:root{color-scheme:light;--bg: #f5f7f1;--ink: #1d211c;--muted: #5e665c;--line: #d7ddcf;--paper: #fffef8;--paper-deep: #f0f2e8;--teal: #2f7f6f;--rust: #7f4b3d;--charcoal: #252820;--mono: "Markdown CJK Mono", "Maple Mono CN", "Maple Mono NF CN", "Maple Mono Normal NF CN", "Maple Mono Normal CN", "Maple Mono", "Noto Sans Mono CJK SC", "Noto Sans Mono CJK TC", "Noto Sans Mono CJK JP", "Noto Sans Mono CJK KR", "Source Han Mono SC", "Source Han Mono CN", "Sarasa Mono SC", "LXGW WenKai Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Markdown CJK Mono,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}a{color:inherit}.site-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem clamp(1rem,4vw,3rem);border-bottom:1px solid rgba(29,33,28,.1);background:var(--bg)}.brand{display:inline-flex;align-items:center;gap:.7rem;font-weight:750;text-decoration:none}.brand-mark{display:inline-grid;width:2rem;height:2rem;place-items:center;border:1px solid var(--ink);background:var(--ink);color:var(--paper);font-family:var(--mono);font-size:.95rem}.nav{display:flex;align-items:center;gap:clamp(.6rem,2vw,1.4rem);color:var(--muted);font-size:.95rem}.nav a{text-decoration:none}.nav a:hover,.nav a[aria-current=page],.text-link:hover,.source-item a:hover,.essay-card a:hover{color:var(--rust)}.site-main{width:min(100% - 2rem,980px);margin:0 auto;padding:clamp(2rem,4vw,4rem) 0}.site-main.wide{width:min(100% - 2rem,1180px)}.hero{display:grid;grid-template-columns:minmax(0,.95fr) minmax(320px,.8fr);gap:clamp(2rem,4vw,4rem);align-items:center;min-height:auto;padding:clamp(2rem,5vw,5rem) 0 clamp(2rem,4vw,4rem);border-bottom:1px solid var(--line)}.hero-copy{max-width:760px}.eyebrow{margin:0 0 .8rem;color:var(--teal);font-size:.72rem;font-weight:760;text-transform:uppercase}h1,h2,h3,p{overflow-wrap:anywhere}h1{max-width:12ch;margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(2.6rem,5.2vw,4.7rem);font-weight:520;line-height:1}.hero h1{max-width:14ch;font-size:clamp(2.8rem,5vw,4.6rem)}.lede{max-width:68ch;margin:1.25rem 0 0;color:var(--muted);font-size:1.08rem;line-height:1.6}.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem}.button{display:inline-flex;align-items:center;min-height:2.55rem;padding:.65rem .9rem;border:1px solid var(--ink);border-radius:0;font-size:.95rem;font-weight:680;text-decoration:none}.button.primary{background:var(--ink);color:var(--paper)}.button.secondary{background:transparent}.artifact{margin:0;border:1px solid var(--line);background:var(--paper)}.artifact figcaption{display:flex;align-items:center;justify-content:space-between;padding:.8rem 1rem;border-bottom:1px solid var(--line);background:var(--paper-deep);color:var(--muted);font-size:.74rem;font-weight:700;text-transform:uppercase}.artifact pre{margin:0;padding:clamp(1.1rem,3vw,2rem);overflow-x:auto;color:var(--charcoal);font:.9rem/1.65 var(--mono)}.home-overview{display:grid;grid-template-columns:minmax(18rem,.7fr) minmax(0,1fr);gap:clamp(2rem,5vw,4rem);align-items:start;padding:clamp(1.5rem,4vw,3rem) 0 clamp(1.75rem,5vw,4rem);border-bottom:1px solid var(--line)}.home-overview-copy{max-width:760px}.home-overview h1{max-width:12ch;font-size:clamp(2.35rem,4.5vw,3.8rem)}.home-primary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;border:1px solid var(--line);background:var(--line)}.home-primary a{display:grid;grid-template-rows:auto auto 1fr;gap:.75rem;min-height:12rem;padding:1rem;background:var(--paper);text-decoration:none}.home-primary a:hover,.home-practical-list a:hover{background:var(--paper-deep)}.home-primary a:hover strong,.home-practical-list a:hover strong{color:var(--rust)}.home-primary span{color:var(--teal);font-size:.72rem;font-weight:760;text-transform:uppercase}.home-primary strong{color:var(--charcoal);font-family:Georgia,Times New Roman,serif;font-size:clamp(1.65rem,2.4vw,2.15rem);font-weight:520;line-height:1.05}.home-primary small{align-self:end;color:var(--muted);font-size:.95rem;line-height:1.55}.home-answer{display:grid;grid-template-columns:minmax(12rem,.34fr) minmax(0,1fr);gap:clamp(1.5rem,4vw,3rem);padding:clamp(1.75rem,4vw,3rem) 