.csn-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:99999;display:flex;align-items:center;justify-content:center;padding:20px}.csn-overlay[hidden],.csn-toast[hidden]{display:none}.csn-modal{background:#fff;border-radius:14px;padding:22px;width:min(92vw,420px);box-shadow:0 20px 60px rgba(0,0,0,.25);position:relative;font-family:inherit}.csn-modal h3{margin:0 0 18px}.csn-modal label{display:block;margin:12px 0}.csn-modal input{width:100%;box-sizing:border-box;padding:11px 12px;border:1px solid #ccc;border-radius:8px;margin-top:6px}.csn-modal button#csn-submit{width:100%;padding:12px;border:0;border-radius:8px;cursor:pointer}.csn-close{position:absolute;left:12px;top:8px;border:0;background:transparent;font-size:28px;cursor:pointer}.csn-error{margin-top:10px;color:#b00020;font-size:13px}.csn-toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:100000;background:#222;color:#fff;padding:12px 18px;border-radius:10px;max-width:90vw;text-align:center;box-shadow:0 8px 24px rgba(0,0,0,.2)}