:root{--bg:#07111b;--panel:#091724;--text:#f2f7fb;--muted:#a8bac8;--accent:#31d8ff;--warm:#f0a14a;--line:#ffffff18}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;background:#07111b url("../assets/images/home-background.webp") center/cover no-repeat fixed;color:var(--text);line-height:1.65}a{color:inherit}.topbar{position:fixed;inset:0 0 auto 0;z-index:30;height:68px;display:flex;justify-content:space-between;align-items:center;padding:0 max(4vw,24px);background:linear-gradient(180deg,#04101bd9,transparent);transition:.25s}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;text-shadow:0 2px 12px #000}.brand span{display:grid;place-items:center;width:34px;height:34px;border:1px solid #31d8ff88;border-radius:9px;color:var(--accent);font-size:.75rem;font-weight:900}.menu-button{display:flex;align-items:center;gap:7px;border:0;background:#06121bc4;color:var(--text);padding:10px 13px;border-radius:10px;cursor:pointer;backdrop-filter:blur(8px)}.menu-button span{margin-right:5px;font-weight:750}.menu-button i{display:block;width:3px;height:3px;border-radius:50%;background:var(--accent)}.menu-backdrop{position:fixed;inset:0;background:#02070c99;z-index:39;opacity:0;visibility:hidden;transition:.3s;backdrop-filter:blur(3px)}.site-menu{position:fixed;z-index:40;right:0;top:0;height:100vh;width:min(430px,88vw);padding:34px;background:#07131df2;border-left:1px solid #ffffff20;backdrop-filter:blur(18px);transform:translateX(105%);transition:.35s ease;display:flex;flex-direction:column}.menu-open .site-menu{transform:none}.menu-open .menu-backdrop{opacity:1;visibility:visible}.menu-top{display:flex;justify-content:space-between;align-items:center}.menu-top small{letter-spacing:.18em;color:var(--accent);font-weight:900}.menu-top button{font-size:2rem;background:none;border:0;color:var(--text);cursor:pointer}.site-menu nav{display:flex;flex-direction:column;margin:auto 0}.site-menu nav a{font-size:clamp(1.6rem,4vw,2.6rem);font-weight:750;text-decoration:none;padding:14px 0;border-bottom:1px solid var(--line)}.site-menu nav a span{font-size:.7rem;color:var(--accent);margin-right:14px}.site-menu nav a:hover{color:var(--accent)}.site-menu>p{color:var(--muted);font-size:.85rem}.hero{height:100vh;min-height:620px;position:relative;background:transparent}.explore{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;text-transform:uppercase;letter-spacing:.2em;font-size:.7rem;font-weight:850;text-shadow:0 2px 12px #000}.explore span{font-size:1.35rem;color:var(--accent);animation:bob 1.6s infinite}@keyframes bob{50%{transform:translateY(6px)}}main>section:not(.hero),footer{max-width:1180px;margin:24px auto;background:rgba(6,16,26,.94);border:1px solid var(--line);border-radius:20px;box-shadow:0 24px 70px #00000055;backdrop-filter:blur(12px)}.content-panel{padding:64px}.eyebrow{color:var(--accent);letter-spacing:.18em;font-size:.76rem;font-weight:900;margin-bottom:12px}h2{font-size:clamp(2rem,4vw,3.4rem);line-height:1.05;margin:0 0 22px;letter-spacing:-.03em}.split{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}.split p,.section-head>p,.card p,.project-grid p,.contact>p{color:var(--muted)}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:28px}.section-head>p{max-width:540px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:linear-gradient(145deg,#10273a,#0a1927);border:1px solid var(--line);border-radius:16px;padding:24px;min-height:275px;display:flex;flex-direction:column;transition:.2s}.card:hover{transform:translateY(-4px);border-color:#31d8ff55}.card.featured{box-shadow:inset 0 3px var(--accent)}.tag{color:var(--accent);font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;font-weight:850}.card h3{font-size:1.4rem;margin:13px 0 4px}.card h4{margin:0 0 10px;color:#d6e5ef}.card p{flex:1}.card-link{color:var(--accent);font-weight:800;text-decoration:none}.project-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.project-grid