/* RESET E CONFIGURAÇÕES GERAIS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-family: 'Open Sans', sans-serif;
    color: #333;
    line-height: 1.6;
}

body {
    background-color: #fff;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.bg-light {
    background-color: #f8f9fa;
}

.text-center {
    text-align: center;
}

.subtitle {
    max-width: 700px;
    margin: 10px auto 40px auto;
    color: #666;
}

.lead {
    font-size: 1.2rem;
    font-weight: 600;
    max-width: 800px;
    margin: 0 auto 20px auto;
    color: #1a365d; /* Azul Industrial */
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
}

h2 {
    font-size: 2rem;
    color: #1a365d;
    margin-bottom: 20px;
}

img {
    max-width: 100%;
    height: auto;
}

/* NAVBAR (RESPONSIVA) */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 50px;
    object-fit: contain;
}

.nav a {
    text-decoration: none;
    color: #4a5568;
    font-weight: 600;
    margin-left: 25px;
    transition: color 0.3s;
}

.nav a:hover {
    color: #9b1c31; /* Vinho Logo */
}

.nav .btn-nav {
    background-color: #9b1c31;
    color: #fff;
    padding: 10px 20px;
    border-radius: 4px;
}

.nav .btn-nav:hover {
    background-color: #721422;
    color: #fff;
}

/* HERO BANNER */
.hero {
    background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(26, 54, 93, 0.95)), url('fundo-saneamento.jpg') no-repeat center center/cover;
    color: #fff;
    padding: 120px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn-main {
    display: inline-block;
    background-color: #9b1c31;
    color: #fff;
    text-decoration: none;
    padding: 15px 35px;
    font-weight: bold;
    border-radius: 4px;
    transition: background 0.3s;
}

.btn-main:hover {
    background-color: #721422;
}

/* SOLUÇÕES (GRID) */
.grid-solucoes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 40px;
}

.card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}

.card-img-group {
    display: flex;
    justify-content: center;
    gap: 15px;
    height: 180px;
    margin-bottom: 20px;
}

.card-img-group img {
    height: 100%;
    object-fit: contain;
}

.card-img-single {
    height: 180px;
    margin-bottom: 20px;
}

.card-img-single img {
    height: 100%;
    object-fit: contain;
}

.card h3 {
    color: #1a365d;
    margin-bottom: 15px;
}

/* SEGMENTOS ATENDIDOS */
.segmentos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.segmento-item {
    background: #fff;
    border-left: 4px solid #9b1c31;
    padding: 15px;
    font-weight: 600;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

/* CONTATO */
.contato-section {
    background-color: #1a365d;
    color: #fff;
}

.contato-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.contato-info h2 {
    color: #fff;
}

.email-box {
    margin-top: 30px;
    background: rgba(255,255,255,0.1);
    padding: 20px;
    border-radius: 4px;
}

.email-box span {
    display: block;
    font-size: 0.9rem;
    color: #cbd5e0;
}

.email-box a {
    color: #fff;
    font-size: 1.4rem;
    font-weight: bold;
    text-decoration: none;
}

.contato-form {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #4a5568;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #cbd5e0;
    border-radius: 4px;
    font-family: inherit;
}

.btn-submit {
    width: 100%;
    background-color: #9b1c31;
    color: #fff;
    border: none;
    padding: 15px;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-submit:hover {
    background-color: #721422;
}

/* RODAPÉ */
.footer {
    background: #111;
    color: #ccc;
    padding: 30px 0;
}

/* AUXILIARES */
.mt-2 { margin-top: 20px; }
.font-semibold { font-weight: 600; }

/* AJUSTES PARA MOBILE (RESPONSIVIDADE COMPLETA) */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        height: auto;
        padding: 15px 0;
    }
    
    .nav {
        margin-top: 15px;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .nav a {
        margin-left: 0;
        padding: 5px 10px;
        font-size: 0.9rem;
    }
    
    .nav .btn-nav {
        padding: 5px 15px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .grid-solucoes, .contato-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .section {
        padding: 50px 0;
    }
}