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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* Editorial identity and visual navigation */
.site-header{background:#fff}.header-inner{min-height:112px}.brand-logo{width:108px;height:108px;object-fit:contain;display:block}.site-footer .brand{background:#fff;border-radius:3px;padding:4px 14px}.hero{padding:68px 0}.hero-grid{grid-template-columns:1.15fr 1fr;align-items:center}.hero h1{font-size:clamp(3rem,4.4vw,4.8rem)}.engineering-board{padding:0;overflow:hidden;position:relative}.engineering-board .hero-photo{display:block;width:100%;height:270px;object-fit:cover}.board-heading{padding:22px 28px 0;margin-bottom:8px}.board-row{padding:16px 28px}.board-footer{padding:16px 28px}.board-row h2{font-size:1.05rem}.board-row p{font-size:.875rem}.specialty-section{background:#ecefea}.specialty-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.specialty-grid>a{position:relative;background:#fff;padding:30px;border:1px solid var(--line);transition:transform .2s,box-shadow .2s}.specialty-grid>a:hover{transform:translateY(-4px);box-shadow:0 12px 30px #1025360d}.specialty-number{color:#80703b;font:500 .85rem monospace}.specialty-grid h3{font-size:1.35rem;margin:22px 0 12px}.specialty-grid p{font-size:.95rem;color:var(--muted);margin-bottom:0}.specialty-arrow{position:absolute;right:24px;top:24px;font-size:1.5rem}.article-card{padding:0;overflow:hidden;background:#fff;border-radius:4px;transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}.article-card:hover{transform:translateY(-4px);box-shadow:0 16px 35px #10253612}.article-card-content{padding:24px;display:flex;flex-direction:column;flex:1}.article-card-content .card-link{margin-top:auto}.editorial-image{width:100%;height:auto;display:block;object-fit:cover}.article-image-link{display:block;overflow:hidden}.article-image-link img{aspect-ratio:16/10;transition:transform .4s}.article-card:hover .article-image-link img{transform:scale(1.035)}.article-card h3{font-size:1.35rem;line-height:1.25}.blog-hero{background:var(--paper);color:var(--ink);padding:34px 0 42px!important;border-bottom:1px solid var(--line)}.blog-hero .eyebrow{color:#756632}.blog-hero h1{font-size:3.6rem;max-width:780px;margin-bottom:20px}.blog-hero h1 em{color:var(--ink);font-style:normal}.blog-hero .breadcrumbs{color:var(--muted);margin-bottom:24px}.blog-hero p:last-child{color:var(--muted);max-width:700px;font-size:1.1rem}.editorial-lead{padding:42px 0 16px}.editorial-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:32px}.lead-story{position:relative;min-height:440px;display:flex;align-items:flex-end;overflow:hidden;border-radius:4px;background:var(--ink);color:#fff}.lead-story>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.lead-story:after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,#10253600 15%,#102536ee 100%)}.lead-story-copy{position:relative;z-index:1;padding:32px}.lead-story-copy h2{font-size:2.2rem;line-height:1.15;margin:15px 0}.lead-story-copy p{color:#e0e8eb;font-size:1rem;margin-bottom:18px}.lead-story-copy .eyebrow{color:#f2d671}.story-meta{font-size:.8rem}.reading-selection{border-top:4px solid var(--gold);padding:24px;background:#fff;border-radius:3px}.reading-selection>h2{font-size:1.6rem;margin-bottom:20px}.reading-selection>a{display:flex;gap:18px;border-top:1px solid var(--line);padding:20px 0}.reading-selection>a>span{font:500 1.45rem monospace;color:#a29157}.reading-selection small{color:var(--muted)}.reading-selection h3{font-size:1.05rem;line-height:1.35;margin:7px 0 0}.reading-selection .selection-cta{font-weight:600;font-size:.875rem;color:var(--ink)}.blog-library{padding-top:42px}.library-heading