article{padding:22px;border-left:2px solid #31d8ff55;background:#ffffff06}.project-grid span{color:var(--warm);font-weight:900}.project-grid h3{margin:8px 0}.btn{display:inline-block;padding:10px 16px;border-radius:9px;text-decoration:none;font-weight:800}.btn.ghost{border:1px solid #ffffff35}footer{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;padding:28px;color:var(--muted);text-align:center}footer strong{color:var(--text)}@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.project-grid{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:1fr;gap:14px}.section-head{display:block}.content-panel{padding:42px}}@media(max-width:620px){body{background-attachment:scroll}.brand b{font-size:.9rem}.grid,.project-grid{grid-template-columns:1fr}.content-panel{padding:30px 22px}main>section:not(.hero),footer{margin:14px}.hero{min-height:100svh}.explore{bottom:18px}}
.about{display:grid;grid-template-columns:.72fr 1.28fr;gap:64px;align-items:start}
.about-title{position:sticky;top:100px}
.about-title h2{font-size:clamp(2rem,3.4vw,3.15rem)}
.about-copy p{color:var(--muted);font-size:1.03rem}
.about-copy strong{color:var(--text)}
.about-copy blockquote{margin:28px 0;padding:22px 26px;border-left:3px solid var(--accent);background:#ffffff08;color:var(--text);font-size:clamp(1.2rem,2vw,1.55rem);font-weight:700;line-height:1.45}
.placeholder{color:var(--muted);padding:20px 0 0}
@media(max-width:900px){.about{grid-template-columns:1fr;gap:18px}.about-title{position:static}}

/* Página editorial dos livros */
.book-page{background:#07111b url("../assets/images/home-background.webp") center/cover no-repeat fixed}
.book-main{max-width:1180px;margin:0 auto;padding:110px 28px 30px}
.book-main>section{border:1px solid var(--line);box-shadow:0 24px 70px #0008;backdrop-filter:blur(14px)}
.book-hero{min-height:650px;display:grid;grid-template-columns:.7fr 1.3fr;gap:64px;align-items:center;padding:64px;background:rgba(5,14,23,.9);border-radius:24px}
.book-cover-placeholder{width:100%;max-width:350px;aspect-ratio:.68;justify-self:center;padding:34px 28px;display:flex;flex-direction:column;justify-content:center;border:1px solid #ffffff30;border-radius:5px;background:linear-gradient(155deg,#173c51,#07131d 58%,#25180f);box-shadow:0 28px 55px #000a,inset 0 0 60px #31d8ff0c;position:relative;overflow:hidden}
.book-cover-placeholder:before{content:"";position:absolute;inset:12px;border:1px solid #31d8ff38}
.book-cover-placeholder span{position:relative;color:var(--accent);font-size:.76rem;letter-spacing:.24em;font-weight:900}
.book-cover-placeholder strong{position:relative;font-size:clamp(2rem,3vw,3rem);line-height:1.02;margin:18px 0;letter-spacing:-.04em}
.book-cover-placeholder small{position:relative;margin-top:auto;color:#d5e0e8;letter-spacing:.08em}
.status{display:inline-block;padding:6px 10px;border-radius:999px;font-size:.68rem;font-weight:900;letter-spacing:.14em;margin-bottom:20px}
.published-status{background:#31d8ff18;border:1px solid #31d8ff70;color:var(--accent)}
.book-intro h1{font-size:clamp(3rem,6vw,5.6rem);line-height:.95;letter-spacing:-.05em;margin:.08em 0 .25em}
.book-subtitle{font-size:1.3rem!important;color:#dbe8ef!important;max-width:680px}
.book-intro>p{color:var(--muted);font-size:1.04rem;max-width:700px}
.book-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.book-story{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px;margin-top:24px;padding:60px 64px;background:rgba(7,18,28,.94);border-radius:22px}
.book-story p{color:var(--muted);font-size:1.03rem}
.digital-section{margin-top:24px;padding:60px 64px;background:rgba(7,18,28,.94);border-radius:22px}
.book-carousel{min-height:420px;border:1px solid var(--line);background:#03090f99}
.carousel-empty{display:flex;flex-direction:column;gap:8px;color:var(--muted);text-align:center}.carousel-empty strong{font-size:1.3rem;color:var(--text)}
