:root {
    --cor-teal: #2a8f93; 
    --preto: #111111;
    --cinza-escuro: #333333;
    --cinza-medio: #888888;
    --cinza-claro: #f7f7f7;
    --branco: #ffffff;
    --fonte: 'Jost', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--fonte);
    scroll-behavior: smooth;
}

body {
    background-color: var(--branco);
    color: var(--cinza-escuro);
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }

header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    padding: 0 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.logo img{
    width: 150px;
    height: 90px;
}

nav ul { display: flex; list-style: none; gap: 2.5rem; }

nav a {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover, nav a.active { color: var(--cor-teal); }

.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.2)), 
                url('./imagens/banner.png') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--branco);
    padding-top: 80px;
}

.hero-content { max-width: 800px; padding: 0 20px; }
.hero-content h1 {
    font-size: 4rem;
    font-weight: 300;
    letter-spacing: 4px;
    margin-bottom: 1rem;
    text-transform: uppercase;
    text-shadow: #272727 1px 1px;
}
.hero-content p {
    font-size: 1.2rem;
    font-weight: 300;
    letter-spacing: 1px;
    margin-bottom: 2.5rem;
    text-shadow: #272727 1px 1px;
}

.btn-solid {
    background-color: var(--cor-teal);
    padding: 15px 40px;
    color: var(--branco);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 2px;
    font-weight: 500;
    transition: all 0.3s;
    border: 1px solid var(--cor-teal);
    display: inline-block;
}
.btn-solid:hover {
    background-color: transparent;
    color: var(--branco);
    border-color: var(--branco);
}

.titulo-sessao { text-align: center; margin-bottom: 3rem; }
.titulo-sessao span {
    display: block;
    color: var(--cor-teal);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 10px;
}
.titulo-sessao h2 {
    font-size: 2.2rem;
    font-weight: 400;
    color: var(--preto);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.categorias {
    padding: 6rem 0 6rem 5%;
    background-color: var(--branco);
    position: relative;
}

.carousel-wrapper { position: relative; display: flex; align-items: center; }
.carousel-track {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    padding-right: 5%;
    -ms-overflow-style: none;  
    scrollbar-width: none;  
}
.carousel-track::-webkit-scrollbar { display: none; }

.categoria-card {
    min-width: 300px;
    height: 400px;
    scroll-snap-align: start;
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
}
.categoria-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.categoria-card:hover img { transform: scale(1.08); }
.categoria-card .overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 30px 20px;
    color: var(--branco);
}
.categoria-card h3 { font-size: 1.5rem; font-weight: 400; letter-spacing: 1px; }

.btn-scroll {
    background: var(--branco);
    color: var(--preto);
    border: 1px solid #ddd;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    position: absolute;
    z-index: 10;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: 0.3s;
}
.btn-scroll:hover { background: var(--cor-teal); color: var(--branco); border-color: var(--cor-teal); }
.btn-prev { left: 2%; }
.btn-next { right: 2%; }

.manifesto { padding: 6rem 10%; text-align: center; background-color: var(--cinza-claro); }
.manifesto p { font-size: 1.2rem; line-height: 1.8; max-width: 800px; margin: 0 auto; color: #555; font-weight: 300; }

.materiais { padding: 6rem 5%; background-color: var(--branco); }
.grid-materiais { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 3rem; text-align: center; margin-top: 3rem; }
.material-box i { font-size: 2.5rem; color: var(--cor-teal); margin-bottom: 1.5rem; }
.material-box h3 { font-size: 1.2rem; font-weight: 500; margin-bottom: 1rem; text-transform: uppercase; }
.material-box p { color: var(--cinza-medio); font-size: 0.95rem; font-weight: 300; }

.cta-arquitetos {
    padding: 8rem 5%;
    background: linear-gradient(rgba(42, 143, 147, 0.9), rgba(42, 143, 147, 0.9)), 
                url('https://images.unsplash.com/photo-1497366216548-37526070297c?auto=format&fit=crop&w=1600&q=80') center/cover fixed;
    text-align: center;
    color: var(--branco);
}
.cta-arquitetos h2 { font-size: 2.5rem; font-weight: 400; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 1rem; }
.cta-arquitetos p { font-size: 1.1rem; font-weight: 300; margin-bottom: 2.5rem; max-width: 600px; margin-left: auto; margin-right: auto; }

.banner-pagina { padding: 10rem 5% 4rem; background-color: var(--cinza-claro); text-align: center; }
.banner-pagina span { color: var(--cor-teal); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 3px; display: block; margin-bottom: 0.5rem; }
.banner-pagina h1 { font-size: 2.8rem; font-weight: 300; text-transform: uppercase; letter-spacing: 3px; color: var(--preto); }

.secao-catalogo { padding: 4rem 5% 6rem; }
.filtros-bar { display: flex; flex-direction: column; gap: 2rem; margin-bottom: 3rem; align-items: center; }

.busca-container { position: relative; width: 100%; max-width: 500px; }
.busca-container input {
    width: 100%; padding: 14px 20px 14px 45px; border: 1px solid #ddd; border-radius: 4px; font-size: 0.95rem; outline: none; transition: border-color 0.3s;
}
.busca-container input:focus { border-color: var(--cor-teal); }
.busca-container i { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: var(--cinza-medio); }

.categorias-filtros { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.btn-filtro {
    background: transparent; border: 1px solid #ddd; padding: 8px 20px; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; cursor: pointer; border-radius: 20px; transition: all 0.3s; color: var(--cinza-escuro);
}
.btn-filtro:hover, .btn-filtro.ativo { background-color: var(--cor-teal); color: var(--branco); border-color: var(--cor-teal); }

.info-resultado { text-align: center; font-size: 0.9rem; color: var(--cinza-medio); margin-bottom: 2.5rem; font-weight: 300; }

