:root{--bg:#f4f7f4;--card:#fff;--text:#18251f;--muted:#64756d;--brand:#1f6946;--brand2:#2f865e;--line:#dfe8e2;--warn:#fff4d8;--danger:#7d2b20;--shadow:0 8px 28px rgba(20,50,35,.08);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}body.dark{--bg:#0f1713;--card:#16231c;--text:#eef6f0;--muted:#a8b7ae;--line:#2b3b32;--warn:#302a17;--shadow:none}
button,input,select{font:inherit}button{cursor:pointer}.app{max-width:1180px;margin:auto;min-height:100vh;padding-bottom:82px}
header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 90%, transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);display:flex;gap:12px;align-items:center;padding:14px 18px}
.logo{display:flex;gap:10px;align-items:center;font-weight:800;letter-spacing:.2px}.logo img{width:38px;height:38px;border-radius:10px}.grow{flex:1}.top-actions{display:flex;gap:8px}.iconbtn,.btn{border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:12px;padding:10px 12px}.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:700}.btn.ghost{background:transparent}
main{padding:18px}.hero{display:grid;grid-template-columns:1.4fr .8fr;gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow)}h1,h2,h3{margin-top:0}.muted{color:var(--muted)}.progress{height:10px;background:var(--line);border-radius:999px;overflow:hidden}.progress>span{display:block;height:100%;background:var(--brand);width:0}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0}.stat strong{font-size:1.4rem;display:block}.section-title{display:flex;justify-content:space-between;align-items:center;margin:24px 0 10px}.quick{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.quick .card{min-height:105px}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.track-meta{display:flex;justify-content:space-between;gap:10px}.chapter{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--line)}.chapter:first-of-type{border-top:0}.chapter .num{width:34px;height:34px;border-radius:10px;background:var(--bg);display:grid;place-items:center;font-weight:700}.chapter .done{margin-left:auto}.page{display:none}.page.active{display:block}.bottom{position:fixed;bottom:0;left:0;right:0;background:var(--card);border-top:1px solid var(--line);display:flex;justify-content:center;z-index:30}.bottom-inner{width:min(100%,760px);display:grid;grid-template-columns:repeat(5,1fr)}.navbtn{border:0;background:transparent;color:var(--muted);padding:10px 4px;font-size:.78rem}.navbtn.active{color:var(--brand);font-weight:800}.navbtn span{display:block;font-size:1.25rem;margin-bottom:2px}.searchbox{display:flex;gap:8px}.searchbox input,.field{width:100%;border:1px solid var(--line);background:var(--card);color:var(--text);padding:12px 14px;border-radius:12px}.op-step{position:relative;padding-left:28px;margin-bottom:12px}.op-step:before{content:"";position:absolute;left:7px;top:7px;width:10px;height:10px;background:var(--brand);border-radius:50%}.op-step:after{content:"";position:absolute;left:11px;top:20px;bottom:-14px;width:2px;background:var(--line)}.op-step:last-child:after{display:none}.detail{display:none;margin-top:10px}.op-step.open .detail{display:block}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{padding:7px 10px;border-radius:999px;background:var(--bg);border:1px solid var(--line)}.check-item{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}.glossary-item{padding:12px 0;border-bottom:1px solid var(--line)}.modal{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;align-items:center;justify-content:center;padding:20px;z-index:50}.modal.open{display:flex}.modal .card{width:min(640px,100%);max-height:85vh;overflow:auto}.lang-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.toast{position:fixed;right:18px;bottom:90px;background:var(--text);color:var(--bg);padding:11px 14px;border-radius:12px;opacity:0;transform:translateY(10px);transition:.2s;z-index:90}.toast.show{opacity:1;transform:none}
@media(max-width:800px){.hero,.grid{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}.quick{grid-template-columns:repeat(2,1fr)}header{padding:10px 12px}.top-actions .hide-sm{display:none}main{padding:14px}.card{padding:15px}}
@media(min-width:900px){.bottom{left:50%;transform:translateX(-50%);width:760px;border:1px solid var(--line);border-radius:18px 18px 0 0}}