.book-back{padding:28px 4px}.book-back a{color:var(--accent);font-weight:800;text-decoration:none}
@media(max-width:850px){.book-hero{grid-template-columns:1fr;padding:38px 28px}.book-cover-placeholder{max-width:280px}.book-story{grid-template-columns:1fr;gap:12px;padding:40px 30px}.digital-section{padding:40px 30px}.book-intro h1{font-size:3.4rem}}
@media(max-width:620px){.book-page{background-attachment:scroll}.book-main{padding:88px 14px 20px}.book-hero{padding:28px 20px}.book-intro h1{font-size:2.8rem}.digital-section,.book-story{padding:30px 22px}.book-carousel{min-height:300px}}

/* Carrossel editorial — ValeDouro */
.book-carousel{position:relative;overflow:hidden;border-radius:16px;display:grid;place-items:center}
.carousel-slide{display:none;width:100%;margin:0;position:relative}
.carousel-slide.active{display:block}
.carousel-slide img{display:block;width:100%;height:min(64vh,650px);object-fit:contain;background:#02070c}
.carousel-slide figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 22px 16px;background:linear-gradient(transparent,#02070ddd);color:#eef7fb;text-align:center;font-size:.95rem}
.digital-section .controls{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:18px}
.digital-section .controls button{border:1px solid #ffffff2c;background:#0b1a27;color:var(--text);border-radius:9px;padding:10px 16px;font-weight:800;cursor:pointer}
.digital-section .controls button:hover{border-color:#31d8ff80;color:var(--accent)}
.digital-section [data-status]{min-width:52px;text-align:center;color:var(--muted);font-weight:800}
.book-cover-placeholder img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
@media(max-width:620px){.carousel-slide img{height:auto;max-height:70vh}.carousel-slide figcaption{font-size:.82rem;padding:28px 14px 12px}}

/* Correção robusta do carrossel: apenas um slide visível mesmo antes/depois do JS */
.book-carousel .carousel-slide{display:none!important}
.book-carousel .carousel-slide.active{display:block!important}
.book-carousel .carousel-slide[hidden]{display:none!important}


/* Responsividade mobile — preserva a hierarquia editorial em telas pequenas */
@media(max-width:620px){
  html,body{max-width:100%;overflow-x:hidden}
  .topbar{height:60px;padding:0 14px;background:#04101bf2;backdrop-filter:blur(10px)}
  .brand{min-width:0;gap:8px}.brand span{width:30px;height:30px}.brand b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .menu-button{padding:8px 10px}.menu-button span{font-size:.82rem}
  .site-menu{width:92vw;max-width:360px;padding:24px 22px}.site-menu nav a{font-size:1.45rem;padding:11px 0}
  main>section:not(.hero),footer{width:auto;max-width:none;margin:12px 10px;border-radius:16px}
  .content-panel{padding:34px 20px}
  h2{font-size:2rem;line-height:1.08}
  .about{display:block}.about-title{margin-bottom:22px}.about-copy p{font-size:.98rem}.about-copy blockquote{margin:22px 0;padding:18px 18px;font-size:1.1rem}
  .section-head{display:block;margin-bottom:22px}.section-head>p{max-width:none;margin-top:12px}
  .grid,.project-grid{display:grid;grid-template-columns:1fr;gap:12px}
  .card{min-height:0;padding:20px}.card h3{font-size:1.25rem}.card p{margin-bottom:18px}
  .project-grid article{padding:18px}
  footer{padding:22px 16px;gap:7px;flex-direction:column}
  .hero{height:100svh;min-height:520px;background-position:center top}
  .explore{bottom:20px}

  .book-main{width:100%;max-width:none;padding:76px 10px 18px}
  .book-main>section{width:100%;margin-left:0;margin-right:0;border-radius:16px}
  .book-hero{display:flex;flex-direction:column;gap:28px;min-height:0;padding:24px 18px;align-items:stretch}
  .book-cover-placeholder{width:min(78vw,290px);max-width:290px;aspect-ratio:.68;padding:0;align-self:center;justify-self:auto;flex:none}
  .book-cover-placeholder:before{inset:8px}
  .book-intro{width:100%;min-width:0}.book-intro h1{font-size:clamp(2.35rem,12vw,3.15rem);line-height:.98;overflow-wrap:anywhere}