0;border-bottom:1px solid var(--line)}.home-answer h2{max-width:11ch;margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(1.65rem,3vw,2.4rem);font-weight:520;line-height:1.1}.home-answer-body{display:grid;gap:.9rem;max-width:760px;border-top:1px solid var(--line);padding-top:1rem}.home-answer-body p{margin:0;color:var(--charcoal);font-size:1rem;line-height:1.7}.home-answer-body code{padding:.1em .25em;background:#2f7f6f1c;font-size:.9em}.home-answer-body a{text-decoration-thickness:1px;text-underline-offset:.25em}.home-answer-body a:hover{color:var(--rust)}.home-practical{display:grid;grid-template-columns:minmax(12rem,.34fr) minmax(0,1fr);gap:clamp(1.5rem,4vw,3rem);padding:clamp(1.75rem,4vw,3rem) 0;border-bottom:1px solid var(--line)}.home-practical h2{max-width:14ch;margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(1.65rem,3vw,2.4rem);font-weight:520;line-height:1.1}.home-practical-list{display:grid;border-top:1px solid var(--line)}.home-practical-list a{display:grid;grid-template-columns:minmax(8rem,.24fr) minmax(0,1fr);gap:1rem;padding:1rem 0;border-bottom:1px solid var(--line);text-decoration:none}.home-practical-list strong{color:var(--charcoal)}.home-practical-list small{color:var(--muted);font-size:.95rem;line-height:1.55}.tool-shell{display:grid;grid-template-columns:minmax(17rem,.34fr) minmax(0,1fr);gap:clamp(1.5rem,4vw,3rem);align-items:start}.tool-section+.tool-section{margin-top:clamp(3rem,7vw,5.5rem);padding-top:clamp(2rem,5vw,4rem);border-top:1px solid var(--line)}.tool-sidebar{display:grid;gap:1rem;border-top:1px solid var(--line)}.tool-search{display:grid;gap:.55rem;padding-top:1rem}.tool-search label{color:var(--teal);font-size:.72rem;font-weight:760;text-transform:uppercase}.tool-search input{width:100%;min-height:2.7rem;padding:.65rem .8rem;border:1px solid var(--line);border-radius:0;background:var(--paper);color:var(--ink);font:inherit}.tool-search input:focus{border-color:var(--teal);outline:2px solid rgba(47,127,111,.18);outline-offset:0}.feature-button-list{display:grid;border-top:1px solid var(--line)}.feature-button-list button{display:grid;gap:.3rem;padding:.85rem 0;border:0;border-bottom:1px solid var(--line);background:transparent;color:inherit;font:inherit;text-align:left;cursor:pointer}.feature-button-list button:hover span,.feature-button-list button[aria-pressed=true] span{color:var(--rust)}.feature-button-list span{color:var(--charcoal);font-weight:760;line-height:1.3}.feature-button-list small,.tool-empty{color:var(--muted);font-size:.84rem;line-height:1.45}.tool-results{min-width:0}.feature-result{border-top:1px solid var(--line)}.feature-result-header{display:grid;grid-template-columns:minmax(0,1fr) minmax(14rem,.42fr);gap:clamp(1.25rem,4vw,3rem);padding:1.25rem 0;border-bottom:1px solid var(--line)}.feature-result-header h2{max-width:18ch;margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(1.85rem,3vw,2.8rem);font-weight:520;line-height:1.08}.feature-result-header p{max-width:58ch;margin:.8rem 0 0;color:var(--muted);line-height:1.65}.feature-counts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;align-self:start;margin:0;border:1px solid var(--line);background:var(--line)}.feature-counts div{display:grid;gap:.35rem;padding:.65rem;background:var(--paper)}.feature-counts dt,.feature-counts dd{margin:0}.feature-counts dd{color:var(--charcoal);font-family:var(--mono);font-size:1rem}.support-groups{display:grid}.support-group{display:grid;grid-template-columns:minmax(10rem,.24fr) minmax(0,1fr);gap:clamp(1rem,3vw,2rem);padding:1.1rem 0;border-bottom:1px solid var(--line)}.support-group-heading h3{margin:0}.support-group-heading p{margin:.55rem 0 0;color:var(--muted);font-size:.88rem;line-height:1.5}.support-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;border:1px solid var(--line);background:var(--line)}.support-list a{display:grid;gap:.4rem;min-height:7.2rem;padding:.8rem;background:var(--paper);text-decoration:none}.support-list