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

body{
    min-height:100vh;
    background:
        radial-gradient(circle at top,#0f2027,#000 70%);
    display:flex;
    justify-content:center;
    align-items:center;
    color:#fff;
    overflow:hidden;
}

/* ===== ANIMATED GRID BACKGROUND ===== */
body::before{
    content:"";
    position:absolute;
    inset:0;
    background:
        linear-gradient(rgba(0,255,174,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,255,174,0.05) 1px, transparent 1px);
    background-size:40px 40px;
    animation:gridMove 18s linear infinite;
    z-index:-1;
}

@keyframes gridMove{
    from{background-position:0 0;}
    to{background-position:40px 40px;}
}

/* ===== LOGIN CARD ===== */
form{
    width:100%;
    max-width:420px;
    padding:28px;
    border-radius:28px;
    background:rgba(0,0,0,0.6);
    border:1px solid rgba(0,255,174,0.35);
    box-shadow:
        0 0 60px rgba(0,255,174,0.45),
        inset 0 0 30px rgba(0,255,174,0.12);
    backdrop-filter:blur(18px);
    display:flex;
    flex-direction:column;
    gap:18px;
}

/* ===== TITLE ===== */
form::before{
    content:"SMART HOME ACCESS";
    text-align:center;
    font-size:20px;
    letter-spacing:4px;
    margin-bottom:8px;
    color:#00ffae;
    text-shadow:
        0 0 18px #00ffae,
        0 0 40px rgba(0,255,174,0.8);
}

/* ===== INPUTS ===== */
.inp{
    width:100%;
    padding:16px 18px;
    border-radius:18px;
    background:
        linear-gradient(145deg,#050505,#141414);
    border:1px solid rgba(255,255,255,0.08);
    color:#fff;
    font-size:16px;
    outline:none;
    transition:0.3s;
    box-shadow:
        inset 0 0 18px rgba(0,0,0,0.9);
}

.inp::placeholder{
    color:#888;
    letter-spacing:1px;
}

.inp:focus{
    border-color:#00ffae;
    box-shadow:
        0 0 22px rgba(0,255,174,0.9),
        inset 0 0 15px rgba(0,255,174,0.35);
}

/* ===== LOGIN BUTTON ===== */
button.inp{
    cursor:pointer;
    background:
        linear-gradient(135deg,#00ffae,#00c9ff);
    color:#000;
    font-weight:bold;
    letter-spacing:2px;
    text-transform:uppercase;
    box-shadow:
        0 0 35px rgba(0,255,174,0.9);
    transition:0.35s;
}

button.inp:hover{
    transform:scale(1.05);
    box-shadow:
        0 0 55px rgba(0,255,174,1);
}

button.inp:active{
    transform:scale(0.97);
}

/* ===== MESSAGE ===== */
#msg{
    position:fixed;
    top:20px;
    left:50%;
    transform:translateX(-50%);
    padding:14px 22px;
    border-radius:16px;
    font-size:15px;
    letter-spacing:1px;
    z-index:10;
    box-shadow:0 0 30px rgba(0,0,0,0.7);
}

/* ===================== */
/* 📱 MOBILE GOD MODE */
/* ===================== */

@media(max-width:600px){

    form{
        max-width:92%;
        padding:32px;
        gap:22px;
    }

    form::before{
        font-size:22px;
    }

    .inp{
        padding:20px;
        font-size:18px;
    }

    button.inp{
        font-size:18px;
        padding:22px;
    }

    #msg{
        font-size:17px;
    }
}