  .book-subtitle{font-size:1.12rem!important;line-height:1.45}.book-intro>p{font-size:.98rem}
  .status{font-size:.6rem;letter-spacing:.1em;margin-bottom:14px;max-width:100%}
  .book-actions{display:grid;grid-template-columns:1fr;gap:10px}.book-actions .btn{text-align:center;width:100%}
  .book-story{display:block;padding:30px 20px}.book-story>div:first-child{margin-bottom:24px}.book-story p{font-size:.98rem}
  .digital-section{padding:30px 16px}.book-carousel{min-height:0;width:100%}
  .carousel-slide img{width:100%;height:auto;max-height:68svh;object-fit:contain}
  .carousel-slide figcaption{position:relative;padding:12px 10px;background:#02070d;color:#eef7fb}
  .digital-section .controls{display:grid;grid-template-columns:1fr auto 1fr;gap:8px;width:100%}
  .digital-section .controls button{padding:10px 8px;font-size:.78rem;white-space:nowrap}
  .digital-section [data-status]{min-width:38px}
  .book-back{padding:22px 8px}
}


/* Páginas dos projetos educacionais */
.project-page{background:#07111b url("../assets/images/home-background.webp") center/cover no-repeat fixed}
.project-main{max-width:1180px;margin:0 auto;padding:110px 28px 30px}
.project-main>section{border:1px solid var(--line);box-shadow:0 24px 70px #0008;backdrop-filter:blur(14px);border-radius:22px}
.project-hero{min-height:570px;display:grid;grid-template-columns:1.25fr .75fr;gap:64px;align-items:center;padding:64px;background:rgba(5,14,23,.92)}
.project-hero h1{font-size:clamp(3.5rem,7vw,6.4rem);line-height:.92;letter-spacing:-.055em;margin:.08em 0 .25em}
.project-hero>div>p:not(.eyebrow){color:var(--muted);font-size:1.05rem;max-width:680px}
.project-lead{font-size:1.35rem!important;color:#dbe8ef!important;line-height:1.45}
.project-visual{aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px;border:1px solid #31d8ff45;border-radius:50%;background:radial-gradient(circle,#123449,#07131d 65%);box-shadow:0 30px 80px #000a,inset 0 0 60px #31d8ff12}
.project-visual strong{font-size:clamp(1.5rem,3vw,2.5rem);letter-spacing:.05em}.project-visual span{color:var(--accent);margin-top:8px;font-size:.78rem;letter-spacing:.08em}
.project-story{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px;margin-top:24px;padding:60px 64px;background:rgba(7,18,28,.94)}
.project-story p,.project-details p,.project-book-link p{color:var(--muted);font-size:1.03rem}
.project-details{margin-top:24px;padding:60px 64px;background:rgba(7,18,28,.94)}
.project-feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.project-feature-grid article{padding:22px;border-top:2px solid #31d8ff55;background:#ffffff06}
.project-feature-grid span{color:var(--warm);font-weight:900}.project-feature-grid h3{margin:8px 0}
.project-book-link{margin-top:24px;padding:60px 64px;background:rgba(7,18,28,.94)}
.project-book-link p{max-width:780px}.project-book-link .btn{margin-top:12px}
.project-note{display:block;color:var(--muted)!important;font-size:.8rem;margin-top:auto}
.project-grid .card-link{display:inline-block;margin-top:12px}
@media(max-width:850px){.project-hero{grid-template-columns:1fr;padding:42px 30px}.project-visual{width:min(330px,70vw);justify-self:center}.project-story{grid-template-columns:1fr;gap:12px;padding:40px 30px}.project-feature-grid{grid-template-columns:repeat(2,1fr)}.project-details,.project-book-link{padding:40px 30px}}
@media(max-width:620px){.project-page{background-attachment:scroll}.project-main{padding:76px 10px 18px}.project-main>section{border-radius:16px}.project-hero{display:flex;flex-direction:column;min-height:0;gap:28px;padding:30px 20px}.project-hero h1{font-size:clamp(2.7rem,14vw,4rem)}.project-lead{font-size:1.12rem!important}.project-visual{width:min(68vw,250px);padding:20px}.project-story{display:block;padding:30px 20px}.project-story>div:first-child{margin-bottom:24px}.project-details,.project-book-link{padding:30px 20px}.project-feature-grid{grid-template-columns:1fr;gap:10px}.project-feature-grid article{padding:18px}}