a:hover{background:var(--paper-deep)}.support-list strong{color:var(--charcoal)}.support-list small{align-self:end;color:var(--muted);font-size:.84rem;line-height:1.45}.compare-panel{display:grid;gap:1.2rem;border-top:1px solid var(--line)}.compare-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-top:0}.compare-controls label{display:grid;gap:.55rem;padding:.85rem;background:var(--paper)}.compare-controls span{color:var(--teal);font-size:.72rem;font-weight:760;text-transform:uppercase}.compare-controls select{width:100%;min-height:2.65rem;padding:.55rem .7rem;border:1px solid var(--line);border-radius:0;background:var(--paper);color:var(--ink);font:inherit}.compare-controls select:focus{border-color:var(--teal);outline:2px solid rgba(47,127,111,.18);outline-offset:0}.compare-summary{display:flex;flex-wrap:wrap;gap:.55rem 1rem;align-items:baseline;color:var(--muted);font-size:.95rem;line-height:1.55}.compare-summary strong{color:var(--charcoal)}.comparison-list{display:grid;border-top:1px solid var(--line)}.comparison-row{display:grid;grid-template-columns:minmax(13rem,.32fr) minmax(0,1fr);gap:clamp(1rem,3vw,2rem);padding:1.1rem 0;border-bottom:1px solid var(--line)}.comparison-heading{display:grid;align-content:start;gap:.55rem}.comparison-heading h3{margin:0;color:var(--charcoal);font-size:1rem}.comparison-heading p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.5}.comparison-verdict{justify-self:start;padding:.16rem .38rem;border:1px solid var(--line);color:var(--muted);font-size:.68rem;font-weight:780;text-transform:uppercase}.comparison-verdict.is-different{border-color:#7f4b3d73;color:var(--rust)}.comparison-cells{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;border:1px solid var(--line);background:var(--line)}.comparison-cell{display:grid;align-content:start;gap:.45rem;min-height:8rem;padding:.85rem;background:var(--paper)}.comparison-cell a{color:var(--charcoal);font-weight:760;text-decoration:none}.comparison-cell a:hover{color:var(--rust)}.comparison-cell small{color:var(--muted);font-size:.84rem;line-height:1.45}.editor-shell{display:grid;border-top:1px solid var(--line)}.editor-toolbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--line)}.editor-examples,.editor-actions,.editor-tabs,.editor-options,.editor-segmented{display:flex;flex-wrap:wrap;gap:.45rem}.editor-examples button,.editor-actions button,.editor-tabs button,.editor-segmented button{min-height:2.15rem;padding:.42rem .62rem;border:1px solid var(--line);border-radius:0;background:transparent;color:var(--muted);font:inherit;font-size:.8rem;font-weight:720;cursor:pointer}.editor-examples button:hover,.editor-actions button:hover,.editor-tabs button:hover,.editor-tabs button[aria-pressed=true],.editor-segmented button:hover,.editor-segmented button[aria-pressed=true]{border-color:var(--ink);color:var(--ink)}.editor-options{align-items:center;justify-content:space-between;padding:.75rem 0;border-bottom:1px solid var(--line)}.editor-option-group,.editor-checkbox{display:inline-flex;align-items:center;gap:.55rem}.editor-option-group>span,.editor-checkbox span{color:var(--muted);font-size:.72rem;font-weight:760;text-transform:uppercase}.editor-checkbox{min-height:2.15rem;cursor:pointer}.editor-checkbox input{width:1rem;height:1rem;margin:0;accent-color:var(--teal)}.editor-tabs{display:none;padding:.75rem 0;border-bottom:1px solid var(--line)}.editor-workspace{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);border-left:1px solid var(--line);background:var(--line)}[data-markdown-editor][data-preview-collapsed=true] [data-editor-pane=write]{grid-column:1 / -1}[data-markdown-editor][data-preview-collapsed=true] [data-editor-pane=preview],[data-markdown-editor][data-preview-collapsed=true] [data-editor-tab=preview]{display:none}.editor-pane{display:grid;grid-template-rows:auto 1fr;min-width:0;background:var(--paper)}.editor-html{grid-column:1 / -1}.editor-pane>span,.editor-pane-header{padding:.65rem .8rem;border-bottom:1px solid