```css
/* =========================================
   RESET
========================================= */

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


html {
    scroll-behavior: smooth;
}


body {

    font-family: Arial, Helvetica, sans-serif;

    min-height: 100vh;

    color: #fff;

    /* FUNDO FIXO */

    background-image: url("bg-fundo.jpg");

    background-size: cover;

    background-position: center center;

    background-repeat: no-repeat;

    background-attachment: fixed;
}


/* =========================================
   MENU SUPERIOR
========================================= */

.menu-topo {

    position: fixed;

    top: 0;

    left: 0;

    width: 100%;

    height: 70px;

    z-index: 9999;

    background: rgba(0, 0, 0, 0.60);

    backdrop-filter: blur(10px);

    -webkit-backdrop-filter: blur(10px);

    border-bottom: 1px solid rgba(255,255,255,0.20);

    display: flex;

    align-items: center;
}


.menu-container {

    width: 100%;

    max-width: 1200px;

    margin: auto;

    padding: 0 20px;

    display: flex;

    align-items: center;

    justify-content: space-between;
}


/* =========================================
   LOGO
========================================= */

.logo {

    color: #fff;

    text-decoration: none;

    font-size: 24px;

    font-weight: bold;

    white-space: nowrap;
}


/* =========================================
   MENU
========================================= */

.menu-links {

    display: flex;

    align-items: center;

    gap: 8px;
}


.menu-links a {

    color: #fff;

    text-decoration: none;

    padding: 12px 16px;

    border-radius: 8px;

    transition: 0.3s;
}


.menu-links a:hover {

    background: rgba(255,255,255,0.20);
}


/* =========================================
   BOTÃO MOBILE
========================================= */

.menu-toggle {

    display: none;

    background: transparent;

    border: none;

    color: #fff;

    font-size: 30px;

    cursor: pointer;
}


/* =========================================
   CONTEÚDO PRINCIPAL
========================================= */

main {

    width: 100%;

    max-width: 1200px;

    margin: auto;

    padding: 110px 20px 40px;
}


/* =========================================
   BLOCOS TRANSPARENTES
========================================= */

.bloco {

    background: rgba(255,255,255,0.12);

    border: 1px solid rgba(255,255,255,0.20);

    border-radius: 18px;

    padding: 30px;

    backdrop-filter: blur(8px);

    -webkit-backdrop-filter: blur(8px);

    box-shadow:
        0 10px 30px rgba(0,0,0,0.25);

    margin-bottom: 25px;
}


.bloco h2 {

    margin-bottom: 15px;
}


.bloco p {

    line-height: 1.7;

    margin-bottom: 10px;
}


/* =========================================
   1/3 + 2/3
========================================= */

.linha-principal {

    display: grid;

    grid-template-columns: 1fr 2fr;

    gap: 25px;

    margin-bottom: 25px;
}


/* =========================================
   3 COLUNAS
========================================= */

.tres-colunas {

    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 25px;

    margin-bottom: 25px;
}


/* =========================================
   BOTÃO
========================================= */

.botao {

    display: inline-block;

    margin-top: 15px;

    padding: 12px 22px;

    background: rgba(255,255,255,0.20);

    color: #fff;

    text-decoration: none;

    border-radius: 8px;

    border: 1px solid rgba(255,255,255,0.30);

    transition: 0.3s;
}


.botao:hover {

    background: rgba(255,255,255,0.35);

    transform: translateY(-2px);
}


/* =========================================
   RODAPÉ
========================================= */

footer {

    width: 100%;

    background: rgba(0,0,0,0.70);

    backdrop-filter: blur(8px);

    -webkit-backdrop-filter: blur(8px);

    border-top:
        1px solid rgba(255,255,255,0.15);

    text-align: center;

    padding: 30px 20px;

    margin-top: 20px;
}


footer p {

    margin: 5px 0;

    color: rgba(255,255,255,0.85);
}


/* =========================================
   TABLET
========================================= */

@media (max-width: 800px) {

    .linha-principal {

        grid-template-columns: 1fr;
    }


    .tres-colunas {

        grid-template-columns: 1fr 1fr;
    }

}


/* =========================================
   CELULAR
========================================= */

@media (max-width: 600px) {

    .menu-topo {

        height: 65px;
    }


    .menu-container {

        padding: 0 15px;
    }


    .logo {

        font-size: 20px;
    }


    /* MOSTRA BOTÃO */

    .menu-toggle {

        display: block;
    }


    /* MENU MOBILE */

    .menu-links {

        position: absolute;

        top: 65px;

        left: 0;

        width: 100%;

        display: none;

        flex-direction: column;

        align-items: stretch;

        gap: 0;

        padding: 10px;

        background: rgba(0,0,0,0.90);

        backdrop-filter: blur(10px);
    }


    .menu-links.ativo {

        display: flex;
    }


    .menu-links a {

        text-align: center;

        padding: 14px;
    }


    main {

        padding: 90px 12px 30px;
    }


    .linha-principal {

        grid-template-columns: 1fr;

        gap: 0;
    }


    .tres-colunas {

        grid-template-columns: 1fr;

        gap: 0;
    }


    .bloco {

        padding: 22px;

        border-radius: 14px;

        margin-bottom: 18px;
    }

}
```