/* Estrutura das demonstrações */
.demo-btn{background:var(--accent);color:#04101b!important;border:1px solid var(--accent)!important}
.demo-page{min-height:100vh;background:#07111b url("../assets/images/home-background.webp") center/cover no-repeat fixed}
.demo-shell{max-width:900px;min-height:calc(100vh - 100px);margin:0 auto;padding:60px 24px;display:flex;flex-direction:column;justify-content:center}
.demo-brand{align-self:flex-start;display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;margin-bottom:24px}.demo-brand span{display:grid;place-items:center;width:34px;height:34px;border:1px solid #31d8ff88;border-radius:9px;color:var(--accent);font-size:.75rem}
.demo-card{padding:60px;border:1px solid var(--line);border-radius:24px;background:rgba(5,14,23,.94);box-shadow:0 24px 70px #0008;backdrop-filter:blur(14px)}
.demo-card h1{font-size:clamp(3rem,8vw,6rem);line-height:.95;letter-spacing:-.05em;margin:.1em 0 .25em}.demo-lead{font-size:1.25rem;color:#dbe8ef}
.demo-status{margin:34px 0;padding:24px;border-left:3px solid var(--accent);background:#ffffff08}.demo-status strong{font-size:1.25rem}.demo-status p{color:var(--muted);margin-bottom:0}
.demo-plan{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:28px 0}.demo-plan span{padding:14px;background:#ffffff06;border:1px solid var(--line);font-size:.78rem;color:var(--muted)}
@media(max-width:620px){.demo-page{background-attachment:scroll}.demo-shell{padding:28px 10px;min-height:auto}.demo-card{padding:34px 20px;border-radius:16px}.demo-card h1{font-size:3rem}.demo-plan{grid-template-columns:1fr}.demo-card .book-actions{grid-template-columns:1fr}}


/* CTA gráfico ResolveTech */
.project-play-wrap{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px}
.project-play-button{width:min(100%,360px);min-height:250px;padding:38px 28px 30px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;text-decoration:none;border:1px solid #31d8ff55;border-radius:28px;background:linear-gradient(145deg,#0d2536,#07131d 68%);box-shadow:0 28px 70px #0009,inset 0 0 55px #31d8ff0c;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;position:relative;overflow:hidden}
.project-play-button:before{content:"";position:absolute;inset:10px;border:1px solid #31d8ff20;border-radius:20px;pointer-events:none}
.project-play-button:hover{transform:translateY(-4px);border-color:#31d8ffaa;box-shadow:0 34px 80px #000b,0 0 32px #31d8ff1c,inset 0 0 65px #31d8ff14}
.project-play-logo{position:relative;font-size:clamp(2rem,3.5vw,3.15rem);font-weight:950;line-height:.9;letter-spacing:-.055em;color:#f4f8fb;text-shadow:0 3px 18px #000}
.project-play-logo span{color:var(--accent)}
.project-play-button small{position:relative;margin:17px 0 25px;color:#9dc4d6;letter-spacing:.08em;font-size:.72rem}
.project-play-button b{position:relative;display:flex;align-items:center;gap:10px;padding:12px 22px;border-radius:10px;background:var(--accent);color:#04101b;font-size:1rem;letter-spacing:.06em;box-shadow:0 8px 25px #31d8ff25}
.project-play-button b i{font-style:normal;font-size:.82rem}
.project-learn-link{color:#b7c9d5;text-decoration:none;font-size:.86rem;font-weight:750;border-bottom:1px solid #ffffff28;padding-bottom:3px;transition:.2s}
.project-learn-link:hover{color:var(--accent);border-color:#31d8ff70}
@media(max-width:850px){.project-play-wrap{width:100%}.project-play-button{width:min(420px,100%);min-height:220px}}
@media(max-width:620px){.project-play-wrap{gap:14px}.project-play-button{width:100%;min-height:190px;padding:28px 18px 24px;border-radius:20px}.project-play-button:before{inset:7px;border-radius:14px}.project-play-logo{font-size:clamp(2rem,11vw,2.8rem)}.project-play-button small{margin:13px 0 20px;font-size:.64rem}.project-play-button b{width:min(220px,100%);justify-content:center;padding:11px 16px}}