var(--line);background:var(--paper-deep);color:var(--teal);font-size:.72rem;font-weight:760;text-transform:uppercase}.editor-pane textarea{width:100%;min-height:34rem;padding:1rem;border:0;border-radius:0;resize:vertical;background:var(--paper);color:var(--charcoal);font:.92rem/1.65 var(--mono);overflow:auto;overflow-wrap:normal;scrollbar-color:rgba(94,102,92,.48) transparent;scrollbar-gutter:stable;tab-size:4;word-break:normal}.editor-pane textarea::-webkit-scrollbar{width:.8rem;height:.8rem}.editor-pane textarea::-webkit-scrollbar-track{background:transparent}.editor-pane textarea::-webkit-scrollbar-thumb{border:3px solid var(--paper);border-radius:8px;background:#5e665c7a}.editor-pane textarea::-webkit-scrollbar-corner{background:var(--paper)}[data-markdown-input]{white-space:pre}[data-markdown-editor][data-line-wrap=true] [data-markdown-input]{white-space:pre-wrap;overflow-wrap:anywhere}.editor-html textarea{min-height:12rem}.editor-pane textarea:focus{outline:2px solid rgba(47,127,111,.2);outline-offset:-2px}.markdown-preview.prose{max-width:none;min-height:34rem;margin:0;padding:1rem;overflow:auto;background:var(--paper)}.markdown-preview.prose h1{max-width:none;margin:0 0 1rem;font-size:clamp(1.7rem,3vw,2.3rem);line-height:1.12}.markdown-preview.prose h2{margin:1.8rem 0 .7rem;font-size:1.55rem}.markdown-preview.prose h3{margin:1.4rem 0 .55rem}.markdown-preview.prose p,.markdown-preview.prose li{color:var(--charcoal);font-size:1rem;line-height:1.7}.markdown-preview.prose p:first-child{margin-top:0}.markdown-preview.prose pre{padding:.9rem;overflow-x:auto;background:var(--paper-deep);font:.9rem/1.6 var(--mono)}.markdown-preview.prose code{padding:.1em .25em;background:#2f7f6f1c;font-size:.9em}.markdown-preview.prose pre code{padding:0;background:transparent}.markdown-preview.prose img{display:block;max-width:100%;height:auto;margin:1rem 0}.markdown-preview.prose p:has(>img:only-child),.markdown-preview.prose p:has(>a:only-child>img:only-child){margin:1rem 0}.markdown-preview.prose table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.95rem}.markdown-preview.prose th,.markdown-preview.prose td{padding:.55rem;border:1px solid var(--line);text-align:left}.markdown-preview.prose blockquote{margin:1.2rem 0;padding:.8rem 1rem;border-left:3px solid var(--teal);background:var(--paper-deep)}.editor-foot{display:flex;justify-content:space-between;gap:1rem;padding:.85rem 0 0;color:var(--muted);font-size:.9rem;line-height:1.6}.editor-foot p{margin:0}.editor-status{min-width:9rem;color:var(--rust);font-weight:720;text-align:right}.editor-print-output{display:none}body.is-printing-editor .editor-print-output{position:absolute;top:0;left:-10000px;display:block;width:6.87in;min-height:0;padding:0;overflow:visible;visibility:hidden;background:#fff}body.is-printing-editor .editor-print-output.markdown-preview.prose{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Markdown CJK Mono,sans-serif}body.is-printing-editor .editor-print-output.markdown-preview.prose h1,body.is-printing-editor .editor-print-output.markdown-preview.prose h2,body.is-printing-editor .editor-print-output.markdown-preview.prose h3{font-family:Georgia,Times New Roman,Markdown CJK Mono,serif}body.is-printing-editor .editor-print-output.markdown-preview.prose p{margin:0 0 .65rem}body.is-printing-editor .editor-print-output.markdown-preview.prose p:has(>img:only-child),body.is-printing-editor .editor-print-output.markdown-preview.prose p:has(>a:only-child>img:only-child){margin:.35rem 0 .65rem;line-height:0}body.is-printing-editor .editor-print-image-slices{display:block;margin-top:.35rem;margin-bottom:.65rem;break-inside:auto;page-break-inside:auto}body.is-printing-editor .editor-print-image-slices img{display:block;width:100%;max-width:none;max-height:none;height:auto;margin:0;object-fit:fill;break-inside:avoid;page-break-inside:avoid}.syntax-essentials,.syntax-extensions{margin-bottom:clamp(2rem,5vw,4rem)}.syntax-core-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;border:1px solid var(--line);background:var(--line)}.syntax-core-grid div{display:grid;grid-template-rows:auto