/* --- Reset Básico e Variáveis --- */
:root {
    --primary-color: #0056b3; /* Azul profissional para botões/links */
    --secondary-color: #333; /* Texto principal escuro */
    --background-color: #ffffff;
    --light-bg: #f9f9f9; /* Fundo cinza claro para seções alternadas */
    --text-color-light: #fff;
    --font-stack: 'Roboto', sans-serif;
    --header-font: 'Playfair Display', serif;
}

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

body {
    font-family: var(--font-stack);
    line-height: 1.6;
    color: var(--secondary-color);
    background-color: var(--background-color);
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: var(--primary-color);
}

ul {
    list-style: none;
}

h1, h2, h3 {
    font-family: var(--header-font);
    margin-bottom: 15px;
    color: var(--primary-color);
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 40px;
}

section {
    padding: 60px 0;
}

/* --- Cabeçalho e Navegação --- */
header {
    background: var(--background-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

nav ul {
    display: flex;
}

nav ul li a {
    color: var(--secondary-color);
    padding: 10px 15px;
    font-weight: 400;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: var(--primary-color);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
}

/* --- Seção Principal (Hero) --- */
.hero {
    background: var(--primary-color);
    color: var(--text-color-light);
    text-align: center;
    padding: 100px 0;
}

.hero-content h1 {
    color: var(--text-color-light);
    font-size: 3rem;
    margin-top: 10px;
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.profile-pic {
    border-radius: 50%;
    width: 180px;
    height: 180px;
    object-fit: cover;
    border: 5px solid var(--text-color-light);
}

.cta-button {
    background: var(--secondary-color);
    color: var(--text-color-light);
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 700;
    display: inline-block;
    margin-top: 20px;
    transition: background 0.3s;
}

.cta-button:hover {
    background: #444;
}

/* --- Seção Sobre Mim --- */
.about {
    background: var(--light-bg);
}

/* --- Seção Serviços --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: center;
}

.service-item {
    background: var(--background-color);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.service-item:hover {
    transform: translateY(-5px);
}

/* --- Seção Livros --- */
.books {
    background: var(--light-bg);
}

.book-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.book-item {
    text-align: center;
    max-width: 200px;
}

.book-item img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 15px;
}

.book-item a {
    display: block;
    margin-top: 10px;
    font-weight: bold;
}

/* --- Seção Mídia (Vídeo) --- */
.media p {
    text-align: center;
    margin-bottom: 20px;
}

.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* Proporção 16:9 */
    height: 0;
    margin-bottom: 30px;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 8px;
}

/* --- Seção Contato --- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-family: var(--font-stack);
}

.contact-form button {
    width: 100%;
    border: none;
    cursor: pointer;
}

/* --- Rodapé --- */
footer {
    background: var(--secondary-color);
    color: var(--text-color-light);
    text-align: center;
    padding: 20px 0;
    font-size: 0.9rem;
}

/* --- Responsividade (Mobile) --- */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    nav ul {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 60px; /* Altura do header */
        left: 0;
        background: var(--background-color);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
    
    nav ul.active {
        display: flex;
    }

    nav ul li a {
        padding: 15px 20px;
        display: block;
        border-bottom: 1px solid var(--light-bg);
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}