/* ==========================================
   ToolNova - JPG a PNG
========================================== */

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

body{
    background:#0f172a;
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    padding:30px;
}

.container{
    width:100%;
    max-width:800px;
    background:#1e293b;
    border-radius:20px;
    padding:40px;
    box-shadow:0 20px 50px rgba(0,0,0,.35);
}

h1{
    text-align:center;
    color:white;
    font-size:36px;
    margin-bottom:10px;
}

p{
    text-align:center;
    color:#94a3b8;
    margin-bottom:30px;
}

#dropZone{

    border:3px dashed #3b82f6;

    border-radius:18px;

    padding:60px 30px;

    text-align:center;

    cursor:pointer;

    transition:.3s;

    background:#0f172a;

}

#dropZone:hover{

    border-color:#60a5fa;

    background:#172554;

}

#dropZone.dragover{

    border-color:#22c55e;

    background:#052e16;

}

#dropZone p{

    color:white;

    font-size:22px;

    margin-bottom:10px;

}

#dropZone span{

    color:#94a3b8;

    font-size:15px;

}

.preview{

    margin-top:35px;

    display:flex;

    justify-content:center;

}

.preview img{

    max-width:100%;

    max-height:420px;

    display:none;

    border-radius:15px;

    box-shadow:0 10px 30px rgba(0,0,0,.3);

}

.buttons{

    display:grid;

    grid-template-columns:repeat(3,1fr);

    gap:15px;

    margin-top:35px;

}

button{

    padding:15px;

    border:none;

    border-radius:12px;

    cursor:pointer;

    font-size:16px;

    font-weight:600;

    transition:.3s;

    color:white;

}

button:hover{

    transform:translateY(-3px);

}

#convert{

    background:#3b82f6;

}

#convert:hover{

    background:#2563eb;

}

#download{

    background:#10b981;

}

#download:hover{

    background:#059669;

}

#download:disabled{

    background:#475569;

    cursor:not-allowed;

    transform:none;

}

#clear{

    background:#ef4444;

}

#clear:hover{

    background:#dc2626;

}

@media(max-width:768px){

.container{

    padding:25px;

}

h1{

    font-size:28px;

}

.buttons{

    grid-template-columns:1fr;

}

#dropZone{

    padding:40px 20px;

}

#dropZone p{

    font-size:18px;

}

}