@font-face{font-family:JetBrains Mono Local;src:url(/fonts/JetBrainsMono-Regular.ttf)format("truetype");font-style:normal;font-weight:400;font-display:swap}@font-face{font-family:JetBrains Mono Local;src:url(/fonts/JetBrainsMono-Bold.ttf)format("truetype");font-style:normal;font-weight:700;font-display:swap}:root{--bg:#f7f8fa;--surface:#fff;--surface-muted:#eef1f4;--text:#18212f;--text-soft:#5e6878;--text-secondary:#465466;--line:#dde2e9;--accent:#2458e6;--accent-soft:#e8eeff;--content-link:#315f91;--inline-code-text:#344256;--inline-code-bg:#edf0f3;--inline-code-line:#d8dde4;--media-bg:#f2f4f7;--media-toolbar:#eef1f5;--media-viewer-bg:#f2f4f7;--diagram-canvas:#f2f4f7;--diagram-text:#172033;--diagram-line:#6f7c91;--diagram-border:#d7e1ed;--diagram-blue-fill:#eaf2ff;--diagram-blue-stroke:#356ae6;--diagram-green-fill:#eaf8f1;--diagram-green-stroke:#159570;--diagram-amber-fill:#fff4dd;--diagram-amber-stroke:#d28a16;--diagram-red-fill:#fdecec;--diagram-red-stroke:#c94b4b;--diagram-purple-fill:#f1ebff;--diagram-purple-stroke:#7653c9;--diagram-neutral-fill:#f6f9fd;--diagram-neutral-stroke:#b9c8da;--code-font:"JetBrains Mono Local", "JetBrains Mono", "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", monospace;--success:#17805a;--max-width:1160px;--radius:16px;--shadow:0 12px 35px #18212f14;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}:root[data-theme=dark]{--bg:#11151d;--surface:#191f2a;--surface-muted:#242c39;--text:#edf1f7;--text-soft:#9ba7b8;--text-secondary:#bac4d1;--line:#303a49;--accent:#82a3ff;--accent-soft:#1f2e58;--content-link:#9ab5d6;--inline-code-text:#d9e0e9;--inline-code-bg:#252c36;--inline-code-line:#374150;--media-bg:#151c27;--media-toolbar:#171f2b;--media-viewer-bg:#151c27;--diagram-canvas:#151c27;--diagram-text:#e8eef6;--diagram-line:#93a3b8;--diagram-border:#344257;--diagram-blue-fill:#1d3156;--diagram-blue-stroke:#78a5ff;--diagram-green-fill:#173c35;--diagram-green-stroke:#58c9a4;--diagram-amber-fill:#493719;--diagram-amber-stroke:#e5b24e;--diagram-red-fill:#4a252b;--diagram-red-stroke:#e47d86;--diagram-purple-fill:#332657;--diagram-purple-stroke:#b99bff;--diagram-neutral-fill:#1b2533;--diagram-neutral-stroke:#52647c;--success:#5ed3a4;--shadow:0 15px 40px #00000040}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);min-width:320px;color:var(--text);margin:0}body.media-viewer-open{overflow:hidden}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}img{max-width:100%;display:block}button,input{font:inherit}.container{width:min(var(--max-width), calc(100% - 40px));margin-inline:auto}.narrow{max-width:780px}.muted{color:var(--text-soft)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.eyebrow{color:var(--accent);letter-spacing:.15em;text-transform:uppercase;margin:0 0 12px;font-size:.72rem;font-weight:750}.site-header{z-index:20;border-bottom:1px solid color-mix(in srgb, var(--line) 80%, transparent);background:color-mix(in srgb, var(--bg) 88%, transparent);backdrop-filter:blur(14px);position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:24px;min-height:76px;display:flex}.brand{letter-spacing:-.02em;align-items:center;gap:10px;font-weight:750;display:inline-flex}.brand-mark{color:#fff;background:var(--accent);letter-spacing:.04em;border-radius:10px;place-items:center;width:34px;height:34px;font-size:.7rem;display:grid}.header-actions{align-items:center;gap:12px;display:flex}.main-nav{align-items:center;gap:24px;font-size:.91rem;display:flex}.main-nav a{color:var(--text-soft);transition:color .2s}.main-nav a:hover,.main-nav a.active{color:var(--text)}.main-nav .nav-search{align-items:center;gap:5px;display:inline-flex}.header-return-link{border:1px solid var(--line);min-height:36px;color:var(--text);background:var(--surface);border-radius:6px;align-items:center;gap:7px;padding:0 11px;font-size:.8rem;font-weight:650;transition:border-color .2s,background-color .2s,color .2s;display:inline-flex;box-shadow:0 1px 2px #18212f08}.header-return-link:hover{border-color:color-mix(in srgb, var(--text-soft) 48%, var(--line));color:var(--text);background:var(--surface-muted)}.header-return-link span[aria-hidden]{color:var(--text-soft);font-size:1rem;line-height:1}.icon-button,.menu-toggle{cursor:pointer;border:1px solid var(--line);width:36px;height:36px;color:var(--text);background:var(--surface);border-radius:10px;place-items:center;display:inline-grid}.menu-toggle{display:none}.hero{grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);align-items:center;gap:48px;min-height:550px;display:grid}.hero h1{letter-spacing:-.07em;max-width:720px;margin:0;font-size:clamp(2.8rem,7vw,5.8rem);font-weight:720;line-height:.98}.hero h1 span{color:var(--accent)}.hero-lead{max-width:580px;color:var(--text-soft);margin:30px 0 0;font-size:1.15rem;line-height:1.75}.hero-actions{flex-wrap:wrap;gap:12px;margin-top:30px;display:flex}.button{border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:0 18px;font-size:.88rem;font-weight:700;transition:transform .2s,background .2s,border .2s;display:inline-flex}.button:hover{color:inherit;transform:translateY(-2px)}.button.primary{color:#fff;background:var(--accent)}.button.primary:hover{color:#fff;filter:brightness(1.08)}.button.secondary{border-color:var(--line);background:var(--surface)}.hero-aside{border:1px solid var(--line);background:var(--surface);min-height:360px;box-shadow:var(--shadow);border-radius:26px;position:relative;overflow:hidden}.hero-grid{background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);opacity:.42;background-size:40px 40px;position:absolute;inset:0;mask-image:linear-gradient(135deg,#000 0%,#0000 75%)}.hero-orb{background:radial-gradient(circle at 35% 30%, #a8bbff, var(--accent) 48%, #162b78);width:210px;height:210px;box-shadow:0 0 90px color-mix(in srgb, var(--accent) 55%, transparent);border-radius:50%;position:absolute;top:13%;right:16%}.hero-caption{color:var(--text-soft);letter-spacing:.16em;margin:0;font-size:.68rem;position:absolute;bottom:20px;right:22px}.section-block{padding-block:72px}.section-heading{justify-content:space-between;align-items:end;gap:24px;margin-bottom:24px;display:flex}.section-heading h2,.newsletter-card h2{letter-spacing:-.04em;margin:0;font-size:clamp(1.6rem,3vw,2.25rem)}.compact-heading{margin-bottom:18px;display:block}.text-link{color:var(--accent);font-size:.87rem;font-weight:700}.muted-link{color:var(--text-soft)}.card-grid{gap:18px;display:grid}.project-grid,.post-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);transition:transform .2s,box-shadow .2s,border-color .2s;overflow:hidden}.card:hover{border-color:color-mix(in srgb, var(--accent) 42%, var(--line));box-shadow:var(--shadow);transform:translateY(-4px)}.card-cover{aspect-ratio:1.9;object-fit:cover;border-bottom:1px solid var(--line);width:100%}.card-body{padding:22px}.card h3{letter-spacing:-.025em;margin:0;font-size:1.15rem}.card h3 a:hover{color:var(--accent)}.card p{color:var(--text-soft);margin:12px 0 18px;font-size:.9rem;line-height:1.65}.tag-row{flex-wrap:wrap;gap:7px;display:flex}.tag-row a,.tag-row span{color:var(--text-soft);font-size:.73rem}.tag-row