/* --- Reset Básico & Variáveis --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Open Sans', sans-serif; /* Fonte mais moderna */
}

:root {
    --primary-color: #003366; /* Azul escuro corporativo */
    --secondary-color: #f7a41d; /* Laranja/Amarelo para destaque (inspirado em segurança/construção) */
    --light-gray: #f4f4f4;
    --dark-gray: #333;
    --white: #ffffff;
    --text-color: #555;
}

body {
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden; /* Evitar scroll horizontal */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

h1, h2, h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

/* --- Header --- */
header {
    background-color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}

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

.logo img {
    max-height: 60px; /* Ajustar altura do logo */
}

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

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    color: var(--primary-color);
    font-weight: bold;
    padding: 5px 0;
    position: relative;
    transition: color 0.3s ease;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--secondary-color);
    transition: width 0.3s ease;
}

nav ul li a:hover::after {
    width: 100%;
}

nav ul li a.active {
    color: var(--secondary-color);
}

nav ul li a.active::after {
    width: 100%;
}

/* --- Menu Mobile (Hamburger) --- */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.menu-toggle span {
    height: 3px;
    width: 25px;
    background-color: var(--primary-color);
    margin-bottom: 5px;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* --- Hero Section (Imagem Principal) --- */
.hero {
    background: url('../images/trabalho_altura_lavagem_vidro_1.jpeg') no-repeat center center/cover; /* Imagem de fundo */
    height: 80vh; /* Altura maior */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    position: relative;
}

.hero::before { /* Overlay escuro para legibilidade */
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
}

.btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #e69500; /* Tom mais escuro do laranja */
    transform: translateY(-2px);
    color: var(--white);
}

/* --- Seções Gerais --- */
section {
    padding: 60px 0;
}

.section-bg {
    background-color: var(--light-gray);
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.2rem;
    color: var(--primary-color);
}

/* --- Sobre Nós --- */
.about-content {
    display: flex;
    gap: 30px;
    align-items: center;
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
    text-align: center;
}

.about-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* --- Serviços --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-item {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.12);
}

.service-item img {
    max-width: 100%;
    height: 200px; /* Altura fixa para imagens de serviço */
    object-fit: cover; /* Garante que a imagem cubra a área */
    border-radius: 5px;
    margin-bottom: 20px;
}

.service-item h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

/* --- Clientes --- */
.clients-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

.client-logo img {
    max-height: 60px;
    /* filter: grayscale(100%); */ /* Removido para exibir colorido */
    opacity: 1; /* Ajustado para opacidade total */
    transition: opacity 0.3s ease; /* Removida transição do filtro */
}

.client-logo img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* --- Diferenciais --- */
.differentials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

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

.differential-item i { /* Para ícones FontAwesome ou similar */
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.differential-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

/* --- Depoimentos --- */
.testimonial-item {
    background-color: var(--white);
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.08);
    border-left: 5px solid var(--secondary-color);
}

.testimonial-item p {
    font-style: italic;
    margin-bottom: 10px;
}

.testimonial-item span {
    font-weight: bold;
    color: var(--primary-color);
}

/* --- FAQ --- */
.faq-item {
    background-color: var(--white);
    margin-bottom: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.faq-question {
    padding: 15px 20px;
    font-weight: bold;
    cursor: pointer;
    position: relative;
    color: var(--primary-color);
}

.faq-question::after { /* Ícone +/- */
    content: '+';
    position: absolute;
    right: 20px;
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.faq-answer {
    padding: 0 20px 15px;
    display: none; /* Escondido por padrão */
    border-top: 1px solid var(--light-gray);
    margin-top: 10px;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

/* --- Contato --- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.contact-info h3, .contact-form h3 {
    margin-bottom: 20px;
}

.contact-info p {
    margin-bottom: 15px;
}

.contact-info i {
    margin-right: 10px;
    color: var(--secondary-color);
    width: 20px; /* Alinhamento */
    text-align: center;
}

.contact-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.contact-form button {
    width: 100%;
}

/* --- Footer --- */
footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 40px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-content h4 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.footer-content p,
.footer-content ul li {
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.footer-content ul {
    list-style: none;
}

.footer-content ul li a {
    color: var(--white);
}

.footer-content ul li a:hover {
    color: var(--secondary-color);
}

.social-icons a {
    color: var(--white);
    font-size: 1.5rem;
    margin-right: 15px;
    transition: color 0.3s ease;
}

.social-icons a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #555;
    font-size: 0.9rem;
}

/* --- Botão WhatsApp Flutuante --- */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366; /* Cor oficial do WhatsApp */
    color: var(--white);
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 6px rgba(0,0,0,0.3);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    color: var(--white);
}

.whatsapp-float i {
    margin-top: 0; /* Ajuste para centralizar ícone FontAwesome */
}

/* --- Responsividade --- */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    nav ul {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 80px; /* Altura do header */
        left: 0;
        background-color: var(--white);
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }

    nav ul.active {
        display: flex;
    }

    nav ul li {
        margin: 0;
        text-align: center;
    }

    nav ul li a {
        display: block;
        padding: 15px;
        border-bottom: 1px solid var(--light-gray);
    }

    nav ul li a::after {
        display: none; /* Remove sublinhado no mobile */
    }

    .hero {
        height: 60vh;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .about-content {
        flex-direction: column;
    }

    .footer-content {
        grid-template-columns: 1fr; /* Uma coluna no mobile */
        text-align: center;
    }

    .social-icons {
        text-align: center;
        margin-top: 15px;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 25px;
    }
}

/* --- Animações Sutis (Opcional) --- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.8s ease-out forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Adicionar classes .fade-in aos elementos que devem ter animação ao rolar a página (requer JS) */