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*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#fff;font:17px/1.65 var(--font)}[hidden]{display:none!important}a{color:var(--action);text-underline-offset:.2em}a:hover{color:#164285}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible,pre:focus-visible,.table-scroll:focus-visible{outline:3px solid #7b9fd7;outline-offset:4px}.skip-link{position:fixed;top:-100px;left:16px;background:var(--ink);color:#fff;padding:12px;z-index:20}.skip-link:focus{top:12px}.site-header{display:flex;align-items:center;gap:28px;min-height:82px;padding:16px 36px;border-bottom:1px solid var(--line)}.brand{color:var(--ink);font-weight:750;font-size:30px;letter-spacing:-.04em;text-decoration:none}.brand span{color:var(--action)}.site-header>span{color:var(--muted);font-size:15px}.site-header>a:last-child{margin-left:auto;font-size:15px}.app-layout{display:grid;grid-template-columns:260px minmax(0,1fr);max-width:1440px;margin:auto}.sidebar{padding:32px 20px;position:sticky;top:0;align-self:start}#step-nav{display:grid;gap:6px}#step-nav a{display:flex;align-items:baseline;gap:12px;padding:12px;color:var(--muted);font-size:15px;line-height:1.45;text-decoration:none;border-radius:6px}#step-nav a:hover{background:var(--surface)}#step-nav [aria-current]{color:var(--action);background:var(--selected);font-weight:650}#step-nav span{font-variant-numeric:tabular-nums}.materials-link{margin:28px 12px 0;padding-top:22px;border-top:1px solid var(--line);font-size:13px}.materials-link p{color:var(--muted);margin-top:12px}main{min-width:0;padding:40px clamp(24px,5vw,68px) 56px;border-left:1px solid var(--line);min-height:calc(100vh - 82px)}#step-content{max-width:76ch}h1,h2,h3{line-height:1.25;letter-spacing:-.025em;text-wrap:balance}h1{font-size:clamp(30px,3.4vw,42px);margin:0 0 24px}h2{font-size:25px;margin:38px 0 16px}h3{font-size:20px;margin:28px 0 12px}p,ul,ol{margin:0 0 18px}ul,ol{padding-left:25px}li{margin:7px 0}li>p{margin:0 0 8px}.intro{color:var(--muted);font-size:16px;margin-bottom:28px;padding-bottom:24px;border-bottom:1px solid var(--line)}.small{font-size:14px;color:var(--muted)}.prompt-block{padding:18px 20px;margin:22px 0 28px;border:1px solid var(--line);border-radius:6px;background:var(--surface);min-width:0}.copy-row{margin-bottom:12px}.button{display:inline-block;background:var(--action);color:#fff;border:0;border-radius:6px;padding:11px 17px;font-size:15px;font-weight:600;line-height:1.5;text-decoration:none;min-height:44px}.button:hover{background:#164285;color:#fff}summary{cursor:pointer;color:var(--action);font-size:15px;padding:6px 0}pre{font:13px/1.65 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;max-width:100%;margin:16px 0 0;padding:16px;background:#fff;border-radius:4px}code{font-family:var(--mono);font-size:.86em}pre code{font-size:inherit}.sources .small{margin:14px 0 0}.table-scroll{max-width:100%;overflow:auto;margin:22px 0}table{width:100%;border-collapse:collapse;font-size:14px}th,td{padding:11px;border:1px solid var(--line);text-align:left;vertical-align:top;min-width:105px}th{background:var(--surface)}blockquote{border-left:3px solid var(--line);margin-left:0;padding-left:20px}footer{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);font-size:15px}.notice{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);max-width:calc(100% - 32px);background:var(--ink);color:#fff;padding:12px 20px;border-radius:6px;font-size:14px;z-index:10}.text-button{background:none;border:0;color:var(--action);text-decoration:underline;text-underline-offset:.2em;font-size:14px;padding:8px 0}
@media(max-width:760px){.site-header{padding:14px 20px;gap:18px;min-height:72px}.brand{font-size:27px}.site-header>span{font-size:13px}.app-layout{display:block}.sidebar{position:static;padding:14px 16px;border-bottom:1px solid var(--line)}#step-nav{grid-template-columns:1fr 1fr;gap:4px}#step-nav a{font-size:13px;padding:10px 8px;gap:8px;min-height:44px}.materials-link{margin:12px 8px 0;padding-top:12px;font-size:13px}.materials-link p{display:none}main{padding:28px 22px 40px;border:0}h1{font-size:30px}h2{font-size:23px}body{font-size:16px}.prompt-block{padding:15px}.button{font-size:14px}pre{padding:12px}footer .button{max-width:100%}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media print{.site-header,.sidebar,footer,.copy-row,.notice{display:none!important}.app-layout{display:block}main{padding:0;border:0}body{font-size:11pt}h1{font-size:24pt}pre{font-size:9pt}.prompt-block{break-inside:avoid}}

.tool-help{border-bottom:1px solid var(--line);margin:24px 0;padding-bottom:12px}.tool-help>summary{padding:10px 0}.tool-help[open]>summary{margin-bottom:14px}