/* A static engineering notebook: native fonts, no animation or runtime dependencies. */
.architecture-guide{--ink:#182a3c;--muted:#4c6072;--accent:#265bb0;--line:#cfdae4;--paper:#f5f8fb;margin:0;background:var(--paper);color:var(--ink);font:16px/1.8 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.architecture-guide *{box-sizing:border-box}.architecture-guide h1,.architecture-guide h2,.architecture-guide h3,.architecture-guide p,.architecture-guide figure{margin:0}.architecture-guide a{color:inherit;text-underline-offset:4px}.architecture-guide a:hover{color:var(--accent)}.architecture-guide .wrap{width:min(1140px,calc(100% - 80px));margin-inline:auto}.eyebrow,.section-number{font:600 11px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.07em;text-transform:uppercase;color:var(--accent)}
.site-header{display:flex;justify-content:space-between;align-items:center;gap:25px;padding-block:22px;border-bottom:1px solid var(--line)}.architecture-guide .brand{font-size:33px;font-weight:750;letter-spacing:-2px;text-decoration:none;line-height:1.2}.brand span{color:var(--accent)}.site-header nav{display:flex;align-items:center;gap:25px}.site-header nav a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;font-size:13px}.site-header .nav-cta{border:1px solid #b8c9da;border-radius:6px;padding:8px 15px;gap:17px;background:white}.breadcrumbs{display:flex;gap:12px;flex-wrap:wrap;padding-block:22px 38px;font-size:12px;color:var(--muted)}.hero-grid{display:grid;grid-template-columns:1.13fr 1fr;gap:58px;align-items:center}.hero h1{font-size:clamp(39px,4.2vw,55px);font-weight:650;line-height:1.13;letter-spacing:-2.4px;margin-top:23px}.hero h1>span{color:var(--accent)}.standfirst{font-size:19px;line-height:1.65;margin-top:25px!important;color:var(--muted)}.byline{font-size:12px;line-height:1.9;margin-top:26px!important;color:var(--muted)}
.decision-card{background:#182d43;color:white;border:1px solid #2f4963;border-radius:10px;padding:26px 29px;box-shadow:0 14px 30px #243a5212}.card-top{display:flex;justify-content:space-between;gap:15px;align-items:center;font:11px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;color:#c9d9e7;letter-spacing:.05em}.status{padding:4px 10px;border:1px solid #adc9df;border-radius:20px;color:#d8e9fa}.decision-card h2{font-size:26px;font-weight:550;line-height:1.4;letter-spacing:-.5px;margin-block:22px}.decision-card dl{margin:0}.decision-card dl>div{display:grid;grid-template-columns:105px 1fr;gap:20px;padding-block:15px;border-top:1px solid #42586c;font-size:13px;line-height:1.7}.decision-card dt{color:#b2cef3;font-size:12px}.decision-card dd{margin:0;color:#ecf2f8}.card-caption{font-size:10px;color:#c0d0df;margin-top:14px!important}.quick-answer{border-left:3px solid var(--accent);padding:19px 24px;background:#e9f0f8;margin-block:38px 25px!important;font-size:14px;color:var(--muted)}.quick-answer strong{color:var(--ink)}.jump-links{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 20px;border-block:1px solid var(--line);padding-block:10px}.jump-links a{display:inline-flex;align-items:center;min-height:44px;font-size:12px;text-decoration:none}
.article-wrap{width:min(780px,calc(100% - 80px));margin:auto;padding-top:48px}.article-wrap section{margin-bottom:45px;scroll-margin-top:25px}.section-number{margin-bottom:14px!important}.article-wrap h2{font-size:33px;line-height:1.25;letter-spacing:-1px;font-weight:620;margin-bottom:22px}.article-wrap p{margin-top:18px;color:var(--muted)}.article-wrap p.eyebrow,.article-wrap p.section-number{color:var(--accent)}.article-wrap strong{color:var(--ink)}.article-wrap h3{font-size:22px;font-weight:600;line-height:1.45;letter-spacing:-.3px}.principle{padding:22px 25px;border:1px solid var(--line);border-radius:7px;background:white;margin-top:25px}.principle p{font-size:15px;margin-top:8px}.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:7px;background:white;margin-block:27px}.table-scroll table{width:100%;min-width:580px;border-collapse:collapse;font-size:13px;line-height:1.85;text-align:left}.table-scroll caption{padding:16px 19px;background:#e7eef7;text-align:left;font-size:13px;font-weight:650}.table-scroll th,.table-scroll td{padding:16px 18px;border-bottom:1px solid var(--line);vertical-align:top}.table-scroll thead{background:#f1f5f9}.table-scroll th{font-weight:600}.table-scroll tbody th{width:19%}.table-scroll td{color:var(--muted)}.table-scroll tr:last-child>*{border-bottom:0}.table-scroll a{color:var(--accent)}.decision-summary{padding:25px 29px;background:#e9f0f8;border-left:3px solid var(--accent);margin-block:28px}.decision-summary p:not(.eyebrow){font-size:19px;line-height:1.8;color:var(--ink);margin-top:12px}.decision-summary>span{display:block;font-size:11px;margin-top:19px;color:var(--muted)}
