html, body{
    margin:0;
    height:100%;
    font-family:Arial,sans-serif;
    color:#fff;
    background:linear-gradient(135deg,#0a192f,#172a45,#203a43);
    display:flex;
    align-items:center;
    justify-content:center;
    overflow:hidden;
}

/* ===== FLOATING ICONS ===== */
.floating-bg{
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
}
.floating-bg i{
    position:absolute;
    font-size:60px;
    opacity:0.35;
    color:#00e6ff;
    animation:float 7s ease-in-out infinite;
    filter: drop-shadow(0 0 12px rgba(0,230,255,.7));
}
.floating-bg i:nth-child(1){top:18%;left:22%;}
.floating-bg i:nth-child(2){top:45%;left:18%;animation-delay:1s;}
.floating-bg i:nth-child(3){top:70%;left:25%;animation-delay:2s;}
.floating-bg i:nth-child(4){top:25%;right:22%;animation-delay:1.5s;}
.floating-bg i:nth-child(5){top:60%;right:20%;animation-delay:2.5s;}

@keyframes float{
    0%{transform:translateY(0)}
    50%{transform:translateY(-25px)}
    100%{transform:translateY(0)}
}

/* ===== LOGIN CARD ===== */
.card{
    position:relative;
    z-index:5;
    background:rgba(0,0,0,.65);
    border-radius:16px;
    padding:35px 30px;
    width:100%;
    max-width:450px;
    max-height:90vh;
    overflow-y:auto;
    box-shadow:0 15px 35px rgba(0,0,0,.6);
    text-align:center;
}

/* Scrollbar */
.card::-webkit-scrollbar{width:6px}
.card::-webkit-scrollbar-thumb{background:#00e6ff;border-radius:10px}

.logo{
    background:#00e6ff;
    color:#0a192f;
    padding:10px 30px;
    border-radius:10px;
    font-size:28px;
    font-weight:bold;
    display:inline-block;
    margin-bottom:20px;
}

input{
    width:100%;
    background:rgba(255,255,255,.12);
    border:none;
    color:#fff;
    padding:15px;
    border-radius:8px;
    margin-bottom:15px;
}
input::placeholder{color:rgba(255,255,255,.6)}

.btn-login{
    background:#00e6ff;
    border:none;
    color:#000;
    padding:15px;
    border-radius:50px;
    font-weight:bold;
    width:100%;
    font-size:16px;
}

#alert{
    display:none;
    padding:15px;
    border-radius:8px;
    margin-bottom:20px;
    text-align:center;
}
p a{
    color:#00e6ff;
    text-decoration:none;
}