:color-mix(in srgb,var(--warning) 35%,transparent)}.card--warning .card-icon{background:color-mix(in srgb,var(--warning) 15%,transparent);color:#fbbf24}.card--danger{border-color:color-mix(in srgb,var(--danger) 35%,transparent)}.card--danger .card-icon{background:color-mix(in srgb,var(--danger) 15%,transparent);color:#f87171}.card--info{border-color:color-mix(in srgb,var(--info) 35%,transparent)}.card--info .card-icon{background:color-mix(in srgb,var(--info) 15%,transparent);color:#7dd3fc}.accordion{display:flex;flex-direction:column;gap:8px}.accordion-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--bg-1);overflow:hidden;transition:border-color .15s ease}.accordion-item--open{border-color:var(--line-strong)}.accordion-trigger{display:flex;width:100%;align-items:center;justify-content:space-between;background:transparent;border:0;color:var(--text);font:inherit;font-weight:600;padding:12px 14px;cursor:pointer;text-align:left}.accordion-trigger:hover{background:var(--bg-3)}.accordion-trigger .icon.rot{transform:rotate(180deg)}.accordion-trigger .icon{transition:transform .2s ease}.accordion-content-inner{padding:0 14px 14px;color:var(--text-soft)}.stepper{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.step{display:flex;gap:12px;padding:14px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--bg-1);cursor:pointer;transition:border-color .15s ease,background .15s ease,transform .15s ease}.step:hover{border-color:var(--line-strong);transform:translateY(-1px)}.step--active{border-color:var(--accent-1-soft);background:linear-gradient(135deg,color-mix(in srgb,var(--accent-1) 12%,transparent),color-mix(in srgb,var(--accent-2) 12%,transparent));box-shadow:var(--shadow-glow)}.step-num{width:32px;height:32px;border-radius:999px;background:linear-gradient(135deg,var(--accent-1-soft),var(--accent-2-soft));color:#0b1220;font-weight:800;display:grid;place-items:center;flex:0 0 auto}.step p{margin:4px 0 0;color:var(--text-muted);font-size:.9rem}.code-compare{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;margin-top:10px}.code-block{background:var(--code-bg);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden}.code-tag{padding:8px 12px;font-size:.8rem;font-weight:700;letter-spacing:.02em;border-bottom:1px solid var(--line)}.code-tag--good{color:#4ade80;background:color-mix(in srgb,var(--success) 8%,transparent)}.code-tag--bad{color:#f87171;background:color-mix(in srgb,var(--danger) 8%,transparent)}.code-block pre{margin:0;padding:14px;font-size:.88rem;color:var(--code-text);overflow-x:auto;white-space:pre;background:var(--code-bg)}.list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.list li{display:flex;gap:10px;align-items:flex-start;color:var(--text-soft)}.list li code{background:var(--bg-1);border:1px solid var(--line);padding:1px 6px;border-radius:6px;color:var(--accent-1-soft);font-size:.85em}.numbered{padding-left:18px;display:flex;flex-direction:column;gap:8px}.numbered li{color:var(--text-soft)}.numbered li::marker{color:var(--accent-1-soft);font-weight:700}.quote{margin:0;padding:14px 18px;border-left:3px solid var(--accent-1-soft);background:color-mix(in srgb,var(--accent-1) 6%,transparent);border-radius:6px;color:var(--text);font-style:italic}.note{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;background:color-mix(in srgb,var(--warning) 8%,transparent);border:1px solid color-mix(in srgb,var(--warning) 30%,transparent);border-radius:var(--radius-sm);color:#fde68a;font-size:.92rem}.callout{margin-top:14px;padding:12px 14px;border-radius:var(--radius-sm);display:flex;gap:10px;align-items:center}.callout--success{background:color-mix(in srgb,var(--success) 10%,transparent);border:1px solid color-mix(in srgb,var(--success) 35%,transparent);color:#bbf7d0}.speech{padding:18px 22px;background:linear-gradient(135deg,color-mix(in srgb,var(--accent-1) 7%,transparent),color-mix(in srgb,var(--accent-2) 7%,transparent));border:1px dashed var(--line-strong);border-radius:var(--radius-md);color:var(--text-soft)}.speech p{margin:0}.analogy-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;margin-top:10px}.analogy-col{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-md);padding:16px}.analogy-tag{display:inline-block;padding:4px 10px;border-radius:var(--radius-pill);background:color-mix(in srgb,var(--success) 