.co-study-dialog{width:calc(100% - 32px);max-width:480px;max-height:85dvh;overflow:auto;border:1px solid #d9e3ef;border-radius:18px;padding:22px;color:#203149;box-shadow:0 12px 48px #17365f26}.co-study-dialog::backdrop{background:#14294166}.co-study-dialog h2{font-size:19px;line-height:1.6;margin:0 0 12px}.co-study-dialog p{font-size:13px;line-height:1.8}.co-study-options label{display:flex;align-items:flex-start;gap:10px;padding:12px;border:1px solid #dce4ef;border-radius:12px;margin:12px 0;font-size:14px;line-height:1.6}.co-study-options input{flex-shrink:0;margin-top:5px}.co-study-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.co-study-actions button{flex:1;min-width:110px;margin:0}.co-study-link{display:block;overflow-wrap:anywhere;font-size:12px;line-height:1.7}.co-study-message{font-size:12px;line-height:1.8;color:#65758b}.co-study-message.error{color:#a14c40}