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

body{
height:100vh;
display:flex;
justify-content:center;
align-items:center;
background: linear-gradient(135deg,#0f2027,#203a43,#2c5364);
color:white;
}

/* container utama */

.container{
text-align:center;
backdrop-filter: blur(10px);
background: rgba(255,255,255,0.05);
padding:50px 60px;
border-radius:20px;
box-shadow:0 20px 40px rgba(0,0,0,0.4);
}

/* judul */

h1{
font-size:40px;
margin-bottom:10px;
font-weight:600;
}

.subtitle{
font-size:18px;
margin-bottom:40px;
opacity:0.8;
}

/* menu */

.menu{
display:flex;
gap:25px;
justify-content:center;
flex-wrap:wrap;
}

.menu a{
text-decoration:none;
}

/* tombol menu */

.card{
width:240px;
height:90px;
padding:20px;
border-radius:15px;
transition:0.3s;
cursor:pointer;
color:white;
font-weight:500;
letter-spacing:0.5px;

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

/* warna tombol */

.logger{
background: linear-gradient(135deg,#00c6ff,#0072ff);
box-shadow:0 8px 20px rgba(0,114,255,0.4);
}

.upvc{
background: linear-gradient(135deg,#ff6a00,#ee0979);
box-shadow:0 8px 20px rgba(238,9,121,0.4);
}

/* hover effect */

.card:hover{
transform:translateY(-8px) scale(1.05);
box-shadow:0 15px 35px rgba(0,0,0,0.5);
}

.card h2{
font-size:18px;
}

/* footer */

.footer{
margin-top:40px;
font-size:13px;
opacity:0.6;
}