#chaghi-app{max-width:620px;margin:30px auto;font-family:Tahoma,"Vazirmatn",sans-serif;background:#fff;border-radius:12px;padding:28px;box-shadow:0 2px 14px rgb(0 0 0 / .08)}#chaghi-app h3{margin-top:0;color:#222;font-size:19px;border-bottom:2px solid #f0f0f0;padding-bottom:10px;margin-bottom:18px}#chaghi-app label{display:block;margin-bottom:16px;font-size:15px;color:#333}#chaghi-app input,#chaghi-app select{display:block;width:100%;margin-top:6px;padding:10px 12px;border:1px solid #d8d8d8;border-radius:8px;font-size:15px;box-sizing:border-box;background:#fafafa}#chaghi-app input:focus,#chaghi-app select:focus{outline:none;border-color:#2d7a5f;background:#fff}.chaghi-nav{display:flex;justify-content:space-between;margin-top:20px;gap:10px}.chaghi-nav button{flex:1;padding:12px;border:none;border-radius:8px;font-size:15px;cursor:pointer;background:#2d7a5f;color:#fff;transition:background 0.2s}.chaghi-nav button:hover{background:#235f4a}#chaghi-prev{background:#ccc;color:#333}#chaghi-prev:hover{background:#bbb}.chaghi-progress{height:6px;background:#eee;border-radius:3px;margin-top:22px;overflow:hidden}.chaghi-progress-bar{height:100%;width:16.6%;background:#2d7a5f;transition:width 0.3s ease}#chaghi-result{background:#f5faf7;border:1px solid #d3ebe0;border-radius:10px;padding:22px;margin-top:20px;white-space:pre-line;line-height:1.9;font-size:15px;color:#1c3c30}.chaghi-error{color:#b32d2e;background:#fdecec;border:1px solid #f5c2c2;padding:12px;border-radius:8px;margin-top:14px}