/* Variáveis e Reset Básico */
:root {
    --primary-color: #005691; /* Azul corporativo */
    --secondary-color: #00b4d8; /* Azul claro/destaque */
    --text-dark: #333;
    --text-light: #f4f4f4;
    --background-light: #ffffff;
    --background-dark: #f0f0f0;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background-light);
}

.container {
    width: 80%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px 0;
}

/* --- Cabeçalho e Navegação --- */
header {
    background: var(--primary-color);
    color: var(--text-light);
    padding: 10px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

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

header nav ul li a {
    color: var(--text-light);
    text-decoration: none;
    padding: 10px 15px;
    display: block;
    transition: background-color 0.3s;
}

header nav ul li a:hover {
    background-color: #00457a;
}

/* --- Botões (Gerais) --- */
.btn {
    display: inline-block;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 700;
    transition: background-color 0.3s;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn.primary {
    background-color: var(--secondary-color);
    color: var(--text-dark);
}

.btn.primary:hover {
    background-color: #00a4c8;
}

.btn.secondary {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.btn.secondary:hover {
    background-color: #00457a;
}

/* --- Seção Principal (Hero) --- */
.hero {
    background: url('placeholder-background.jpg') no-repeat center center/cover; /* Substitua pela sua imagem */
    color: var(--text-light);
    text-align: center;
    padding: 100px 0;
    background-color: var(--primary-color); /* Fallback */
}

.hero h2 {
    font-size: 3em;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2em;
    margin-bottom: 30px;
}

/* --- Seção de Serviços --- */
.servicos {
    padding: 60px 0;
    text-align: center;
    background-color: var(--background-dark);
}

.servicos h3 {
    margin-bottom: 40px;
    font-size: 2em;
    color: var(--primary-color);
}

.servico-grid {
    display: flex;
    justify-content: space-around;
    gap: 20px;
    flex-wrap: wrap;
}

.card {
    background-color: var(--background-light);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    flex: 1;
    min-width: 250px;
    text-align: left;
}

.card h4 {
    color: var(--secondary-color);
    margin-bottom: 15px;
}

/* --- Seção de Contato --- */
.contato {
    padding: 60px 0;
    background-color: var(--background-light);
    text-align: center;
}

.contato h3 {
    margin-bottom: 20px;
    font-size: 2em;
    color: var(--primary-color);
}

#contact-form {
    max-width: 500px;
    margin: 20px auto 0;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#contact-form input[type="text"],
#contact-form input[type="email"],
#contact-form textarea {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1em;
    width: 100%;
}

/* --- Rodapé --- */
footer {
    background: var(--text-dark);
    color: var(--background-dark);
    text-align: center;
    padding: 20px 0;
}