/* --- Variáveis de Cor --- */
:root {
    --cor-primaria: #007bff;
    --cor-secundaria: #343a40; 
    --cor-fundo: #f8f9fa;     
    --cor-texto: #333;
    --cor-branca: #ffffff;
}

/* --- Reset Básico --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: var(--cor-fundo);
    color: var(--cor-texto);
    line-height: 1.6;
}

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

/* --- Cabeçalho --- */
header {
    background-color: var(--cor-branca);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

header .logo {
    color: var(--cor-primaria);
    font-size: 1.8rem;
}

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

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

header nav a {
    text-decoration: none;
    color: var(--cor-secundaria);
    font-weight: bold;
    transition: color 0.3s;
}

header nav a:hover {
    color: var(--cor-primaria);
}

/* --- Seções Gerais --- */
section {
    padding: 20px 0;
    margin-top: 20px;
}

section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5rem;
    color: var(--cor-secundaria);
}

/* --- Seção Hero --- */
.hero {
    background-color: var(--cor-secundaria);
    color: var(--cor-branca);
    text-align: center;
    padding: 120px 0;
}

.hero h2 {
    font-size: 3rem;
    color: var(--cor-branca);
}

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

/* --- Botões --- */
.btn {
    background-color: var(--cor-primaria);
    color: var(--cor-branca);
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #0056b3; /* Um tom mais escuro de azul */
}

.btn-outline {
    background-color: transparent;
    color: var(--cor-primaria);
    border: 2px solid var(--cor-primaria);
    padding: 10px 23px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
}

.btn-outline:hover {
    background-color: var(--cor-primaria);
    color: var(--cor-branca);
}


/* --- Sobre Mim --- */
#sobre .container {
    max-width: 800px;
    text-align: center;
}

.habilidades {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.habilidades span {
    background-color: var(--cor-primaria);
    color: var(--cor-branca);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
}

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

.projeto {
    background-color: var(--cor-branca);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    padding: 20px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.projeto:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

.projeto img {
    max-width: 100%;
    border-radius: 5px;
    margin-bottom: 15px;
}

.projeto h3 {
    margin-bottom: 10px;
    color: var(--cor-secundaria);
}

.links-projeto {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

/* --- Contato --- */
#contato {
    background-color: var(--cor-secundaria);
    color: var(--cor-branca);
    text-align: center;
}

#contato h2, #contato a {
    color: var(--cor-branca);
}

#contato .email a {
    text-decoration: underline;
    font-weight: bold;
}

.redes-sociais {
    margin-top: 20px;
}

.redes-sociais a {
    margin: 0 15px;
    font-size: 1.1rem;
    text-decoration: none;
    transition: color 0.3s;
}

.redes-sociais a:hover {
    color: var(--cor-primaria);
}

/* --- Rodapé --- */
footer {
    background-color: #333;
    color: #ccc;
    text-align: center;
    padding: 20px 0;
}

/* --- Responsividade --- */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }

    header nav {
        margin-top: 15px;
    }

    header nav ul li {
        margin: 0 10px;
    }

    section {
        padding: 60px 0;
        margin-top: 100px;
    }

    .hero h2 {
        font-size: 2.5rem;
    }
}