h2{font-size:2.1rem}.topic-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:28px 0}.topic-tabs button{border:1px solid var(--line);padding:10px 17px;background:#fff;border-radius:30px;color:var(--ink);font:600 .85rem inherit;cursor:pointer}.topic-tabs button.active{background:var(--ink);color:#fff;border-color:var(--ink)}.blog-controls{background:#ecefea;padding:22px;border-radius:4px}.article-heading{background:var(--paper);padding-bottom:0}.article-cover{margin:35px 0 0}.article-cover img{aspect-ratio:21/9;object-fit:cover;border-radius:4px}.article-cover figcaption{color:var(--muted);font-size:.75rem;padding-top:10px}.back-to-top{position:fixed;right:24px;bottom:24px;z-index:30;width:44px;height:44px;border:1px solid #fff;background:var(--ink);color:#fff;border-radius:50%;font-size:1.4rem;cursor:pointer;box-shadow:0 4px 16px #0002}.back-to-top[hidden]{display:none}a:focus-visible,button:focus-visible{outline:3px solid #b49b3b;outline-offset:4px}section[id]{scroll-margin-top:125px}
@media(max-width:900px){.header-inner{min-height:92px}.brand-logo{width:88px;height:88px}#main-nav{top:92px}.hero-grid{grid-template-columns:1fr}.engineering-board{display:block;max-width:none}.engineering-board .hero-photo{height:300px}.board-row{display:flex}.specialty-grid{grid-template-columns:repeat(2,1fr)}.editorial-grid{grid-template-columns:1fr}.reading-selection{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.reading-selection>.eyebrow,.reading-selection>h2,.reading-selection>.selection-cta{grid-column:1/-1}}
@media(max-width:620px){.hero{padding:42px 0}.hero h1{font-size:2.8rem}.engineering-board .hero-photo{height:230px}.board-heading{padding:20px 24px 0}.board-row,.board-footer{padding:16px 24px}.specialty-grid{grid-template-columns:1fr}.blog-hero h1{font-size:2.7rem}.editorial-lead{padding-top:25px}.lead-story{min-height:430px}.lead-story-copy{padding:24px}.lead-story-copy h2{font-size:1.85rem}.reading-selection{display:block}.topic-tabs{flex-wrap:nowrap;overflow-x:auto;padding:4px 4px 12px;margin-left:-4px;margin-right:-4px}.topic-tabs button{flex-shrink:0}.blog-controls{padding:18px}.article-card{min-height:0}.article-cover img{aspect-ratio:16/10}.article-card-content{padding:22px}.back-to-top{right:16px;bottom:16px}}
.lead-story{background-image:linear-gradient(180deg,rgba(16,37,54,.05) 10%,rgba(16,37,54,.94) 100%),url("/assets/engenharia.png");background-size:cover;background-position:center}.lead-story>img{opacity:0}.lead-story:after{display:none}
.lead-story{display:block;background:#fff;color:var(--ink);border:1px solid var(--line)}.lead-story>img{position:static;opacity:1;height:260px;width:100%;object-fit:cover}.lead-story-copy{padding:26px}.lead-story-copy .eyebrow{color:#756632}.lead-story-copy p{color:var(--muted)}.lead-story-copy h2{font-size:1.8rem}
.social-links{display:flex;flex-wrap:wrap;gap:16px 30px;margin:24px 0;font-size:.875rem}.social-links a:hover{text-decoration:underline}.whatsapp-floating{position:fixed;bottom:22px;right:22px;z-index:31;background:#167844;color:#fff;padding:13px 20px;border-radius:32px;display:flex;align-items:center;gap:10px;font-size:.9rem;font-weight:700;box-shadow:0 4px 18px #10253626}.whatsapp-floating:hover{background:#105c33}.whatsapp-floating>span:first-child{font-size:1.3rem}.back-to-top{bottom:86px}.site-footer .brand{background:transparent;padding:0}.site-footer .brand-logo{filter:invert(1)}@media(max-width:620px){.whatsapp-floating{right:16px;bottom:16px;padding:11px 16px}.back-to-top{bottom:76px}}
.lead-story{background-image:none}.article-image-link .editorial-image{background:#e8eceb;aspect-ratio:3/2}.article-cover .editorial-image{background:#e8eceb}