.spoken-note{padding:27px 30px;margin:27px 0;background:white;border:1px solid var(--line);border-radius:9px}.spoken-note p{font-size:20px;line-height:1.8;color:var(--ink);margin-top:15px}.spoken-note footer{font-size:11px;line-height:1.8;color:var(--muted);margin-top:20px}.capture-list{padding:0;list-style:none;counter-reset:prompts;margin-block:25px}.capture-list li{counter-increment:prompts;position:relative;padding:14px 0 14px 40px;border-top:1px solid var(--line);font-size:15px;color:var(--muted)}.capture-list li::before{content:counter(prompts,decimal-leading-zero);position:absolute;left:0;top:16px;font:12px/1.8 ui-monospace,Consolas,monospace;color:var(--accent)}
.template-panel{border:1px solid #bacadb;border-radius:8px;overflow:hidden;margin-block:26px;background:#fff}.template-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 19px;background:#e8eff7;flex-wrap:wrap}.template-bar>span{font:12px/1.6 ui-monospace,Consolas,monospace;overflow-wrap:anywhere}.template-bar a{min-height:44px;display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;padding:7px 12px;background:white;border:1px solid #a9bdd2;border-radius:4px;text-decoration:none}.template-panel pre{margin:0;padding:24px 27px;font:13px/1.9 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;color:#284768}.template-panel code{font:inherit}.worked-adr{border:1px solid var(--line);border-radius:6px;background:white;margin-block:24px}.worked-adr summary{padding:17px 20px;font-size:15px;font-weight:600;cursor:pointer;min-height:60px}.worked-adr>div{padding:4px 24px 24px}.worked-adr h3{font-size:20px;margin-bottom:20px}.worked-adr dl>div{display:grid;grid-template-columns:105px 1fr;gap:20px;border-top:1px solid var(--line);padding-block:14px;font-size:14px}.worked-adr dt{font-weight:600}.worked-adr dd{margin:0;color:var(--muted)}.worked-adr>div>p{font-size:12px}.recall-panel{border:1px solid var(--line);background:#e9f0f8;border-radius:7px;padding:25px 28px;margin-block:25px}.recall-panel h3{margin-top:12px}.recall-panel p{font-size:14px;margin-top:12px}.recall-panel p.eyebrow{font-size:11px}
.faq details{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-size:16px;font-weight:600;line-height:1.6;padding:19px 28px 19px 0;min-height:60px;position:relative;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"+";position:absolute;right:0;color:var(--accent);font-size:23px;top:14px}.faq details[open] summary::after{content:"−"}.faq details p{margin-top:0;padding:0 22px 22px 0;font-size:15px}.sources{border-top:1px solid var(--line);padding-top:26px}.sources h2{font-size:25px;margin-block:12px}.sources p,.sources li{font-size:13px;line-height:1.9}.sources ul{padding-left:20px}.sources li{padding-block:5px}.author-note{display:flex;gap:17px;align-items:flex-start;margin-block:30px 42px}.author-note>span{display:grid;place-items:center;width:42px;height:42px;background:#e4edf8;color:var(--accent);font-size:12px;flex:none;border-radius:50%}.author-note p{font-size:12px;margin-top:0}
