*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:#f5f5f5;color:#333;min-height:100vh}#app-root{min-height:100vh}:root{--primary: #25D366;--primary-dark: #128C7E;--primary-light: #dcf8c6;--danger: #e74c3c;--text: #333;--text-light: #666;--border: #ddd;--radius: 8px;--shadow: 0 2px 8px rgba(0,0,0,.1)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border:none;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;text-decoration:none}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-outline{background:transparent;color:var(--primary-dark);border:2px solid var(--primary)}.btn-outline:hover{background:var(--primary-light)}.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.form-group{margin-bottom:16px}.form-group label{display:block;font-weight:600;margin-bottom:6px;color:var(--text)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius);font-size:15px;transition:border-color .2s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}.error-msg{color:var(--danger);font-size:13px;margin-top:8px}.success-msg{color:var(--primary-dark);font-size:13px;margin-top:8px}