auto auto 1fr;gap:.55rem;min-height:12rem;padding:.85rem;background:var(--paper)}.syntax-core-grid span{color:var(--teal);font-family:var(--mono);font-size:.78rem;font-weight:760}.syntax-core-grid strong{color:var(--charcoal);font-family:Georgia,Times New Roman,serif;font-size:1.35rem;font-weight:520;line-height:1.12}.syntax-core-grid code,.syntax-extension-list code{align-self:start;color:var(--charcoal);font:.92rem/1.45 var(--mono)}.syntax-core-grid small,.syntax-extension-list small{align-self:end;color:var(--muted);font-size:.88rem;line-height:1.45}.syntax-extension-list{display:grid;border-top:1px solid var(--line)}.syntax-extension-list div{display:grid;grid-template-columns:minmax(6rem,.18fr) minmax(9rem,.24fr) minmax(0,1fr);gap:1rem;padding:.95rem 0;border-bottom:1px solid var(--line)}.syntax-extension-list strong{color:var(--charcoal)}.example-tools{display:grid;gap:.9rem;margin-bottom:clamp(2rem,5vw,4rem);padding:clamp(1rem,2.5vw,1.5rem) 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.example-filter-panel{display:grid;gap:.8rem}.example-filter-panel label{color:var(--teal);font-size:.72rem;font-weight:760;text-transform:uppercase}.example-filter-panel input{width:100%;min-height:2.7rem;padding:.65rem .8rem;border:1px solid var(--line);border-radius:0;background:var(--paper);color:var(--ink);font:inherit}.example-filter-panel input:focus{border-color:var(--teal);outline:2px solid rgba(47,127,111,.18);outline-offset:0}.example-filter-row{display:flex;flex-wrap:wrap;gap:.45rem}.example-filter-row button,.example-actions a,.example-actions button{min-height:2rem;padding:.35rem .55rem;border:1px solid var(--line);border-radius:0;background:transparent;color:var(--muted);font:inherit;font-size:.78rem;font-weight:720;text-decoration:none;cursor:pointer}.example-filter-row button[aria-pressed=true],.example-actions a:hover,.example-actions button:hover{border-color:var(--ink);background:var(--ink);color:var(--paper)}.example-copy-status,.example-empty{min-height:1.4rem;margin:0;color:var(--rust);font-size:.9rem;font-weight:720;line-height:1.5}.example-empty{color:var(--muted)}.example-list{display:grid;border-top:1px solid var(--line)}.example-item{display:grid;gap:1rem;padding:1.4rem 0;border-bottom:1px solid var(--line)}.example-heading{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1rem;align-items:start}.example-heading h2{margin:0;color:var(--charcoal);font-family:Georgia,Times New Roman,serif;font-size:clamp(1.55rem,2.7vw,2.2rem);font-weight:520;line-height:1.1}.example-heading p:not(.eyebrow),.example-caveat{max-width:68ch;margin:.55rem 0 0;color:var(--muted);line-height:1.65}.example-actions{display:flex;flex-wrap:wrap;justify-content:end;gap:.45rem}.example-snippet{min-width:0;border:1px solid var(--line);background:var(--paper)}.example-snippet-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;padding:.65rem .8rem;border-bottom:1px solid var(--line);background:var(--paper-deep)}.example-snippet-head span{color:var(--teal);font-size:.72rem;font-weight:760;text-transform:uppercase}.example-snippet-head strong{color:var(--muted);font-family:var(--mono);font-size:.78rem;font-weight:600}.example-snippet pre{margin:0;padding:1rem;overflow-x:auto;color:var(--charcoal);font:.92rem/1.65 var(--mono);tab-size:4}.band,.split{margin-top:clamp(2rem,4vw,3.5rem)}.band{padding:clamp(1.75rem,4vw,3rem) 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section-heading{max-width:720px}.section-heading h2,.split h2,.page-intro h1{max-width:14ch;margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(1.9rem,3.5vw,3.2rem);font-weight:520;line-height:1.08}.section-heading p,.split p,.page-intro p,.principle-grid p,.timeline-body p,.source-item p,.essay-card p{color:var(--muted);line-height:1.65}.timeline-body p{margin:.6rem 0 0}.source-links{display:flex;flex-wrap:wrap;gap:.4rem .75rem;margin-top:.8rem;color:var(--muted);font-size:.95rem;line-height:1.6}.source-links strong{color:var(--charcoal)}.source-links