12%,transparent);color:#4ade80;font-size:.75rem;font-weight:700;margin-bottom:8px}.analogy-tag--bad{background:color-mix(in srgb,var(--danger) 12%,transparent);color:#f87171}.sim{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-md);padding:20px;display:flex;flex-direction:column;gap:14px}.sim-header h4{margin:0 0 4px;color:var(--text)}.sim-subtitle{margin:0;color:var(--text-muted);font-size:.9rem}.sim-label{font-size:.85rem;color:var(--text-muted);font-weight:600}.sim-desc{margin:0;font-size:.92rem;color:var(--text-soft);background:var(--bg-2);border:1px dashed var(--line);border-radius:var(--radius-sm);padding:8px 12px}.sim-input{width:100%;padding:12px 14px;background:var(--bg-0);border:1px solid var(--line-strong);border-radius:var(--radius-sm);color:var(--text);font:inherit;font-family:var(--font-mono);font-size:.95rem;transition:border-color .15s ease,box-shadow .15s ease}.sim-input:focus{outline:none;border-color:var(--accent-1-soft);box-shadow:var(--shadow-glow)}.sim-payloads{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}.sim-pill{border:1px solid var(--line);background:var(--bg-2);color:var(--text-soft);padding:6px 12px;border-radius:var(--radius-pill);font:inherit;font-size:.82rem;font-weight:600;cursor:pointer;transition:background .15s ease,color .15s ease,border-color .15s ease,transform .12s ease}.sim-pill:hover{background:var(--bg-3);color:var(--text);border-color:var(--line-strong)}.sim-pill--active{background:linear-gradient(135deg,color-mix(in srgb,var(--accent-1) 22%,transparent),color-mix(in srgb,var(--accent-2) 22%,transparent));color:var(--text);border-color:var(--line-strong);box-shadow:var(--shadow-glow)}.sim-queries{display:grid;grid-template-columns:1fr 1fr;gap:12px}.sim-query{border-radius:var(--radius-sm);border:1px solid var(--line);overflow:hidden}.sim-query--bad{border-color:color-mix(in srgb,var(--danger) 35%,transparent)}.sim-query--good{border-color:color-mix(in srgb,var(--success) 35%,transparent)}.sim-query-label{padding:8px 12px;font-size:.8rem;font-weight:700;display:flex;align-items:center;gap:6px;border-bottom:1px solid var(--line);color:var(--text)}.sim-query--bad .sim-query-label{background:color-mix(in srgb,var(--danger) 8%,transparent);color:#fca5a5}.sim-query--good .sim-query-label{background:color-mix(in srgb,var(--success) 8%,transparent);color:#86efac}.sim-pre{margin:0;padding:12px;font-size:.85rem;color:var(--code-text);background:var(--code-bg);overflow-x:auto;white-space:pre-wrap;word-break:break-all}.sim-comment{color:var(--text-dim)}.sim-string{color:#fbbf24}.sim-result{padding:12px 14px;border-radius:var(--radius-sm);font-size:.95rem;border:1px solid var(--line);background:var(--bg-2);color:var(--text)}.sim-result--muted{color:var(--text-muted)}.sim-result--success{background:color-mix(in srgb,var(--success) 8%,transparent);border-color:color-mix(in srgb,var(--success) 35%,transparent);color:#bbf7d0}.sim-result--danger{background:color-mix(in srgb,var(--danger) 8%,transparent);border-color:color-mix(in srgb,var(--danger) 35%,transparent);color:#fecaca}.sim-tip{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;background:color-mix(in srgb,var(--info) 7%,transparent);border:1px solid color-mix(in srgb,var(--info) 25%,transparent);border-radius:var(--radius-sm);color:var(--text-soft);font-size:.9rem}.sim-tip code{background:var(--bg-0);border:1px solid var(--line);padding:1px 6px;border-radius:6px;color:#fde68a}.sim-breakdown{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--bg-2);padding:16px;display:flex;flex-direction:column;gap:12px}.sim-breakdown-title{display:flex;align-items:center;gap:8px;margin:0;font-size:1rem;color:var(--text)}.sim-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}.sim-meta>div{display:flex;flex-direction:column;gap:2px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-sm);padding:8px 12px}.sim-meta-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted)}.sim-meta-value{color:var(--text-soft);font-size:.9rem}.sim-tokens{display:flex;flex-wrap:wrap;gap:6px;font-family:var(--font-mono);font-size:.85rem;background:var(--bg-0);border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px}.sim-token{display:inline-block;padding:2px 8px;border-radius:6px;white-space:pre}.sim-expl{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;counter-reset:expl}.sim-expl