a:hover{color:var(--accent)}.project-meta{min-height:22px}.status{color:var(--success);align-items:center;gap:6px;font-size:.72rem;font-weight:700;display:inline-flex}.status:before{content:"";background:currentColor;border-radius:50%;width:6px;height:6px}.status-completed{color:var(--text-soft)}.status-paused{color:#b27a2e}.card-actions{justify-content:space-between;gap:12px;margin-top:22px;display:flex}.documentation-project-card{min-height:100%}.documentation-project-body{flex-direction:column;height:100%;display:flex}.documentation-project-body .project-kind{margin:10px 0 8px}.documentation-project-body .card-actions{margin-top:auto;padding-top:22px}.newsletter-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface-muted);grid-template-columns:1.2fr 1fr auto;align-items:center;gap:28px;margin-block:48px 96px;padding:32px;display:grid}.newsletter-card p{color:var(--text-soft);margin:0;line-height:1.6}.page-header{padding:100px 0 42px}.page-header h1{letter-spacing:-.065em;margin:0;font-size:clamp(2.6rem,6vw,4.3rem)}.page-header>p:last-child{max-width:620px;color:var(--text-soft);margin:18px 0 0;font-size:1.08rem;line-height:1.7}.page-grid{padding-bottom:100px}.filter-row{flex-wrap:wrap;align-items:center;gap:8px;padding-bottom:24px;display:flex}.filter-label{margin-right:5px;font-size:.8rem}.filter-button{border:1px solid var(--line);color:var(--text-soft);background:var(--surface);cursor:pointer;border-radius:999px;padding:8px 13px;font-size:.78rem}.filter-button:hover,.filter-button.active{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.tag-cloud{flex-wrap:wrap;gap:12px;padding-bottom:100px;display:flex}.tag-cloud a{border:1px solid var(--line);background:var(--surface);border-radius:999px;align-items:center;gap:12px;padding:12px 15px;display:inline-flex}.tag-cloud a small{color:var(--text-soft)}.tag-cloud a:hover{border-color:var(--accent);color:var(--accent)}.course-container{width:min(1440px,100% - 40px)}.article-shell{padding:56px 0 110px}.course-layout{grid-template-columns:270px minmax(0,1fr);align-items:start;gap:48px;display:grid}.course-sidebar{scrollbar-width:thin;min-width:0;max-height:calc(100vh - 124px);padding-right:8px;position:sticky;top:100px;overflow:auto}.sidebar-heading{border-bottom:1px solid var(--line);padding:8px 0 20px}.sidebar-heading h2{letter-spacing:-.025em;margin:0;font-size:1.05rem}.sidebar-heading p:last-child{color:var(--text-soft);margin:8px 0 0;font-size:.76rem}.course-tree{padding-top:14px}.course-group{border-bottom:1px solid color-mix(in srgb, var(--line) 64%, transparent)}.course-group summary{cursor:pointer;justify-content:space-between;align-items:center;gap:12px;min-height:48px;padding:10px 3px;font-size:.91rem;font-weight:650;line-height:1.45;list-style:none;display:flex}.course-group summary::-webkit-details-marker{display:none}.course-group summary:after{content:"";border-bottom:1.5px solid;border-right:1.5px solid;flex:none;width:7px;height:7px;margin-right:4px;transition:transform .2s;transform:rotate(-45deg)}.course-group[open] summary:after{transform:rotate(45deg)}.course-group[open]>summary{color:var(--accent)}.course-group summary>span{flex:1}.course-group ol{gap:1px;margin:0;padding:0 0 12px 17px;list-style:none;display:grid}.course-group li a{color:var(--text-soft);align-items:baseline;gap:7px;padding:7px 4px;font-size:.84rem;line-height:1.5;display:flex}.course-group li a:hover,.course-group li.current a{color:var(--accent)}.course-group li.unnumbered a{padding-left:0;font-weight:620}.lesson-index{color:currentColor;font-variant-numeric:tabular-nums;flex:none;font-size:.76rem;font-weight:700}.article{min-width:0}.article-header{border-bottom:1px