a{text-decoration-thickness:1px;text-underline-offset:.25em}.external-source:after{content:" external";color:var(--muted);font-size:.72rem}.document-list{margin-top:.8rem;color:var(--muted);font-size:.95rem;line-height:1.6}.document-list summary{color:var(--charcoal);cursor:pointer;font-weight:720}.document-list[open] summary{margin-bottom:.35rem}.document-list strong,.source-item strong{color:var(--charcoal)}.document-list ul{margin:.35rem 0 0;padding-left:1.1rem}.document-list li+li{margin-top:.25rem}.timeline-ref-list{margin-top:.8rem;color:var(--muted);font-size:.9rem;line-height:1.55}.timeline-ref-list strong{color:var(--charcoal)}.timeline-ref-list ul{margin:.35rem 0 0;padding-left:1.1rem}.timeline-ref-list li+li{margin-top:.2rem}.principle-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;margin-top:2rem;background:var(--line);border:1px solid var(--line)}.principle-grid article,.essay-card,.source-item{background:var(--paper)}.principle-grid article{padding:1.4rem}.kicker,.status,.confidence{color:var(--rust);font-size:.78rem;font-weight:760;text-transform:uppercase}.principle-grid h3,.source-item h3,.essay-card h3,.essay-card h2,.timeline-body h2{margin:.45rem 0 .5rem;font-size:1.1rem}.split{display:grid;grid-template-columns:minmax(0,.7fr) minmax(0,1fr);gap:clamp(2rem,5vw,4rem);align-items:start}.text-link{display:inline-flex;margin-top:1rem;color:var(--ink);font-weight:760;text-decoration-thickness:1px;text-underline-offset:.3em}.secondary-link{margin-left:1rem}.timeline-mini,.timeline-list{margin:0;padding:0;list-style:none}.timeline-mini li,.timeline-list li{display:grid;grid-template-columns:8rem minmax(0,1fr);gap:1.2rem;padding:1.25rem 0;border-top:1px solid var(--line)}.timeline-mini time,.timeline-list time{color:var(--teal);font-family:var(--mono);font-size:.9rem}.editorial{display:flex;align-items:end;justify-content:space-between;gap:1.5rem}.page-intro{max-width:760px;margin-bottom:clamp(2rem,5vw,4rem)}.source-intro{margin-bottom:clamp(1.5rem,3vw,2.5rem)}.source-tools,.timeline-tools,.dialect-tools{margin-bottom:clamp(2rem,5vw,4rem);padding:clamp(1rem,2.5vw,1.5rem) 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.source-filter-panel,.timeline-filter-panel,.dialect-filter-panel{display:grid;align-content:start;gap:.8rem}.source-filter-panel label,.timeline-filter-panel label,.dialect-filter-panel label{color:var(--teal);font-size:.72rem;font-weight:760;text-transform:uppercase}.source-filter-panel input,.timeline-filter-panel input,.dialect-filter-panel input{width:100%;min-height:2.7rem;padding:.65rem .8rem;border:1px solid var(--line);border-radius:0;background:var(--paper);color:var(--ink);font:inherit}.source-filter-panel input:focus,.timeline-filter-panel input:focus,.dialect-filter-panel input:focus{border-color:var(--teal);outline:2px solid rgba(47,127,111,.18);outline-offset:0}.source-filter-row,.timeline-filter-row,.dialect-filter-row{display:flex;flex-wrap:wrap;gap:.45rem}.source-filter-row button,.timeline-filter-row button,.dialect-filter-row button{min-height:2rem;padding:.35rem .55rem;border:1px solid var(--line);border-radius:0;background:transparent;color:var(--muted);font:inherit;font-size:.78rem;font-weight:720;cursor:pointer}.source-filter-row button[aria-pressed=true],.timeline-filter-row button[aria-pressed=true],.dialect-filter-row button[aria-pressed=true]{border-color:var(--ink);background:var(--ink);color:var(--paper)}.source-empty,.timeline-empty,.dialect-empty{color:var(--muted);font-size:.95rem;line-height:1.65}.source-index,.dialect-index{margin-bottom:clamp(2rem,5vw,4rem)}.compact-heading{margin-bottom:1rem}.compact-heading h2{font-size:clamp(1.65rem,3vw,2.4rem)}.source-index-grid,.dialect-index-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;border:1px solid var(--line);background:var(--line)}.source-index-grid a,.dialect-index-grid a{display:grid;grid-template-rows:auto 1fr;gap:.45rem;min-height:8.5rem;padding:.85rem;background:var(--paper);text-decoration:none}.source-index-grid a:hover,.dialect-index-grid a:hover{background:var(--paper-deep)}.source-index-grid