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

body{
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    background:url('Background.png') no-repeat center center fixed;
    background-size:cover;
}

.container{
    width:500px;
    background:rgba(17,17,17,0.9);
    padding:35px;
    border-radius:18px;
    box-shadow:0 10px 25px rgba(0,0,0,0.3);
    backdrop-filter:blur(5px);
}

h1{
    text-align:center;
    color:white;
    font-size:28px;
    margin-bottom:30px;
}

label{
    display:block;
    color:white;
    font-size:16px;
    margin-bottom:8px;
    margin-top:18px;
}

input,
textarea{
    width:100%;
    padding:12px;
    border:none;
    border-radius:8px;
    background:white;
    font-size:16px;
}

textarea{
    height:45px;
    resize:none;
}

.button-group{
    display:flex;
    gap:10px;
    margin-top:25px;
}

.button-group button{
    flex:1;
    padding:12px;
    border:none;
    border-radius:8px;
    color:white;
    font-size:18px;
    cursor:pointer;
}

.back-btn{
    background:#555;
}

.back-btn:hover{
    background:#444;
}

.send-btn{
    background:#4CAF50;
}

.send-btn:hover{
    background:#45a049;
}


/* =================================
   SEND BUTTON DISABLED
================================= */

.send-btn:disabled{
    opacity:0.7;
    cursor:not-allowed;
}

.send-btn:disabled:hover{
    background:#4CAF50;
}


/* =================================
   SUCCESS POPUP
================================= */

.success-overlay{
    position:fixed;
    inset:0;

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

    background:rgba(0,0,0,0.55);

    opacity:0;
    visibility:hidden;

    transition:opacity 0.3s ease,
               visibility 0.3s ease;

    z-index:99999;
}


/* Popup visible */

.success-overlay.show{
    opacity:1;
    visibility:visible;
}


/* =================================
   SUCCESS BOX
================================= */

.success-box{
    width:360px;
    max-width:90%;

    padding:30px 25px;

    background:#ffffff;

    border-radius:16px;

    text-align:center;

    box-shadow:0 20px 60px rgba(0,0,0,0.35);

    transform:scale(0.8);

    transition:transform 0.3s ease;
}


/* Popup animation */

.success-overlay.show .success-box{
    transform:scale(1);
}


/* =================================
   SUCCESS ICON
================================= */

.success-icon{
    width:60px;
    height:60px;

    margin:0 auto 15px;

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

    background:#4CAF50;

    color:white;

    border-radius:50%;

    font-size:32px;
    font-weight:bold;
}


/* =================================
   SUCCESS TITLE
================================= */

.success-box h2{
    margin:10px 0;

    color:#222;

    font-size:22px;
}


/* =================================
   SUCCESS MESSAGE
================================= */

.success-box p{
    margin:10px 0 22px;

    color:#666;

    font-size:14px;

    line-height:1.5;
}


/* =================================
   SUBMIT AGAIN BUTTON
================================= */

#submitAgainBtn{
    width:100%;

    padding:12px 20px;

    border:none;

    border-radius:8px;

    background:#4CAF50;

    color:white;

    font-size:16px;

    font-weight:600;

    cursor:pointer;

    transition:0.2s ease;
}

#submitAgainBtn:hover{
    background:#45a049;

    transform:translateY(-1px);
}


/* =================================
   MOBILE RESPONSIVE
================================= */

@media (max-width:600px){

    .container{
        width:90%;
        padding:25px;
    }

    h1{
        font-size:24px;
    }

    .success-box{
        width:90%;
        padding:25px 20px;
    }

}