solid color-mix(in srgb, var(--line) 82%, transparent);max-width:920px;margin:0 auto 48px;padding-bottom:32px}.back-link{color:var(--text-soft);margin-bottom:30px;font-size:.86rem;display:inline-block}.back-link:hover{color:var(--accent)}.lesson-meta{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:9px;margin-bottom:18px;font-size:.76rem;line-height:1.4;display:flex}.lesson-phase{color:var(--text-secondary);font-weight:650}.lesson-chapter{border:1px solid var(--line);color:var(--text-soft);background:var(--surface-muted);border-radius:5px;padding:4px 8px;font-size:.72rem;font-weight:700}.article-header h1{letter-spacing:0;margin:0;font-size:clamp(2rem,4vw,3.2rem);line-height:1.16}.article-header .lead{max-width:820px;color:var(--text-secondary);margin:20px 0 0;font-size:1.04rem;line-height:1.8}.article-supporting-meta{border-top:1px solid color-mix(in srgb, var(--line) 72%, transparent);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 24px;margin-top:26px;padding-top:17px;display:flex}.reading-meta{color:var(--text-soft);font-variant-numeric:tabular-nums;align-items:center;gap:8px;font-size:.74rem;display:inline-flex}.reading-meta span[aria-hidden]{color:var(--line)}.article-header .tag-row{gap:12px}.article-header .tag-row a{color:var(--text-soft);font-size:.72rem;font-weight:600}.article-header .tag-row a:hover{color:var(--content-link)}.article-cover{object-fit:cover;border:1px solid var(--line);border-radius:var(--radius);width:100%;max-height:480px;margin-top:34px}.article-layout{grid-template-columns:minmax(0,1fr) 220px;align-items:start;gap:54px;display:grid}.toc{border-left:1px solid var(--line);scrollbar-width:thin;max-height:calc(100vh - 130px);padding-left:18px;position:sticky;top:104px;overflow:auto}.toc-title{color:var(--text);margin:0 0 13px;font-size:.95rem;font-weight:750}.toc ul{gap:9px;margin:0;padding:0;list-style:none;display:grid}.toc li{font-size:.82rem;line-height:1.45}.toc li.nested{padding-left:16px}.toc a{color:var(--text-soft)}.toc a:hover,.toc a.active{color:var(--accent)}.prose{min-width:0;color:var(--text);font-size:1.04rem;line-height:1.85}.prose>:first-child{margin-top:0}.prose h2{letter-spacing:-.04em;margin-top:2.1em;margin-bottom:.6em;font-size:1.65rem;line-height:1.25}.prose h3{margin-top:1.8em;margin-bottom:.5em;font-size:1.25rem}.prose p,.prose ul,.prose ol,.prose blockquote,.prose pre{margin:1.1em 0}.prose ul,.prose ol{padding-left:1.4em}.prose li{margin:.35em 0}.prose a{color:var(--content-link);text-decoration:underline;text-decoration-color:color-mix(in srgb, var(--content-link) 45%, transparent);text-underline-offset:3px;text-decoration-thickness:1px}.prose blockquote{border:1px solid color-mix(in srgb, var(--line) 88%, #c5cad2);border-left:3px solid color-mix(in srgb, var(--content-link) 72%, var(--line));color:var(--text-secondary);background:color-mix(in srgb, var(--surface-muted) 72%, var(--surface));border-radius:8px;padding:14px 18px}.prose code:not(pre code){border:1px solid var(--inline-code-line);color:var(--inline-code-text);background:var(--inline-code-bg);font-family:var(--code-font);letter-spacing:0;-webkit-box-decoration-break:clone;box-decoration-break:clone;border-radius:4px;padding:.13em .34em;font-size:.86em;font-weight:400;line-height:1.5}.prose table{border:1px solid var(--line);border-collapse:collapse;table-layout:fixed;width:100%;max-width:100%;margin:1.4em 0;font-size:.92rem}.prose th,.prose td{border:1px solid var(--line);vertical-align:top;text-align:left;overflow-wrap:anywhere;word-break:break-word;min-width:0;padding:10px 