:root{color-scheme:light;--ink:#18252b;--muted:#617178;--paper:#f4f1e8;--panel:#fffdf7;--glass:#dceff1;--cyan:#137985;--orange:#c95f35;--yellow:#f2cf65;--line:#aebcc0;--shadow:rgba(24,37,43,.12);font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--paper);color:var(--ink)}
*{box-sizing:border-box}
body{margin:0;min-width:300px;min-height:100vh;background:linear-gradient(90deg,rgba(19,121,133,.035) 1px,transparent 1px),linear-gradient(rgba(19,121,133,.035) 1px,transparent 1px),var(--paper);background-size:24px 24px}
a,button{font:inherit}
a{color:#075e69;text-underline-offset:.2em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.skip-link{position:fixed;left:1rem;top:-5rem;z-index:20;background:var(--ink);color:#fff;padding:.75rem 1rem}
.skip-link:focus{top:1rem}
.site-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:74px;padding:.65rem clamp(1rem,4vw,3.5rem);border-bottom:1px solid var(--line);background:rgba(255,253,247,.94);backdrop-filter:blur(14px)}
.brand{display:flex;align-items:center;gap:.75rem;color:var(--ink);font-weight:850;text-decoration:none;line-height:1.1}
.brand-mark{width:44px;height:44px;display:grid;place-items:center;border:2px solid var(--ink);background:linear-gradient(135deg,var(--glass) 0 49%,var(--yellow) 50%);box-shadow:3px 3px 0 var(--ink);font:900 .72rem ui-monospace,SFMono-Regular,Menlo,monospace}
.brand small{display:block;margin-top:.24rem;color:var(--muted);font-size:.63rem;font-weight:650;letter-spacing:.08em;text-transform:uppercase}
.site-header nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:.35rem}
.site-header nav a{min-height:44px;display:inline-flex;align-items:center;padding:0 .8rem;border:1px solid transparent;color:var(--ink);font-size:.84rem;text-decoration:none}
.site-header nav a:hover,.site-header nav a[aria-current="page"]{border-color:var(--ink);background:var(--glass)}
main{width:min(1120px,100%);margin:auto;padding:clamp(2.5rem,7vw,6rem) clamp(1rem,5vw,3.5rem)}
.eyebrow{margin:0;color:var(--cyan);font:800 .72rem/1.3 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.16em;text-transform:uppercase}
h1{max-width:18ch;margin:.8rem 0 1.2rem;font:780 clamp(2.6rem,7vw,5.9rem)/.94 ui-serif,Georgia,serif;letter-spacing:-.045em}
h1 em{color:var(--orange);font-style:normal}
.lede{max-width:70ch;color:#3e5057;font-size:clamp(1.05rem,2vw,1.23rem)}
.notice{max-width:78ch;margin:2rem 0;padding:1rem 1.15rem;border-left:5px solid var(--orange);background:#fff4e9}
.content-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,.38fr);gap:clamp(1.5rem,5vw,4rem);align-items:start;margin-top:3rem}
.article-stack{display:grid;grid-template-columns:minmax(0,1fr);gap:1rem;min-width:0}
.article-stack section,.qa details,.side-card{border:1px solid var(--line);background:var(--panel);box-shadow:5px 5px 0 var(--shadow)}
.article-stack section{padding:clamp(1.2rem,3vw,2rem)}
h2{margin:.1rem 0 .75rem;font:760 clamp(1.45rem,3vw,2.15rem)/1.1 ui-serif,Georgia,serif}
h3{margin:1.5rem 0 .45rem;font-size:1rem}
p,li,dd{max-width:75ch}
li+li{margin-top:.55rem}
code,kbd{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
code{overflow-wrap:anywhere}
h1,h2,h3,h4,h5,h6,p,li,dt,dd,figcaption,th,td{overflow-wrap:break-word}
kbd{display:inline-block;min-width:1.8rem;padding:.08rem .35rem;border:1px solid var(--line);border-bottom:3px solid var(--line);border-radius:.25rem;background:#fff;text-align:center}
.side-card{position:sticky;top:94px;padding:1.2rem}
.side-card h2{font-size:1.15rem}
.side-card ul{list-style:none;margin:0;padding:0}
.side-card a{min-height:44px;display:flex;align-items:center;border-top:1px solid #d6dfe1;text-decoration:none}
.side-card a[aria-current="page"]{color:var(--orange);font-weight:800}
.qa{display:grid;gap:.7rem;margin-top:2rem}
.qa details{padding:1rem 1.15rem}
.qa summary{min-height:44px;display:flex;align-items:center;cursor:pointer;color:var(--cyan);font-weight:800}
.qa p{margin-bottom:.2rem}
.table-wrap{overflow-x:auto;border:1px solid var(--line)}
table{width:100%;min-width:620px;border-collapse:collapse;background:#fff}
th,td{padding:.75rem;text-align:left;vertical-align:top;border-bottom:1px solid #d5dfe1}
th{background:var(--glass);font-size:.76rem;letter-spacing:.06em;text-transform:uppercase}
dt{font-weight:800}
dd{margin:0 0 1rem;color:#40535a}
.callout-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem}
.callout-grid article{padding:1rem;border:1px solid var(--line);background:#fff}
.callout-grid article::before{content:"";display:block;width:34px;height:4px;margin-bottom:.8rem;background:var(--yellow)}
.page-actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:2rem}
.page-actions a{min-height:48px;display:inline-flex;align-items:center;padding:0 1rem;border:2px solid var(--ink);color:var(--ink);font-weight:800;text-decoration:none;background:#fff}
.page-actions a:first-child{background:var(--cyan);color:#fff;border-color:var(--cyan)}
.site-footer{display:flex;justify-content:space-between;gap:1.5rem;padding:1.3rem clamp(1rem,4vw,3.5rem);border-top:1px solid var(--line);background:var(--panel);color:var(--muted);font-size:.78rem}
.site-footer nav{display:flex;flex-wrap:wrap;gap:1rem}
.site-footer a{min-height:44px;display:inline-flex;align-items:center}
@media(max-width:780px){.site-header{position:static;align-items:flex-start}.site-header nav{display:none}.content-grid{grid-template-columns:minmax(0,1fr)}.side-card{position:static;order:-1}.side-card ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 .8rem}.callout-grid{grid-template-columns:minmax(0,1fr)}.site-footer{flex-direction:column}}
@media(max-width:460px){h1{font-size:2.65rem}.brand>span:last-child{font-size:.9rem}.side-card ul{grid-template-columns:minmax(0,1fr)}.article-stack section{padding:1rem}.site-footer{padding-inline:1rem}}
@media(prefers-reduced-motion:no-preference){a,.qa details{transition:background-color .15s ease,border-color .15s ease}}
@media print{body{background:#fff}.site-header,.site-footer,.side-card,.page-actions{display:none!important}main{width:auto;padding:0}.content-grid{display:block;margin-top:2rem}.article-stack section,.qa details{box-shadow:none;break-inside:avoid}a{color:inherit}}