/* --- Reset Básico & Variáveis --- */
:root {
    --cor-primaria: #0a2ff1; /* Azul vibrante */
    --cor-secundaria: #04146c; /* Azul escuro */
    --cor-fundo: #f4f7fc;
    --cor-texto: #333;
    --cor-branca: #ffffff;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--cor-fundo);
    color: var(--cor-texto);
    line-height: 1.6;
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

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

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

.logo {
    color: var(--cor-primaria);
    font-size: 1.5rem;
}

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

header nav ul li {
    margin-left: 20px;
}

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

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

/* --- Seções Principais --- */
main {
    padding-top: 80px; /* Espaçamento para o cabeçalho fixo */
}

section {
    padding: 60px 0;
}

section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.2rem;
    color: var(--cor-secundaria);
}

/* --- Seção Hero --- */
#hero {
    background: linear-gradient(rgba(10, 47, 241, 0.7), rgba(4, 20, 108, 0.7)), url('https://via.placeholder.com/1200x800') no-repeat center center/cover;
    color: var(--cor-branca);
    text-align: center;
    padding: 100px 0;
}

.hero-text h2 {
    font-size: 3rem;
    margin-bottom: 10px;
}

.hero-text p {
    font-size: 1.5rem;
    margin-bottom: 30px;
}

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

.btn:hover {
    background-color: var(--cor-secundaria);
}

/* --- Seção Sobre --- */
.sobre-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.profile-pic {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--cor-primaria);
}

/* --- Seção Projetos --- */
#projetos {
    background-color: var(--cor-branca);
}

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

.card-projeto {
    background: var(--cor-fundo);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-projeto:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.1);
}

.card-projeto h3 {
    color: var(--cor-primaria);
    margin-bottom: 15px;
}

.card-projeto a {
    display: inline-block;
    margin-top: 20px;
    text-decoration: none;
    color: var(--cor-secundaria);
    font-weight: bold;
}

.card-projeto a:hover {
    text-decoration: underline;
}


/* --- Seção Contato --- */
#contato {
    text-align: center;
}

#contato p {
    max-width: 600px;
    margin: 0 auto 30px auto;
}

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

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

    header nav {
        margin-top: 15px;
    }

    main {
        padding-top: 120px;
    }

    .hero-text h2 {
        font-size: 2.2rem;
    }

    .hero-text p {
        font-size: 1.2rem;
    }

    .sobre-content {
        flex-direction: column;
        text-align: center;
    }
}