12px}.prose th{color:var(--text);background:var(--surface-muted);font-weight:750}.prose tbody tr:nth-child(2n) td{background:color-mix(in srgb, var(--surface-muted) 42%, var(--surface))}.prose table code{white-space:normal;overflow-wrap:anywhere;word-break:break-word}.prose pre{border:1px solid color-mix(in srgb, var(--line) 88%, #c5cad2);background:color-mix(in srgb, var(--surface-muted) 78%, var(--surface));font-family:var(--code-font);font-variant-ligatures:none;letter-spacing:0;tab-size:4;border-radius:8px;padding:18px 20px;font-size:.86rem;line-height:1.65;overflow-x:auto;box-shadow:0 1px 2px #18212f0a}.prose pre code{font-family:var(--code-font);font-size:inherit;font-variant-ligatures:none;letter-spacing:0;font-weight:400}.prose .content-media{border:1px solid var(--diagram-border);background:var(--diagram-canvas);border-radius:8px;width:100%;max-width:100%;margin:2em 0;overflow:hidden;box-shadow:0 8px 24px #2642660f}.prose .content-media[data-media-layout=portrait]{width:min(100%,560px);margin-inline:auto}.prose .content-media[data-media-layout=compact]{width:fit-content;margin-inline:auto}.prose .media-surface{background:var(--media-bg);cursor:default;outline:0;place-items:center;width:100%;min-width:0;min-height:120px;padding:clamp(20px,3.5vw,38px);display:grid;overflow:hidden}.prose .media-surface[data-zoom-enabled=true]{cursor:zoom-in}.prose .media-surface:focus-visible{box-shadow:inset 0 0 0 3px var(--accent-soft)}.prose .content-media img{object-fit:contain;border-radius:4px;width:auto;max-width:100%;height:auto;max-height:min(64vh,680px);margin:0 auto}.prose .content-media[data-media-layout=portrait] img{max-height:min(58vh,560px)}.prose .media-diagram{text-align:initial;padding:0}.prose .media-diagram svg{min-width:0;max-height:min(68vh,720px);color:var(--diagram-text);margin:0 auto;font-family:Inter,Noto Sans SC,Microsoft YaHei,system-ui,sans-serif;display:block;width:auto!important;max-width:100%!important;height:auto!important}.media-viewer-diagram{color:var(--diagram-text);background:0 0;font-family:Inter,Noto Sans SC,Microsoft YaHei,system-ui,sans-serif}.prose .media-diagram[data-diagram-type=sequence] svg{min-width:min(100%,620px)}.prose .media-diagram svg .node>rect,.media-viewer-diagram .node>rect{rx:7px;ry:7px}.prose .media-diagram svg .cluster>rect,.media-viewer-diagram .cluster>rect{rx:8px;ry:8px}.prose .media-diagram svg .cluster-label text,.prose .media-diagram svg .cluster-label span,.media-viewer-diagram .cluster-label text,.media-viewer-diagram .cluster-label span{color:var(--diagram-text)!important;fill:var(--diagram-text)!important;font-weight:700!important}.prose .media-diagram svg .edgeLabel,.media-viewer-diagram .edgeLabel{font-weight:650;font-size:12px!important}.prose .media-diagram svg .nodeLabel,.media-viewer-diagram .nodeLabel{line-height:1.45}.media-actionbar{border-top:1px solid var(--line);background:var(--media-toolbar);justify-content:flex-end;align-items:center;min-height:43px;padding:6px 9px;display:flex}.content-media[data-media-zoomable=false] .media-actionbar{display:none}.media-open-button{min-height:31px;color:var(--text-soft);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:5px;align-items:center;gap:7px;padding:0 9px;font-size:.75rem;font-weight:650;display:inline-flex}.media-open-button:hover{border-color:var(--line);color:var(--text);background:var(--surface)}.media-open-button span[aria-hidden]{font-size:1rem;line-height:1}.media-viewer{width:100vw;max-width:none;height:100dvh;max-height:none;color:var(--text);background:0 