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

/* BODY COM BACKGROUND DO DRAGÃO */
body {
    font-family: Arial;
    background: url('../img/bg.png') no-repeat center center fixed;
    background-size: cover;
    color: #fff;
}

/* OVERLAY ESCURO */
body::before {
    content: "";
    position: fixed;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: -1;
}

/* HEADER */
.header {
    text-align: center;
    padding: 30px;
}

/* LOGO */
.logo {
    max-width: 300px;
    margin-bottom: 10px;
}

/* MENU */
.menu a {
    margin: 10px;
    color: #ffcc00;
    text-decoration: none;
    font-weight: bold;
}

/* GRID */
.container {
    max-width: 1200px;
    margin: auto;
    padding: 20px;
}

/* CARDS */
.card {
    background: rgba(0,0,0,0.7);
    border: 1px solid #ffcc00;
    padding: 15px;
    margin: 10px;
    border-radius: 10px;
    text-align: center;
    width: 250px;
}

/* GRID FLEX */
.grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

/* BOTÃO */
.btn {
    display: inline-block;
    background: #25D366;
    color: #fff;
    padding: 10px;
    margin-top: 10px;
    text-decoration: none;
    border-radius: 5px;
}