:root{
      --red:#ff1a1a;
      --dark:#0d0d0d;
      --card:#161616;
      --soft:#1f1f1f;
    }

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

html{scroll-behavior:smooth}

body{
    font-family:'Segoe UI', Arial, sans-serif;
    background:#0d0d0d;
    color:#fff;
    line-height:1.6;
}

/* NAV */
nav{
    position:fixed;
    top:0;
    width:100%;
    backdrop-filter: blur(10px);
    background:rgba(0,0,0,0.7);
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:15px 20px;
    border-bottom:1px solid rgba(255,0,0,0.3);
    z-index:1000;
}

nav h1{
    color: white;
    font-size:18px;
}

nav ul{
    list-style:none;
    display:flex;
    gap:20px;
}

nav a{
    text-decoration:none;
    color:#fff;
    font-weight:500;
    position: relative; /* 🔥 ESSENCIAL */
    display: inline-block; /* melhora o comportamento */
}

nav a::after{
    content:"";
    position:absolute;
    bottom:-6px;
    left:50%;
    width:0%;
    height:2px;
    background:var(--red);
    transition:0.3s;
    transform:translateX(-50%);
}

nav a:hover::after{
    width:100%;
}

nav a:hover::after{width:100%}

/* MENU MOBILE */
.menu-toggle{
    display:none;
    font-size:24px;
    cursor:pointer;
}

@media(max-width:768px){
    nav ul{
        position:absolute;
        top:60px;
        right:0;
        width:220px;
        background:#111;
        flex-direction:column;
        display:none;
        padding:15px;
    }

    nav ul.active{
        display:flex;
    }

    .menu-toggle{
        display:block;
    }
}

footer{
    text-align:center;
    padding:20px;
    background:#111;
    margin-top:40px;
    font-size:14px;
}