span,.dialect-index-grid span{color:var(--charcoal);font-weight:760;line-height:1.25}.source-index-grid small,.dialect-index-grid small{align-self:end;color:var(--muted);font-size:.76rem;line-height:1.4}.timeline-list li{grid-template-columns:10rem minmax(0,1fr);padding:1.7rem 0}.source-groups,.dialect-groups,.essay-list{display:grid;gap:2rem}.source-group h2,.dialect-group h2{margin:0 0 1rem;font-family:Georgia,Times New Roman,serif;font-size:2rem;font-weight:520}.source-group-header{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;margin-bottom:1rem}.source-group-header h2{margin:0}.source-group-header span{color:var(--muted);font-family:var(--mono);font-size:.82rem}.dialect-body p,.variant-fields,.feature-chips{color:var(--muted);line-height:1.65}.dialect-group{display:grid;gap:1.3rem}.dialect-list{border-top:1px solid var(--line)}.essay-list{grid-template-columns:repeat(2,minmax(0,1fr))}.archive-list{display:grid;gap:0;border-top:1px solid var(--line)}.archive-list.timeline-list li{border-top:0}.archive-list>li,.source-item,.dialect-item{display:grid;grid-template-columns:11rem minmax(0,1fr);gap:clamp(1rem,4vw,3rem);padding:1.35rem 0;border-bottom:1px solid var(--line);background:transparent}.archive-list>li:target,.source-item:target,.dialect-item:target{outline:2px solid rgba(47,127,111,.32);outline-offset:.35rem}.archive-meta{display:grid;align-content:start;gap:.25rem;color:var(--teal);font-family:var(--mono);font-size:.82rem}.archive-meta span,.archive-meta time{line-height:1.45}.source-body{min-width:0}.source-title-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.8rem;align-items:start}.source-open{display:inline-flex;align-items:center;justify-content:center;min-height:1.85rem;padding:.22rem .5rem;border:1px solid var(--line);color:var(--muted);font-size:.74rem;font-weight:760;text-decoration:none;text-transform:uppercase}.source-open:hover{border-color:var(--rust)}.essay-card{padding:1.4rem;border:1px solid var(--line);background:var(--paper)}.dialect-body h3{margin:.45rem 0 .5rem;font-size:1.2rem}.variant-fields{display:grid;gap:.85rem;margin:.8rem 0 0}.variant-fields div{display:grid;grid-template-columns:8rem minmax(0,1fr);gap:1rem}.variant-fields dt{color:var(--charcoal);font-size:.78rem;font-weight:760;text-transform:uppercase}.variant-fields dd{margin:0;min-width:0}.feature-chips{display:flex;flex-wrap:wrap;gap:.45rem;margin:0;padding:0;list-style:none}.feature-chips li{padding:.25rem .45rem;border:1px solid var(--line);background:#fffef88c}.matrix-section{margin-top:clamp(3rem,6vw,5rem)}.matrix-scroll{margin-top:1.4rem;overflow-x:auto;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.feature-matrix{width:100%;min-width:1100px;border-collapse:collapse;table-layout:fixed}.feature-matrix th,.feature-matrix td{padding:.75rem .55rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.feature-matrix thead th{color:var(--teal);font-family:var(--mono);font-size:.72rem;font-weight:760}.feature-matrix thead a{text-decoration-thickness:1px;text-underline-offset:.25em}.feature-matrix tbody th{width:12rem;color:var(--charcoal);font-size:.95rem}.feature-matrix small{display:block;margin-top:.35rem;color:var(--muted);font-size:.78rem;font-weight:500;line-height:1.45}.matrix-status{display:inline-flex;padding:.12rem .35rem;border:1px solid var(--line);color:var(--charcoal);font-size:.68rem;font-weight:780;text-transform:uppercase}.status-native{border-color:#2f7f6f73;color:var(--teal)}.status-extension{border-color:#7f4b3d73;color:var(--rust)}.status-partial,.status-depends{border-color:#5e665c73;color:var(--muted)}.status-no{color:#5e665cbf}.matrix-key{max-width:820px;margin:.9rem 0 0;color:var(--muted);font-size:.95rem;line-height:1.65}.source-item h3 a,.essay-card h3 a,.essay-card h2 a{text-decoration:none}.essay-list.compact{margin-top:1.5rem}.prose{max-width:760px;margin:0 auto}.prose h1{max-width:12ch;margin-bottom:1.5rem;font-size:clamp(2.6rem,6vw,4.8rem)}.prose h2{margin:2.8rem 0 .8rem;font-family:Georgia,Times New