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

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f4f6f8;
    color: #333;
}

/* Cabeçalho */
header {
    background-color: #1f3c88;
    color: white;
    padding: 20px;
}

header h1 {
    text-align: center;
    margin-bottom: 15px;
}

/* Menu */
.menu {
    list-style: none;
    display: flex;
    justify-content: center;
    background-color: #162d63;
}

.menu li {
    border-right: 1px solid #ffffff33;
}

.menu li:last-child {
    border-right: none;
}

.menu a {
    display: block;
    padding: 15px 20px;
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.menu a:hover {
    background-color: #f0a500;
    color: #000;
}

/* Área central */
main {
    max-width: 900px;
    margin: 30px auto;
    padding: 0 20px;
}

/* Conteúdos */
.content {
    display: none;
    background: white;
    padding: 25px;
    border-radius: 5px;
}

/* Mostrar secção clicada */
.content:target {
    display: block;
}

/* Conteúdo inicial */
.default {
    display: block;
}

/* Títulos */
.content h2 {
    margin-bottom: 15px;
    color: #1f3c88;
}

/* Listas */
.content ul {
    margin-left: 20px;
}

.content li {
    margin-bottom: 8px;
}

/* Rodapé */
footer {
    text-align: center;
    padding: 15px;
    background-color: #162d63;
    color: white;
    margin-top: 30px;
}