:root{--bg: #fbfaf7;--panel: #ffffff;--ink: #202124;--muted: #5d6572;--line: #d9ded7;--accent: #2f6f68;--accent-strong: #173f3b;--warm: #d98b45;--soft: #eef5f1;--blue-soft: #eef3fa;--shadow: 0 16px 45px rgba(35, 44, 38, .08);--radius: 8px;--max: 1120px}*{box-sizing:border-box}html{color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}body{margin:0;background:var(--bg);color:var(--ink)}a{color:inherit}img,svg{display:block;max-width:100%}button,input{font:inherit}:focus-visible{outline:3px solid #173f3b;outline-offset:3px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}.site-header{border-bottom:1px solid var(--line);background:#fbfaf7f0;position:sticky;top:0;z-index:10;backdrop-filter:blur(14px)}.site-header__inner,.section,.site-footer__inner{width:min(var(--max),calc(100% - 32px));margin:0 auto}.site-header__inner{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:760;text-decoration:none}.brand__mark{width:30px;height:30px;border:2px solid var(--accent-strong);border-radius:var(--radius);display:grid;place-items:center;color:var(--accent-strong);background:var(--soft)}.site-nav{display:flex;align-items:center;gap:18px;color:var(--muted);font-size:.95rem}.site-nav a{text-decoration:none}.site-nav a:hover{color:var(--ink)}.menu-button{display:none;border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);padding:8px 10px}.section{padding:56px 0}.section--tight{padding:34px 0}.eyebrow{color:var(--accent);font-size:.78rem;font-weight:780;letter-spacing:0;text-transform:uppercase}.section h1,.section h2,.section h3{line-height:1.08;letter-spacing:0}.section h1{font-size:4.6rem;max-width:920px;margin:12px 0 20px}.section h2{font-size:2.5rem;margin:0 0 14px}.section p{color:var(--muted);max-width:760px}.lead{font-size:1.25rem}.button-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:var(--radius);border:1px solid var(--accent-strong);background:var(--accent-strong);color:#fff;text-decoration:none;font-weight:720}.button--secondary{color:var(--accent-strong);background:transparent}.breadcrumbs{margin-bottom:18px;color:var(--muted);font-size:.9rem}.breadcrumbs ol{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:0;margin:0;list-style:none}.breadcrumbs li{display:inline-flex;align-items:center;gap:8px}.breadcrumbs li+li:before{content:"/";color:#98a19a}.breadcrumbs a{color:var(--accent-strong);text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.topic-nav,.lab-rail{display:flex;gap:10px;overflow-x:auto;padding:4px 2px 10px;scrollbar-width:thin}.topic-nav a,.lab-rail a{flex:0 0 auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);text-decoration:none;box-shadow:0 10px 30px #232c260f}.topic-nav a{padding:10px 12px;color:var(--muted);font-weight:720}.topic-nav a[data-active=true],.lab-rail a[data-active=true]{border-color:var(--accent-strong);background:var(--soft);color:var(--accent-strong)}.rail-heading{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:18px}.rail-heading h2,.rail-heading p{margin-top:0}.mini-nav{display:flex;gap:10px;flex-wrap:wrap}.mini-nav a{border:1px solid var(--line);border-radius:var(--radius);padding:9px 11px;background:var(--panel);color:var(--accent-strong);text-decoration:none;font-weight:720}.lab-rail a{width:min(260px,78vw);min-height:88px;display:grid;grid-template-columns:auto 1fr;align-items:start;gap:10px;padding:14px}.lab-rail span{color:var(--warm);font-weight:820;font-size:.78rem}.lab-rail strong{line-height:1.2}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.card h3{margin:8px 0 10px;font-size:1.18rem}.card p{margin:0 0 16px;font-size:.96rem}.tag{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;padding:4px 9px;color:var(--accent-strong);background:var(--soft);font-size:.78rem;font-weight:700}.site-footer{border-top:1px solid var(--line);padding:34px 0;color:var(--muted)}.site-footer__inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.site-footer nav{display:flex;gap:16px;flex-wrap:wrap}@media(max-width:780px){.menu-button{display:inline-flex}.site-nav{display:none;position:absolute;top:68px;left:16px;right:16px;padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}.site-nav[data-open=true]{display:flex}.rail-heading{align-items:stretch;flex-direction:column}.topic-nav{margin-left:-2px;margin-right:-2px}.card-grid{grid-template-columns:1fr}.section{padding:40px 0}.section h1{font-size:2.35rem}.section h2{font-size:1.65rem}.lead{font-size:1.08rem}}