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

body{

    background:#111827;
    color:white;
    display:flex;
    justify-content:center;
    align-items:center;
    min-height:100vh;

}

.container{

    width:90%;
    max-width:750px;
    background:#1f2937;
    padding:40px;
    border-radius:20px;
    text-align:center;
    box-shadow:0 0 30px rgba(0,0,0,.4);

}

h1{

    font-size:48px;
    margin-bottom:10px;

}

.subtitle{

    color:#9ca3af;
    margin-bottom:30px;

}

input,
select,
button{

    width:100%;
    padding:15px;
    margin-top:15px;
    border:none;
    border-radius:10px;
    font-size:18px;

}

button{

    background:#3b82f6;
    color:white;
    cursor:pointer;
    transition:.3s;

}

button:hover{

    background:#2563eb;

}

canvas{

    margin-top:30px;
    max-width:100%;
    border-radius:10px;
    background:white;

}

#downloadLink{

    display:inline-block;
    margin-top:20px;
    color:white;
    background:#22c55e;
    padding:15px 25px;
    border-radius:10px;
    text-decoration:none;

}

#dropArea{

    border:3px dashed #3b82f6;
    border-radius:15px;
    padding:40px;
    cursor:pointer;
    transition:.3s;
    user-select:none;

}

#dropArea:hover{

    background:#273549;

}

#dropArea.dragover{

    background:#1e40af;
    border-color:#60a5fa;

}

#dropArea .icon{

    font-size:60px;
    margin-bottom:10px;

}

#dropArea h3{

    margin-bottom:10px;

}

#dropArea p{

    color:#d1d5db;

}

label{

    display:block;
    margin-top:10px;
    text-align:left;
    cursor:pointer;

}

label input{

    width:auto;
    margin-right:10px;

}

.checkbox-label{

    display:flex;
    align-items:center;
    gap:10px;
    margin-top:15px;

}

.checkbox-label input{

    width:auto;
    margin:0;

}

#customWidth,
#customHeight{

    width:100%;
    padding:15px;
    margin-top:10px;
    border:none;
    border-radius:10px;
    font-size:18px;

}

#customSizeArea{

    display:none;
    margin-top:20px;

}

#customSizeArea.show{

    display:block;

}

/* ---------------- Platform Info ---------------- */

.info-card{

    margin-top:25px;
    background:#111827;
    border:2px solid #374151;
    border-radius:15px;
    padding:25px;

}

.info-card h3{

    font-size:28px;
    margin-bottom:10px;

}

#infoSize{

    font-size:26px;
    color:#60a5fa;
    font-weight:bold;
    margin-bottom:20px;

}

.info-grid{

    display:grid;
    grid-template-columns:1fr 1fr;
    gap:20px;
    margin-bottom:20px;

}

.info-label{

    display:block;
    color:#9ca3af;
    font-size:15px;
    margin-bottom:5px;

}

.info-grid strong{

    font-size:20px;

}

#infoDesc{

    color:#d1d5db;
    line-height:1.7;

}

@media(max-width:650px){

    .info-grid{

        grid-template-columns:1fr;

    }

}

/* ---------------- SEO Content ---------------- */

.seo-content{

    margin-top:50px;

    padding:30px;

    background:#111827;

    border:2px solid #374151;

    border-radius:15px;

    text-align:left;

}

.seo-content h2{

    color:#60a5fa;

    font-size:28px;

    margin:25px 0 15px;

}

.seo-content p{

    color:#d1d5db;

    font-size:17px;

    line-height:1.9;

    margin-bottom:25px;

}

.seo-content strong{

    color:#ffffff;

}