*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Poppins',sans-serif;
}

:root{
    --bg:#050816;
    --bg2:#0d1324;
    --card:#121b33;
    --green:#39ff14;
    --green2:#00ff99;
    --text:#ffffff;
    --shadow:0 0 15px rgba(57,255,20,.5);
}

html{
    scroll-behavior:smooth;
}

body{
    background:linear-gradient(180deg,var(--bg),var(--bg2));
    color:var(--text);
    overflow-x:hidden;
}

/* PARTÍCULAS */

#particles{
    position:fixed;
    inset:0;
    z-index:-1;
}

/* BANNER */

.banner{

    width:100%;
    height:500px;

    background:
    linear-gradient(rgba(0,0,0,.45),rgba(0,0,0,.65)),
    url("banner.png");

    background-size:cover;
    background-position:center;
    background-repeat:no-repeat;

    display:flex;
    justify-content:center;
    align-items:center;

    text-align:center;

    position:relative;

}

.banner-content{

    z-index:2;

}

.banner h1{

    font-size:clamp(55px,8vw,95px);

    color:white;

    text-shadow:
    0 0 15px var(--green),
    0 0 35px var(--green);

}

.banner p{

    margin-top:20px;

    font-size:22px;

}

.btn{

    display:inline-block;

    margin-top:30px;

    padding:16px 35px;

    border-radius:50px;

    background:var(--green);

    color:black;

    text-decoration:none;

    font-weight:bold;

    transition:.3s;

    box-shadow:var(--shadow);

}

.btn:hover{

    transform:scale(1.08);

}

/* MENU */

nav{

    position:sticky;

    top:0;

    display:flex;

    justify-content:center;

    gap:15px;

    padding:15px;

    background:rgba(0,0,0,.6);

    backdrop-filter:blur(15px);

    z-index:1000;

}

.menu{

    border:none;

    padding:12px 22px;

    border-radius:30px;

    cursor:pointer;

    background:#18223d;

    color:white;

    transition:.3s;

}

.menu:hover,
.menu.active{

    background:var(--green);

    color:black;

    box-shadow:var(--shadow);

}

/* CONTEÚDO */

main{

    width:min(1200px,95%);

    margin:auto;

    padding:40px 0;

}

.page{

    display:none;

}

.page.active{

    display:block;

    animation:fade .5s;

}

@keyframes fade{

    from{

        opacity:0;
        transform:translateY(15px);

    }

    to{

        opacity:1;
        transform:translateY(0);

    }

}

.cards{

    display:grid;

    grid-template-columns:
    repeat(auto-fit,minmax(260px,1fr));

    gap:20px;

    margin-top:25px;

}

.card{

    background:var(--card);

    padding:25px;

    border-radius:20px;

    transition:.3s;

    border:1px solid rgba(255,255,255,.05);

}

.card:hover{

    transform:translateY(-8px);

    box-shadow:var(--shadow);

}

.card h3{

    margin-bottom:15px;

}

.card span{

    font-size:45px;

    color:var(--green);

    font-weight:bold;

}

.hero-card{

    background:var(--card);

    padding:35px;

    border-radius:25px;

    box-shadow:0 10px 30px rgba(0,0,0,.4);

}