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

body{
    font-family:Arial,Helvetica,sans-serif;
    background:linear-gradient(135deg,#dff8ff,#dfffe8);
    color:#333;
}

.container{
    width:95%;
    max-width:900px;
    margin:40px auto;
}

h1{
    text-align:center;
    font-size:42px;
    color:#0099cc;
    margin-bottom:10px;
}

.subtitle{
    text-align:center;
    color:#666;
    margin-bottom:40px;
}

.files{
    background:#fff;
    border-radius:12px;
    padding:20px;
    box-shadow:0 8px 20px rgba(0,0,0,.08);
    margin-bottom:30px;
}

.files h2{
    margin-bottom:20px;
    color:#009688;
}

.file{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:14px 0;
    border-bottom:1px solid #eee;
}

.file:last-child{
    border-bottom:none;
}

.filename{
    font-weight:bold;
    word-break:break-all;
}

.filesize{
    color:#888;
}

.empty{
    text-align:center;
    color:#888;
    padding:20px;
}

form{
    background:#fff;
    border-radius:12px;
    padding:25px;
    box-shadow:0 8px 20px rgba(0,0,0,.08);
}

form h2{
    margin-bottom:20px;
    color:#009688;
}

.plan{
    display:block;
    margin-bottom:15px;
    font-size:18px;
    cursor:pointer;
}

.plan input{
    margin-right:10px;
}

button{
    width:100%;
    margin-top:20px;
    padding:16px;
    border:none;
    border-radius:8px;
    background:#00b894;
    color:#fff;
    font-size:20px;
    cursor:pointer;
    transition:.2s;
}

button:hover{
    background:#009f7f;
}

@media(max-width:700px){

.file{
    flex-direction:column;
    align-items:flex-start;
}

.filesize{
    margin-top:6px;
}

}