.download-panel{display:grid;grid-template-columns:1.3fr 1fr;gap:65px;padding:40px;background:#182d43;color:white;border-radius:9px}.download-panel .eyebrow{color:#c3dcfc}.download-panel h2{font-size:37px;line-height:1.2;letter-spacing:-1.2px;font-weight:600;margin-block:18px}.download-panel>div>p:not(.eyebrow){font-size:14px;color:#dbe6f1}.store-actions{display:grid;gap:12px}.store-actions a{display:flex;align-items:center;justify-content:space-between;padding:13px 19px;min-height:48px;background:#e3edfc;color:var(--ink);text-decoration:none;font-size:14px;font-weight:600;border-radius:5px}.store-actions a:nth-child(2){background:transparent;color:white;border:1px solid #a7bfd7}.store-actions a:hover{background:white;color:var(--ink)}.download-panel .plan-note{font-size:12px!important;line-height:1.8;margin-top:18px}.download-panel .plan-note a:hover{color:white}.related-guides{display:grid;grid-template-columns:1fr 1fr;gap:35px;padding-block:28px 42px}.related-guides>a{display:block;text-decoration:none;padding-block:18px;border-top:1px solid var(--line)}.related-guides span{display:block;font-size:12px;color:var(--muted);margin-bottom:7px}.related-guides strong{font-size:16px}.site-footer{display:flex;align-items:center;flex-wrap:wrap;gap:25px;padding-block:25px;border-top:1px solid var(--line)}.site-footer>p{font-size:12px;color:var(--muted)}.site-footer nav{margin-left:auto;display:flex;gap:23px;flex-wrap:wrap}.site-footer nav a{font-size:12px;min-height:44px;text-decoration:none}.architecture-guide .guide-social{width:100%;display:flex;gap:25px;align-items:center;border-top:1px solid var(--line);padding-top:15px}.guide-social p{font-size:12px;color:var(--muted)}
@media(max-width:1000px){.hero-grid{gap:32px}.hero h1{font-size:44px;letter-spacing:-1.7px}.decision-card{padding:23px}.decision-card dl>div{grid-template-columns:85px 1fr;gap:14px}.download-panel{gap:35px}}
@media(max-width:760px){.architecture-guide .wrap,.article-wrap{width:calc(100% - 40px)}.site-header{padding-block:17px;gap:15px}.site-header nav{gap:17px}.site-header nav a{font-size:12px}.site-header nav>a:nth-child(2){display:none}.site-header .nav-cta{padding:8px 10px;gap:8px;font-size:11px}.architecture-guide .brand{font-size:30px}.breadcrumbs{font-size:11px;padding-block:20px 25px}.hero-grid{grid-template-columns:1fr;gap:30px}.hero h1{font-size:clamp(37px,8.5vw,51px);letter-spacing:-1.6px;margin-top:18px}.standfirst{font-size:17px;margin-top:20px!important}.byline{font-size:11px;margin-top:20px!important}.decision-card{padding:23px}.decision-card h2{font-size:25px}.decision-card dl>div{grid-template-columns:90px 1fr;gap:14px}.quick-answer{padding:20px;font-size:14px;margin-top:29px!important}.jump-links{display:grid;grid-template-columns:1fr 1fr;gap:0 15px}.jump-links a{font-size:11px}.article-wrap{padding-top:36px}.article-wrap h2{font-size:29px}.article-wrap section{margin-bottom:36px}.article-wrap p{font-size:16px;line-height:1.9}.article-wrap .section-number,.article-wrap .eyebrow{font-size:10px}.principle{padding:22px}.principle p{font-size:15px}.table-scroll td,.table-scroll th{padding:13px 15px}.decision-summary{padding:22px}.decision-summary p:not(.eyebrow){font-size:18px}.spoken-note{padding:22px}.spoken-note p{font-size:18px}.template-bar{padding:14px}.template-panel pre{padding:20px;font-size:12px}.worked-adr>div{padding:4px 20px 20px}.worked-adr dl>div{grid-template-columns:1fr;gap:7px}.worked-adr>div>p{font-size:12px}.recall-panel{padding:22px}.recall-panel p{font-size:14px}.faq summary{font-size:15px}.faq details p{font-size:15px}.sources p,.sources li{font-size:13px}.author-note p{font-size:12px}.download-panel{grid-template-columns:1fr;padding:27px;gap:27px}.download-panel h2{font-size:32px}.related-guides{grid-template-columns:1fr;gap:0;padding-bottom:25px}.site-footer{gap:16px}.site-footer>nav{width:100%;margin:0}.architecture-guide .guide-social{display:block}.guide-social nav{margin-top:8px;gap:24px}}
@media(max-width:370px){.architecture-guide .wrap,.article-wrap{width:calc(100% - 32px)}.site-header nav>a:nth-child(3){display:none}.hero h1{font-size:36px}.decision-card{padding:19px}.decision-card h2{font-size:23px}.download-panel h2{font-size:30px}}
@media print{.site-header nav,.jump-links,.download-panel,.related-guides,.site-footer,.skip-link{display:none!important}.architecture-guide{background:white;font-size:11pt}.architecture-guide .wrap,.article-wrap{width:100%}.hero-grid{display:block}.hero h1{font-size:28pt}.decision-card{color:#182a3c;background:#fff;box-shadow:none;margin-top:25px}.decision-card dt,.decision-card dd,.card-top,.card-caption,.status{color:#182a3c}.table-scroll{overflow:visible}.table-scroll table{min-width:0}.article-wrap h2{font-size:22pt}.template-panel,.spoken-note{break-inside:avoid}}
