*{box-sizing:border-box}body{margin:0;background:#f4f7fb;font-family:Arial,sans-serif;color:#18202b}main{max-width:1100px;margin:auto;padding:16px}header,section,article{background:#fff;border-radius:16px;padding:18px;margin-bottom:16px;box-shadow:0 3px 18px #0001}header{position:relative}header a{position:absolute;right:18px;top:18px;text-decoration:none;background:#eef2f7;padding:9px;border-radius:8px}.grid,.platformGrid{display:grid;grid-template-columns:1fr 1fr;gap:16px}label{display:block;font-weight:700;margin:10px 0 6px}input,textarea,select{width:100%;padding:11px;border:1px solid #d7dde5;border-radius:9px;margin-bottom:8px;font:inherit}textarea{min-height:100px}button{border:0;border-radius:9px;padding:11px 15px;background:#1769e0;color:white;font-weight:700;margin:5px 5px 5px 0;cursor:pointer}.platforms{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.platforms label{background:#f5f7fa;padding:11px;border-radius:9px}.platforms input{width:auto;margin:0}.actions{display:flex;gap:8px}.note{font-size:12px;color:#687684}.ok{color:green;font-weight:700}.err{color:#b00020;font-weight:700}.row{padding:12px 0;border-bottom:1px solid #eee}.thumb{max-width:240px;max-height:180px;border-radius:10px;margin-top:10px}@media(max-width:760px){.grid,.platformGrid{grid-template-columns:1fr}.platforms{grid-template-columns:1fr 1fr}header a{position:static;display:inline-block;margin-top:10px}.actions button{flex:1}}

.platforms{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}.platforms label{padding:10px;border:1px solid #ddd;border-radius:10px;background:#fff}.actions{display:flex;gap:10px;flex-wrap:wrap}.actions button{min-height:46px}

.upload-options{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0}.upload-options button{flex:1;min-width:150px}

.saved-accounts{margin:.5rem 0 1rem;padding:.75rem;border:1px solid #ddd;border-radius:10px;background:#f7f7f7;line-height:1.6;font-size:.92rem}.saved-accounts strong{display:block;margin-bottom:.25rem}

.fileInput{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}.fileButton{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 15px;border-radius:9px;background:#1769e0;color:#fff;font-weight:700;cursor:pointer;flex:1;min-width:150px;margin:5px 5px 5px 0}.fileButton:active{transform:scale(.98)}#preview{min-height:10px}.upload-options{display:flex;gap:8px;flex-wrap:wrap}