*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    background:#f3f4f6;
}

.ict-container{
    max-width:1200px;
    margin:40px auto;
    padding:20px;
    font-family:Arial,sans-serif;
}

.ict-card{
    background:#fff;
    border-radius:30px;
    padding:40px;
    box-shadow:0 10px 30px rgba(0,0,0,0.08);
}

.ict-header{
    display:flex;
    align-items:center;
    gap:20px;
    margin-bottom:40px;
}

.ict-icon{
    width:90px;
    height:90px;
    border-radius:25px;
    background:#ff7a00;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:45px;
    color:#fff;
}

.ict-header h1{
    font-size:64px;
    color:#111827;
    margin-bottom:10px;
}

.ict-header p{
    color:#666;
    font-size:22px;
}

.ict-upload-box{
    border:3px dashed #ddd;
    border-radius:30px;
    padding:70px 20px;
    display:block;
    cursor:pointer;
    transition:0.3s;
}

.ict-upload-box:hover{
    border-color:#ff7a00;
    background:#fff7ed;
}

.ict-upload-content{
    text-align:center;
}

.ict-plus{
    width:80px;
    height:80px;
    background:#ff7a00;
    color:#fff;
    font-size:52px;
    border-radius:50%;
    margin:0 auto 25px;
    display:flex;
    align-items:center;
    justify-content:center;
}

.ict-upload-content h2{
    font-size:48px;
    color:#111827;
    margin-bottom:12px;
}

.ict-upload-content p{
    color:#777;
    font-size:22px;
}

#preview_area{
    margin-top:35px;
}

.preview-card{
    width:250px;
    background:#fff;
    border-radius:20px;
    padding:15px;
    box-shadow:0 5px 20px rgba(0,0,0,0.08);
}

.preview-card img{
    width:100%;
    border-radius:15px;
}

.file-name{
    margin-top:12px;
    font-size:18px;
    text-align:center;
    word-break:break-word;
}

.ict-quality-box{
    margin-top:35px;
}

.ict-quality-box label{
    display:block;
    font-size:26px;
    margin-bottom:20px;
}

#quality{
    width:100%;
}

.quality-value{
    margin-top:12px;
    font-size:22px;
    font-weight:700;
    color:#ff7a00;
}

#compress_btn{
    width:100%;
    margin-top:35px;
    background:#ff7a00;
    border:none;
    padding:24px;
    border-radius:20px;
    color:#fff;
    font-size:30px;
    font-weight:700;
    cursor:pointer;
    transition:0.3s;
}

#compress_btn:hover{
    background:#eb6f00;
}

#result{
    margin-top:40px;
}

.success-box{
    text-align:center;
    background:#f0fdf4;
    border-radius:20px;
    padding:35px;
}

.success-box h3{
    font-size:34px;
    margin-bottom:15px;
    color:#166534;
}

.success-box p{
    font-size:22px;
    margin-bottom:12px;
}

.download-btn{
    display:inline-block;
    margin-top:20px;
    background:#16a34a;
    color:#fff;
    padding:18px 30px;
    border-radius:15px;
    text-decoration:none;
    font-size:22px;
    font-weight:700;
}

.download-btn:hover{
    background:#15803d;
}

.error{
    background:#fef2f2;
    color:#dc2626;
    padding:20px;
    border-radius:15px;
    text-align:center;
    font-size:22px;
    font-weight:700;
}

@media(max-width:768px){

    .ict-header{
        flex-direction:column;
        text-align:center;
    }

    .ict-header h1{
        font-size:42px;
    }

    .ict-upload-content h2{
        font-size:30px;
    }

}