:root{--ink:#163540;--ink-deep:#102a34;--muted:#58717b;--line:#d4e1e4;--wash:#eaf3f4;--paper:#f9fcfc;--white:#fff;--accent:#b34f2d;--accent-soft:#f6e9e2;--code:#14313c}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Segoe UI,Arial,sans-serif;line-height:1.65}
a{color:inherit}
a:focus-visible{outline:3px solid #cb663f;outline-offset:4px;border-radius:2px}
.shell{width:min(1180px,calc(100% - 48px));margin-inline:auto}
.skip-link{position:absolute;left:16px;top:-80px;background:var(--white);padding:9px 16px;z-index:20}.skip-link:focus{top:12px}
.site-header{background:var(--paper);border-bottom:1px solid var(--line)}
.header-inner{min-height:84px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink-deep);font-family:Arial Narrow,Segoe UI,Arial,sans-serif;font-size:23px;font-weight:800;line-height:1.05;letter-spacing:-.04em}
.brand-mark{display:flex;align-items:center;justify-content:center;width:42px;height:42px;color:var(--white);background:var(--ink-deep);font-size:27px;line-height:1}.brand-dot{color:#f49a73;margin-left:1px}
.brand small{display:block;margin-top:5px;font:600 10px/1.2 Consolas,monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.site-header nav{display:flex;align-items:center;gap:34px}.site-header nav a{text-decoration:none;font-weight:650;font-size:14px}.site-header nav a:hover,.site-header nav a[aria-current=page]{color:var(--accent)}
.eyebrow,.card-kicker{font:700 12px/1.3 Consolas,monospace;letter-spacing:.095em;text-transform:uppercase;color:var(--accent)}
h1,h2,h3{font-family:Arial Narrow,Segoe UI,Arial,sans-serif;line-height:1.1;letter-spacing:-.045em;color:var(--ink-deep)}
.home-hero{padding:78px 0 90px;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:8%}
.home-hero h1{font-size:clamp(58px,7vw,98px);margin:26px 0 22px}.home-hero h1 em{font-style:normal;color:var(--accent)}
.hero-copy>p{font-size:20px;line-height:1.55;max-width:540px;color:#3f5b65;margin:0 0 34px}
.primary-link{display:inline-flex;align-items:center;gap:25px;background:var(--ink-deep);color:white;padding:15px 20px;text-decoration:none;font-weight:700;box-shadow:5px 5px 0 #aac6cb}.primary-link:hover{background:#214553}
.file-panel{background:var(--code);color:#dcebed;box-shadow:13px 13px 0 #c6dce0;min-height:390px;border:1px solid #49636c}
.panel-top{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid #45616b;color:#b4ced4;font:700 11px Consolas,monospace;letter-spacing:.1em}
.panel-status{color:#ffbd9e}.tree{padding:39px 24px 30px;font:14px/2.15 Consolas,monospace;white-space:nowrap;overflow-x:auto}.tree-child{padding-left:12px;color:#b6cbd1}.tree-grandchild{padding-left:62px;color:#f7fcfc}.tree .active-file{color:#ffbd9e}.tree .active-file span{color:#91c5ca}.file-panel>p{font:12px Consolas,monospace;color:#9fbac2;padding:0 24px;margin:0 0 20px}
.section-heading{margin-bottom:30px}.section-heading h2{font-size:clamp(36px,4.3vw,56px);max-width:660px;margin:12px 0}.section-heading p{color:var(--muted);font-size:18px;margin:0}
.pathway,.featured{padding:30px 0 95px}.steps{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.steps a{padding:29px 28px 31px 0;text-decoration:none;display:block}.steps a+a{border-left:1px solid var(--line);padding-left:28px}.steps b{font:700 14px Consolas,monospace;color:var(--accent)}.steps h3{font-size:30px;margin:16px 0 8px}.steps p{color:var(--muted);max-width:260px;margin:0 0 24px}.steps span{font-weight:700;color:var(--ink-deep)}.steps a:hover span{color:var(--accent)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.guide-card{display:flex;flex-direction:column;padding:25px 25px 22px;border:1px solid var(--line);background:var(--white);text-decoration:none;min-height:284px;transition:transform .15s ease,border-color .15s ease}.guide-card:hover{transform:translateY(-3px);border-color:#8fb1b9}.guide-card h3{font-size:26px;margin:17px 0 11px}.guide-card p{font-size:15px;color:var(--muted);line-height:1.55;margin:0 0 22px}.card-action{margin-top:auto;font-size:14px;font-weight:700;color:var(--accent);display:flex;justify-content:space-between}.all-guides{text-align:right;margin:25px 0 0;font-weight:700}.all-guides a{text-decoration:none;border-bottom:2px solid var(--accent)}
.page-hero{padding:72px 0 56px;border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(44px,5.3vw,70px);max-width:900px;margin:20px 0}.page-hero p{max-width:760px;font-size:20px;color:var(--muted)}.topic-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:27px}.topic-links a{padding:8px 13px;background:var(--wash);color:var(--ink-deep);text-decoration:none;font-weight:700;font-size:13px}.topic-links a:hover{background:#d9e9eb}