0;border:0;margin:0;padding:0;overflow:hidden}.media-viewer::backdrop{backdrop-filter:blur(8px);background:#0a0e14c2}.media-viewer-shell{background:var(--media-viewer-bg);grid-template-rows:64px minmax(0,1fr);width:100%;height:100%;display:grid}.media-viewer-toolbar{z-index:2;border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--surface) 94%, transparent);justify-content:space-between;align-items:center;gap:18px;min-width:0;padding:0 18px;display:flex;position:relative}.media-viewer-heading{align-items:baseline;gap:12px;min-width:0;display:flex}.media-viewer-title,.media-viewer-heading p{text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:.86rem;font-weight:700;overflow:hidden}.media-viewer-zoom{color:var(--text-soft);font-variant-numeric:tabular-nums;flex:none;font-size:.72rem}.media-viewer-controls{flex:none;align-items:center;gap:6px;display:flex}.media-viewer-controls button{cursor:pointer;border:1px solid var(--line);width:36px;height:36px;color:var(--text);background:var(--surface);border-radius:6px;place-items:center;padding:0;font-size:.82rem;font-weight:700;display:inline-grid}.media-viewer-controls button:hover{background:var(--surface-muted)}.media-viewer-controls button:last-child{margin-left:6px;font-size:1.15rem}.media-viewer-viewport{background:var(--diagram-canvas);cursor:grab;touch-action:none;user-select:none;outline:0;min-width:0;min-height:0;position:relative;overflow:hidden}.media-viewer-viewport.is-dragging{cursor:grabbing}.media-viewer-content{transform-origin:50%;will-change:transform;place-items:center;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.media-viewer-media{object-fit:contain;pointer-events:none;user-select:none;width:auto;max-width:none;height:auto;max-height:none;display:block}.article-nav{border-top:1px solid var(--line);grid-template-columns:1fr 1fr;gap:24px;margin-top:70px;padding-top:24px;display:grid}.article-nav a{gap:8px;display:grid}.article-nav .next{text-align:right}.article-nav strong{font-size:.95rem;line-height:1.45}.nav-placeholder{min-height:1px}.course-index-header{padding-bottom:36px}.course-index-header>p:last-of-type{max-width:700px}.course-summary{color:var(--text-soft);flex-wrap:wrap;align-items:baseline;gap:6px 10px;margin-top:28px;display:flex}.course-summary strong{color:var(--text);letter-spacing:-.04em;font-size:1.6rem}.course-summary span{margin-right:14px;font-size:.78rem}.course-overview{padding-bottom:110px}.course-overview-group{border-top:1px solid var(--line);padding:30px 0 34px}.course-overview-group>header{justify-content:space-between;align-items:end;gap:24px;margin-bottom:16px;display:flex}.course-overview-group h2{letter-spacing:-.035em;margin:0;font-size:1.5rem}.course-overview-group ol{margin:0;padding:0;list-style:none}.course-overview-group li{border-top:1px solid color-mix(in srgb, var(--line) 74%, transparent)}.course-overview-group li:last-child{border-bottom:1px solid color-mix(in srgb, var(--line) 74%, transparent)}.course-overview-group li a{grid-template-columns:34px minmax(180px,.8fr) minmax(220px,1fr) 20px;align-items:center;gap:14px;padding:15px 8px;display:grid}.course-overview-group li a:hover{background:var(--surface-muted)}.course-overview-title{font-size:.94rem;font-weight:700}.course-overview-description{color:var(--text-soft);text-overflow:ellipsis;white-space:nowrap;font-size:.78rem;line-height:1.45;overflow:hidden}.course-overview-arrow{color:var(--accent);text-align:right;font-size:1.1rem}.comments,.related-posts{border-top:1px solid