.produtos { padding: 6rem 5%; background-color: var(--cinza-claro); }
.grid-produtos, .grid-catalogo { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 2.5rem; }

.produto-card { background: var(--branco); overflow: hidden; transition: transform 0.4s ease, box-shadow 0.4s ease; border: 1px solid #eee; }
.produto-card:hover { transform: translateY(-8px); box-shadow: 0 10px 25px rgba(0,0,0,0.08); }
.produto-card img { width: 100%; height: 320px; object-fit: cover; transition: transform 0.6s ease; }
.produto-card:hover img { transform: scale(1.05); }
.produto-info { padding: 1.5rem; text-align: center; }
.produto-info h3 { font-size: 1.1rem; font-weight: 500; color: var(--preto); margin-bottom: 0.4rem; }
.produto-info span { display: block; font-size: 0.75rem; color: var(--cinza-medio); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 1.2rem; }
.produto-info a { display: inline-block; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; color: var(--cor-teal); border-bottom: 1px solid var(--cor-teal); padding-bottom: 2px; font-weight: 500; }

.breadcrumb { padding: 8rem 5% 2rem; font-size: 0.85rem; color: var(--cinza-medio); text-transform: uppercase; letter-spacing: 1px; }
.breadcrumb a:hover { color: var(--cor-teal); }

.produto-container { padding: 0 5% 6rem; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.galeria-box { display: flex; flex-direction: column; gap: 1.5rem; }
.imagem-principal { 
    width: 100%; 
    height: auto;
    aspect-ratio: 4 / 3; 
    object-fit: contain; 
    border-radius: 4px; 
}
.miniaturas { display: flex; gap: 1rem; }
.miniaturas img { width: 80px; height: 80px; object-fit: cover; cursor: pointer; border-radius: 4px; opacity: 0.6; transition: opacity 0.3s, border-color 0.3s; border: 2px solid transparent; }
.miniaturas img.ativa, .miniaturas img:hover { opacity: 1; border-color: var(--cor-teal); }

.info-box { display: flex; flex-direction: column; }
.categoria-tag { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 2px; color: var(--cor-teal); font-weight: 600; margin-bottom: 0.5rem; }
.titulo-produto { font-size: 2.5rem; font-weight: 400; color: var(--preto); margin-bottom: 1.5rem; line-height: 1.2; }
.descricao-produto { font-size: 1rem; line-height: 1.8; color: #555; font-weight: 300; margin-bottom: 2.5rem; }

.especificacoes-box { border-top: 1px solid #eee; padding-top: 2rem; margin-bottom: 2.5rem; }
.especificacoes-box h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 1rem; color: var(--preto); }
.tabela-specs { width: 100%; border-collapse: collapse; }
.tabela-specs tr { border-bottom: 1px solid var(--cinza-claro); }
.tabela-specs td { padding: 10px 0; font-size: 0.9rem; }
.tabela-specs td:first-child { font-weight: 500; color: var(--preto); width: 40%; }
.tabela-specs td:last-child { color: var(--cinza-medio); font-weight: 300; }

.btn-orcamento { display: inline-flex; align-items: center; justify-content: center; gap: 12px; background-color: var(--cor-teal); color: var(--branco); padding: 16px 35px; font-size: 0.9rem; text-transform: uppercase; letter-spacing: 2px; font-weight: 500; transition: background 0.3s; border-radius: 4px; }
.btn-orcamento:hover { background-color: #1f6f73; }

.relacionados { padding: 4rem 5% 6rem; background-color: var(--cinza-claro); }
.relacionados h2 { text-align: center; font-size: 1.8rem; font-weight: 400; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 3rem; }
.grid-relacionados { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }

footer { background-color: var(--preto); color: var(--branco); padding: 5rem 5% 2rem; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 3rem; margin-bottom: 4rem; }
.footer-col h4 { font-weight: 500; letter-spacing: 1px; margin-bottom: 1.5rem; text-transform: uppercase; color: var(--cor-teal); }
.footer-col p, .footer-col a { color: #aaa; font-size: 0.95rem; margin-bottom: 0.8rem; display: block; font-weight: 300; }
.footer-col a:hover { color: var(--branco); }
.copy { text-align: center; border-top: 1px solid #333; padding-top: 2rem; font-size: 0.8rem; color: #666; }

.whatsapp-float { position: fixed; bottom: 30px; right: 30px; background-color: #25d366; color: white; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2rem; box-shadow: 0 4px 10px rgba(0,0,0,0.3); z-index: 1000; transition: transform 0.3s; }
.whatsapp-float:hover { transform: scale(1.1); }

@media (max-width: 900px) {
    nav ul { display: none; }
    .hero-content h1 { font-size: 2.5rem; }
    .btn-prev, .btn-next { display: none; }
    .cta-arquitetos h2 { font-size: 1.8rem; }
    .banner-pagina h1 { font-size: 2rem; }
    .produto-container { grid-template-columns: 1fr; gap: 2rem; }
    .titulo-produto { font-size: 2rem; }
    .imagem-principal { height: 350px; }
}


.menu-mobile-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--preto);
    cursor: pointer;
    z-index: 1001;
    transition: color 0.3s;
}

.menu-mobile-btn:hover {
    color: var(--cor-teal);
}


@media (max-width: 900px) {
    .menu-mobile-btn {
        display: block;
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 300px;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.98);
        box-shadow: -5px 0 20px rgba(0,0,0,0.1);
        padding-top: 5rem;
        transition: right 0.4s ease;
        z-index: 1000;
    }

    nav.active {
        right: 0;
    }

    nav ul {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }

    nav a {
        font-size: 1.1rem;
    }
}

.div-btn {
    text-align: center;
    margin-top: 2rem;
}