.guide-group{padding:70px 0 20px}.guide-group+.guide-group{border-top:1px solid var(--line)}.guide-group:last-child{padding-bottom:100px}
.breadcrumbs{display:flex;gap:10px;align-items:center;padding:26px 0;font:12px Consolas,monospace;color:var(--muted)}.breadcrumbs a{text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}
.article-grid{display:grid;grid-template-columns:minmax(0,760px) minmax(180px,1fr);gap:90px;padding-bottom:100px}.article-intro{border-bottom:1px solid var(--line);padding:28px 0 34px}.article-intro h1{font-size:clamp(42px,5vw,64px);margin:15px 0}.article-intro .deck{font-size:20px;color:var(--muted);margin:0;line-height:1.5}.toc-sticky{position:sticky;top:28px;display:flex;flex-direction:column;gap:11px;border-left:2px solid var(--line);padding:6px 0 6px 20px;margin-top:37px}.toc strong{font:700 12px Consolas,monospace;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:5px}.toc a{text-decoration:none;font-size:13px;line-height:1.4;color:var(--ink)}.toc a:hover{color:var(--accent)}.toc .toc-all{font-weight:700;color:var(--accent);margin-top:12px}
.prose{font-size:17px;line-height:1.78;color:#27444e}.prose h1{display:none}.prose h2{font-size:32px;margin:47px 0 15px;scroll-margin-top:30px}.prose h3{font-size:23px;margin:33px 0 12px}.prose p{margin:0 0 19px}.prose ul,.prose ol{padding-left:25px;margin:0 0 25px}.prose li{padding-left:3px;margin:0 0 9px}.prose a{color:#986040;text-decoration-thickness:1px;text-underline-offset:3px}.prose strong{color:var(--ink-deep)}.prose blockquote{border-left:3px solid var(--accent);margin:26px 0;padding:15px 22px;background:var(--accent-soft)}.prose blockquote p:last-child{margin-bottom:0}.prose code{font:14px Consolas,monospace;background:#e8f0f1;padding:2px 4px}.code-block{padding:22px;background:var(--code);color:#eaf3f4;overflow:auto;line-height:1.6;margin:24px 0}.code-block code{background:transparent;padding:0;color:inherit}.table-wrap{overflow-x:auto;margin:28px 0}.prose table{border-collapse:collapse;min-width:540px;width:100%;font-size:15px;line-height:1.45}.prose th,.prose td{text-align:left;padding:11px 13px;border-bottom:1px solid var(--line);vertical-align:top}.prose th{background:var(--wash);color:var(--ink-deep)}.check-box{display:inline-block;width:13px;height:13px;border:1.5px solid #75949b;margin-right:8px;vertical-align:baseline}.article-end{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:55px;padding-top:25px;font-size:14px;font-weight:700}.article-end span{color:var(--muted)}.article-end a{color:var(--accent);text-decoration:none}
.simple-page{min-height:60vh;padding-bottom:110px}.simple-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:8%;padding-top:40px}.simple-grid h1{font-size:clamp(44px,5vw,68px);margin:13px 0}
.site-footer{background:var(--ink-deep);color:#eef8f8;padding:48px 0 20px}.footer-inner{display:flex;justify-content:space-between;gap:30px}.footer-inner strong{font:800 25px Arial Narrow,Segoe UI,sans-serif}.footer-inner p{font-size:14px;color:#adc7ce;margin:6px 0}.footer-inner nav{display:flex;align-items:start;flex-wrap:wrap;gap:17px 25px}.footer-inner a{text-decoration:none;font-size:13px}.footer-inner a:hover{text-decoration:underline}.footer-bottom{border-top:1px solid #375360;margin-top:40px;padding-top:20px;color:#9ebbc2;font:12px Consolas,monospace}
@media(max-width:900px){.home-hero{gap:35px;grid-template-columns:1fr 1fr}.file-panel{min-height:0}.tree{font-size:12px}.card-grid{grid-template-columns:repeat(2,1fr)}.article-grid{gap:35px;grid-template-columns:minmax(0,1fr) 180px}}
@media(max-width:700px){.shell{width:min(100% - 32px,1180px)}.header-inner{min-height:76px;align-items:start;padding:15px 0;flex-direction:column;gap:14px}.site-header nav{gap:26px}.home-hero{padding:55px 0 75px;grid-template-columns:1fr}.home-hero h1{font-size:clamp(54px,12vw,78px)}.file-panel{box-shadow:7px 7px 0 #c6dce0}.pathway,.featured{padding-bottom:65px}.steps{grid-template-columns:1fr}.steps a{padding:22px 0!important;border-left:0!important}.steps a+a{border-top:1px solid var(--line)}.card-grid{grid-template-columns:1fr}.guide-card{min-height:0}.page-hero{padding:50px 0 40px}.guide-group{padding:50px 0 20px}.article-grid{display:block;padding-bottom:65px}.toc{display:none}.article-intro{padding:12px 0 27px}.prose{font-size:16px}.prose h2{font-size:28px}.simple-grid{grid-template-columns:1fr;gap:15px;padding-top:15px}.simple-page{padding-bottom:70px}.footer-inner{display:block}.footer-inner nav{margin-top:28px}.tree-grandchild{padding-left:40px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.guide-card{transition:none}}