.chapterbtn{width:100%;border:0;background:transparent;color:var(--text);text-align:left}.chapterbtn:hover{background:var(--bg)}
.chapter-hero{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin:12px 0 16px}.eyebrow{font-size:.75rem;font-weight:900;letter-spacing:.12em;color:var(--brand)}.lead{font-size:1.08rem;line-height:1.65;color:var(--muted)}.chapter-actions{display:flex;gap:8px;flex-wrap:wrap}
.reading-layout{display:grid;grid-template-columns:230px 1fr;gap:16px}.toc{position:sticky;top:82px;height:max-content}.toc a{display:block;color:var(--muted);text-decoration:none;padding:8px 0;border-bottom:1px solid var(--line)}.chapter-body{line-height:1.7}.chapter-body section{padding:8px 0 18px}.chapter-body li{margin:8px 0}.knowledge{display:flex;gap:10px;align-items:flex-start;background:var(--bg);padding:12px;border-radius:12px;margin:8px 0}.knowledge span{color:var(--brand);font-weight:900}.warningbox,.successbox{padding:13px 15px;border-radius:12px;margin:14px 0}.warningbox{background:var(--warn)}.successbox{background:color-mix(in srgb,var(--brand) 14%,var(--card));border:1px solid color-mix(in srgb,var(--brand) 30%,var(--line))}.chapter-footer{display:flex;justify-content:space-between;gap:8px;margin-top:20px}.quiz-options{display:grid;gap:8px}.quizopt{text-align:left}.listrow{width:100%;display:flex;justify-content:space-between;gap:14px;text-align:left;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--text);padding:13px 4px}.listrow small{display:block;color:var(--muted);margin-top:5px}.result{text-align:left;color:var(--text)}.safety-card{border-left:4px solid var(--brand)}textarea.field{resize:vertical}.metric-big{font-size:2.2rem;font-weight:900}
@media(max-width:800px){.reading-layout{grid-template-columns:1fr}.toc{display:none}.chapter-hero{display:block}.chapter-actions{margin-top:14px}.chapter-footer{flex-wrap:wrap}.chapter-footer .btn{flex:1}}

.offline{display:none;position:sticky;top:0;z-index:100;background:#7b2d24;color:#fff;text-align:center;padding:8px;font-size:.9rem}.hero-main{background:linear-gradient(135deg,var(--card),color-mix(in srgb,var(--brand) 9%,var(--card)))}.mission hr,article hr{border:0;border-top:1px solid var(--line);margin:18px 0}.attention{margin-top:16px;background:var(--warn)}.equipment-card{position:relative}.equip-icon{width:52px;height:52px;border-radius:15px;display:grid;place-items:center;background:var(--bg);font-size:1.65rem;margin-bottom:12px}.equip-icon.big{width:72px;height:72px;font-size:2.2rem}.danger{border-color:#9a3f34!important;color:#9a3f34!important}.onboard{text-align:center;width:min(720px,100%)!important}.onlogo{width:90px;height:90px;border-radius:24px}.onstep{display:none}.onstep.active{display:block}.onstep .btn.primary{min-width:220px}.modal#onboarding{background:rgba(9,20,14,.88)}.modal#onboarding .card{max-height:92vh}.lang-grid .btn{min-height:48px}.card button.card{border:1px solid var(--line);color:var(--text)}.page h1{letter-spacing:-.02em}.safety-card ul,.equipment-card ul{padding-left:18px}.result{width:100%;text-align:left}.chip button{border:0;background:transparent}

/* Módulo de Classificação — adição isolada; conteúdo original preservado */
.class-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 16px}.class-head{margin-bottom:14px}.classification-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.defect-card{padding:0;overflow:hidden}.defect-image-wrap{background:#eef2ef;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;overflow:hidden}.defect-image-wrap img{width:100%;height:100%;object-fit:cover;display:block}.defect-copy{padding:16px}.defect-copy h3{margin:0}.defect-copy p{line-height:1.6}.defect-copy .track-meta{align-items:flex-start}.defect-copy .chip{white-space:nowrap}@media(max-width:700px){.classification-grid{grid-template-columns:1fr}.defect-image-wrap{aspect-ratio:4/3}}

/* Fotos de equipamentos — atualização visual 3.0.2 */
.equipment-thumb{height:180px;border-radius:14px;overflow:hidden;margin:-4px -4px 14px;background:#eef2ef}.equipment-thumb img,.equip-photo{width:100%;height:100%;object-fit:cover;display:block}.equipment-hero{display:grid;grid-template-columns:minmax(280px,42%) 1fr;gap:24px;align-items:center}.equip-photo-wrap{width:100%;height:300px;border-radius:16px;overflow:hidden;background:#eef2ef}@media(max-width:760px){.equipment-hero{grid-template-columns:1fr}.equip-photo-wrap{height:220px}}