var(--line);margin-top:80px;padding-top:38px}.share-row{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:14px;margin-top:34px;padding-top:22px;display:flex}.share-row .eyebrow{margin:0 8px 0 0}.share-row a,.share-row button{color:var(--text-soft);cursor:pointer;background:0 0;border:0;padding:0;font-size:.78rem}.share-row a:hover,.share-row button:hover{color:var(--accent)}.copy-status{color:var(--success);font-size:.75rem}.comment-placeholder{border:1px dashed var(--line);border-radius:12px;padding:22px;font-size:.9rem}.project-links{flex-wrap:wrap;gap:10px;margin-top:24px;display:flex}.project-article .prose{max-width:780px}.about-copy{padding-bottom:100px}.empty-page{text-align:center;min-height:65vh;padding-top:150px}.empty-page h1{letter-spacing:-.06em;margin:0;font-size:clamp(2.2rem,6vw,4.2rem)}.empty-page p:not(.eyebrow){color:var(--text-soft);margin:18px auto 28px}.search-box{padding-bottom:120px}.search-box input{border:1px solid var(--line);width:100%;color:var(--text);background:var(--surface);border-radius:11px;outline:0;padding:15px 17px}.search-box input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.search-results{gap:12px;margin-top:24px;display:grid}.search-result{border:1px solid var(--line);background:var(--surface);border-radius:11px;padding:17px 18px}.search-result h2{margin:0;font-size:1.05rem}.search-result p{color:var(--text-soft);margin:8px 0 0;font-size:.86rem;line-height:1.6}.site-footer{border-top:1px solid var(--line)}.footer-inner{grid-template-columns:1fr auto;gap:8px 36px;padding:34px 0 40px;display:grid}.footer-title{margin:0 0 8px;font-weight:750}.footer-inner p{margin-block:0;font-size:.82rem}.footer-links{align-items:start;gap:18px;font-size:.82rem;display:flex}.footer-copy{grid-column:1/-1;padding-top:16px}@media (width<=820px){.container{width:min(var(--max-width), calc(100% - 32px))}.course-container{width:min(100%,100% - 32px)}.menu-toggle{display:inline-grid}.main-nav{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);border-radius:13px;flex-direction:column;align-items:stretch;gap:0;padding:8px;display:none;position:absolute;top:76px;left:16px;right:16px}.main-nav.open{display:flex}.main-nav a,.main-nav .icon-button{padding:12px}.main-nav .icon-button{align-self:start}.hero{grid-template-columns:1fr;gap:30px;min-height:auto;padding-block:74px 54px}.hero-aside{min-height:250px}.project-grid,.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.newsletter-card{grid-template-columns:1fr}.course-layout{display:block}.course-sidebar{border-bottom:1px solid var(--line);max-height:360px;margin-bottom:34px;padding-right:0;position:static;overflow:auto}.course-tree{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px;display:grid}.article-layout{grid-template-columns:1fr}.toc{border-top:1px solid var(--line);border-left:0;order:-1;padding:16px 0 0;position:static}.course-overview-group>header{flex-direction:column;align-items:start;gap:10px}.course-overview-group li a{grid-template-columns:30px minmax(0,1fr) 20px;gap:10px}.course-overview-description{display:none}}@media (width<=560px){.hero h1{font-size:clamp(2.65rem,15vw,4rem)}.project-grid,.post-grid{grid-template-columns:1fr}.section-heading{flex-direction:column;align-items:start;gap:12px}.page-header{padding-top:70px}.article-shell{padding-top:54px}.article-header{padding-bottom:26px}.article-header .lead{font-size:1rem;line-height:1.75}.article-supporting-meta{flex-direction:column;align-items:flex-start;gap:12px;margin-top:22px}.course-tree,.article-nav{grid-template-columns:1fr}.article-nav .next{text-align:left}.footer-inner{grid-template-columns:1fr}.footer-copy{grid-column:auto}}