Roman,serif;font-size:clamp(1.7rem,3vw,2.5rem);font-weight:520}.prose p,.prose li{color:var(--charcoal);font-size:1.05rem;line-height:1.8}.prose blockquote{margin:2rem 0;padding:1rem 1.25rem;border-left:4px solid var(--teal);background:var(--paper)}.prose code{padding:.1em .28em;background:#2f7f6f1c;font-size:.92em}.site-footer{display:flex;justify-content:space-between;gap:1rem;padding:2rem clamp(1rem,4vw,3rem);border-top:1px solid var(--line);color:var(--muted)}.site-footer p{margin:0}[hidden]{display:none!important}@media(max-width:860px){.site-header,.site-footer,.editorial,.editor-toolbar,.editor-options,.editor-foot{align-items:flex-start;flex-direction:column}.nav,.editor-examples,.editor-actions,.editor-option-group,.editor-segmented{flex-wrap:wrap}.editor-tabs{display:flex}.editor-workspace{grid-template-columns:1fr}.editor-html{grid-column:auto}[data-markdown-editor][data-active-view=write] [data-editor-pane]:not([data-editor-pane=write]),[data-markdown-editor][data-active-view=preview] [data-editor-pane]:not([data-editor-pane=preview]),[data-markdown-editor][data-active-view=html] [data-editor-pane]:not([data-editor-pane=html]){display:none}.editor-pane textarea,.markdown-preview.prose{min-height:28rem}.editor-status{min-width:0;text-align:left}.hero,.home-overview,.home-primary,.home-answer,.home-practical,.tool-shell,.split,.principle-grid,.source-tools,.timeline-tools,.dialect-tools,.source-list,.dialect-list,.essay-list,.example-heading,.syntax-core-grid,.syntax-extension-list div,.home-practical-list a,.archive-list>li,.source-item,.dialect-item{grid-template-columns:1fr}.hero{min-height:auto}.feature-result-header,.support-group,.comparison-row{grid-template-columns:1fr}.source-index-grid,.dialect-index-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.variant-fields div{grid-template-columns:1fr;gap:.25rem}h1{font-size:clamp(2.7rem,15vw,5rem)}}@media(max-width:560px){.timeline-mini li,.timeline-list li{grid-template-columns:1fr;gap:.35rem}.button{width:100%;justify-content:center}.source-index-grid,.dialect-index-grid,.support-list,.compare-controls,.comparison-cells,.source-title-row{grid-template-columns:1fr}}@media print{@page{size:A4;margin:.7in}:root{--bg: #ffffff;--paper: #ffffff;--paper-deep: #ffffff;--ink: #111111;--charcoal: #111111;--muted: #444444;--line: #cccccc}body{background:#fff}.site-header,.site-footer,.page-intro,.editor-toolbar,.editor-options,.editor-tabs,.editor-foot,.editor-workspace{display:none!important}.site-main,.site-main.wide{width:100%;padding:0}.editor-shell,.editor-print-output{display:block!important;border:0;background:#fff}.editor-print-output.markdown-preview.prose{position:static;width:auto;min-height:0;padding:0;overflow:visible;visibility:visible;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Markdown CJK Mono,sans-serif}.editor-print-output.markdown-preview.prose h1,.editor-print-output.markdown-preview.prose h2,.editor-print-output.markdown-preview.prose h3{font-family:Georgia,Times New Roman,Markdown CJK Mono,serif}.editor-print-output.markdown-preview.prose a{color:#111;text-decoration:underline}.editor-print-output.markdown-preview.prose p{margin:0 0 .65rem}.editor-print-output.markdown-preview.prose p:has(>img:only-child){margin:.35rem 0 .65rem;line-height:0}.editor-print-output.markdown-preview.prose p:has(>a:only-child>img:only-child){margin:.35rem 0 .65rem;line-height:0}.editor-print-output.markdown-preview.prose img{max-width:100%;max-height:6.8in;width:auto;height:auto;margin:0;object-fit:contain}.editor-print-output.markdown-preview.prose[data-print-split-images=true]{overflow:visible}.editor-print-image-slices{display:block;margin-top:.35rem;margin-bottom:.65rem;break-inside:auto;page-break-inside:auto}.editor-print-image-slices img{display:block;width:100%;max-width:none;max-height:none;height:auto;margin:0;object-fit:fill;break-inside:avoid;page-break-inside:avoid}.editor-print-output.markdown-preview.prose pre,.editor-print-output.markdown-preview.prose blockquote{break-inside:avoid}}