li{display:grid;grid-template-columns:180px 1fr;gap:12px;align-items:start;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px 12px;color:var(--text-soft);font-size:.92rem}.sim-expl li:before{counter-increment:expl;content:counter(expl);display:grid;place-items:center;width:24px;height:24px;border-radius:999px;background:linear-gradient(135deg,var(--accent-1-soft),var(--accent-2-soft));color:#0b1220;font-weight:800;font-size:.8rem;position:absolute;transform:translate(-36px,6px)}.sim-expl{position:relative;padding-left:36px}.sim-expl-token{display:inline-block;padding:2px 8px;border-radius:6px;font-family:var(--font-mono);font-size:.85rem;white-space:pre;width:max-content;max-width:100%;overflow:hidden;text-overflow:ellipsis}.progress{width:100%;height:10px;background:var(--bg-1);border:1px solid var(--line);border-radius:999px;overflow:hidden;margin:6px 0 8px}.progress-bar{height:100%;background:linear-gradient(90deg,var(--accent-1-soft),var(--accent-2-soft));transition:width .3s ease}.progress-label{margin:0 0 12px;font-size:.85rem;color:var(--text-muted)}.checklist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.checklist label{display:flex;gap:10px;align-items:center;padding:10px 12px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-sm);cursor:pointer;transition:border-color .15s ease,background .15s ease}.checklist label:hover{border-color:var(--line-strong);background:var(--bg-3)}.checklist input[type=checkbox]{accent-color:var(--accent-1-soft);width:18px;height:18px}.check-done{text-decoration:line-through;color:var(--text-muted)}.search-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:80;display:grid;place-items:start center;padding-top:12vh;animation:fade-up .2s ease both}.search-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:0}.search-modal{position:relative;z-index:1;width:min(640px,92vw);max-height:70vh;display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-md);overflow:hidden}.search-header{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text-muted)}.search-input{flex:1;background:transparent;border:0;outline:0;color:var(--text);font:inherit;font-size:1rem}.search-input::placeholder{color:var(--text-dim)}.search-kbd{font-family:var(--font-mono);font-size:.72rem;background:var(--bg-1);border:1px solid var(--line);border-radius:6px;padding:2px 6px;color:var(--text-muted)}.search-body{flex:1;overflow-y:auto;padding:8px}.search-hint{display:flex;gap:10px;align-items:flex-start;padding:16px;color:var(--text-muted);font-size:.92rem}.search-results{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}.search-result{display:block;width:100%;text-align:left;background:transparent;border:1px solid transparent;border-radius:var(--radius-sm);padding:10px 12px;color:var(--text);font:inherit;cursor:pointer;transition:background .15s ease,border-color .15s ease}.search-result:hover{background:var(--bg-3);border-color:var(--line-strong)}.search-result-top{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;font-weight:700}.search-result-section{color:var(--accent-1-soft)}.search-result-page{color:var(--text-dim)}.search-result-title{font-weight:600;font-size:.98rem;margin:4px 0 2px;color:var(--text)}.search-result-snippet{font-size:.88rem;color:var(--text-muted);line-height:1.4}.search-result-snippet mark{background:color-mix(in srgb,var(--accent-1) 30%,transparent);color:var(--text);border-radius:3px;padding:0 2px}.search-footer{display:flex;justify-content:space-between;padding:8px 14px;border-top:1px solid var(--line);font-size:.78rem;color:var(--text-muted);background:var(--bg-1)}.export-banner{position:fixed;bottom:20px;right:20px;display:flex;align-items:center;gap:10px;padding:12px 16px;background:var(--bg-2);border:1px solid var(--line-strong);border-radius:var(--radius-pill);color:var(--text);box-shadow:var(--shadow-md);z-index:60;font-size:.9rem;font-weight:600}.export-spinner{width:14px;height:14px;border:2px solid var(--line-strong);border-top-color:var(--accent-1-soft);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.icon{display:inline-block;vertical-align:middle}@media (max-width: 860px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;top:0;left:0;width:78%;max-width:320px;height:100vh;z-index:40;transform:translate(-100%);transition:transform .25s 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