/* --- CONFIGURAÇÕES GERAIS --- */
* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
    font-family: 'Segoe UI', sans-serif; 
}
body { 
    background-color: #ffffff; 
}

/* --- CABEÇALHO (TOPO) --- */
header { 
    position: fixed; 
    top: 0; 
    width: 100%; 
    z-index: 1000; 
    padding: 10px 5%; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    background-color: #000a1a; 
    height: 55px; 
}
.logo { 
    color: #D4AF37 !important; 
    font-size: 24px; 
    font-weight: bold; 
    text-transform: uppercase; 
    text-decoration: none; 
}
.nav-menu a { 
    color: #D4AF37; 
    text-decoration: none; 
    margin-left: 20px; 
    font-weight: bold; 
    font-size: 0.9rem; 
    cursor: pointer; 
}

/* --- BANNER PRINCIPAL (HERO) --- */
.hero-slider { 
    position: relative; 
    width: 100%; 
    height: 100vh; 
    background: #000; 
    overflow: hidden;
}
.slide { 
    position: absolute; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    opacity: 0; 
    visibility: hidden;
    transition: opacity 1s ease-in-out, visibility 1s ease-in-out; 
    background-size: cover; 
    background-position: center;
    background-repeat: no-repeat;
}
.slide.active { 
    opacity: 1; 
    visibility: visible;
}
.hero-content { 
    position: absolute; 
    top: 55%; 
    left: 50%; 
    transform: translate(-50%, -50%); 
    color: #fff; 
    text-align: center; 
    width: 90%; 
    z-index: 10;
}

/* --- SEÇÃO DO CARROSSEL --- */
#obras { 
    padding: 100px 0; 
    background-color: #ffffff;
}
.carousel-container { 
    position: relative; 
    width: 80%; 
    margin: 0 auto; 
}
.carousel-track-container {
    overflow: hidden;
    width: 100%;
    padding: 20px 0; 
}
.carousel-track { 
    display: flex; 
    transition: transform 0.5s ease; 
    gap: 20px; 
}

/* Imagens com efeito de transição suave preparado */
.carousel-track img { 
    width: calc(33.333% - 14px); 
    flex-shrink: 0; 
    height: 250px; 
    object-fit: cover; 
    border-radius: 8px; 
    cursor: pointer;
    transition: transform 0.4s ease, box-shadow 0.4s ease; 
}

/* Efeito de Destaque / Charme no Hover */
.carousel-track img:hover {
    transform: scale(1.04); 
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2); 
    z-index: 2; 
}

/* --- ESTILIZAÇÃO DAS SETAS AZUL ACINZENTADO (MENORES) --- */
.arrow { 
    position: absolute; 
    top: 50%; 
    transform: translateY(-50%); 
    background: none; 
    color: #546e7a; 
    border: none; 
    padding: 5px; 
    cursor: pointer; 
    z-index: 10; 
    font-size: 32px; 
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease, transform 0.2s ease;
}
.arrow:hover {
    color: #37474f; 
    transform: translateY(-50%) scale(1.1); 
}
.left { 
    left: -40px; 
} 
.right { 
    right: -40px; 
}

/* --- SEÇÃO DE CONTATO --- */
.contact-section { 
    padding: 60px 20px; 
    background-color: #f4f4f9; 
    display: block !important;
}
.contact-container { 
    max-width: 600px; 
    margin: 0 auto; 
    padding: 40px; 
    background: #ffffff; 
    border-radius: 10px; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.1); 
}
.contact-container h2 {
    text-align: center;
    margin-bottom: 5px;
    color: #000a1a;
}
.subtitle {
    text-align: center;
    margin-bottom: 25px;
    color: #666;
}
.form-group { 
    margin-bottom: 15px; 
    text-align: left; 
}
.form-group label { 
    display: block; 
    margin-bottom: 5px; 
    font-weight: 600; 
    font-size: 0.85rem; 
    color: #444; 
}
.form-row { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 15px; 
}
input, textarea { 
    width: 100%; 
    padding: 12px; 
    border: 1px solid #ddd; 
    border-radius: 5px; 
    background-color: #fcfcfc; 
    color: #333;
}
.btn-submit { 
    width: 100%; 
    padding: 12px; 
    background: #000a1a; 
    color: #D4AF37; 
    border: none; 
    border-radius: 5px; 
    font-weight: bold; 
    cursor: pointer; 
}
.btn-submit:hover {
    background: #001a40;
}
.whatsapp-box { 
    margin-top: 25px; 
    padding-top: 20px; 
    border-top: 1px solid #eee; 
    text-align: center; 
}
.whatsapp-box p {
    margin-bottom: 15px;
    color: #333;
}
.btn-whatsapp { 
    display: inline-block; 
    background: #25D366; 
    color: white; 
    padding: 10px 20px; 
    text-decoration: none; 
    font-weight: bold; 
    border-radius: 5px; 
}
.btn-whatsapp:hover {
    background: #1ebe57;
}

/* RESPONSIVIDADE */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    .carousel-container { 
        width: 75%; 
    }
    .carousel-track img {
        width: 100%; 
    }
    .arrow {
        font-size: 26px;
    }
    .left { left: -30px; }
    .right { right: -30px; }
}