menu não parece | CSS: dispondo elementos com Flexbox e Grid

<!DOCTYPE html>
<html lang="pt-br">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>hzc | HOME</title>
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600;700&display=swap">
    <link rel="stylesheet" href="assets/css/reset.css">
    <link rel="stylesheet" href="assets/css/estilos.css">
</head>
<body>
    <header class="cabecalho menu-lateral--ativo">
        <button class="cabecalho__menu" aria-label="menu"><i></i></button>
        <img src="assets/img/logo.svg" alt="logotipo da hzc" class="cabecalho__logo">
        <button class="cabecalho__notificacao" aria-label="notificação"><i></i></button>
    </header>

    <nav class="menu-lateral">
        <img src="assets/img/logo.svg" alt="logotipoda hzc" class="menu-lateral__logo">
        <a href="#" class="menu-lateral__link menu-lateral__link--inicio menu-lateral--ativo" >inicio</a>
        <a href="#" class="menu-lateral__link menu-lateral__link--video">videos</a>
        <a href="#" class="menu-lateral__link menu-lateral__link--picos">picos</a>
        <a href="#" class="menu-lateral__link menu-lateral__link--integrantes">integrantes</a>
        <a href="#" class="menu-lateral__link menu-lateral__link--camisas">camisas</a>
        <a href="#" class="menu-lateral__link menu-lateral__link--pintura">pinturas</a>
    </nav>
    <script src="index.js"></script>
</body>

@font-face {
    font-family: 'icones';
    src: url(../font/icones.ttf);
}
body{
    background-color: #1D232A;
    font-family: 'Open Sans', 'icones' ,sans-serif;
    color: #FFFFFF
}

.cabecalho{
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #15191c;
    padding: 8px 16px;
    box-sizing: 0px 4px 4px rgba(0,0,0,0.16);
}

.cabecalho__menu i::before{
    content: "\e904";
    font-size: 24px;
}
.cabecalho__notificacao i::before{
    content: "\e906";
    font-size: 24px;
}

.cabecalho__logo{
    width: 40px;
}

.menu-lateral{
    display: flex; 
    flex-direction: column;
    background-color:#15191C ;
    width:75vw ;
    height: 100vh;

    position: absolute;
    left: -100vw ;
}

.menu-lateral--ativo{
 left: 0 ;

 ;
}
.menu-lateral__logo {
    width:118px ;
    align-self: center ;
    padding: 16px;
}
.menu-lateral__link{
    height: 64px;
    color:#95999C;
    padding-left: 64px;
    display: flex;
    align-items: center;
}

.menu-lateral__link--ativo{
    color: #FFFFFF;
    padding-left: 56px;
    border-left: 8px solid #FFFFFF ;
}
.menu-lateral__link::before{
    content: "";
    width:24px;
    height:24px;
    font-size:24px;
    position: absolute;
    left: 24px;
}

.menu-lateral__link--inicio::before{
    content:"\e902" ;
}

.menu-lateral__link--video::before{
    content:"\e90e" ;

}

.menu-lateral__link--picos::before{
    content:"\e909 ";

}

.menu-lateral__link--integrantes::before{
    content:"\e903";

}

.menu-lateral__link--camisas::before{
    content:"\e900" ;

}
.menu-lateral__link--pintura::before{
    content: "\e90a" ;

}

const botaoMenu = document.querySelector('.cabecalho__menu')
const Menu = document.querySelector('.menu-lateral')

botaoMenu.addEventListener('click', () => {
    menu.classList.toggle('menu-lateral--ativo')
}